Add timeout to make sure temporary selected instances are up to date with last selection rectangle change

Don't show in changelog

Core/GDCore/Events/Instruction.cpp

@@ -55,6 +55,10 @@ void Instruction::SetParameter(std::size_t nb, const gd::Expression& val) {
   parameters[nb] = val;
 }
 
+void Instruction::AddParameter(const gd::Expression& val) {
+  parameters.push_back(val);
+}
+
 std::shared_ptr<Instruction> GD_CORE_API
 CloneRememberingOriginalElement(std::shared_ptr<Instruction> instruction) {
   std::shared_ptr<Instruction> copy =

Core/GDCore/Events/Instruction.h

@@ -123,6 +123,11 @@ class GD_CORE_API Instruction {
    */
   void SetParameter(std::size_t nb, const gd::Expression& val);
 
+  /** Add a parameter at the end
+   * \param val The new value of the parameter
+   */
+  void AddParameter(const gd::Expression& val);
+
   /** \brief Get a reference to the std::vector containing the parameters.
    * \return A std::vector containing the parameters
    */

Core/GDCore/Extensions/Builtin/AdvancedExtension.cpp

@@ -105,7 +105,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAdvancedExtension(
           "res/function32.png",
           "res/function16.png")
       .AddParameter("functionParameterName", "Parameter name")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   extension
       .AddCondition(
@@ -117,7 +118,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAdvancedExtension(
           "res/function32.png",
           "res/function16.png")
       .AddParameter("functionParameterName", "Parameter name")
-      .UseStandardRelationalOperatorParameters("string");
+      .UseStandardRelationalOperatorParameters(
+          "string", gd::ParameterOptions::MakeNewOptions());
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/AudioExtension.cpp

@@ -146,69 +146,83 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
       .AddAction("ModVolumeSoundCanal",
                  _("Volume of the sound on a channel"),
                  _("This action modifies the volume of the sound on the "
-                   "specified channel. The volume is between 0 and 100."),
+                   "specified channel."),
                  _("the volume of the sound on channel _PARAM1_"),
                  _("Sounds on channels"),
                  "res/actions/sonVolume24.png",
                  "res/actions/sonVolume.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Volume (0-100)")))
       .MarkAsAdvanced();
 
   extension
       .AddAction("ModVolumeMusicCanal",
                  _("Volume of the music on a channel"),
                  _("This action modifies the volume of the music on the "
-                   "specified channel. The volume is between 0 and 100."),
+                   "specified channel."),
                  _("the volume of the music on channel _PARAM1_"),
                  _("Music on channels"),
                  "res/actions/musicVolume24.png",
                  "res/actions/musicVolume.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Volume (0-100)")))
       .MarkAsAdvanced();
 
   extension
       .AddAction("ModGlobalVolume",
                  _("Game global volume"),
-                 _("This action modifies the global volume of the game. The "
-                   "volume is between 0 and 100."),
+                 _("This action modifies the global volume of the game."),
                  _("the global sound level"),
                  "",
                  "res/actions/volume24.png",
                  "res/actions/volume.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Volume (0-100)")))
       .MarkAsSimple();
 
   extension
       .AddAction("ModPitchSoundChannel",
                  _("Pitch of the sound of a channel"),
                  _("This action modifies the pitch (speed) of the sound on a "
-                   "channel.\n1 is the default pitch."),
+                   "channel."),
                  _("the pitch of the sound on channel _PARAM1_"),
                  _("Sounds on channels"),
                  "res/actions/son24.png",
                  "res/actions/son.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Pitch (1 by default)")))
       .MarkAsAdvanced();
 
   extension
       .AddAction("ModPitchMusicChannel",
                  _("Pitch of the music on a channel"),
                  _("This action modifies the pitch of the music on the "
-                   "specified channel. 1 is the default pitch"),
+                   "specified channel."),
                  _("the pitch of the music on channel _PARAM1_"),
                  _("Music on channels"),
                  "res/actions/music24.png",
                  "res/actions/music.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Pitch (1 by default)")))
       .MarkAsAdvanced();
 
   extension
@@ -222,7 +236,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
                  "res/actions/son.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Position (in seconds)")))
       .MarkAsAdvanced();
 
   extension
@@ -236,7 +253,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
                  "res/actions/music.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Position (in seconds)")))
       .MarkAsAdvanced();
 
   extension
@@ -448,15 +468,17 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
       .AddCondition(
           "SoundCanalVolume",
           _("Volume of the sound on a channel"),
-          _("Test the volume of the sound on the specified channel. The volume "
-            "is between 0 and 100."),
+          _("Test the volume of the sound on the specified channel."),
           _("the volume of the sound on channel _PARAM1_"),
           _("Sounds on channels"),
           "res/conditions/sonVolume24.png",
           "res/conditions/sonVolume.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Volume to compare to (0-100)")))
       .MarkAsAdvanced();
 
   extension
@@ -471,7 +493,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
           "res/conditions/musicVolume.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Volume to compare to (0-100)")))
       .MarkAsAdvanced();
 
   extension
@@ -484,7 +509,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
           "res/conditions/volume24.png",
           "res/conditions/volume.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Volume to compare to (0-100)")));
 
   extension
       .AddCondition(
@@ -498,22 +526,27 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
           "res/conditions/sonVolume.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Pitch to compare to (1 by default)")))
       .MarkAsAdvanced();
 
   extension
       .AddCondition(
           "MusicChannelPitch",
           _("Pitch of the music on a channel"),
-          _("Test the pitch (speed) of the music on a specified channel. 1 is "
-            "the default pitch."),
+          _("Test the pitch (speed) of the music on a specified channel."),
           _("the pitch of the music on channel _PARAM1_"),
           _("Music on channels"),
           "res/conditions/musicVolume24.png",
           "res/conditions/musicVolume.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Pitch to compare to (1 by default)")))
       .MarkAsAdvanced();
 
   extension
@@ -527,7 +560,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
           "res/conditions/sonVolume.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Position to compare to (in seconds)")))
       .MarkAsAdvanced();
 
   extension
@@ -541,7 +577,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
           "res/conditions/musicVolume.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Channel identifier"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Position to compare to (in seconds)")))
       .MarkAsAdvanced();
 
   extension

Core/GDCore/Extensions/Builtin/BaseObjectExtension.cpp

@@ -40,7 +40,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                    "res/conditions/position_black.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsSimple();
 
   obj.AddAction("MettreX",
@@ -52,7 +53,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                 "res/actions/position_black.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsSimple();
 
   obj.AddCondition("PosY",
@@ -64,7 +66,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                    "res/conditions/position_black.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsSimple();
 
   obj.AddAction("MettreY",
@@ -76,7 +79,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                 "res/actions/position_black.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsSimple();
 
   obj.AddAction("MettreXY",
@@ -120,7 +124,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
          _("Position/Center"),
          "res/actions/position24_black.png")
       .AddParameter("object", _("Object"))
-      .UseStandardParameters("number");
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions());
 
   obj.AddExpressionAndConditionAndAction(
          "number",
@@ -131,7 +135,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
          _("Position/Center"),
          "res/actions/position24_black.png")
       .AddParameter("object", _("Object"))
-      .UseStandardParameters("number");
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions());
 
   obj.AddExpressionAndCondition("number",
                                 "BoundingBoxLeft",
@@ -142,7 +146,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                                 _("Position/Bounding Box"),
                                 "res/conditions/bounding-box-left_black.svg")
       .AddParameter("object", _("Object"))
-      .UseStandardParameters("number");
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions());
 
   obj.AddExpressionAndCondition(
          "number",
@@ -153,7 +157,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
          _("Position/Bounding Box"),
          "res/conditions/bounding-box-top_black.svg")
       .AddParameter("object", _("Object"))
-      .UseStandardParameters("number");
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions());
 
   obj.AddExpressionAndCondition("number",
                                 "BoundingBoxRight",
@@ -164,7 +168,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                                 _("Position/Bounding Box"),
                                 "res/conditions/bounding-box-right_black.svg")
       .AddParameter("object", _("Object"))
-      .UseStandardParameters("number");
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions());
 
   obj.AddExpressionAndCondition("number",
                                 "BoundingBoxBottom",
@@ -175,7 +179,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                                 _("Position/Bounding Box"),
                                 "res/conditions/bounding-box-bottom_black.svg")
       .AddParameter("object", _("Object"))
-      .UseStandardParameters("number");
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions());
 
   obj.AddExpressionAndCondition("number",
                                 "BoundingBoxCenterX",
@@ -186,7 +190,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                                 _("Position/Bounding Box"),
                                 "res/conditions/bounding-box-center_black.svg")
       .AddParameter("object", _("Object"))
-      .UseStandardParameters("number");
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions());
 
   obj.AddExpressionAndCondition("number",
                                 "BoundingBoxCenterY",
@@ -197,7 +201,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                                 _("Position/Bounding Box"),
                                 "res/conditions/bounding-box-center_black.svg")
       .AddParameter("object", _("Object"))
-      .UseStandardParameters("number");
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions());
 
   obj.AddAction("MettreAutourPos",
                 _("Put around a position"),
@@ -226,7 +230,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                 "res/actions/direction_black.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle (in degrees)")));
 
   obj.AddAction("Rotate",
                 _("Rotate"),
@@ -382,7 +389,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                 "res/actions/planicon.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions());
 
   obj.AddAction("ChangeLayer",
                 _("Layer"),
@@ -407,7 +415,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
 
       .AddParameter("object", _("Object"))
       .AddParameter("objectvar", _("Variable"))
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions());
 
   obj.AddAction("ModVarObjetTxt",
                 _("Text of an object variable"),
@@ -419,7 +428,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
 
       .AddParameter("object", _("Object"))
       .AddParameter("objectvar", _("Variable"))
-      .UseStandardOperatorParameters("string");
+      .UseStandardOperatorParameters("string",
+                                     ParameterOptions::MakeNewOptions());
 
   obj.AddAction("SetObjectVariableAsBoolean",
                 _("Boolean value of an object variable"),
@@ -516,7 +526,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                    "res/conditions/direction_black.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle to compare to (in degrees)")))
       .MarkAsAdvanced();
 
   obj.AddCondition("Plan",
@@ -528,7 +541,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                    "res/conditions/planicon.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddCondition("Layer",
@@ -585,7 +599,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                    "res/conditions/vitesse.png")
 
       .AddParameter("object", _("Object"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddCondition("AngleOfDisplacement",
@@ -613,7 +628,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
 
       .AddParameter("object", _("Object"))
       .AddParameter("objectvar", _("Variable"))
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions());
 
   obj.AddCondition("VarObjetTxt",
                    _("Text of an object variable"),
@@ -625,7 +641,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
 
       .AddParameter("object", _("Object"))
       .AddParameter("objectvar", _("Variable"))
-      .UseStandardRelationalOperatorParameters("string");
+      .UseStandardRelationalOperatorParameters(
+          "string", ParameterOptions::MakeNewOptions());
 
   obj.AddCondition("ObjectVariableAsBoolean",
                    _("Boolean value of an object variable"),
@@ -1423,34 +1440,39 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
           "res/conditions/nbObjet24.png",
           "res/conditions/nbObjet.png")
       .AddParameter("objectList", _("Object"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsSimple()
       .SetHidden();
 
-  extension.AddExpressionAndCondition(
-      "number",
-      "SceneInstancesCount",
-      _("Number of object instances on the scene"),
-      _("the number of instances of the specified objects living on the scene"),
-      _("the number of _PARAM1_ living on the scene"),
-      _("Objects"),
-      "res/conditions/nbObjet24.png")
-    .AddCodeOnlyParameter("objectsContext", "")
-    .AddParameter("objectListOrEmptyWithoutPicking", _("Object"))
-    .UseStandardParameters("number")
-    .MarkAsSimple();
+  extension
+      .AddExpressionAndCondition(
+          "number",
+          "SceneInstancesCount",
+          _("Number of object instances on the scene"),
+          _("the number of instances of the specified objects living on the "
+            "scene"),
+          _("the number of _PARAM1_ living on the scene"),
+          _("Objects"),
+          "res/conditions/nbObjet24.png")
+      .AddCodeOnlyParameter("objectsContext", "")
+      .AddParameter("objectListOrEmptyWithoutPicking", _("Object"))
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
+      .MarkAsSimple();
 
-  extension.AddExpressionAndCondition(
-      "number",
-      "PickedInstancesCount",
-      _("Number of object instances currently picked"),
-      _("the number of instances picked by the previous conditions (or actions)"),
-      _("the number of _PARAM0_ currently picked"),
-      _("Objects"),
-      "res/conditions/nbObjet24.png")
-    .AddParameter("objectListOrEmptyWithoutPicking", _("Object"))
-    .UseStandardParameters("number")
-    .MarkAsSimple();
+  extension
+      .AddExpressionAndCondition(
+          "number",
+          "PickedInstancesCount",
+          _("Number of object instances currently picked"),
+          _("the number of instances picked by the previous conditions (or "
+            "actions)"),
+          _("the number of _PARAM0_ currently picked"),
+          _("Objects"),
+          "res/conditions/nbObjet24.png")
+      .AddParameter("objectListOrEmptyWithoutPicking", _("Object"))
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
+      .MarkAsSimple();
 
   extension
       .AddCondition(
@@ -1559,7 +1581,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                      "",
                      "res/conditions/nbObjet.png")
       .AddParameter("objectList", _("Object"))
-      .SetHidden(); // Deprecated
+      .SetHidden();  // Deprecated
 
   obj.AddStrExpression("ObjectName",
                        _("Object name"),

Core/GDCore/Extensions/Builtin/CameraExtension.cpp

@@ -37,7 +37,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
           "",
           "res/conditions/camera24.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number (default : 0)"), "", true)
@@ -69,7 +69,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
           "",
           "res/conditions/camera24.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number (default : 0)"), "", true)
@@ -104,7 +104,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number"), "", true)
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -120,7 +120,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number"), "", true)
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -137,7 +137,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number"), "", true)
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -154,7 +154,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number"), "", true)
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -171,7 +171,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number"), "", true)
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -188,7 +188,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number"), "", true)
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -201,7 +201,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
           "",
           "res/conditions/camera24.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number (default : 0)"), "", true)
@@ -542,7 +542,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Time scale (1 by default)")))
       .MarkAsAdvanced();
 
   extension
@@ -572,7 +575,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension

Core/GDCore/Extensions/Builtin/MathematicalToolsExtension.cpp

@@ -492,6 +492,16 @@ BuiltinExtensionsImplementer::ImplementsMathematicalToolsExtension(
                      "",
                      "res/mathfunction.png")
       .SetHelpPath("/all-features/expressions");
+
+  extension
+      .AddExpression("lerpAngle",
+                     _("Lerp (Linear interpolation) between two angles"),
+                     _("Linearly interpolates between two angles (in degrees) by taking the shortest direction around the circle."),
+                     "",
+                     "res/mathfunction.png")
+      .AddParameter("expression", _("Starting angle, in degrees"))
+      .AddParameter("expression", _("Destination angle, in degrees"))
+      .AddParameter("expression", _("Interpolation value between 0 and 1."));
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/MouseExtension.cpp

@@ -160,7 +160,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
           "",
           "res/conditions/mouse24.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number (default : 0)"), "", true)
@@ -180,7 +180,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
           "",
           "res/conditions/mouse24.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number (default : 0)"), "", true)
@@ -276,7 +276,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
                                  "res/conditions/touch24.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Touch identifier"))
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number (default : 0)"), "", true)
@@ -292,7 +292,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
                                  "res/conditions/touch24.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("expression", _("Touch identifier"))
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", ParameterOptions::MakeNewOptions())
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
       .AddParameter("expression", _("Camera number (default : 0)"), "", true)

Core/GDCore/Extensions/Builtin/SpriteExtension/Point.h

@@ -31,7 +31,7 @@ class GD_CORE_API Point {
   /**
    * Change point position.
    */
-  void SetXY(float x_, float y_) {
+  void SetXY(double x_, double y_) {
     x = x_;
     y = y_;
   }
@@ -39,27 +39,27 @@ class GD_CORE_API Point {
   /**
    * Change point X position.
    */
-  void SetX(float x_) { x = x_; }
+  void SetX(double x_) { x = x_; }
 
   /**
    * Change point Y position.
    */
-  void SetY(float y_) { y = y_; }
+  void SetY(double y_) { y = y_; }
 
   /**
    * Get point X position.
    */
-  float GetX() const { return x; }
+  double GetX() const { return x; }
 
   /**
    * Get point Y position.
    */
-  float GetY() const { return y; }
+  double GetY() const { return y; }
 
  private:
   gd::String name;
-  float x;
-  float y;
+  double x;
+  double y;
 };
 
 #endif  // GDCORE_POINT_H

Core/GDCore/Extensions/Builtin/SpriteExtension/Polygon2d.cpp

@@ -4,13 +4,15 @@
  * reserved. This project is released under the MIT License.
  */
 #include "Polygon2d.h"
-#include "GDCore/Vector2.h"
+
 #include <cmath>
 #include <iostream>
 
-void Polygon2d::Rotate(float angle) {
-  float t, cosa = cos(-angle),
-           sina = sin(-angle);  // We want a clockwise rotation
+#include "GDCore/Vector2.h"
+
+void Polygon2d::Rotate(double angle) {
+  double t, cosa = cos(-angle),
+            sina = sin(-angle);  // We want a clockwise rotation
 
   for (std::size_t i = 0; i < vertices.size(); ++i) {
     t = vertices[i].x;
@@ -19,7 +21,7 @@ void Polygon2d::Rotate(float angle) {
   }
 }
 
-void Polygon2d::Move(float x, float y) {
+void Polygon2d::Move(double x, double y) {
   for (std::size_t i = 0; i < vertices.size(); i++) {
     vertices[i].x += x;
     vertices[i].y += y;
@@ -50,13 +52,13 @@ bool Polygon2d::IsConvex() const {
       (edges[0].x * edges[0 + 1].y - edges[0].y * edges[0 + 1].x) > 0;
 
   for (std::size_t i = 1; i < edges.size() - 1; ++i) {
-    float zCrossProduct =
+    double zCrossProduct =
         edges[i].x * edges[i + 1].y - edges[i].y * edges[i + 1].x;
     if ((zCrossProduct > 0) != zProductIsPositive) return false;
   }
 
-  float lastZCrossProduct = edges[edges.size() - 1].x * edges[0].y -
-                            edges[edges.size() - 1].y * edges[0].x;
+  double lastZCrossProduct = edges[edges.size() - 1].x * edges[0].y -
+                             edges[edges.size() - 1].y * edges[0].x;
   if ((lastZCrossProduct > 0) != zProductIsPositive) return false;
 
   return true;
@@ -75,7 +77,7 @@ gd::Vector2f Polygon2d::ComputeCenter() const {
   return center;
 }
 
-Polygon2d Polygon2d::CreateRectangle(float width, float height) {
+Polygon2d Polygon2d::CreateRectangle(double width, double height) {
   Polygon2d rect;
   rect.vertices.push_back(gd::Vector2f(-width / 2.0f, -height / 2.0f));
   rect.vertices.push_back(gd::Vector2f(+width / 2.0f, -height / 2.0f));

Core/GDCore/Extensions/Builtin/SpriteExtension/Polygon2d.h

@@ -5,9 +5,10 @@
  */
 #ifndef GDCORE_POLYGON_H
 #define GDCORE_POLYGON_H
-#include "GDCore/Vector2.h"
 #include <vector>
 
+#include "GDCore/Vector2.h"
+
 /**
  * \brief Represents a polygon. Usually used for collisions masks.
  *
@@ -42,7 +43,7 @@ class GD_CORE_API Polygon2d {
    * \note Edges are updated, there is no need to call ComputeEdges after
    * calling Move.
    */
-  void Move(float x, float y);
+  void Move(double x, double y);
 
   /**
    * \brief Rotate the polygon.
@@ -52,7 +53,7 @@ class GD_CORE_API Polygon2d {
    * \warning edges vector is not updated, you have to call ComputeEdges if
    * needed.
    */
-  void Rotate(float angle);
+  void Rotate(double angle);
 
   /**
    * \brief Automatically fill edges vector using vertices.
@@ -77,7 +78,7 @@ class GD_CORE_API Polygon2d {
   /**
    * \brief Create a rectangle
    */
-  static Polygon2d CreateRectangle(float width, float height);
+  static Polygon2d CreateRectangle(double width, double height);
   ///@}
 };
 

Core/GDCore/Extensions/Builtin/SpriteExtension/SpriteExtension.cpp

@@ -44,7 +44,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                 "res/actions/opacity.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Opacity (0-255)")))
       .MarkAsSimple();
 
   obj.AddAction("ChangeAnimation",
@@ -57,7 +60,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                 "res/actions/animation.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsSimple();
 
   obj.AddAction("SetAnimationName",
@@ -86,7 +90,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
       .SetHidden()  // Hide as 8 direction is not supported officially in the
                     // interface.
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddAction("ChangeSprite",
@@ -98,7 +103,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                 "res/actions/sprite.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddAction("PauseAnimation",
@@ -134,7 +140,9 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
          "res/actions/animation.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(_("Speed scale")))
       .MarkAsSimple();
 
   obj.AddAction("TourneVersPos",
@@ -162,7 +170,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                 "res/actions/scale_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Scale (1 by default)")))
       .MarkAsAdvanced();
 
   obj.AddAction("ChangeScaleWidth",
@@ -174,7 +185,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                 "res/actions/scaleWidth_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Scale (1 by default)")))
       .MarkAsAdvanced();
 
   obj.AddAction("ChangeScaleHeight",
@@ -186,7 +200,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                 "res/actions/scaleHeight_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Scale (1 by default)")))
       .MarkAsAdvanced();
 
   obj.AddAction("ChangeWidth",
@@ -198,7 +215,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                 "res/actions/scaleWidth_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddCondition("Width",
@@ -210,7 +228,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                    "res/conditions/scaleWidth_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddAction("ChangeHeight",
@@ -222,7 +241,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                 "res/actions/scaleHeight_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddCondition("Height",
@@ -234,7 +254,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                    "res/conditions/scaleHeight_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddAction("SetSize",
@@ -260,7 +281,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
          "res/conditions/animation.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddCondition("AnimationName",
@@ -288,7 +310,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
       .SetHidden()  // Hide as 8 direction is not supported officially in the
                     // interface.
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions());
 
   obj.AddCondition("Sprite",
                    _("Current frame"),
@@ -301,7 +324,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                    "res/conditions/sprite.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddCondition("AnimStopped",
@@ -349,7 +373,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                    "res/conditions/scaleWidth_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Scale (1 by default)")))
       .MarkAsAdvanced();
 
   obj.AddCondition("ScaleHeight",
@@ -361,7 +388,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                    "res/conditions/scaleHeight_black.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Scale (1 by default)")))
       .MarkAsAdvanced();
 
   obj.AddCondition("Opacity",
@@ -374,7 +404,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                    "res/conditions/opacity.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          ParameterOptions::MakeNewOptions().SetDescription(
+              _("Opacity to compare to (0-255)")))
       .MarkAsSimple();
 
   obj.AddCondition(
@@ -387,7 +420,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
          "res/conditions/opacity.png")
 
       .AddParameter("object", _("Object"), "Sprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddAction("ChangeColor",
@@ -549,7 +583,14 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
 
   obj.AddExpression("Sprite",
                     _("Image"),
-                    _("Animation frame of the object"),
+                    _("Current frame of the animation of the object"),
+                    _("Animations and images"),
+                    "res/actions/sprite.png")
+      .AddParameter("object", _("Object"), "Sprite");
+
+  obj.AddExpression("AnimationFrameCount",
+                    _("Number of frames"),
+                    _("Number of frames in the current animation of the object"),
                     _("Animations and images"),
                     "res/actions/sprite.png")
       .AddParameter("object", _("Object"), "Sprite");

Core/GDCore/Extensions/Builtin/TimeExtension.cpp

@@ -65,7 +65,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsTimeExtension(
                     "res/conditions/time24.png",
                     "res/conditions/time.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Time scale (1 by default)")))
       .MarkAsAdvanced();
 
   extension
@@ -155,7 +158,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsTimeExtension(
                  "",
                  "res/timer_black.svg",
                  "res/timer_black.svg")
-      .AddParameter("expression", "Time to wait in seconds")
+      .AddParameter("expression", _("Time to wait in seconds"))
       .SetHelpPath("/all-features/timers-and-time/wait-action");
 
   extension

Core/GDCore/Extensions/Builtin/VariablesExtension.cpp

@@ -34,7 +34,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                     "res/conditions/var24.png",
                     "res/conditions/var.png")
       .AddParameter("scenevar", _("Variable"))
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions());
 
   extension
       .AddCondition("VarSceneTxt",
@@ -45,7 +46,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                     "res/conditions/var24.png",
                     "res/conditions/var.png")
       .AddParameter("scenevar", _("Variable"))
-      .UseStandardRelationalOperatorParameters("string");
+      .UseStandardRelationalOperatorParameters(
+          "string", ParameterOptions::MakeNewOptions());
 
   extension
       .AddCondition(
@@ -107,7 +109,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                     "res/conditions/var24.png",
                     "res/conditions/var.png")
       .AddParameter("globalvar", _("Variable"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -119,7 +122,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                     "res/conditions/var24.png",
                     "res/conditions/var.png")
       .AddParameter("globalvar", _("Variable"))
-      .UseStandardRelationalOperatorParameters("string")
+      .UseStandardRelationalOperatorParameters(
+          "string", ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -157,7 +161,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"))
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions());
 
   extension
       .AddAction("ModVarSceneTxt",
@@ -168,7 +173,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"))
-      .UseStandardOperatorParameters("string");
+      .UseStandardOperatorParameters("string",
+                                     ParameterOptions::MakeNewOptions());
 
   extension
       .AddAction(
@@ -203,7 +209,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("globalvar", _("Variable"))
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension
@@ -215,7 +222,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("globalvar", _("Variable"))
-      .UseStandardOperatorParameters("string")
+      .UseStandardOperatorParameters("string",
+                                     ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   extension

Core/GDCore/Extensions/Metadata/InstructionMetadata.cpp

@@ -94,13 +94,15 @@ InstructionMetadata& InstructionMetadata::AddCodeOnlyParameter(
 }
 
 InstructionMetadata& InstructionMetadata::UseStandardOperatorParameters(
-    const gd::String& type, const gd::String& typeExtraInfo) {
+    const gd::String& type, const ParameterOptions &options) {
   const gd::String& expressionValueType =
       gd::ValueTypeMetadata::GetPrimitiveValueType(type);
   SetManipulatedType(expressionValueType);
 
   if (type == "boolean") {
-    AddParameter("yesorno", _("New value"));
+    AddParameter(
+        "yesorno",
+        options.description.empty() ? _("New value") : options.description);
     size_t valueParamIndex = parameters.size() - 1;
 
     if (isObjectInstruction || isBehaviorInstruction) {
@@ -122,7 +124,9 @@ InstructionMetadata& InstructionMetadata::UseStandardOperatorParameters(
     }
   } else {
     AddParameter("operator", _("Modification's sign"), expressionValueType);
-    AddParameter(type, _("Value"), typeExtraInfo);
+    AddParameter(type,
+                 options.description.empty() ? _("Value") : options.description,
+                 options.typeExtraInfo);
 
     size_t operatorParamIndex = parameters.size() - 2;
     size_t valueParamIndex = parameters.size() - 1;
@@ -155,7 +159,7 @@ InstructionMetadata& InstructionMetadata::UseStandardOperatorParameters(
 
 InstructionMetadata&
 InstructionMetadata::UseStandardRelationalOperatorParameters(
-    const gd::String& type, const gd::String& typeExtraInfo) {
+    const gd::String& type, const ParameterOptions &options) {
   const gd::String& expressionValueType =
       gd::ValueTypeMetadata::GetPrimitiveValueType(type);
   SetManipulatedType(expressionValueType);
@@ -175,7 +179,9 @@ InstructionMetadata::UseStandardRelationalOperatorParameters(
     }
   } else {
     AddParameter("relationalOperator", _("Sign of the test"), expressionValueType);
-    AddParameter(type, _("Value to compare"), typeExtraInfo);
+    AddParameter(type,
+                 options.description.empty() ? _("Value to compare") : options.description,
+                 options.typeExtraInfo);
     size_t operatorParamIndex = parameters.size() - 2;
     size_t valueParamIndex = parameters.size() - 1;
 

Core/GDCore/Extensions/Metadata/InstructionMetadata.h

@@ -14,6 +14,8 @@
 #include "GDCore/Events/Instruction.h"
 #include "GDCore/String.h"
 #include "ParameterMetadata.h"
+#include "ParameterOptions.h"
+
 namespace gd {
 class Project;
 class Layout;
@@ -109,8 +111,8 @@ class GD_CORE_API InstructionMetadata {
   }
 
   /**
-   * Check if the instruction asynchronicity is optional. If it is, it can either
-   * be used synchronously or asynchronously, with one function for each.
+   * Check if the instruction asynchronicity is optional. If it is, it can
+   * either be used synchronously or asynchronously, with one function for each.
    */
   bool IsOptionallyAsync() const {
     return IsAsync() && !codeExtraInformation.functionCallName.empty();
@@ -223,21 +225,22 @@ class GD_CORE_API InstructionMetadata {
   /**
    * \brief Add the default parameters for an instruction manipulating the
    * specified type ("string", "number") with the default operators.
-   * 
+   *
    * \note The type "string" can be declined in several subtypes.
    * \see ParameterMetadata
    */
-  InstructionMetadata &UseStandardOperatorParameters(const gd::String &type, const gd::String& typeExtraInfo = "");
+  InstructionMetadata &UseStandardOperatorParameters(
+      const gd::String &type, const ParameterOptions &options);
 
   /**
    * \brief Add the default parameters for an instruction comparing the
    * specified type ("string", "number") with the default relational operators.
-   * 
+   *
    * \note The type "string" can be declined in several subtypes.
    * \see ParameterMetadata
    */
   InstructionMetadata &UseStandardRelationalOperatorParameters(
-      const gd::String &type, const gd::String& typeExtraInfo = "");
+      const gd::String &type, const ParameterOptions &options);
 
   /**
    * \brief Mark the instruction as an object instruction. Automatically called
@@ -334,11 +337,12 @@ class GD_CORE_API InstructionMetadata {
     }
 
     /**
-     * Set the name of the function, doing asynchronous work, which will be called in
-     * the generated code. This function should return an asynchronous task
-     * (i.e: `gdjs.AsyncTask` in the JavaScript runtime).
+     * Set the name of the function, doing asynchronous work, which will be
+     * called in the generated code. This function should return an asynchronous
+     * task (i.e: `gdjs.AsyncTask` in the JavaScript runtime).
      *
-     * \param functionName the name of the function doing asynchronous work to call.
+     * \param functionName the name of the function doing asynchronous work to
+     * call.
      */
     ExtraInformation &SetAsyncFunctionName(const gd::String &functionName_) {
       asyncFunctionCallName = functionName_;
@@ -482,12 +486,12 @@ class GD_CORE_API InstructionMetadata {
   }
 
   /**
-   * Set the name of the function, doing asynchronous work, which will be called in
-   * the generated code. This function should return an asynchronous task
+   * Set the name of the function, doing asynchronous work, which will be called
+   * in the generated code. This function should return an asynchronous task
    * (i.e: `gdjs.AsyncTask` in the JavaScript runtime).
    *
-   * \param functionName the name of the function doing asynchronous work to call.
-   * \note Shortcut for `codeExtraInformation.SetAsyncFunctionName`.
+   * \param functionName the name of the function doing asynchronous work to
+   * call. \note Shortcut for `codeExtraInformation.SetAsyncFunctionName`.
    */
   ExtraInformation &SetAsyncFunctionName(const gd::String &functionName) {
     return codeExtraInformation.SetAsyncFunctionName(functionName);
@@ -512,7 +516,7 @@ class GD_CORE_API InstructionMetadata {
   /**
    * \brief Get the files that must be included to use the instruction.
    */
-  const std::vector<gd::String>& GetIncludeFiles() const {
+  const std::vector<gd::String> &GetIncludeFiles() const {
     return codeExtraInformation.GetIncludeFiles();
   };
 

Core/GDCore/Extensions/Metadata/MultipleInstructionMetadata.h

@@ -8,6 +8,8 @@
 #include "GDCore/Extensions/Metadata/ExpressionMetadata.h"
 #include "GDCore/Extensions/Metadata/InstructionMetadata.h"
 #include "GDCore/String.h"
+#include "ParameterOptions.h"
+
 namespace gd {}  // namespace gd
 
 namespace gd {
@@ -32,8 +34,7 @@ class GD_CORE_API MultipleInstructionMetadata {
     return MultipleInstructionMetadata(expression, condition, action);
   }
   static MultipleInstructionMetadata WithConditionAndAction(
-      gd::InstructionMetadata &condition,
-      gd::InstructionMetadata &action) {
+      gd::InstructionMetadata &condition, gd::InstructionMetadata &action) {
     return MultipleInstructionMetadata(condition, action);
   }
 
@@ -83,7 +84,8 @@ class GD_CORE_API MultipleInstructionMetadata {
   /**
    * \see gd::InstructionMetadata::SetParameterExtraInfo
    */
-  MultipleInstructionMetadata &SetParameterExtraInfo(const gd::String &defaultValue) {
+  MultipleInstructionMetadata &SetParameterExtraInfo(
+      const gd::String &defaultValue) {
     if (expression) expression->SetParameterExtraInfo(defaultValue);
     if (condition) condition->SetParameterExtraInfo(defaultValue);
     if (action) action->SetParameterExtraInfo(defaultValue);
@@ -126,9 +128,11 @@ class GD_CORE_API MultipleInstructionMetadata {
    * \see gd::InstructionMetadata::UseStandardOperatorParameters
    * \see gd::InstructionMetadata::UseStandardRelationalOperatorParameters
    */
-  MultipleInstructionMetadata &UseStandardParameters(const gd::String &type, const gd::String& typeExtraInfo = "") {
-    if (condition) condition->UseStandardRelationalOperatorParameters(type, typeExtraInfo);
-    if (action) action->UseStandardOperatorParameters(type, typeExtraInfo);
+  MultipleInstructionMetadata &UseStandardParameters(
+      const gd::String &type, const ParameterOptions &options) {
+    if (condition)
+      condition->UseStandardRelationalOperatorParameters(type, options);
+    if (action) action->UseStandardOperatorParameters(type, options);
     return *this;
   }
 
@@ -167,28 +171,23 @@ class GD_CORE_API MultipleInstructionMetadata {
   /**
    * \brief Get the files that must be included to use the instruction.
    */
-  const std::vector<gd::String>& GetIncludeFiles() const {
+  const std::vector<gd::String> &GetIncludeFiles() const {
     if (expression)
       return expression->GetCodeExtraInformation().GetIncludeFiles();
     if (condition)
       return condition->GetCodeExtraInformation().GetIncludeFiles();
-    if (action)
-      return action->GetCodeExtraInformation().GetIncludeFiles();
+    if (action) return action->GetCodeExtraInformation().GetIncludeFiles();
     // It can't actually happen.
     throw std::logic_error("no instruction metadata");
   }
 
   /**
-   * Set that the instruction is private - it can't be used outside of the
-   * object/ behavior that it is attached too.
+   * \see gd::InstructionMetadata::SetPrivate
    */
   MultipleInstructionMetadata &SetPrivate() {
-    if (expression)
-      expression->SetPrivate();
-    if (condition)
-      condition->SetPrivate();
-    if (action)
-      action->SetPrivate();
+    if (expression) expression->SetPrivate();
+    if (condition) condition->SetPrivate();
+    if (action) action->SetPrivate();
     return *this;
   }
 

Core/GDCore/Extensions/Metadata/ParameterOptions.h

@@ -0,0 +1,35 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+
+#ifndef PARAMETEROPTIONS_H
+#define PARAMETEROPTIONS_H
+#include "GDCore/String.h"
+#include "ParameterMetadata.h"
+
+namespace gd {}  // namespace gd
+
+namespace gd {
+struct GD_CORE_API ParameterOptions {
+  gd::String description;
+  gd::String typeExtraInfo;
+
+  ParameterOptions &SetDescription(const gd::String &description_) {
+    description = description_;
+    return *this;
+  }
+  ParameterOptions &SetTypeExtraInfo(const gd::String &typeExtraInfo_) {
+    typeExtraInfo = typeExtraInfo_;
+    return *this;
+  }
+
+  static ParameterOptions MakeNewOptions() {
+    ParameterOptions emptyOptions;
+    return emptyOptions;
+  }
+};
+}
+
+#endif  // PARAMETEROPTIONS_H

Core/GDCore/Extensions/Metadata/ValueTypeMetadata.cpp

@@ -46,4 +46,25 @@ const gd::String &ValueTypeMetadata::GetPrimitiveValueType(const gd::String &par
   return parameterType;
 }
 
+const gd::String ValueTypeMetadata::numberValueType = "number";
+const gd::String ValueTypeMetadata::booleanValueType = "boolean";
+const gd::String ValueTypeMetadata::colorValueType = "color";
+const gd::String ValueTypeMetadata::choiceValueType = "stringWithSelector";
+const gd::String ValueTypeMetadata::stringValueType = "string";
+
+const gd::String &ValueTypeMetadata::ConvertPropertyTypeToValueType(
+    const gd::String &propertyType) {
+  if (propertyType == "Number") {
+    return numberValueType;
+  } else if (propertyType == "Boolean") {
+    return booleanValueType;
+  } else if (propertyType == "Color") {
+    return colorValueType;
+  } else if (propertyType == "Choice") {
+    return choiceValueType;
+  }
+  // For "String" or default
+  return stringValueType;
+};
+
 }  // namespace gd

Core/GDCore/Extensions/Metadata/ValueTypeMetadata.h

@@ -192,6 +192,12 @@ class GD_CORE_API ValueTypeMetadata {
   static const gd::String numberType;
   static const gd::String stringType;
 
+  /**
+   * \brief Return the ValueTypeMetadata name for a property type.
+   * \see gd::PropertyDescriptor
+   */
+  static const gd::String &ConvertPropertyTypeToValueType(const gd::String &propertyType);
+
   /** \name Serialization
    */
   ///@{
@@ -212,6 +218,12 @@ class GD_CORE_API ValueTypeMetadata {
   bool optional;                        ///< True if the parameter is optional
   gd::String defaultValue;     ///< Used as a default value in editor or if an
                                ///< optional parameter is empty.
+
+  static const gd::String numberValueType;
+  static const gd::String booleanValueType;
+  static const gd::String colorValueType;
+  static const gd::String choiceValueType;
+  static const gd::String stringValueType;
 };
 
 }  // namespace gd

Core/GDCore/Extensions/PlatformExtension.cpp

@@ -24,14 +24,12 @@
 
 namespace gd {
 
-#if defined(GD_IDE_ONLY)
 std::map<gd::String, gd::InstructionMetadata>
     PlatformExtension::badConditionsMetadata;
 std::map<gd::String, gd::InstructionMetadata>
     PlatformExtension::badActionsMetadata;
 std::map<gd::String, gd::ExpressionMetadata>
     PlatformExtension::badExpressionsMetadata;
-#endif
 
 gd::InstructionMetadata& PlatformExtension::AddCondition(
     const gd::String& name,
@@ -41,7 +39,6 @@ gd::InstructionMetadata& PlatformExtension::AddCondition(
     const gd::String& group,
     const gd::String& icon,
     const gd::String& smallicon) {
-#if defined(GD_IDE_ONLY)
   gd::String nameWithNamespace = GetNameSpace() + name;
   conditionsInfos[nameWithNamespace] = InstructionMetadata(GetNameSpace(),
                                                            nameWithNamespace,
@@ -53,7 +50,6 @@ gd::InstructionMetadata& PlatformExtension::AddCondition(
                                                            smallicon)
                                            .SetHelpPath(GetHelpPath());
   return conditionsInfos[nameWithNamespace];
-#endif
 }
 
 gd::InstructionMetadata& PlatformExtension::AddAction(
@@ -64,7 +60,6 @@ gd::InstructionMetadata& PlatformExtension::AddAction(
     const gd::String& group,
     const gd::String& icon,
     const gd::String& smallicon) {
-#if defined(GD_IDE_ONLY)
   gd::String nameWithNamespace = GetNameSpace() + name;
   actionsInfos[nameWithNamespace] = InstructionMetadata(GetNameSpace(),
                                                         nameWithNamespace,
@@ -76,7 +71,6 @@ gd::InstructionMetadata& PlatformExtension::AddAction(
                                                         smallicon)
                                         .SetHelpPath(GetHelpPath());
   return actionsInfos[nameWithNamespace];
-#endif
 }
 
 gd::ExpressionMetadata& PlatformExtension::AddExpression(
@@ -85,7 +79,6 @@ gd::ExpressionMetadata& PlatformExtension::AddExpression(
     const gd::String& description,
     const gd::String& group,
     const gd::String& smallicon) {
-#if defined(GD_IDE_ONLY)
   gd::String nameWithNamespace = GetNameSpace() + name;
   expressionsInfos[nameWithNamespace] = ExpressionMetadata("number",
                                                            GetNameSpace(),
@@ -96,7 +89,6 @@ gd::ExpressionMetadata& PlatformExtension::AddExpression(
                                                            smallicon)
                                             .SetHelpPath(GetHelpPath());
   return expressionsInfos[nameWithNamespace];
-#endif
 }
 
 gd::ExpressionMetadata& PlatformExtension::AddStrExpression(
@@ -105,7 +97,6 @@ gd::ExpressionMetadata& PlatformExtension::AddStrExpression(
     const gd::String& description,
     const gd::String& group,
     const gd::String& smallicon) {
-#if defined(GD_IDE_ONLY)
   gd::String nameWithNamespace = GetNameSpace() + name;
   strExpressionsInfos[nameWithNamespace] = ExpressionMetadata("string",
                                                               GetNameSpace(),
@@ -116,7 +107,6 @@ gd::ExpressionMetadata& PlatformExtension::AddStrExpression(
                                                               smallicon)
                                                .SetHelpPath(GetHelpPath());
   return strExpressionsInfos[nameWithNamespace];
-#endif
 }
 
 gd::MultipleInstructionMetadata PlatformExtension::AddExpressionAndCondition(
@@ -220,12 +210,10 @@ PlatformExtension::AddExpressionAndConditionAndAction(
       expression, condition, action);
 }
 
-#if defined(GD_IDE_ONLY)
 gd::DependencyMetadata& PlatformExtension::AddDependency() {
   extensionDependenciesMetadata.push_back(DependencyMetadata());
   return extensionDependenciesMetadata.back();
 }
-#endif
 
 gd::ObjectMetadata& PlatformExtension::AddObject(
     const gd::String& name,
@@ -317,7 +305,6 @@ gd::EventMetadata& PlatformExtension::AddEvent(
     const gd::String& group_,
     const gd::String& smallicon_,
     std::shared_ptr<gd::BaseEvent> instance_) {
-#if defined(GD_IDE_ONLY)
   gd::String nameWithNamespace = GetNameSpace() + name_;
   eventsInfos[nameWithNamespace] = gd::EventMetadata(nameWithNamespace,
                                                      fullname_,
@@ -326,7 +313,6 @@ gd::EventMetadata& PlatformExtension::AddEvent(
                                                      smallicon_,
                                                      instance_);
   return eventsInfos[nameWithNamespace];
-#endif
 }
 
 PlatformExtension& PlatformExtension::SetExtensionInformation(
@@ -406,8 +392,6 @@ std::vector<gd::String> PlatformExtension::GetBehaviorsTypes() const {
   return behaviors;
 }
 
-#if defined(GD_IDE_ONLY)
-
 gd::InstructionMetadata& PlatformExtension::AddDuplicatedAction(
     const gd::String& newActionName, const gd::String& copiedActionName) {
   gd::String newNameWithNamespace = GetNameSpace() + newActionName;
@@ -586,7 +570,6 @@ gd::BaseEventSPtr PlatformExtension::CreateEvent(
 
   return std::shared_ptr<gd::BaseEvent>();
 }
-#endif
 
 CreateFunPtr PlatformExtension::GetObjectCreationFunctionPtr(
     const gd::String& objectType) const {
@@ -665,7 +648,6 @@ bool PlatformExtension::IsBuiltin() const {
          builtinExtensions.end();
 }
 
-#if defined(GD_IDE_ONLY)
 void PlatformExtension::StripUnimplementedInstructionsAndExpressions() {
   for (std::map<gd::String, gd::InstructionMetadata>::iterator it =
            GetAllActions().begin();
@@ -810,7 +792,40 @@ void PlatformExtension::StripUnimplementedInstructionsAndExpressions() {
       ++it;
   }
 }
-#endif
+
+gd::String
+PlatformExtension::GetEventsFunctionFullType(const gd::String &extensionName,
+                                             const gd::String &functionName) {
+  const auto &separator = GetNamespaceSeparator();
+  return extensionName + separator + functionName;
+}
+
+gd::String PlatformExtension::GetBehaviorEventsFunctionFullType(
+    const gd::String &extensionName, const gd::String &behaviorName,
+    const gd::String &functionName) {
+  const auto &separator = GetNamespaceSeparator();
+  return extensionName + separator + behaviorName + separator + functionName;
+}
+
+gd::String
+PlatformExtension::GetBehaviorFullType(const gd::String &extensionName,
+                                       const gd::String &behaviorName) {
+  const auto &separator = GetNamespaceSeparator();
+  return extensionName + separator + behaviorName;
+}
+
+gd::String PlatformExtension::GetObjectEventsFunctionFullType(
+    const gd::String &extensionName, const gd::String &objectName,
+    const gd::String &functionName) {
+  const auto &separator = GetNamespaceSeparator();
+  return extensionName + separator + objectName + separator + functionName;
+}
+
+gd::String PlatformExtension::GetObjectFullType(const gd::String &extensionName,
+                                                const gd::String &objectName) {
+  const auto &separator = GetNamespaceSeparator();
+  return extensionName + separator + objectName;
+}
 
 PlatformExtension::PlatformExtension()
     : deprecated(false), category(_("General")) {}

Core/GDCore/Extensions/PlatformExtension.h

@@ -620,7 +620,26 @@ class GD_CORE_API PlatformExtension {
    */
   static gd::String GetNamespaceSeparator() { return "::"; }
 
- private:
+  static gd::String GetEventsFunctionFullType(const gd::String &extensionName,
+                                              const gd::String &functionName);
+
+  static gd::String
+  GetBehaviorEventsFunctionFullType(const gd::String &extensionName,
+                                    const gd::String &behaviorName,
+                                    const gd::String &functionName);
+
+  static gd::String GetBehaviorFullType(const gd::String &extensionName,
+                                        const gd::String &behaviorName);
+
+  static gd::String
+  GetObjectEventsFunctionFullType(const gd::String &extensionName,
+                                  const gd::String &objectName,
+                                  const gd::String &functionName);
+
+  static gd::String GetObjectFullType(const gd::String &extensionName,
+                                      const gd::String &objectName);
+
+private:
   /**
    * Set the namespace (the string all actions/conditions/expressions start
    * with).

Core/GDCore/IDE/Dialogs/LayoutEditorCanvas/EditorSettings.h

@@ -3,7 +3,6 @@
  * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
  * reserved. This project is released under the MIT License.
  */
-#if defined(GD_IDE_ONLY)
 #ifndef SCENECANVASSETTINGS_H
 #define SCENECANVASSETTINGS_H
 #include "GDCore/String.h"
@@ -43,4 +42,3 @@ private:
 }  // namespace gd
 
 #endif  // SCENECANVASSETTINGS_H
-#endif

Core/GDCore/IDE/Events/EventsRefactorer.cpp

@@ -773,15 +773,18 @@ vector<EventsSearchResult> EventsRefactorer::SearchInEvents(
   const gd::String& ignored_characters =
       EventsRefactorer::searchIgnoredCharacters;
 
-  search.replace_if(
-      search.begin(),
-      search.end(),
-      [ignored_characters](const char& c) {
-        return ignored_characters.find(c) != gd::String::npos;
-      },
-      "");
-  search = search.LeftTrim().RightTrim();
-  search.RemoveConsecutiveOccurrences(search.begin(), search.end(), ' ');
+  if (inEventSentences) {
+    // Remove ignored characters only when searching in event sentences.
+    search.replace_if(
+        search.begin(),
+        search.end(),
+        [ignored_characters](const char& c) {
+          return ignored_characters.find(c) != gd::String::npos;
+        },
+        "");
+    search = search.LeftTrim().RightTrim();
+    search.RemoveConsecutiveOccurrences(search.begin(), search.end(), ' ');
+  }
 
   for (std::size_t i = 0; i < events.size(); ++i) {
     bool eventAddedInResults = false;

Core/GDCore/IDE/PropertyFunctionGenerator.cpp

@@ -0,0 +1,301 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2022 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "PropertyFunctionGenerator.h"
+
+#include "GDCore/Events/Builtin/StandardEvent.h"
+#include "GDCore/Events/Event.h"
+#include "GDCore/Extensions/Metadata/ValueTypeMetadata.h"
+#include "GDCore/Extensions/PlatformExtension.h"
+#include "GDCore/Project/EventsBasedBehavior.h"
+#include "GDCore/Project/EventsBasedObject.h"
+#include "GDCore/Project/EventsFunctionsExtension.h"
+#include "GDCore/Project/Project.h"
+#include "GDCore/Project/PropertyDescriptor.h"
+#include "GDCore/String.h"
+
+namespace gd {
+
+void PropertyFunctionGenerator::GenerateBehaviorGetterAndSetter(
+    gd::Project &project, gd::EventsFunctionsExtension &extension,
+    gd::EventsBasedBehavior &eventsBasedBehavior,
+    const gd::NamedPropertyDescriptor &property, bool isSharedProperties) {
+  GenerateGetterAndSetter(project, extension, eventsBasedBehavior, property,
+                          eventsBasedBehavior.GetObjectType(), true,
+                          isSharedProperties);
+}
+
+void PropertyFunctionGenerator::GenerateObjectGetterAndSetter(
+    gd::Project &project, gd::EventsFunctionsExtension &extension,
+    gd::EventsBasedObject &eventsBasedObject,
+    const gd::NamedPropertyDescriptor &property) {
+  GenerateGetterAndSetter(project, extension, eventsBasedObject, property, "",
+                          false, false);
+}
+
+void PropertyFunctionGenerator::GenerateGetterAndSetter(
+    gd::Project &project, gd::EventsFunctionsExtension &extension,
+    gd::AbstractEventsBasedEntity &eventsBasedEntity,
+    const gd::NamedPropertyDescriptor &property, const gd::String &objectType,
+    bool isBehavior, bool isSharedProperties) {
+  auto &propertyName = property.GetName();
+  auto &functionsContainer = eventsBasedEntity.GetEventsFunctions();
+  gd::String capitalizedName = CapitalizeFirstLetter(property.GetName());
+  gd::String setterName = "Set" + capitalizedName;
+
+  gd::String functionGroupName =
+      (eventsBasedEntity.GetFullName().empty()
+           ? eventsBasedEntity.GetName()
+           : eventsBasedEntity.GetFullName()) +
+      (property.GetGroup().empty()
+           ? ""
+           : " " + UnCapitalizeFirstLetter(property.GetGroup())) +
+      " configuration";
+
+  gd::String propertyLabel =
+      property.GetLabel().empty() ? property.GetName() : property.GetLabel();
+
+  gd::String descriptionSubject =
+      (property.GetType() == "Boolean" ? "if " : "the ") +
+      UnCapitalizeFirstLetter(propertyLabel) +
+      (isSharedProperties || property.GetType() == "Boolean"
+           ? "."
+           : " of the object.") +
+      (property.GetDescription().empty() ? ""
+                                         : " " + property.GetDescription()) +
+      (isSharedProperties
+           ? " While an object is needed, this will apply to all "
+             "objects using the behavior."
+           : "");
+
+  gd::String propertyGetterName =
+      (isSharedProperties ? "SharedProperty" : "Property") + property.GetName();
+  gd::String getterType =
+      gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+          extension.GetName(), eventsBasedEntity.GetName(), propertyGetterName);
+  gd::String setterType =
+      gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+          extension.GetName(), eventsBasedEntity.GetName(),
+          "Set" + propertyGetterName);
+
+  gd::String getterName = capitalizedName;
+  gd::String numberOrString =
+      property.GetType() == "Number" ? "Number" : "String";
+
+  if (!functionsContainer.HasEventsFunctionNamed(getterName)) {
+    auto &getter = functionsContainer.InsertNewEventsFunction(
+        getterName, functionsContainer.GetEventsFunctionsCount());
+    auto &expressionType =
+        gd::ValueTypeMetadata::ConvertPropertyTypeToValueType(
+            property.GetType());
+    // TODO Stop replacing number by expression when it"s handled by the UI
+    // and released.
+    auto &legacyExpressionType =
+        expressionType == "number" ? "expression" : expressionType;
+    getter.GetExpressionType()
+        .SetName(legacyExpressionType)
+        .SetExtraInfo(GetStringifiedExtraInfo(property));
+    getter.SetFullName(propertyLabel).SetGroup(functionGroupName);
+    if (property.GetType() == "Boolean") {
+      getter.SetFunctionType(gd::EventsFunction::Condition)
+          .SetDescription("Check " + descriptionSubject)
+          .SetSentence("_PARAM0_ " + UnCapitalizeFirstLetter(propertyLabel));
+    } else {
+      getter.SetFunctionType(gd::EventsFunction::ExpressionAndCondition)
+          .SetDescription(descriptionSubject)
+          .SetSentence("the " + UnCapitalizeFirstLetter(propertyLabel));
+    }
+
+    auto &event =
+        dynamic_cast<gd::StandardEvent &>(getter.GetEvents().InsertNewEvent(
+            project, "BuiltinCommonInstructions::Standard", 0));
+    if (property.GetType() == "Boolean") {
+      gd::Instruction condition;
+      condition.SetType(getterType);
+      condition.AddParameter("Object");
+      if (isBehavior) {
+        condition.AddParameter("Behavior");
+      }
+      event.GetConditions().Insert(condition, 0);
+
+      gd::Instruction action;
+      action.SetType("SetReturnBoolean");
+      action.AddParameter("True");
+      event.GetActions().Insert(action, 0);
+    } else {
+      gd::Instruction action;
+      action.SetType("SetReturn" + numberOrString);
+      gd::String receiver = isBehavior ? "Object.Behavior::" : "Object.";
+      gd::String propertyPrefix =
+          (isSharedProperties ? "SharedProperty" : "Property");
+      action.AddParameter(receiver + propertyPrefix + property.GetName() +
+                          "()");
+      event.GetActions().Insert(action, 0);
+    }
+  }
+
+  if (!functionsContainer.HasEventsFunctionNamed(setterName)) {
+    auto &setter = functionsContainer.InsertNewEventsFunction(
+        setterName, functionsContainer.GetEventsFunctionsCount());
+    if (property.GetType() == "Boolean") {
+      setter.SetFunctionType(gd::EventsFunction::Action)
+          .SetFullName(propertyLabel)
+          .SetGroup(functionGroupName)
+          .SetDescription("Change " + descriptionSubject)
+          .SetSentence("_PARAM0_ " + UnCapitalizeFirstLetter(propertyLabel) +
+                       (isBehavior ? ": _PARAM2_" : ": _PARAM1_"));
+      gd::ParameterMetadata objectParameter;
+      objectParameter.SetType("object")
+          .SetName("Object")
+          .SetDescription("Object")
+          .SetExtraInfo(objectType);
+      if (!isBehavior) {
+        gd::String objectFullType = gd::PlatformExtension::GetObjectFullType(
+            extension.GetName(), eventsBasedEntity.GetName());
+        objectParameter.SetExtraInfo(objectFullType);
+      }
+      setter.GetParameters().push_back(objectParameter);
+      if (isBehavior) {
+        gd::ParameterMetadata behaviorParameter;
+        gd::String behaviorFullType =
+            gd::PlatformExtension::GetBehaviorFullType(
+                extension.GetName(), eventsBasedEntity.GetName());
+        behaviorParameter.SetType("behavior")
+            .SetName("Behavior")
+            .SetDescription("Behavior")
+            .SetExtraInfo(behaviorFullType);
+        setter.GetParameters().push_back(behaviorParameter);
+      }
+      gd::ParameterMetadata valueParameter;
+      valueParameter.SetType("yesorno")
+          .SetName("Value")
+          .SetDescription(capitalizedName)
+          .SetOptional(true)
+          .SetDefaultValue("yes");
+      setter.GetParameters().push_back(valueParameter);
+    } else {
+      setter.SetFunctionType(gd::EventsFunction::ActionWithOperator);
+      setter.SetGetterName(getterName);
+    }
+
+    if (property.GetType() == "Boolean") {
+      {
+        auto &event =
+            dynamic_cast<gd::StandardEvent &>(setter.GetEvents().InsertNewEvent(
+                project, "BuiltinCommonInstructions::Standard", 0));
+
+        gd::Instruction condition;
+        condition.SetType("GetArgumentAsBoolean");
+        condition.AddParameter("\"Value\"");
+        event.GetConditions().Insert(condition, 0);
+
+        gd::Instruction action;
+        action.SetType(setterType);
+        action.AddParameter("Object");
+        if (isBehavior) {
+          action.AddParameter("Behavior");
+          action.AddParameter("yes");
+        } else {
+          action.AddParameter("yes");
+        }
+        event.GetActions().Insert(action, 0);
+      }
+      {
+        auto &event =
+            dynamic_cast<gd::StandardEvent &>(setter.GetEvents().InsertNewEvent(
+                project, "BuiltinCommonInstructions::Standard", 0));
+
+        gd::Instruction condition;
+        condition.SetType("GetArgumentAsBoolean");
+        condition.AddParameter("\"Value\"");
+        condition.SetInverted(true);
+        event.GetConditions().Insert(condition, 0);
+
+        gd::Instruction action;
+        action.SetType(setterType);
+        action.AddParameter("Object");
+        if (isBehavior) {
+          action.AddParameter("Behavior");
+          action.AddParameter("no");
+        } else {
+          action.AddParameter("no");
+        }
+        event.GetActions().Insert(action, 0);
+      }
+    } else {
+      auto &event =
+          dynamic_cast<gd::StandardEvent &>(setter.GetEvents().InsertNewEvent(
+              project, "BuiltinCommonInstructions::Standard", 0));
+
+      gd::Instruction action;
+      action.SetType(setterType);
+      action.AddParameter("Object");
+      gd::String parameterGetterCall =
+          "GetArgumentAs" + numberOrString + "(\"Value\")";
+      if (isBehavior) {
+        action.AddParameter("Behavior");
+        action.AddParameter("=");
+        action.AddParameter(parameterGetterCall);
+      } else {
+        action.AddParameter("=");
+        action.AddParameter(parameterGetterCall);
+      }
+      event.GetActions().Insert(action, 0);
+    }
+  }
+}
+
+bool PropertyFunctionGenerator::CanGenerateGetterAndSetter(
+    const gd::AbstractEventsBasedEntity &eventsBasedEntity,
+    const gd::NamedPropertyDescriptor &property) {
+  auto &type = property.GetType();
+  if (type != "Boolean" && type != "Number" && type != "String" &&
+      type != "Choice" && type != "Color") {
+    return false;
+  }
+
+  auto &functionsContainer = eventsBasedEntity.GetEventsFunctions();
+  auto getterName = CapitalizeFirstLetter(property.GetName());
+  auto setterName = "Set" + getterName;
+  return !functionsContainer.HasEventsFunctionNamed(setterName) &&
+         !functionsContainer.HasEventsFunctionNamed(getterName);
+};
+
+gd::String PropertyFunctionGenerator::GetStringifiedExtraInfo(
+    const gd::PropertyDescriptor &property) {
+  if (property.GetType() == "Choice") {
+    gd::String arrayString;
+    arrayString += "[";
+    bool isFirst = true;
+    for (const gd::String &choice : property.GetExtraInfo()) {
+      if (!isFirst) {
+        arrayString += ",";
+      }
+      isFirst = false;
+      arrayString += "\"" + choice + "\"";
+    }
+    arrayString += "]";
+    return arrayString;
+  }
+  return "";
+}
+
+gd::String
+PropertyFunctionGenerator::CapitalizeFirstLetter(const gd::String &string) {
+  if (string.empty()) {
+    return string;
+  }
+  return string.substr(0, 1).UpperCase() + string.substr(1);
+}
+
+gd::String
+PropertyFunctionGenerator::UnCapitalizeFirstLetter(const gd::String &string) {
+  if (string.empty()) {
+    return string;
+  }
+  return string.substr(0, 1).LowerCase() + string.substr(1);
+}
+
+} // namespace gd

Core/GDCore/IDE/PropertyFunctionGenerator.h

@@ -0,0 +1,65 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2022 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#ifndef GDCORE_PROPERTYFUNCTIONGENERATOR_H
+#define GDCORE_PROPERTYFUNCTIONGENERATOR_H
+
+namespace gd {
+class String;
+class Project;
+class EventsFunctionsExtension;
+class EventsBasedBehavior;
+class EventsBasedObject;
+class AbstractEventsBasedEntity;
+class PropertyDescriptor;
+class NamedPropertyDescriptor;
+} // namespace gd
+
+namespace gd {
+
+/**
+ * \brief Generate a getter and a setter functions for properties.
+ */
+class GD_CORE_API PropertyFunctionGenerator {
+public:
+  /**
+   * \brief Generate a getter and a setter for the given behavior property.
+   */
+  static void GenerateBehaviorGetterAndSetter(
+      gd::Project &project, gd::EventsFunctionsExtension &extension,
+      gd::EventsBasedBehavior &eventsBasedBehavior,
+      const gd::NamedPropertyDescriptor &property, bool isSharedProperties);
+  /**
+   * \brief Generate a getter and a setter for the given object property.
+   */
+  static void
+  GenerateObjectGetterAndSetter(gd::Project &project,
+                                gd::EventsFunctionsExtension &extension,
+                                gd::EventsBasedObject &eventsBasedObject,
+                                const gd::NamedPropertyDescriptor &property);
+  static bool CanGenerateGetterAndSetter(
+      const gd::AbstractEventsBasedEntity &eventsBasedEntity,
+      const gd::NamedPropertyDescriptor &property);
+
+  ~PropertyFunctionGenerator();
+
+private:
+  static void GenerateGetterAndSetter(
+      gd::Project &project, gd::EventsFunctionsExtension &extension,
+      gd::AbstractEventsBasedEntity &eventsBasedEntity,
+      const gd::NamedPropertyDescriptor &property, const gd::String &objectType,
+      bool isBehavior, bool isSharedProperties);
+
+  static gd::String CapitalizeFirstLetter(const gd::String &string);
+  static gd::String UnCapitalizeFirstLetter(const gd::String &string);
+  static gd::String
+  GetStringifiedExtraInfo(const gd::PropertyDescriptor &property);
+
+  PropertyFunctionGenerator();
+};
+
+} // namespace gd
+
+#endif // GDCORE_PROPERTYFUNCTIONGENERATOR_H

Core/GDCore/IDE/WholeProjectRefactorer.cpp

@@ -35,40 +35,6 @@
 #include "GDCore/String.h"
 #include "GDCore/Tools/Log.h"
 
-namespace {
-// These functions are doing the reverse of what is done when adding
-// instructions/expression to extension/behaviors. If needed, they could be
-// moved to gd::PlatformExtension to colocate the usage of the namespace
-// separator?
-gd::String GetEventsFunctionFullType(const gd::String& extensionName,
-                                     const gd::String& functionName) {
-  const auto& separator = gd::PlatformExtension::GetNamespaceSeparator();
-  return extensionName + separator + functionName;
-}
-gd::String GetBehaviorEventsFunctionFullType(const gd::String& extensionName,
-                                             const gd::String& behaviorName,
-                                             const gd::String& functionName) {
-  const auto& separator = gd::PlatformExtension::GetNamespaceSeparator();
-  return extensionName + separator + behaviorName + separator + functionName;
-}
-gd::String GetBehaviorFullType(const gd::String& extensionName,
-                               const gd::String& behaviorName) {
-  const auto& separator = gd::PlatformExtension::GetNamespaceSeparator();
-  return extensionName + separator + behaviorName;
-}
-gd::String GetObjectEventsFunctionFullType(const gd::String& extensionName,
-                                             const gd::String& objectName,
-                                             const gd::String& functionName) {
-  const auto& separator = gd::PlatformExtension::GetNamespaceSeparator();
-  return extensionName + separator + objectName + separator + functionName;
-}
-gd::String GetObjectFullType(const gd::String& extensionName,
-                               const gd::String& objectName) {
-  const auto& separator = gd::PlatformExtension::GetNamespaceSeparator();
-  return extensionName + separator + objectName;
-}
-}  // namespace
-
 namespace gd {
 
 // By convention, the first parameter of an events based behavior method is
@@ -252,7 +218,7 @@ WholeProjectRefactorer::GetAllObjectTypesUsingEventsBasedBehavior(
     const gd::EventsFunctionsExtension& eventsFunctionsExtension,
     const gd::EventsBasedBehavior& eventsBasedBehavior) {
   std::set<gd::String> allTypes;
-  const gd::String behaviorType = GetBehaviorFullType(
+  const gd::String behaviorType = gd::PlatformExtension::GetBehaviorFullType(
       eventsFunctionsExtension.GetName(), eventsBasedBehavior.GetName());
 
   auto addTypesOfObjectsIn =
@@ -295,7 +261,7 @@ void WholeProjectRefactorer::EnsureBehaviorEventsFunctionsProperParameters(
         .SetType("behavior")
         .SetName("Behavior")
         .SetDescription("Behavior")
-        .SetExtraInfo(GetBehaviorFullType(eventsFunctionsExtension.GetName(),
+        .SetExtraInfo(gd::PlatformExtension::GetBehaviorFullType(eventsFunctionsExtension.GetName(),
                                           eventsBasedBehavior.GetName()));
   }
 }
@@ -315,7 +281,7 @@ void WholeProjectRefactorer::EnsureObjectEventsFunctionsProperParameters(
         .SetType("object")
         .SetName(parentObjectParameterName)
         .SetDescription("Object")
-        .SetExtraInfo(GetObjectFullType(eventsFunctionsExtension.GetName(),
+        .SetExtraInfo(gd::PlatformExtension::GetObjectFullType(eventsFunctionsExtension.GetName(),
                                         eventsBasedObject.GetName()));
   }
 }
@@ -330,8 +296,8 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
         DoRenameEventsFunction(
             project,
             eventsFunction,
-            GetEventsFunctionFullType(oldName, eventsFunction.GetName()),
-            GetEventsFunctionFullType(newName, eventsFunction.GetName()));
+            gd::PlatformExtension::GetEventsFunctionFullType(oldName, eventsFunction.GetName()),
+            gd::PlatformExtension::GetEventsFunctionFullType(newName, eventsFunction.GetName()));
       };
 
   auto renameBehaviorEventsFunction =
@@ -344,10 +310,10 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
         if (eventsFunction.IsAction() || eventsFunction.IsCondition()) {
           gd::InstructionsTypeRenamer renamer = gd::InstructionsTypeRenamer(
               project,
-              GetBehaviorEventsFunctionFullType(oldName,
+              gd::PlatformExtension::GetBehaviorEventsFunctionFullType(oldName,
                                                 eventsBasedBehavior.GetName(),
                                                 eventsFunction.GetName()),
-              GetBehaviorEventsFunctionFullType(newName,
+              gd::PlatformExtension::GetBehaviorEventsFunctionFullType(newName,
                                                 eventsBasedBehavior.GetName(),
                                                 eventsFunction.GetName()));
           ExposeProjectEvents(project, renamer);
@@ -360,12 +326,12 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
           const gd::NamedPropertyDescriptor& property) {
         gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
             project,
-            GetBehaviorEventsFunctionFullType(
+            gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
                 oldName,
                 eventsBasedBehavior.GetName(),
                 gd::EventsBasedBehavior::GetPropertyActionName(
                     property.GetName())),
-            GetBehaviorEventsFunctionFullType(
+            gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
                 newName,
                 eventsBasedBehavior.GetName(),
                 gd::EventsBasedBehavior::GetPropertyActionName(
@@ -375,12 +341,12 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
         gd::InstructionsTypeRenamer conditionRenamer =
             gd::InstructionsTypeRenamer(
                 project,
-                GetBehaviorEventsFunctionFullType(
+                gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
                     oldName,
                     eventsBasedBehavior.GetName(),
                     gd::EventsBasedBehavior::GetPropertyConditionName(
                         property.GetName())),
-                GetBehaviorEventsFunctionFullType(
+                gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
                     newName,
                     eventsBasedBehavior.GetName(),
                     gd::EventsBasedBehavior::GetPropertyConditionName(
@@ -391,6 +357,43 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
         // extension name
       };
 
+  auto renameBehaviorSharedPropertyFunctions =
+      [&project, &oldName, &newName](
+          const gd::EventsBasedBehavior& eventsBasedBehavior,
+          const gd::NamedPropertyDescriptor& property) {
+        gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
+            project,
+            gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+                oldName,
+                eventsBasedBehavior.GetName(),
+                gd::EventsBasedBehavior::GetSharedPropertyActionName(
+                    property.GetName())),
+            gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+                newName,
+                eventsBasedBehavior.GetName(),
+                gd::EventsBasedBehavior::GetSharedPropertyActionName(
+                    property.GetName())));
+        ExposeProjectEvents(project, actionRenamer);
+
+        gd::InstructionsTypeRenamer conditionRenamer =
+            gd::InstructionsTypeRenamer(
+                project,
+                gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+                    oldName,
+                    eventsBasedBehavior.GetName(),
+                    gd::EventsBasedBehavior::GetSharedPropertyConditionName(
+                        property.GetName())),
+                gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+                    newName,
+                    eventsBasedBehavior.GetName(),
+                    gd::EventsBasedBehavior::GetSharedPropertyConditionName(
+                        property.GetName())));
+        ExposeProjectEvents(project, conditionRenamer);
+
+        // Nothing to do for expressions, expressions are not including the
+        // extension name
+      };
+
   auto renameObjectEventsFunction =
       [&project, &oldName, &newName](
           const gd::EventsBasedObject& eventsBasedObject,
@@ -401,10 +404,10 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
         if (eventsFunction.IsAction() || eventsFunction.IsCondition()) {
           gd::InstructionsTypeRenamer renamer = gd::InstructionsTypeRenamer(
               project,
-              GetObjectEventsFunctionFullType(oldName,
+              gd::PlatformExtension::GetObjectEventsFunctionFullType(oldName,
                                                 eventsBasedObject.GetName(),
                                                 eventsFunction.GetName()),
-              GetObjectEventsFunctionFullType(newName,
+              gd::PlatformExtension::GetObjectEventsFunctionFullType(newName,
                                                 eventsBasedObject.GetName(),
                                                 eventsFunction.GetName()));
           ExposeProjectEvents(project, renamer);
@@ -417,12 +420,12 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
           const gd::NamedPropertyDescriptor& property) {
         gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
             project,
-            GetObjectEventsFunctionFullType(
+            gd::PlatformExtension::GetObjectEventsFunctionFullType(
                 oldName,
                 eventsBasedObject.GetName(),
                 gd::EventsBasedObject::GetPropertyActionName(
                     property.GetName())),
-            GetObjectEventsFunctionFullType(
+            gd::PlatformExtension::GetObjectEventsFunctionFullType(
                 newName,
                 eventsBasedObject.GetName(),
                 gd::EventsBasedObject::GetPropertyActionName(
@@ -432,12 +435,12 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
         gd::InstructionsTypeRenamer conditionRenamer =
             gd::InstructionsTypeRenamer(
                 project,
-                GetObjectEventsFunctionFullType(
+                gd::PlatformExtension::GetObjectEventsFunctionFullType(
                     oldName,
                     eventsBasedObject.GetName(),
                     gd::EventsBasedObject::GetPropertyConditionName(
                         property.GetName())),
-                GetObjectEventsFunctionFullType(
+                gd::PlatformExtension::GetObjectEventsFunctionFullType(
                     newName,
                     eventsBasedObject.GetName(),
                     gd::EventsBasedObject::GetPropertyConditionName(
@@ -488,13 +491,19 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
   }
 
   // Behavior properties
-  for (auto&& eventsBasedBehavior :
+  for (auto &&eventsBasedBehavior :
        eventsFunctionsExtension.GetEventsBasedBehaviors().GetInternalVector()) {
-    auto& behaviorProperties = eventsBasedBehavior->GetPropertyDescriptors();
-    for (auto&& propertyDescriptor : behaviorProperties.GetInternalVector()) {
+    for (auto &&propertyDescriptor :
+         eventsBasedBehavior->GetPropertyDescriptors().GetInternalVector()) {
       renameBehaviorPropertyFunctions(*eventsBasedBehavior,
                                       *propertyDescriptor);
     }
+    for (auto &&propertyDescriptor :
+         eventsBasedBehavior->GetSharedPropertyDescriptors()
+             .GetInternalVector()) {
+      renameBehaviorSharedPropertyFunctions(*eventsBasedBehavior,
+                                            *propertyDescriptor);
+    }
   }
 
   // Object instructions
@@ -523,8 +532,8 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
        eventsFunctionsExtension.GetEventsBasedBehaviors().GetInternalVector()) {
     DoRenameBehavior(
         project,
-        GetBehaviorFullType(oldName, eventsBasedBehavior->GetName()),
-        GetBehaviorFullType(newName, eventsBasedBehavior->GetName()));
+        gd::PlatformExtension::GetBehaviorFullType(oldName, eventsBasedBehavior->GetName()),
+        gd::PlatformExtension::GetBehaviorFullType(newName, eventsBasedBehavior->GetName()));
   }
 
   // Finally, rename custom objects type
@@ -532,8 +541,8 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
        eventsFunctionsExtension.GetEventsBasedObjects().GetInternalVector()) {
     DoRenameObject(
         project,
-        GetObjectFullType(oldName, eventsBasedObject->GetName()),
-        GetObjectFullType(newName, eventsBasedObject->GetName()));
+        gd::PlatformExtension::GetObjectFullType(oldName, eventsBasedObject->GetName()),
+        gd::PlatformExtension::GetObjectFullType(newName, eventsBasedObject->GetName()));
   }
 }
 
@@ -550,9 +559,9 @@ void WholeProjectRefactorer::RenameEventsFunction(
   DoRenameEventsFunction(
       project,
       eventsFunction,
-      GetEventsFunctionFullType(eventsFunctionsExtension.GetName(),
+      gd::PlatformExtension::GetEventsFunctionFullType(eventsFunctionsExtension.GetName(),
                                 oldFunctionName),
-      GetEventsFunctionFullType(eventsFunctionsExtension.GetName(),
+      gd::PlatformExtension::GetEventsFunctionFullType(eventsFunctionsExtension.GetName(),
                                 newFunctionName));
   
   if (eventsFunction.GetFunctionType() == gd::EventsFunction::ExpressionAndCondition) {
@@ -585,7 +594,7 @@ void WholeProjectRefactorer::RenameBehaviorEventsFunction(
     gd::ExpressionsRenamer renamer =
         gd::ExpressionsRenamer(project.GetCurrentPlatform());
     renamer.SetReplacedBehaviorExpression(
-        GetBehaviorFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetBehaviorFullType(eventsFunctionsExtension.GetName(),
                             eventsBasedBehavior.GetName()),
         oldFunctionName,
         newFunctionName);
@@ -594,10 +603,10 @@ void WholeProjectRefactorer::RenameBehaviorEventsFunction(
   if (eventsFunction.IsAction() || eventsFunction.IsCondition()) {
     gd::InstructionsTypeRenamer renamer = gd::InstructionsTypeRenamer(
         project,
-        GetBehaviorEventsFunctionFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(eventsFunctionsExtension.GetName(),
                                           eventsBasedBehavior.GetName(),
                                           oldFunctionName),
-        GetBehaviorEventsFunctionFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(eventsFunctionsExtension.GetName(),
                                           eventsBasedBehavior.GetName(),
                                           newFunctionName));
     ExposeProjectEvents(project, renamer);
@@ -629,7 +638,7 @@ void WholeProjectRefactorer::RenameObjectEventsFunction(
     gd::ExpressionsRenamer renamer =
         gd::ExpressionsRenamer(project.GetCurrentPlatform());
     renamer.SetReplacedObjectExpression(
-        GetObjectFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetObjectFullType(eventsFunctionsExtension.GetName(),
                             eventsBasedObject.GetName()),
         oldFunctionName,
         newFunctionName);
@@ -638,10 +647,10 @@ void WholeProjectRefactorer::RenameObjectEventsFunction(
   if (eventsFunction.IsAction() || eventsFunction.IsCondition()) {
     gd::InstructionsTypeRenamer renamer = gd::InstructionsTypeRenamer(
         project,
-        GetObjectEventsFunctionFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetObjectEventsFunctionFullType(eventsFunctionsExtension.GetName(),
                                           eventsBasedObject.GetName(),
                                           oldFunctionName),
-        GetObjectEventsFunctionFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetObjectEventsFunctionFullType(eventsFunctionsExtension.GetName(),
                                           eventsBasedObject.GetName(),
                                           newFunctionName));
     ExposeProjectEvents(project, renamer);
@@ -668,7 +677,7 @@ void WholeProjectRefactorer::MoveEventsFunctionParameter(
   const gd::EventsFunction& eventsFunction =
       eventsFunctionsExtension.GetEventsFunction(functionName);
 
-  const gd::String& eventsFunctionType = GetEventsFunctionFullType(
+  const gd::String& eventsFunctionType = gd::PlatformExtension::GetEventsFunctionFullType(
       eventsFunctionsExtension.GetName(), functionName);
 
   if (eventsFunction.IsExpression()) {
@@ -703,7 +712,7 @@ void WholeProjectRefactorer::MoveBehaviorEventsFunctionParameter(
       eventsFunctions.GetEventsFunction(functionName);
 
   const gd::String& eventsFunctionType =
-      GetBehaviorEventsFunctionFullType(eventsFunctionsExtension.GetName(),
+      gd::PlatformExtension::GetBehaviorEventsFunctionFullType(eventsFunctionsExtension.GetName(),
                                         eventsBasedBehavior.GetName(),
                                         functionName);
 
@@ -711,7 +720,7 @@ void WholeProjectRefactorer::MoveBehaviorEventsFunctionParameter(
     gd::ExpressionsParameterMover mover =
         gd::ExpressionsParameterMover(project.GetCurrentPlatform());
     mover.SetBehaviorExpressionMovedParameter(
-        GetBehaviorFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetBehaviorFullType(eventsFunctionsExtension.GetName(),
                             eventsBasedBehavior.GetName()),
         functionName,
         oldIndex,
@@ -743,7 +752,7 @@ void WholeProjectRefactorer::MoveObjectEventsFunctionParameter(
       eventsFunctions.GetEventsFunction(functionName);
 
   const gd::String& eventsFunctionType =
-      GetObjectEventsFunctionFullType(eventsFunctionsExtension.GetName(),
+      gd::PlatformExtension::GetObjectEventsFunctionFullType(eventsFunctionsExtension.GetName(),
                                         eventsBasedObject.GetName(),
                                         functionName);
 
@@ -751,7 +760,7 @@ void WholeProjectRefactorer::MoveObjectEventsFunctionParameter(
     gd::ExpressionsParameterMover mover =
         gd::ExpressionsParameterMover(project.GetCurrentPlatform());
     mover.SetObjectExpressionMovedParameter(
-        GetObjectFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetObjectFullType(eventsFunctionsExtension.GetName(),
                             eventsBasedObject.GetName()),
         functionName,
         oldIndex,
@@ -803,7 +812,7 @@ void WholeProjectRefactorer::RenameEventsBasedBehaviorProperty(
     gd::ExpressionsRenamer expressionRenamer =
         gd::ExpressionsRenamer(project.GetCurrentPlatform());
     expressionRenamer.SetReplacedBehaviorExpression(
-        GetBehaviorFullType(eventsFunctionsExtension.GetName(),
+        gd::PlatformExtension::GetBehaviorFullType(eventsFunctionsExtension.GetName(),
                             eventsBasedBehavior.GetName()),
         EventsBasedBehavior::GetPropertyExpressionName(oldPropertyName),
         EventsBasedBehavior::GetPropertyExpressionName(newPropertyName));
@@ -811,11 +820,11 @@ void WholeProjectRefactorer::RenameEventsBasedBehaviorProperty(
 
     gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
         project,
-        GetBehaviorEventsFunctionFullType(
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             eventsBasedBehavior.GetName(),
             EventsBasedBehavior::GetPropertyActionName(oldPropertyName)),
-        GetBehaviorEventsFunctionFullType(
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             eventsBasedBehavior.GetName(),
             EventsBasedBehavior::GetPropertyActionName(newPropertyName)));
@@ -823,11 +832,11 @@ void WholeProjectRefactorer::RenameEventsBasedBehaviorProperty(
 
     gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
         project,
-        GetBehaviorEventsFunctionFullType(
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             eventsBasedBehavior.GetName(),
             EventsBasedBehavior::GetPropertyConditionName(oldPropertyName)),
-        GetBehaviorEventsFunctionFullType(
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             eventsBasedBehavior.GetName(),
             EventsBasedBehavior::GetPropertyConditionName(newPropertyName)));
@@ -835,6 +844,72 @@ void WholeProjectRefactorer::RenameEventsBasedBehaviorProperty(
   }
 }
 
+void WholeProjectRefactorer::RenameEventsBasedBehaviorSharedProperty(
+    gd::Project& project,
+    const gd::EventsFunctionsExtension& eventsFunctionsExtension,
+    const gd::EventsBasedBehavior& eventsBasedBehavior,
+    const gd::String& oldPropertyName,
+    const gd::String& newPropertyName) {
+  auto& properties = eventsBasedBehavior.GetPropertyDescriptors();
+  if (!properties.Has(oldPropertyName)) return;
+
+  if (properties.Get(oldPropertyName).GetType() == "Behavior") {
+    // This is a property representing another behavior that must exist on the
+    // object.
+
+    // This other "required behavior" uses the property name, that is about to
+    // change, as its name.
+    // So we must change all reference to this name in the events of the
+    // behavior functions.
+    gd::EventsBehaviorRenamer behaviorRenamer(project.GetCurrentPlatform(),
+                                              behaviorObjectParameterName,
+                                              oldPropertyName,
+                                              newPropertyName);
+
+    ExposeEventsBasedBehaviorEvents(
+        project, eventsBasedBehavior, behaviorRenamer);
+  } else {
+    // Properties that represent primitive values will be used through
+    // their related actions/conditions/expressions. Rename these.
+
+    // Order is important: we first rename the expressions then the
+    // instructions, to avoid being unable to fetch the metadata (the types of
+    // parameters) of instructions after they are renamed.
+    gd::ExpressionsRenamer expressionRenamer =
+        gd::ExpressionsRenamer(project.GetCurrentPlatform());
+    expressionRenamer.SetReplacedBehaviorExpression(
+        gd::PlatformExtension::GetBehaviorFullType(eventsFunctionsExtension.GetName(),
+                            eventsBasedBehavior.GetName()),
+        EventsBasedBehavior::GetSharedPropertyExpressionName(oldPropertyName),
+        EventsBasedBehavior::GetSharedPropertyExpressionName(newPropertyName));
+    ExposeProjectEvents(project, expressionRenamer);
+
+    gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
+        project,
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            eventsBasedBehavior.GetName(),
+            EventsBasedBehavior::GetSharedPropertyActionName(oldPropertyName)),
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            eventsBasedBehavior.GetName(),
+            EventsBasedBehavior::GetSharedPropertyActionName(newPropertyName)));
+    ExposeProjectEvents(project, actionRenamer);
+
+    gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
+        project,
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            eventsBasedBehavior.GetName(),
+            EventsBasedBehavior::GetSharedPropertyConditionName(oldPropertyName)),
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            eventsBasedBehavior.GetName(),
+            EventsBasedBehavior::GetSharedPropertyConditionName(newPropertyName)));
+    ExposeProjectEvents(project, conditionRenamer);
+  }
+}
+
 void WholeProjectRefactorer::RenameEventsBasedObjectProperty(
     gd::Project& project,
     const gd::EventsFunctionsExtension& eventsFunctionsExtension,
@@ -853,7 +928,7 @@ void WholeProjectRefactorer::RenameEventsBasedObjectProperty(
   gd::ExpressionsRenamer expressionRenamer =
       gd::ExpressionsRenamer(project.GetCurrentPlatform());
   expressionRenamer.SetReplacedObjectExpression(
-      GetObjectFullType(eventsFunctionsExtension.GetName(),
+      gd::PlatformExtension::GetObjectFullType(eventsFunctionsExtension.GetName(),
                           eventsBasedObject.GetName()),
       EventsBasedObject::GetPropertyExpressionName(oldPropertyName),
       EventsBasedObject::GetPropertyExpressionName(newPropertyName));
@@ -861,11 +936,11 @@ void WholeProjectRefactorer::RenameEventsBasedObjectProperty(
 
   gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
       project,
-      GetObjectEventsFunctionFullType(
+      gd::PlatformExtension::GetObjectEventsFunctionFullType(
           eventsFunctionsExtension.GetName(),
           eventsBasedObject.GetName(),
           EventsBasedObject::GetPropertyActionName(oldPropertyName)),
-      GetObjectEventsFunctionFullType(
+      gd::PlatformExtension::GetObjectEventsFunctionFullType(
           eventsFunctionsExtension.GetName(),
           eventsBasedObject.GetName(),
           EventsBasedObject::GetPropertyActionName(newPropertyName)));
@@ -873,11 +948,11 @@ void WholeProjectRefactorer::RenameEventsBasedObjectProperty(
 
   gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
       project,
-      GetObjectEventsFunctionFullType(
+      gd::PlatformExtension::GetObjectEventsFunctionFullType(
           eventsFunctionsExtension.GetName(),
           eventsBasedObject.GetName(),
           EventsBasedObject::GetPropertyConditionName(oldPropertyName)),
-      GetObjectEventsFunctionFullType(
+      gd::PlatformExtension::GetObjectEventsFunctionFullType(
           eventsFunctionsExtension.GetName(),
           eventsBasedObject.GetName(),
           EventsBasedObject::GetPropertyConditionName(newPropertyName)));
@@ -1114,11 +1189,11 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
         if (eventsFunction.IsAction() || eventsFunction.IsCondition()) {
           gd::InstructionsTypeRenamer renamer = gd::InstructionsTypeRenamer(
               project,
-              GetBehaviorEventsFunctionFullType(
+              gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
                   eventsFunctionsExtension.GetName(),
                   oldBehaviorName,
                   eventsFunction.GetName()),
-              GetBehaviorEventsFunctionFullType(
+              gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
                   eventsFunctionsExtension.GetName(),
                   newBehaviorName,
                   eventsFunction.GetName()));
@@ -1134,11 +1209,11 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
                                         property) {
     gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
         project,
-        GetBehaviorEventsFunctionFullType(
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             oldBehaviorName,
             EventsBasedBehavior::GetPropertyActionName(property.GetName())),
-        GetBehaviorEventsFunctionFullType(
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             newBehaviorName,
             EventsBasedBehavior::GetPropertyActionName(property.GetName())));
@@ -1146,11 +1221,11 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
 
     gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
         project,
-        GetBehaviorEventsFunctionFullType(
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             oldBehaviorName,
             EventsBasedBehavior::GetPropertyConditionName(property.GetName())),
-        GetBehaviorEventsFunctionFullType(
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             newBehaviorName,
             EventsBasedBehavior::GetPropertyConditionName(property.GetName())));
@@ -1160,6 +1235,40 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
     // the behavior
   };
 
+  auto renameBehaviorSharedProperty = [&project,
+                                 &eventsFunctionsExtension,
+                                 &oldBehaviorName,
+                                 &newBehaviorName](
+                                    const gd::NamedPropertyDescriptor&
+                                        property) {
+    gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
+        project,
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            oldBehaviorName,
+            EventsBasedBehavior::GetSharedPropertyActionName(property.GetName())),
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            newBehaviorName,
+            EventsBasedBehavior::GetSharedPropertyActionName(property.GetName())));
+    ExposeProjectEvents(project, actionRenamer);
+
+    gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
+        project,
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            oldBehaviorName,
+            EventsBasedBehavior::GetSharedPropertyConditionName(property.GetName())),
+        gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            newBehaviorName,
+            EventsBasedBehavior::GetSharedPropertyConditionName(property.GetName())));
+    ExposeProjectEvents(project, conditionRenamer);
+
+    // Nothing to do for expression, expressions are not including the name of
+    // the behavior
+  };
+
   // Order is important: we first rename the expressions then the instructions,
   // to avoid being unable to fetch the metadata (the types of parameters) of
   // instructions after they are renamed.
@@ -1180,15 +1289,17 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
   }
 
   // Behavior properties
-  auto& properties = eventsBasedBehavior.GetPropertyDescriptors();
-  for (auto&& property : properties.GetInternalVector()) {
+  for (auto&& property : eventsBasedBehavior.GetPropertyDescriptors().GetInternalVector()) {
     renameBehaviorProperty(*property);
   }
+  for (auto&& property : eventsBasedBehavior.GetSharedPropertyDescriptors().GetInternalVector()) {
+    renameBehaviorSharedProperty(*property);
+  }
 
   DoRenameBehavior(
       project,
-      GetBehaviorFullType(eventsFunctionsExtension.GetName(), oldBehaviorName),
-      GetBehaviorFullType(eventsFunctionsExtension.GetName(), newBehaviorName));
+      gd::PlatformExtension::GetBehaviorFullType(eventsFunctionsExtension.GetName(), oldBehaviorName),
+      gd::PlatformExtension::GetBehaviorFullType(eventsFunctionsExtension.GetName(), newBehaviorName));
 }
 
 void WholeProjectRefactorer::RenameEventsBasedObject(
@@ -1217,11 +1328,11 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
         if (eventsFunction.IsAction() || eventsFunction.IsCondition()) {
           gd::InstructionsTypeRenamer renamer = gd::InstructionsTypeRenamer(
               project,
-              GetObjectEventsFunctionFullType(
+              gd::PlatformExtension::GetObjectEventsFunctionFullType(
                   eventsFunctionsExtension.GetName(),
                   oldObjectName,
                   eventsFunction.GetName()),
-              GetObjectEventsFunctionFullType(
+              gd::PlatformExtension::GetObjectEventsFunctionFullType(
                   eventsFunctionsExtension.GetName(),
                   newObjectName,
                   eventsFunction.GetName()));
@@ -1237,11 +1348,11 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
                                         property) {
     gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
         project,
-        GetObjectEventsFunctionFullType(
+        gd::PlatformExtension::GetObjectEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             oldObjectName,
             EventsBasedObject::GetPropertyActionName(property.GetName())),
-        GetObjectEventsFunctionFullType(
+        gd::PlatformExtension::GetObjectEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             newObjectName,
             EventsBasedObject::GetPropertyActionName(property.GetName())));
@@ -1249,11 +1360,11 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
 
     gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
         project,
-        GetObjectEventsFunctionFullType(
+        gd::PlatformExtension::GetObjectEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             oldObjectName,
             EventsBasedObject::GetPropertyConditionName(property.GetName())),
-        GetObjectEventsFunctionFullType(
+        gd::PlatformExtension::GetObjectEventsFunctionFullType(
             eventsFunctionsExtension.GetName(),
             newObjectName,
             EventsBasedObject::GetPropertyConditionName(property.GetName())));
@@ -1290,8 +1401,8 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
 
   DoRenameObject(
       project,
-      GetObjectFullType(eventsFunctionsExtension.GetName(), oldObjectName),
-      GetObjectFullType(eventsFunctionsExtension.GetName(), newObjectName));
+      gd::PlatformExtension::GetObjectFullType(eventsFunctionsExtension.GetName(), oldObjectName),
+      gd::PlatformExtension::GetObjectFullType(eventsFunctionsExtension.GetName(), newObjectName));
 }
 
 void WholeProjectRefactorer::DoRenameEventsFunction(

Core/GDCore/IDE/WholeProjectRefactorer.h

@@ -207,6 +207,21 @@ class GD_CORE_API WholeProjectRefactorer {
       const gd::String& oldPropertyName,
       const gd::String& newPropertyName);
 
+  /**
+   * \brief Refactor the project **before** a shared property of a behavior is
+   * renamed.
+   *
+   * \warning Do the renaming of the specified shared property after calling
+   * this. This is because the shared property is expected to have its old name
+   * for the refactoring.
+   */
+  static void RenameEventsBasedBehaviorSharedProperty(
+      gd::Project& project,
+      const gd::EventsFunctionsExtension& eventsFunctionsExtension,
+      const gd::EventsBasedBehavior& eventsBasedBehavior,
+      const gd::String& oldPropertyName,
+      const gd::String& newPropertyName);
+
   /**
    * \brief Refactor the project **before** a property of an object is
    * renamed.

Core/GDCore/Project/Behavior.h

@@ -13,7 +13,8 @@ namespace gd {
 
 /**
  * \brief Base class used to represents a behavior that can be applied to an
- * object. It stores the content (i.e: the properties) of a behavior of an object.
+ * object. It stores the content (i.e: the properties) of a behavior of an object
+ * and forward the properties related functions to Javascript with Emscripten.
  *
  * \see gd::BehaviorsSharedData
  * \see gd::Object

Core/GDCore/Project/CustomBehavior.cpp

@@ -11,6 +11,7 @@
 #include "GDCore/Project/PropertyDescriptor.h"
 #include "GDCore/Serialization/Serializer.h"
 #include "GDCore/Serialization/SerializerElement.h"
+#include "GDCore/Project/CustomConfigurationHelper.h"
 
 #include <map>
 
@@ -21,52 +22,26 @@ CustomBehavior *CustomBehavior::Clone() const {
   return clone;
 }
 
+void CustomBehavior::InitializeContent(gd::SerializerElement &behaviorContent) {
+  if (!project.HasEventsBasedBehavior(GetTypeName())) {
+    return;
+  }
+  const auto &eventsBasedBehavior = project.GetEventsBasedBehavior(GetTypeName());
+  const auto &properties = eventsBasedBehavior.GetPropertyDescriptors();
+
+  gd::CustomConfigurationHelper::InitializeContent(properties, behaviorContent);
+}
+
 std::map<gd::String, gd::PropertyDescriptor> CustomBehavior::GetProperties(
     const gd::SerializerElement &behaviorContent) const {
-  auto behaviorProperties = std::map<gd::String, gd::PropertyDescriptor>();
   if (!project.HasEventsBasedBehavior(GetTypeName())) {
+    auto behaviorProperties = std::map<gd::String, gd::PropertyDescriptor>();
     return behaviorProperties;
   }
   const auto &eventsBasedBehavior = project.GetEventsBasedBehavior(GetTypeName());
   const auto &properties = eventsBasedBehavior.GetPropertyDescriptors();
 
-  for (auto &property : properties.GetInternalVector()) {
-    const auto &propertyName = property->GetName();
-    const auto &propertyType = property->GetType();
-
-    // TODO Move this into a PropertyDescriptor copy method.
-    auto &newProperty = behaviorProperties[propertyName]
-                            .SetType(property->GetType())
-                            .SetDescription(property->GetDescription())
-                            .SetGroup(property->GetGroup())
-                            .SetLabel(property->GetLabel())
-                            .SetValue(property->GetValue())
-                            .SetHidden(property->IsHidden());
-
-    for (auto &extraInfo : property->GetExtraInfo()) {
-      newProperty.AddExtraInfo(extraInfo);
-    }
-
-    if (behaviorContent.HasChild(propertyName)) {
-      if (propertyType == "String" || propertyType == "Choice" ||
-          propertyType == "Color" || propertyType == "Behavior") {
-        newProperty.SetValue(
-            behaviorContent.GetChild(propertyName).GetStringValue());
-      } else if (propertyType == "Number") {
-        newProperty.SetValue(gd::String::From(
-            behaviorContent.GetChild(propertyName).GetDoubleValue()));
-      } else if (propertyType == "Boolean") {
-        newProperty.SetValue(
-            behaviorContent.GetChild(propertyName).GetBoolValue() ? "true"
-                                                                  : "false");
-      }
-    } else {
-      // No value was serialized for this property. `newProperty`
-      // will have the default value coming from `enumeratedProperty`.
-    }
-  }
-
-  return behaviorProperties;
+  return gd::CustomConfigurationHelper::GetProperties(properties, behaviorContent);
 }
 
 bool CustomBehavior::UpdateProperty(gd::SerializerElement &behaviorContent,
@@ -77,43 +52,10 @@ bool CustomBehavior::UpdateProperty(gd::SerializerElement &behaviorContent,
   }
   const auto &eventsBasedBehavior = project.GetEventsBasedBehavior(GetTypeName());
   const auto &properties = eventsBasedBehavior.GetPropertyDescriptors();
-  if (!properties.Has(propertyName)) {
-    return false;
-  }
-  const auto &property = properties.Get(propertyName);
 
-  auto &element = behaviorContent.AddChild(propertyName);
-  const gd::String &propertyType = property.GetType();
-
-  if (propertyType == "String" || propertyType == "Choice" ||
-      propertyType == "Color" || propertyType == "Behavior") {
-    element.SetStringValue(newValue);
-  } else if (propertyType == "Number") {
-    element.SetDoubleValue(newValue.To<double>());
-  } else if (propertyType == "Boolean") {
-    element.SetBoolValue(newValue == "1");
-  }
-
-  return true;
-}
-
-void CustomBehavior::InitializeContent(gd::SerializerElement &behaviorContent) {
-  if (!project.HasEventsBasedBehavior(GetTypeName())) {
-    return;
-  }
-  const auto &eventsBasedBehavior = project.GetEventsBasedBehavior(GetTypeName());
-  const auto &properties = eventsBasedBehavior.GetPropertyDescriptors();
-  for (auto &&property : properties.GetInternalVector()) {
-    auto &element = behaviorContent.AddChild(property->GetName());
-    auto propertyType = property->GetType();
-
-    if (propertyType == "String" || propertyType == "Choice" ||
-        propertyType == "Color" || propertyType == "Behavior") {
-      element.SetStringValue(property->GetValue());
-    } else if (propertyType == "Number") {
-      element.SetDoubleValue(property->GetValue().To<double>());
-    } else if (propertyType == "Boolean") {
-      element.SetBoolValue(property->GetValue() == "true");
-    }
-  }
+  return gd::CustomConfigurationHelper::UpdateProperty(
+      properties,
+      behaviorContent,
+      propertyName,
+      newValue);
 }

Core/GDCore/Project/CustomBehavior.h

@@ -17,8 +17,7 @@ using namespace gd;
 
 namespace gd {
 /**
- * \brief A gd::Behavior that stores its content in JSON and forward the
- * properties related functions to Javascript with Emscripten.
+ * \brief A gd::Behavior that stores its content in JSON.
  */
 class CustomBehavior : public gd::Behavior {
 public:
@@ -34,13 +33,11 @@ public:
   using Behavior::UpdateProperty;
 
 protected:
-  virtual std::map<gd::String, gd::PropertyDescriptor>
+  std::map<gd::String, gd::PropertyDescriptor>
   GetProperties(const gd::SerializerElement &behaviorContent) const override;
-  virtual bool UpdateProperty(gd::SerializerElement &behaviorContent,
-                              const gd::String &name,
-                              const gd::String &value) override;
-  virtual void
-  InitializeContent(gd::SerializerElement &behaviorContent) override;
+  bool UpdateProperty(gd::SerializerElement &behaviorContent,
+                      const gd::String &name, const gd::String &value) override;
+  void InitializeContent(gd::SerializerElement &behaviorContent) override;
 
 private:
   const Project &project; ///< The project is used to get the

Core/GDCore/Project/CustomBehaviorsSharedData.cpp

@@ -0,0 +1,61 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "CustomBehaviorsSharedData.h"
+
+#include "GDCore/IDE/Project/ArbitraryResourceWorker.h"
+#include "GDCore/Project/Behavior.h"
+#include "GDCore/Project/Project.h"
+#include "GDCore/Project/PropertyDescriptor.h"
+#include "GDCore/Serialization/Serializer.h"
+#include "GDCore/Serialization/SerializerElement.h"
+#include "GDCore/Project/CustomConfigurationHelper.h"
+
+#include <map>
+
+using namespace gd;
+
+CustomBehaviorsSharedData *CustomBehaviorsSharedData::Clone() const {
+  CustomBehaviorsSharedData *clone = new CustomBehaviorsSharedData(*this);
+  return clone;
+}
+
+void CustomBehaviorsSharedData::InitializeContent(gd::SerializerElement &behaviorContent) {
+  if (!project.HasEventsBasedBehavior(GetTypeName())) {
+    return;
+  }
+  const auto &eventsBasedBehavior = project.GetEventsBasedBehavior(GetTypeName());
+  const auto &properties = eventsBasedBehavior.GetSharedPropertyDescriptors();
+
+  gd::CustomConfigurationHelper::InitializeContent(properties, behaviorContent);
+}
+
+std::map<gd::String, gd::PropertyDescriptor> CustomBehaviorsSharedData::GetProperties(
+    const gd::SerializerElement &behaviorContent) const {
+  if (!project.HasEventsBasedBehavior(GetTypeName())) {
+    auto behaviorProperties = std::map<gd::String, gd::PropertyDescriptor>();
+    return behaviorProperties;
+  }
+  const auto &eventsBasedBehavior = project.GetEventsBasedBehavior(GetTypeName());
+  const auto &properties = eventsBasedBehavior.GetSharedPropertyDescriptors();
+
+  return gd::CustomConfigurationHelper::GetProperties(properties, behaviorContent);
+}
+
+bool CustomBehaviorsSharedData::UpdateProperty(gd::SerializerElement &behaviorContent,
+                                    const gd::String &propertyName,
+                                    const gd::String &newValue) {
+  if (!project.HasEventsBasedBehavior(GetTypeName())) {
+    return false;
+  }
+  const auto &eventsBasedBehavior = project.GetEventsBasedBehavior(GetTypeName());
+  const auto &properties = eventsBasedBehavior.GetSharedPropertyDescriptors();
+
+  return gd::CustomConfigurationHelper::UpdateProperty(
+      properties,
+      behaviorContent,
+      propertyName,
+      newValue);
+}

Core/GDCore/Project/CustomBehaviorsSharedData.h

@@ -0,0 +1,46 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#ifndef GDCORE_CUSTOMBEHAVIORSSHAREDDATA_H
+#define GDCORE_CUSTOMBEHAVIORSSHAREDDATA_H
+
+#include "GDCore/Project/BehaviorsSharedData.h"
+#include "GDCore/Project/EventsBasedBehavior.h"
+#include "GDCore/Project/Project.h"
+#include "GDCore/Project/PropertyDescriptor.h"
+#include "GDCore/Serialization/Serializer.h"
+#include "GDCore/Serialization/SerializerElement.h"
+
+using namespace gd;
+
+namespace gd {
+/**
+ * \brief A gd::BehaviorsSharedData that stores its content in JSON.
+ */
+class CustomBehaviorsSharedData : public gd::BehaviorsSharedData {
+public:
+  CustomBehaviorsSharedData(const gd::String &name, const Project &project_,
+                            const gd::String &fullType)
+      : BehaviorsSharedData(name, fullType), project(project_) {}
+  CustomBehaviorsSharedData *Clone() const override;
+
+  using BehaviorsSharedData::GetProperties;
+  using BehaviorsSharedData::InitializeContent;
+  using BehaviorsSharedData::UpdateProperty;
+
+protected:
+  std::map<gd::String, gd::PropertyDescriptor>
+  GetProperties(const gd::SerializerElement &behaviorContent) const override;
+  bool UpdateProperty(gd::SerializerElement &behaviorContent,
+                      const gd::String &name, const gd::String &value) override;
+  void InitializeContent(gd::SerializerElement &behaviorContent) override;
+
+private:
+  const Project &project; ///< The project is used to get the
+                          ///< EventBasedBehavior from the fullType.
+};
+} // namespace gd
+
+#endif // GDCORE_CUSTOMBEHAVIORSSHAREDDATA_H

Core/GDCore/Project/CustomConfigurationHelper.cpp

@@ -0,0 +1,104 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "CustomConfigurationHelper.h"
+
+#include "GDCore/IDE/Project/ArbitraryResourceWorker.h"
+#include "GDCore/Project/Behavior.h"
+#include "GDCore/Project/Project.h"
+#include "GDCore/Project/PropertyDescriptor.h"
+#include "GDCore/Serialization/Serializer.h"
+#include "GDCore/Serialization/SerializerElement.h"
+
+#include <map>
+
+using namespace gd;
+
+void CustomConfigurationHelper::InitializeContent(
+    const gd::SerializableWithNameList<gd::NamedPropertyDescriptor> &properties,
+    gd::SerializerElement &configurationContent) {
+  for (auto &&property : properties.GetInternalVector()) {
+    auto &element = configurationContent.AddChild(property->GetName());
+    auto propertyType = property->GetType();
+
+    if (propertyType == "String" || propertyType == "Choice" ||
+        propertyType == "Color" || propertyType == "Behavior") {
+      element.SetStringValue(property->GetValue());
+    } else if (propertyType == "Number") {
+      element.SetDoubleValue(property->GetValue().To<double>());
+    } else if (propertyType == "Boolean") {
+      element.SetBoolValue(property->GetValue() == "true");
+    }
+  }
+}
+
+std::map<gd::String, gd::PropertyDescriptor> CustomConfigurationHelper::GetProperties(
+    const gd::SerializableWithNameList<gd::NamedPropertyDescriptor> &properties,
+    const gd::SerializerElement &configurationContent) {
+  auto behaviorProperties = std::map<gd::String, gd::PropertyDescriptor>();
+
+  for (auto &property : properties.GetInternalVector()) {
+    const auto &propertyName = property->GetName();
+    const auto &propertyType = property->GetType();
+
+    // TODO Move this into a PropertyDescriptor copy method.
+    auto &newProperty = behaviorProperties[propertyName]
+                            .SetType(property->GetType())
+                            .SetDescription(property->GetDescription())
+                            .SetGroup(property->GetGroup())
+                            .SetLabel(property->GetLabel())
+                            .SetValue(property->GetValue())
+                            .SetHidden(property->IsHidden());
+
+    for (auto &extraInfo : property->GetExtraInfo()) {
+      newProperty.AddExtraInfo(extraInfo);
+    }
+
+    if (configurationContent.HasChild(propertyName)) {
+      if (propertyType == "String" || propertyType == "Choice" ||
+          propertyType == "Color" || propertyType == "Behavior") {
+        newProperty.SetValue(
+            configurationContent.GetChild(propertyName).GetStringValue());
+      } else if (propertyType == "Number") {
+        newProperty.SetValue(gd::String::From(
+            configurationContent.GetChild(propertyName).GetDoubleValue()));
+      } else if (propertyType == "Boolean") {
+        newProperty.SetValue(
+            configurationContent.GetChild(propertyName).GetBoolValue() ? "true"
+                                                                  : "false");
+      }
+    } else {
+      // No value was serialized for this property. `newProperty`
+      // will have the default value coming from `enumeratedProperty`.
+    }
+  }
+
+  return behaviorProperties;
+}
+
+bool CustomConfigurationHelper::UpdateProperty(
+    const gd::SerializableWithNameList<gd::NamedPropertyDescriptor> &properties,
+    gd::SerializerElement &configurationContent,
+    const gd::String &propertyName,
+    const gd::String &newValue) {
+  if (!properties.Has(propertyName)) {
+    return false;
+  }
+  const auto &property = properties.Get(propertyName);
+
+  auto &element = configurationContent.AddChild(propertyName);
+  const gd::String &propertyType = property.GetType();
+
+  if (propertyType == "String" || propertyType == "Choice" ||
+      propertyType == "Color" || propertyType == "Behavior") {
+    element.SetStringValue(newValue);
+  } else if (propertyType == "Number") {
+    element.SetDoubleValue(newValue.To<double>());
+  } else if (propertyType == "Boolean") {
+    element.SetBoolValue(newValue == "1");
+  }
+
+  return true;
+}

Core/GDCore/Project/CustomConfigurationHelper.h

@@ -0,0 +1,43 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#ifndef GDCORE_CUSTOMCONFIGURATIONHELPER_H
+#define GDCORE_CUSTOMCONFIGURATIONHELPER_H
+
+#include "GDCore/Project/Behavior.h"
+#include "GDCore/Project/EventsBasedBehavior.h"
+#include "GDCore/Project/Project.h"
+#include "GDCore/Project/PropertyDescriptor.h"
+#include "GDCore/Serialization/Serializer.h"
+#include "GDCore/Serialization/SerializerElement.h"
+
+using namespace gd;
+
+namespace gd {
+/**
+ * \brief Helper functions that gd::CustomBehavior and gd::CustomBehaviorsSharedData use to
+ * store their content in JSON.
+ */
+class CustomConfigurationHelper {
+public:
+  CustomConfigurationHelper() {}
+
+  static void InitializeContent(
+      const gd::SerializableWithNameList<gd::NamedPropertyDescriptor> &properties,
+      gd::SerializerElement &behaviorContent);
+
+  static std::map<gd::String, gd::PropertyDescriptor> GetProperties(
+      const gd::SerializableWithNameList<gd::NamedPropertyDescriptor> &properties,
+      const gd::SerializerElement &behaviorContent);
+
+  static bool UpdateProperty(
+      const gd::SerializableWithNameList<gd::NamedPropertyDescriptor> &properties,
+      gd::SerializerElement &behaviorContent,
+      const gd::String &name,
+      const gd::String &value);
+};
+}  // namespace gd
+
+#endif  // GDCORE_CUSTOMCONFIGURATIONHELPER_H

Core/GDCore/Project/CustomObjectConfiguration.cpp

@@ -12,6 +12,7 @@
 #include "GDCore/Serialization/Serializer.h"
 #include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/Tools/Log.h"
+#include "GDCore/Project/CustomConfigurationHelper.h"
 
 using namespace gd;
 
@@ -67,50 +68,7 @@ std::map<gd::String, gd::PropertyDescriptor> CustomObjectConfiguration::GetPrope
     const auto &eventsBasedObject = project->GetEventsBasedObject(GetType());
     const auto &properties = eventsBasedObject.GetPropertyDescriptors();
 
-    for (auto &property : properties.GetInternalVector()) {
-      const auto &propertyName = property->GetName();
-      const auto &propertyType = property->GetType();
-
-      // TODO Move this into a PropertyDescriptor copy method.
-      auto &newProperty = objectProperties[propertyName]
-            .SetType(property->GetType())
-            .SetDescription(property->GetDescription())
-            .SetGroup(property->GetGroup())
-            .SetLabel(property->GetLabel())
-            .SetValue(property->GetValue())
-            .SetHidden(property->IsHidden());
-      
-      for (auto &extraInfo : property->GetExtraInfo()) {
-        newProperty.AddExtraInfo(extraInfo);
-      }
-
-      if (objectContent.HasChild(propertyName)) {
-        if (
-          propertyType == "String" ||
-          propertyType == "Choice" ||
-          propertyType == "Color"
-        ) {
-          newProperty.SetValue(
-            objectContent.GetChild(propertyName).GetStringValue()
-          );
-        } else if (propertyType == "Number") {
-          newProperty.SetValue(
-            gd::String::From(objectContent.GetChild(propertyName).GetDoubleValue())
-          );
-        } else if (propertyType == "Boolean") {
-          newProperty.SetValue(
-            objectContent.GetChild(propertyName).GetBoolValue()
-              ? "true"
-              : "false"
-          );
-        }
-      } else {
-        // No value was serialized for this property. `newProperty`
-        // will have the default value coming from `enumeratedProperty`.
-      }
-    }
-
-    return objectProperties;
+    return gd::CustomConfigurationHelper::GetProperties(properties, objectContent);
 }
 
 bool CustomObjectConfiguration::UpdateProperty(const gd::String& propertyName,
@@ -120,27 +78,12 @@ bool CustomObjectConfiguration::UpdateProperty(const gd::String& propertyName,
     }
     const auto &eventsBasedObject = project->GetEventsBasedObject(GetType());
     const auto &properties = eventsBasedObject.GetPropertyDescriptors();
-    if (!properties.Has(propertyName)) {
-      return false;
-    }
-    const auto &property = properties.Get(propertyName);
-
-    auto &element = objectContent.AddChild(propertyName);
-    const gd::String &propertyType = property.GetType();
-
-    if (
-      propertyType == "String" ||
-      propertyType == "Choice" ||
-      propertyType == "Color"
-    ) {
-      element.SetStringValue(newValue);
-    } else if (propertyType == "Number") {
-      element.SetDoubleValue(newValue.To<double>());
-    } else if (propertyType == "Boolean") {
-      element.SetBoolValue(newValue == "1");
-    }
-
-    return true;
+    
+    return gd::CustomConfigurationHelper::UpdateProperty(
+        properties,
+        objectContent,
+        propertyName,
+        newValue);
 }
 
 std::map<gd::String, gd::PropertyDescriptor>

Core/GDCore/Project/EventsBasedBehavior.cpp

@@ -21,6 +21,8 @@ void EventsBasedBehavior::SerializeTo(SerializerElement& element) const {
   if (isPrivate) {
     element.SetBoolAttribute("private", isPrivate);
   }
+  sharedPropertyDescriptors.SerializeElementsTo(
+      "propertyDescriptor", element.AddChild("sharedPropertyDescriptors"));
 }
 
 void EventsBasedBehavior::UnserializeFrom(gd::Project& project,
@@ -28,6 +30,8 @@ void EventsBasedBehavior::UnserializeFrom(gd::Project& project,
   AbstractEventsBasedEntity::UnserializeFrom(project, element);
   objectType = element.GetStringAttribute("objectType");
   isPrivate = element.GetBoolAttribute("private");
+  sharedPropertyDescriptors.UnserializeElementsFrom(
+      "propertyDescriptor", element.GetChild("sharedPropertyDescriptors"));
 }
 
 }  // namespace gd

Core/GDCore/Project/EventsBasedBehavior.h

@@ -88,6 +88,43 @@ class GD_CORE_API EventsBasedBehavior: public AbstractEventsBasedEntity {
     return *this;
   }
 
+  /**
+   * \brief Return a reference to the list of shared properties.
+   */
+  SerializableWithNameList<NamedPropertyDescriptor>& GetSharedPropertyDescriptors() {
+    return sharedPropertyDescriptors;
+  }
+
+  /**
+   * \brief Return a const reference to the list of shared properties.
+   */
+  const SerializableWithNameList<NamedPropertyDescriptor>& GetSharedPropertyDescriptors()
+      const {
+    return sharedPropertyDescriptors;
+  }
+
+  /**
+   * \brief Get the name of the action to change a shared property.
+   */
+  static gd::String GetSharedPropertyActionName(const gd::String &propertyName) {
+    return "SetSharedProperty" + propertyName;
+  };
+
+  /**
+   * \brief Get the name of the condition to compare a shared property.
+   */
+  static gd::String GetSharedPropertyConditionName(const gd::String &propertyName) {
+    return "SharedProperty" + propertyName;
+  };
+
+  /**
+   * \brief Get the name of the expression to get a shared property.
+   */
+  static gd::String
+  GetSharedPropertyExpressionName(const gd::String &propertyName) {
+    return "SharedProperty" + propertyName;
+  };
+
   void SerializeTo(SerializerElement& element) const override;
 
   void UnserializeFrom(gd::Project& project,
@@ -96,6 +133,7 @@ class GD_CORE_API EventsBasedBehavior: public AbstractEventsBasedEntity {
  private:
   gd::String objectType;
   bool isPrivate = false;
+  SerializableWithNameList<NamedPropertyDescriptor> sharedPropertyDescriptors;
 };
 
 }  // namespace gd

Core/GDCore/Project/EventsFunction.h

@@ -145,6 +145,11 @@ class GD_CORE_API EventsFunction {
    */
   const gd::ValueTypeMetadata& GetExpressionType() const { return expressionType; }
 
+  /**
+   * \brief Get the type of the expression
+   */
+  gd::ValueTypeMetadata& GetExpressionType() { return expressionType; }
+
   enum FunctionType {
       Action,
       Condition,

Core/GDCore/Project/EventsFunctionsExtension.cpp

@@ -54,7 +54,7 @@ void EventsFunctionsExtension::SerializeTo(SerializerElement& element) const {
   element.SetAttribute("version", version);
   element.SetAttribute("extensionNamespace", extensionNamespace);
   element.SetAttribute("shortDescription", shortDescription);
-  element.SetAttribute("description", description);
+  element.AddChild("description").SetMultilineStringValue(description);
   element.SetAttribute("name", name);
   element.SetAttribute("fullName", fullName);
   element.SetAttribute("category", category);
@@ -100,7 +100,7 @@ void EventsFunctionsExtension::UnserializeExtensionDeclarationFrom(
   version = element.GetStringAttribute("version");
   extensionNamespace = element.GetStringAttribute("extensionNamespace");
   shortDescription = element.GetStringAttribute("shortDescription");
-  description = element.GetStringAttribute("description");
+  description = element.GetChild("description").GetMultilineStringValue();
   name = element.GetStringAttribute("name");
   fullName = element.GetStringAttribute("fullName");
   category = element.GetStringAttribute("category");

Core/GDCore/Project/InitialInstance.h

@@ -7,13 +7,14 @@
 #ifndef GDCORE_INITIALINSTANCE_H
 #define GDCORE_INITIALINSTANCE_H
 #include <map>
+
 #include "GDCore/Project/VariablesContainer.h"
 #include "GDCore/String.h"
 namespace gd {
 class PropertyDescriptor;
 class Project;
 class Layout;
-}
+}  // namespace gd
 
 namespace gd {
 
@@ -127,7 +128,8 @@ class GD_CORE_API InitialInstance {
   void SetCustomHeight(double height_) { height = height_; }
 
   /**
-   * \brief Return true if the instance is locked and cannot be moved in the IDE.
+   * \brief Return true if the instance is locked and cannot be moved in the
+   * IDE.
    */
   bool IsLocked() const { return locked; };
 
@@ -240,7 +242,7 @@ class GD_CORE_API InitialInstance {
    * \brief Set the value of a string property stored in the instance.
    */
   void SetRawStringProperty(const gd::String& name, const gd::String& value);
-///@}
+  ///@}
 
   /** \name Saving and loading
    * Members functions related to serialization.
@@ -272,18 +274,19 @@ class GD_CORE_API InitialInstance {
       stringProperties;  ///< More data which can be used by the object
 
   gd::String objectName;  ///< Object name
-  double x;                ///< Object initial X position
-  double y;                ///< Object initial Y position
-  double angle;            ///< Object initial angle
+  double x;               ///< Object initial X position
+  double y;               ///< Object initial Y position
+  double angle;           ///< Object initial angle
   int zOrder;             ///< Object initial Z order
   gd::String layer;       ///< Object initial layer
   bool personalizedSize;  ///< True if object has a custom size
-  double width;            ///< Object custom width
-  double height;           ///< Object custom height
+  double width;           ///< Object custom width
+  double height;          ///< Object custom height
   gd::VariablesContainer initialVariables;  ///< Instance specific variables
   bool locked;                              ///< True if the instance is locked
   bool sealed;                              ///< True if the instance is sealed
-  mutable gd::String persistentUuid; ///< A persistent random version 4 UUID, useful for hot reloading.
+  mutable gd::String persistentUuid;  ///< A persistent random version 4 UUID,
+                                      ///< useful for hot reloading.
 
   static gd::String*
       badStringProperyValue;  ///< Empty string returned by GetRawStringProperty

Core/GDCore/Project/InitialInstancesContainer.cpp

@@ -60,7 +60,6 @@ void InitialInstancesContainer::IterateOverInstancesWithZOrdering(
   for (auto& instance : sortedInstances) func(instance);
 }
 
-#if defined(GD_IDE_ONLY)
 gd::InitialInstance& InitialInstancesContainer::InsertNewInitialInstance() {
   gd::InitialInstance newInstance;
   initialInstances.push_back(newInstance);
@@ -173,7 +172,6 @@ void InitialInstancesContainer::SerializeTo(SerializerElement& element) const {
 }
 
 void InitialInstancesContainer::Clear() { initialInstances.clear(); }
-#endif
 
 InitialInstanceFunctor::~InitialInstanceFunctor(){};
 

Core/GDCore/Project/Layout.cpp

@@ -17,6 +17,7 @@
 #include "GDCore/IDE/SceneNameMangler.h"
 #include "GDCore/Project/Behavior.h"
 #include "GDCore/Project/BehaviorsSharedData.h"
+#include "GDCore/Project/CustomBehaviorsSharedData.h"
 #include "GDCore/Project/InitialInstance.h"
 #include "GDCore/Project/Layer.h"
 #include "GDCore/Project/Object.h"
@@ -26,6 +27,7 @@
 #include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/String.h"
 #include "GDCore/Tools/PolymorphicClone.h"
+#include "GDCore/Tools/Log.h"
 
 using namespace std;
 
@@ -240,11 +242,11 @@ void Layout::UpdateBehaviorsSharedData(gd::Project& project) {
   }
 }
 
-std::unique_ptr<gd::BehaviorsSharedData> Layout::CreateBehaviorsSharedData(gd::Project& project, const gd::String& name, const gd::String& behaviorsType) {
+std::unique_ptr<gd::BehaviorsSharedData> Layout::CreateBehaviorsSharedData(
+        gd::Project& project, const gd::String& name, const gd::String& behaviorsType) {
     if (project.HasEventsBasedBehavior(behaviorsType)) {
-      // Events based behaviors don't have shared data yet.
       auto sharedData =
-          gd::make_unique<gd::BehaviorsSharedData>(name, behaviorsType);
+          gd::make_unique<gd::CustomBehaviorsSharedData>(name, project, behaviorsType);
       sharedData->InitializeContent();
       return std::move(sharedData);
     }
@@ -253,7 +255,14 @@ std::unique_ptr<gd::BehaviorsSharedData> Layout::CreateBehaviorsSharedData(gd::P
             project.GetCurrentPlatform(),
             behaviorsType);
     if (gd::MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
-      return nullptr;
+      gd::LogWarning("Tried to create a behavior shared data with an unknown type: " +
+                     behaviorsType + " on object " + GetName() + "!");
+    // It's probably an events-based behavior that was removed.
+    // Create a custom behavior shared data to preserve the properties values.
+      auto sharedData =
+          gd::make_unique<gd::CustomBehaviorsSharedData>(name, project, behaviorsType);
+      sharedData->InitializeContent();
+      return std::move(sharedData);
     }
 
     gd::BehaviorsSharedData* behaviorsSharedDataBluePrint =

Core/GDCore/Project/MeasurementBaseUnit.cpp

@@ -0,0 +1,27 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-present Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "MeasurementBaseUnit.h"
+#include "GDCore/Serialization/SerializerElement.h"
+#include "GDCore/String.h"
+#include "GDCore/Tools/Localization.h"
+#include <vector>
+
+namespace gd {
+
+MeasurementBaseUnit::~MeasurementBaseUnit() {}
+
+const gd::MeasurementBaseUnit MeasurementBaseUnit::degreeAngle =
+    MeasurementBaseUnit("degree", "deg", "");
+const gd::MeasurementBaseUnit MeasurementBaseUnit::pixel =
+    MeasurementBaseUnit("pixel", "px", "distance");
+const gd::MeasurementBaseUnit MeasurementBaseUnit::meter =
+    MeasurementBaseUnit("meter", "m", "distance");
+const gd::MeasurementBaseUnit MeasurementBaseUnit::second =
+    MeasurementBaseUnit("second", "s", "time");
+const gd::MeasurementBaseUnit MeasurementBaseUnit::kilogram =
+    MeasurementBaseUnit("kilogram", "Kg", "mass");
+
+} // namespace gd

Core/GDCore/Project/MeasurementBaseUnit.h

@@ -0,0 +1,57 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-present Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#ifndef GDCORE_MEASUREMENTBASEUNIT
+#define GDCORE_MEASUREMENTBASEUNIT
+#include <vector>
+
+#include "GDCore/String.h"
+namespace gd {
+class SerializerElement;
+}
+
+namespace gd {
+
+/**
+ * \brief An atomic unit of measurement.
+ */
+class GD_CORE_API MeasurementBaseUnit {
+public:
+  MeasurementBaseUnit(gd::String name_, gd::String symbol_,
+                      gd::String quantity_)
+      : name(name_), symbol(symbol_), quantity(quantity_) {}
+
+  virtual ~MeasurementBaseUnit();
+
+  /**
+   * \brief Return the unit name.
+   */
+  const gd::String &GetName() const { return name; }
+
+  /**
+   * \brief Return the unit symbol.
+   */
+  const gd::String &GetSymbol() const { return symbol; }
+
+  /**
+   * \brief Return the physical quantity.
+   */
+  const gd::String &GetQuantity() const { return quantity; }
+
+  static const gd::MeasurementBaseUnit degreeAngle;
+  static const gd::MeasurementBaseUnit pixel;
+  static const gd::MeasurementBaseUnit meter;
+  static const gd::MeasurementBaseUnit second;
+  static const gd::MeasurementBaseUnit kilogram;
+
+private:
+  gd::String name;     ///< The unit name
+  gd::String symbol;   ///< The unit symbol
+  gd::String quantity; ///< The physical quantity
+};
+
+} // namespace gd
+
+#endif // GDCORE_MEASUREMENTBASEUNIT

Core/GDCore/Project/MeasurementUnit.cpp

@@ -0,0 +1,38 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-present Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "MeasurementUnit.h"
+#include "GDCore/Serialization/SerializerElement.h"
+#include "GDCore/String.h"
+#include <vector>
+
+namespace gd {
+
+MeasurementUnit::~MeasurementUnit() {}
+
+gd::MeasurementUnit MeasurementUnit::undefined = CreateUndefined();
+gd::MeasurementUnit MeasurementUnit::dimensionless = CreateDimensionless();
+gd::MeasurementUnit MeasurementUnit::degreeAngle = CreateDegreeAngle();
+gd::MeasurementUnit MeasurementUnit::second = CreateSecond();
+gd::MeasurementUnit MeasurementUnit::pixel = CreatePixel();
+gd::MeasurementUnit MeasurementUnit::pixelSpeed = CreatePixelSpeed();
+gd::MeasurementUnit MeasurementUnit::pixelAcceleration =
+    CreatePixelAcceleration();
+gd::MeasurementUnit MeasurementUnit::newton = CreateNewton();
+gd::MeasurementUnit MeasurementUnit::angularSpeed = CreateAngularSpeed();
+
+void MeasurementUnit::ApplyTranslation() {
+  undefined = CreateUndefined();
+  dimensionless = CreateDimensionless();
+  degreeAngle = CreateDegreeAngle();
+  second = CreateSecond();
+  pixel = CreatePixel();
+  pixelSpeed = CreatePixelSpeed();
+  pixelAcceleration = CreatePixelAcceleration();
+  newton = CreateNewton();
+  angularSpeed = CreateAngularSpeed();
+}
+
+} // namespace gd

Core/GDCore/Project/MeasurementUnit.h

@@ -0,0 +1,197 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-present Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#ifndef GDCORE_MEASUREMENTUNIT
+#define GDCORE_MEASUREMENTUNIT
+#include <vector>
+
+#include "GDCore/Project/MeasurementUnitElement.h"
+#include "GDCore/String.h"
+#include "GDCore/Tools/Localization.h"
+
+namespace gd {
+class SerializerElement;
+class MeasurementBaseUnit;
+} // namespace gd
+
+namespace gd {
+
+/**
+ * \brief A unit of measurement.
+ */
+class GD_CORE_API MeasurementUnit {
+public:
+  MeasurementUnit(const std::vector<gd::MeasurementUnitElement> &elements_,
+                  gd::String name_, gd::String label_,
+                  gd::String elementsWithWords_, gd::String description_ = "")
+      : elements(elements_), name(name_), label(label_),
+        description(description_), elementsWithWords(elementsWithWords_) {}
+
+  MeasurementUnit(gd::String name_, gd::String label_,
+                  gd::String elementsWithWords_, gd::String description_ = "")
+      : name(name_), label(label_), description(description_),
+        elementsWithWords(elementsWithWords_) {}
+
+  virtual ~MeasurementUnit();
+
+  /**
+   * \brief Return the unit name.
+   */
+  const gd::String &GetName() const { return name; }
+
+  /**
+   * \brief Return the unit label.
+   */
+  const gd::String &GetLabel() const { return label; }
+
+  /**
+   * \brief Return the unit description.
+   */
+  const gd::String &GetDescription() const { return description; }
+
+  /**
+   * \brief Return the unit description.
+   */
+  const gd::String &GetElementsWithWords() const { return elementsWithWords; }
+
+  /**
+   * \brief Return the unit elements.
+   */
+  const std::vector<gd::MeasurementUnitElement> &GetElements() const {
+    return elements;
+  }
+
+  std::size_t GetElementsCount() const { return elements.size(); }
+
+  int GetElementPower(std::size_t elementIndex) const {
+    return elements.at(elementIndex).GetPower();
+  }
+
+  const gd::MeasurementBaseUnit &
+  GetElementBaseUnit(std::size_t elementIndex) const {
+    return elements.at(elementIndex).GetBaseUnit();
+  }
+
+  bool IsUndefined() const { return this == &gd::MeasurementUnit::undefined; }
+
+  static void ApplyTranslation();
+
+  static gd::MeasurementUnit &GetUndefined() { return undefined; }
+
+  static gd::MeasurementUnit &GetDimensionless() { return dimensionless; }
+
+  static gd::MeasurementUnit &GetDegreeAngle() { return degreeAngle; }
+
+  static gd::MeasurementUnit &GetSecond() { return second; }
+
+  static gd::MeasurementUnit &GetPixel() { return pixel; }
+
+  static gd::MeasurementUnit &GetPixelSpeed() { return pixelSpeed; }
+
+  static gd::MeasurementUnit &GetPixelAcceleration() {
+    return pixelAcceleration;
+  }
+
+  static gd::MeasurementUnit &GetAngularSpeed() { return angularSpeed; }
+
+  static gd::MeasurementUnit &GetNewton() { return newton; }
+
+private:
+  static gd::MeasurementUnit undefined;
+  static gd::MeasurementUnit dimensionless;
+  static gd::MeasurementUnit degreeAngle;
+  static gd::MeasurementUnit second;
+  static gd::MeasurementUnit pixel;
+  static gd::MeasurementUnit pixelSpeed;
+  static gd::MeasurementUnit pixelAcceleration;
+  static gd::MeasurementUnit newton;
+  static gd::MeasurementUnit angularSpeed;
+
+  static gd::MeasurementUnit CreateUndefined() {
+    return MeasurementUnit("Undefined", _("Undefined"), "");
+  }
+
+  static gd::MeasurementUnit CreateDimensionless() {
+    return MeasurementUnit("Dimensionless", _("Dimensionless"), "");
+  }
+
+  static gd::MeasurementUnit CreateDegreeAngle() {
+    std::vector<gd::MeasurementUnitElement> elements;
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::degreeAngle, 1));
+    return MeasurementUnit(elements, "DegreeAngle", _("Angle"), _("degree"));
+  }
+
+  static gd::MeasurementUnit CreateSecond() {
+    std::vector<gd::MeasurementUnitElement> elements;
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::second, 1));
+    return MeasurementUnit(elements, "Second", _("Duration"), _("second"));
+  }
+
+  static gd::MeasurementUnit CreatePixel() {
+    std::vector<gd::MeasurementUnitElement> elements;
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::pixel, 1));
+    return MeasurementUnit(elements, "Pixel", _("Distance"), _("pixel"));
+  }
+
+  static gd::MeasurementUnit CreatePixelSpeed() {
+    std::vector<gd::MeasurementUnitElement> elements;
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::pixel, 1));
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::second, -1));
+    return MeasurementUnit(elements, "PixelSpeed", _("Speed"),
+                           _("pixel per second"),
+                           _("How much distance is covered per second."));
+  }
+
+  static gd::MeasurementUnit CreatePixelAcceleration() {
+    std::vector<gd::MeasurementUnitElement> elements;
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::pixel, 1));
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::second, -2));
+    return MeasurementUnit(elements, "PixelAcceleration", _("Acceleration"),
+                           _("pixel per second, per second"),
+                           _("How much speed is gained (or lost) per second."));
+  }
+
+  static gd::MeasurementUnit CreateNewton() {
+    std::vector<gd::MeasurementUnitElement> elements;
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::meter, 1));
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::kilogram, 1));
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::second, -2));
+    return MeasurementUnit(
+        elements, "Newton",
+        _("Force (in Newton)"), _("meter kilogram per second, per second"),
+        _("A unit to measure forces."));
+  }
+
+  static gd::MeasurementUnit CreateAngularSpeed() {
+    std::vector<gd::MeasurementUnitElement> elements;
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::degreeAngle, 1));
+    elements.push_back(
+        MeasurementUnitElement(gd::MeasurementBaseUnit::second, -1));
+    return MeasurementUnit(elements, "AngularSpeed", _("Angular speed"),
+                           _("degree per second"),
+                           _("How much angle is covered per second."));
+  }
+
+  gd::String name;              ///< The unit name.
+  gd::String label;             ///< The unit label.
+  gd::String description;       ///< The unit description.
+  gd::String elementsWithWords; ///< The unit elements put in words.
+  std::vector<gd::MeasurementUnitElement> elements; ///< The unit elements.
+};
+
+} // namespace gd
+
+#endif // GDCORE_MEASUREMENTUNIT

Core/GDCore/Project/MeasurementUnitElement.cpp

@@ -0,0 +1,15 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-present Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "MeasurementUnitElement.h"
+#include "GDCore/Serialization/SerializerElement.h"
+#include "GDCore/String.h"
+#include <vector>
+
+namespace gd {
+
+MeasurementUnitElement::~MeasurementUnitElement() {}
+
+} // namespace gd

Core/GDCore/Project/MeasurementUnitElement.h

@@ -0,0 +1,46 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-present Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#ifndef GDCORE_MEASUREMENTUNITELEMENT
+#define GDCORE_MEASUREMENTUNITELEMENT
+#include <vector>
+
+#include "GDCore/Project/MeasurementBaseUnit.h"
+#include "GDCore/String.h"
+
+namespace gd {
+class SerializerElement;
+}
+
+namespace gd {
+
+/**
+ * \brief A couple of an atomic unit of measurement and its power.
+ */
+class GD_CORE_API MeasurementUnitElement {
+public:
+  MeasurementUnitElement(const gd::MeasurementBaseUnit &baseUnit_, int power_)
+      : baseUnit(baseUnit_), power(power_) {}
+
+  virtual ~MeasurementUnitElement();
+
+  /**
+   * \brief Return the base unit.
+   */
+  const gd::MeasurementBaseUnit &GetBaseUnit() const { return baseUnit; }
+
+  /**
+   * \brief Return the power on the base unit.
+   */
+  int GetPower() const { return power; }
+
+private:
+  gd::MeasurementBaseUnit baseUnit; ///< The base unit.
+  int power;                        ///< The power on the base unit.
+};
+
+} // namespace gd
+
+#endif // GDCORE_MEASUREMENTUNITELEMENT

Core/GDCore/Project/Object.cpp

@@ -114,7 +114,7 @@ gd::Behavior* Object::AddNewBehavior(const gd::Project& project,
     if (gd::MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
       gd::LogWarning("Tried to create a behavior with an unknown type: " + type
                      + " on object " + GetName() + "!");
-    // It's probably an events-based object that was removed.
+    // It's probably an events-based behavior that was removed.
     // Create a custom behavior to preserve the properties values.
     return initializeAndAdd(
         gd::make_unique<CustomBehavior>(name, project, type));

Core/GDCore/Project/Project.cpp

@@ -22,8 +22,8 @@
 #include "GDCore/IDE/Events/UsedExtensionsFinder.h"
 #include "GDCore/IDE/PlatformManager.h"
 #include "GDCore/IDE/Project/ArbitraryResourceWorker.h"
-#include "GDCore/Project/EventsFunctionsExtension.h"
 #include "GDCore/Project/CustomObjectConfiguration.h"
+#include "GDCore/Project/EventsFunctionsExtension.h"
 #include "GDCore/Project/ExternalEvents.h"
 #include "GDCore/Project/ExternalLayout.h"
 #include "GDCore/Project/Layout.h"
@@ -347,6 +347,49 @@ void Project::RemoveExternalEvents(const gd::String& name) {
   externalEvents.erase(events);
 }
 
+void Project::MoveLayout(std::size_t oldIndex, std::size_t newIndex) {
+  if (oldIndex >= scenes.size() || newIndex >= scenes.size()) return;
+
+  std::unique_ptr<gd::Layout> scene = std::move(scenes[oldIndex]);
+  scenes.erase(scenes.begin() + oldIndex);
+  scenes.insert(scenes.begin() + newIndex, std::move(scene));
+};
+
+void Project::MoveExternalEvents(std::size_t oldIndex, std::size_t newIndex) {
+  if (oldIndex >= externalEvents.size() || newIndex >= externalEvents.size())
+    return;
+
+  std::unique_ptr<gd::ExternalEvents> externalEventsItem =
+      std::move(externalEvents[oldIndex]);
+  externalEvents.erase(externalEvents.begin() + oldIndex);
+  externalEvents.insert(externalEvents.begin() + newIndex,
+                        std::move(externalEventsItem));
+};
+
+void Project::MoveExternalLayout(std::size_t oldIndex, std::size_t newIndex) {
+  if (oldIndex >= externalLayouts.size() || newIndex >= externalLayouts.size())
+    return;
+
+  std::unique_ptr<gd::ExternalLayout> externalLayout =
+      std::move(externalLayouts[oldIndex]);
+  externalLayouts.erase(externalLayouts.begin() + oldIndex);
+  externalLayouts.insert(externalLayouts.begin() + newIndex,
+                         std::move(externalLayout));
+};
+
+void Project::MoveEventsFunctionsExtension(std::size_t oldIndex,
+                                          std::size_t newIndex) {
+  if (oldIndex >= eventsFunctionsExtensions.size() ||
+      newIndex >= eventsFunctionsExtensions.size())
+    return;
+
+  std::unique_ptr<gd::EventsFunctionsExtension> eventsFunctionsExtension =
+      std::move(eventsFunctionsExtensions[oldIndex]);
+  eventsFunctionsExtensions.erase(eventsFunctionsExtensions.begin() + oldIndex);
+  eventsFunctionsExtensions.insert(eventsFunctionsExtensions.begin() + newIndex,
+                                   std::move(eventsFunctionsExtension));
+};
+
 void Project::SwapExternalEvents(std::size_t first, std::size_t second) {
   if (first >= externalEvents.size() || second >= externalEvents.size()) return;
 

Core/GDCore/Project/Project.h

@@ -165,7 +165,7 @@ class GD_CORE_API Project : public ObjectsContainer {
    */
   const gd::String& GetPackageName() const { return packageName; }
 
-    /**
+  /**
    * \brief Change the slug of the template from which the project is created.
    */
   void SetTemplateSlug(const gd::String& templateSlug_) {
@@ -458,7 +458,7 @@ class GD_CORE_API Project : public ObjectsContainer {
 
   /**
    * Create an object of the given type with the specified name.
-   * 
+   *
    * \param type The type of the object
    * \param name The name of the object
    */
@@ -467,7 +467,7 @@ class GD_CORE_API Project : public ObjectsContainer {
 
   /**
    * Create an object configuration of the given type.
-   * 
+   *
    * \param type The type of the object
    */
   std::unique_ptr<gd::ObjectConfiguration> CreateObjectConfiguration(
@@ -525,6 +525,11 @@ class GD_CORE_API Project : public ObjectsContainer {
    */
   std::size_t GetLayoutPosition(const gd::String& name) const;
 
+  /**
+   * Change the position of the specified layout.
+   */
+  void MoveLayout(std::size_t oldIndex, std::size_t newIndex);
+
   /**
    * \brief Swap the specified layouts.
    *
@@ -628,6 +633,11 @@ class GD_CORE_API Project : public ObjectsContainer {
    */
   std::size_t GetExternalEventsPosition(const gd::String& name) const;
 
+  /**
+   * Change the position of the specified external events.
+   */
+  void MoveExternalEvents(std::size_t oldIndex, std::size_t newIndex);
+
   /**
    * \brief Swap the specified external events.
    *
@@ -702,6 +712,11 @@ class GD_CORE_API Project : public ObjectsContainer {
    */
   std::size_t GetExternalLayoutPosition(const gd::String& name) const;
 
+  /**
+   * Change the position of the specified external layout.
+   */
+  void MoveExternalLayout(std::size_t oldIndex, std::size_t newIndex);
+
   /**
    * \brief Swap the specified external layouts.
    *
@@ -791,6 +806,11 @@ class GD_CORE_API Project : public ObjectsContainer {
    */
   std::size_t GetEventsFunctionsExtensionPosition(const gd::String& name) const;
 
+  /**
+   * Change the position of the specified events function extension.
+   */
+  void MoveEventsFunctionsExtension(std::size_t oldIndex, std::size_t newIndex);
+
   /**
    * \brief Swap the specified events functions extensions.
    *

Core/GDCore/Project/PropertyDescriptor.h

@@ -8,6 +8,8 @@
 #include <vector>
 
 #include "GDCore/String.h"
+#include "GDCore/Project/MeasurementUnit.h"
+
 namespace gd {
 class SerializerElement;
 }
@@ -28,12 +30,12 @@ class GD_CORE_API PropertyDescriptor {
    * \param propertyValue The value of the property.
    */
   PropertyDescriptor(gd::String propertyValue)
-      : currentValue(propertyValue), type("string"), label(""), hidden(false) {}
+      : currentValue(propertyValue), type("string"), label(""), hidden(false), measurementUnit(gd::MeasurementUnit::GetUndefined()) {}
 
   /**
    * \brief Empty constructor creating an empty property to be displayed.
    */
-  PropertyDescriptor() : hidden(false){};
+  PropertyDescriptor() : hidden(false), measurementUnit(gd::MeasurementUnit::GetUndefined()) {};
 
   /**
    * \brief Destructor
@@ -103,12 +105,21 @@ class GD_CORE_API PropertyDescriptor {
     extraInformation.push_back(info);
     return *this;
   }
+  
+  /**
+   * \brief Change the unit of measurement of the property value.
+   */
+  PropertyDescriptor& SetMeasurementUnit(const gd::MeasurementUnit &measurementUnit_) {
+    measurementUnit = measurementUnit_;
+    return *this;
+  }
 
   const gd::String& GetValue() const { return currentValue; }
   const gd::String& GetType() const { return type; }
   const gd::String& GetLabel() const { return label; }
   const gd::String& GetDescription() const { return description; }
   const gd::String& GetGroup() const { return group; }
+  const gd::MeasurementUnit& GetMeasurementUnit() const { return measurementUnit; }
 
   const std::vector<gd::String>& GetExtraInfo() const {
     return extraInformation;
@@ -168,6 +179,7 @@ class GD_CORE_API PropertyDescriptor {
                          ///< choices, if a property is a displayed as a combo
                          ///< box.
   bool hidden;
+  gd::MeasurementUnit measurementUnit; //< The unit of measurement of the property vale.
 };
 
 }  // namespace gd

Core/GDCore/Serialization/SerializerElement.cpp

@@ -208,8 +208,7 @@ SerializerElement& SerializerElement::GetChild(
   for (size_t i = 0; i < children.size(); ++i) {
     if (children[i].second == std::shared_ptr<SerializerElement>()) continue;
 
-    if (children[i].first == name ||
-        (isArray && children[i].first.empty()) ||
+    if (children[i].first == name || (isArray && children[i].first.empty()) ||
         (!deprecatedName.empty() && children[i].first == deprecatedName)) {
       if (index == currentIndex)
         return *children[i].second;
@@ -242,8 +241,7 @@ std::size_t SerializerElement::GetChildrenCount(
   for (size_t i = 0; i < children.size(); ++i) {
     if (children[i].second == std::shared_ptr<SerializerElement>()) continue;
 
-    if (children[i].first == name ||
-        (isArray && children[i].first.empty()) ||
+    if (children[i].first == name || (isArray && children[i].first.empty()) ||
         (!deprecatedName.empty() && children[i].first == deprecatedName))
       currentIndex++;
   }
@@ -291,4 +289,31 @@ void SerializerElement::Init(const gd::SerializerElement& other) {
   deprecatedArrayOf = other.deprecatedArrayOf;
 }
 
+void SerializerElement::SetMultilineStringValue(const gd::String& value) {
+  if (value.find('\n') == gd::String::npos) {
+    SetStringValue(value);
+    return;
+  }
+
+  std::vector<gd::String> lines = value.Split('\n');
+  children.clear();
+  ConsiderAsArrayOf("");
+  for (const auto& line : lines) {
+    AddChild("").SetStringValue(line);
+  }
+}
+
+gd::String SerializerElement::GetMultilineStringValue() {
+  if (!ConsideredAsArray()) {
+    return GetValue().GetString();
+  }
+
+  gd::String value;
+  for (const auto& child : children) {
+    if (!value.empty()) value += "\n";
+    value += child.second->GetStringValue();
+  }
+  return value;
+}
+
 }  // namespace gd

Core/GDCore/Serialization/SerializerElement.h

@@ -10,6 +10,7 @@
 #include <memory>
 #include <string>
 #include <vector>
+
 #include "GDCore/Serialization/SerializerValue.h"
 #include "GDCore/String.h"
 
@@ -177,6 +178,18 @@ class GD_CORE_API SerializerElement {
    * \brief Return true if no value was set for the element.
    */
   bool IsValueUndefined() const { return valueUndefined; }
+
+  /**
+   * \brief Save the value either as a string or as an array of strings if it
+   * has line breaks.
+   */
+  void SetMultilineStringValue(const gd::String &value);
+
+  /**
+   * \brief Read the value, either represented as a string or as an array of strings,
+   * into a string.
+   */
+  gd::String GetMultilineStringValue();
   ///@}
 
   /** \name Attributes
@@ -440,7 +453,7 @@ class GD_CORE_API SerializerElement {
    * Initialize element using another element. Used by copy-ctor and assign-op.
    * Don't forget to update me if members were changed!
    */
-  void Init(const gd::SerializerElement& other);
+  void Init(const gd::SerializerElement &other);
 
   bool valueUndefined;  ///< If true, the element does not have a value.
   SerializerValue elementValue;

Core/GDCore/Vector2.h

@@ -3,8 +3,7 @@
 #ifndef GDCORE_VECTOR2_H
 #define GDCORE_VECTOR2_H
 
-namespace gd
-{
+namespace gd {
 
 ////////////////////////////////////////////////////////////
 //
@@ -12,11 +11,12 @@ namespace gd
 // Copyright (C) 2007-2016 Laurent Gomila (laurent@sfml-dev.org)
 //
 // This software is provided 'as-is', without any express or implied warranty.
-// In no event will the authors be held liable for any damages arising from the use of this software.
+// In no event will the authors be held liable for any damages arising from the
+// use of this software.
 //
 // Permission is granted to anyone to use this software for any purpose,
-// including commercial applications, and to alter it and redistribute it freely,
-// subject to the following restrictions:
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
 //
 // 1. The origin of this software must not be misrepresented;
 //    you must not claim that you wrote the original software.

Core/tests/DummyPlatform.cpp

@@ -12,6 +12,7 @@
 #include "GDCore/Project/Layout.h"
 #include "GDCore/Project/Project.h"
 #include "GDCore/Tools/Localization.h"
+#include "GDCore/Events/Builtin/StandardEvent.h"
 #include "catch.hpp"
 
 // TODO Remove these 2 classes and write the test with events based behaviors.
@@ -94,6 +95,13 @@ void SetupProjectWithDummyPlatform(gd::Project& project,
   // Don't show extension loading logs for tests (too verbose).
   platform.EnableExtensionLoadingLogs(false);
 
+  // Required for tests on event generation.
+  std::shared_ptr<gd::PlatformExtension> commonInstructionsExtension =
+      std::shared_ptr<gd::PlatformExtension>(new gd::PlatformExtension);
+  commonInstructionsExtension->SetExtensionInformation(
+      "BuiltinCommonInstructions", "instruction extension", "", "", "");
+  commonInstructionsExtension->AddEvent("Standard", "Standard event", "", "", "", std::make_shared<gd::StandardEvent>());
+
   std::shared_ptr<gd::PlatformExtension> baseObjectExtension =
       std::shared_ptr<gd::PlatformExtension>(new gd::PlatformExtension);
 
@@ -373,6 +381,7 @@ void SetupProjectWithDummyPlatform(gd::Project& project,
                        .AddUnsupportedBaseObjectCapability("effect");
   }
 
+  platform.AddExtension(commonInstructionsExtension);
   platform.AddExtension(baseObjectExtension);
   platform.AddExtension(extension);
   project.AddPlatform(platform);

Core/tests/PropertyFunctionGenerator.cpp

@@ -0,0 +1,739 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+/**
+ * @file Tests covering common features of GDevelop Core.
+ */
+#include "GDCore/IDE/PropertyFunctionGenerator.h"
+#include "DummyPlatform.h"
+#include "GDCore/Events/Builtin/StandardEvent.h"
+#include "GDCore/Extensions/Metadata/ValueTypeMetadata.h"
+#include "GDCore/Extensions/Platform.h"
+#include "GDCore/Project/EventsBasedBehavior.h"
+#include "GDCore/Project/EventsFunctionsExtension.h"
+#include "GDCore/Project/Project.h"
+#include "GDCore/String.h"
+#include "catch.hpp"
+
+namespace {
+
+gd::EventsBasedBehavior &
+CreateBehavior(gd::EventsFunctionsExtension &eventsExtension) {
+  auto &eventsBasedBehavior =
+      eventsExtension.GetEventsBasedBehaviors().InsertNew(
+          "MyEventsBasedBehavior", 0);
+  eventsBasedBehavior.SetFullName("My events based behavior");
+  eventsBasedBehavior.SetDescription("An events based behavior for test");
+  eventsBasedBehavior.SetObjectType("");
+  return eventsBasedBehavior;
+};
+
+gd::EventsBasedObject &
+CreateObject(gd::EventsFunctionsExtension &eventsExtension) {
+  auto &eventsBasedObject = eventsExtension.GetEventsBasedObjects().InsertNew(
+      "MyEventsBasedObject", 0);
+  eventsBasedObject.SetFullName("My events based object");
+  eventsBasedObject.SetDescription("An events based object for test");
+  return eventsBasedObject;
+};
+
+} // namespace
+
+TEST_CASE("PropertyFunctionGenerator", "[common]") {
+  SECTION("Can generate functions for a number property in a behavior") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Number")
+        .SetLabel("Movement angle")
+        .SetDescription("The angle of the trajectory direction.")
+        .SetGroup("Movement");
+
+    gd::PropertyFunctionGenerator::GenerateBehaviorGetterAndSetter(
+        project, extension, behavior, property, false);
+
+    REQUIRE(
+        behavior.GetEventsFunctions().HasEventsFunctionNamed("MovementAngle"));
+    REQUIRE(behavior.GetEventsFunctions().HasEventsFunctionNamed(
+        "SetMovementAngle"));
+    {
+      auto &getter =
+          behavior.GetEventsFunctions().GetEventsFunction("MovementAngle");
+
+      REQUIRE(getter.GetFunctionType() ==
+              gd::EventsFunction::ExpressionAndCondition);
+      REQUIRE(getter.GetExpressionType().GetName() == "expression");
+      REQUIRE(getter.GetFullName() == "Movement angle");
+      REQUIRE(getter.GetGroup() ==
+              "My events based behavior movement configuration");
+      REQUIRE(getter.GetDescription() ==
+              "the movement angle of the object. The "
+              "angle of the trajectory direction.");
+      REQUIRE(getter.GetSentence() == "the movement angle");
+      // Object and behavior parameters are added automatically.
+      REQUIRE(getter.GetParameters().size() == 0);
+
+      REQUIRE(getter.GetEvents().GetEventsCount() == 1);
+      REQUIRE(getter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      auto &getterEvent =
+          dynamic_cast<gd::StandardEvent &>(getter.GetEvents().GetEvent(0));
+      REQUIRE(getterEvent.GetConditions().size() == 0);
+      REQUIRE(getterEvent.GetActions().size() == 1);
+      auto &getterAction = getterEvent.GetActions().at(0);
+      REQUIRE(getterAction.GetType() == "SetReturnNumber");
+      REQUIRE(getterAction.GetParametersCount() == 1);
+      REQUIRE(getterAction.GetParameter(0).GetPlainString() ==
+              "Object.Behavior::PropertyMovementAngle()");
+    }
+    {
+      auto &setter =
+          behavior.GetEventsFunctions().GetEventsFunction("SetMovementAngle");
+
+      REQUIRE(setter.GetFunctionType() ==
+              gd::EventsFunction::ActionWithOperator);
+      REQUIRE(setter.GetGetterName() == "MovementAngle");
+      // These fields are deducted from the getter.
+      REQUIRE(setter.GetFullName() == "");
+      REQUIRE(setter.GetGroup() == "");
+      REQUIRE(setter.GetDescription() == "");
+      REQUIRE(setter.GetSentence() == "");
+      // Object and behavior parameters are added automatically.
+      REQUIRE(setter.GetParameters().size() == 0);
+
+      REQUIRE(setter.GetEvents().GetEventsCount() == 1);
+      REQUIRE(setter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      auto &setterEvent =
+          dynamic_cast<gd::StandardEvent &>(setter.GetEvents().GetEvent(0));
+      REQUIRE(setterEvent.GetConditions().size() == 0);
+      REQUIRE(setterEvent.GetActions().size() == 1);
+      auto &setterAction = setterEvent.GetActions().at(0);
+      REQUIRE(
+          setterAction.GetType() ==
+          "MyEventsExtension::MyEventsBasedBehavior::SetPropertyMovementAngle");
+      REQUIRE(setterAction.GetParametersCount() == 4);
+      REQUIRE(setterAction.GetParameter(0).GetPlainString() == "Object");
+      REQUIRE(setterAction.GetParameter(1).GetPlainString() == "Behavior");
+      REQUIRE(setterAction.GetParameter(2).GetPlainString() == "=");
+      REQUIRE(setterAction.GetParameter(3).GetPlainString() ==
+              "GetArgumentAsNumber(\"Value\")");
+    }
+  }
+
+  SECTION("Can generate functions for a choice property in a behavior") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetPropertyDescriptors().InsertNew("CollisionShape", 0);
+    property.SetType("Choice")
+        .SetLabel("Collision shape")
+        .SetLabel("Dot shape")
+        .SetDescription("The shape is used for collision.")
+        .SetGroup("Movement");
+    property.GetExtraInfo().push_back("Dot shape");
+    property.GetExtraInfo().push_back("Bounding disk");
+
+    gd::PropertyFunctionGenerator::GenerateBehaviorGetterAndSetter(
+        project, extension, behavior, property, false);
+
+    REQUIRE(
+        behavior.GetEventsFunctions().HasEventsFunctionNamed("CollisionShape"));
+    REQUIRE(behavior.GetEventsFunctions().HasEventsFunctionNamed(
+        "SetCollisionShape"));
+
+    auto &getter =
+        behavior.GetEventsFunctions().GetEventsFunction("CollisionShape");
+
+    REQUIRE(getter.GetFunctionType() ==
+            gd::EventsFunction::ExpressionAndCondition);
+    REQUIRE(getter.GetExpressionType().GetName() == "stringWithSelector");
+    REQUIRE(getter.GetExpressionType().GetExtraInfo() ==
+            "[\"Dot shape\",\"Bounding disk\"]");
+  }
+
+  SECTION("Can generate functions for a boolean property in a behavior") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property = behavior.GetPropertyDescriptors().InsertNew("Rotate", 0);
+    property.SetType("Boolean")
+        .SetLabel("Rotate object")
+        .SetDescription(
+            "The rotation follows movements done by this behavior only.")
+        .SetGroup("Movement");
+
+    gd::PropertyFunctionGenerator::GenerateBehaviorGetterAndSetter(
+        project, extension, behavior, property, false);
+
+    REQUIRE(behavior.GetEventsFunctions().HasEventsFunctionNamed("Rotate"));
+    REQUIRE(behavior.GetEventsFunctions().HasEventsFunctionNamed("SetRotate"));
+    {
+      auto &getter = behavior.GetEventsFunctions().GetEventsFunction("Rotate");
+      REQUIRE(getter.GetFunctionType() == gd::EventsFunction::Condition);
+      REQUIRE(getter.GetExpressionType().GetName() == "boolean");
+      REQUIRE(getter.GetFullName() == "Rotate object");
+      REQUIRE(getter.GetGroup() ==
+              "My events based behavior movement configuration");
+      REQUIRE(getter.GetDescription() ==
+              "Check if rotate object. The rotation follows movements done by "
+              "this behavior only.");
+      REQUIRE(getter.GetSentence() == "_PARAM0_ rotate object");
+      // Object and behavior parameters are added automatically.
+      REQUIRE(getter.GetParameters().size() == 0);
+
+      REQUIRE(getter.GetEvents().GetEventsCount() == 1);
+      REQUIRE(getter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      auto &getterEvent =
+          dynamic_cast<gd::StandardEvent &>(getter.GetEvents().GetEvent(0));
+      REQUIRE(getterEvent.GetConditions().size() == 1);
+      REQUIRE(getterEvent.GetActions().size() == 1);
+
+      auto &getterCondition = getterEvent.GetConditions().at(0);
+      REQUIRE(getterCondition.GetType() ==
+              "MyEventsExtension::MyEventsBasedBehavior::PropertyRotate");
+      REQUIRE(!getterCondition.IsInverted());
+      REQUIRE(getterCondition.GetParametersCount() == 2);
+      REQUIRE(getterCondition.GetParameter(0).GetPlainString() == "Object");
+      REQUIRE(getterCondition.GetParameter(1).GetPlainString() == "Behavior");
+
+      auto &getterAction = getterEvent.GetActions().at(0);
+      REQUIRE(getterAction.GetType() == "SetReturnBoolean");
+      REQUIRE(getterAction.GetParametersCount() == 1);
+      REQUIRE(getterAction.GetParameter(0).GetPlainString() == "True");
+    }
+    {
+      auto &setter =
+          behavior.GetEventsFunctions().GetEventsFunction("SetRotate");
+
+      REQUIRE(setter.GetFunctionType() == gd::EventsFunction::Action);
+      REQUIRE(setter.GetFullName() == "Rotate object");
+      REQUIRE(setter.GetGroup() ==
+              "My events based behavior movement configuration");
+      REQUIRE(setter.GetDescription() ==
+              "Change if rotate object. The rotation follows movements done by "
+              "this behavior only.");
+      REQUIRE(setter.GetSentence() == "_PARAM0_ rotate object: _PARAM2_");
+      // To generate the value parameter, object and behavior parameters has to
+      // be declared too.
+      REQUIRE(setter.GetParameters().size() == 3);
+      auto &objectParameter = setter.GetParameters().at(0);
+      REQUIRE(objectParameter.GetName() == "Object");
+      REQUIRE(objectParameter.GetType() == "object");
+      auto &behaviorParameter = setter.GetParameters().at(1);
+      REQUIRE(behaviorParameter.GetName() == "Behavior");
+      REQUIRE(behaviorParameter.GetType() == "behavior");
+      REQUIRE(behaviorParameter.GetExtraInfo() ==
+              "MyEventsExtension::MyEventsBasedBehavior");
+      auto &valueParameter = setter.GetParameters().at(2);
+      REQUIRE(valueParameter.GetName() == "Value");
+      REQUIRE(valueParameter.GetType() == "yesorno");
+
+      REQUIRE(setter.GetEvents().GetEventsCount() == 2);
+      REQUIRE(setter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      REQUIRE(setter.GetEvents().GetEvent(1).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+
+      auto &setterNoEvent =
+          dynamic_cast<gd::StandardEvent &>(setter.GetEvents().GetEvent(0));
+      REQUIRE(setterNoEvent.GetConditions().size() == 1);
+      REQUIRE(setterNoEvent.GetActions().size() == 1);
+
+      auto &setterNoCondition = setterNoEvent.GetConditions().at(0);
+      REQUIRE(setterNoCondition.GetType() == "GetArgumentAsBoolean");
+      REQUIRE(setterNoCondition.IsInverted());
+      REQUIRE(setterNoCondition.GetParametersCount() == 1);
+      REQUIRE(setterNoCondition.GetParameter(0).GetPlainString() ==
+              "\"Value\"");
+
+      auto &setterNoAction = setterNoEvent.GetActions().at(0);
+      REQUIRE(setterNoAction.GetType() ==
+              "MyEventsExtension::MyEventsBasedBehavior::SetPropertyRotate");
+      REQUIRE(setterNoAction.GetParametersCount() == 3);
+      REQUIRE(setterNoAction.GetParameter(0).GetPlainString() == "Object");
+      REQUIRE(setterNoAction.GetParameter(1).GetPlainString() == "Behavior");
+      REQUIRE(setterNoAction.GetParameter(2).GetPlainString() == "no");
+
+      auto &setterYesEvent =
+          dynamic_cast<gd::StandardEvent &>(setter.GetEvents().GetEvent(1));
+      REQUIRE(setterYesEvent.GetConditions().size() == 1);
+      REQUIRE(setterYesEvent.GetActions().size() == 1);
+
+      auto &setterYesCondition = setterYesEvent.GetConditions().at(0);
+      REQUIRE(setterYesCondition.GetType() == "GetArgumentAsBoolean");
+      REQUIRE(!setterYesCondition.IsInverted());
+      REQUIRE(setterYesCondition.GetParametersCount() == 1);
+      REQUIRE(setterYesCondition.GetParameter(0).GetPlainString() ==
+              "\"Value\"");
+
+      auto &setterYesAction = setterYesEvent.GetActions().at(0);
+      REQUIRE(setterYesAction.GetType() ==
+              "MyEventsExtension::MyEventsBasedBehavior::SetPropertyRotate");
+      REQUIRE(setterYesAction.GetParametersCount() == 3);
+      REQUIRE(setterYesAction.GetParameter(0).GetPlainString() == "Object");
+      REQUIRE(setterYesAction.GetParameter(1).GetPlainString() == "Behavior");
+      REQUIRE(setterYesAction.GetParameter(2).GetPlainString() == "yes");
+    }
+  }
+  SECTION("Can generate functions for a number property in an object") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &object = CreateObject(extension);
+
+    auto &property =
+        object.GetPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Number")
+        .SetLabel("Movement angle")
+        .SetDescription("The angle of the trajectory direction.")
+        .SetGroup("Movement");
+
+    gd::PropertyFunctionGenerator::GenerateObjectGetterAndSetter(
+        project, extension, object, property);
+
+    REQUIRE(
+        object.GetEventsFunctions().HasEventsFunctionNamed("MovementAngle"));
+    REQUIRE(
+        object.GetEventsFunctions().HasEventsFunctionNamed("SetMovementAngle"));
+    {
+      auto &getter =
+          object.GetEventsFunctions().GetEventsFunction("MovementAngle");
+
+      REQUIRE(getter.GetFunctionType() ==
+              gd::EventsFunction::ExpressionAndCondition);
+      REQUIRE(getter.GetExpressionType().GetName() == "expression");
+      REQUIRE(getter.GetFullName() == "Movement angle");
+      REQUIRE(getter.GetGroup() ==
+              "My events based object movement configuration");
+      REQUIRE(getter.GetDescription() ==
+              "the movement angle of the object. The "
+              "angle of the trajectory direction.");
+      REQUIRE(getter.GetSentence() == "the movement angle");
+      // Object parameter is added automatically.
+      REQUIRE(getter.GetParameters().size() == 0);
+
+      REQUIRE(getter.GetEvents().GetEventsCount() == 1);
+      REQUIRE(getter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      auto &getterEvent =
+          dynamic_cast<gd::StandardEvent &>(getter.GetEvents().GetEvent(0));
+      REQUIRE(getterEvent.GetConditions().size() == 0);
+      REQUIRE(getterEvent.GetActions().size() == 1);
+      auto &getterAction = getterEvent.GetActions().at(0);
+      REQUIRE(getterAction.GetType() == "SetReturnNumber");
+      REQUIRE(getterAction.GetParametersCount() == 1);
+      REQUIRE(getterAction.GetParameter(0).GetPlainString() ==
+              "Object.PropertyMovementAngle()");
+    }
+    {
+      auto &setter =
+          object.GetEventsFunctions().GetEventsFunction("SetMovementAngle");
+
+      REQUIRE(setter.GetFunctionType() ==
+              gd::EventsFunction::ActionWithOperator);
+      REQUIRE(setter.GetGetterName() == "MovementAngle");
+      // These fields are deducted from the getter.
+      REQUIRE(setter.GetFullName() == "");
+      REQUIRE(setter.GetGroup() == "");
+      REQUIRE(setter.GetDescription() == "");
+      REQUIRE(setter.GetSentence() == "");
+      // Object parameter is added automatically.
+      REQUIRE(setter.GetParameters().size() == 0);
+
+      REQUIRE(setter.GetEvents().GetEventsCount() == 1);
+      REQUIRE(setter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      auto &setterEvent =
+          dynamic_cast<gd::StandardEvent &>(setter.GetEvents().GetEvent(0));
+      REQUIRE(setterEvent.GetConditions().size() == 0);
+      REQUIRE(setterEvent.GetActions().size() == 1);
+      auto &setterAction = setterEvent.GetActions().at(0);
+      REQUIRE(
+          setterAction.GetType() ==
+          "MyEventsExtension::MyEventsBasedObject::SetPropertyMovementAngle");
+      REQUIRE(setterAction.GetParametersCount() == 3);
+      REQUIRE(setterAction.GetParameter(0).GetPlainString() == "Object");
+      REQUIRE(setterAction.GetParameter(1).GetPlainString() == "=");
+      REQUIRE(setterAction.GetParameter(2).GetPlainString() ==
+              "GetArgumentAsNumber(\"Value\")");
+    }
+  }
+
+  SECTION("Can generate functions for a choice property in an object") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &object = CreateObject(extension);
+
+    auto &property =
+        object.GetPropertyDescriptors().InsertNew("CollisionShape", 0);
+    property.SetType("Choice")
+        .SetLabel("Collision shape")
+        .SetLabel("Dot shape")
+        .SetDescription("The shape is used for collision.")
+        .SetGroup("Movement");
+    property.GetExtraInfo().push_back("Dot shape");
+    property.GetExtraInfo().push_back("Bounding disk");
+
+    gd::PropertyFunctionGenerator::GenerateObjectGetterAndSetter(
+        project, extension, object, property);
+
+    REQUIRE(
+        object.GetEventsFunctions().HasEventsFunctionNamed("CollisionShape"));
+    REQUIRE(object.GetEventsFunctions().HasEventsFunctionNamed(
+        "SetCollisionShape"));
+
+    auto &getter =
+        object.GetEventsFunctions().GetEventsFunction("CollisionShape");
+
+    REQUIRE(getter.GetFunctionType() ==
+            gd::EventsFunction::ExpressionAndCondition);
+    REQUIRE(getter.GetExpressionType().GetName() == "stringWithSelector");
+    REQUIRE(getter.GetExpressionType().GetExtraInfo() ==
+            "[\"Dot shape\",\"Bounding disk\"]");
+  }
+
+  SECTION("Can generate functions for a boolean property in an object") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &object = CreateObject(extension);
+
+    auto &property = object.GetPropertyDescriptors().InsertNew("Rotate", 0);
+    property.SetType("Boolean")
+        .SetLabel("Rotate object")
+        .SetDescription("The rotation follows movements done by this object.")
+        .SetGroup("Movement");
+
+    gd::PropertyFunctionGenerator::GenerateObjectGetterAndSetter(
+        project, extension, object, property);
+
+    REQUIRE(object.GetEventsFunctions().HasEventsFunctionNamed("Rotate"));
+    REQUIRE(object.GetEventsFunctions().HasEventsFunctionNamed("SetRotate"));
+    {
+      auto &getter = object.GetEventsFunctions().GetEventsFunction("Rotate");
+      REQUIRE(getter.GetFunctionType() == gd::EventsFunction::Condition);
+      REQUIRE(getter.GetExpressionType().GetName() == "boolean");
+      REQUIRE(getter.GetFullName() == "Rotate object");
+      REQUIRE(getter.GetGroup() ==
+              "My events based object movement configuration");
+      REQUIRE(getter.GetDescription() ==
+              "Check if rotate object. The rotation follows movements done by "
+              "this object.");
+      REQUIRE(getter.GetSentence() == "_PARAM0_ rotate object");
+      // The Object parameter is added automatically.
+      REQUIRE(getter.GetParameters().size() == 0);
+
+      REQUIRE(getter.GetEvents().GetEventsCount() == 1);
+      REQUIRE(getter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      auto &getterEvent =
+          dynamic_cast<gd::StandardEvent &>(getter.GetEvents().GetEvent(0));
+      REQUIRE(getterEvent.GetConditions().size() == 1);
+      REQUIRE(getterEvent.GetActions().size() == 1);
+
+      auto &getterCondition = getterEvent.GetConditions().at(0);
+      REQUIRE(getterCondition.GetType() ==
+              "MyEventsExtension::MyEventsBasedObject::PropertyRotate");
+      REQUIRE(!getterCondition.IsInverted());
+      REQUIRE(getterCondition.GetParametersCount() == 1);
+      REQUIRE(getterCondition.GetParameter(0).GetPlainString() == "Object");
+
+      auto &getterAction = getterEvent.GetActions().at(0);
+      REQUIRE(getterAction.GetType() == "SetReturnBoolean");
+      REQUIRE(getterAction.GetParametersCount() == 1);
+      REQUIRE(getterAction.GetParameter(0).GetPlainString() == "True");
+    }
+    {
+      auto &setter = object.GetEventsFunctions().GetEventsFunction("SetRotate");
+
+      REQUIRE(setter.GetFunctionType() == gd::EventsFunction::Action);
+      REQUIRE(setter.GetFullName() == "Rotate object");
+      REQUIRE(setter.GetGroup() ==
+              "My events based object movement configuration");
+      REQUIRE(setter.GetDescription() ==
+              "Change if rotate object. The rotation follows movements done by "
+              "this object.");
+      REQUIRE(setter.GetSentence() == "_PARAM0_ rotate object: _PARAM1_");
+      // To generate the value parameter, the object parameter has to
+      // be declared too.
+      REQUIRE(setter.GetParameters().size() == 2);
+      auto &objectParameter = setter.GetParameters().at(0);
+      REQUIRE(objectParameter.GetName() == "Object");
+      REQUIRE(objectParameter.GetType() == "object");
+      REQUIRE(objectParameter.GetExtraInfo() ==
+              "MyEventsExtension::MyEventsBasedObject");
+      auto &valueParameter = setter.GetParameters().at(1);
+      REQUIRE(valueParameter.GetName() == "Value");
+      REQUIRE(valueParameter.GetType() == "yesorno");
+
+      REQUIRE(setter.GetEvents().GetEventsCount() == 2);
+      REQUIRE(setter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      REQUIRE(setter.GetEvents().GetEvent(1).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+
+      auto &setterNoEvent =
+          dynamic_cast<gd::StandardEvent &>(setter.GetEvents().GetEvent(0));
+      REQUIRE(setterNoEvent.GetConditions().size() == 1);
+      REQUIRE(setterNoEvent.GetActions().size() == 1);
+
+      auto &setterNoCondition = setterNoEvent.GetConditions().at(0);
+      REQUIRE(setterNoCondition.GetType() == "GetArgumentAsBoolean");
+      REQUIRE(setterNoCondition.IsInverted());
+      REQUIRE(setterNoCondition.GetParametersCount() == 1);
+      REQUIRE(setterNoCondition.GetParameter(0).GetPlainString() ==
+              "\"Value\"");
+
+      auto &setterNoAction = setterNoEvent.GetActions().at(0);
+      REQUIRE(setterNoAction.GetType() ==
+              "MyEventsExtension::MyEventsBasedObject::SetPropertyRotate");
+      REQUIRE(setterNoAction.GetParametersCount() == 2);
+      REQUIRE(setterNoAction.GetParameter(0).GetPlainString() == "Object");
+      REQUIRE(setterNoAction.GetParameter(1).GetPlainString() == "no");
+
+      auto &setterYesEvent =
+          dynamic_cast<gd::StandardEvent &>(setter.GetEvents().GetEvent(1));
+      REQUIRE(setterYesEvent.GetConditions().size() == 1);
+      REQUIRE(setterYesEvent.GetActions().size() == 1);
+
+      auto &setterYesCondition = setterYesEvent.GetConditions().at(0);
+      REQUIRE(setterYesCondition.GetType() == "GetArgumentAsBoolean");
+      REQUIRE(!setterYesCondition.IsInverted());
+      REQUIRE(setterYesCondition.GetParametersCount() == 1);
+      REQUIRE(setterYesCondition.GetParameter(0).GetPlainString() ==
+              "\"Value\"");
+
+      auto &setterYesAction = setterYesEvent.GetActions().at(0);
+      REQUIRE(setterYesAction.GetType() ==
+              "MyEventsExtension::MyEventsBasedObject::SetPropertyRotate");
+      REQUIRE(setterYesAction.GetParametersCount() == 2);
+      REQUIRE(setterYesAction.GetParameter(0).GetPlainString() == "Object");
+      REQUIRE(setterYesAction.GetParameter(1).GetPlainString() == "yes");
+    }
+  }
+
+  SECTION("Can generate functions for a shared property") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetSharedPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Number")
+        .SetLabel("Movement angle")
+        .SetDescription("The angle of the trajectory direction.")
+        .SetGroup("Movement");
+
+    gd::PropertyFunctionGenerator::GenerateBehaviorGetterAndSetter(
+        project, extension, behavior, property, true);
+
+    REQUIRE(
+        behavior.GetEventsFunctions().HasEventsFunctionNamed("MovementAngle"));
+    REQUIRE(behavior.GetEventsFunctions().HasEventsFunctionNamed(
+        "SetMovementAngle"));
+    {
+      auto &getter =
+          behavior.GetEventsFunctions().GetEventsFunction("MovementAngle");
+      REQUIRE(getter.GetDescription() ==
+              "the movement angle. The angle of the trajectory direction. "
+              "While an object is needed, this will apply to all objects using "
+              "the behavior.");
+
+      REQUIRE(getter.GetEvents().GetEventsCount() == 1);
+      REQUIRE(getter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      auto &getterEvent =
+          dynamic_cast<gd::StandardEvent &>(getter.GetEvents().GetEvent(0));
+      REQUIRE(getterEvent.GetConditions().size() == 0);
+      REQUIRE(getterEvent.GetActions().size() == 1);
+      auto &getterAction = getterEvent.GetActions().at(0);
+      REQUIRE(getterAction.GetType() == "SetReturnNumber");
+      REQUIRE(getterAction.GetParametersCount() == 1);
+      REQUIRE(getterAction.GetParameter(0).GetPlainString() ==
+              "Object.Behavior::SharedPropertyMovementAngle()");
+    }
+    {
+      auto &setter =
+          behavior.GetEventsFunctions().GetEventsFunction("SetMovementAngle");
+
+      REQUIRE(setter.GetEvents().GetEventsCount() == 1);
+      REQUIRE(setter.GetEvents().GetEvent(0).GetType() ==
+              "BuiltinCommonInstructions::Standard");
+      auto &setterEvent =
+          dynamic_cast<gd::StandardEvent &>(setter.GetEvents().GetEvent(0));
+      REQUIRE(setterEvent.GetConditions().size() == 0);
+      REQUIRE(setterEvent.GetActions().size() == 1);
+      auto &setterAction = setterEvent.GetActions().at(0);
+      REQUIRE(setterAction.GetType() ==
+              "MyEventsExtension::MyEventsBasedBehavior::"
+              "SetSharedPropertyMovementAngle");
+    }
+  }
+
+  SECTION("Allow functions generation when there is no setter") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Number")
+        .SetLabel("Movement angle")
+        .SetDescription("The angle of the trajectory direction.")
+        .SetGroup("Movement");
+
+    REQUIRE(gd::PropertyFunctionGenerator::CanGenerateGetterAndSetter(
+        behavior, property));
+  }
+
+  SECTION("Forbid functions generation when a getter exists") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Number")
+        .SetLabel("Movement angle")
+        .SetDescription("The angle of the trajectory direction.")
+        .SetGroup("Movement");
+
+    behavior.GetEventsFunctions().InsertNewEventsFunction("MovementAngle", 0);
+
+    REQUIRE(!gd::PropertyFunctionGenerator::CanGenerateGetterAndSetter(
+        behavior, property));
+  }
+
+  SECTION("Forbid functions generation when a setter exists") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Number")
+        .SetLabel("Movement angle")
+        .SetDescription("The angle of the trajectory direction.")
+        .SetGroup("Movement");
+
+    behavior.GetEventsFunctions().InsertNewEventsFunction("SetMovementAngle",
+                                                          0);
+
+    REQUIRE(!gd::PropertyFunctionGenerator::CanGenerateGetterAndSetter(
+        behavior, property));
+  }
+
+  SECTION("Forbid functions generation when both setter and getter exist") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Number")
+        .SetLabel("Movement angle")
+        .SetDescription("The angle of the trajectory direction.")
+        .SetGroup("Movement");
+
+    behavior.GetEventsFunctions().InsertNewEventsFunction("MovementAngle", 0);
+    behavior.GetEventsFunctions().InsertNewEventsFunction("SetMovementAngle",
+                                                          0);
+
+    REQUIRE(!gd::PropertyFunctionGenerator::CanGenerateGetterAndSetter(
+        behavior, property));
+  }
+
+  SECTION("Forbid functions generation for required behavior properties") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Behavior")
+        .SetLabel("Pathfinding behavior")
+        .SetDescription("A required behavior.")
+        .SetGroup("Movement")
+        .GetExtraInfo()
+        .push_back("PlatformBehavior::PlatformerObjectBehavior");
+
+    REQUIRE(!gd::PropertyFunctionGenerator::CanGenerateGetterAndSetter(
+        behavior, property));
+  }
+
+  SECTION("Can generate functions when only the property name is filled") {
+    gd::Platform platform;
+    gd::Project project;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &extension =
+        project.InsertNewEventsFunctionsExtension("MyEventsExtension", 0);
+    auto &behavior = CreateBehavior(extension);
+
+    auto &property =
+        behavior.GetPropertyDescriptors().InsertNew("MovementAngle", 0);
+    property.SetType("Number");
+
+    gd::PropertyFunctionGenerator::GenerateBehaviorGetterAndSetter(
+        project, extension, behavior, property, false);
+
+    REQUIRE(
+        behavior.GetEventsFunctions().HasEventsFunctionNamed("MovementAngle"));
+    REQUIRE(behavior.GetEventsFunctions().HasEventsFunctionNamed(
+        "SetMovementAngle"));
+
+    auto &getter =
+        behavior.GetEventsFunctions().GetEventsFunction("MovementAngle");
+
+    REQUIRE(getter.GetFunctionType() ==
+            gd::EventsFunction::ExpressionAndCondition);
+    REQUIRE(getter.GetExpressionType().GetName() == "expression");
+    REQUIRE(getter.GetFullName() == "MovementAngle");
+    REQUIRE(getter.GetGroup() == "My events based behavior configuration");
+    REQUIRE(getter.GetDescription() == "the movementAngle of the object.");
+    REQUIRE(getter.GetSentence() == "the movementAngle");
+  }
+}

Core/tests/Serializer.cpp

@@ -81,6 +81,30 @@ TEST_CASE("SerializerElement", "[common]") {
     REQUIRE(element.GetChild(2).GetDoubleValue() == 45.6);
   }
 
+  SECTION("Multiline strings") {
+    SerializerElement element;
+
+    // A single line is saved as a string.
+    element.SetMultilineStringValue("test");
+    REQUIRE(element.GetMultilineStringValue() == "test");
+    REQUIRE(element.GetStringValue() == "test");
+
+    // A string can be read.
+    element.SetStringValue("test of\nsomething\nsaved as a string");
+    REQUIRE(element.GetMultilineStringValue() == "test of\nsomething\nsaved as a string");
+
+    // A multi lines string is saved as an array.
+    element.SetMultilineStringValue("test\nwith\nmultiple lines.");
+    REQUIRE(element.ConsideredAsArray() == true);
+    REQUIRE(element.GetChildrenCount() == 3);
+    REQUIRE(element.GetMultilineStringValue() == "test\nwith\nmultiple lines.");
+
+    element.SetMultilineStringValue("test\n\nwith\n\nmultiple lines.\n");
+    REQUIRE(element.ConsideredAsArray() == true);
+    REQUIRE(element.GetChildrenCount() == 6);
+    REQUIRE(element.GetMultilineStringValue() == "test\n\nwith\n\nmultiple lines.\n");
+  }
+
   SECTION("(Deprecated) attributes") {
     SerializerElement element;
     element.AddChild("child1").SetStringValue("value123");

Core/tests/WholeProjectRefactorer.cpp

@@ -80,6 +80,9 @@ enum TestEvent {
   BehaviorPropertyAction,
   BehaviorPropertyCondition,
   BehaviorPropertyExpression,
+  BehaviorSharedPropertyAction,
+  BehaviorSharedPropertyCondition,
+  BehaviorSharedPropertyExpression,
   BehaviorExpression,
   IllNamedBehaviorExpression,
   NoParameterBehaviorExpression,
@@ -338,6 +341,52 @@ const void SetupEvents(gd::EventsList &eventList) {
       eventList.InsertEvent(event);
     }
 
+    if (eventList.GetEventsCount() != BehaviorSharedPropertyAction) {
+      throw std::logic_error("Invalid events setup: " + std::to_string(eventList.GetEventsCount()));
+    }
+    // Create an event in the layout using "MyProperty" action
+    {
+      gd::StandardEvent event;
+      gd::Instruction instruction;
+      instruction.SetType(
+          "MyEventsExtension::MyEventsBasedBehavior::" +
+          gd::EventsBasedBehavior::GetSharedPropertyActionName("MyProperty"));
+      event.GetActions().Insert(instruction);
+      eventList.InsertEvent(event);
+    }
+
+    if (eventList.GetEventsCount() != BehaviorSharedPropertyCondition) {
+      throw std::logic_error("Invalid events setup: " + std::to_string(eventList.GetEventsCount()));
+    }
+    // Create an event in the layout using "MyProperty" condition
+    {
+      gd::StandardEvent event;
+      gd::Instruction instruction;
+      instruction.SetType(
+          "MyEventsExtension::MyEventsBasedBehavior::" +
+          gd::EventsBasedBehavior::GetSharedPropertyConditionName("MyProperty"));
+      event.GetConditions().Insert(instruction);
+      eventList.InsertEvent(event);
+    }
+
+    if (eventList.GetEventsCount() != BehaviorSharedPropertyExpression) {
+      throw std::logic_error("Invalid events setup: " + std::to_string(eventList.GetEventsCount()));
+    }
+    // Create an event in the layout using "MyProperty" expression
+    {
+      gd::StandardEvent event;
+      gd::Instruction instruction;
+      instruction.SetType("MyExtension::DoSomething");
+      instruction.SetParametersCount(1);
+      instruction.SetParameter(
+          0, gd::Expression("ObjectWithMyBehavior.MyBehavior::" +
+                            gd::EventsBasedBehavior::GetSharedPropertyExpressionName(
+                                "MyProperty") +
+                            "()"));
+      event.GetActions().Insert(instruction);
+      eventList.InsertEvent(event);
+    }
+
     if (eventList.GetEventsCount() != BehaviorExpression) {
       throw std::logic_error("Invalid events setup: " + std::to_string(eventList.GetEventsCount()));
     }
@@ -811,6 +860,11 @@ SetupProjectWithEventsFunctionExtension(gd::Project &project) {
     eventsBasedBehavior.GetPropertyDescriptors()
         .InsertNew("MyProperty", 0)
         .SetType("Number");
+    // The same name is used for the shared property to ensure there is no name
+    // collision.
+    eventsBasedBehavior.GetSharedPropertyDescriptors()
+        .InsertNew("MyProperty", 0)
+        .SetType("Number");
   }
 
   // Add a events based object
@@ -1432,6 +1486,10 @@ TEST_CASE("WholeProjectRefactorer", "[common]") {
                   eventsList->GetEvent(BehaviorPropertyAction)) ==
               "MyRenamedExtension::MyEventsBasedBehavior::"
               "SetPropertyMyProperty");
+      REQUIRE(GetEventFirstActionType(
+                  eventsList->GetEvent(BehaviorSharedPropertyAction)) ==
+              "MyRenamedExtension::MyEventsBasedBehavior::"
+              "SetSharedPropertyMyProperty");
 
       // Check events-based behavior methods have *not* been renamed in
       // expressions
@@ -1746,6 +1804,10 @@ TEST_CASE("WholeProjectRefactorer", "[common]") {
                   eventsList->GetEvent(BehaviorPropertyAction)) ==
               "MyEventsExtension::MyRenamedEventsBasedBehavior::"
               "SetPropertyMyProperty");
+      REQUIRE(GetEventFirstActionType(
+                  eventsList->GetEvent(BehaviorSharedPropertyAction)) ==
+              "MyEventsExtension::MyRenamedEventsBasedBehavior::"
+              "SetSharedPropertyMyProperty");
 
       // Check events-based behavior methods have *not* been renamed in
       // expressions
@@ -2327,8 +2389,7 @@ TEST_CASE("WholeProjectRefactorer", "[common]") {
     }
   }
 
-  SECTION(
-      "(Events based behavior) property renamed (not a required behavior)") {
+  SECTION("(Events based behavior) property renamed (not a required behavior)") {
     gd::Project project;
     gd::Platform platform;
     SetupProjectWithDummyPlatform(project, platform);
@@ -2356,6 +2417,67 @@ TEST_CASE("WholeProjectRefactorer", "[common]") {
       REQUIRE(GetEventFirstActionFirstParameterString(
                   eventsList->GetEvent(BehaviorPropertyExpression)) ==
               "ObjectWithMyBehavior.MyBehavior::PropertyMyRenamedProperty()");
+
+      // Ensure that the shared property was NOT renamed.
+      REQUIRE(GetEventFirstActionType(
+                  eventsList->GetEvent(BehaviorSharedPropertyAction)) ==
+              "MyEventsExtension::MyEventsBasedBehavior::"
+              "SetSharedPropertyMyProperty");
+
+      REQUIRE(GetEventFirstConditionType(
+                  eventsList->GetEvent(BehaviorSharedPropertyCondition)) ==
+              "MyEventsExtension::MyEventsBasedBehavior::"
+              "SharedPropertyMyProperty");
+
+      REQUIRE(GetEventFirstActionFirstParameterString(
+                  eventsList->GetEvent(BehaviorSharedPropertyExpression)) ==
+              "ObjectWithMyBehavior.MyBehavior::SharedPropertyMyProperty()");
+    }
+  }
+
+  SECTION("(Events based behavior) shared property renamed") {
+    gd::Project project;
+    gd::Platform platform;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &eventsExtension = SetupProjectWithEventsFunctionExtension(project);
+    auto &eventsBasedBehavior =
+        eventsExtension.GetEventsBasedBehaviors().Get("MyEventsBasedBehavior");
+
+    gd::WholeProjectRefactorer::RenameEventsBasedBehaviorSharedProperty(
+        project, eventsExtension, eventsBasedBehavior, "MyProperty",
+        "MyRenamedProperty");
+
+    for (auto *eventsList : GetEventsLists(project)) {
+      // Check if events-based behaviors shared property has been renamed in
+      // instructions
+      REQUIRE(GetEventFirstActionType(
+                  eventsList->GetEvent(BehaviorSharedPropertyAction)) ==
+              "MyEventsExtension::MyEventsBasedBehavior::"
+              "SetSharedPropertyMyRenamedProperty");
+
+      REQUIRE(GetEventFirstConditionType(
+                  eventsList->GetEvent(BehaviorSharedPropertyCondition)) ==
+              "MyEventsExtension::MyEventsBasedBehavior::"
+              "SharedPropertyMyRenamedProperty");
+
+      REQUIRE(GetEventFirstActionFirstParameterString(
+                  eventsList->GetEvent(BehaviorSharedPropertyExpression)) ==
+              "ObjectWithMyBehavior.MyBehavior::SharedPropertyMyRenamedProperty()");
+
+      // Ensure that the property was NOT renamed.
+      REQUIRE(GetEventFirstActionType(
+                  eventsList->GetEvent(BehaviorPropertyAction)) ==
+              "MyEventsExtension::MyEventsBasedBehavior::"
+              "SetPropertyMyProperty");
+
+      REQUIRE(GetEventFirstConditionType(
+                  eventsList->GetEvent(BehaviorPropertyCondition)) ==
+              "MyEventsExtension::MyEventsBasedBehavior::"
+              "PropertyMyProperty");
+
+      REQUIRE(GetEventFirstActionFirstParameterString(
+                  eventsList->GetEvent(BehaviorPropertyExpression)) ==
+              "ObjectWithMyBehavior.MyBehavior::PropertyMyProperty()");
     }
   }
 

Extensions/BBText/JsExtension.js

@@ -19,6 +19,8 @@
 import { type ObjectsRenderingService, type ObjectsEditorService } from '../JsExtensionTypes.flow.js'
 */
 
+const stringifyOptions = (options) => '["' + options.join('","') + '"]';
+
 module.exports = {
   createExtension: function (
     _ /*: (string) => string */,
@@ -35,8 +37,9 @@ module.exports = {
       )
       .setExtensionHelpPath('/objects/bbtext')
       .setCategory('User interface');
-    extension.addInstructionOrExpressionGroupMetadata(_("BBCode Text Object"))
-        .setIcon("JsPlatform/Extensions/bbcode32.png");
+    extension
+      .addInstructionOrExpressionGroupMetadata(_('BBCode Text Object'))
+      .setIcon('JsPlatform/Extensions/bbcode32.png');
 
     var objectBBText = new gd.ObjectJsImplementation();
     // $FlowExpectedError
@@ -195,7 +198,10 @@ module.exports = {
             .addParameter('object', objectName, objectName, false)
             .getCodeExtraInformation()
             .setFunctionName(`get${property.functionName}`);
-        } else if (parameterType === 'string') {
+        } else if (
+          parameterType === 'string' ||
+          parameterType === 'stringWithSelector'
+        ) {
           gdObject
             .addStrExpression(
               `Get${property.functionName}`,
@@ -210,13 +216,24 @@ module.exports = {
         }
 
         // Add the action
-        if (parameterType === 'number' || parameterType === 'string') {
-          const expressionType =
-            parameterType === 'number' ? 'expression' : 'string';
+        if (
+          parameterType === 'number' ||
+          parameterType === 'string' ||
+          parameterType === 'stringWithSelector'
+        ) {
+          const parameterOptions =
+            gd.ParameterOptions.makeNewOptions().setDescription(
+              property.paramLabel
+            );
+          if (property.options) {
+            parameterOptions.setTypeExtraInfo(
+              stringifyOptions(property.options)
+            );
+          }
           gdObject
             .addAction(
               `Set${property.functionName}`,
-              property.paramLabel,
+              property.instructionLabel,
               property.actionDescription,
               property.actionSentence,
               '',
@@ -224,7 +241,7 @@ module.exports = {
               property.iconPath
             )
             .addParameter('object', objectName, objectName, false)
-            .useStandardOperatorParameters(parameterType)
+            .useStandardOperatorParameters(parameterType, parameterOptions)
             .getCodeExtraInformation()
             .setFunctionName(`set${property.functionName}`)
             .setGetter(`get${property.functionName}`);
@@ -232,7 +249,7 @@ module.exports = {
           gdObject
             .addAction(
               `Set${property.functionName}`,
-              property.paramLabel,
+              property.instructionLabel,
               property.actionDescription,
               property.actionSentence,
               '',
@@ -243,9 +260,7 @@ module.exports = {
             .addParameter(
               parameterType,
               property.paramLabel,
-              property.options
-                ? '["' + property.options.join('", "') + '"]'
-                : '',
+              '', // There should not be options for the property if it's not a stringWithSelector
               false
             )
             .getCodeExtraInformation()
@@ -254,13 +269,24 @@ module.exports = {
         }
 
         // Add condition
-        if (parameterType === 'string' || parameterType === 'number') {
-          const propExpressionType =
-            parameterType === 'string' ? 'string' : 'expression';
+        if (
+          parameterType === 'string' ||
+          parameterType === 'number' ||
+          parameterType === 'stringWithSelector'
+        ) {
+          const parameterOptions =
+            gd.ParameterOptions.makeNewOptions().setDescription(
+              property.paramLabel
+            );
+          if (property.options) {
+            parameterOptions.setTypeExtraInfo(
+              stringifyOptions(property.options)
+            );
+          }
           gdObject
             .addCondition(
               `Is${property.functionName}`,
-              property.paramLabel,
+              property.instructionLabel,
               property.conditionDescription,
               property.conditionSentence,
               '',
@@ -268,14 +294,17 @@ module.exports = {
               property.iconPath
             )
             .addParameter('object', objectName, objectName, false)
-            .useStandardRelationalOperatorParameters(parameterType)
+            .useStandardRelationalOperatorParameters(
+              parameterType,
+              parameterOptions
+            )
             .getCodeExtraInformation()
             .setFunctionName(`get${property.functionName}`);
         } else if (parameterType === 'yesorno') {
           gdObject
             .addCondition(
               `Is${property.functionName}`,
-              property.paramLabel,
+              property.instructionLabel,
               property.conditionDescription,
               property.conditionSentence,
               '',
@@ -294,7 +323,8 @@ module.exports = {
         functionName: 'BBText',
         iconPath: 'res/actions/text24_black.png',
         type: 'string',
-        paramLabel: _('BBCode text'),
+        instructionLabel: _('BBCode text'),
+        paramLabel: _('Text'),
         conditionDescription: _('Compare the value of the BBCode text.'),
         conditionSentence: _('the BBCode text'),
         actionDescription: _('Set BBCode text'),
@@ -306,7 +336,8 @@ module.exports = {
         functionName: 'Color',
         iconPath: 'res/actions/color24.png',
         type: 'color',
-        paramLabel: _('Color'),
+        instructionLabel: _('Color'),
+        paramLabel: _('Color (R;G;B)'),
         conditionDescription: '', // No conditions for a "color" property
         conditionSentence: '', // No conditions for a "color" property
         actionDescription: _('Set base color'),
@@ -318,7 +349,8 @@ module.exports = {
         functionName: 'Opacity',
         iconPath: 'res/actions/opacity24.png',
         type: 'number',
-        paramLabel: _('Opacity'),
+        instructionLabel: _('Opacity'),
+        paramLabel: _('Opacity (0-255)'),
         conditionDescription: _(
           'Compare the value of the base opacity of the text.'
         ),
@@ -332,6 +364,7 @@ module.exports = {
         functionName: 'FontSize',
         iconPath: 'res/actions/characterSize24.png',
         type: 'number',
+        instructionLabel: _('Font size'),
         paramLabel: _('Font size'),
         conditionDescription: _('Compare the base font size of the text.'),
         conditionSentence: _('the base font size'),
@@ -344,6 +377,7 @@ module.exports = {
         functionName: 'FontFamily',
         iconPath: 'res/actions/font24.png',
         type: 'string',
+        instructionLabel: _('Font family'),
         paramLabel: _('Font family'),
         conditionDescription: _('Compare the value of font family'),
         conditionSentence: _('the base font family'),
@@ -356,6 +390,7 @@ module.exports = {
         functionName: 'Alignment',
         iconPath: 'res/actions/textAlign24.png',
         type: 'stringWithSelector',
+        instructionLabel: _('Alignment'),
         paramLabel: _('Alignment'),
         options: ['left', 'right', 'center'],
         conditionDescription: _('Check the current text alignment.'),
@@ -369,6 +404,7 @@ module.exports = {
         functionName: 'WordWrap',
         iconPath: 'res/actions/scaleWidth24_black.png',
         type: 'boolean',
+        instructionLabel: _('Word wrap'),
         paramLabel: _('Word wrap'),
         conditionDescription: _('Check if word wrap is enabled.'),
         conditionSentence: _('Word wrap is enabled'),
@@ -381,6 +417,7 @@ module.exports = {
         functionName: 'WrappingWidth',
         iconPath: 'res/actions/scaleWidth24_black.png',
         type: 'number',
+        instructionLabel: _('Wrapping width'),
         paramLabel: _('Wrapping width'),
         conditionDescription: _(
           'Compare the width, in pixels, after which the text is wrapped on next line.'
@@ -510,8 +547,7 @@ module.exports = {
      * This is called to update the PIXI object on the scene editor
      */
     RenderedBBTextInstance.prototype.update = function () {
-      const properties = this._associatedObjectConfiguration
-        .getProperties();
+      const properties = this._associatedObjectConfiguration.getProperties();
 
       const rawText = properties.get('text').getValue();
       if (rawText !== this._pixiObject.text) {

Extensions/BitmapText/JsExtension.js

@@ -187,7 +187,7 @@ module.exports = {
         'res/conditions/text24_black.png'
       )
       .addParameter('object', _('Bitmap text'), 'BitmapTextObject', false)
-      .useStandardParameters('string')
+      .useStandardParameters('string', gd.ParameterOptions.makeNewOptions())
       .setFunctionName('setText')
       .setGetter('getText');
 
@@ -202,7 +202,12 @@ module.exports = {
         'res/conditions/opacity24.png'
       )
       .addParameter('object', _('Bitmap text'), 'BitmapTextObject', false)
-      .useStandardParameters('number')
+      .useStandardParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Opacity (0-255)')
+        )
+      )
       .setFunctionName('setOpacity')
       .setGetter('getOpacity');
 
@@ -217,7 +222,7 @@ module.exports = {
         'res/conditions/characterSize24.png'
       )
       .addParameter('object', _('Bitmap text'), 'BitmapTextObject', false)
-      .useStandardParameters('number')
+      .useStandardParameters('number', gd.ParameterOptions.makeNewOptions())
       .setFunctionName('getFontSize');
 
     object
@@ -231,7 +236,12 @@ module.exports = {
         'res/actions/scale24_black.png'
       )
       .addParameter('object', _('Bitmap text'), 'BitmapTextObject', false)
-      .useStandardParameters('number')
+      .useStandardParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Scale (1 by default)')
+        )
+      )
       .setFunctionName('setScale')
       .setGetter('getScale');
 
@@ -246,7 +256,7 @@ module.exports = {
         'res/conditions/font24.png'
       )
       .addParameter('object', _('Bitmap text'), 'BitmapTextObject', false)
-      .useStandardParameters('string')
+      .useStandardParameters('string', gd.ParameterOptions.makeNewOptions())
       .setFunctionName('getFontName');
 
     object
@@ -304,7 +314,12 @@ module.exports = {
         'res/actions/textAlign24.png'
       )
       .addParameter('object', _('Bitmap text'), 'BitmapTextObject', false)
-      .useStandardParameters('string')
+      .useStandardParameters(
+        'string',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Alignment ("left", "right" or "center")')
+        )
+      )
       .setFunctionName('getAlignment');
 
     object
@@ -367,7 +382,7 @@ module.exports = {
         'res/actions/scaleWidth24_black.png'
       )
       .addParameter('object', _('Bitmap text'), 'BitmapTextObject', false)
-      .useStandardParameters('number')
+      .useStandardParameters('number', gd.ParameterOptions.makeNewOptions())
       .setFunctionName('setWrappingWidth')
       .setGetter('getWrappingWidth');
 

Extensions/DestroyOutsideBehavior/DestroyOutsideBehavior.cpp

@@ -25,6 +25,7 @@ DestroyOutsideBehavior::GetProperties(
       .SetValue(gd::String::From(
           behaviorContent.GetDoubleAttribute("extraBorder", 0)))
       .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
       .SetLabel(_("Margin before deleting the object, in pixels"));
 
   return properties;

Extensions/DestroyOutsideBehavior/Extension.cpp

@@ -45,7 +45,8 @@ void DeclareDestroyOutsideBehaviorExtension(gd::PlatformExtension& extension) {
                    "CppPlatform/Extensions/destroyoutsideicon16.png")
       .AddParameter("object", _("Object"))
       .AddParameter("behavior", _("Behavior"), "DestroyOutside")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced()
       .SetFunctionName("GetExtraBorder");
 
@@ -59,7 +60,8 @@ void DeclareDestroyOutsideBehaviorExtension(gd::PlatformExtension& extension) {
                 "CppPlatform/Extensions/destroyoutsideicon16.png")
       .AddParameter("object", _("Object"))
       .AddParameter("behavior", _("Behavior"), "DestroyOutside")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced()
       .SetFunctionName("SetExtraBorder")
       .SetGetter("GetExtraBorder");

Extensions/ExampleJsExtension/dummywithshareddataruntimebehavior.ts

@@ -15,9 +15,9 @@ namespace gdjs {
       this._textToSet = behaviorData.property1;
 
       // You can also access to the shared data:
-      const sharedData = instanceContainer
-        .getScene()
-        .getInitialSharedDataForBehavior(behaviorData.name);
+      const sharedData = instanceContainer.getInitialSharedDataForBehavior(
+        behaviorData.name
+      );
       this._textToSet = (sharedData as any).sharedProperty1;
 
       // You can also run arbitrary code at the creation of the behavior:

Extensions/Inventory/Extension.cpp

@@ -64,7 +64,8 @@ void DeclareInventoryExtension(gd::PlatformExtension& extension) {
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("string", _("Inventory name"))
       .AddParameter("string", _("Item name"))
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions())
       .SetFunctionName("InventoryTools::Count");
 
   extension

Extensions/PanelSpriteObject/Extension.cpp

@@ -24,7 +24,9 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
           "Victor Levasseur and Florian Rival",
           "Open source (MIT License)")
       .SetExtensionHelpPath("/objects/panel_sprite");
-  extension.AddInstructionOrExpressionGroupMetadata(_("Panel Sprite (9-patch) Object"))
+  extension
+      .AddInstructionOrExpressionGroupMetadata(
+          _("Panel Sprite (9-patch) Object"))
       .SetIcon("CppPlatform/Extensions/PanelSpriteIcon.png");
 
   gd::ObjectMetadata& obj =
@@ -48,7 +50,10 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
                    "res/conditions/opacity.png")
 
       .AddParameter("object", _("Object"), "PanelSprite")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Opacity to compare to (0-255)")));
 
   obj.AddAction(
          "SetOpacity",
@@ -61,7 +66,10 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
          "res/actions/opacity.png")
 
       .AddParameter("object", _("Object"), "PanelSprite")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Opacity (0-255)")));
 
   obj.AddExpression("Opacity",
                     _("Opacity"),
@@ -91,7 +99,8 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
                 "res/actions/scaleWidth_black.png")
 
       .AddParameter("object", _("Object"), "PanelSprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions())
       .SetFunctionName("SetWidth")
       .SetGetter("GetWidth");
 
@@ -104,7 +113,8 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
                    "res/conditions/scaleWidth_black.png")
 
       .AddParameter("object", _("Object"), "PanelSprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions())
       .SetFunctionName("GetWidth");
 
   obj.AddAction("Height",
@@ -116,7 +126,8 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
                 "res/actions/scaleHeight_black.png")
 
       .AddParameter("object", _("Object"), "PanelSprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions())
       .SetFunctionName("SetHeight")
       .SetGetter("GetHeight");
 
@@ -129,7 +140,8 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
                    "res/conditions/scaleHeight_black.png")
 
       .AddParameter("object", _("Object"), "PanelSprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions())
       .SetFunctionName("SetHeight")
       .SetGetter("GetHeight");
 
@@ -143,7 +155,10 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
 
       .SetHidden()  // Deprecated
       .AddParameter("object", _("Object"), "PanelSprite")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle (in degrees)")))
       .SetFunctionName("SetAngle")
       .SetGetter("GetAngle");
 
@@ -157,7 +172,10 @@ void DeclarePanelSpriteObjectExtension(gd::PlatformExtension& extension) {
 
       .SetHidden()  // Deprecated
       .AddParameter("object", _("Object"), "PanelSprite")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle to compare to (in degrees)")))
       .SetFunctionName("SetAngle")
       .SetGetter("GetAngle");
 

Extensions/PanelSpriteObject/PanelSpriteObject.h

@@ -8,12 +8,13 @@ This project is released under the MIT License.
 #ifndef PANELSPRITEOBJECT_H
 #define PANELSPRITEOBJECT_H
 #include <memory>
+
 #include "GDCore/Project/Object.h"
 namespace gd {
 class ObjectConfiguration;
 class InitialInstance;
 class Project;
-}
+}  // namespace gd
 
 /**
  * PanelSprite Object
@@ -23,37 +24,38 @@ class GD_EXTENSION_API PanelSpriteObject : public gd::ObjectConfiguration {
   PanelSpriteObject();
   virtual ~PanelSpriteObject();
   virtual std::unique_ptr<gd::ObjectConfiguration> Clone() const {
-    return std::unique_ptr<gd::ObjectConfiguration>(new PanelSpriteObject(*this));
+    return std::unique_ptr<gd::ObjectConfiguration>(
+        new PanelSpriteObject(*this));
   }
 
 #if defined(GD_IDE_ONLY)
   virtual void ExposeResources(gd::ArbitraryResourceWorker &worker);
 #endif
 
-  float GetWidth() const { return width; };
-  float GetHeight() const { return height; };
+  double GetWidth() const { return width; };
+  double GetHeight() const { return height; };
 
-  void SetWidth(float newWidth) {
+  void SetWidth(double newWidth) {
     width = newWidth >= (leftMargin + rightMargin) ? newWidth
                                                    : (leftMargin + rightMargin);
   };
-  void SetHeight(float newHeight) {
+  void SetHeight(double newHeight) {
     height = newHeight >= (topMargin + bottomMargin)
                  ? newHeight
                  : (topMargin + bottomMargin);
   };
 
-  float GetLeftMargin() const { return leftMargin; };
-  void SetLeftMargin(float newMargin) { leftMargin = newMargin; };
+  double GetLeftMargin() const { return leftMargin; };
+  void SetLeftMargin(double newMargin) { leftMargin = newMargin; };
 
-  float GetTopMargin() const { return topMargin; };
-  void SetTopMargin(float newMargin) { topMargin = newMargin; };
+  double GetTopMargin() const { return topMargin; };
+  void SetTopMargin(double newMargin) { topMargin = newMargin; };
 
-  float GetRightMargin() const { return rightMargin; };
-  void SetRightMargin(float newMargin) { rightMargin = newMargin; };
+  double GetRightMargin() const { return rightMargin; };
+  void SetRightMargin(double newMargin) { rightMargin = newMargin; };
 
-  float GetBottomMargin() const { return bottomMargin; };
-  void SetBottomMargin(float newMargin) { bottomMargin = newMargin; };
+  double GetBottomMargin() const { return bottomMargin; };
+  void SetBottomMargin(double newMargin) { bottomMargin = newMargin; };
 
   bool IsTiled() const { return tiled; };
   void SetTiled(bool enable = true) { tiled = enable; };
@@ -72,13 +74,13 @@ class GD_EXTENSION_API PanelSpriteObject : public gd::ObjectConfiguration {
   virtual void DoSerializeTo(gd::SerializerElement &element) const;
 #endif
 
-  float width;
-  float height;
+  double width;
+  double height;
 
-  float leftMargin;
-  float topMargin;
-  float rightMargin;
-  float bottomMargin;
+  double leftMargin;
+  double topMargin;
+  double rightMargin;
+  double bottomMargin;
 
   bool tiled;
 };

Extensions/PanelSpriteObject/panelspriteruntimeobject-pixi-renderer.ts

@@ -33,27 +33,24 @@ namespace gdjs {
       const StretchedSprite = !tiled ? PIXI.Sprite : PIXI.TilingSprite;
       this._spritesContainer = new PIXI.Container();
       this._wrapperContainer = new PIXI.Container();
-      // @ts-ignore
-      this._centerSprite = new StretchedSprite(new PIXI.Texture(texture));
+      this._centerSprite = new StretchedSprite(
+        new PIXI.Texture(texture.baseTexture)
+      );
       this._borderSprites = [
-        // @ts-ignore
-        new StretchedSprite(new PIXI.Texture(texture)),
-        //Right
+        // Right
+        new StretchedSprite(new PIXI.Texture(texture.baseTexture)),
+        // Top-Right
         new PIXI.Sprite(texture),
-        //Top-Right
-        // @ts-ignore
-        new StretchedSprite(new PIXI.Texture(texture)),
-        //Top
+        // Top
+        new StretchedSprite(new PIXI.Texture(texture.baseTexture)),
+        // Top-Left
         new PIXI.Sprite(texture),
-        //Top-Left
-        // @ts-ignore
-        new StretchedSprite(new PIXI.Texture(texture)),
-        //Left
+        // Left
+        new StretchedSprite(new PIXI.Texture(texture.baseTexture)),
+        // Bottom-Left
         new PIXI.Sprite(texture),
-        //Bottom-Left
-        // @ts-ignore
-        new StretchedSprite(new PIXI.Texture(texture)),
-        //Bottom
+        // Bottom
+        new StretchedSprite(new PIXI.Texture(texture.baseTexture)),
         new PIXI.Sprite(texture),
       ];
 
@@ -77,11 +74,19 @@ namespace gdjs {
 
     ensureUpToDate() {
       if (this._spritesContainer.visible && this._wasRendered) {
-        // Cache the rendered sprites as a bitmap to speed up rendering when
-        // lots of panel sprites are on the scene.
-        // Sadly, because of this, we need a wrapper container to workaround
-        // a PixiJS issue with alpha (see updateOpacity).
-        this._spritesContainer.cacheAsBitmap = true;
+        // PIXI uses PIXI.SCALE_MODES.LINEAR for the cached image:
+        // this._spritesContainer._cacheData.sprite._texture.baseTexture.scaleMode
+        // There seems to be no way to configure this so the optimization is disabled.
+        if (
+          this._centerSprite.texture.baseTexture.scaleMode !==
+          PIXI.SCALE_MODES.NEAREST
+        ) {
+          // Cache the rendered sprites as a bitmap to speed up rendering when
+          // lots of panel sprites are on the scene.
+          // Sadly, because of this, we need a wrapper container to workaround
+          // a PixiJS issue with alpha (see updateOpacity).
+          this._spritesContainer.cacheAsBitmap = true;
+        }
       }
       this._wasRendered = true;
     }
@@ -193,14 +198,10 @@ namespace gdjs {
       instanceContainer: gdjs.RuntimeInstanceContainer
     ): void {
       const obj = this._object;
-      // @ts-ignore
       const texture = instanceContainer
         .getGame()
         .getImageManager()
-        .getPIXITexture(textureName) as PIXI.BaseTexture<
-        PIXI.Resource,
-        PIXI.IAutoDetectOptions
-      >;
+        .getPIXITexture(textureName).baseTexture;
       this._textureWidth = texture.width;
       this._textureHeight = texture.height;
 

Extensions/ParticleSystem/ExtensionSubDeclaration1.cpp

@@ -5,10 +5,9 @@ Copyright (c) 2010-2016 Florian Rival (Florian.Rival@gmail.com)
 This project is released under the MIT License.
 */
 
+#include "Extension.h"
 #include "GDCore/Extensions/PlatformExtension.h"
 #include "GDCore/Tools/Localization.h"
-
-#include "Extension.h"
 #include "ParticleEmitterObject.h"
 
 /**
@@ -23,7 +22,8 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("EmitterForceMax",
                 _("Emission maximal force"),
@@ -33,7 +33,8 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("EmitterAngle",
                 _("Emission angle"),
@@ -43,7 +44,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle (in degrees)")));
 
   obj.AddCondition("EmitterAngle",
                    _("Emission angle"),
@@ -53,7 +57,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle to compare to (in degrees)")));
 
   obj.AddAction("EmitterAngleA",
                 _("Emission angle 1"),
@@ -63,8 +70,9 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number")
-      .SetHidden(); // Angle A is not used.
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions())
+      .SetHidden();  // Angle A is not used.
 
   obj.AddCondition("EmitterAngleA",
                    _("Emission angle 1"),
@@ -74,8 +82,9 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number")
-      .SetHidden(); // Angle A is not used.
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions())
+      .SetHidden();  // Angle A is not used.
 
   obj.AddAction("EmitterAngleB",
                 _("Emission angle 2"),
@@ -85,8 +94,9 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number")
-      .SetHidden(); // Angle B is the same as cone spray angle
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions())
+      .SetHidden();  // Angle B is the same as cone spray angle
 
   obj.AddCondition("EmitterAngleB",
                    _("Emission angle 2"),
@@ -96,8 +106,9 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number")
-      .SetHidden(); // Angle B is the same as cone spray angle
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions())
+      .SetHidden();  // Angle B is the same as cone spray angle
 
   obj.AddAction(
          "ConeSprayAngle",
@@ -108,7 +119,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
          "CppPlatform/Extensions/particleSystemicon24.png",
          "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle (in degrees)")));
 
   obj.AddCondition("ConeSprayAngle",
                    _("Angle of the spray cone"),
@@ -118,7 +132,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle to compare to (in degrees)")));
 
   obj.AddAction("ZoneRadius",
                 _("Creation radius"),
@@ -129,7 +146,8 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddCondition("ZoneRadius",
                    _("Creation radius"),
@@ -139,19 +157,23 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction(
          "ParticleLifeTimeMin",
          _("Minimum lifetime"),
-         _("Modify particles minimum lifetime.Particles have to be recreated "
+         _("Modify particles minimum lifetime. Particles have to be recreated "
            "in order to take changes in account."),
          _("the minimum lifetime of particles"),
          _("Common"),
          "CppPlatform/Extensions/particleSystemicon24.png",
          "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Duration (in seconds)")));
 
   obj.AddCondition(
          "ParticleLifeTimeMin",
@@ -162,7 +184,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
          "CppPlatform/Extensions/particleSystemicon24.png",
          "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Duration to compare to (in seconds)")));
 
   obj.AddAction(
          "ParticleLifeTimeMax",
@@ -174,7 +199,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
          "CppPlatform/Extensions/particleSystemicon24.png",
          "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Duration (in seconds)")));
 
   obj.AddCondition(
          "ParticleLifeTimeMax",
@@ -185,7 +213,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
          "CppPlatform/Extensions/particleSystemicon24.png",
          "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Duration to compare to (in seconds)")));
 
   obj.AddAction("ParticleGravityX",
                 _("Gravity value on X axis"),
@@ -195,7 +226,8 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddCondition(
          "ParticleGravityX",
@@ -206,7 +238,8 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
          "CppPlatform/Extensions/particleSystemicon24.png",
          "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("ParticleGravityY",
                 _("Gravity value on Y axis"),
@@ -216,7 +249,8 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddCondition(
          "ParticleGravityY",
@@ -227,7 +261,8 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
          "CppPlatform/Extensions/particleSystemicon24.png",
          "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("ParticleGravityAngle",
                 _("Gravity angle"),
@@ -237,7 +272,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle (in degrees)")));
 
   obj.AddCondition("ParticleGravityAngle",
                    _("Gravity angle"),
@@ -247,7 +285,10 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angle to compare to (in degrees)")));
 
   obj.AddAction("ParticleGravityLength",
                 _("Gravity"),
@@ -257,7 +298,8 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddCondition("ParticleGravityLength",
                    _("Gravity"),
@@ -267,11 +309,13 @@ void ExtensionSubDeclaration1(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("StartEmission",
                 _("Start emission"),
-                _("Refill tank (if not infinite) and start emission of the particles."),
+                _("Refill tank (if not infinite) and start emission of the "
+                  "particles."),
                 _("Start emission of _PARAM0_"),
                 _("Common"),
                 "CppPlatform/Extensions/particleSystemicon24.png",

Extensions/ParticleSystem/ExtensionSubDeclaration2.cpp

@@ -5,11 +5,10 @@ Copyright (c) 2010-2016 Florian Rival (Florian.Rival@gmail.com)
 This project is released under the MIT License.
 */
 
+#include "Extension.h"
+#include "GDCore/Extensions/Metadata/MultipleInstructionMetadata.h"
 #include "GDCore/Extensions/PlatformExtension.h"
 #include "GDCore/Tools/Localization.h"
-#include "GDCore/Extensions/Metadata/MultipleInstructionMetadata.h"
-
-#include "Extension.h"
 #include "ParticleEmitterObject.h"
 
 /**
@@ -36,137 +35,161 @@ void ExtensionSubDeclaration2(gd::ObjectMetadata& obj) {
       .AddParameter("object", _("Object"), "ParticleEmitter")
       .AddParameter("color", _("End color"));
 
-  obj.AddAction(
-         "ParticleRed1",
-         _("Start color red component"),
-         _("Modify the start color red component."),
-         _("the start color red component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddAction("ParticleRed1",
+                _("Start color red component"),
+                _("Modify the start color red component."),
+                _("the start color red component"),
+                _("Advanced"),
+                "CppPlatform/Extensions/particleSystemicon24.png",
+                "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value (0-255)")));
 
-  obj.AddCondition(
-         "ParticleRed1",
-         _("Start color red component"),
-         _("Compare the start color red component."),
-         _("the start color red component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("ParticleRed1",
+                   _("Start color red component"),
+                   _("Compare the start color red component."),
+                   _("the start color red component"),
+                   _("Advanced"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value to compare to (0-255)")));
 
-  obj.AddAction(
-         "ParticleRed2",
-         _("End color red component"),
-         _("Modify the end color red component."),
-         _("the end color red component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddAction("ParticleRed2",
+                _("End color red component"),
+                _("Modify the end color red component."),
+                _("the end color red component"),
+                _("Advanced"),
+                "CppPlatform/Extensions/particleSystemicon24.png",
+                "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value (0-255)")));
 
-  obj.AddCondition(
-         "ParticleRed2",
-         _("End color red component"),
-         _("Compare the end color red component."),
-         _("the end color red component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("ParticleRed2",
+                   _("End color red component"),
+                   _("Compare the end color red component."),
+                   _("the end color red component"),
+                   _("Advanced"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value to compare to (0-255)")));
 
-  obj.AddAction(
-         "ParticleBlue1",
-         _("Start color blue component"),
-         _("Modify the start color blue component."),
-         _("the start color blue component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddAction("ParticleBlue1",
+                _("Start color blue component"),
+                _("Modify the start color blue component."),
+                _("the start color blue component"),
+                _("Advanced"),
+                "CppPlatform/Extensions/particleSystemicon24.png",
+                "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value (0-255)")));
 
-  obj.AddCondition(
-         "ParticleBlue1",
-         _("Start color blue component"),
-         _("Compare the start color blue component."),
-         _("the start color blue component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("ParticleBlue1",
+                   _("Start color blue component"),
+                   _("Compare the start color blue component."),
+                   _("the start color blue component"),
+                   _("Advanced"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value to compare to (0-255)")));
 
-  obj.AddAction(
-         "ParticleBlue2",
-         _("End color blue component"),
-         _("Modify the end color blue component."),
-         _("the end color blue component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddAction("ParticleBlue2",
+                _("End color blue component"),
+                _("Modify the end color blue component."),
+                _("the end color blue component"),
+                _("Advanced"),
+                "CppPlatform/Extensions/particleSystemicon24.png",
+                "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value (0-255)")));
 
-  obj.AddCondition(
-         "ParticleBlue2",
-         _("End color blue component"),
-         _("Compare the end color blue component."),
-         _("the end color blue component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("ParticleBlue2",
+                   _("End color blue component"),
+                   _("Compare the end color blue component."),
+                   _("the end color blue component"),
+                   _("Advanced"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value to compare to (0-255)")));
 
-  obj.AddAction(
-         "ParticleGreen1",
-         _("Start color green component"),
-         _("Modify the start color green component."),
-         _("the start color green component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddAction("ParticleGreen1",
+                _("Start color green component"),
+                _("Modify the start color green component."),
+                _("the start color green component"),
+                _("Advanced"),
+                "CppPlatform/Extensions/particleSystemicon24.png",
+                "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value (0-255)")));
 
-  obj.AddCondition(
-         "ParticleGreen1",
-         _("Start color green component"),
-         _("Compare the start color green component."),
-         _("the start color green component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("ParticleGreen1",
+                   _("Start color green component"),
+                   _("Compare the start color green component."),
+                   _("the start color green component"),
+                   _("Advanced"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value to compare to (0-255)")));
 
-  obj.AddAction(
-         "ParticleGreen2",
-         _("End color green component"),
-         _("Modify the end color green component."),
-         _("the end color green component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddAction("ParticleGreen2",
+                _("End color green component"),
+                _("Modify the end color green component."),
+                _("the end color green component"),
+                _("Advanced"),
+                "CppPlatform/Extensions/particleSystemicon24.png",
+                "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value (0-255)")));
 
-  obj.AddCondition(
-         "ParticleGreen2",
-         _("End color green component"),
-         _("Compare the end color green component."),
-         _("the end color green component"),
-         _("Advanced"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("ParticleGreen2",
+                   _("End color green component"),
+                   _("Compare the end color green component."),
+                   _("the end color green component"),
+                   _("Advanced"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value to compare to (0-255)")));
 
   obj.AddAction("ParticleSize1",
                 _("Start size"),
@@ -176,7 +199,8 @@ void ExtensionSubDeclaration2(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddCondition("ParticleSize1",
                    _("Start size"),
@@ -186,7 +210,8 @@ void ExtensionSubDeclaration2(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("ParticleSize2",
                 _("End size"),
@@ -196,7 +221,8 @@ void ExtensionSubDeclaration2(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddCondition("ParticleSize2",
                    _("End size"),
@@ -206,7 +232,8 @@ void ExtensionSubDeclaration2(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("ParticleAlpha1",
                 _("Start opacity"),
@@ -216,18 +243,23 @@ void ExtensionSubDeclaration2(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value (0-255)")));
 
-  obj.AddCondition(
-         "ParticleAlpha1",
-         _("Start opacity"),
-         _("Compare the start opacity of particles."),
-         _("the start opacity"),
-         _("Common"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("ParticleAlpha1",
+                   _("Start opacity"),
+                   _("Compare the start opacity of particles."),
+                   _("the start opacity"),
+                   _("Common"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value to compare to (0-255)")));
 
   obj.AddAction("ParticleAlpha2",
                 _("End opacity"),
@@ -237,18 +269,23 @@ void ExtensionSubDeclaration2(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value (0-255)")));
 
-  obj.AddCondition(
-         "ParticleAlpha2",
-         _("End opacity"),
-         _("Compare the end opacity of particles."),
-         _("the end opacity"),
-         _("Common"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("ParticleAlpha2",
+                   _("End opacity"),
+                   _("Compare the end opacity of particles."),
+                   _("the end opacity"),
+                   _("Common"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Value to compare to (0-255)")));
 
   obj.AddCondition("NoMoreParticles",
                    _("No more particles"),
@@ -261,58 +298,63 @@ void ExtensionSubDeclaration2(gd::ObjectMetadata& obj) {
       .AddParameter("object", _("Object"), "ParticleEmitter");
 
   obj.AddExpressionAndConditionAndAction(
-          "number",
-          "ParticleRotationMinSpeed",
-          _("Particle rotation min speed"),
-          _("the minimum rotation speed of the particles"),
-          _("the particles minimum rotation speed"),
-          _("Common"),
-          "CppPlatform/Extensions/particleSystemicon24.png")
+         "number",
+         "ParticleRotationMinSpeed",
+         _("Particle rotation min speed"),
+         _("the minimum rotation speed of the particles"),
+         _("the particles minimum rotation speed"),
+         _("Common"),
+         "CppPlatform/Extensions/particleSystemicon24.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardParameters("number")
+      .UseStandardParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angular speed (in degrees per second)")))
       .MarkAsAdvanced()
       .SetFunctionName("setParticleRotationMinSpeed")
       .SetGetter("getParticleRotationMinSpeed");
 
   obj.AddExpressionAndConditionAndAction(
-          "number",
-          "ParticleRotationMaxSpeed",
-          _("Particle rotation max speed"),
-          _("the maximum rotation speed of the particles"),
-          _("the particles maximum rotation speed"),
-          _("Common"),
-          "CppPlatform/Extensions/particleSystemicon24.png")
+         "number",
+         "ParticleRotationMaxSpeed",
+         _("Particle rotation max speed"),
+         _("the maximum rotation speed of the particles"),
+         _("the particles maximum rotation speed"),
+         _("Common"),
+         "CppPlatform/Extensions/particleSystemicon24.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardParameters("number")
+      .UseStandardParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Angular speed (in degrees per second)")))
       .MarkAsAdvanced()
       .SetFunctionName("setParticleRotationMaxSpeed")
       .SetGetter("getParticleRotationMaxSpeed");
 
   obj.AddExpressionAndConditionAndAction(
-          "number",
-          "MaxParticlesCount",
-          _("Number of displayed particles"),
-          _("the maximum number of displayed particles"),
-          _("the maximum number of displayed particles"),
-          _("Common"),
-          "CppPlatform/Extensions/particleSystemicon24.png")
+         "number",
+         "MaxParticlesCount",
+         _("Number of displayed particles"),
+         _("the maximum number of displayed particles"),
+         _("the maximum number of displayed particles"),
+         _("Common"),
+         "CppPlatform/Extensions/particleSystemicon24.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardParameters("number")
+      .UseStandardParameters("number", gd::ParameterOptions::MakeNewOptions())
       .SetFunctionName("setMaxParticlesCount")
       .SetGetter("getMaxParticlesCount");
 
   obj.AddExpressionAndConditionAndAction(
-          "boolean",
-          "AdditiveRendering",
-          _("Activate particles additive rendering"),
-          _("the particles additive rendering is activated"),
-          _("displaying particles with additive rendering activated"),
-          _("Common"),
-          "CppPlatform/Extensions/particleSystemicon24.png")
+         "boolean",
+         "AdditiveRendering",
+         _("Activate particles additive rendering"),
+         _("the particles additive rendering is activated"),
+         _("displaying particles with additive rendering activated"),
+         _("Common"),
+         "CppPlatform/Extensions/particleSystemicon24.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardParameters("boolean")
+      .UseStandardParameters("boolean", gd::ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced()
       .SetFunctionName("setAdditiveRendering")
       .SetGetter("getAdditiveRendering");
-
 }

Extensions/ParticleSystem/ExtensionSubDeclaration3.cpp

@@ -34,19 +34,20 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
          "CppPlatform/Extensions/particleSystemicon24.png",
          "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
-  obj.AddCondition(
-         "RendererParam1",
-         _("Rendering first parameter"),
-         _("Test the first parameter of rendering (Size/Length)."),
-         _("the 1st rendering parameter"),
-         _("Setup"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("RendererParam1",
+                   _("Rendering first parameter"),
+                   _("Test the first parameter of rendering (Size/Length)."),
+                   _("the 1st rendering parameter"),
+                   _("Setup"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
 
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("RendererParam2",
                 _("Rendering second parameter"),
@@ -58,18 +59,19 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
-  obj.AddCondition(
-         "RendererParam2",
-         _("Rendering second parameter"),
-         _("Test the second parameter of rendering (Size/Length)."),
-         _("the 2nd rendering parameter"),
-         _("Setup"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("RendererParam2",
+                   _("Rendering second parameter"),
+                   _("Test the second parameter of rendering (Size/Length)."),
+                   _("the 2nd rendering parameter"),
+                   _("Setup"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("Tank",
                 _("Capacity"),
@@ -79,8 +81,9 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .SetHidden() // DEPRECATED - Use SetTank instead
-      .UseStandardOperatorParameters("number");
+      .SetHidden()  // DEPRECATED - Use SetTank instead
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("SetTank",
                 _("Capacity"),
@@ -90,7 +93,9 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(_("Capacity")));
 
   obj.AddCondition("Tank",
                    _("Capacity"),
@@ -100,7 +105,10 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Capacity to compare to")));
 
   obj.AddAction("Flow",
                 _("Flow"),
@@ -110,8 +118,9 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .SetHidden() // DEPRECATED - Use SetFlow instead
-      .UseStandardOperatorParameters("number");
+      .SetHidden()  // DEPRECATED - Use SetFlow instead
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions());
 
   obj.AddAction("SetFlow",
                 _("Flow"),
@@ -121,7 +130,10 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
                 "CppPlatform/Extensions/particleSystemicon24.png",
                 "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardOperatorParameters("number");
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Flow (in particles per second)")));
 
   obj.AddCondition("Flow",
                    _("Flow"),
@@ -131,7 +143,10 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
                    "CppPlatform/Extensions/particleSystemicon24.png",
                    "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("number");
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Flow to compare to (in particles per second)")));
 
   obj.AddAction("Texture",
                 _("Particle image (using an expression)"),
@@ -154,16 +169,16 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
       .AddParameter("object", _("Object"), "ParticleEmitter")
       .AddParameter("imageResource", _("Image file (or image resource name)"));
 
-  obj.AddCondition(
-         "Texture",
-         _("Image"),
-         _("Test the name of the image displayed by particles."),
-         _("the image displayed by particles"),
-         _("Common"),
-         "CppPlatform/Extensions/particleSystemicon24.png",
-         "CppPlatform/Extensions/particleSystemicon16.png")
+  obj.AddCondition("Texture",
+                   _("Image"),
+                   _("Test the name of the image displayed by particles."),
+                   _("the image displayed by particles"),
+                   _("Common"),
+                   "CppPlatform/Extensions/particleSystemicon24.png",
+                   "CppPlatform/Extensions/particleSystemicon16.png")
       .AddParameter("object", _("Object"), "ParticleEmitter")
-      .UseStandardRelationalOperatorParameters("string");
+      .UseStandardRelationalOperatorParameters(
+          "string", gd::ParameterOptions::MakeNewOptions());
 
   obj.AddStrExpression("Texture",
                        _("Particles image"),
@@ -177,7 +192,7 @@ void ExtensionSubDeclaration3(gd::ObjectMetadata& obj) {
                     _("Particles number"),
                     _("Particles"),
                     "CppPlatform/Extensions/particleSystemicon16.png")
-      .SetHidden() // DEPRECATED - Use CurrentParticleCount instead
+      .SetHidden()  // DEPRECATED - Use CurrentParticleCount instead
       .AddParameter("object", _("Object"), "ParticleEmitter", false);
 
   obj.AddExpression("CurrentParticleCount",

Extensions/ParticleSystem/ParticleEmitterObject.cpp

@@ -5,16 +5,15 @@ Copyright (c) 2010-2016 Florian Rival (Florian.Rival@gmail.com)
 This project is released under the MIT License.
 */
 
-#include "GDCore/Tools/Localization.h"
+#include "ParticleEmitterObject.h"
+
 #include "GDCore/CommonTools.h"
+#include "GDCore/IDE/Project/ArbitraryResourceWorker.h"
 #include "GDCore/Project/InitialInstance.h"
 #include "GDCore/Project/Object.h"
 #include "GDCore/Project/Project.h"
 #include "GDCore/Serialization/SerializerElement.h"
-#include "ParticleEmitterObject.h"
-
-#include "GDCore/IDE/Project/ArbitraryResourceWorker.h"
-#include "GDCore/CommonTools.h"
+#include "GDCore/Tools/Localization.h"
 
 using namespace std;
 
@@ -178,53 +177,49 @@ void ParticleEmitterObject::ExposeResources(
   SetParticleTexture(texture);
 }
 
-void ParticleEmitterBase::SetTank(float newValue) {
-  tank = newValue;
-}
-void ParticleEmitterBase::SetFlow(float newValue) {
-  flow = newValue;
-}
-void ParticleEmitterBase::SetEmitterForceMin(float newValue) {
+void ParticleEmitterBase::SetTank(double newValue) { tank = newValue; }
+void ParticleEmitterBase::SetFlow(double newValue) { flow = newValue; }
+void ParticleEmitterBase::SetEmitterForceMin(double newValue) {
   emitterForceMin = newValue;
 }
-void ParticleEmitterBase::SetEmitterForceMax(float newValue) {
+void ParticleEmitterBase::SetEmitterForceMax(double newValue) {
   emitterForceMax = newValue;
 }
-void ParticleEmitterBase::SetParticleGravityX(float newValue) {
+void ParticleEmitterBase::SetParticleGravityX(double newValue) {
   particleGravityX = newValue;
 }
-void ParticleEmitterBase::SetParticleGravityY(float newValue) {
+void ParticleEmitterBase::SetParticleGravityY(double newValue) {
   particleGravityY = newValue;
 }
-void ParticleEmitterBase::SetEmitterAngleA(float newValue) {
+void ParticleEmitterBase::SetEmitterAngleA(double newValue) {
   emitterAngleA = newValue;
 }
-void ParticleEmitterBase::SetEmitterAngleB(float newValue) {
+void ParticleEmitterBase::SetEmitterAngleB(double newValue) {
   emitterAngleB = newValue;
 }
-void ParticleEmitterBase::SetZoneRadius(float newValue) {
+void ParticleEmitterBase::SetZoneRadius(double newValue) {
   zoneRadius = newValue;
 }
 
-void ParticleEmitterBase::SetParticleGravityAngle(float newAngleInDegree) {
-  float length = sqrt(GetParticleGravityY() * GetParticleGravityY() +
-                      GetParticleGravityX() * GetParticleGravityX());
+void ParticleEmitterBase::SetParticleGravityAngle(double newAngleInDegree) {
+  double length = sqrt(GetParticleGravityY() * GetParticleGravityY() +
+                       GetParticleGravityX() * GetParticleGravityX());
 
   SetParticleGravityX(cos(newAngleInDegree / 180.0f * 3.14159f) * length);
   SetParticleGravityY(sin(newAngleInDegree / 180.0f * 3.14159f) * length);
 }
-void ParticleEmitterBase::SetParticleGravityLength(float length) {
-  float angle = atan2(GetParticleGravityY(), GetParticleGravityX());
+void ParticleEmitterBase::SetParticleGravityLength(double length) {
+  double angle = atan2(GetParticleGravityY(), GetParticleGravityX());
 
   SetParticleGravityX(cos(angle) * length);
   SetParticleGravityY(sin(angle) * length);
 }
 
-float ParticleEmitterBase::GetParticleGravityAngle() const {
+double ParticleEmitterBase::GetParticleGravityAngle() const {
   return atan2(GetParticleGravityY(), GetParticleGravityX()) * 180.0f /
          3.14159f;
 }
-float ParticleEmitterBase::GetParticleGravityLength() const {
+double ParticleEmitterBase::GetParticleGravityLength() const {
   return sqrt(GetParticleGravityY() * GetParticleGravityY() +
               GetParticleGravityX() * GetParticleGravityX());
 }

Extensions/ParticleSystem/ParticleEmitterObject.h

@@ -12,7 +12,7 @@ This project is released under the MIT License.
 namespace gd {
 class InitialInstance;
 class Project;
-}
+}  // namespace gd
 
 /**
  * \brief Base class containing the parameters of an emitter as well as the
@@ -22,95 +22,69 @@ class GD_EXTENSION_API ParticleEmitterBase {
  public:
   ParticleEmitterBase();
   virtual ~ParticleEmitterBase();
-  ParticleEmitterBase(const ParticleEmitterBase& other) {
-    Init(other);
-  };
+  ParticleEmitterBase(const ParticleEmitterBase& other) { Init(other); };
   ParticleEmitterBase& operator=(const ParticleEmitterBase& other) {
     if (&other != this) Init(other);
     return *this;
   }
 
-  void SetParticleTexture(const gd::String & imageName) {
+  void SetParticleTexture(const gd::String& imageName) {
     textureParticleName = imageName;
   };
-  const gd::String & GetParticleTexture() const { return textureParticleName; };
+  const gd::String& GetParticleTexture() const { return textureParticleName; };
 
-  void SetRendererParam1(float newValue) { rendererParam1 = newValue; };
-  void SetRendererParam2(float newValue) { rendererParam2 = newValue; };
-  void SetTank(float newValue);
-  void SetFlow(float newValue);
-  void SetEmitterForceMin(float newValue);
-  void SetEmitterForceMax(float newValue);
-  void SetEmitterAngleA(float newValue);
-  void SetEmitterAngleB(float newValue);
-  void SetConeSprayAngle(float newValue) { SetEmitterAngleB(newValue); };
-  void SetZoneRadius(float newValue);
-  void SetParticleGravityX(float newValue);
-  void SetParticleGravityY(float newValue);
-  void SetParticleGravityAngle(float newAngleInDegree);
-  void SetParticleGravityLength(float newLength);
+  void SetRendererParam1(double newValue) { rendererParam1 = newValue; };
+  void SetRendererParam2(double newValue) { rendererParam2 = newValue; };
+  void SetTank(double newValue);
+  void SetFlow(double newValue);
+  void SetEmitterForceMin(double newValue);
+  void SetEmitterForceMax(double newValue);
+  void SetEmitterAngleA(double newValue);
+  void SetEmitterAngleB(double newValue);
+  void SetConeSprayAngle(double newValue) { SetEmitterAngleB(newValue); };
+  void SetZoneRadius(double newValue);
+  void SetParticleGravityX(double newValue);
+  void SetParticleGravityY(double newValue);
+  void SetParticleGravityAngle(double newAngleInDegree);
+  void SetParticleGravityLength(double newLength);
 
   void SetParticleColor1(const gd::String& color);
   void SetParticleColor2(const gd::String& color);
 
-  void SetParticleRed1(float newValue) {
-    particleRed1 = newValue;
-  };
-  void SetParticleRed2(float newValue) {
-    particleRed2 = newValue;
-  };
-  void SetParticleGreen1(float newValue) {
-    particleGreen1 = newValue;
-  };
-  void SetParticleGreen2(float newValue) {
-    particleGreen2 = newValue;
-  };
-  void SetParticleBlue1(float newValue) {
-    particleBlue1 = newValue;
-  };
-  void SetParticleBlue2(float newValue) {
-    particleBlue2 = newValue;
-  };
-  void SetParticleAlpha1(float newValue) {
-    particleAlpha1 = newValue;
-  };
-  void SetParticleAlpha2(float newValue) {
-    particleAlpha2 = newValue;
-  };
-  void SetParticleSize1(float newValue) {
-    particleSize1 = newValue;
-  };
-  void SetParticleSize2(float newValue) {
-    particleSize2 = newValue;
-  };
-  void SetParticleAngle1(float newValue) {
-    particleAngle1 = newValue;
-  };
-  void SetParticleAngle2(float newValue) {
-    particleAngle2 = newValue;
-  };
-  void SetParticleAlphaRandomness1(float newValue) {
+  void SetParticleRed1(double newValue) { particleRed1 = newValue; };
+  void SetParticleRed2(double newValue) { particleRed2 = newValue; };
+  void SetParticleGreen1(double newValue) { particleGreen1 = newValue; };
+  void SetParticleGreen2(double newValue) { particleGreen2 = newValue; };
+  void SetParticleBlue1(double newValue) { particleBlue1 = newValue; };
+  void SetParticleBlue2(double newValue) { particleBlue2 = newValue; };
+  void SetParticleAlpha1(double newValue) { particleAlpha1 = newValue; };
+  void SetParticleAlpha2(double newValue) { particleAlpha2 = newValue; };
+  void SetParticleSize1(double newValue) { particleSize1 = newValue; };
+  void SetParticleSize2(double newValue) { particleSize2 = newValue; };
+  void SetParticleAngle1(double newValue) { particleAngle1 = newValue; };
+  void SetParticleAngle2(double newValue) { particleAngle2 = newValue; };
+  void SetParticleAlphaRandomness1(double newValue) {
     particleAlphaRandomness1 = newValue;
   };
-  void SetParticleAlphaRandomness2(float newValue) {
+  void SetParticleAlphaRandomness2(double newValue) {
     particleAlphaRandomness2 = newValue;
   };
-  void SetParticleSizeRandomness1(float newValue) {
+  void SetParticleSizeRandomness1(double newValue) {
     particleSizeRandomness1 = newValue;
   };
-  void SetParticleSizeRandomness2(float newValue) {
+  void SetParticleSizeRandomness2(double newValue) {
     particleSizeRandomness2 = newValue;
   };
-  void SetParticleAngleRandomness1(float newValue) {
+  void SetParticleAngleRandomness1(double newValue) {
     particleAngleRandomness1 = newValue;
   };
-  void SetParticleAngleRandomness2(float newValue) {
+  void SetParticleAngleRandomness2(double newValue) {
     particleAngleRandomness2 = newValue;
   };
-  void SetParticleLifeTimeMin(float newValue) {
+  void SetParticleLifeTimeMin(double newValue) {
     particleLifeTimeMin = newValue;
   };
-  void SetParticleLifeTimeMax(float newValue) {
+  void SetParticleLifeTimeMax(double newValue) {
     particleLifeTimeMax = newValue;
   };
   void SetMaxParticleNb(std::size_t newValue) { maxParticleNb = newValue; };
@@ -118,50 +92,49 @@ class GD_EXTENSION_API ParticleEmitterBase {
     destroyWhenNoParticles = enable;
   };
 
-  float GetRendererParam1() const { return rendererParam1; };
-  float GetRendererParam2() const { return rendererParam2; };
-  float GetTank() const { return tank; };
-  float GetFlow() const { return flow; };
-  float GetEmitterForceMin() const { return emitterForceMin; };
-  float GetEmitterForceMax() const { return emitterForceMax; };
-  float GetEmitterAngleA() const { return emitterAngleA; };
-  float GetEmitterAngleB() const { return emitterAngleB; };
-  float GetConeSprayAngle() const { return GetEmitterAngleB(); };
-  float GetZoneRadius() const { return zoneRadius; };
-  float GetParticleGravityX() const { return particleGravityX; };
-  float GetParticleGravityY() const { return particleGravityY; };
-  float GetParticleGravityAngle() const;
-  float GetParticleGravityLength() const;
-  float GetParticleLifeTimeMin() const { return particleLifeTimeMin; };
-  float GetParticleLifeTimeMax() const { return particleLifeTimeMax; };
+  double GetRendererParam1() const { return rendererParam1; };
+  double GetRendererParam2() const { return rendererParam2; };
+  double GetTank() const { return tank; };
+  double GetFlow() const { return flow; };
+  double GetEmitterForceMin() const { return emitterForceMin; };
+  double GetEmitterForceMax() const { return emitterForceMax; };
+  double GetEmitterAngleA() const { return emitterAngleA; };
+  double GetEmitterAngleB() const { return emitterAngleB; };
+  double GetConeSprayAngle() const { return GetEmitterAngleB(); };
+  double GetZoneRadius() const { return zoneRadius; };
+  double GetParticleGravityX() const { return particleGravityX; };
+  double GetParticleGravityY() const { return particleGravityY; };
+  double GetParticleGravityAngle() const;
+  double GetParticleGravityLength() const;
+  double GetParticleLifeTimeMin() const { return particleLifeTimeMin; };
+  double GetParticleLifeTimeMax() const { return particleLifeTimeMax; };
   std::size_t GetMaxParticleNb() const { return maxParticleNb; };
   bool GetDestroyWhenNoParticles() const { return destroyWhenNoParticles; };
 
-
-  float GetParticleRed1() const { return particleRed1; };
-  float GetParticleRed2() const { return particleRed2; };
-  float GetParticleGreen1() const { return particleGreen1; };
-  float GetParticleGreen2() const { return particleGreen2; };
-  float GetParticleBlue1() const { return particleBlue1; };
-  float GetParticleBlue2() const { return particleBlue2; };
-  float GetParticleAlpha1() const { return particleAlpha1; };
-  float GetParticleAlpha2() const { return particleAlpha2; };
-  float GetParticleSize1() const { return particleSize1; };
-  float GetParticleSize2() const { return particleSize2; };
-  float GetParticleAngle1() const { return particleAngle1; };
-  float GetParticleAngle2() const { return particleAngle2; };
-  float GetParticleAlphaRandomness1() const {
+  double GetParticleRed1() const { return particleRed1; };
+  double GetParticleRed2() const { return particleRed2; };
+  double GetParticleGreen1() const { return particleGreen1; };
+  double GetParticleGreen2() const { return particleGreen2; };
+  double GetParticleBlue1() const { return particleBlue1; };
+  double GetParticleBlue2() const { return particleBlue2; };
+  double GetParticleAlpha1() const { return particleAlpha1; };
+  double GetParticleAlpha2() const { return particleAlpha2; };
+  double GetParticleSize1() const { return particleSize1; };
+  double GetParticleSize2() const { return particleSize2; };
+  double GetParticleAngle1() const { return particleAngle1; };
+  double GetParticleAngle2() const { return particleAngle2; };
+  double GetParticleAlphaRandomness1() const {
     return particleAlphaRandomness1;
   };
-  float GetParticleAlphaRandomness2() const {
+  double GetParticleAlphaRandomness2() const {
     return particleAlphaRandomness2;
   };
-  float GetParticleSizeRandomness1() const { return particleSizeRandomness1; };
-  float GetParticleSizeRandomness2() const { return particleSizeRandomness2; };
-  float GetParticleAngleRandomness1() const {
+  double GetParticleSizeRandomness1() const { return particleSizeRandomness1; };
+  double GetParticleSizeRandomness2() const { return particleSizeRandomness2; };
+  double GetParticleAngleRandomness1() const {
     return particleAngleRandomness1;
   };
-  float GetParticleAngleRandomness2() const {
+  double GetParticleAngleRandomness2() const {
     return particleAngleRandomness2;
   };
 
@@ -184,23 +157,23 @@ class GD_EXTENSION_API ParticleEmitterBase {
 
   gd::String textureParticleName;
   RendererType rendererType;
-  float rendererParam1;
-  float rendererParam2;
+  double rendererParam1;
+  double rendererParam2;
   bool additive;
-  float tank;
-  float flow;
-  float emitterForceMin;
-  float emitterForceMax;
-  float emitterAngleA;
-  float emitterAngleB;
-  float zoneRadius;
-  float particleGravityX, particleGravityY;
-  float particleLifeTimeMin, particleLifeTimeMax;
-  float particleRed1, particleRed2, particleGreen1, particleGreen2,
+  double tank;
+  double flow;
+  double emitterForceMin;
+  double emitterForceMax;
+  double emitterAngleA;
+  double emitterAngleB;
+  double zoneRadius;
+  double particleGravityX, particleGravityY;
+  double particleLifeTimeMin, particleLifeTimeMax;
+  double particleRed1, particleRed2, particleGreen1, particleGreen2,
       particleBlue1, particleBlue2, particleAlpha1, particleAlpha2;
-  float particleSize1, particleSize2, particleAngle1, particleAngle2;
-  float particleAlphaRandomness1, particleAlphaRandomness2;
-  float particleSizeRandomness1, particleSizeRandomness2,
+  double particleSize1, particleSize2, particleAngle1, particleAngle2;
+  double particleAlphaRandomness1, particleAlphaRandomness2;
+  double particleSizeRandomness1, particleSizeRandomness2,
       particleAngleRandomness1, particleAngleRandomness2;
   std::size_t maxParticleNb;
   bool destroyWhenNoParticles;  ///< If set to true, the object will removed

Extensions/PathfindingBehavior/Extension.cpp

@@ -5,10 +5,10 @@ Copyright (c) 2010-2016 Florian Rival (Florian.Rival@gmail.com)
 This project is released under the MIT License.
 */
 
-#include "GDCore/Extensions/PlatformExtension.h"
 #include "GDCore/Extensions/Metadata/MultipleInstructionMetadata.h"
-#include "GDCore/Tools/Localization.h"
+#include "GDCore/Extensions/PlatformExtension.h"
 #include "GDCore/Project/BehaviorsSharedData.h"
+#include "GDCore/Tools/Localization.h"
 #include "PathfindingBehavior.h"
 #include "PathfindingObstacleBehavior.h"
 
@@ -89,7 +89,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters("number",
+                                       gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("SetCellWidth")
         .SetGetter("GetCellWidth");
 
@@ -103,7 +104,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("GetCellWidth");
 
     aut.AddAction("CellHeight",
@@ -116,7 +118,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters("number",
+                                       gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("SetCellHeight")
         .SetGetter("GetCellHeight");
 
@@ -130,7 +133,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("GetCellHeight");
 
     aut.AddAction("Acceleration",
@@ -143,7 +147,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters("number",
+                                       gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("SetAcceleration")
         .SetGetter("GetAcceleration");
 
@@ -157,7 +162,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("GetAcceleration");
 
     aut.AddAction("MaxSpeed",
@@ -170,7 +176,10 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Max speed (in pixels per second)")))
         .SetFunctionName("SetMaxSpeed")
         .SetGetter("GetMaxSpeed");
 
@@ -184,7 +193,10 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Max speed to compare to (in pixels per second)")))
         .SetFunctionName("GetMaxSpeed");
 
     aut.AddAction("Speed",
@@ -197,7 +209,10 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed (in pixels per second)")))
         .SetFunctionName("SetSpeed")
         .SetGetter("GetSpeed");
 
@@ -211,17 +226,21 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed to compare to (in pixels per second)")))
         .SetFunctionName("GetSpeed");
 
-    aut.AddScopedCondition("MovementAngleIsAround",
-                          _("Angle of movement on its path"),
-                          _("Compare the angle of movement of an object on its path."),
-                          _("Angle of movement of _PARAM0_ is _PARAM2_ (tolerance"
-                              ": _PARAM3_ degrees)"),
-                          _("Movement on the path"),
-                         "CppPlatform/Extensions/AStaricon24.png",
-                         "CppPlatform/Extensions/AStaricon16.png")
+    aut.AddScopedCondition(
+           "MovementAngleIsAround",
+           _("Angle of movement on its path"),
+           _("Compare the angle of movement of an object on its path."),
+           _("Angle of movement of _PARAM0_ is _PARAM2_ (tolerance"
+             ": _PARAM3_ degrees)"),
+           _("Movement on the path"),
+           "CppPlatform/Extensions/AStaricon24.png",
+           "CppPlatform/Extensions/AStaricon16.png")
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
@@ -238,7 +257,10 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Max angular speed (in degrees per second)")))
         .SetFunctionName("SetAngularMaxSpeed")
         .SetGetter("GetAngularMaxSpeed");
 
@@ -253,7 +275,10 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Max angular speed to compare to (in degrees per second)")))
         .SetFunctionName("GetAngularMaxSpeed");
 
     aut.AddAction(
@@ -267,7 +292,10 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Angle (in degrees)")))
         .SetFunctionName("SetAngleOffset")
         .SetGetter("GetAngleOffset");
 
@@ -281,7 +309,10 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Angle to compare to (in degrees)")))
         .SetFunctionName("GetAngleOffset");
 
     aut.AddAction(
@@ -296,7 +327,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters("number",
+                                       gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("SetExtraBorder")
         .SetGetter("GetExtraBorder");
 
@@ -311,7 +343,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("GetExtraBorder");
 
     aut.AddAction(
@@ -548,7 +581,7 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
                       "CppPlatform/Extensions/AStaricon24.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardParameters("number");
+        .UseStandardParameters("number", gd::ParameterOptions::MakeNewOptions());
 
     aut.AddExpressionAndConditionAndAction("number",
                       "GridOffsetY",
@@ -559,7 +592,7 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
                       "CppPlatform/Extensions/AStaricon24.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingBehavior")
-        .UseStandardParameters("number");
+        .UseStandardParameters("number", gd::ParameterOptions::MakeNewOptions());
 
   }
   {
@@ -584,7 +617,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingObstacleBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters("number",
+                                       gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("SetCost")
         .SetGetter("GetCost");
 
@@ -598,7 +632,8 @@ void DeclarePathfindingBehaviorExtension(gd::PlatformExtension& extension) {
 
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PathfindingObstacleBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .SetFunctionName("GetCost");
 
     aut.AddAction("SetImpassable",

Extensions/PathfindingBehavior/JsExtension.cpp

@@ -27,7 +27,10 @@ class PathfindingBehaviorJsExtension : public gd::PlatformExtension {
             "Extensions/PathfindingBehavior/pathfindingruntimebehavior.js")
         .AddIncludeFile(
             "Extensions/PathfindingBehavior/"
-            "pathfindingobstacleruntimebehavior.js");
+            "pathfindingobstacleruntimebehavior.js")
+        .AddIncludeFile(
+            "Extensions/PathfindingBehavior/"
+            "PathTools.js");
 
     {
       std::map<gd::String, gd::InstructionMetadata>& autActions =

Extensions/PathfindingBehavior/PathTools.ts

@@ -0,0 +1,163 @@
+namespace gdjs {
+  export namespace pathfinding {
+    /**
+     * Simplify a path according to an allowed gap.
+     *
+     * The simplified path vertices are the same instances as the one in
+     * the source. They must be cloned to make them truly independent from each
+     * other.
+     *
+     * @param sourceVertices The path to simplify.
+     * @param maxGap The maximum distance the edge of the contour may deviate
+     * from the source geometry.
+     * @param simplifiedVertices The simplified path.
+     * @param workingVertices It avoids allocations.
+     */
+    export const simplifyPath = (
+      sourceVertices: FloatPoint[],
+      maxGap: float,
+      simplifiedVertices: FloatPoint[] = [],
+      workingVertices: FloatPoint[] = []
+    ): FloatPoint[] => {
+      if (sourceVertices.length <= 2) {
+        simplifiedVertices.length = 0;
+        simplifiedVertices.push.apply(simplifiedVertices, sourceVertices);
+        return simplifiedVertices;
+      }
+      const maxGapSq = maxGap * maxGap;
+
+      // We start with only one rope part.
+      // Stretch a rope between the start and the end of the path.
+      let previousStepVertices: FloatPoint[] = workingVertices;
+      previousStepVertices.length = 0;
+      previousStepVertices.push(sourceVertices[0]);
+      previousStepVertices.push(sourceVertices[sourceVertices.length - 1]);
+
+      do {
+        simplifiedVertices.length = 0;
+        simplifiedVertices.push(previousStepVertices[0]);
+
+        // For each part of the rope...
+        let sourceIndex = 0;
+        for (
+          let previousStepVerticesIndex = 0;
+          previousStepVerticesIndex + 1 < previousStepVertices.length;
+          previousStepVerticesIndex++
+        ) {
+          const startVertex = previousStepVertices[previousStepVerticesIndex];
+          const endVertex = previousStepVertices[previousStepVerticesIndex + 1];
+
+          const startX = startVertex[0];
+          const startY = startVertex[1];
+          const endX = endVertex[0];
+          const endY = endVertex[1];
+
+          // Search the furthest vertex from the rope part.
+          let maxDeviationSq = maxGapSq;
+          let maxDeviationVertex: FloatPoint | null = null;
+          // The first and last vertices of the rope part are not checked.
+          for (
+            sourceIndex++;
+            sourceVertices[sourceIndex] !== endVertex;
+            sourceIndex++
+          ) {
+            const sourceVertex = sourceVertices[sourceIndex];
+
+            const deviationSq = gdjs.pathfinding.getPointSegmentDistanceSq(
+              sourceVertex[0],
+              sourceVertex[1],
+              startX,
+              startY,
+              endX,
+              endY
+            );
+            if (deviationSq > maxDeviationSq) {
+              maxDeviationSq = deviationSq;
+              maxDeviationVertex = sourceVertex;
+            }
+          }
+          // Add the furthest vertex to the rope.
+          // The current rope part is split in 2 for the next step.
+          if (maxDeviationVertex) {
+            simplifiedVertices.push(maxDeviationVertex);
+          }
+          simplifiedVertices.push(endVertex);
+        }
+
+        const swapVertices = previousStepVertices;
+        previousStepVertices = simplifiedVertices;
+        simplifiedVertices = swapVertices;
+      } while (
+        // Stop when no new vertex were added.
+        // It means that the maxGap constraint is fulfilled.
+        // Otherwise, iterate over the full path once more.
+        simplifiedVertices.length !== previousStepVertices.length
+      );
+      return simplifiedVertices;
+    };
+
+    /**
+     * Returns the distance squared from the point to the line segment.
+     *
+     * Behavior is undefined if the the closest distance is outside the
+     * line segment.
+     *
+     * @param px The X position of point (px, py).
+     * @param py The Y position of point (px, py)
+     * @param ax The X position of the line segment's vertex A.
+     * @param ay The Y position of the line segment's vertex A.
+     * @param bx The X position of the line segment's vertex B.
+     * @param by The Y position of the line segment's vertex B.
+     * @return The distance squared from the point (px, py) to line segment AB.
+     */
+    export const getPointSegmentDistanceSq = (
+      px: float,
+      py: float,
+      ax: float,
+      ay: float,
+      bx: float,
+      by: float
+    ): float => {
+      // This implementation is strongly inspired from CritterAI class "Geometry".
+      //
+      // Reference: http://local.wasp.uwa.edu.au/~pbourke/geometry/pointline/
+      //
+      // The goal of the algorithm is to find the point on line segment AB
+      // that is closest to P and then calculate the distance between P
+      // and that point.
+
+      const deltaABx = bx - ax;
+      const deltaABy = by - ay;
+      const deltaAPx = px - ax;
+      const deltaAPy = py - ay;
+
+      const segmentABLengthSq = deltaABx * deltaABx + deltaABy * deltaABy;
+      if (segmentABLengthSq === 0) {
+        // AB is not a line segment. So just return
+        // distanceSq from P to A
+        return deltaAPx * deltaAPx + deltaAPy * deltaAPy;
+      }
+
+      const u = (deltaAPx * deltaABx + deltaAPy * deltaABy) / segmentABLengthSq;
+      if (u < 0) {
+        // Closest point on line AB is outside outside segment AB and
+        // closer to A. So return distanceSq from P to A.
+        return deltaAPx * deltaAPx + deltaAPy * deltaAPy;
+      } else if (u > 1) {
+        // Closest point on line AB is outside segment AB and closer to B.
+        // So return distanceSq from P to B.
+        return (px - bx) * (px - bx) + (py - by) * (py - by);
+      }
+
+      // Closest point on lineAB is inside segment AB. So find the exact
+      // point on AB and calculate the distanceSq from it to P.
+
+      // The calculation in parenthesis is the location of the point on
+      // the line segment.
+      const deltaX = ax + u * deltaABx - px;
+      const deltaY = ay + u * deltaABy - py;
+
+      return deltaX * deltaX + deltaY * deltaY;
+    };
+  }
+}

Extensions/PathfindingBehavior/PathfindingBehavior.cpp

@@ -24,39 +24,92 @@ void PathfindingBehavior::InitializeContent(
   behaviorContent.SetAttribute("gridOffsetX", 0);
   behaviorContent.SetAttribute("gridOffsetY", 0);
   behaviorContent.SetAttribute("extraBorder", 0);
+  behaviorContent.SetAttribute("smoothingMaxCellGap", 1);
 }
 
 #if defined(GD_IDE_ONLY)
 std::map<gd::String, gd::PropertyDescriptor> PathfindingBehavior::GetProperties(
-    const gd::SerializerElement& behaviorContent) const {
+    const gd::SerializerElement &behaviorContent) const {
   std::map<gd::String, gd::PropertyDescriptor> properties;
 
-  properties[_("Allows diagonals")]
+  properties["AllowDiagonals"]
+      .SetLabel(_("Allows diagonals"))
       .SetValue(behaviorContent.GetBoolAttribute("allowDiagonals") ? "true"
                                                                    : "false")
+      .SetGroup(_("Path smoothing"))
       .SetType("Boolean");
-  properties[_("Acceleration")].SetValue(
+  properties["Acceleration"]
+      .SetLabel(_("Acceleration"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelAcceleration()).SetValue(
       gd::String::From(behaviorContent.GetDoubleAttribute("acceleration")));
-  properties[_("Max. speed")].SetValue(
+  properties["MaxSpeed"]
+      .SetLabel(_("Max. speed"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelSpeed()).SetValue(
       gd::String::From(behaviorContent.GetDoubleAttribute("maxSpeed")));
-  properties[_("Rotate speed")].SetGroup(_("Rotation")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("angularMaxSpeed")));
-  properties[_("Rotate object")].SetGroup(_("Rotation"))
+  properties["AngularMaxSpeed"]
+      .SetLabel(_("Rotation speed"))
+      .SetGroup(_("Rotation"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetAngularSpeed())
+      .SetValue(gd::String::From(
+          behaviorContent.GetDoubleAttribute("angularMaxSpeed")));
+  properties["RotateObject"]
+      .SetLabel(_("Rotate object"))
+      .SetGroup(_("Rotation"))
       .SetValue(behaviorContent.GetBoolAttribute("rotateObject") ? "true"
                                                                  : "false")
       .SetType("Boolean");
-  properties[_("Angle offset")].SetGroup(_("Rotation")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("angleOffset")));
-  properties[_("Virtual cell width")].SetGroup(_("Virtual Grid")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("cellWidth", 0)));
-  properties[_("Virtual cell height")].SetGroup(_("Virtual Grid")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("cellHeight", 0)));
-  properties[_("Virtual grid X offset")].SetGroup(_("Virtual Grid")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("gridOffsetX", 0)));
-  properties[_("Virtual grid Y offset")].SetGroup(_("Virtual Grid")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("gridOffsetY", 0)));
-  properties[_("Extra border size")].SetGroup(_("Collision")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("extraBorder")));
+  properties["AngleOffset"]
+      .SetLabel(_("Angle offset"))
+      .SetGroup(_("Rotation"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetDegreeAngle())
+      .SetValue(
+          gd::String::From(behaviorContent.GetDoubleAttribute("angleOffset")));
+  properties["CellWidth"]
+      .SetLabel(_("Virtual cell width"))
+      .SetGroup(_("Virtual Grid"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
+      .SetValue(
+          gd::String::From(behaviorContent.GetDoubleAttribute("cellWidth", 0)));
+  properties["CellHeight"]
+      .SetLabel(_("Virtual cell height"))
+      .SetGroup(_("Virtual Grid"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
+      .SetValue(gd::String::From(
+          behaviorContent.GetDoubleAttribute("cellHeight", 0)));
+  properties["GridOffsetX"]
+      .SetLabel(_("Virtual grid X offset"))
+      .SetGroup(_("Virtual Grid"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
+      .SetValue(gd::String::From(
+          behaviorContent.GetDoubleAttribute("gridOffsetX", 0)));
+  properties["GridOffsetY"]
+      .SetLabel(_("Virtual grid Y offset"))
+      .SetGroup(_("Virtual Grid"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
+      .SetValue(gd::String::From(
+          behaviorContent.GetDoubleAttribute("gridOffsetY", 0)));
+  properties["ExtraBorder"]
+      .SetDescription(_("Extra border size"))
+      .SetGroup(_("Collision"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
+      .SetValue(
+          gd::String::From(behaviorContent.GetDoubleAttribute("extraBorder")));
+  properties["SmoothingMaxCellGap"]
+      .SetLabel(_("Smoothing max cell gap"))
+      .SetValue(gd::String::From(
+          behaviorContent.GetDoubleAttribute("smoothingMaxCellGap")))
+      .SetGroup(_("Path smoothing"))
+      .SetDescription(_("It's recommended to leave a max gap of 1 cell. "
+                        "Setting it to 0 disable the smoothing."));
 
   return properties;
 }
@@ -64,37 +117,39 @@ std::map<gd::String, gd::PropertyDescriptor> PathfindingBehavior::GetProperties(
 bool PathfindingBehavior::UpdateProperty(gd::SerializerElement& behaviorContent,
                                          const gd::String& name,
                                          const gd::String& value) {
-  if (name == _("Allows diagonals")) {
+  if (name == "AllowDiagonals") {
     behaviorContent.SetAttribute("allowDiagonals", (value != "0"));
     return true;
   }
-  if (name == _("Rotate object")) {
+  if (name == "RotateObject") {
     behaviorContent.SetAttribute("rotateObject", (value != "0"));
     return true;
   }
-  if (name == _("Extra border size")) {
+  if (name == "ExtraBorder") {
     behaviorContent.SetAttribute("extraBorder", value.To<float>());
     return true;
   }
 
   if (value.To<float>() < 0) return false;
 
-  if (name == _("Acceleration"))
+  if (name == "Acceleration")
     behaviorContent.SetAttribute("acceleration", value.To<float>());
-  else if (name == _("Max. speed"))
+  else if (name == "MaxSpeed")
     behaviorContent.SetAttribute("maxSpeed", value.To<float>());
-  else if (name == _("Rotate speed"))
+  else if (name == "AngularMaxSpeed")
     behaviorContent.SetAttribute("angularMaxSpeed", value.To<float>());
-  else if (name == _("Angle offset"))
+  else if (name == "AngleOffset")
     behaviorContent.SetAttribute("angleOffset", value.To<float>());
-  else if (name == _("Virtual cell width"))
+  else if (name == "CellWidth")
     behaviorContent.SetAttribute("cellWidth", value.To<float>());
-  else if (name == _("Virtual cell height"))
+  else if (name == "CellHeight")
     behaviorContent.SetAttribute("cellHeight", value.To<float>());
-  else if (name == _("Virtual grid X offset"))
+  else if (name == "GridOffsetX")
     behaviorContent.SetAttribute("gridOffsetX", value.To<float>());
-  else if (name == _("Virtual grid Y offset"))
+  else if (name == "GridOffsetY")
     behaviorContent.SetAttribute("gridOffsetY", value.To<float>());
+  else if (name == "SmoothingMaxCellGap")
+    behaviorContent.SetAttribute("smoothingMaxCellGap", value.To<float>());
   else
     return false;
 

Extensions/PathfindingBehavior/PathfindingObstacleBehavior.cpp

@@ -20,12 +20,14 @@ std::map<gd::String, gd::PropertyDescriptor>
 PathfindingObstacleBehavior::GetProperties(
     const gd::SerializerElement& behaviorContent) const {
   std::map<gd::String, gd::PropertyDescriptor> properties;
-  properties[_("Impassable obstacle")]
+  properties["Impassable"]
+      .SetLabel(_("Impassable obstacle"))
       .SetValue(behaviorContent.GetBoolAttribute("impassable") ? "true"
                                                                : "false")
       .SetType("Boolean");
-  properties[_("Cost (if not impassable)")].SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("cost")));
+  properties["Cost"]
+      .SetLabel(_("Cost (if not impassable)"))
+      .SetValue(gd::String::From(behaviorContent.GetDoubleAttribute("cost")));
 
   return properties;
 }
@@ -34,14 +36,14 @@ bool PathfindingObstacleBehavior::UpdateProperty(
     gd::SerializerElement& behaviorContent,
     const gd::String& name,
     const gd::String& value) {
-  if (name == _("Impassable obstacle")) {
+  if (name == "Impassable") {
     behaviorContent.SetAttribute("impassable", (value != "0"));
     return true;
   }
 
   if (value.To<float>() < 0) return false;
 
-  if (name == _("Cost (if not impassable)"))
+  if (name == "Cost")
     behaviorContent.SetAttribute("cost", value.To<float>());
   else
     return false;

Extensions/PathfindingBehavior/PathfindingObstacleBehavior.h

@@ -8,6 +8,7 @@ This project is released under the MIT License.
 #ifndef PATHFINDINGOBSTACLEBEHAVIOR_H
 #define PATHFINDINGOBSTACLEBEHAVIOR_H
 #include <map>
+
 #include "GDCore/Project/Behavior.h"
 namespace gd {
 class SerializerElement;
@@ -28,13 +29,11 @@ class GD_EXTENSION_API PathfindingObstacleBehavior : public gd::Behavior {
     return new PathfindingObstacleBehavior(*this);
   }
 
-#if defined(GD_IDE_ONLY)
   virtual std::map<gd::String, gd::PropertyDescriptor> GetProperties(
       const gd::SerializerElement& behaviorContent) const override;
   virtual bool UpdateProperty(gd::SerializerElement& behaviorContent,
                               const gd::String& name,
                               const gd::String& value) override;
-#endif
 
   virtual void InitializeContent(
       gd::SerializerElement& behaviorContent) override;

Extensions/PathfindingBehavior/pathfindingruntimebehavior.ts

@@ -10,6 +10,10 @@ namespace gdjs {
    */
   export class PathfindingRuntimeBehavior extends gdjs.RuntimeBehavior {
     _path: Array<FloatPoint> = [];
+    /** Used by the path simplification algorithm */
+    static _smoothingResultVertices: Array<FloatPoint> = [];
+    /** Used by the path simplification algorithm */
+    static _smoothingWorkingVertices: Array<FloatPoint> = [];
 
     //Behavior configuration:
     _allowDiagonals: boolean;
@@ -23,6 +27,7 @@ namespace gdjs {
     _gridOffsetX: float;
     _gridOffsetY: float;
     _extraBorder: float;
+    _smoothingMaxCellGap: float;
 
     //Attributes used for traveling on the path:
     _pathFound: boolean = false;
@@ -60,6 +65,7 @@ namespace gdjs {
       this._gridOffsetX = behaviorData.gridOffsetX || 0;
       this._gridOffsetY = behaviorData.gridOffsetY || 0;
       this._extraBorder = behaviorData.extraBorder;
+      this._smoothingMaxCellGap = behaviorData.smoothingMaxCellGap || 0;
       this._manager = gdjs.PathfindingObstaclesManager.getManager(
         instanceContainer
       );
@@ -102,6 +108,12 @@ namespace gdjs {
       if (oldBehaviorData.extraBorder !== newBehaviorData.extraBorder) {
         this.setExtraBorder(newBehaviorData.extraBorder);
       }
+      if (
+        oldBehaviorData.smoothingMaxCellGap !==
+        newBehaviorData.smoothingMaxCellGap
+      ) {
+        this._smoothingMaxCellGap = newBehaviorData.smoothingMaxCellGap;
+      }
       return true;
     }
 
@@ -377,6 +389,20 @@ namespace gdjs {
         this._path.reverse();
         this._path[0][0] = owner.getX();
         this._path[0][1] = owner.getY();
+
+        if (this._allowDiagonals && this._smoothingMaxCellGap > 0) {
+          gdjs.pathfinding.simplifyPath(
+            this._path,
+            this._smoothingMaxCellGap *
+              Math.min(this._cellWidth, this._cellHeight),
+            gdjs.PathfindingRuntimeBehavior._smoothingResultVertices,
+            gdjs.PathfindingRuntimeBehavior._smoothingWorkingVertices
+          );
+          let swapArray = this._path;
+          this._path = gdjs.PathfindingRuntimeBehavior._smoothingResultVertices;
+          gdjs.PathfindingRuntimeBehavior._smoothingResultVertices = swapArray;
+        }
+
         this._enterSegment(0);
         this._pathFound = true;
         return;

Extensions/PathfindingBehavior/tests/FrameRatePathfindingRuntimeBehavior.spec.js

@@ -0,0 +1,239 @@
+// @ts-check
+describe('gdjs.PathfindingRuntimeBehavior', function () {
+  const epsilon = 1 / (2 << 16);
+  // tests cases where every collisionMethod has the same behavior.
+  let doCommonPathFindingTests = (collisionMethod) => {
+    const pathFindingName = 'auto1';
+
+    const createScene = (framePerSecond = 60) => {
+      const runtimeGame = new gdjs.RuntimeGame({
+        variables: [],
+        // @ts-ignore - missing properties.
+        properties: { windowWidth: 800, windowHeight: 600 },
+        resources: { resources: [] },
+      });
+      const runtimeScene = new gdjs.RuntimeScene(runtimeGame);
+      runtimeScene.loadFromScene({
+        layers: [
+          {
+            name: '',
+            visibility: true,
+            effects: [],
+            cameras: [],
+
+            ambientLightColorR: 0,
+            ambientLightColorG: 0,
+            ambientLightColorB: 0,
+            isLightingLayer: false,
+            followBaseLayerCamera: true,
+          },
+        ],
+        variables: [],
+        r: 0,
+        v: 0,
+        b: 0,
+        mangledName: 'Scene1',
+        name: 'Scene1',
+        stopSoundsOnStartup: false,
+        title: '',
+        behaviorsSharedData: [],
+        objects: [],
+        instances: [],
+      });
+      setFramePerSecond(runtimeScene, framePerSecond);
+      return runtimeScene;
+    };
+    const setFramePerSecond = (runtimeScene, framePerSecond) => {
+      runtimeScene._timeManager.getElapsedTime = function () {
+        return 1000 / framePerSecond;
+      };
+    };
+
+    const addPlayer = (runtimeScene, allowDiagonals) => {
+      const player = new gdjs.RuntimeObject(runtimeScene, {
+        name: 'player',
+        type: '',
+        behaviors: [
+          {
+            type: 'PathfindingBehavior::PathfindingBehavior',
+            name: 'auto1',
+            // @ts-ignore - properties are not typed
+            allowDiagonals: allowDiagonals,
+            acceleration: 400,
+            maxSpeed: 200,
+            angularMaxSpeed: 180,
+            rotateObject: false,
+            angleOffset: 0,
+            cellWidth: 20,
+            cellHeight: 20,
+            extraBorder: 0,
+            collisionMethod: true,
+          },
+        ],
+        effects: [],
+      });
+      player.getWidth = function () {
+        return 90;
+      };
+      player.getHeight = function () {
+        return 90;
+      };
+      runtimeScene.addObject(player);
+      return player;
+    };
+
+    const addObstacle = (runtimeScene) => {
+      const obstacle = new gdjs.RuntimeObject(runtimeScene, {
+        name: 'obstacle',
+        type: '',
+        behaviors: [
+          {
+            type: 'PathfindingBehavior::PathfindingObstacleBehavior',
+            // @ts-ignore - properties are not typed
+            impassable: true,
+            cost: 2,
+          },
+        ],
+        effects: [],
+      });
+      obstacle.getWidth = function () {
+        return 100;
+      };
+      obstacle.getHeight = function () {
+        return 100;
+      };
+      runtimeScene.addObject(obstacle);
+      return obstacle;
+    };
+
+    const getPathLength = (player) => {
+      /** @type gdjs.PathfindingRuntimeBehavior */
+      const behavior = player.getBehavior(pathFindingName);
+      if (behavior.getNodeCount() < 2) {
+        return 0;
+      }
+      let pathLength = 0;
+      let previousNodeX = behavior.getNodeX(0);
+      let previousNodeY = behavior.getNodeY(0);
+      for (let index = 1; index < behavior.getNodeCount(); index++) {
+        const nodeX = behavior.getNodeX(index);
+        const nodeY = behavior.getNodeY(index);
+        pathLength += Math.hypot(nodeX - previousNodeX, nodeY - previousNodeY);
+        previousNodeX = nodeX;
+        previousNodeY = nodeY;
+      }
+      return pathLength;
+    };
+
+    describe(`(allowDiagonals: true)`, function () {
+      let runtimeScene;
+      let player;
+
+      beforeEach(function () {
+        runtimeScene = createScene();
+        const allowDiagonals = true;
+        player = addPlayer(runtimeScene, allowDiagonals);
+      });
+
+      [20, 30, 60, 120].forEach((framePerSecond) => {
+        describe(`(${framePerSecond} fps)`, function () {
+          it('can move on the path at the right speed', function () {
+            setFramePerSecond(runtimeScene, framePerSecond);
+            const obstacle = addObstacle(runtimeScene);
+
+            obstacle.setPosition(600, 300);
+            // To ensure obstacles are registered.
+            runtimeScene.renderAndStep(1000 / framePerSecond);
+
+            player.setPosition(480, 300);
+            player.getBehavior(pathFindingName).moveTo(runtimeScene, 720, 300);
+            expect(player.getBehavior(pathFindingName).pathFound()).to.be(true);
+            expect(getPathLength(player)).to.be.above(720 - 480 + 50);
+
+            // Move on the path and stop before the last 1/10 of second.
+            for (let i = 0; i < (framePerSecond * 17) / 10; i++) {
+              runtimeScene.renderAndStep(1000 / framePerSecond);
+              expect(
+                player.getBehavior(pathFindingName).destinationReached()
+              ).to.be(false);
+            }
+            // The position is the same no matter the frame rate.
+            expect(player.getX()).to.be(720);
+            expect(player.getY()).to.be.within(
+              288.5786437626905 - epsilon,
+              288.5786437626905 + epsilon
+            );
+
+            // Let 1/10 of second pass,
+            // because the calculus interval is not the same for each case.
+            for (let i = 0; i < framePerSecond / 10; i++) {
+              runtimeScene.renderAndStep(1000 / framePerSecond);
+            }
+            // The destination is reached for every frame rate within 1/10 of second.
+            expect(player.getX()).to.be(720);
+            expect(player.getY()).to.be(300);
+            expect(
+              player.getBehavior(pathFindingName).destinationReached()
+            ).to.be(true);
+          });
+        });
+      });
+    });
+    describe(`(allowDiagonals: false)`, function () {
+      let runtimeScene;
+      let player;
+
+      beforeEach(function () {
+        runtimeScene = createScene();
+        const allowDiagonals = false;
+        player = addPlayer(runtimeScene, allowDiagonals);
+      });
+
+      [20, 30, 60, 120].forEach((framePerSecond) => {
+        describe(`(${framePerSecond} fps)`, function () {
+          it('can move on the path at the right speed', function () {
+            setFramePerSecond(runtimeScene, framePerSecond);
+            const obstacle = addObstacle(runtimeScene);
+
+            obstacle.setPosition(600, 300);
+            // To ensure obstacles are registered.
+            runtimeScene.renderAndStep(1000 / framePerSecond);
+
+            player.setPosition(480, 300);
+            player.getBehavior(pathFindingName).moveTo(runtimeScene, 720, 300);
+            expect(player.getBehavior(pathFindingName).pathFound()).to.be(true);
+            expect(getPathLength(player)).to.be.above(720 - 480 + 100);
+
+            // Move on the path and stop before the last 1/10 of second.
+            for (let i = 0; i < (framePerSecond * 20) / 10; i++) {
+              runtimeScene.renderAndStep(1000 / framePerSecond);
+              expect(
+                player.getBehavior(pathFindingName).destinationReached()
+              ).to.be(false);
+            }
+            expect(player.getX()).to.be(710);
+            expect(player.getY()).to.be.within(300 - epsilon, 300 + epsilon);
+
+            // Let 1/10 of second pass,
+            // because the calculus interval is not the same for each case.
+            for (let i = 0; i < (framePerSecond * 1) / 10; i++) {
+              runtimeScene.renderAndStep(1000 / framePerSecond);
+            }
+            // The destination is reached for every frame rate within 1/10 of second.
+            expect(player.getX()).to.be(720);
+            expect(player.getY()).to.be(300);
+            expect(
+              player.getBehavior(pathFindingName).destinationReached()
+            ).to.be(true);
+          });
+        });
+      });
+    });
+  };
+
+  ['Legacy'].forEach((collisionMethod) => {
+    describe(`(collisionMethod: ${collisionMethod}, `, function () {
+      doCommonPathFindingTests(collisionMethod);
+    });
+  });
+});

Extensions/PathfindingBehavior/tests/PathTools.spec.js

@@ -0,0 +1,115 @@
+// @ts-check
+describe('gdjs.pathfinding', function () {
+  it('can give back an empty path', function () {
+    expect(gdjs.pathfinding.simplifyPath([], 1)).to.eql([]);
+  });
+
+  it('can give back a path with only 1 vertex', function () {
+    expect(gdjs.pathfinding.simplifyPath([[2, 4]], 1)).to.eql([[2, 4]]);
+  });
+
+  it('can give back a path with only 2 vertex', function () {
+    expect(
+      gdjs.pathfinding.simplifyPath(
+        [
+          [2, 4],
+          [8, 1],
+        ],
+        1
+      )
+    ).to.eql([
+      [2, 4],
+      [8, 1],
+    ]);
+  });
+
+  it('can give back a path with 3 vertex', function () {
+    expect(
+      gdjs.pathfinding.simplifyPath(
+        [
+          [2, 4],
+          [8, 1],
+          [16, 32],
+        ],
+        1
+      )
+    ).to.eql([
+      [2, 4],
+      [8, 1],
+      [16, 32],
+    ]);
+  });
+
+  it('can simplify a line of vertices', function () {
+    expect(
+      gdjs.pathfinding.simplifyPath(
+        [
+          [2, 4],
+          [2, 5],
+          [2, 9],
+          [2, 9.5],
+        ],
+        1
+      )
+    ).to.eql([
+      [2, 4],
+      [2, 9.5],
+    ]);
+  });
+
+  it('can simplify a line of vertices with some tangential noise', function () {
+    expect(
+      gdjs.pathfinding.simplifyPath(
+        [
+          [2, 4],
+          [2.5, 5],
+          [1.1, 9],
+          [2, 9.5],
+        ],
+        1
+      )
+    ).to.eql([
+      [2, 4],
+      [2, 9.5],
+    ]);
+  });
+
+  it('can simplify an aliased oblique line', function () {
+    expect(
+      gdjs.pathfinding.simplifyPath(
+        [
+          [2, 4],
+          [3, 4],
+          [4, 3],
+          [5, 3],
+          [6, 3],
+          [7, 2],
+          [8, 2],
+        ],
+        1
+      )
+    ).to.eql([
+      [2, 4],
+      [8, 2],
+    ]);
+  });
+
+  it('can preserve a bend', function () {
+    expect(
+      gdjs.pathfinding.simplifyPath(
+        [
+          [2, 4],
+          [2.5, 5],
+          [2, 9],
+          [3, 9.9],
+          [5, 9],
+        ],
+        1
+      )
+    ).to.eql([
+      [2, 4],
+      [2, 9],
+      [5, 9],
+    ]);
+  });
+});

Extensions/PathfindingBehavior/tests/commonpathfindingruntimebehavior.spec.js

@@ -1,8 +1,11 @@
 // @ts-check
 describe('gdjs.PathfindingRuntimeBehavior', function () {
-  const epsilon = 1 / (2 << 16);
   // tests cases where every collisionMethod has the same behavior.
-  let doCommonPathFindingTests = (collisionMethod, allowDiagonals) => {
+  let doCommonPathFindingTests = (
+    collisionMethod,
+    allowDiagonals,
+    smoothingMaxCellGap
+  ) => {
     const pathFindingName = 'auto1';
 
     const createScene = (framePerSecond = 60) => {
@@ -67,6 +70,7 @@ describe('gdjs.PathfindingRuntimeBehavior', function () {
             cellWidth: 20,
             cellHeight: 20,
             extraBorder: 0,
+            smoothingMaxCellGap: smoothingMaxCellGap,
             collisionMethod: collisionMethod,
           },
         ],
@@ -106,6 +110,25 @@ describe('gdjs.PathfindingRuntimeBehavior', function () {
       return obstacle;
     };
 
+    const getPathLength = (player) => {
+      /** @type gdjs.PathfindingRuntimeBehavior */
+      const behavior = player.getBehavior(pathFindingName);
+      if (behavior.getNodeCount() < 2) {
+        return 0;
+      }
+      let pathLength = 0;
+      let previousNodeX = behavior.getNodeX(0);
+      let previousNodeY = behavior.getNodeY(0);
+      for (let index = 1; index < behavior.getNodeCount(); index++) {
+        const nodeX = behavior.getNodeX(index);
+        const nodeY = behavior.getNodeY(index);
+        pathLength += Math.hypot(nodeX - previousNodeX, nodeY - previousNodeY);
+        previousNodeX = nodeX;
+        previousNodeY = nodeY;
+      }
+      return pathLength;
+    };
+
     let runtimeScene;
     let player;
     beforeEach(function () {
@@ -117,7 +140,7 @@ describe('gdjs.PathfindingRuntimeBehavior', function () {
       player.setPosition(480, 300);
       player.getBehavior(pathFindingName).moveTo(runtimeScene, 720, 300);
       expect(player.getBehavior(pathFindingName).pathFound()).to.be(true);
-      expect(player.getBehavior(pathFindingName).getNodeCount()).to.be(13);
+      expect(getPathLength(player)).to.be(720 - 480);
     });
 
     it('can find a path without any obstacle in the way', function () {
@@ -130,7 +153,7 @@ describe('gdjs.PathfindingRuntimeBehavior', function () {
       player.setPosition(480, 300);
       player.getBehavior(pathFindingName).moveTo(runtimeScene, 720, 300);
       expect(player.getBehavior(pathFindingName).pathFound()).to.be(true);
-      expect(player.getBehavior(pathFindingName).getNodeCount()).to.be(13);
+      expect(getPathLength(player)).to.be(720 - 480);
     });
 
     it("mustn't find a path to the obstacle inside", function () {
@@ -155,101 +178,9 @@ describe('gdjs.PathfindingRuntimeBehavior', function () {
       player.setPosition(480, 300);
       player.getBehavior(pathFindingName).moveTo(runtimeScene, 720, 300);
       expect(player.getBehavior(pathFindingName).pathFound()).to.be(true);
-      expect(player.getBehavior(pathFindingName).getNodeCount()).to.be.above(
-        13
-      );
+      expect(getPathLength(player)).to.be.above(720 - 480 + 50);
     });
 
-    if (allowDiagonals) {
-      [20, 30, 60, 120].forEach((framePerSecond) => {
-        describe(`(${framePerSecond} fps)`, function () {
-          it('can move on the path at the right speed', function () {
-            setFramePerSecond(runtimeScene, framePerSecond);
-            const obstacle = addObstacle(runtimeScene);
-
-            obstacle.setPosition(600, 300);
-            // To ensure obstacles are registered.
-            runtimeScene.renderAndStep(1000 / framePerSecond);
-
-            player.setPosition(480, 300);
-            player.getBehavior(pathFindingName).moveTo(runtimeScene, 720, 300);
-            expect(player.getBehavior(pathFindingName).pathFound()).to.be(true);
-            expect(
-              player.getBehavior(pathFindingName).getNodeCount()
-            ).to.be.above(13);
-
-            // Move on the path and stop before the last 1/10 of second.
-            for (let i = 0; i < (framePerSecond * 17) / 10; i++) {
-              runtimeScene.renderAndStep(1000 / framePerSecond);
-              expect(
-                player.getBehavior(pathFindingName).destinationReached()
-              ).to.be(false);
-            }
-            // The position is the same no matter the frame rate.
-            expect(player.getX()).to.be(720);
-            expect(player.getY()).to.be.within(
-              288.5786437626905 - epsilon,
-              288.5786437626905 + epsilon
-            );
-
-            // Let 1/10 of second pass,
-            // because the calculus interval is not the same for each case.
-            for (let i = 0; i < framePerSecond / 10; i++) {
-              runtimeScene.renderAndStep(1000 / framePerSecond);
-            }
-            // The destination is reached for every frame rate within 1/10 of second.
-            expect(player.getX()).to.be(720);
-            expect(player.getY()).to.be(300);
-            expect(
-              player.getBehavior(pathFindingName).destinationReached()
-            ).to.be(true);
-          });
-        });
-      });
-    } else {
-      [20, 30, 60, 120].forEach((framePerSecond) => {
-        describe(`(${framePerSecond} fps)`, function () {
-          it('can move on the path at the right speed', function () {
-            setFramePerSecond(runtimeScene, framePerSecond);
-            const obstacle = addObstacle(runtimeScene);
-
-            obstacle.setPosition(600, 300);
-            // To ensure obstacles are registered.
-            runtimeScene.renderAndStep(1000 / framePerSecond);
-
-            player.setPosition(480, 300);
-            player.getBehavior(pathFindingName).moveTo(runtimeScene, 720, 300);
-            expect(player.getBehavior(pathFindingName).pathFound()).to.be(true);
-            expect(
-              player.getBehavior(pathFindingName).getNodeCount()
-            ).to.be.above(13);
-
-            // Move on the path and stop before the last 1/10 of second.
-            for (let i = 0; i < (framePerSecond * 20) / 10; i++) {
-              runtimeScene.renderAndStep(1000 / framePerSecond);
-              expect(
-                player.getBehavior(pathFindingName).destinationReached()
-              ).to.be(false);
-            }
-            expect(player.getX()).to.be(710);
-            expect(player.getY()).to.be.within(300 - epsilon, 300 + epsilon);
-
-            // Let 1/10 of second pass,
-            // because the calculus interval is not the same for each case.
-            for (let i = 0; i < (framePerSecond * 1) / 10; i++) {
-              runtimeScene.renderAndStep(1000 / framePerSecond);
-            }
-            // The destination is reached for every frame rate within 1/10 of second.
-            expect(player.getX()).to.be(720);
-            expect(player.getY()).to.be(300);
-            expect(
-              player.getBehavior(pathFindingName).destinationReached()
-            ).to.be(true);
-          });
-        });
-      });
-    }
-
     it('can find a path between 2 obstacles', function () {
       const obstacleTop = addObstacle(runtimeScene);
       const obstacleBottom = addObstacle(runtimeScene);
@@ -262,7 +193,7 @@ describe('gdjs.PathfindingRuntimeBehavior', function () {
       player.setPosition(480, 300);
       player.getBehavior(pathFindingName).moveTo(runtimeScene, 720, 300);
       expect(player.getBehavior(pathFindingName).pathFound()).to.be(true);
-      expect(player.getBehavior(pathFindingName).getNodeCount()).to.be(13);
+      expect(getPathLength(player)).to.be(720 - 480);
     });
 
     it("mustn't find a path to a closed room", function () {
@@ -288,7 +219,15 @@ describe('gdjs.PathfindingRuntimeBehavior', function () {
     describe(`(collisionMethod: ${collisionMethod}, `, function () {
       [false, true].forEach((allowDiagonals) => {
         describe(`(allowDiagonals: ${allowDiagonals})`, function () {
-          doCommonPathFindingTests(collisionMethod, allowDiagonals);
+          [0, 1].forEach((smoothingMaxCellGap) => {
+            describe(`(smoothingMaxCellGap: ${smoothingMaxCellGap})`, function () {
+              doCommonPathFindingTests(
+                collisionMethod,
+                allowDiagonals,
+                smoothingMaxCellGap
+              );
+            });
+          });
         });
       });
     });

Extensions/PathfindingBehavior/tests/legacypathfindingruntimebehavior.spec.js

@@ -1,6 +1,8 @@
 // @ts-check
 describe('gdjs.PathfindingRuntimeBehavior', function () {
   // limit tests cases on the legacy collision methods.
+  // Note that the legacy collision mode is still the only mode that exists
+  // because the new one were never merged.
   let doLegacyPathFindingTests = (
     cellSize,
     objectCenteredOnCells,

Extensions/Physics2Behavior/JsExtension.js

@@ -200,6 +200,7 @@ module.exports = {
             .toString(10)
         )
         .setType('Number')
+        .setMeasurementUnit(gd.MeasurementUnit.getPixel())
         .setLabel('Shape Dimension A');
       behaviorProperties
         .getOrCreate('shapeDimensionB')
@@ -210,6 +211,7 @@ module.exports = {
             .toString(10)
         )
         .setType('Number')
+        .setMeasurementUnit(gd.MeasurementUnit.getPixel())
         .setLabel('Shape Dimension B');
       behaviorProperties
         .getOrCreate('shapeOffsetX')
@@ -217,6 +219,7 @@ module.exports = {
           behaviorContent.getChild('shapeOffsetX').getDoubleValue().toString(10)
         )
         .setType('Number')
+        .setMeasurementUnit(gd.MeasurementUnit.getPixel())
         .setLabel('Shape Offset X');
       behaviorProperties
         .getOrCreate('shapeOffsetY')
@@ -224,6 +227,7 @@ module.exports = {
           behaviorContent.getChild('shapeOffsetY').getDoubleValue().toString(10)
         )
         .setType('Number')
+        .setMeasurementUnit(gd.MeasurementUnit.getPixel())
         .setLabel('Shape Offset Y');
       behaviorProperties
         .getOrCreate('polygonOrigin')
@@ -373,13 +377,15 @@ module.exports = {
         .setValue(
           sharedContent.getChild('gravityX').getDoubleValue().toString(10)
         )
-        .setType('Number');
+        .setType('Number')
+        .setMeasurementUnit(gd.MeasurementUnit.getNewton());
       sharedProperties
         .getOrCreate('gravityY')
         .setValue(
           sharedContent.getChild('gravityY').getDoubleValue().toString(10)
         )
-        .setType('Number');
+        .setType('Number')
+        .setMeasurementUnit(gd.MeasurementUnit.getNewton());
       sharedProperties
         .getOrCreate('scaleX')
         .setValue(
@@ -435,7 +441,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Gravity to compare to (in pixels per second per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('getGravityX');
 
@@ -464,7 +475,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Gravity to compare to (in pixels per second per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('getGravityY');
 
@@ -514,7 +530,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Time scale to compare to (1 by default)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('getTimeScale');
 
@@ -535,7 +556,7 @@ module.exports = {
       )
       .addParameter('objectList', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .addParameter('expression', _('Value'))
+      .addParameter('expression', _('Time scale (1 by default)'))
       .getCodeExtraInformation()
       .setIncludeFile('Extensions/Physics2Behavior/physics2tools.js')
       .setFunctionName('gdjs.physics2.setTimeScale');
@@ -782,7 +803,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Scale (1 by default)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('setShapeScale')
       .setGetter('getShapeScale');
@@ -799,7 +825,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('getDensity');
 
@@ -817,7 +846,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setDensity')
       .setGetter('getDensity');
@@ -847,7 +879,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('getFriction');
 
@@ -865,7 +900,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setFriction')
       .setGetter('getFriction');
@@ -895,7 +933,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('getRestitution');
 
@@ -913,7 +954,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setRestitution')
       .setGetter('getRestitution');
@@ -943,7 +987,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('getLinearDamping');
 
@@ -961,7 +1008,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setLinearDamping')
       .setGetter('getLinearDamping');
@@ -991,7 +1041,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('getAngularDamping');
 
@@ -1009,7 +1062,10 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setAngularDamping')
       .setGetter('getAngularDamping');
@@ -1039,7 +1095,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Scale to compare to (1 by default)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('getGravityScale');
 
@@ -1057,7 +1118,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Scale (1 by default)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('setGravityScale')
       .setGetter('getGravityScale');
@@ -1161,7 +1227,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Speed to compare to (in pixels per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('getLinearVelocityX');
 
@@ -1177,7 +1248,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Speed (in pixels per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('setLinearVelocityX')
       .setGetter('getLinearVelocityX');
@@ -1207,7 +1283,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Speed to compare to (in pixels per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('getLinearVelocityY');
 
@@ -1223,7 +1304,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Speed (in pixels per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('setLinearVelocityY')
       .setGetter('getLinearVelocityY');
@@ -1253,7 +1339,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Speed to compare to (in pixels per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('getLinearVelocityLength');
 
@@ -1282,7 +1373,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Angular speed to compare to (in degrees per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('getAngularVelocity');
 
@@ -1298,7 +1394,12 @@ module.exports = {
       )
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions().setDescription(
+          _('Angular speed (in degrees per second)')
+        )
+      )
       .getCodeExtraInformation()
       .setFunctionName('setAngularVelocity')
       .setGetter('getAngularVelocity');
@@ -1487,7 +1588,7 @@ module.exports = {
       .getCodeExtraInformation()
       .setFunctionName('applyAngularImpulse');
 
-      aut
+    aut
       .addExpression(
         'Mass',
         _('Mass'),
@@ -1641,7 +1742,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('getJointReactionForce');
 
@@ -1672,7 +1776,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardRelationalOperatorParameters('number')
+      .useStandardRelationalOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('getJointReactionTorque');
 
@@ -1776,7 +1883,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setDistanceJointLength')
       .setGetter('getDistanceJointLength');
@@ -1808,7 +1918,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setDistanceJointFrequency')
       .setGetter('getDistanceJointFrequency');
@@ -1840,7 +1953,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setDistanceJointDampingRatio')
       .setGetter('getDistanceJointDampingRatio');
@@ -2135,7 +2251,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setRevoluteJointMotorSpeed')
       .setGetter('getRevoluteJointMotorSpeed');
@@ -2167,7 +2286,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setRevoluteJointMaxMotorTorque')
       .setGetter('getRevoluteJointMaxMotorTorque');
@@ -2447,7 +2569,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setPrismaticJointMotorSpeed')
       .setGetter('getPrismaticJointMotorSpeed');
@@ -2479,7 +2604,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setPrismaticJointMaxMotorForce')
       .setGetter('getPrismaticJointMaxMotorForce');
@@ -2749,7 +2877,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setGearJointRatio')
       .setGetter('getGearJointRatio');
@@ -2876,7 +3007,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setMouseJointMaxForce')
       .setGetter('getMouseJointMaxForce');
@@ -2908,7 +3042,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setMouseJointFrequency')
       .setGetter('getMouseJointFrequency');
@@ -2940,7 +3077,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setMouseJointDampingRatio')
       .setGetter('getMouseJointDampingRatio');
@@ -3109,7 +3249,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setWheelJointMotorSpeed')
       .setGetter('getWheelJointMotorSpeed');
@@ -3141,7 +3284,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setWheelJointMaxMotorTorque')
       .setGetter('getWheelJointMaxMotorTorque');
@@ -3187,7 +3333,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setWheelJointFrequency')
       .setGetter('getWheelJointFrequency');
@@ -3219,7 +3368,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setWheelJointDampingRatio')
       .setGetter('getWheelJointDampingRatio');
@@ -3315,7 +3467,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setWeldJointFrequency')
       .setGetter('getWeldJointFrequency');
@@ -3347,7 +3502,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setWeldJointDampingRatio')
       .setGetter('getWeldJointDampingRatio');
@@ -3422,7 +3580,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setRopeJointMaxLength')
       .setGetter('getRopeJointMaxLength');
@@ -3490,7 +3651,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setFrictionJointMaxForce')
       .setGetter('getFrictionJointMaxForce');
@@ -3522,7 +3686,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setFrictionJointMaxTorque')
       .setGetter('getFrictionJointMaxTorque');
@@ -3639,7 +3806,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setMotorJointAngularOffset')
       .setGetter('getMotorJointAngularOffset');
@@ -3671,7 +3841,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setMotorJointMaxForce')
       .setGetter('getMotorJointMaxForce');
@@ -3703,7 +3876,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setMotorJointMaxTorque')
       .setGetter('getMotorJointMaxTorque');
@@ -3735,7 +3911,10 @@ module.exports = {
       .addParameter('object', _('Object'), '', false)
       .addParameter('behavior', _('Behavior'), 'Physics2Behavior')
       .addParameter('expression', _('Joint ID'))
-      .useStandardOperatorParameters('number')
+      .useStandardOperatorParameters(
+        'number',
+        gd.ParameterOptions.makeNewOptions()
+      )
       .getCodeExtraInformation()
       .setFunctionName('setMotorJointCorrectionFactor')
       .setGetter('getMotorJointCorrectionFactor');
@@ -3761,7 +3940,7 @@ module.exports = {
         _('Collision'),
         _('Check if two objects collide.'),
         _('_PARAM0_ is colliding with _PARAM2_'),
-       '',
+        '',
         'res/physics32.png',
         'res/physics32.png'
       )

Extensions/Physics2Behavior/physics2runtimebehavior.ts

@@ -825,8 +825,12 @@ namespace gdjs {
     }
 
     doStepPreEvents(instanceContainer: gdjs.RuntimeInstanceContainer) {
-      // Step the world if not done this frame yet
-      if (!this._sharedData.stepped) {
+      // Step the world if not done this frame yet.
+      // Don't step at the first frame to allow events to handle overlapping objects.
+      if (
+        !this._sharedData.stepped &&
+        !instanceContainer.getScene().getTimeManager().isFirstFrame()
+      ) {
         // Reset started and ended contacts array for all physics instances.
         this._sharedData.resetStartedAndEndedCollisions();
         this._sharedData.updateBodiesFromObjects();

Extensions/Physics2Behavior/tests/physics2runtimebehavior.spec.js

@@ -64,7 +64,7 @@ describe('Physics2RuntimeBehavior', () => {
       resources: { resources: [] },
       properties: { windowWidth: 1000, windowHeight: 1000 },
     });
-    const runtimeScene = new gdjs.RuntimeScene(runtimeGame);
+    const runtimeScene = new gdjs.TestRuntimeScene(runtimeGame);
     runtimeScene.loadFromScene({
       layers: [
         {
@@ -236,6 +236,39 @@ describe('Physics2RuntimeBehavior', () => {
       expect(behavior.getRestitution()).to.be(0.5);
     });
 
+    it('should not resolve collision before the 1st frame events', () => {
+      const fps = 60;
+      runtimeScene._timeManager.getElapsedTime = function () {
+        return (1 / fps) * 1000;
+      };
+
+      // Create objects in contact
+      const {
+        object: object1,
+        behavior: object1Behavior,
+      } = createObjectWithPhysicsBehavior(runtimeScene, {
+        bodyType: 'Dynamic',
+      });
+      object1.setPosition(10, 0);
+      const {
+        object: object2,
+        behavior: object2Behavior,
+      } = createObjectWithPhysicsBehavior(runtimeScene, {
+        bodyType: 'Static',
+        restitution: 0,
+      });
+      object2.setPosition(20, 0);
+
+      // First frame
+      runtimeScene.renderAndStep(1000 / fps);
+
+      // The object has not moved.
+      expect(object1.getX()).to.be(10);
+      expect(object1.getY()).to.be(0);
+      expect(object2.getX()).to.be(20);
+      expect(object2.getY()).to.be(0);
+    });
+
     it('should clear contacts when deactivating the physics2 behavior', () => {
       const fps = 60;
       runtimeGame.setGameResolutionSize(1000, 1000);
@@ -243,6 +276,9 @@ describe('Physics2RuntimeBehavior', () => {
         return (1 / fps) * 1000;
       };
 
+      // The behavior doesn't call Box2D step at the 1st frame.
+      runtimeScene.renderAndStep(1000 / fps);
+
       // Create objects not in contact
       const {
         object: object1,
@@ -271,11 +307,10 @@ describe('Physics2RuntimeBehavior', () => {
       ).to.be(true);
 
       // Put objects in contact and assert collision started during the frame
-      runtimeScene.setEventsFunction(() => {
+      runtimeScene.renderAndStepWithEventsFunction(1000 / fps, () => {
         object1.setPosition(10, 0);
         object2.setPosition(20, 0);
       });
-      runtimeScene.renderAndStep(1000 / fps);
 
       // After post event, collision should be present
       assertCollision(object1, object2, {
@@ -284,9 +319,6 @@ describe('Physics2RuntimeBehavior', () => {
         stopped: false,
       });
 
-      // Reset scene events
-      runtimeScene.setEventsFunction(() => {});
-
       // Deactivate physics behavior and test that collisions are cleared.
       object1.activateBehavior('Physics2', false);
       assertCollision(object1, object2, {
@@ -424,33 +456,28 @@ describe('Physics2RuntimeBehavior', () => {
       movingObjectBehavior.setLinearVelocityY(40000);
 
       let hasBounced = false;
-      let stepIndex = 0;
-
-      runtimeScene.setEventsFunction(() => {
-        if (movingObjectBehavior.getLinearVelocityY() > 0) {
-          // If the moving object has a positive velocity, it hasn't bounced
-          // on the static object
-          assertCollision(movingObject, staticObject, {
-            started: false,
-            collision: false,
-            stopped: false,
-          });
-        } else {
-          hasBounced = true;
-          expect(movingObject.getY() < staticObject.getY()).to.be(true);
-          assertCollision(movingObject, staticObject, {
-            started: true,
-            collision: true,
-            stopped: true,
-          });
-        }
-      });
-      while (stepIndex < 10 && !hasBounced) {
-        runtimeScene.renderAndStep(1000 / fps);
-        stepIndex++;
+      for (let stepIndex = 0; stepIndex < 10 && !hasBounced; stepIndex++) {
+        runtimeScene.renderAndStepWithEventsFunction(1000 / fps, () => {
+          if (movingObjectBehavior.getLinearVelocityY() > 0) {
+            // If the moving object has a positive velocity, it hasn't bounced
+            // on the static object
+            assertCollision(movingObject, staticObject, {
+              started: false,
+              collision: false,
+              stopped: false,
+            });
+          } else {
+            hasBounced = true;
+            expect(movingObject.getY() < staticObject.getY()).to.be(true);
+            assertCollision(movingObject, staticObject, {
+              started: true,
+              collision: true,
+              stopped: true,
+            });
+          }
+        });
       }
 
-      runtimeScene.setEventsFunction(() => {});
       runtimeScene.renderAndStep(1000 / fps);
       assertCollision(movingObject, staticObject, {
         started: false,
@@ -486,32 +513,31 @@ describe('Physics2RuntimeBehavior', () => {
       movingObjectBehavior.setLinearVelocityY(40000);
 
       let hasBegunBouncing = false;
-      let stepIndex = 0;
-
-      runtimeScene.setEventsFunction(() => {
-        if (movingObjectBehavior.getLinearVelocityY() > 0) {
-          // If the moving object has a positive velocity, it hasn't bounced
-          // on the static object
-          assertCollision(movingObject, staticObject, {
-            started: false,
-            collision: false,
-            stopped: false,
-          });
-        } else {
-          hasBegunBouncing = true;
-          // At first frame, collision should have only started
-          expect(movingObject.getY() < staticObject.getY()).to.be(true);
-          assertCollision(movingObject, staticObject, {
-            started: true,
-            collision: true,
-            stopped: false,
-          });
-        }
-      });
-
-      while (stepIndex < 10 && !hasBegunBouncing) {
-        runtimeScene.renderAndStep(1000 / fps);
-        stepIndex++;
+      for (
+        let stepIndex = 0;
+        stepIndex < 10 && !hasBegunBouncing;
+        stepIndex++
+      ) {
+        runtimeScene.renderAndStepWithEventsFunction(1000 / fps, () => {
+          if (movingObjectBehavior.getLinearVelocityY() > 0) {
+            // If the moving object has a positive velocity, it hasn't bounced
+            // on the static object
+            assertCollision(movingObject, staticObject, {
+              started: false,
+              collision: false,
+              stopped: false,
+            });
+          } else {
+            hasBegunBouncing = true;
+            // At first frame, collision should have only started
+            expect(movingObject.getY() < staticObject.getY()).to.be(true);
+            assertCollision(movingObject, staticObject, {
+              started: true,
+              collision: true,
+              stopped: false,
+            });
+          }
+        });
       }
 
       if (!hasBegunBouncing) {
@@ -522,8 +548,7 @@ describe('Physics2RuntimeBehavior', () => {
 
       // At next frame, end of collision should be detected
       let hasFinishedBouncing = false;
-
-      runtimeScene.setEventsFunction(() => {
+      runtimeScene.renderAndStepWithEventsFunction(1000 / fps, () => {
         hasFinishedBouncing = true;
         assertCollision(movingObject, staticObject, {
           started: false,
@@ -532,8 +557,6 @@ describe('Physics2RuntimeBehavior', () => {
         });
       });
 
-      runtimeScene.renderAndStep(1000 / fps);
-
       if (!hasFinishedBouncing) {
         throw new Error('End of contact was not detected, nothing was tested.');
       }
@@ -546,6 +569,9 @@ describe('Physics2RuntimeBehavior', () => {
         return (1 / fps) * 1000;
       };
 
+      // The behavior doesn't call Box2D step at the 1st frame.
+      runtimeScene.renderAndStep(1000 / fps);
+
       const {
         behavior: movingObjectBehavior,
         object: movingObject,
@@ -567,7 +593,7 @@ describe('Physics2RuntimeBehavior', () => {
         stopped: false,
       });
 
-      runtimeScene.setEventsFunction(() => {
+      runtimeScene.renderAndStepWithEventsFunction(1000 / fps, () => {
         // Manually call onContactEnd and onContactBegin methods to simulate
         // a loss of contact followed by a contact beginning during the preEvent.
         movingObject
@@ -584,7 +610,6 @@ describe('Physics2RuntimeBehavior', () => {
           stopped: false,
         });
       });
-      runtimeScene.renderAndStep(1000 / fps);
     });
 
     it('should not detect a new contact if the contact ended and jittered.', () => {
@@ -594,6 +619,9 @@ describe('Physics2RuntimeBehavior', () => {
         return (1 / fps) * 1000;
       };
 
+      // The behavior doesn't call Box2D step at the 1st frame.
+      runtimeScene.renderAndStep(1000 / fps);
+
       const {
         behavior: movingObjectBehavior,
         object: movingObject,
@@ -615,7 +643,7 @@ describe('Physics2RuntimeBehavior', () => {
         stopped: false,
       });
 
-      runtimeScene.setEventsFunction(() => {
+      runtimeScene.renderAndStepWithEventsFunction(1000 / fps, () => {
         // Manually call onContactEnd and onContactBegin methods to simulate
         // a loss of contact followed by a contact beginning and another loss
         // of contact during the event.
@@ -637,7 +665,6 @@ describe('Physics2RuntimeBehavior', () => {
           stopped: true,
         });
       });
-      runtimeScene.renderAndStep(1000 / fps);
     });
 
     it('it should end collision on resize (body updated in pre-event).', () => {
@@ -647,6 +674,9 @@ describe('Physics2RuntimeBehavior', () => {
         return (1 / fps) * 1000;
       };
 
+      // The behavior doesn't call Box2D step at the 1st frame.
+      runtimeScene.renderAndStep(1000 / fps);
+
       const {
         behavior: movingObjectBehavior,
         object: movingObject,
@@ -668,18 +698,15 @@ describe('Physics2RuntimeBehavior', () => {
       });
 
       // Resize.
-      runtimeScene.setEventsFunction(() => {
+      runtimeScene.renderAndStepWithEventsFunction(1000 / fps, () => {
         movingObject.setCustomWidthAndHeight(5, 5);
       });
-
-      runtimeScene.renderAndStep(1000 / fps);
       assertCollision(movingObject, staticObject, {
         started: false,
         collision: true,
         stopped: false,
       });
 
-      runtimeScene.setEventsFunction(() => {});
       runtimeScene.renderAndStep(1000 / fps);
       assertCollision(movingObject, staticObject, {
         started: false,
@@ -695,6 +722,9 @@ describe('Physics2RuntimeBehavior', () => {
         return (1 / fps) * 1000;
       };
 
+      // The behavior doesn't call Box2D step at the 1st frame.
+      runtimeScene.renderAndStep(1000 / fps);
+
       const {
         behavior: movingObjectBehavior,
         object: movingObject,
@@ -716,13 +746,11 @@ describe('Physics2RuntimeBehavior', () => {
         stopped: false,
       });
 
-      // Destroy (postEvent operation).
-      runtimeScene.setEventsFunction(() => {
+      // Destroy (handled by postEvent).
+      runtimeScene.renderAndStepWithEventsFunction(1000 / fps, () => {
         movingObject.deleteFromScene(runtimeScene);
       });
 
-      runtimeScene.renderAndStep(1000 / fps);
-
       // Collision should be reset on destroyed object and
       // added to contactsEndedThisFrame array of the other object.
       assertCollision(movingObject, staticObject, {

Extensions/PhysicsBehavior/Extension.cpp

@@ -337,7 +337,8 @@ void DeclarePhysicsBehaviorExtension(gd::PlatformExtension& extension) {
            "res/physics16.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PhysicsBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .AddCodeOnlyParameter("currentScene", "")
         .SetFunctionName("GetLinearVelocityX");
 
@@ -351,7 +352,8 @@ void DeclarePhysicsBehaviorExtension(gd::PlatformExtension& extension) {
            "res/physics16.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PhysicsBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .AddCodeOnlyParameter("currentScene", "")
         .SetFunctionName("GetLinearVelocityY");
 
@@ -364,7 +366,8 @@ void DeclarePhysicsBehaviorExtension(gd::PlatformExtension& extension) {
                      "res/physics16.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PhysicsBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .AddCodeOnlyParameter("currentScene", "")
         .SetFunctionName("GetLinearVelocity");
 
@@ -390,7 +393,8 @@ void DeclarePhysicsBehaviorExtension(gd::PlatformExtension& extension) {
                      "res/physics16.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PhysicsBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .AddCodeOnlyParameter("currentScene", "")
         .SetFunctionName("GetAngularVelocity");
 
@@ -403,7 +407,8 @@ void DeclarePhysicsBehaviorExtension(gd::PlatformExtension& extension) {
                      "res/physics16.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PhysicsBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .AddCodeOnlyParameter("currentScene", "")
         .SetFunctionName("GetLinearDamping");
 
@@ -445,7 +450,8 @@ void DeclarePhysicsBehaviorExtension(gd::PlatformExtension& extension) {
                      "res/physics16.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PhysicsBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .AddCodeOnlyParameter("currentScene", "")
         .SetFunctionName("GetAngularDamping");
 
@@ -516,7 +522,8 @@ void DeclarePhysicsBehaviorExtension(gd::PlatformExtension& extension) {
            "res/physics16.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PhysicsBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .AddCodeOnlyParameter("currentScene", "")
         .SetFunctionName("GetPolygonScaleX");
 
@@ -530,7 +537,8 @@ void DeclarePhysicsBehaviorExtension(gd::PlatformExtension& extension) {
            "res/physics16.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PhysicsBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number", gd::ParameterOptions::MakeNewOptions())
         .AddCodeOnlyParameter("currentScene", "")
         .SetFunctionName("GetPolygonScaleY");
 

Extensions/PlatformBehavior/Extension.cpp

@@ -5,11 +5,10 @@ Copyright (c) 2014-2016 Florian Rival (Florian.Rival@gmail.com)
 This project is released under the MIT License.
 */
 
-#include "PlatformBehavior.h"
-
 #include "GDCore/Extensions/PlatformExtension.h"
-#include "GDCore/Tools/Localization.h"
 #include "GDCore/Project/BehaviorsSharedData.h"
+#include "GDCore/Tools/Localization.h"
+#include "PlatformBehavior.h"
 #include "PlatformerObjectBehavior.h"
 
 void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
@@ -134,61 +133,71 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
 
     aut.AddCondition("Gravity",
                      _("Gravity"),
-                     _("Compare the gravity applied on the object (in pixels "
-                       "per second per second)."),
+                     _("Compare the gravity applied on the object."),
                      _("the gravity"),
                      _("Options"),
                      "CppPlatform/Extensions/platformerobjecticon.png",
                      "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Gravity to compare to (in pixels per "
+                  "second per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("GetGravity");
 
     aut.AddAction("Gravity",
                   _("Gravity"),
-                  _("Change the gravity applied on an object (in pixels per "
-                    "second per second)."),
+                  _("Change the gravity applied on an object."),
                   _("the gravity"),
                   _("Options"),
                   "CppPlatform/Extensions/platformerobjecticon.png",
                   "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Gravity (in pixels per "
+                  "second per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("SetGravity")
         .SetGetter("GetGravity");
 
-    aut.AddCondition(
-           "MaxFallingSpeed",
-           _("Maximum falling speed"),
-           _("Compare the maximum falling speed of the object (in pixels per "
-             "second)."),
-           _("the maximum falling speed"),
-           _("Options"),
-           "CppPlatform/Extensions/platformerobjecticon.png",
-           "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddCondition("MaxFallingSpeed",
+                     _("Maximum falling speed"),
+                     _("Compare the maximum falling speed of the object."),
+                     _("the maximum falling speed"),
+                     _("Options"),
+                     "CppPlatform/Extensions/platformerobjecticon.png",
+                     "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Max speed to compare to (in pixels per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("GetMaxFallingSpeed");
 
-    aut.AddAction(
-           "MaxFallingSpeed",
-           _("Maximum falling speed"),
-           _("Change the maximum falling speed of an object (in pixels per "
-             "second)."),
-           _("the maximum falling speed"),
-           _("Options"),
-           "CppPlatform/Extensions/platformerobjecticon.png",
-           "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddAction("MaxFallingSpeed",
+                  _("Maximum falling speed"),
+                  _("Change the maximum falling speed of an object."),
+                  _("the maximum falling speed"),
+                  _("Options"),
+                  "CppPlatform/Extensions/platformerobjecticon.png",
+                  "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
-        .AddParameter("yesorno", _("If jumping, try to preserve the current speed in the air"))
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Max speed (in pixels per second)")))
+        .AddParameter(
+            "yesorno",
+            _("If jumping, try to preserve the current speed in the air"))
         .MarkAsAdvanced()
         .SetFunctionName("SetMaxFallingSpeed")
         .SetGetter("GetMaxFallingSpeed");
@@ -203,145 +212,170 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
                      "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed to compare to (in pixels per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("GetLadderClimbingSpeed");
 
     aut.AddAction("LadderClimbingSpeed",
                   _("Ladder climbing speed"),
-                  _("Change the ladder climbing speed (in pixels per "
-                    "second)."),
+                  _("Change the ladder climbing speed."),
                   _("the ladder climbing speed"),
                   _("Options"),
                   "CppPlatform/Extensions/platformerobjecticon.png",
                   "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed (in pixels per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("SetLadderClimbingSpeed")
         .SetGetter("GetLadderClimbingSpeed");
 
     aut.AddCondition("Acceleration",
                      _("Acceleration"),
-                     _("Compare the horizontal acceleration of the object (in pixels per "
-                       "second per second)."),
+                     _("Compare the horizontal acceleration of the object."),
                      _("the horizontal acceleration"),
                      _("Options"),
                      "CppPlatform/Extensions/platformerobjecticon.png",
                      "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Acceleration to compare to (in pixels per "
+                  "second per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("GetAcceleration");
 
     aut.AddAction("Acceleration",
                   _("Acceleration"),
-                  _("Change the horizontal acceleration of an object (in pixels per "
-                    "second per second)."),
+                  _("Change the horizontal acceleration of an object."),
                   _("the horizontal acceleration"),
                   _("Options"),
                   "CppPlatform/Extensions/platformerobjecticon.png",
                   "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Acceleration (in pixels per "
+                  "second per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("SetAcceleration")
         .SetGetter("GetAcceleration");
 
     aut.AddCondition("Deceleration",
                      _("Deceleration"),
-                     _("Compare the horizontal deceleration of the object (in pixels per "
-                       "second per second)."),
+                     _("Compare the horizontal deceleration of the object."),
                      _("the horizontal deceleration"),
                      _("Options"),
                      "CppPlatform/Extensions/platformerobjecticon.png",
                      "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Deceleration to compare to (in pixels per "
+                  "second per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("GetDeceleration");
 
     aut.AddAction("Deceleration",
                   _("Deceleration"),
-                  _("Change the horizontal deceleration of an object (in pixels per "
-                    "second per second)."),
+                  _("Change the horizontal deceleration of an object."),
                   _("the horizontal deceleration"),
                   _("Options"),
                   "CppPlatform/Extensions/platformerobjecticon.png",
                   "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Deceleration (in pixels per "
+                  "second per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("SetDeceleration")
         .SetGetter("GetDeceleration");
 
-    aut.AddCondition(
-           "MaxSpeed",
-           _("Maximum horizontal speed"),
-           _("Compare the maximum horizontal speed of the object (in pixels per second)."),
-           _("the maximum horizontal speed"),
-           _("Options"),
-           "CppPlatform/Extensions/platformerobjecticon.png",
-           "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddCondition("MaxSpeed",
+                     _("Maximum horizontal speed"),
+                     _("Compare the maximum horizontal speed of the object."),
+                     _("the maximum horizontal speed"),
+                     _("Options"),
+                     "CppPlatform/Extensions/platformerobjecticon.png",
+                     "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Max speed to compare to (in pixels per second)")))
         .SetFunctionName("GetMaxSpeed");
 
-    aut.AddAction(
-           "MaxSpeed",
-           _("Maximum horizontal speed"),
-           _("Change the maximum horizontal speed of an object (in pixels per second)."),
-           _("the maximum horizontal speed"),
-           _("Options"),
-           "CppPlatform/Extensions/platformerobjecticon.png",
-           "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddAction("MaxSpeed",
+                  _("Maximum horizontal speed"),
+                  _("Change the maximum horizontal speed of an object."),
+                  _("the maximum horizontal speed"),
+                  _("Options"),
+                  "CppPlatform/Extensions/platformerobjecticon.png",
+                  "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Max speed (in pixels per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("SetMaxSpeed")
         .SetGetter("GetMaxSpeed");
 
-    aut.AddCondition(
-           "JumpSpeed",
-           _("Jump speed"),
-           _("Compare the jump speed of the object (in pixels per second)."
-             "Its value is always positive."),
-           _("the jump speed"),
-           _("Options"),
-           "CppPlatform/Extensions/platformerobjecticon.png",
-           "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddCondition("JumpSpeed",
+                     _("Jump speed"),
+                     _("Compare the jump speed of the object."
+                       "Its value is always positive."),
+                     _("the jump speed"),
+                     _("Options"),
+                     "CppPlatform/Extensions/platformerobjecticon.png",
+                     "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed to compare to (in pixels per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("GetJumpSpeed");
 
-    aut.AddAction(
-           "JumpSpeed",
-           _("Jump speed"),
-           _("Change the jump speed of an object (in pixels per second). "
-             "Its value is always positive."),
-           _("the jump speed"),
-           _("Options"),
-           "CppPlatform/Extensions/platformerobjecticon.png",
-           "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddAction("JumpSpeed",
+                  _("Jump speed"),
+                  _("Change the jump speed of an object. "
+                    "Its value is always positive."),
+                  _("the jump speed"),
+                  _("Options"),
+                  "CppPlatform/Extensions/platformerobjecticon.png",
+                  "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed (in pixels per second)")))
         .SetFunctionName("SetJumpSpeed")
         .SetGetter("GetJumpSpeed");
 
     aut.AddCondition(
            "JumpSustainTime",
            _("Jump sustain time"),
-           _("Compare the jump sustain time of the object (in seconds)."
+           _("Compare the jump sustain time of the object."
              "This is the time during which keeping the jump button held "
              "allow the initial jump speed to be maintained."),
            _("the jump sustain time"),
@@ -350,21 +384,28 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
            "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Duration to compare to (in seconds)")))
         .MarkAsAdvanced();
 
-    aut.AddAction("JumpSustainTime",
-                  _("Jump sustain time"),
-                  _("Change the jump sustain time of an object (in seconds). "
-                  "This is the time during which keeping the jump button held "
-                  "allow the initial jump speed to be maintained."),
-                  _("the jump sustain time"),
-                  _("Options"),
-                  "CppPlatform/Extensions/platformerobjecticon.png",
-                  "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddAction(
+           "JumpSustainTime",
+           _("Jump sustain time"),
+           _("Change the jump sustain time of an object."
+             "This is the time during which keeping the jump button held "
+             "allow the initial jump speed to be maintained."),
+           _("the jump sustain time"),
+           _("Options"),
+           "CppPlatform/Extensions/platformerobjecticon.png",
+           "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number");
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Duration (in seconds)")));
 
     aut.AddAction(
            "SetCanJump",
@@ -400,7 +441,8 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
            "AbortJump",
            _("Abort jump"),
            _("Abort the current jump and stop the object vertically. "
-             "This action doesn't have any effect when the character is not jumping."),
+             "This action doesn't have any effect when the character is not "
+             "jumping."),
            _("Abort the current jump of _PARAM0_"),
            _(""),
            "CppPlatform/Extensions/platformerobjecticon.png",
@@ -589,11 +631,28 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
         .MarkAsSimple()
         .SetFunctionName("canGrabPlatforms");
 
+    aut.AddCondition("CurrentFallSpeed",
+                     _("Current falling speed"),
+                     _("Compare the current falling speed of the object. Its "
+                       "value is always positive."),
+                     _("the current falling speed"),
+                     _(""),
+                     "CppPlatform/Extensions/platformerobjecticon.png",
+                     "CppPlatform/Extensions/platformerobjecticon.png")
+        .AddParameter("object", _("Object"))
+        .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed to compare to (in pixels per second)")))
+        .MarkAsAdvanced()
+        .SetFunctionName("GetCurrentFallSpeed");
+
     aut.AddScopedAction(
            "SetCurrentFallSpeed",
            _("Current falling speed"),
-           _("Change the current falling speed of the object (in pixels per "
-             "second). This action doesn't have any effect when the character "
+           _("Change the current falling speed of the object. This action "
+             "doesn't have any effect when the character "
              "is not falling or is in the first phase of a jump."),
            _("the current falling speed"),
            _(""),
@@ -601,85 +660,70 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
            "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed (in pixels per second)")))
         .MarkAsAdvanced();
 
-    aut.AddCondition(
-           "CurrentFallSpeed",
-           _("Current falling speed"),
-           _("Compare the current falling speed of the object (in pixels per "
-             "second). Its value is always positive."),
-           _("the current falling speed"),
-           _(""),
-           "CppPlatform/Extensions/platformerobjecticon.png",
-           "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddCondition("CurrentJumpSpeed",
+                     _("Current jump speed"),
+                     _("Compare the current jump speed of the object. Its "
+                       "value is always positive."),
+                     _("the current jump speed"),
+                     _(""),
+                     "CppPlatform/Extensions/platformerobjecticon.png",
+                     "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
-        .MarkAsAdvanced()
-        .SetFunctionName("GetCurrentFallSpeed");
-
-    aut.AddCondition(
-           "CurrentJumpSpeed",
-           _("Current jump speed"),
-           _("Compare the current jump speed of the object (in pixels per "
-             "second). Its value is always positive."),
-           _("the current jump speed"),
-           _(""),
-           "CppPlatform/Extensions/platformerobjecticon.png",
-           "CppPlatform/Extensions/platformerobjecticon.png")
-        .AddParameter("object", _("Object"))
-        .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed to compare to (in pixels per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("GetCurrentJumpSpeed");
 
-    aut.AddScopedAction("SetCurrentSpeed",
-                     _("Current horizontal speed"),
-                     _("Change the current horizontal speed of the object "
-                     "(in pixels per second). The object moves to the left "
-                     "with negative values and to the right with positive ones"),
-                     _("the current horizontal speed"),
-                     _(""),
-                     "CppPlatform/Extensions/platformerobjecticon.png",
-                     "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddScopedAction(
+           "SetCurrentSpeed",
+           _("Current horizontal speed"),
+           _("Change the current horizontal speed of the object. The object "
+             "moves to the left with negative values and to the right with "
+             "positive ones"),
+           _("the current horizontal speed"),
+           _(""),
+           "CppPlatform/Extensions/platformerobjecticon.png",
+           "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardOperatorParameters("number")
+        .UseStandardOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed (in pixels per second)")))
         .MarkAsAdvanced();
 
-    aut.AddScopedAction("FollowCurrentPlatform",
-                     _("Follow the floor"),
-                     _("Move the object to follow the platform it's currently" 
-                     "on if any. This action allows to avoid the 1-frame "
-                     "delay induced by the automatic following."),
-                     _("Move _PARAM0_ to follow the floor"),
-                     _(""),
-                     "CppPlatform/Extensions/platformerobjecticon.png",
-                     "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddCondition(
+           "CurrentSpeed",
+           _("Current horizontal speed"),
+           _("Compare the current horizontal speed of the object. The object "
+             "moves to the left "
+             "with negative values and to the right with positive ones"),
+           _("the current horizontal speed"),
+           _(""),
+           "CppPlatform/Extensions/platformerobjecticon.png",
+           "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .MarkAsAdvanced();
-
-    aut.AddCondition("CurrentSpeed",
-                     _("Current horizontal speed"),
-                     _("Compare the current horizontal speed of the object "
-                     "(in pixels per second). The object moves to the left "
-                     "with negative values and to the right with positive ones"),
-                     _("the current horizontal speed"),
-                     _(""),
-                     "CppPlatform/Extensions/platformerobjecticon.png",
-                     "CppPlatform/Extensions/platformerobjecticon.png")
-        .AddParameter("object", _("Object"))
-        .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
-        .UseStandardRelationalOperatorParameters("number")
+        .UseStandardRelationalOperatorParameters(
+            "number",
+            gd::ParameterOptions::MakeNewOptions().SetDescription(
+                _("Speed to compare to (in pixels per second)")))
         .MarkAsAdvanced()
         .SetFunctionName("GetCurrentSpeed");
 
     aut.AddExpression("Gravity",
                       _("Gravity"),
                       _("Return the gravity applied on the object "
-                      "(in pixels per second per second)."),
+                        "(in pixels per second per second)."),
                       _("Options"),
                       "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
@@ -709,7 +753,7 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
     aut.AddExpression("Acceleration",
                       _("Acceleration"),
                       _("Return the horizontal acceleration of the object "
-                      "(in pixels per second per second)."),
+                        "(in pixels per second per second)."),
                       _("Options"),
                       "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
@@ -719,7 +763,7 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
     aut.AddExpression("Deceleration",
                       _("Deceleration"),
                       _("Return the horizontal deceleration of the object "
-                      "(in pixels per second per second)."),
+                        "(in pixels per second per second)."),
                       _("Options"),
                       "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
@@ -736,12 +780,13 @@ void DeclarePlatformBehaviorExtension(gd::PlatformExtension& extension) {
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
         .SetFunctionName("GetMaxSpeed");
 
-    aut.AddExpression("JumpSpeed",
-                      _("Jump speed"),
-                      _("Return the jump speed of the object "
-                        "(in pixels per second). Its value is always positive."),
-                      _("Options"),
-                      "CppPlatform/Extensions/platformerobjecticon.png")
+    aut.AddExpression(
+           "JumpSpeed",
+           _("Jump speed"),
+           _("Return the jump speed of the object "
+             "(in pixels per second). Its value is always positive."),
+           _("Options"),
+           "CppPlatform/Extensions/platformerobjecticon.png")
         .AddParameter("object", _("Object"))
         .AddParameter("behavior", _("Behavior"), "PlatformerObjectBehavior")
         .SetFunctionName("GetJumpSpeed");

Extensions/PlatformBehavior/JsExtension.cpp

@@ -131,14 +131,10 @@ class PlatformBehaviorJsExtension : public gd::PlatformExtension {
           "getCurrentJumpSpeed");
       autExpressions["CurrentJumpSpeed"].SetFunctionName("getCurrentJumpSpeed");
       autActions["PlatformBehavior::SetCanJump"].SetFunctionName("setCanJump");
-      autActions["PlatformBehavior::PlatformerObjectBehavior::SetCanNotAirJump"]
-          .SetFunctionName("setCanNotAirJump");
-      autActions["PlatformBehavior::PlatformerObjectBehavior::AbortJump"]
-          .SetFunctionName("abortJump");
-      autActions
-          ["PlatformBehavior::PlatformerObjectBehavior::FollowCurrentPlatform"]
-              .SetFunctionName("followCurrentPlatformIfAny");
-      autConditions["PlatformBehavior::CanJump"].SetFunctionName("canJump");
+      autActions["PlatformBehavior::PlatformerObjectBehavior::SetCanNotAirJump"].SetFunctionName("setCanNotAirJump");
+      autActions["PlatformBehavior::PlatformerObjectBehavior::AbortJump"].SetFunctionName("abortJump");
+      autConditions["PlatformBehavior::CanJump"].SetFunctionName(
+          "canJump");
       autActions["PlatformBehavior::SimulateLeftKey"].SetFunctionName(
           "simulateLeftKey");
       autActions["PlatformBehavior::SimulateRightKey"].SetFunctionName(

Extensions/PlatformBehavior/PlatformBehavior.cpp

@@ -36,18 +36,24 @@ std::map<gd::String, gd::PropertyDescriptor> PlatformBehavior::GetProperties(
   else if (platformType == "Jumpthru")
     platformTypeStr = _("Jumpthru platform");
 
-  properties[_("Type")]
+  properties["PlatformType"]
+      .SetLabel(_("Type"))
       .SetValue(platformTypeStr)
       .SetType("Choice")
       .AddExtraInfo(_("Platform"))
       .AddExtraInfo(_("Jumpthru platform"))
       .AddExtraInfo(_("Ladder"));
-  properties[_("Ledges can be grabbed")].SetGroup(_("Ledge"))
+  properties["CanBeGrabbed"]
+      .SetLabel(_("Ledges can be grabbed"))
+      .SetGroup(_("Ledge"))
       .SetValue(behaviorContent.GetBoolAttribute("canBeGrabbed", true)
                     ? "true"
                     : "false")
       .SetType("Boolean");
-  properties[_("Grab offset on Y axis")].SetGroup(_("Ledge")).SetValue(
+  properties["YGrabOffset"]
+      .SetLabel(_("Grab offset on Y axis"))
+      .SetGroup(_("Ledge"))
+      .SetValue(
       gd::String::From(behaviorContent.GetDoubleAttribute("yGrabOffset")));
 
   return properties;
@@ -56,16 +62,16 @@ std::map<gd::String, gd::PropertyDescriptor> PlatformBehavior::GetProperties(
 bool PlatformBehavior::UpdateProperty(gd::SerializerElement& behaviorContent,
                                       const gd::String& name,
                                       const gd::String& value) {
-  if (name == _("Ledges can be grabbed"))
+  if (name == "CanBeGrabbed")
     behaviorContent.SetAttribute("canBeGrabbed", (value == "1"));
-  else if (name == _("Type")) {
+  else if (name == "PlatformType") {
     if (value == _("Jumpthru platform"))
       behaviorContent.SetAttribute("platformType", "Jumpthru");
     else if (value == _("Ladder"))
       behaviorContent.SetAttribute("platformType", "Ladder");
     else
       behaviorContent.SetAttribute("platformType", "NormalPlatform");
-  } else if (name == _("Grab offset on Y axis"))
+  } else if (name == "YGrabOffset")
     behaviorContent.SetAttribute("yGrabOffset", value.To<double>());
   else
     return false;

Extensions/PlatformBehavior/PlatformerObjectBehavior.cpp

@@ -13,6 +13,7 @@ This project is released under the MIT License.
 
 #include "GDCore/CommonTools.h"
 #include "GDCore/Project/Layout.h"
+#include "GDCore/Project/MeasurementUnit.h"
 #include "GDCore/Project/PropertyDescriptor.h"
 #include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/Tools/Localization.h"
@@ -44,60 +45,109 @@ PlatformerObjectBehavior::GetProperties(
     const gd::SerializerElement& behaviorContent) const {
   std::map<gd::String, gd::PropertyDescriptor> properties;
 
-  properties[_("Gravity")].SetGroup(_("Jump")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("gravity")));
-  properties[_("Jump speed")].SetGroup(_("Jump")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("jumpSpeed")));
-  properties["jumpSustainTime"]
+  properties["Gravity"]
+      .SetLabel(_("Gravity"))
       .SetGroup(_("Jump"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelAcceleration())
+      .SetValue(
+          gd::String::From(behaviorContent.GetDoubleAttribute("gravity")));
+  properties["JumpSpeed"]
+      .SetLabel(_("Jump speed"))
+      .SetGroup(_("Jump"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelSpeed())
+      .SetValue(
+          gd::String::From(behaviorContent.GetDoubleAttribute("jumpSpeed")));
+  properties["JumpSustainTime"]
+      .SetLabel(_("Jump sustain time"))
+      .SetGroup(_("Jump"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetSecond())
       .SetValue(gd::String::From(
           behaviorContent.GetDoubleAttribute("jumpSustainTime", 0)))
-      .SetLabel(_("Jump sustain time"))
       .SetDescription(
           _("Maximum time (in seconds) during which the jump strength is "
             "sustained if the jump key is held - allowing variable height "
             "jumps."));
-  properties[_("Max. falling speed")].SetGroup(_("Jump")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("maxFallingSpeed")));
-  properties[_("Ladder climbing speed")]
+  properties["MaxFallingSpeed"]
+      .SetLabel(_("Max. falling speed"))
+      .SetGroup(_("Jump"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelSpeed())
+      .SetValue(gd::String::From(
+          behaviorContent.GetDoubleAttribute("maxFallingSpeed")));
+  properties["LadderClimbingSpeed"]
+      .SetLabel(_("Ladder climbing speed"))
       .SetGroup(_("Ladder"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelSpeed())
       .SetValue(gd::String::From(
           behaviorContent.GetDoubleAttribute("ladderClimbingSpeed", 150)));
-  properties[_("Acceleration")].SetGroup(_("Walk")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("acceleration")));
-  properties[_("Deceleration")].SetGroup(_("Walk")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("deceleration")));
-  properties[_("Max. speed")].SetGroup(_("Walk")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("maxSpeed")));
-  properties[_("Default controls")]
+  properties["Acceleration"]
+      .SetLabel(_("Acceleration"))
+      .SetGroup(_("Walk"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelAcceleration())
+      .SetValue(
+          gd::String::From(behaviorContent.GetDoubleAttribute("acceleration")));
+  properties["Deceleration"]
+      .SetLabel(_("Deceleration"))
+      .SetGroup(_("Walk"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelAcceleration())
+      .SetValue(
+          gd::String::From(behaviorContent.GetDoubleAttribute("deceleration")));
+  properties["MaxSpeed"]
+      .SetLabel(_("Max. speed"))
+      .SetGroup(_("Walk"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixelSpeed())
+      .SetValue(
+          gd::String::From(behaviorContent.GetDoubleAttribute("maxSpeed")));
+  properties["IgnoreDefaultControls"]
+      .SetLabel(_("Default controls"))
       .SetValue(behaviorContent.GetBoolAttribute("ignoreDefaultControls")
                     ? "false"
                     : "true")
       .SetType("Boolean");
-  properties[_("Slope max. angle")].SetGroup(_("Walk")).SetValue(
-      gd::String::From(behaviorContent.GetDoubleAttribute("slopeMaxAngle")));
-  properties[_("Can grab platform ledges")]
+  properties["SlopeMaxAngle"]
+      .SetLabel(_("Slope max. angle"))
+      .SetGroup(_("Walk"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetDegreeAngle())
+      .SetValue(gd::String::From(
+          behaviorContent.GetDoubleAttribute("slopeMaxAngle")));
+  properties["CanGrabPlatforms"]
+      .SetLabel(_("Can grab platform ledges"))
       .SetGroup(_("Ledge"))
       .SetValue(behaviorContent.GetBoolAttribute("canGrabPlatforms", false)
                     ? "true"
                     : "false")
       .SetType("Boolean");
-  properties[_("Automatically grab platform ledges without having to move "
-               "horizontally")]
+  properties["CanGrabWithoutMoving"]
+      .SetLabel(_("Automatically grab platform ledges without having to move "
+                  "horizontally"))
       .SetGroup(_("Ledge"))
       .SetValue(behaviorContent.GetBoolAttribute("canGrabWithoutMoving", false)
                     ? "true"
                     : "false")
       .SetType("Boolean");
-  properties[_("Grab offset on Y axis")]
+  properties["YGrabOffset"]
+      .SetLabel(_("Grab offset on Y axis"))
       .SetGroup(_("Ledge"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
       .SetValue(
           gd::String::From(behaviorContent.GetDoubleAttribute("yGrabOffset")));
-  properties[_("Grab tolerance on X axis")]
+  properties["XGrabTolerance"]
+      .SetLabel(_("Grab tolerance on X axis"))
       .SetGroup(_("Ledge"))
+      .SetType("Number")
+      .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
       .SetValue(gd::String::From(
           behaviorContent.GetDoubleAttribute("xGrabTolerance", 10)));
-  properties["useLegacyTrajectory"]
+  properties["UseLegacyTrajectory"]
       .SetLabel(_("Use frame rate dependent trajectories (deprecated, it's "
                   "recommended to leave this unchecked)"))
       .SetGroup(_("Deprecated options (advanced)"))
@@ -105,7 +155,8 @@ PlatformerObjectBehavior::GetProperties(
                     ? "true"
                     : "false")
       .SetType("Boolean");
-  properties[_("Can go down from jumpthru platforms")]
+  properties["CanGoDownFromJumpthru"]
+      .SetLabel(_("Can go down from jumpthru platforms"))
       .SetGroup(_("Walk"))
       .SetValue(behaviorContent.GetBoolAttribute("canGoDownFromJumpthru", false)
                     ? "true"
@@ -118,44 +169,43 @@ bool PlatformerObjectBehavior::UpdateProperty(
     gd::SerializerElement& behaviorContent,
     const gd::String& name,
     const gd::String& value) {
-  if (name == _("Default controls"))
+  if (name == "IgnoreDefaultControls")
     behaviorContent.SetAttribute("ignoreDefaultControls", (value == "0"));
-  else if (name == _("Can grab platform ledges"))
+  else if (name == "CanGrabPlatforms")
     behaviorContent.SetAttribute("canGrabPlatforms", (value == "1"));
-  else if (name == _("Automatically grab platform ledges without having to "
-                     "move horizontally"))
+  else if (name == "CanGrabWithoutMoving")
     behaviorContent.SetAttribute("canGrabWithoutMoving", (value == "1"));
-  else if (name == "useLegacyTrajectory")
+  else if (name == "UseLegacyTrajectory")
     behaviorContent.SetAttribute("useLegacyTrajectory", (value == "1"));
-  else if (name == _("Can go down from jumpthru platforms"))
+  else if (name == "CanGoDownFromJumpthru")
     behaviorContent.SetAttribute("canGoDownFromJumpthru", (value == "1"));
-  else if (name == _("Grab offset on Y axis"))
+  else if (name == "YGrabOffset")
     behaviorContent.SetAttribute("yGrabOffset", value.To<double>());
   else {
     if (value.To<double>() < 0) return false;
 
-    if (name == _("Gravity"))
+    if (name == "Gravity")
       behaviorContent.SetAttribute("gravity", value.To<double>());
-    else if (name == _("Max. falling speed"))
+    else if (name == "MaxFallingSpeed")
       behaviorContent.SetAttribute("maxFallingSpeed", value.To<double>());
-    else if (name == _("Ladder climbing speed"))
+    else if (name == "LadderClimbingSpeed")
       behaviorContent.SetAttribute("ladderClimbingSpeed", value.To<double>());
-    else if (name == _("Acceleration"))
+    else if (name == "Acceleration")
       behaviorContent.SetAttribute("acceleration", value.To<double>());
-    else if (name == _("Deceleration"))
+    else if (name == "Deceleration")
       behaviorContent.SetAttribute("deceleration", value.To<double>());
-    else if (name == _("Max. speed"))
+    else if (name == "MaxSpeed")
       behaviorContent.SetAttribute("maxSpeed", value.To<double>());
-    else if (name == _("Jump speed"))
+    else if (name == "JumpSpeed")
       behaviorContent.SetAttribute("jumpSpeed", value.To<double>());
-    else if (name == "jumpSustainTime")
+    else if (name == "JumpSustainTime")
       behaviorContent.SetAttribute("jumpSustainTime", value.To<double>());
-    else if (name == _("Slope max. angle")) {
+    else if (name == "SlopeMaxAngle") {
       double newMaxAngle = value.To<double>();
       if (newMaxAngle < 0 || newMaxAngle >= 90) return false;
 
       behaviorContent.SetAttribute("slopeMaxAngle", newMaxAngle);
-    } else if (name == _("Grab tolerance on X axis"))
+    } else if (name == "XGrabTolerance")
       behaviorContent.SetAttribute("xGrabTolerance", value.To<double>());
     else
       return false;

Extensions/PlatformBehavior/platformerobjectruntimebehavior.ts

@@ -1592,17 +1592,6 @@ namespace gdjs {
         this._currentFallSpeed !== 0
       );
     }
-
-    followCurrentPlatformIfAny(): boolean {
-      let hasMoved = false;
-      if (this.isOnFloor()) {
-        const timeDelta = this.owner.getElapsedTime() / 1000;
-        const hasMovedX = this._onFloor.followCurrentPlatformOnX(timeDelta);
-        const hasMovedY = this._onFloor.followCurrentPlatformOnY(timeDelta);
-        hasMoved = hasMovedX || hasMovedY;
-      }
-      return hasMoved;
-    }
   }
 
   /**
@@ -1677,11 +1666,6 @@ namespace gdjs {
     }
 
     beforeUpdatingObstacles(timeDelta: float) {
-      this.followCurrentPlatformOnY(timeDelta);
-    }
-
-    followCurrentPlatformOnY(timeDelta: float): boolean {
-      let hasMoved = false;
       const object = this._behavior.owner;
       //Stick the object to the floor if its height has changed.
       if (this._oldHeight !== object.getHeight()) {
@@ -1690,7 +1674,6 @@ namespace gdjs {
             object.getHeight() +
             (object.getY() - object.getDrawableY())
         );
-        hasMoved = true;
       }
       // Directly follow the floor movement on the Y axis by moving the character.
       // For the X axis, we follow the floor movement using `_requestedDeltaX`
@@ -1711,18 +1694,14 @@ namespace gdjs {
       // and the platform can go out of the spatial search rectangle
       // even though they are next to each other, which means
       // that the character will fall.
-      const floorY = this._floorPlatform!.owner.getY();
-      const deltaY = floorY - this._floorLastY;
+      const deltaY = this._floorPlatform!.owner.getY() - this._floorLastY;
       if (
         deltaY !== 0 &&
         Math.abs(deltaY) <=
           Math.abs(this._behavior._maxFallingSpeed * timeDelta)
       ) {
         object.setY(object.getY() + deltaY);
-        this._floorLastY = floorY;
-        hasMoved = true;
       }
-      return hasMoved;
     }
 
     checkTransitionBeforeX() {
@@ -1760,29 +1739,11 @@ namespace gdjs {
     beforeMovingX() {
       const behavior = this._behavior;
       // Shift the object according to the floor movement.
-      const floorX = this._floorPlatform!.owner.getX();
-      const deltaX = floorX - this._floorLastX;
-      behavior._requestedDeltaX += deltaX;
-      this._floorLastX = floorX;
+      behavior._requestedDeltaX +=
+        this._floorPlatform!.owner.getX() - this._floorLastX;
       // See `beforeUpdatingObstacles` for the logic for the Y axis.
     }
 
-    followCurrentPlatformOnX(timeDelta: float): boolean {
-      let hasMoved = false;
-      const object = this._behavior.owner;
-
-      // Shift the object according to the floor movement.
-      const floorX = this._floorPlatform!.owner.getX();
-      const deltaX = floorX - this._floorLastX;
-      if (deltaX !== 0) {
-        console.log(deltaX);
-        object.setX(object.getX() + deltaX);
-        this._floorLastX = floorX;
-        hasMoved = true;
-      }
-      return hasMoved;
-    }
-
     checkTransitionBeforeY(timeDelta: float) {
       const behavior = this._behavior;
       // Go on a ladder

Extensions/PlatformBehavior/tests/FlatFloorPlatformer.spec.js

@@ -694,7 +694,7 @@ describe('gdjs.PlatformerObjectRuntimeBehavior', function () {
       expect(object.getBehavior('auto1').isFalling()).to.be(false);
       expect(object.getBehavior('auto1').isOnFloor()).to.be(true);
       expect(object.getY()).to.be.within(140.6297999, 140.6298001);
-      // The floor following has a 1-frame delay.
+      // TODO Remove the 1-frame delay
       expect(object.getX()).to.be(5);
       runtimeScene.renderAndStep(1000 / 60);
       expect(object.getX()).to.be(6);

Extensions/PlatformBehavior/tests/MovingPlatformPlatformer.spec.js

@@ -68,7 +68,7 @@ describe('gdjs.PlatformerObjectRuntimeBehavior', function () {
       runtimeScene.renderAndStepWithEventsFunction(1000 / 60, () => {
         platform.setX(platform.getX() + 0.12);
       });
-      // The floor following has a 1-frame delay.
+      // TODO Remove the 1-frame delay
       expect(object.getX()).to.be(0.24);
       runtimeScene.renderAndStep(1000 / 60);
       expect(object.getX()).to.be(0.36);
@@ -258,13 +258,13 @@ describe('gdjs.PlatformerObjectRuntimeBehavior', function () {
               // The object follow the platform
               // The rounding error is probably due to a separate call.
               // TODO Try to make it exact or find why
-              // The floor following has a 1-frame delay.
+              // TODO Remove the 1-frame delay
               expect(object.getY()).to.be.within(
                 previousPlatformY - object.getHeight() - epsilon,
                 previousPlatformY - object.getHeight() + epsilon
               );
             }
-            // The floor following has a 1-frame delay.
+            // TODO Remove the 1-frame delay
             expect(object.getX()).to.be(0 + 4 * deltaX);
             runtimeScene.renderAndStep(1000 / 60);
             expect(object.getX()).to.be(0 + 5 * deltaX);
@@ -400,13 +400,13 @@ describe('gdjs.PlatformerObjectRuntimeBehavior', function () {
                 expect(object.getBehavior('auto1').isFalling()).to.be(false);
                 expect(object.getBehavior('auto1').isMoving()).to.be(false);
                 // The object must not be inside the platform or it gets stuck
-                // The floor following has a 1-frame delay.
+                // TODO Remove the 1-frame delay
                 expect(object.getY()).to.be.within(
                   previousPlatformY - object.getHeight() - epsilon,
                   previousPlatformY - object.getHeight() + epsilon
                 );
               }
-              // The floor following has a 1-frame delay.
+              // TODO Remove the 1-frame delay
               expect(object.getX()).to.be(0 + 4 * deltaX);
               runtimeScene.renderAndStep(1000 / 60);
               expect(object.getX()).to.be(0 + 5 * deltaX);

Extensions/PrimitiveDrawing/Extension.cpp

@@ -480,7 +480,8 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                 "res/actions/outlineSize_black.png")
 
       .AddParameter("object", _("Shape Painter object"), "Drawer")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions())
       .SetFunctionName("SetOutlineSize")
       .SetGetter("GetOutlineSize");
 
@@ -493,7 +494,8 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                    "res/conditions/outlineSize_black.png")
 
       .AddParameter("object", _("Shape Painter object"), "Drawer")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number", gd::ParameterOptions::MakeNewOptions())
       .SetFunctionName("GetOutlineSize");
 
   obj.AddExpression("OutlineSize",
@@ -514,7 +516,10 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
          "res/actions/opacity.png")
 
       .AddParameter("object", _("Shape Painter object"), "Drawer")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Opacity (0-255)")))
       .SetFunctionName("SetFillOpacity")
       .SetGetter("GetFillOpacity");
 
@@ -527,7 +532,10 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                    "res/conditions/opacity.png")
 
       .AddParameter("object", _("Shape Painter object"), "Drawer")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Opacity to compare to (0-255)")))
       .SetFunctionName("GetFillOpacity");
 
   obj.AddExpression("FillOpacity",
@@ -547,7 +555,10 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                 "res/actions/opacity.png")
 
       .AddParameter("object", _("Shape Painter object"), "Drawer")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Opacity (0-255)")))
       .SetFunctionName("SetOutlineOpacity")
       .SetGetter("GetOutlineOpacity");
 
@@ -560,7 +571,10 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                    "res/conditions/opacity.png")
 
       .AddParameter("object", _("Shape Painter object"), "Drawer")
-      .UseStandardRelationalOperatorParameters("number")
+      .UseStandardRelationalOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Opacity to compare to (0-255)")))
       .SetFunctionName("GetOutlineOpacity");
 
   obj.AddExpression("OutlineOpacity",
@@ -605,7 +619,10 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                 "res/actions/scale24_black.png",
                 "res/actions/scale_black.png")
       .AddParameter("object", _("Object"), "Drawer")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Scale (1 by default)")))
       .MarkAsAdvanced();
 
   obj.AddExpressionAndConditionAndAction("number",
@@ -616,7 +633,10 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                                          _("Size"),
                                          "res/actions/scaleWidth24_black.png")
       .AddParameter("object", _("Object"), "Drawer")
-      .UseStandardParameters("number")
+      .UseStandardParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Scale (1 by default)")))
       .MarkAsAdvanced();
 
   obj.AddExpressionAndConditionAndAction("number",
@@ -627,7 +647,10 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                                          _("Size"),
                                          "res/actions/scaleHeight24_black.png")
       .AddParameter("object", _("Object"), "Drawer")
-      .UseStandardParameters("number")
+      .UseStandardParameters(
+          "number",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(
+              _("Scale (1 by default)")))
       .MarkAsAdvanced();
 
   obj.AddAction("FlipX",
@@ -678,7 +701,8 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                 "res/actions/scaleWidth24_black.png",
                 "res/actions/scaleWidth_black.png")
       .AddParameter("object", _("Object"), "Drawer")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddAction("Height",
@@ -689,7 +713,8 @@ void DeclarePrimitiveDrawingExtension(gd::PlatformExtension& extension) {
                 "res/actions/scaleHeight24_black.png",
                 "res/actions/scaleHeight_black.png")
       .AddParameter("object", _("Object"), "Drawer")
-      .UseStandardOperatorParameters("number")
+      .UseStandardOperatorParameters("number",
+                                     gd::ParameterOptions::MakeNewOptions())
       .MarkAsAdvanced();
 
   obj.AddAction(

Extensions/PrimitiveDrawing/ShapePainterObject.cpp

@@ -108,7 +108,7 @@ void ShapePainterObjectBase::SetFillColor(unsigned int r,
   fillColorB = b;
 }
 
-void ShapePainterObjectBase::SetFillOpacity(float val) {
+void ShapePainterObjectBase::SetFillOpacity(double val) {
   if (val > 255)
     val = 255;
   else if (val < 0)
@@ -128,7 +128,7 @@ void ShapePainterObjectBase::SetOutlineColor(unsigned int r,
   outlineColorB = b;
 }
 
-void ShapePainterObjectBase::SetOutlineOpacity(float val) {
+void ShapePainterObjectBase::SetOutlineOpacity(double val) {
   if (val > 255)
     val = 255;
   else if (val < 0)

Extensions/PrimitiveDrawing/ShapePainterObject.h

@@ -26,11 +26,11 @@ class GD_EXTENSION_API ShapePainterObjectBase {
   ShapePainterObjectBase();
   virtual ~ShapePainterObjectBase(){};
 
-  inline void SetOutlineSize(float size) { outlineSize = size; };
-  inline float GetOutlineSize() const { return outlineSize; };
+  inline void SetOutlineSize(double size) { outlineSize = size; };
+  inline double GetOutlineSize() const { return outlineSize; };
 
-  void SetOutlineOpacity(float val);
-  inline float GetOutlineOpacity() const { return outlineOpacity; };
+  void SetOutlineOpacity(double val);
+  inline double GetOutlineOpacity() const { return outlineOpacity; };
 
   void SetOutlineColor(unsigned int r, unsigned int v, unsigned int b);
   inline unsigned int GetOutlineColorR() const { return outlineColorR; };
@@ -41,8 +41,8 @@ class GD_EXTENSION_API ShapePainterObjectBase {
    */
   void SetOutlineColor(const gd::String& color);
 
-  void SetFillOpacity(float val);
-  inline float GetFillOpacity() const { return fillOpacity; };
+  void SetFillOpacity(double val);
+  inline double GetFillOpacity() const { return fillOpacity; };
 
   void SetFillColor(unsigned int r, unsigned int v, unsigned int b);
   inline unsigned int GetFillColorR() const { return fillColorR; };

Extensions/TextEntryObject/Extension.cpp

@@ -39,7 +39,9 @@ void DeclareTextEntryObjectExtension(gd::PlatformExtension& extension) {
                 "CppPlatform/Extensions/textentryicon.png")
 
       .AddParameter("object", _("Object"), "TextEntry")
-      .UseStandardOperatorParameters("string")
+      .UseStandardOperatorParameters(
+          "string",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(_("Text")))
       .SetFunctionName("SetString")
       .SetGetter("GetString");
 
@@ -52,7 +54,9 @@ void DeclareTextEntryObjectExtension(gd::PlatformExtension& extension) {
                    "CppPlatform/Extensions/textentryicon.png")
 
       .AddParameter("object", _("Object"), "TextEntry")
-      .UseStandardRelationalOperatorParameters("string")
+      .UseStandardRelationalOperatorParameters(
+          "string",
+          gd::ParameterOptions::MakeNewOptions().SetDescription(_("Text to compare to")))
       .SetFunctionName("GetString");
 
   obj.AddAction(