Fix objects owned by Multiplayer host not being properly migrated when host changes (#7078)

Co-authored-by: AlexandreSi <32449369+AlexandreSi@users.noreply.github.com>

.circleci/config.yml

@@ -176,6 +176,7 @@ jobs:
 
   # Build the WebAssembly library only (so that it's cached on a S3 and easy to re-use).
   build-gdevelop_js-wasm-only:
+    resource_class: medium+ # Compilation time decrease linearly with the number of CPUs, but not linking (so "large" does not speedup total build time).
     docker:
       - image: cimg/node:16.13
 
@@ -232,10 +233,83 @@ jobs:
           name: Deploy to S3 (latest)
           command: aws s3 sync Binaries/embuild/GDevelop.js s3://gdevelop-gdevelop.js/$(git rev-parse --abbrev-ref HEAD)/latest/
 
+  # Build the WebAssembly library with clang-tidy and memory sanitizers.
+  build-gdevelop_js-debug-sanitizers-and-extra-checks:
+    resource_class: xlarge # Total time decrease linearly with the number of CPUs.
+    docker:
+      - image: cimg/node:16.13
+
+    working_directory: ~/GDevelop
+
+    steps:
+      - checkout
+      - aws-cli/setup
+
+      # System dependencies (for Emscripten)
+      - run:
+          name: Install dependencies for Emscripten
+          command: sudo apt-get update && sudo apt install cmake
+
+      - run:
+          name: Install dependencies for clang-tidy v19
+          command: wget https://apt.llvm.org/llvm.sh && chmod +x llvm.sh && sudo ./llvm.sh 19 && sudo apt install clang-tidy-19
+
+      - run:
+          name: Install Python3 dependencies for Emscripten
+          command: sudo apt install python-is-python3 python3-distutils -y
+
+      - run:
+          name: Install Emscripten (for GDevelop.js)
+          command: git clone https://github.com/juj/emsdk.git && cd emsdk && ./emsdk install 3.1.21 && ./emsdk activate 3.1.21 && cd ..
+
+      # GDevelop.js dependencies
+      - restore_cache:
+          keys:
+            - gdevelop.js-linux-nodejs-dependencies-{{ checksum "GDevelop.js/package-lock.json" }}
+            # fallback to using the latest cache if no exact match is found
+            - gdevelop.js-linux-nodejs-dependencies-
+
+      - run:
+          name: Install GDevelop.js dependencies and build it
+          command: cd GDevelop.js && npm install && cd ..
+
+      # Build GDevelop.js
+      - run:
+          name: Build GDevelop.js ('debug-sanitizers' variant)
+          command: cd GDevelop.js && source ../emsdk/emsdk_env.sh && npm run build -- --variant=debug-sanitizers
+
+      - run:
+          name: Run clang-tidy
+          command: cd GDevelop.js && npm run lint
+
+      - run:
+          name: Run tests
+          command: cd GDevelop.js && npm run test -- --maxWorkers=4
+
+      # Upload artifacts (CircleCI)
+      - store_artifacts:
+          path: Binaries/embuild/GDevelop.js
+
+      # Upload artifacts (AWS)
+      - run:
+          name: Deploy to S3 (specific commit)
+          command: aws s3 sync Binaries/embuild/GDevelop.js s3://gdevelop-gdevelop.js/$(git rev-parse --abbrev-ref HEAD)/variant/debug-sanitizers/commit/$(git rev-parse HEAD)/
+
 workflows:
-  builds:
+  gdevelop_js-wasm:
     jobs:
       - build-gdevelop_js-wasm-only
+  gdevelop_js-wasm-extra-checks:
+    jobs:
+      - build-gdevelop_js-debug-sanitizers-and-extra-checks:
+          # Extra checks are resource intensive so don't all run them.
+          filters:
+            branches:
+              only:
+                - master
+                - /experimental-build.*/
+  builds:
+    jobs:
       - build-macos:
           filters:
             branches:

.clang-tidy

@@ -0,0 +1,4 @@
+Checks: 'clang-diagnostic-*,clang-analyzer-*,cppcoreguidelines-*,-cppcoreguidelines-explicit-virtual-functions,-cppcoreguidelines-avoid-const-or-ref-data-members,-cppcoreguidelines-special-member-functions,-cppcoreguidelines-avoid-magic-numbers,-cppcoreguidelines-non-private-member-variables-in-classes,-cppcoreguidelines-owning-memory,-cppcoreguidelines-virtual-class-destructor,-clang-analyzer-optin.performance.Padding,-cppcoreguidelines-narrowing-conversions'
+WarningsAsErrors: 'cppcoreguidelines-pro-type-member-init, clang-analyzer-optin.cplusplus.UninitializedObject'
+HeaderFilterRegex: '.*'
+FormatStyle: none

.vscode/settings.json

@@ -114,7 +114,8 @@
     "__bits": "cpp",
     "__verbose_abort": "cpp",
     "variant": "cpp",
-    "charconv": "cpp"
+    "charconv": "cpp",
+    "execution": "cpp"
   },
   "files.exclude": {
     "Binaries/*build*": true,

CMakeLists.txt

@@ -69,12 +69,18 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
 	# uninitialized variables or other hard to debug bugs.
 	add_compile_options(
 		-Wall
+		-Wextra
+		-Wuninitialized
+		-Wconditional-uninitialized
 		-Wno-unknown-warning-option
 		-Wno-reorder-ctor
 		-Wno-reorder
+		-Wno-unused-parameter
 		-Wno-pessimizing-move
-		-Wno-unused-variable
+		-Wno-unused-variable # Not a good style, but not a risk
 		-Wno-unused-private-field
+		-Wno-ignored-qualifiers # Not a risk
+		-Wno-sign-compare # Not a big risk
 
 		# Make as much warnings considered as errors as possible (only one for now).
 		-Werror=return-stack-address

Core/GDCore/Events/Builtin/WhileEvent.h

@@ -72,8 +72,6 @@ class GD_CORE_API WhileEvent : public gd::BaseEvent {
                               ///< de/activate infinite loop warning when the
                               ///< user create the event
 
-  mutable unsigned int whileConditionsHeight;
-
   int GetConditionsHeight() const;
   int GetActionsHeight() const;
   int GetWhileConditionsHeight() const;

Core/GDCore/Events/CodeGeneration/DiagnosticReport.h

@@ -14,10 +14,10 @@
 namespace gd {
 
 /**
- * \brief 
+ * \brief
  */
 class GD_CORE_API ProjectDiagnostic {
-public:
+ public:
   enum ErrorType {
     UndeclaredVariable,
     MissingBehavior,
@@ -25,12 +25,17 @@ public:
     MismatchedObjectType,
   };
 
-  ProjectDiagnostic(ErrorType type_, const gd::String &message_,
+  ProjectDiagnostic(ErrorType type_,
+                    const gd::String &message_,
                     const gd::String &actualValue_,
-                    const gd::String &expectedValue_, const gd::String &objectName_ = "")
-      : type(type_), message(message_), actualValue(actualValue_), expectedValue(expectedValue_),
-        objectName(objectName_){};
-  virtual ~ProjectDiagnostic(){};
+                    const gd::String &expectedValue_,
+                    const gd::String &objectName_ = "")
+      : type(type_),
+        message(message_),
+        actualValue(actualValue_),
+        expectedValue(expectedValue_),
+        objectName(objectName_) {};
+  virtual ~ProjectDiagnostic() {};
 
   ErrorType GetType() const { return type; };
   const gd::String &GetMessage() const { return message; }
@@ -38,7 +43,7 @@ public:
   const gd::String &GetActualValue() const { return actualValue; }
   const gd::String &GetExpectedValue() const { return expectedValue; }
 
-private:
+ private:
   ErrorType type;
   gd::String message;
   gd::String objectName;
@@ -47,12 +52,12 @@ private:
 };
 
 /**
- * \brief 
+ * \brief
  */
 class GD_CORE_API DiagnosticReport {
-public:
-  DiagnosticReport(){};
-  virtual ~DiagnosticReport(){};
+ public:
+  DiagnosticReport() {};
+  virtual ~DiagnosticReport() {};
 
   void Add(const gd::ProjectDiagnostic &projectDiagnostic) {
     projectDiagnostics.push_back(
@@ -67,32 +72,39 @@ public:
 
   const gd::String &GetSceneName() const { return sceneName; }
 
-  void SetSceneName(const gd::String &sceneName_) {
-    sceneName = sceneName_;
+  void SetSceneName(const gd::String &sceneName_) { sceneName = sceneName_; }
+
+  void LogAllDiagnostics() {
+    for (auto &diagnostic : projectDiagnostics) {
+      std::cout << diagnostic->GetMessage()
+                << "(object: " << diagnostic->GetObjectName()
+                << ", actual value: " << diagnostic->GetActualValue()
+                << ", expected value: " << diagnostic->GetExpectedValue() << ")"
+                << std::endl;
+    }
   }
 
-private:
+ private:
   std::vector<std::unique_ptr<gd::ProjectDiagnostic>> projectDiagnostics;
   gd::String sceneName;
 };
 
 /**
- * \brief 
+ * \brief
  */
 class GD_CORE_API WholeProjectDiagnosticReport {
-public:
-  WholeProjectDiagnosticReport(){};
-  virtual ~WholeProjectDiagnosticReport(){};
+ public:
+  WholeProjectDiagnosticReport() {};
+  virtual ~WholeProjectDiagnosticReport() {};
 
   const DiagnosticReport &Get(std::size_t index) const {
     return *diagnosticReports[index].get();
   };
 
-  void Clear() {
-    diagnosticReports.clear();
-  };
+  void Clear() { diagnosticReports.clear(); };
 
-  DiagnosticReport& AddNewDiagnosticReportForScene(const gd::String &sceneName) {
+  DiagnosticReport &AddNewDiagnosticReportForScene(
+      const gd::String &sceneName) {
     auto diagnosticReport = gd::make_unique<gd::DiagnosticReport>();
     diagnosticReport->SetSceneName(sceneName);
     diagnosticReports.push_back(std::move(diagnosticReport));
@@ -102,7 +114,7 @@ public:
   std::size_t Count() const { return diagnosticReports.size(); };
 
   bool HasAnyIssue() {
-    for (auto& diagnosticReport : diagnosticReports) {
+    for (auto &diagnosticReport : diagnosticReports) {
       if (diagnosticReport->Count() > 0) {
         return true;
       }
@@ -110,8 +122,8 @@ public:
     return false;
   }
 
-private:
+ private:
   std::vector<std::unique_ptr<gd::DiagnosticReport>> diagnosticReports;
 };
 
-} // namespace gd
+}  // namespace gd

Core/GDCore/Events/CodeGeneration/EventsCodeGenerator.cpp

@@ -345,14 +345,14 @@ gd::String EventsCodeGenerator::GenerateConditionCode(
         gd::ProjectDiagnostic projectDiagnostic(
             gd::ProjectDiagnostic::ErrorType::UnknownObject, "",
             objectInParameter, "");
-        diagnosticReport->Add(projectDiagnostic);
+        if (diagnosticReport) diagnosticReport->Add(projectDiagnostic);
         return "/* Unknown object - skipped. */";
       } else if (!expectedObjectType.empty() &&
                  actualObjectType != expectedObjectType) {
         gd::ProjectDiagnostic projectDiagnostic(
             gd::ProjectDiagnostic::ErrorType::MismatchedObjectType, "",
             actualObjectType, expectedObjectType, objectInParameter);
-        diagnosticReport->Add(projectDiagnostic);
+        if (diagnosticReport) diagnosticReport->Add(projectDiagnostic);
         return "/* Mismatched object type - skipped. */";
       }
     }
@@ -509,7 +509,7 @@ void EventsCodeGenerator::CheckBehaviorParameters(
             gd::ProjectDiagnostic projectDiagnostic(
                 gd::ProjectDiagnostic::ErrorType::MissingBehavior, "",
                 actualBehaviorType, expectedBehaviorType, lastObjectName);
-            diagnosticReport->Add(projectDiagnostic);
+            if (diagnosticReport) diagnosticReport->Add(projectDiagnostic);
           }
         }
       });
@@ -567,14 +567,14 @@ gd::String EventsCodeGenerator::GenerateActionCode(
         gd::ProjectDiagnostic projectDiagnostic(
             gd::ProjectDiagnostic::ErrorType::UnknownObject, "",
             objectInParameter, "");
-        diagnosticReport->Add(projectDiagnostic);
+        if (diagnosticReport) diagnosticReport->Add(projectDiagnostic);
         return "/* Unknown object - skipped. */";
       } else if (!expectedObjectType.empty() &&
                  actualObjectType != expectedObjectType) {
         gd::ProjectDiagnostic projectDiagnostic(
             gd::ProjectDiagnostic::ErrorType::MismatchedObjectType, "",
             actualObjectType, expectedObjectType, objectInParameter);
-        diagnosticReport->Add(projectDiagnostic);
+        if (diagnosticReport) diagnosticReport->Add(projectDiagnostic);
         return "/* Mismatched object type - skipped. */";
       }
     }

Core/GDCore/Events/Parsers/ExpressionParser2Node.h

@@ -36,8 +36,8 @@ struct GD_CORE_API ExpressionParserLocation {
 
  private:
   bool isValid;
-  size_t startPosition;
-  size_t endPosition;
+  size_t startPosition = 0;
+  size_t endPosition = 0;
 };
 
 /**

Core/GDCore/Extensions/Builtin/BaseObjectExtension.cpp

@@ -1768,6 +1768,22 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
       .AddParameter("expression",
                     _("Angle of tolerance, in degrees (0: minimum tolerance)"))
       .AddCodeOnlyParameter("conditionInverted", "")
+      .SetHidden()
+      .MarkAsAdvanced();
+
+  extension
+      .AddCondition("IsTurnedTowardObject",
+                    _("An object is turned toward another"),
+                    _("Check if an object is turned toward another"),
+                    _("_PARAM0_ is turned toward _PARAM1_ ± _PARAM2_°"),
+                    _("Angle"),
+                    "res/conditions/estTourne24.png",
+                    "res/conditions/estTourne.png")
+      .AddParameter("objectList", _("Name of the object"))
+      .AddParameter("objectList", _("Name of the second object"))
+      .AddParameter("expression",
+                    _("Angle of tolerance, in degrees (0: minimum tolerance)"))
+      .AddCodeOnlyParameter("conditionInverted", "")
       .MarkAsAdvanced();
 
   extension

Core/GDCore/Extensions/Builtin/MouseExtension.cpp

@@ -338,6 +338,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
       .AddParameter("expression", _("Camera number (default : 0)"), "", true)
       .SetDefaultValue("0");
 
+  // Deprecated
   extension
       .AddCondition(
           "PopStartedTouch",
@@ -354,6 +355,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .SetHidden();
 
+  // Deprecated
   extension
       .AddCondition(
           "PopEndedTouch",
@@ -370,6 +372,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .SetHidden();
 
+  // Deprecated
   extension
       .AddCondition(
           "HasAnyTouchStarted",

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

@@ -33,6 +33,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                                      "most elements of a game."),
                                    "CppPlatform/Extensions/spriteicon.png")
           .SetCategoryFullName(_("General"))
+          .SetOpenFullEditorLabel(_("Edit animations"))
           .AddDefaultBehavior("EffectCapability::EffectBehavior")
           .AddDefaultBehavior("ResizableCapability::ResizableBehavior")
           .AddDefaultBehavior("ScalableCapability::ScalableBehavior")

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

@@ -47,19 +47,11 @@ void SpriteObject::DoSerializeTo(gd::SerializerElement& element) const {
 std::map<gd::String, gd::PropertyDescriptor> SpriteObject::GetProperties()
     const {
   std::map<gd::String, gd::PropertyDescriptor> properties;
-  properties[_("Animate even if hidden or far from the screen")]
-      .SetValue(updateIfNotVisible ? "true" : "false")
-      .SetType("Boolean");
-  properties["PLEASE_ALSO_SHOW_EDIT_BUTTON_THANKS"].SetValue("");
-
   return properties;
 }
 
 bool SpriteObject::UpdateProperty(const gd::String& name,
                                   const gd::String& value) {
-  if (name == _("Animate even if hidden or far from the screen"))
-    updateIfNotVisible = value == "1";
-
   return true;
 }
 

Core/GDCore/Extensions/Metadata/BehaviorMetadata.cpp

@@ -37,8 +37,7 @@ BehaviorMetadata::BehaviorMetadata(
       className(className_),
       iconFilename(icon24x24),
       instance(instance_),
-      sharedDatasInstance(sharedDatasInstance_),
-      quickCustomizationVisibility(QuickCustomization::Visibility::Default) {
+      sharedDatasInstance(sharedDatasInstance_) {
   SetFullName(gd::String(fullname_));
   SetDescription(gd::String(description_));
   SetDefaultName(gd::String(defaultName_));

Core/GDCore/Extensions/Metadata/BehaviorMetadata.h

@@ -307,6 +307,15 @@ class GD_CORE_API BehaviorMetadata : public InstructionOrExpressionContainerMeta
     return *this;
   }
 
+  BehaviorMetadata &SetOpenFullEditorLabel(const gd::String& label) {
+    openFullEditorLabel = label;
+    return *this;
+  }
+
+  const gd::String& GetOpenFullEditorLabel() const {
+    return openFullEditorLabel;
+  }
+
   /**
    * \brief Return the associated gd::Behavior, handling behavior contents.
    *
@@ -384,7 +393,8 @@ class GD_CORE_API BehaviorMetadata : public InstructionOrExpressionContainerMeta
   mutable std::vector<gd::String> requiredBehaviors;
   bool isPrivate = false;
   bool isHidden = false;
-  QuickCustomization::Visibility quickCustomizationVisibility;
+  gd::String openFullEditorLabel;
+  QuickCustomization::Visibility quickCustomizationVisibility = QuickCustomization::Visibility::Default;
 
   // TODO: Nitpicking: convert these to std::unique_ptr to clarify ownership.
   std::shared_ptr<gd::Behavior> instance;

Core/GDCore/Extensions/Metadata/EffectMetadata.h

@@ -185,10 +185,10 @@ class GD_CORE_API EffectMetadata {
   gd::String fullname;
   gd::String description;
   std::vector<gd::String> includeFiles;
-  bool isMarkedAsNotWorkingForObjects;
-  bool isMarkedAsOnlyWorkingFor2D;
-  bool isMarkedAsOnlyWorkingFor3D;
-  bool isMarkedAsUnique;
+  bool isMarkedAsNotWorkingForObjects = false;
+  bool isMarkedAsOnlyWorkingFor2D = false;
+  bool isMarkedAsOnlyWorkingFor3D = false;
+  bool isMarkedAsUnique = false;
   std::map<gd::String, gd::PropertyDescriptor> properties;
 };
 

Core/GDCore/Extensions/Metadata/EventMetadata.cpp

@@ -19,7 +19,8 @@ EventMetadata::EventMetadata(const gd::String &name_,
     : fullname(fullname_),
       description(description_),
       group(group_),
-      instance(instance_) {
+      instance(instance_),
+      hasCustomCodeGenerator(false) {
   ClearCodeGenerationAndPreprocessing();
   if (instance) instance->SetType(name_);
 }

Core/GDCore/Extensions/Metadata/EventMetadata.h

@@ -83,7 +83,7 @@ class GD_CORE_API EventMetadata {
   gd::String group;
 
   std::shared_ptr<gd::BaseEvent> instance;
-  bool hasCustomCodeGenerator;
+  bool hasCustomCodeGenerator = false;
   std::function<gd::String(gd::BaseEvent& event,
                            gd::EventsCodeGenerator& codeGenerator,
                            gd::EventsCodeGenerationContext& context)>

Core/GDCore/Extensions/Metadata/MetadataProvider.h

@@ -288,8 +288,8 @@ class GD_CORE_API MetadataProvider {
   static EffectMetadata badEffectMetadata;
   static gd::InstructionMetadata badInstructionMetadata;
   static gd::ExpressionMetadata badExpressionMetadata;
-  int useless;  // Useless member to avoid emscripten "must have a positive
-                // integer typeid pointer" runtime error.
+  int useless = 0;  // Useless member to avoid emscripten "must have a positive
+                    // integer typeid pointer" runtime error.
 };
 
 }  // namespace gd

Core/GDCore/Extensions/Metadata/ObjectMetadata.h

@@ -323,6 +323,15 @@ class GD_CORE_API ObjectMetadata : public InstructionOrExpressionContainerMetada
    */
   bool IsRenderedIn3D() const { return isRenderedIn3D; }
 
+  ObjectMetadata &SetOpenFullEditorLabel(const gd::String& label) {
+    openFullEditorLabel = label;
+    return *this;
+  }
+
+  const gd::String& GetOpenFullEditorLabel() const {
+    return openFullEditorLabel;
+  }
+
   std::map<gd::String, gd::InstructionMetadata> conditionsInfos;
   std::map<gd::String, gd::InstructionMetadata> actionsInfos;
   std::map<gd::String, gd::ExpressionMetadata> expressionsInfos;
@@ -344,6 +353,7 @@ class GD_CORE_API ObjectMetadata : public InstructionOrExpressionContainerMetada
   std::set<gd::String> defaultBehaviorTypes;
   bool hidden = false;
   bool isRenderedIn3D = false;
+  gd::String openFullEditorLabel;
 
   std::shared_ptr<gd::ObjectConfiguration>
       blueprintObject;  ///< The "blueprint" object to be copied when a new

Core/GDCore/Extensions/Metadata/ValueTypeMetadata.cpp

@@ -53,20 +53,23 @@ const gd::String &ValueTypeMetadata::GetExpressionPrimitiveValueType(
 
 const gd::String &
 ValueTypeMetadata::GetPrimitiveValueType(const gd::String &parameterType) {
-  if (parameterType == "variable" ||
-      gd::ValueTypeMetadata::IsTypeExpression("variable", parameterType)) {
-    return ValueTypeMetadata::variableType;
+  if (parameterType == "number" ||
+      gd::ValueTypeMetadata::IsTypeValue("number", parameterType)) {
+    return ValueTypeMetadata::numberType;
   }
-  if (parameterType == "boolean" || parameterType == "yesorno" ||
-      parameterType == "trueorfalse") {
-    return ValueTypeMetadata::booleanType;
-  }
-  // These 2 types are not strings from the code generator point of view,
-  // but it is for event-based extensions.
-  if (parameterType == "key" || parameterType == "mouse") {
+  if (parameterType == "string" ||
+      gd::ValueTypeMetadata::IsTypeValue("string", parameterType)) {
     return ValueTypeMetadata::stringType;
   }
-  return GetExpressionPrimitiveValueType(parameterType);
+  if (parameterType == "variable" ||
+      gd::ValueTypeMetadata::IsTypeValue("variable", parameterType)) {
+    return ValueTypeMetadata::variableType;
+  }
+  if (parameterType == "boolean" ||
+      gd::ValueTypeMetadata::IsTypeValue("boolean", parameterType)) {
+    return ValueTypeMetadata::booleanType;
+  }
+  return parameterType;
 }
 
 const gd::String ValueTypeMetadata::numberValueType = "number";

Core/GDCore/Extensions/Metadata/ValueTypeMetadata.h

@@ -111,21 +111,21 @@ class GD_CORE_API ValueTypeMetadata {
    * given type.
    */
   bool IsNumber() const {
-    return gd::ValueTypeMetadata::IsTypeExpression("number", name);
+    return gd::ValueTypeMetadata::IsTypeValue("number", name);
   }
 
   /**
    * \brief Return true if the type is a string.
    */
   bool IsString() const {
-    return gd::ValueTypeMetadata::IsTypeExpression("string", name);
+    return gd::ValueTypeMetadata::IsTypeValue("string", name);
   }
 
   /**
    * \brief Return true if the type is a boolean.
    */
   bool IsBoolean() const {
-    return gd::ValueTypeMetadata::IsTypeExpression("boolean", name);
+    return gd::ValueTypeMetadata::IsTypeValue("boolean", name);
   }
 
   /**
@@ -135,7 +135,7 @@ class GD_CORE_API ValueTypeMetadata {
    * and ExpressionAutocompletion) and in the EventsCodeGenerator.
    */
   bool IsVariable() const {
-    return gd::ValueTypeMetadata::IsTypeExpression("variable", name);
+    return gd::ValueTypeMetadata::GetPrimitiveValueType(name) == "variable";
   }
 
   /**
@@ -175,7 +175,9 @@ class GD_CORE_API ValueTypeMetadata {
   }
 
   /**
-   * \brief Return true if the type is an expression of the given type.
+   * \brief Return true if the type is an expression of the given type from the
+   * caller point of view.
+   *
    * \note If you are adding a new type of parameter, also add it in the IDE (
    * see EventsFunctionParametersEditor, ParameterRenderingService
    * and ExpressionAutocompletion) and in the EventsCodeGenerator.
@@ -186,6 +188,7 @@ class GD_CORE_API ValueTypeMetadata {
       return parameterType == "number" || parameterType == "expression" ||
              parameterType == "camera" || parameterType == "forceMultiplier";
     } else if (type == "string") {
+      // "key" and "mouse" are not mapped her, see GetPrimitiveValueType.
       return parameterType == "string" || parameterType == "layer" ||
              parameterType == "color" || parameterType == "file" ||
              parameterType == "stringWithSelector" ||
@@ -227,6 +230,26 @@ class GD_CORE_API ValueTypeMetadata {
     return false;
   }
 
+  /**
+   * \brief Return true if the type is a value of the given primitive type from
+   * the function events point of view
+   */
+  static bool IsTypeValue(const gd::String &type,
+                           const gd::String &parameterType) {
+    if (gd::ValueTypeMetadata::IsTypeExpression(type, parameterType)) {
+      return true;
+    }
+    // These 2 parameter types are not strings from the outside of a function as
+    // the generator add quote around a text, but from the events inside of the
+    // function the parameter is a string.
+    //
+    // See EventsCodeGenerator::GenerateParameterCodes
+    if (type == "string") {
+      return parameterType == "key" || parameterType == "mouse";
+    }
+    return false;
+  }
+
   /**
    * \brief Return the expression type from the parameter type.
    * Declinations of "number" and "string" types (like "forceMultiplier" or

Core/GDCore/Extensions/PlatformExtension.cpp

@@ -808,6 +808,24 @@ gd::String PlatformExtension::GetObjectFullType(const gd::String &extensionName,
   return extensionName + separator + objectName;
 }
 
+gd::String PlatformExtension::GetExtensionFromFullObjectType(const gd::String& type) {
+  const auto separatorIndex =
+      type.find(PlatformExtension::GetNamespaceSeparator());
+  if (separatorIndex == std::string::npos) {
+    return "";
+  }
+  return type.substr(0, separatorIndex);
+}
+
+gd::String PlatformExtension::GetObjectNameFromFullObjectType(const gd::String& type) {
+  const auto separatorIndex =
+      type.find(PlatformExtension::GetNamespaceSeparator());
+  if (separatorIndex == std::string::npos) {
+    return "";
+  }
+  return type.substr(separatorIndex + 2);
+}
+
 PlatformExtension::PlatformExtension()
     : deprecated(false), category(_("General")) {}
 

Core/GDCore/Extensions/PlatformExtension.h

@@ -40,8 +40,7 @@ class Object;
 class ObjectConfiguration;
 }  // namespace gd
 
-typedef std::function<std::unique_ptr<gd::ObjectConfiguration>()>
-    CreateFunPtr;
+typedef std::function<std::unique_ptr<gd::ObjectConfiguration>()> CreateFunPtr;
 
 namespace gd {
 
@@ -51,25 +50,25 @@ namespace gd {
  */
 class GD_CORE_API CompilationInfo {
  public:
-  CompilationInfo() : informationCompleted(false){};
-  virtual ~CompilationInfo(){};
+  CompilationInfo() {};
+  virtual ~CompilationInfo() {};
 
-  bool informationCompleted;
+  bool informationCompleted = false;
 
-  bool runtimeOnly;  ///< True if the extension was compiled for a runtime use
-                     ///< only
+  bool runtimeOnly = false;  ///< True if the extension was compiled for a
+                             ///< runtime use only
 
 #if defined(__GNUC__)
-  int gccMajorVersion;
-  int gccMinorVersion;
-  int gccPatchLevel;
+  int gccMajorVersion = 0;
+  int gccMinorVersion = 0;
+  int gccPatchLevel = 0;
 #endif
 
-  int sfmlMajorVersion;
-  int sfmlMinorVersion;
+  int sfmlMajorVersion = 0;
+  int sfmlMinorVersion = 0;
 
   gd::String gdCoreVersion;
-  int sizeOfpInt;
+  int sizeOfpInt = 0;
 };
 
 struct GD_CORE_API DuplicatedInstructionOptions {
@@ -239,11 +238,12 @@ class GD_CORE_API PlatformExtension {
    * \param instance The "blueprint" object to be copied when a new object is
    asked for.
    */
-  gd::ObjectMetadata& AddObject(const gd::String& name_,
-                                const gd::String& fullname_,
-                                const gd::String& description_,
-                                const gd::String& icon_,
-                                std::shared_ptr<gd::ObjectConfiguration> instance);
+  gd::ObjectMetadata& AddObject(
+      const gd::String& name_,
+      const gd::String& fullname_,
+      const gd::String& description_,
+      const gd::String& icon_,
+      std::shared_ptr<gd::ObjectConfiguration> instance);
 
   /**
    * \brief Declare a new events based object as being part of the extension.
@@ -253,11 +253,10 @@ class GD_CORE_API PlatformExtension {
    * \param description The user friendly description of the object
    * \param icon The icon of the object.
    */
-  gd::ObjectMetadata& AddEventsBasedObject(
-      const gd::String& name_,
-      const gd::String& fullname_,
-      const gd::String& description_,
-      const gd::String& icon_);
+  gd::ObjectMetadata& AddEventsBasedObject(const gd::String& name_,
+                                           const gd::String& fullname_,
+                                           const gd::String& description_,
+                                           const gd::String& icon_);
 
   /**
    * \brief Declare a new behavior as being part of the extension.
@@ -420,8 +419,7 @@ class GD_CORE_API PlatformExtension {
   PlatformExtension& SetTags(const gd::String& csvTags) {
     tags.clear();
     tags = csvTags.Split(',');
-    for (size_t i = 0; i < tags.size(); i++)
-    {
+    for (size_t i = 0; i < tags.size(); i++) {
       tags[i] = tags[i].Trim().LowerCase();
     }
     return *this;
@@ -634,26 +632,30 @@ class GD_CORE_API PlatformExtension {
    */
   static gd::String GetNamespaceSeparator() { return "::"; }
 
-  static gd::String GetEventsFunctionFullType(const gd::String &extensionName,
-                                              const gd::String &functionName);
+  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 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 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 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);
+  static gd::String GetObjectFullType(const gd::String& extensionName,
+                                      const gd::String& objectName);
 
-private:
+  static gd::String GetExtensionFromFullObjectType(const gd::String& type);
+
+  static gd::String GetObjectNameFromFullObjectType(const gd::String& type);
+
+ private:
   /**
    * Set the namespace (the string all actions/conditions/expressions start
    * with).
@@ -668,10 +670,10 @@ private:
   gd::String fullname;      ///< Name displayed to users in the editor.
   gd::String informations;  ///< Description displayed to users in the editor.
   gd::String category;
-  gd::String author;        ///< Author displayed to users in the editor.
-  gd::String license;       ///< License name displayed to users in the editor.
-  bool deprecated;  ///< true if the extension is deprecated and shouldn't be
-                    ///< shown in IDE.
+  gd::String author;   ///< Author displayed to users in the editor.
+  gd::String license;  ///< License name displayed to users in the editor.
+  bool deprecated;     ///< true if the extension is deprecated and shouldn't be
+                       ///< shown in IDE.
   gd::String helpPath;  ///< The relative path to the help for this extension in
                         ///< the documentation.
   gd::String iconUrl;   ///< The URL to the icon to be shown for this extension.

Core/GDCore/Extensions/PlatformExtension.inl

@@ -5,6 +5,8 @@
  * project is released under the MIT License.
  */
 
+// NOLINTBEGIN
+
 #ifndef GDCORE_PLATFORMEXTENSION_INL
 #define GDCORE_PLATFORMEXTENSION_INL
 
@@ -36,3 +38,5 @@ gd::ObjectMetadata& PlatformExtension::AddObject(const gd::String& name,
 }  // namespace gd
 
 #endif
+
+// NOLINTEND

Core/GDCore/IDE/EventBasedBehaviorBrowser.cpp

@@ -29,9 +29,6 @@ void EventBasedBehaviorBrowser::ExposeEvents(
       project, eventsFunctionsExtension, eventsBasedBehavior, worker);
 }
 
-void EventBasedBehaviorBrowser::ExposeObjects(
-    gd::Project &project, gd::ArbitraryObjectsWorker &worker) const {}
-
 void EventBasedBehaviorBrowser::ExposeFunctions(
     gd::Project &project, gd::ArbitraryEventsFunctionsWorker &worker) const {
   worker.Launch(eventsBasedBehavior.GetEventsFunctions());
@@ -43,7 +40,4 @@ void EventBasedBehaviorBrowser::ExposeEventBasedBehaviors(
   worker.Launch(eventsBasedBehavior);
 }
 
-void EventBasedBehaviorBrowser::ExposeBehaviorSharedDatas(
-    gd::Project &project, gd::ArbitraryBehaviorSharedDataWorker &worker) const {}
-
 } // namespace gd

Core/GDCore/IDE/EventBasedBehaviorBrowser.h

@@ -67,7 +67,7 @@ public:
    * \brief Do nothing.
    */
   void ExposeObjects(gd::Project &project,
-                     gd::ArbitraryObjectsWorker &worker) const override;
+                     gd::ArbitraryObjectsWorker &worker) const override {};
 
   /**
    * \brief Call the specified worker on the event-based behavior.
@@ -80,7 +80,7 @@ public:
    * \brief Do nothing.
    */
   void ExposeBehaviorSharedDatas(gd::Project &project,
-                         gd::ArbitraryBehaviorSharedDataWorker &worker) const override;
+                         gd::ArbitraryBehaviorSharedDataWorker &worker) const override {};
 
 private:
   const gd::EventsFunctionsExtension &eventsFunctionsExtension;

Core/GDCore/IDE/EventBasedObjectBrowser.cpp

@@ -0,0 +1,37 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "EventBasedObjectBrowser.h"
+
+#include "GDCore/IDE/Events/ArbitraryEventsWorker.h"
+#include "GDCore/IDE/Project/ArbitraryEventBasedBehaviorsWorker.h"
+#include "GDCore/IDE/Project/ArbitraryEventsFunctionsWorker.h"
+#include "GDCore/IDE/Project/ArbitraryObjectsWorker.h"
+#include "GDCore/IDE/Project/ArbitraryBehaviorSharedDataWorker.h"
+#include "GDCore/IDE/ProjectBrowserHelper.h"
+#include "GDCore/Project/EventsBasedObject.h"
+#include "GDCore/Project/Project.h"
+#include "GDCore/String.h"
+
+namespace gd {
+
+void EventBasedObjectBrowser::ExposeEvents(
+    gd::Project &project, gd::ArbitraryEventsWorker &worker) const {
+  gd::ProjectBrowserHelper::ExposeEventsBasedObjectEvents(
+      project, eventsBasedObject, worker);
+}
+
+void EventBasedObjectBrowser::ExposeEvents(
+    gd::Project &project, gd::ArbitraryEventsWorkerWithContext &worker) const {
+  gd::ProjectBrowserHelper::ExposeEventsBasedObjectEvents(
+      project, eventsFunctionsExtension, eventsBasedObject, worker);
+}
+
+void EventBasedObjectBrowser::ExposeFunctions(
+    gd::Project &project, gd::ArbitraryEventsFunctionsWorker &worker) const {
+  worker.Launch(eventsBasedObject.GetEventsFunctions());
+}
+
+} // namespace gd

Core/GDCore/IDE/EventBasedObjectBrowser.h

@@ -0,0 +1,90 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#pragma once
+
+#include "GDCore/IDE/ProjectBrowser.h"
+
+namespace gd {
+class Project;
+class String;
+class EventsFunctionsExtension;
+class EventsFunction;
+class EventsBasedBehavior;
+class EventsBasedObject;
+class ArbitraryEventsWorker;
+class ArbitraryEventsWorkerWithContext;
+class ArbitraryEventsFunctionsWorker;
+class ArbitraryObjectsWorker;
+class ArbitraryEventBasedBehaviorsWorker;
+class ArbitraryBehaviorSharedDataWorker;
+} // namespace gd
+
+namespace gd {
+
+/**
+ * \brief Expose event-based object contents to workers.
+ */
+class GD_CORE_API EventBasedObjectBrowser : public ProjectBrowser {
+public:
+  EventBasedObjectBrowser(
+      const gd::EventsFunctionsExtension &eventsFunctionsExtension_,
+      gd::EventsBasedObject &eventsBasedObject_)
+      : eventsFunctionsExtension(eventsFunctionsExtension_),
+        eventsBasedObject(eventsBasedObject_) {}
+
+  /**
+   * \brief Call the specified worker on all events of the event-based
+   * object.
+   *
+   * This should be the preferred way to traverse all the events of an event-based object.
+   */
+  void ExposeEvents(gd::Project &project,
+                    gd::ArbitraryEventsWorker &worker) const override;
+
+  /**
+   * \brief Call the specified worker on all events of the event-based
+   * object.
+   *
+   * This should be the preferred way to traverse all the events of an event-based object.
+   */
+  void
+  ExposeEvents(gd::Project &project, 
+               gd::ArbitraryEventsWorkerWithContext &worker) const override;
+
+  /**
+   * \brief Call the specified worker on all functions of the event-based object
+   *
+   * This should be the preferred way to traverse all the function signatures
+   * of an event-based object.
+   */
+  void ExposeFunctions(gd::Project &project,
+                       gd::ArbitraryEventsFunctionsWorker &worker) const override;
+
+  /**
+   * \brief Do nothing.
+   */
+  void ExposeObjects(gd::Project &project,
+                     gd::ArbitraryObjectsWorker &worker) const override {};
+
+  /**
+   * @brief Do nothing.
+   */
+  void ExposeEventBasedBehaviors(
+      gd::Project &project,
+      gd::ArbitraryEventBasedBehaviorsWorker &worker) const override {};
+
+  /**
+   * \brief Do nothing.
+   */
+  void ExposeBehaviorSharedDatas(gd::Project &project,
+                         gd::ArbitraryBehaviorSharedDataWorker &worker) const override {};
+
+private:
+  const gd::EventsFunctionsExtension &eventsFunctionsExtension;
+  gd::EventsBasedObject &eventsBasedObject;
+};
+
+} // namespace gd

Core/GDCore/IDE/Events/ExpressionCompletionFinder.h

@@ -337,19 +337,19 @@ struct GD_CORE_API ExpressionCompletionDescription {
 
  private:
   CompletionKind completionKind;
-  gd::Variable::Type variableType;
-  gd::VariablesContainer::SourceType variableScope;
+  gd::Variable::Type variableType = gd::Variable::Unknown;
+  gd::VariablesContainer::SourceType variableScope = gd::VariablesContainer::Unknown;
   gd::String type;
   gd::String prefix;
   gd::String completion;
-  size_t replacementStartPosition;
-  size_t replacementEndPosition;
+  size_t replacementStartPosition = 0;
+  size_t replacementEndPosition = 0;
   gd::String objectName;
   gd::String behaviorName;
-  bool isExact;
-  bool isLastParameter;
-  const gd::ParameterMetadata* parameterMetadata;
-  const gd::ObjectConfiguration* objectConfiguration;
+  bool isExact = false;
+  bool isLastParameter = false;
+  const gd::ParameterMetadata* parameterMetadata = &badParameterMetadata;
+  const gd::ObjectConfiguration* objectConfiguration = &badObjectConfiguration;
 
   static const gd::ParameterMetadata badParameterMetadata;
   static const gd::ObjectConfiguration badObjectConfiguration;

Core/GDCore/IDE/Events/ExpressionNodeLocationFinder.h

@@ -33,8 +33,10 @@ class GD_CORE_API ExpressionNodeLocationFinder
    * \brief Initialize the finder to search at the specified position.
    */
   ExpressionNodeLocationFinder(size_t searchedPosition_)
-      : searchedPosition(searchedPosition_), foundNode(nullptr){};
-  virtual ~ExpressionNodeLocationFinder(){};
+      : searchedPosition(searchedPosition_),
+        foundNode(nullptr),
+        parentNode(nullptr) {};
+  virtual ~ExpressionNodeLocationFinder() {};
 
   /**
    * \brief Helper function to find the deepest node at the search position, if

Core/GDCore/IDE/Events/ExpressionTypeFinder.h

@@ -72,7 +72,7 @@ class GD_CORE_API ExpressionTypeFinder : public ExpressionParser2NodeWorker {
         child(nullptr) {};
 
   const gd::String &GetType() {
-    return gd::ParameterMetadata::GetExpressionValueType(type);
+    return gd::ValueTypeMetadata::GetExpressionPrimitiveValueType(type);
   };
 
   void OnVisitSubExpressionNode(SubExpressionNode& node) override {

Core/GDCore/IDE/Events/ExpressionValidator.h

@@ -42,7 +42,7 @@ class GD_CORE_API ExpressionValidator : public ExpressionParser2NodeWorker {
                       const gd::String &extraInfo_ = "")
       : platform(platform_),
         projectScopedContainers(projectScopedContainers_),
-        parentType(StringToType(gd::ParameterMetadata::GetExpressionValueType(rootType_))),
+        parentType(StringToType(gd::ValueTypeMetadata::GetExpressionPrimitiveValueType(rootType_))),
         childType(Type::Unknown),
         forbidsUsageOfBracketsBecauseParentIsObject(false),
         currentParameterExtraInfo(&extraInfo_) {};

Core/GDCore/IDE/Events/ExpressionsParameterMover.h

@@ -74,8 +74,8 @@ class GD_CORE_API ExpressionsParameterMover
 
   const gd::Platform &platform;
   gd::String functionName;
-  std::size_t oldIndex;
-  std::size_t newIndex;
+  std::size_t oldIndex = 0;
+  std::size_t newIndex = 0;
   gd::String behaviorType;
   gd::String objectType;
 };

Core/GDCore/IDE/ExportedDependencyResolver.h

@@ -4,6 +4,7 @@
 #include "GDCore/Extensions/Metadata/DependencyMetadata.h"
 #include "GDCore/Extensions/PlatformExtension.h"
 #include "GDCore/Project/Project.h"
+#include "GDCore/Extensions/Platform.h"
 
 namespace gd {
 

Core/GDCore/IDE/ResourceExposer.cpp

@@ -6,17 +6,9 @@
 #include "ResourceExposer.h"
 
 #include "GDCore/IDE/Events/ArbitraryEventsWorker.h"
-#include "GDCore/IDE/EventsFunctionTools.h"
-#include "GDCore/IDE/Project/ArbitraryBehaviorSharedDataWorker.h"
-#include "GDCore/IDE/Project/ArbitraryEventBasedBehaviorsWorker.h"
-#include "GDCore/IDE/Project/ArbitraryEventsFunctionsWorker.h"
-#include "GDCore/IDE/Project/ArbitraryObjectsWorker.h"
 #include "GDCore/IDE/Project/ArbitraryResourceWorker.h"
 #include "GDCore/IDE/ProjectBrowserHelper.h"
-#include "GDCore/Project/EventsBasedBehavior.h"
-#include "GDCore/Project/EventsBasedObject.h"
 #include "GDCore/Project/EventsFunctionsExtension.h"
-#include "GDCore/Project/ExternalEvents.h"
 #include "GDCore/Project/Layout.h"
 #include "GDCore/Project/Project.h"
 #include "GDCore/Project/Effect.h"
@@ -24,7 +16,6 @@
 #include "GDCore/Extensions/Platform.h"
 #include "GDCore/Extensions/Metadata/MetadataProvider.h"
 #include "GDCore/Extensions/Metadata/EffectMetadata.h"
-#include "GDCore/IDE/Events/UsedExtensionsFinder.h"
 
 namespace gd {
 

Core/GDCore/IDE/WholeProjectRefactorer.cpp

@@ -13,6 +13,7 @@
 #include "GDCore/IDE/DependenciesAnalyzer.h"
 #include "GDCore/IDE/GroupVariableHelper.h"
 #include "GDCore/IDE/EventBasedBehaviorBrowser.h"
+#include "GDCore/IDE/EventBasedObjectBrowser.h"
 #include "GDCore/IDE/Events/ArbitraryEventsWorker.h"
 #include "GDCore/IDE/Events/BehaviorParametersFiller.h"
 #include "GDCore/IDE/Events/BehaviorTypeRenamer.h"
@@ -28,11 +29,6 @@
 #include "GDCore/IDE/Events/InstructionsTypeRenamer.h"
 #include "GDCore/IDE/Events/LinkEventTargetRenamer.h"
 #include "GDCore/IDE/Events/ProjectElementRenamer.h"
-#include "GDCore/IDE/EventsFunctionTools.h"
-#include "GDCore/IDE/Project/ArbitraryBehaviorSharedDataWorker.h"
-#include "GDCore/IDE/Project/ArbitraryEventBasedBehaviorsWorker.h"
-#include "GDCore/IDE/Project/ArbitraryEventsFunctionsWorker.h"
-#include "GDCore/IDE/Project/ArbitraryObjectsWorker.h"
 #include "GDCore/IDE/Project/BehaviorObjectTypeRenamer.h"
 #include "GDCore/IDE/Project/BehaviorsSharedDataBehaviorTypeRenamer.h"
 #include "GDCore/IDE/Project/FunctionParameterBehaviorTypeRenamer.h"
@@ -415,20 +411,32 @@ void WholeProjectRefactorer::UpdateExtensionNameInEventsBasedBehavior(
     const gd::EventsFunctionsExtension &eventsFunctionsExtension,
     gd::EventsBasedBehavior &eventsBasedBehavior,
     const gd::String &sourceExtensionName) {
-  const EventBasedBehaviorBrowser eventBasedBehaviorExposer(
+  const EventBasedBehaviorBrowser eventBasedBehaviorBrowser(
       eventsFunctionsExtension, eventsBasedBehavior);
   WholeProjectRefactorer::RenameEventsFunctionsExtension(
       project, eventsFunctionsExtension, sourceExtensionName,
-      eventsFunctionsExtension.GetName(), eventBasedBehaviorExposer);
+      eventsFunctionsExtension.GetName(), eventBasedBehaviorBrowser);
+}
+
+void WholeProjectRefactorer::UpdateExtensionNameInEventsBasedObject(
+    gd::Project &project,
+    const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+    gd::EventsBasedObject &eventsBasedObject,
+    const gd::String &sourceExtensionName) {
+  const EventBasedObjectBrowser eventBasedObjectBrowser(
+      eventsFunctionsExtension, eventsBasedObject);
+  WholeProjectRefactorer::RenameEventsFunctionsExtension(
+      project, eventsFunctionsExtension, sourceExtensionName,
+      eventsFunctionsExtension.GetName(), eventBasedObjectBrowser);
 }
 
 void WholeProjectRefactorer::RenameEventsFunctionsExtension(
     gd::Project &project,
     const gd::EventsFunctionsExtension &eventsFunctionsExtension,
     const gd::String &oldName, const gd::String &newName) {
-  const WholeProjectBrowser wholeProjectExposer;
+  const WholeProjectBrowser wholeProjectBrowser;
   RenameEventsFunctionsExtension(project, eventsFunctionsExtension, oldName,
-                                 newName, wholeProjectExposer);
+                                 newName, wholeProjectBrowser);
 }
 
 void WholeProjectRefactorer::RenameEventsFunctionsExtension(
@@ -1312,6 +1320,19 @@ bool WholeProjectRefactorer::FixInvalidRequiredBehaviorProperties(
   return !invalidRequiredBehaviorProblems.empty();
 }
 
+void WholeProjectRefactorer::UpdateBehaviorNameInEventsBasedBehavior(
+    gd::Project &project,
+    const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+    gd::EventsBasedBehavior &eventsBasedBehavior,
+    const gd::String &sourceBehaviorName) {
+  const EventBasedBehaviorBrowser eventBasedBehaviorExposer(
+      eventsFunctionsExtension, eventsBasedBehavior);
+  WholeProjectRefactorer::RenameEventsBasedBehavior(
+      project, eventsFunctionsExtension, eventsBasedBehavior,
+      sourceBehaviorName, eventsBasedBehavior.GetName(),
+      eventBasedBehaviorExposer);
+}
+
 void WholeProjectRefactorer::RenameEventsBasedBehavior(
     gd::Project &project,
     const gd::EventsFunctionsExtension &eventsFunctionsExtension,
@@ -1324,10 +1345,22 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
     return;
   }
   auto &eventsBasedBehavior = eventsBasedBehaviors.Get(oldBehaviorName);
+  const WholeProjectBrowser projectBrowser;
+  WholeProjectRefactorer::RenameEventsBasedBehavior(
+      project, eventsFunctionsExtension, eventsBasedBehavior, oldBehaviorName,
+      newBehaviorName, projectBrowser);
+}
 
+void WholeProjectRefactorer::RenameEventsBasedBehavior(
+    gd::Project &project,
+    const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+    const gd::EventsBasedBehavior &eventsBasedBehavior,
+    const gd::String &oldBehaviorName,
+    const gd::String &newBehaviorName,
+    const gd::ProjectBrowser &projectBrowser) {
   auto renameBehaviorEventsFunction =
       [&project, &eventsFunctionsExtension, &oldBehaviorName,
-       &newBehaviorName](const gd::EventsFunction &eventsFunction) {
+       &newBehaviorName, &projectBrowser](const gd::EventsFunction &eventsFunction) {
         if (eventsFunction.IsExpression()) {
           // Nothing to do, expressions are not including the name of the
           // behavior
@@ -1341,12 +1374,12 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
               gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
                   eventsFunctionsExtension.GetName(), newBehaviorName,
                   eventsFunction.GetName()));
-          gd::ProjectBrowserHelper::ExposeProjectEvents(project, renamer);
+          projectBrowser.ExposeEvents(project, renamer);
         }
       };
 
   auto renameBehaviorProperty = [&project, &eventsFunctionsExtension,
-                                 &oldBehaviorName, &newBehaviorName](
+                                 &oldBehaviorName, &newBehaviorName, &projectBrowser](
                                     const gd::NamedPropertyDescriptor
                                         &property) {
     gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
@@ -1357,7 +1390,7 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
         gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(), newBehaviorName,
             EventsBasedBehavior::GetPropertyActionName(property.GetName())));
-    gd::ProjectBrowserHelper::ExposeProjectEvents(project, actionRenamer);
+    projectBrowser.ExposeEvents(project, actionRenamer);
 
     gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
         project,
@@ -1367,7 +1400,7 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
         gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
             eventsFunctionsExtension.GetName(), newBehaviorName,
             EventsBasedBehavior::GetPropertyConditionName(property.GetName())));
-    gd::ProjectBrowserHelper::ExposeProjectEvents(project, conditionRenamer);
+    projectBrowser.ExposeEvents(project, conditionRenamer);
 
     // Nothing to do for expression, expressions are not including the name of
     // the behavior
@@ -1375,7 +1408,7 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
 
   auto renameBehaviorSharedProperty =
       [&project, &eventsFunctionsExtension, &oldBehaviorName,
-       &newBehaviorName](const gd::NamedPropertyDescriptor &property) {
+       &newBehaviorName, &projectBrowser](const gd::NamedPropertyDescriptor &property) {
         gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
             project,
             gd::PlatformExtension::GetBehaviorEventsFunctionFullType(
@@ -1386,7 +1419,7 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
                 eventsFunctionsExtension.GetName(), newBehaviorName,
                 EventsBasedBehavior::GetSharedPropertyActionName(
                     property.GetName())));
-        gd::ProjectBrowserHelper::ExposeProjectEvents(project, actionRenamer);
+        projectBrowser.ExposeEvents(project, actionRenamer);
 
         gd::InstructionsTypeRenamer conditionRenamer =
             gd::InstructionsTypeRenamer(
@@ -1399,8 +1432,7 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
                     eventsFunctionsExtension.GetName(), newBehaviorName,
                     EventsBasedBehavior::GetSharedPropertyConditionName(
                         property.GetName())));
-        gd::ProjectBrowserHelper::ExposeProjectEvents(project,
-                                                      conditionRenamer);
+        projectBrowser.ExposeEvents(project, conditionRenamer);
 
         // Nothing to do for expression, expressions are not including the name
         // of the behavior
@@ -1435,13 +1467,25 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
     renameBehaviorSharedProperty(*property);
   }
 
-  const WholeProjectBrowser wholeProjectExposer;
   DoRenameBehavior(project,
                    gd::PlatformExtension::GetBehaviorFullType(
                        eventsFunctionsExtension.GetName(), oldBehaviorName),
                    gd::PlatformExtension::GetBehaviorFullType(
                        eventsFunctionsExtension.GetName(), newBehaviorName),
-                   wholeProjectExposer);
+                   projectBrowser);
+}
+
+void WholeProjectRefactorer::UpdateObjectNameInEventsBasedObject(
+    gd::Project &project,
+    const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+    gd::EventsBasedObject &eventsBasedObject,
+    const gd::String &sourceObjectName) {
+  const EventBasedObjectBrowser eventBasedObjectBrowser(
+      eventsFunctionsExtension, eventsBasedObject);
+  WholeProjectRefactorer::RenameEventsBasedObject(
+      project, eventsFunctionsExtension, eventsBasedObject,
+      sourceObjectName, eventsBasedObject.GetName(),
+      eventBasedObjectBrowser);
 }
 
 void WholeProjectRefactorer::RenameEventsBasedObject(
@@ -1455,10 +1499,21 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
     return;
   }
   auto &eventsBasedObject = eventsBasedObjects.Get(oldObjectName);
+  const WholeProjectBrowser projectBrowser;
+  WholeProjectRefactorer::RenameEventsBasedObject(
+      project, eventsFunctionsExtension, eventsBasedObject, oldObjectName,
+      newObjectName, projectBrowser);
+}
 
+void WholeProjectRefactorer::RenameEventsBasedObject(
+    gd::Project &project,
+    const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+    const gd::EventsBasedObject &eventsBasedObject,
+    const gd::String &oldObjectName, const gd::String &newObjectName,
+    const gd::ProjectBrowser &projectBrowser) {
   auto renameObjectEventsFunction =
-      [&project, &eventsFunctionsExtension, &oldObjectName,
-       &newObjectName](const gd::EventsFunction &eventsFunction) {
+      [&project, &eventsFunctionsExtension, &oldObjectName, &newObjectName,
+       &projectBrowser](const gd::EventsFunction &eventsFunction) {
         if (eventsFunction.IsExpression()) {
           // Nothing to do, expressions are not including the name of the
           // object
@@ -1472,12 +1527,12 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
               gd::PlatformExtension::GetObjectEventsFunctionFullType(
                   eventsFunctionsExtension.GetName(), newObjectName,
                   eventsFunction.GetName()));
-          gd::ProjectBrowserHelper::ExposeProjectEvents(project, renamer);
+          projectBrowser.ExposeEvents(project, renamer);
         }
       };
 
   auto renameObjectProperty = [&project, &eventsFunctionsExtension,
-                               &oldObjectName, &newObjectName](
+                               &oldObjectName, &newObjectName, &projectBrowser](
                                   const gd::NamedPropertyDescriptor &property) {
     gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
         project,
@@ -1487,7 +1542,7 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
         gd::PlatformExtension::GetObjectEventsFunctionFullType(
             eventsFunctionsExtension.GetName(), newObjectName,
             EventsBasedObject::GetPropertyActionName(property.GetName())));
-    gd::ProjectBrowserHelper::ExposeProjectEvents(project, actionRenamer);
+    projectBrowser.ExposeEvents(project, actionRenamer);
 
     gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
         project,
@@ -1497,7 +1552,7 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
         gd::PlatformExtension::GetObjectEventsFunctionFullType(
             eventsFunctionsExtension.GetName(), newObjectName,
             EventsBasedObject::GetPropertyConditionName(property.GetName())));
-    gd::ProjectBrowserHelper::ExposeProjectEvents(project, conditionRenamer);
+    projectBrowser.ExposeEvents(project, conditionRenamer);
 
     // Nothing to do for expression, expressions are not including the name of
     // the object
@@ -1528,13 +1583,12 @@ void WholeProjectRefactorer::RenameEventsBasedObject(
     renameObjectProperty(*property);
   }
 
-  const WholeProjectBrowser wholeProjectExposer;
   DoRenameObject(project,
                  gd::PlatformExtension::GetObjectFullType(
                      eventsFunctionsExtension.GetName(), oldObjectName),
                  gd::PlatformExtension::GetObjectFullType(
                      eventsFunctionsExtension.GetName(), newObjectName),
-                 wholeProjectExposer);
+                 projectBrowser);
 }
 
 void WholeProjectRefactorer::DoRenameEventsFunction(

Core/GDCore/IDE/WholeProjectRefactorer.h

@@ -27,14 +27,7 @@ class ObjectsContainer;
 class VariablesContainer;
 class EventsBasedBehavior;
 class EventsBasedObject;
-class ArbitraryEventsWorker;
-class ArbitraryObjectsWorker;
-class ArbitraryEventsFunctionsWorker;
-class ArbitraryEventsWorkerWithContext;
-class ArbitraryEventBasedBehaviorsWorker;
-class ArbitraryBehaviorSharedDataWorker;
 class Behavior;
-class BehaviorMetadata;
 class UnfilledRequiredBehaviorPropertyProblem;
 class ProjectBrowser;
 class SerializerElement;
@@ -121,14 +114,24 @@ class GD_CORE_API WholeProjectRefactorer {
       const gd::String& newName);
 
   /**
-   * \brief Refactor behavior events after the extension was placed in a new
+   * \brief Refactor behavior events after the behavior has been placed in a new
    * extension.
    */
   static void UpdateExtensionNameInEventsBasedBehavior(
-      gd::Project& project,
-      const gd::EventsFunctionsExtension& eventsFunctionsExtension,
-      gd::EventsBasedBehavior& eventsBasedBehavior,
-      const gd::String& sourceExtensionName);
+      gd::Project &project,
+      const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+      gd::EventsBasedBehavior &eventsBasedBehavior,
+      const gd::String &sourceExtensionName);
+
+  /**
+   * \brief Refactor object events after the object has been placed in a new
+   * extension.
+   */
+  static void UpdateExtensionNameInEventsBasedObject(
+      gd::Project &project,
+      const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+      gd::EventsBasedObject &eventsBasedObject,
+      const gd::String &sourceExtensionName);
 
   /**
    * \brief Refactor the project **before** an events function is renamed.
@@ -324,6 +327,16 @@ class GD_CORE_API WholeProjectRefactorer {
       const gd::String& oldBehaviorName,
       const gd::String& newBehaviorName);
 
+  /**
+   * \brief Refactor events-based behavior events after the events-based
+   * behavior has been duplicated.
+   */
+  static void UpdateBehaviorNameInEventsBasedBehavior(
+      gd::Project &project,
+      const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+      gd::EventsBasedBehavior &eventsBasedBehavior,
+      const gd::String &sourceBehaviorName);
+
   /**
    * \brief Refactor the project **before** an object is renamed.
    *
@@ -337,6 +350,16 @@ class GD_CORE_API WholeProjectRefactorer {
       const gd::String& oldObjectName,
       const gd::String& newObjectName);
 
+  /**
+   * \brief Refactor events-based object events after the events-based object
+   * has been duplicated.
+   */
+  static void UpdateObjectNameInEventsBasedObject(
+      gd::Project &project,
+      const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+      gd::EventsBasedObject &eventsBasedObject,
+      const gd::String &sourceObjectName);
+
   /**
    * \brief Refactor the project after a layout is renamed.
    */
@@ -654,6 +677,35 @@ class GD_CORE_API WholeProjectRefactorer {
       const gd::String& newName,
       const gd::ProjectBrowser& projectBrowser);
 
+  /**
+   * \brief Refactor the project **before** a behavior is renamed.
+   *
+   * \warning Do the renaming of the specified behavior after calling this.
+   * This is because the behavior is expected to have its old name for the
+   * refactoring.
+   */
+  static void RenameEventsBasedBehavior(
+      gd::Project &project,
+      const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+      const gd::EventsBasedBehavior &eventsBasedBehavior,
+      const gd::String &oldBehaviorName,
+      const gd::String &newBehaviorName,
+      const gd::ProjectBrowser &projectBrowser);
+
+  /**
+   * \brief Refactor the project **before** an object is renamed.
+   *
+   * \warning Do the renaming of the specified object after calling this.
+   * This is because the object is expected to have its old name for the
+   * refactoring.
+   */
+  static void RenameEventsBasedObject(
+      gd::Project &project,
+      const gd::EventsFunctionsExtension &eventsFunctionsExtension,
+      const gd::EventsBasedObject &eventsBasedObject,
+      const gd::String &oldObjectName, const gd::String &newObjectName,
+      const gd::ProjectBrowser &projectBrowser);
+
   static void FindDependentBehaviorNames(
       const gd::Project& project,
       const gd::Object& object,

Core/GDCore/Project/BehaviorConfigurationContainer.h

@@ -8,8 +8,10 @@
 
 #include <map>
 #include <memory>
-#include "GDCore/Serialization/Serializer.h"
+
 #include "GDCore/Project/QuickCustomization.h"
+#include "GDCore/Project/QuickCustomizationVisibilitiesContainer.h"
+#include "GDCore/Serialization/Serializer.h"
 #include "GDCore/String.h"
 
 namespace gd {
@@ -32,12 +34,21 @@ namespace gd {
  */
 class GD_CORE_API BehaviorConfigurationContainer {
  public:
-  BehaviorConfigurationContainer() : folded(false), quickCustomizationVisibility(QuickCustomization::Visibility::Default){};
+  BehaviorConfigurationContainer()
+      : folded(false),
+        quickCustomizationVisibility(QuickCustomization::Visibility::Default),
+        propertiesQuickCustomizationVisibilities() {};
   BehaviorConfigurationContainer(const gd::String& name_,
                                  const gd::String& type_)
-      : name(name_), type(type_), folded(false), quickCustomizationVisibility(QuickCustomization::Visibility::Default){};
+      : name(name_),
+        type(type_),
+        folded(false),
+        quickCustomizationVisibility(QuickCustomization::Visibility::Default),
+        propertiesQuickCustomizationVisibilities() {};
   virtual ~BehaviorConfigurationContainer();
-  virtual BehaviorConfigurationContainer* Clone() const { return new BehaviorConfigurationContainer(*this); }
+  virtual BehaviorConfigurationContainer* Clone() const {
+    return new BehaviorConfigurationContainer(*this);
+  }
 
   /**
    * \brief Return the name identifying the behavior
@@ -68,7 +79,6 @@ class GD_CORE_API BehaviorConfigurationContainer {
    */
   std::map<gd::String, gd::PropertyDescriptor> GetProperties() const;
 
-
   /**
    * \brief Called when the IDE wants to update a custom property of the
    * behavior
@@ -84,9 +94,7 @@ class GD_CORE_API BehaviorConfigurationContainer {
    * \brief Called to initialize the content with the default properties
    * for the behavior.
    */
-  virtual void InitializeContent() {
-    InitializeContent(content);
-  };
+  virtual void InitializeContent() { InitializeContent(content); };
 
   /**
    * \brief Serialize the behavior content.
@@ -115,15 +123,42 @@ class GD_CORE_API BehaviorConfigurationContainer {
    */
   bool IsFolded() const { return folded; }
 
-  void SetQuickCustomizationVisibility(QuickCustomization::Visibility visibility) {
+  /**
+   * @brief Set if the whole behavior should be visible or not in the Quick
+   * Customization.
+   */
+  void SetQuickCustomizationVisibility(
+      QuickCustomization::Visibility visibility) {
     quickCustomizationVisibility = visibility;
   }
 
+  /**
+   * @brief Get if the whole behavior should be visible or not in the Quick
+   * Customization.
+   */
   QuickCustomization::Visibility GetQuickCustomizationVisibility() const {
     return quickCustomizationVisibility;
   }
 
-protected:
+  /**
+   * @brief Get the map of properties and their visibility in the Quick
+   * Customization.
+   */
+  QuickCustomizationVisibilitiesContainer&
+  GetPropertiesQuickCustomizationVisibilities() {
+    return propertiesQuickCustomizationVisibilities;
+  }
+
+  /**
+   * @brief Get the map of properties and their visibility in the Quick
+   * Customization.
+   */
+  const QuickCustomizationVisibilitiesContainer&
+  GetPropertiesQuickCustomizationVisibilities() const {
+    return propertiesQuickCustomizationVisibilities;
+  }
+
+ protected:
   /**
    * \brief Called when the IDE wants to know about the custom properties of the
    * behavior.
@@ -159,7 +194,7 @@ protected:
    * \brief Called to initialize the content with the default properties
    * for the behavior.
    */
-  virtual void InitializeContent(gd::SerializerElement& behaviorContent){};
+  virtual void InitializeContent(gd::SerializerElement& behaviorContent) {};
 
  private:
   gd::String name;  ///< Name of the behavior
@@ -169,6 +204,8 @@ protected:
   gd::SerializerElement content;  // Storage for the behavior properties
   bool folded;
   QuickCustomization::Visibility quickCustomizationVisibility;
+  QuickCustomizationVisibilitiesContainer
+      propertiesQuickCustomizationVisibilities;
 };
 
 }  // namespace gd

Core/GDCore/Project/CustomObjectConfiguration.cpp

@@ -72,7 +72,7 @@ gd::ObjectConfiguration &CustomObjectConfiguration::GetChildObjectConfiguration(
   }
 
   if (!eventsBasedObject->GetObjects().HasObjectNamed(objectName)) {
-    gd::LogError("Tried to get the configuration of a child-object:" + objectName
+    gd::LogError("Tried to get the configuration of a child-object: " + objectName
                 + " that doesn't exist in the event-based object: " + GetType());
     return badObjectConfiguration;
   }

Core/GDCore/Project/CustomObjectConfiguration.h

@@ -9,6 +9,7 @@
 
 #include <map>
 #include <memory>
+#include <unordered_set>
 #include "GDCore/Project/Object.h"
 #include "GDCore/Project/Project.h"
 #include "GDCore/Project/EventsBasedObject.h"
@@ -109,6 +110,27 @@ class CustomObjectConfiguration : public gd::ObjectConfiguration {
   static const gd::CustomObjectConfiguration::EdgeAnchor
   GetEdgeAnchorFromString(const gd::String &value);
 
+  /**
+   * Check if a child object properties must be displayed as folded in the editor.
+   * This is only useful when the object can override its children configuration (which
+   * is something being deprecated).
+   */
+  bool IsChildObjectFolded(const gd::String& childName) const {
+    return unfoldedChildren.find(childName) == unfoldedChildren.end();
+  }
+
+  /**
+   * Set if a child object properties must be displayed as folded in the editor.
+   * This is only useful when the object can override its children configuration (which
+   * is something being deprecated).
+   */
+  void SetChildObjectFolded(const gd::String& childName, bool folded) {
+    if (!folded)
+      unfoldedChildren.insert(childName);
+    else
+      unfoldedChildren.erase(childName);
+  }
+
 protected:
   void DoSerializeTo(SerializerElement& element) const override;
   void DoUnserializeFrom(Project& project, const SerializerElement& element) override;
@@ -118,11 +140,12 @@ protected:
 
   bool IsOverridingEventsBasedObjectChildrenConfiguration() const;
 
-  const Project* project; ///< The project is used to get the
-                          ///< EventBasedObject from the fullType.
+  const Project* project = nullptr; ///< The project is used to get the
+                                    ///< EventBasedObject from the fullType.
   gd::SerializerElement objectContent;
-  
-  bool isMarkedAsOverridingEventsBasedObjectChildrenConfiguration;
+  std::unordered_set<gd::String> unfoldedChildren;
+
+  bool isMarkedAsOverridingEventsBasedObjectChildrenConfiguration = false;
   mutable std::map<gd::String, std::unique_ptr<gd::ObjectConfiguration>> childObjectConfigurations;
 
   static gd::ObjectConfiguration badObjectConfiguration;

Core/GDCore/Project/Effect.cpp

@@ -12,6 +12,7 @@ namespace gd {
 void Effect::SerializeTo(SerializerElement& element) const {
   element.SetAttribute("name", GetName());
   element.SetAttribute("effectType", GetEffectType());
+  if (IsFolded()) element.SetBoolAttribute("folded", true);
 
   SerializerElement& doubleParametersElement =
       element.AddChild("doubleParameters");
@@ -41,6 +42,7 @@ void Effect::UnserializeFrom(const SerializerElement& element) {
       "effectName"
       // end of compatibility code
       ));
+  SetFolded(element.GetBoolAttribute("folded", false));
 
   doubleParameters.clear();
   const SerializerElement& doubleParametersElement =

Core/GDCore/Project/EventsFunctionsExtension.cpp

@@ -10,6 +10,7 @@
 #include "EventsFunction.h"
 #include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/Tools/MakeUnique.h"
+#include "GDCore/Extensions/PlatformExtension.h"
 
 namespace gd {
 
@@ -98,8 +99,11 @@ void EventsFunctionsExtension::SerializeTo(SerializerElement& element) const {
 
 void EventsFunctionsExtension::UnserializeFrom(
     gd::Project& project, const SerializerElement& element) {
-      UnserializeExtensionDeclarationFrom(project, element);
-      UnserializeExtensionImplementationFrom(project, element);
+  // Unserialize first the "declaration" (everything but objects content)
+  // so that objects can be then unserialized in proper order (they can depend
+  // on each others)
+  UnserializeExtensionDeclarationFrom(project, element);
+  UnserializeExtensionImplementationFrom(project, element);
 }
 
 void EventsFunctionsExtension::UnserializeExtensionDeclarationFrom(
@@ -185,11 +189,93 @@ void EventsFunctionsExtension::UnserializeExtensionImplementationFrom(
   eventsBasedBehaviors.UnserializeElementsFrom(
       "eventsBasedBehavior", project, element.GetChild("eventsBasedBehaviors"));
 
-  // It's important to load the objects without erasing them first as each object
-  // might reference other objects, and so need to know if a custom object exists
-  // in the project or not.
-  eventsBasedObjects.ProgressivelyUnserializeElementsFrom(
-      "eventsBasedObject", project, element.GetChild("eventsBasedObjects"));
+  auto &eventsBasedObjectsElement = element.GetChild("eventsBasedObjects");
+  eventsBasedObjectsElement.ConsiderAsArrayOf("eventsBasedObject");
+  for (gd::String &eventsBasedObjectName :
+       GetUnserializingOrderEventsBasedObjectNames(eventsBasedObjectsElement)) {
+    size_t extensionIndex = eventsBasedObjects.GetPosition(
+        eventsBasedObjects.Get(eventsBasedObjectName));
+    const SerializerElement &eventsBasedObjectElement =
+        eventsBasedObjectsElement.GetChild(extensionIndex);
+
+    eventsBasedObjects.at(extensionIndex)
+        .UnserializeFrom(project, eventsBasedObjectElement);
+  }
+}
+
+std::vector<gd::String>
+EventsFunctionsExtension::GetUnserializingOrderEventsBasedObjectNames(
+    const gd::SerializerElement &eventsBasedObjectsElement) {
+
+  // Child-objects need the event-based objects they use to be loaded completely
+  // before they are unserialized.
+
+  // At the beginning, everything is yet to be loaded.
+  std::vector<gd::String> remainingEventsBasedObjectNames(
+      eventsBasedObjects.size());
+  for (std::size_t i = 0; i < eventsBasedObjects.size(); ++i) {
+    remainingEventsBasedObjectNames[i] = eventsBasedObjects.at(i).GetName();
+  }
+
+  // Helper allowing to find if an object depends on at least one other object from
+  // the extension that is not loaded yet.
+  auto &extensionName = name;
+  auto isDependentFromRemainingEventsBasedObjects =
+      [&remainingEventsBasedObjectNames,
+       &extensionName](const gd::SerializerElement &eventsBasedObjectElement) {
+        auto &objectsElement = eventsBasedObjectElement.GetChild("objects");
+        objectsElement.ConsiderAsArrayOf("object");
+
+        for (std::size_t objectIndex = 0;
+             objectIndex < objectsElement.GetChildrenCount(); ++objectIndex) {
+          const gd::String &objectType =
+              objectsElement.GetChild(objectIndex).GetStringAttribute("type");
+
+          gd::String usedExtensionName =
+              PlatformExtension::GetExtensionFromFullObjectType(objectType);
+          if (usedExtensionName != extensionName) {
+            // The object comes from another extension: the project is already responsible
+            // for loading extensions in the proper order.
+            continue;
+          }
+          gd::String eventsBasedObjectName =
+              gd::PlatformExtension::GetObjectNameFromFullObjectType(
+                  objectType);
+
+          if (std::find(remainingEventsBasedObjectNames.begin(),
+                        remainingEventsBasedObjectNames.end(),
+                        eventsBasedObjectName) !=
+              remainingEventsBasedObjectNames.end()) {
+            return true;
+          }
+        }
+        return false;
+      };
+
+  // Find the order of loading so that the objects are loaded when all the objects
+  // they depend on are already loaded.
+  std::vector<gd::String> loadOrderEventsBasedObjectNames;
+  bool foundAnyEventsBasedObject = true;
+  while (foundAnyEventsBasedObject) {
+    foundAnyEventsBasedObject = false;
+    for (std::size_t i = 0; i < remainingEventsBasedObjectNames.size(); ++i) {
+      auto eventsBasedObjectName = remainingEventsBasedObjectNames[i];
+      size_t extensionIndex = eventsBasedObjects.GetPosition(
+          eventsBasedObjects.Get(eventsBasedObjectName));
+      const SerializerElement &eventsBasedObjectElement =
+          eventsBasedObjectsElement.GetChild(extensionIndex);
+
+      if (!isDependentFromRemainingEventsBasedObjects(
+              eventsBasedObjectElement)) {
+        loadOrderEventsBasedObjectNames.push_back(eventsBasedObjectName);
+        remainingEventsBasedObjectNames.erase(
+            remainingEventsBasedObjectNames.begin() + i);
+        i--;
+        foundAnyEventsBasedObject = true;
+      }
+    }
+  }
+  return loadOrderEventsBasedObjectNames;
 }
 
 bool EventsFunctionsExtension::IsExtensionLifecycleEventsFunction(

Core/GDCore/Project/EventsFunctionsExtension.h

@@ -314,6 +314,9 @@ class GD_CORE_API EventsFunctionsExtension : public EventsFunctionsContainer {
     return dependency;
   }
 
+  std::vector<gd::String> GetUnserializingOrderEventsBasedObjectNames(
+    const gd::SerializerElement &eventsBasedObjectsElement);
+
   gd::String version;
   gd::String extensionNamespace;
   gd::String shortDescription;

Core/GDCore/Project/ExternalEvents.cpp

@@ -7,7 +7,7 @@
 
 namespace gd {
 
-ExternalEvents::ExternalEvents() : lastChangeTimeStamp(0) {
+ExternalEvents::ExternalEvents() {
   // ctor
 }
 
@@ -24,14 +24,12 @@ ExternalEvents& ExternalEvents::operator=(const ExternalEvents& rhs) {
 void ExternalEvents::Init(const ExternalEvents& externalEvents) {
   name = externalEvents.GetName();
   associatedScene = externalEvents.GetAssociatedLayout();
-  lastChangeTimeStamp = externalEvents.GetLastChangeTimeStamp();
   events = externalEvents.events;
 }
 
 void ExternalEvents::SerializeTo(SerializerElement& element) const {
   element.SetAttribute("name", name);
   element.SetAttribute("associatedLayout", associatedScene);
-  element.SetAttribute("lastChangeTimeStamp", (int)lastChangeTimeStamp);
   gd::EventsListSerialization::SerializeEventsTo(events,
                                                  element.AddChild("events"));
 }
@@ -41,8 +39,6 @@ void ExternalEvents::UnserializeFrom(gd::Project& project,
   name = element.GetStringAttribute("name", "", "Name");
   associatedScene =
       element.GetStringAttribute("associatedLayout", "", "AssociatedScene");
-  lastChangeTimeStamp =
-      element.GetIntAttribute("lastChangeTimeStamp", 0, "LastChangeTimeStamp");
   gd::EventsListSerialization::UnserializeEventsFrom(
       project, events, element.GetChild("events", 0, "Events"));
 }

Core/GDCore/Project/ExternalEvents.h

@@ -67,24 +67,6 @@ class GD_CORE_API ExternalEvents {
     associatedScene = name_;
   };
 
-  /**
-   * Get the latest time of the build.
-   * Used when the IDE found that the external events can be compiled separately
-   * from scene's events.
-   *
-   * \todo This is specific to GD C++ Platform
-   */
-  time_t GetLastChangeTimeStamp() const { return lastChangeTimeStamp; };
-
-  /**
-   * Change the latest time of the build of the external events.
-   *
-   * \todo This is specific to GD C++ Platform
-   */
-  void SetLastChangeTimeStamp(time_t newTimeStamp) {
-    lastChangeTimeStamp = newTimeStamp;
-  };
-
   /**
    * \brief Get the events.
    */
@@ -109,7 +91,6 @@ class GD_CORE_API ExternalEvents {
  private:
   gd::String name;
   gd::String associatedScene;
-  time_t lastChangeTimeStamp;  ///< Time of the last build
   gd::EventsList events;       ///< List of events
 
   /**
@@ -119,19 +100,6 @@ class GD_CORE_API ExternalEvents {
   void Init(const ExternalEvents& externalEvents);
 };
 
-/**
- * \brief Functor testing ExternalEvents' name
- */
-struct ExternalEventsHasName
-    : public std::binary_function<std::unique_ptr<gd::ExternalEvents>,
-                                  gd::String,
-                                  bool> {
-  bool operator()(const std::unique_ptr<gd::ExternalEvents>& externalEvents,
-                  gd::String name) const {
-    return externalEvents->GetName() == name;
-  }
-};
-
 }  // namespace gd
 
 #endif  // GDCORE_EXTERNALEVENTS_H

Core/GDCore/Project/InitialInstancesContainer.cpp

@@ -163,6 +163,20 @@ bool InitialInstancesContainer::HasInstancesOfObject(
                      });
 }
 
+bool InitialInstancesContainer::IsInstancesCountOfObjectGreaterThan(
+    const gd::String &objectName, const std::size_t minInstanceCount) const {
+  std::size_t count = 0;
+  for (const gd::InitialInstance &instance : initialInstances) {
+    if (instance.GetObjectName() == objectName) {
+      count++;
+      if (count > minInstanceCount) {
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
 void InitialInstancesContainer::Create(
     const InitialInstancesContainer& source) {
   try {

Core/GDCore/Project/InitialInstancesContainer.h

@@ -153,6 +153,13 @@ class GD_CORE_API InitialInstancesContainer {
    */
   bool HasInstancesOfObject(const gd::String &objectName) const;
 
+  /**
+   * \brief Return true if there is at least N instances of the given object.
+   */
+  bool
+  IsInstancesCountOfObjectGreaterThan(const gd::String &objectName,
+                                      const std::size_t minInstanceCount) const;
+
   /**
    * \brief Remove all instances
    */

Core/GDCore/Project/Layout.cpp

@@ -24,10 +24,11 @@
 #include "GDCore/Project/ObjectGroup.h"
 #include "GDCore/Project/ObjectGroupsContainer.h"
 #include "GDCore/Project/Project.h"
+#include "GDCore/Project/QuickCustomization.h"
 #include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/String.h"
-#include "GDCore/Tools/PolymorphicClone.h"
 #include "GDCore/Tools/Log.h"
+#include "GDCore/Tools/PolymorphicClone.h"
 
 using namespace std;
 
@@ -43,7 +44,7 @@ Layout& Layout::operator=(const Layout& other) {
   return *this;
 }
 
-Layout::~Layout(){};
+Layout::~Layout() {};
 
 Layout::Layout()
     : backgroundColorR(209),
@@ -52,9 +53,7 @@ Layout::Layout()
       stopSoundsOnStartup(true),
       standardSortMethod(true),
       disableInputWhenNotFocused(true),
-      variables(gd::VariablesContainer::SourceType::Scene)
-{
-}
+      variables(gd::VariablesContainer::SourceType::Scene) {}
 
 void Layout::SetName(const gd::String& name_) {
   name = name_;
@@ -102,7 +101,9 @@ const gd::Layer& Layout::GetLayer(const gd::String& name) const {
   return layers.GetLayer(name);
 }
 
-gd::Layer& Layout::GetLayer(std::size_t index) { return layers.GetLayer(index); }
+gd::Layer& Layout::GetLayer(std::size_t index) {
+  return layers.GetLayer(index);
+}
 
 const gd::Layer& Layout::GetLayer(std::size_t index) const {
   return layers.GetLayer(index);
@@ -125,9 +126,7 @@ void Layout::InsertLayer(const gd::Layer& layer, std::size_t position) {
   layers.InsertLayer(layer, position);
 }
 
-void Layout::RemoveLayer(const gd::String& name) {
-  layers.RemoveLayer(name);
-}
+void Layout::RemoveLayer(const gd::String& name) { layers.RemoveLayer(name); }
 
 void Layout::SwapLayers(std::size_t firstLayerIndex,
                         std::size_t secondLayerIndex) {
@@ -153,7 +152,7 @@ void Layout::UpdateBehaviorsSharedData(gd::Project& project) {
       allBehaviorsNames.push_back(behavior.GetName());
     }
   }
-  auto &globalObjects = project.GetObjects();
+  auto& globalObjects = project.GetObjects();
   for (std::size_t i = 0; i < globalObjects.GetObjectsCount(); ++i) {
     std::vector<gd::String> objectBehaviors =
         globalObjects.GetObject(i).GetAllBehaviorNames();
@@ -173,7 +172,8 @@ void Layout::UpdateBehaviorsSharedData(gd::Project& project) {
 
     if (behaviorsSharedData.find(name) != behaviorsSharedData.end()) continue;
 
-    auto sharedData = CreateBehaviorsSharedData(project, name, allBehaviorsTypes[i]);
+    auto sharedData =
+        CreateBehaviorsSharedData(project, name, allBehaviorsTypes[i]);
     if (sharedData) {
       behaviorsSharedData[name] = std::move(sharedData);
     }
@@ -196,37 +196,39 @@ void Layout::UpdateBehaviorsSharedData(gd::Project& project) {
 }
 
 std::unique_ptr<gd::BehaviorsSharedData> Layout::CreateBehaviorsSharedData(
-        gd::Project& project, const gd::String& name, const gd::String& behaviorsType) {
-    if (project.HasEventsBasedBehavior(behaviorsType)) {
-      auto sharedData =
-          gd::make_unique<gd::CustomBehaviorsSharedData>(name, project, behaviorsType);
-      sharedData->InitializeContent();
-      return std::move(sharedData);
-    }
-    const gd::BehaviorMetadata& behaviorMetadata =
-        gd::MetadataProvider::GetBehaviorMetadata(
-            project.GetCurrentPlatform(),
-            behaviorsType);
-    if (gd::MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
-      gd::LogWarning("Tried to create a behavior shared data with an unknown type: " +
-                     behaviorsType + " on object " + GetName() + "!");
+    gd::Project& project,
+    const gd::String& name,
+    const gd::String& behaviorsType) {
+  if (project.HasEventsBasedBehavior(behaviorsType)) {
+    auto sharedData = gd::make_unique<gd::CustomBehaviorsSharedData>(
+        name, project, behaviorsType);
+    sharedData->InitializeContent();
+    return std::move(sharedData);
+  }
+  const gd::BehaviorMetadata& behaviorMetadata =
+      gd::MetadataProvider::GetBehaviorMetadata(project.GetCurrentPlatform(),
+                                                behaviorsType);
+  if (gd::MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
+    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 =
-        behaviorMetadata.GetSharedDataInstance();
-    if (!behaviorsSharedDataBluePrint) return nullptr;
-
-    auto sharedData = behaviorsSharedDataBluePrint->Clone();
-    sharedData->SetName(name);
-    sharedData->SetTypeName(behaviorsType);
+    auto sharedData = gd::make_unique<gd::CustomBehaviorsSharedData>(
+        name, project, behaviorsType);
     sharedData->InitializeContent();
-    return std::unique_ptr<gd::BehaviorsSharedData>(sharedData);
+    return std::move(sharedData);
+  }
+
+  gd::BehaviorsSharedData* behaviorsSharedDataBluePrint =
+      behaviorMetadata.GetSharedDataInstance();
+  if (!behaviorsSharedDataBluePrint) return nullptr;
+
+  auto sharedData = behaviorsSharedDataBluePrint->Clone();
+  sharedData->SetName(name);
+  sharedData->SetTypeName(behaviorsType);
+  sharedData->InitializeContent();
+  return std::unique_ptr<gd::BehaviorsSharedData>(sharedData);
 }
 
 void Layout::SerializeTo(SerializerElement& element) const {
@@ -243,11 +245,13 @@ void Layout::SerializeTo(SerializerElement& element) const {
 
   editorSettings.SerializeTo(element.AddChild("uiSettings"));
 
-  objectsContainer.GetObjectGroups().SerializeTo(element.AddChild("objectsGroups"));
+  objectsContainer.GetObjectGroups().SerializeTo(
+      element.AddChild("objectsGroups"));
   GetVariables().SerializeTo(element.AddChild("variables"));
   GetInitialInstances().SerializeTo(element.AddChild("instances"));
   objectsContainer.SerializeObjectsTo(element.AddChild("objects"));
-  objectsContainer.SerializeFoldersTo(element.AddChild("objectsFolderStructure"));
+  objectsContainer.SerializeFoldersTo(
+      element.AddChild("objectsFolderStructure"));
   gd::EventsListSerialization::SerializeEventsTo(events,
                                                  element.AddChild("events"));
 
@@ -257,15 +261,33 @@ void Layout::SerializeTo(SerializerElement& element) const {
       element.AddChild("behaviorsSharedData");
   behaviorDatasElement.ConsiderAsArrayOf("behaviorSharedData");
   for (const auto& it : behaviorsSharedData) {
+    const gd::BehaviorsSharedData& sharedData = *it.second;
     SerializerElement& dataElement =
         behaviorDatasElement.AddChild("behaviorSharedData");
 
-    it.second->SerializeTo(dataElement);
+    sharedData.SerializeTo(dataElement);
     dataElement.RemoveChild("type");  // The content can contain type or name
                                       // properties, remove them.
     dataElement.RemoveChild("name");
-    dataElement.SetAttribute("type", it.second->GetTypeName());
-    dataElement.SetAttribute("name", it.second->GetName());
+    dataElement.SetAttribute("type", sharedData.GetTypeName());
+    dataElement.SetAttribute("name", sharedData.GetName());
+
+    // Handle Quick Customization info.
+    dataElement.RemoveChild("propertiesQuickCustomizationVisibilities");
+    const QuickCustomizationVisibilitiesContainer&
+        propertiesQuickCustomizationVisibilities =
+            sharedData.GetPropertiesQuickCustomizationVisibilities();
+    if (!propertiesQuickCustomizationVisibilities.IsEmpty()) {
+      propertiesQuickCustomizationVisibilities.SerializeTo(
+          dataElement.AddChild("propertiesQuickCustomizationVisibilities"));
+    }
+    const QuickCustomization::Visibility visibility =
+        sharedData.GetQuickCustomizationVisibility();
+    if (visibility != QuickCustomization::Visibility::Default) {
+      dataElement.SetAttribute(
+          "quickCustomizationVisibility",
+          QuickCustomization::VisibilityAsString(visibility));
+    }
   }
 }
 
@@ -289,9 +311,11 @@ void Layout::UnserializeFrom(gd::Project& project,
   gd::EventsListSerialization::UnserializeEventsFrom(
       project, GetEvents(), element.GetChild("events", 0, "Events"));
 
-  objectsContainer.UnserializeObjectsFrom(project, element.GetChild("objects", 0, "Objets"));
+  objectsContainer.UnserializeObjectsFrom(
+      project, element.GetChild("objects", 0, "Objets"));
   if (element.HasChild("objectsFolderStructure")) {
-    objectsContainer.UnserializeFoldersFrom(project, element.GetChild("objectsFolderStructure", 0));
+    objectsContainer.UnserializeFoldersFrom(
+        project, element.GetChild("objectsFolderStructure", 0));
   }
   objectsContainer.AddMissingObjectsInRootFolder();
 
@@ -321,7 +345,6 @@ void Layout::UnserializeFrom(gd::Project& project,
                             "Behavior");  // Compatibility with GD <= 4
     gd::String name = sharedDataElement.GetStringAttribute("name", "", "Name");
 
-
     auto sharedData = CreateBehaviorsSharedData(project, name, type);
     if (sharedData) {
       // Compatibility with GD <= 4.0.98
@@ -336,6 +359,21 @@ void Layout::UnserializeFrom(gd::Project& project,
       else {
         sharedData->UnserializeFrom(sharedDataElement);
       }
+
+      // Handle Quick Customization info.
+      if (sharedDataElement.HasChild(
+              "propertiesQuickCustomizationVisibilities")) {
+        sharedData->GetPropertiesQuickCustomizationVisibilities()
+            .UnserializeFrom(sharedDataElement.GetChild(
+                "propertiesQuickCustomizationVisibilities"));
+      }
+      if (sharedDataElement.HasChild("quickCustomizationVisibility")) {
+        sharedData->SetQuickCustomizationVisibility(
+            QuickCustomization::StringAsVisibility(
+                sharedDataElement.GetStringAttribute(
+                    "quickCustomizationVisibility")));
+      }
+
       behaviorsSharedData[name] = std::move(sharedData);
     }
   }
@@ -390,8 +428,9 @@ gd::String GD_CORE_API GetTypeOfObject(const gd::ObjectsContainer& project,
     type = project.GetObject(name).GetType();
 
   // Search in groups.
-  // Currently, a group is considered as the "intersection" of all of its objects.
-  // Search "groups is the intersection of its objects" in the codebase.
+  // Currently, a group is considered as the "intersection" of all of its
+  // objects. Search "groups is the intersection of its objects" in the
+  // codebase.
   else if (searchInGroups) {
     for (std::size_t i = 0; i < layout.GetObjectGroups().size(); ++i) {
       if (layout.GetObjectGroups()[i].GetName() == name) {
@@ -448,11 +487,12 @@ gd::String GD_CORE_API GetTypeOfObject(const gd::ObjectsContainer& project,
   return type;
 }
 
-void GD_CORE_API FilterBehaviorNamesFromObject(
-    const gd::Object &object, const gd::String &behaviorType,
-    std::vector<gd::String> &behaviorNames) {
+void GD_CORE_API
+FilterBehaviorNamesFromObject(const gd::Object& object,
+                              const gd::String& behaviorType,
+                              std::vector<gd::String>& behaviorNames) {
   for (size_t i = 0; i < behaviorNames.size();) {
-    auto &behaviorName = behaviorNames[i];
+    auto& behaviorName = behaviorNames[i];
     if (!object.HasBehaviorNamed(behaviorName) ||
         object.GetBehavior(behaviorName).GetTypeName() != behaviorType) {
       behaviorNames.erase(behaviorNames.begin() + i);
@@ -462,19 +502,21 @@ void GD_CORE_API FilterBehaviorNamesFromObject(
   }
 }
 
-std::vector<gd::String> GD_CORE_API GetBehaviorNamesInObjectOrGroup(
-    const gd::ObjectsContainer &project, const gd::ObjectsContainer &layout,
-    const gd::String &objectOrGroupName, const gd::String &behaviorType,
-    bool searchInGroups) {
+std::vector<gd::String> GD_CORE_API
+GetBehaviorNamesInObjectOrGroup(const gd::ObjectsContainer& project,
+                                const gd::ObjectsContainer& layout,
+                                const gd::String& objectOrGroupName,
+                                const gd::String& behaviorType,
+                                bool searchInGroups) {
   // Search in objects.
   if (layout.HasObjectNamed(objectOrGroupName)) {
-    auto &object = layout.GetObject(objectOrGroupName);
+    auto& object = layout.GetObject(objectOrGroupName);
     auto behaviorNames = object.GetAllBehaviorNames();
     FilterBehaviorNamesFromObject(object, behaviorType, behaviorNames);
     return behaviorNames;
   }
   if (project.HasObjectNamed(objectOrGroupName)) {
-    auto &object = project.GetObject(objectOrGroupName);
+    auto& object = project.GetObject(objectOrGroupName);
     auto behaviorNames = object.GetAllBehaviorNames();
     FilterBehaviorNamesFromObject(object, behaviorType, behaviorNames);
     return behaviorNames;
@@ -486,9 +528,10 @@ std::vector<gd::String> GD_CORE_API GetBehaviorNamesInObjectOrGroup(
   }
 
   // Search in groups.
-  // Currently, a group is considered as the "intersection" of all of its objects.
-  // Search "groups is the intersection of its objects" in the codebase.
-  const gd::ObjectsContainer *container;
+  // Currently, a group is considered as the "intersection" of all of its
+  // objects. Search "groups is the intersection of its objects" in the
+  // codebase.
+  const gd::ObjectsContainer* container;
   if (layout.GetObjectGroups().Has(objectOrGroupName)) {
     container = &layout;
   } else if (project.GetObjectGroups().Has(objectOrGroupName)) {
@@ -497,7 +540,7 @@ std::vector<gd::String> GD_CORE_API GetBehaviorNamesInObjectOrGroup(
     std::vector<gd::String> behaviorNames;
     return behaviorNames;
   }
-  const vector<gd::String> &groupsObjects =
+  const vector<gd::String>& groupsObjects =
       container->GetObjectGroups().Get(objectOrGroupName).GetAllObjectsNames();
 
   // Empty groups don't contain any behavior.
@@ -510,15 +553,15 @@ std::vector<gd::String> GD_CORE_API GetBehaviorNamesInObjectOrGroup(
   auto behaviorNames = GetBehaviorNamesInObjectOrGroup(
       project, layout, groupsObjects[0], behaviorType, false);
   for (size_t i = 1; i < groupsObjects.size(); i++) {
-    auto &objectName = groupsObjects[i];
+    auto& objectName = groupsObjects[i];
 
     if (layout.HasObjectNamed(objectName)) {
-      auto &object = layout.GetObject(objectName);
+      auto& object = layout.GetObject(objectName);
       FilterBehaviorNamesFromObject(object, behaviorType, behaviorNames);
       return behaviorNames;
     }
     if (project.HasObjectNamed(objectName)) {
-      auto &object = project.GetObject(objectName);
+      auto& object = project.GetObject(objectName);
       FilterBehaviorNamesFromObject(object, behaviorType, behaviorNames);
       return behaviorNames;
     }
@@ -529,10 +572,10 @@ std::vector<gd::String> GD_CORE_API GetBehaviorNamesInObjectOrGroup(
   return behaviorNames;
 }
 
-bool GD_CORE_API HasBehaviorInObjectOrGroup(const gd::ObjectsContainer &project,
-                                            const gd::ObjectsContainer &layout,
-                                            const gd::String &objectOrGroupName,
-                                            const gd::String &behaviorName,
+bool GD_CORE_API HasBehaviorInObjectOrGroup(const gd::ObjectsContainer& project,
+                                            const gd::ObjectsContainer& layout,
+                                            const gd::String& objectOrGroupName,
+                                            const gd::String& behaviorName,
                                             bool searchInGroups) {
   // Search in objects.
   if (layout.HasObjectNamed(objectOrGroupName)) {
@@ -547,9 +590,10 @@ bool GD_CORE_API HasBehaviorInObjectOrGroup(const gd::ObjectsContainer &project,
   }
 
   // Search in groups.
-  // Currently, a group is considered as the "intersection" of all of its objects.
-  // Search "groups is the intersection of its objects" in the codebase.
-  const gd::ObjectsContainer *container;
+  // Currently, a group is considered as the "intersection" of all of its
+  // objects. Search "groups is the intersection of its objects" in the
+  // codebase.
+  const gd::ObjectsContainer* container;
   if (layout.GetObjectGroups().Has(objectOrGroupName)) {
     container = &layout;
   } else if (project.GetObjectGroups().Has(objectOrGroupName)) {
@@ -557,7 +601,7 @@ bool GD_CORE_API HasBehaviorInObjectOrGroup(const gd::ObjectsContainer &project,
   } else {
     return false;
   }
-  const vector<gd::String> &groupsObjects =
+  const vector<gd::String>& groupsObjects =
       container->GetObjectGroups().Get(objectOrGroupName).GetAllObjectsNames();
 
   // Empty groups don't contain any behavior.
@@ -566,9 +610,9 @@ bool GD_CORE_API HasBehaviorInObjectOrGroup(const gd::ObjectsContainer &project,
   }
 
   // Check that all objects have the behavior.
-  for (auto &&object : groupsObjects) {
-    if (!HasBehaviorInObjectOrGroup(project, layout, object, behaviorName,
-                                    false)) {
+  for (auto&& object : groupsObjects) {
+    if (!HasBehaviorInObjectOrGroup(
+            project, layout, object, behaviorName, false)) {
       return false;
     }
   }
@@ -576,18 +620,18 @@ bool GD_CORE_API HasBehaviorInObjectOrGroup(const gd::ObjectsContainer &project,
 }
 
 bool GD_CORE_API IsDefaultBehavior(const gd::ObjectsContainer& project,
-                                         const gd::ObjectsContainer& layout,
-                                         gd::String objectOrGroupName,
-                                         gd::String behaviorName,
-                                         bool searchInGroups) {
+                                   const gd::ObjectsContainer& layout,
+                                   gd::String objectOrGroupName,
+                                   gd::String behaviorName,
+                                   bool searchInGroups) {
   // Search in objects.
   if (layout.HasObjectNamed(objectOrGroupName)) {
-    auto &object = layout.GetObject(objectOrGroupName);
+    auto& object = layout.GetObject(objectOrGroupName);
     return object.HasBehaviorNamed(behaviorName) &&
            object.GetBehavior(behaviorName).IsDefaultBehavior();
   }
   if (project.HasObjectNamed(objectOrGroupName)) {
-    auto &object = project.GetObject(objectOrGroupName);
+    auto& object = project.GetObject(objectOrGroupName);
     return object.HasBehaviorNamed(behaviorName) &&
            object.GetBehavior(behaviorName).IsDefaultBehavior();
   }
@@ -597,9 +641,10 @@ bool GD_CORE_API IsDefaultBehavior(const gd::ObjectsContainer& project,
   }
 
   // Search in groups.
-  // Currently, a group is considered as the "intersection" of all of its objects.
-  // Search "groups is the intersection of its objects" in the codebase.
-  const gd::ObjectsContainer *container;
+  // Currently, a group is considered as the "intersection" of all of its
+  // objects. Search "groups is the intersection of its objects" in the
+  // codebase.
+  const gd::ObjectsContainer* container;
   if (layout.GetObjectGroups().Has(objectOrGroupName)) {
     container = &layout;
   } else if (project.GetObjectGroups().Has(objectOrGroupName)) {
@@ -607,7 +652,7 @@ bool GD_CORE_API IsDefaultBehavior(const gd::ObjectsContainer& project,
   } else {
     return false;
   }
-  const vector<gd::String> &groupsObjects =
+  const vector<gd::String>& groupsObjects =
       container->GetObjectGroups().Get(objectOrGroupName).GetAllObjectsNames();
 
   // Empty groups don't contain any behavior.
@@ -616,30 +661,32 @@ bool GD_CORE_API IsDefaultBehavior(const gd::ObjectsContainer& project,
   }
 
   // Check that all objects have the same type.
-  for (auto &&object : groupsObjects) {
-    if (!IsDefaultBehavior(project, layout, object, behaviorName,
-                                    false)) {
+  for (auto&& object : groupsObjects) {
+    if (!IsDefaultBehavior(project, layout, object, behaviorName, false)) {
       return false;
     }
   }
   return true;
 }
 
-gd::String GD_CORE_API GetTypeOfBehaviorInObjectOrGroup(const gd::ObjectsContainer& project,
-                                         const gd::ObjectsContainer& layout,
-                                         const gd::String& objectOrGroupName,
-                                         const gd::String& behaviorName,
-                                         bool searchInGroups) {
+gd::String GD_CORE_API
+GetTypeOfBehaviorInObjectOrGroup(const gd::ObjectsContainer& project,
+                                 const gd::ObjectsContainer& layout,
+                                 const gd::String& objectOrGroupName,
+                                 const gd::String& behaviorName,
+                                 bool searchInGroups) {
   // Search in objects.
   if (layout.HasObjectNamed(objectOrGroupName)) {
-    auto &object = layout.GetObject(objectOrGroupName);
-    return object.HasBehaviorNamed(behaviorName) ?
-           object.GetBehavior(behaviorName).GetTypeName() : "";
+    auto& object = layout.GetObject(objectOrGroupName);
+    return object.HasBehaviorNamed(behaviorName)
+               ? object.GetBehavior(behaviorName).GetTypeName()
+               : "";
   }
   if (project.HasObjectNamed(objectOrGroupName)) {
-    auto &object = project.GetObject(objectOrGroupName);
-    return object.HasBehaviorNamed(behaviorName) ?
-           object.GetBehavior(behaviorName).GetTypeName() : "";
+    auto& object = project.GetObject(objectOrGroupName);
+    return object.HasBehaviorNamed(behaviorName)
+               ? object.GetBehavior(behaviorName).GetTypeName()
+               : "";
   }
 
   if (!searchInGroups) {
@@ -647,9 +694,10 @@ gd::String GD_CORE_API GetTypeOfBehaviorInObjectOrGroup(const gd::ObjectsContain
   }
 
   // Search in groups.
-  // Currently, a group is considered as the "intersection" of all of its objects.
-  // Search "groups is the intersection of its objects" in the codebase.
-  const gd::ObjectsContainer *container;
+  // Currently, a group is considered as the "intersection" of all of its
+  // objects. Search "groups is the intersection of its objects" in the
+  // codebase.
+  const gd::ObjectsContainer* container;
   if (layout.GetObjectGroups().Has(objectOrGroupName)) {
     container = &layout;
   } else if (project.GetObjectGroups().Has(objectOrGroupName)) {
@@ -657,7 +705,7 @@ gd::String GD_CORE_API GetTypeOfBehaviorInObjectOrGroup(const gd::ObjectsContain
   } else {
     return "";
   }
-  const vector<gd::String> &groupsObjects =
+  const vector<gd::String>& groupsObjects =
       container->GetObjectGroups().Get(objectOrGroupName).GetAllObjectsNames();
 
   // Empty groups don't contain any behavior.
@@ -668,9 +716,9 @@ gd::String GD_CORE_API GetTypeOfBehaviorInObjectOrGroup(const gd::ObjectsContain
   // Check that all objects have the behavior with the same type.
   auto behaviorType = GetTypeOfBehaviorInObjectOrGroup(
       project, layout, groupsObjects[0], behaviorName, false);
-  for (auto &&object : groupsObjects) {
-    if (GetTypeOfBehaviorInObjectOrGroup(project, layout, object, behaviorName,
-                                    false) != behaviorType) {
+  for (auto&& object : groupsObjects) {
+    if (GetTypeOfBehaviorInObjectOrGroup(
+            project, layout, object, behaviorName, false) != behaviorType) {
       return "";
     }
   }
@@ -682,14 +730,14 @@ gd::String GD_CORE_API GetTypeOfBehavior(const gd::ObjectsContainer& project,
                                          gd::String name,
                                          bool searchInGroups) {
   for (std::size_t i = 0; i < layout.GetObjectsCount(); ++i) {
-    const auto &object = layout.GetObject(i);
+    const auto& object = layout.GetObject(i);
     if (object.HasBehaviorNamed(name)) {
       return object.GetBehavior(name).GetTypeName();
     }
   }
 
   for (std::size_t i = 0; i < project.GetObjectsCount(); ++i) {
-    const auto &object = project.GetObject(i);
+    const auto& object = project.GetObject(i);
     if (object.HasBehaviorNamed(name)) {
       return object.GetBehavior(name).GetTypeName();
     }
@@ -726,8 +774,9 @@ GetBehaviorsOfObject(const gd::ObjectsContainer& project,
   }
 
   // Search in groups
-  // Currently, a group is considered as the "intersection" of all of its objects.
-  // Search "groups is the intersection of its objects" in the codebase.
+  // Currently, a group is considered as the "intersection" of all of its
+  // objects. Search "groups is the intersection of its objects" in the
+  // codebase.
   if (searchInGroups) {
     for (std::size_t i = 0; i < layout.GetObjectGroups().size(); ++i) {
       if (layout.GetObjectGroups()[i].GetName() == name) {

Core/GDCore/Project/Layout.h

@@ -369,9 +369,9 @@ class GD_CORE_API Layout {
  private:
   gd::String name;         ///< Scene name
   gd::String mangledName;  ///< The scene name mangled by SceneNameMangler
-  unsigned int backgroundColorR;     ///< Background color Red component
-  unsigned int backgroundColorG;     ///< Background color Green component
-  unsigned int backgroundColorB;     ///< Background color Blue component
+  unsigned int backgroundColorR = 0;     ///< Background color Red component
+  unsigned int backgroundColorG = 0;     ///< Background color Green component
+  unsigned int backgroundColorB = 0;     ///< Background color Blue component
   gd::String title;                  ///< Title displayed in the window
   gd::VariablesContainer variables;  ///< Variables list
   gd::ObjectsContainer objectsContainer;
@@ -379,12 +379,12 @@ class GD_CORE_API Layout {
   gd::LayersContainer layers;
   std::map<gd::String, std::unique_ptr<gd::BehaviorsSharedData>>
       behaviorsSharedData;   ///< Initial shared datas of behaviors
-  bool stopSoundsOnStartup;  ///< True to make the scene stop all sounds at
-                             ///< startup.
-  bool standardSortMethod;   ///< True to sort objects using standard sort.
-  bool disableInputWhenNotFocused;  /// If set to true, the input must be
-                                    /// disabled when the window do not have the
-                                    /// focus.
+  bool stopSoundsOnStartup = true;  ///< True to make the scene stop all sounds at
+                                    ///< startup.
+  bool standardSortMethod = true;   ///< True to sort objects using standard sort.
+  bool disableInputWhenNotFocused = true;  /// If set to true, the input must be
+                                           /// disabled when the window do not have the
+                                           /// focus.
   static gd::BehaviorsSharedData
       badBehaviorSharedData;  ///< Null object, returned when
                               ///< GetBehaviorSharedData can not find the

Core/GDCore/Project/Object.cpp

@@ -12,8 +12,9 @@
 #include "GDCore/Project/CustomBehavior.h"
 #include "GDCore/Project/Layout.h"
 #include "GDCore/Project/Project.h"
-#include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/Project/PropertyDescriptor.h"
+#include "GDCore/Project/QuickCustomization.h"
+#include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/Tools/Log.h"
 #include "GDCore/Tools/UUID/UUID.h"
 
@@ -27,8 +28,8 @@ Object::Object(const gd::String& name_,
     : name(name_),
       configuration(std::move(configuration_)),
       objectVariables(gd::VariablesContainer::SourceType::Object) {
-      SetType(type_);
-    }
+  SetType(type_);
+}
 
 Object::Object(const gd::String& name_,
                const gd::String& type_,
@@ -36,8 +37,8 @@ Object::Object(const gd::String& name_,
     : name(name_),
       configuration(configuration_),
       objectVariables(gd::VariablesContainer::SourceType::Object) {
-      SetType(type_);
-    }
+  SetType(type_);
+}
 
 void Object::Init(const gd::Object& object) {
   persistentUuid = object.persistentUuid;
@@ -54,9 +55,7 @@ void Object::Init(const gd::Object& object) {
   configuration = object.configuration->Clone();
 }
 
-gd::ObjectConfiguration& Object::GetConfiguration() {
-  return *configuration;
-}
+gd::ObjectConfiguration& Object::GetConfiguration() { return *configuration; }
 
 const gd::ObjectConfiguration& Object::GetConfiguration() const {
   return *configuration;
@@ -77,8 +76,7 @@ bool Object::RenameBehavior(const gd::String& name, const gd::String& newName) {
       behaviors.find(newName) != behaviors.end())
     return false;
 
-  std::unique_ptr<Behavior> aut =
-      std::move(behaviors.find(name)->second);
+  std::unique_ptr<Behavior> aut = std::move(behaviors.find(name)->second);
   behaviors.erase(name);
   behaviors[newName] = std::move(aut);
   behaviors[newName]->SetName(newName);
@@ -99,10 +97,10 @@ bool Object::HasBehaviorNamed(const gd::String& name) const {
 }
 
 gd::Behavior* Object::AddNewBehavior(const gd::Project& project,
-                                            const gd::String& type,
-                                            const gd::String& name) {
-  auto initializeAndAdd =
-      [this, &name](std::unique_ptr<gd::Behavior> behavior) {
+                                     const gd::String& type,
+                                     const gd::String& name) {
+  auto initializeAndAdd = [this,
+                           &name](std::unique_ptr<gd::Behavior> behavior) {
     behavior->InitializeContent();
     this->behaviors[name] = std::move(behavior);
     return this->behaviors[name].get();
@@ -111,18 +109,17 @@ gd::Behavior* Object::AddNewBehavior(const gd::Project& project,
   if (project.HasEventsBasedBehavior(type)) {
     return initializeAndAdd(
         gd::make_unique<CustomBehavior>(name, project, type));
-  }
-  else {
+  } else {
     const gd::BehaviorMetadata& behaviorMetadata =
         gd::MetadataProvider::GetBehaviorMetadata(project.GetCurrentPlatform(),
                                                   type);
     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 behavior that was removed.
-    // Create a custom behavior to preserve the properties values.
-    return initializeAndAdd(
-        gd::make_unique<CustomBehavior>(name, project, type));
+      gd::LogWarning("Tried to create a behavior with an unknown type: " +
+                     type + " on object " + GetName() + "!");
+      // 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));
     }
     std::unique_ptr<gd::Behavior> behavior(behaviorMetadata.Get().Clone());
     behavior->SetName(name);
@@ -196,6 +193,23 @@ void Object::UnserializeFrom(gd::Project& project,
       else {
         behavior->UnserializeFrom(behaviorElement);
       }
+
+      bool isFolded = behaviorElement.GetBoolAttribute("isFolded", false);
+      behavior->SetFolded(isFolded);
+
+      // Handle Quick Customization info.
+      if (behaviorElement.HasChild(
+              "propertiesQuickCustomizationVisibilities")) {
+        behavior->GetPropertiesQuickCustomizationVisibilities().UnserializeFrom(
+            behaviorElement.GetChild(
+                "propertiesQuickCustomizationVisibilities"));
+      }
+      if (behaviorElement.HasChild("quickCustomizationVisibility")) {
+        behavior->SetQuickCustomizationVisibility(
+            QuickCustomization::StringAsVisibility(
+                behaviorElement.GetStringAttribute(
+                    "quickCustomizationVisibility")));
+      }
     }
   }
 
@@ -217,8 +231,8 @@ void Object::SerializeTo(SerializerElement& element) const {
   std::vector<gd::String> allBehaviors = GetAllBehaviorNames();
   for (std::size_t i = 0; i < allBehaviors.size(); ++i) {
     const gd::Behavior& behavior = GetBehavior(allBehaviors[i]);
-    // Default behaviors are added at the object creation according to metadata.
-    // They don't need to be serialized.
+    // Default behaviors are added at the object creation according to
+    // metadata. They don't need to be serialized.
     if (behavior.IsDefaultBehavior()) {
       continue;
     }
@@ -228,8 +242,27 @@ void Object::SerializeTo(SerializerElement& element) const {
     behaviorElement.RemoveChild("type");  // The content can contain type or
                                           // name properties, remove them.
     behaviorElement.RemoveChild("name");
+    behaviorElement.RemoveChild("isFolded");
     behaviorElement.SetAttribute("type", behavior.GetTypeName());
     behaviorElement.SetAttribute("name", behavior.GetName());
+    if (behavior.IsFolded()) behaviorElement.SetAttribute("isFolded", true);
+
+    // Handle Quick Customization info.
+    behaviorElement.RemoveChild("propertiesQuickCustomizationVisibilities");
+    const QuickCustomizationVisibilitiesContainer&
+        propertiesQuickCustomizationVisibilities =
+            behavior.GetPropertiesQuickCustomizationVisibilities();
+    if (!propertiesQuickCustomizationVisibilities.IsEmpty()) {
+      propertiesQuickCustomizationVisibilities.SerializeTo(
+          behaviorElement.AddChild("propertiesQuickCustomizationVisibilities"));
+    }
+    const QuickCustomization::Visibility visibility =
+        behavior.GetQuickCustomizationVisibility();
+    if (visibility != QuickCustomization::Visibility::Default) {
+      behaviorElement.SetAttribute(
+          "quickCustomizationVisibility",
+          QuickCustomization::VisibilityAsString(visibility));
+    }
   }
 
   configuration->SerializeTo(element);

Core/GDCore/Project/ObjectFolderOrObject.h

@@ -193,7 +193,7 @@ class GD_CORE_API ObjectFolderOrObject {
   static gd::ObjectFolderOrObject badObjectFolderOrObject;
 
   gd::ObjectFolderOrObject*
-      parent;  // nullptr if root folder, points to the parent folder otherwise.
+      parent = nullptr;  // nullptr if root folder, points to the parent folder otherwise.
   QuickCustomization::Visibility quickCustomizationVisibility;
 
   // Representing an object:

Core/GDCore/Project/ObjectsContainersList.cpp

@@ -530,6 +530,32 @@ std::vector<gd::String> ObjectsContainersList::GetBehaviorsOfObject(
       *objectsContainers[0], *objectsContainers[1], objectName, searchInGroups);
 }
 
+std::vector<gd::String> ObjectsContainersList::GetBehaviorNamesInObjectOrGroup(
+    const gd::String &objectOrGroupName, const gd::String &behaviorType, bool searchInGroups) const {
+  if (objectsContainers.size() > 2) {
+    // TODO: rework forwarded methods so they can work with any number of
+    // containers.
+    gd::LogFatalError(
+        "ObjectsContainersList::GetBehaviorNamesInObjectOrGroup called with objectsContainers "
+        "not being exactly 2. This is a logical error and will crash.");
+  }
+  if (objectsContainers.size() == 0) {
+    gd::LogWarning("ObjectsContainersList::GetBehaviorNamesInObjectOrGroup called without any "
+                   "objectsContainer");
+    std::vector<gd::String> behaviors;
+    return behaviors;
+  }
+  if (objectsContainers.size() == 1) {
+    gd::ObjectsContainer emptyObjectsContainer;
+    return gd::GetBehaviorNamesInObjectOrGroup(emptyObjectsContainer,
+                                    *objectsContainers[0], objectOrGroupName, behaviorType,
+                                    searchInGroups);
+  }
+  return gd::GetBehaviorNamesInObjectOrGroup(
+      *objectsContainers[0], *objectsContainers[1], objectOrGroupName, behaviorType, searchInGroups);
+}
+
+
 std::vector<gd::String> ObjectsContainersList::GetAnimationNamesOfObject(
     const gd::String &objectOrGroupName) const {
   std::vector<gd::String> animationNames;

Core/GDCore/Project/ObjectsContainersList.h

@@ -50,6 +50,11 @@ class GD_CORE_API ObjectsContainersList {
    */
   bool HasObjectOrGroupNamed(const gd::String& name) const;
 
+  /**
+   * \brief Check if the specified object exists ignoring groups.
+   */
+  bool HasObjectNamed(const gd::String& name) const;
+
   enum VariableExistence {
     DoesNotExist,
     Exists,
@@ -128,6 +133,18 @@ class GD_CORE_API ObjectsContainersList {
   std::vector<gd::String> GetBehaviorsOfObject(
       const gd::String& objectName, bool searchInGroups = true) const;
 
+  /**
+   * \brief Get behaviors of an object/group of a given behavior type.
+   * \note The behaviors of a group are the behaviors which are found in common
+   * when looking all the objects of the group.
+   *
+   * @return Vector containing names of behaviors
+   */
+  std::vector<gd::String>
+  GetBehaviorNamesInObjectOrGroup(const gd::String &objectOrGroupName,
+                       const gd::String &behaviorType,
+                       bool searchInGroups = true) const;
+
   /**
    * \brief Get the animation names of an object/group.
    * \note The animation names of a group are the animation names common to
@@ -188,8 +205,6 @@ class GD_CORE_API ObjectsContainersList {
   ObjectsContainersList(){};
 
  private:
-  bool HasObjectNamed(const gd::String& name) const;
-
   const gd::Object* GetObject(const gd::String& name) const;
 
   bool HasObjectWithVariableNamed(const gd::String& objectName,

Core/GDCore/Project/Project.cpp

@@ -71,7 +71,7 @@ Project::Project()
       isPlayableWithKeyboard(false),
       isPlayableWithGamepad(false),
       isPlayableWithMobile(false),
-      currentPlatform(NULL),
+      currentPlatform(nullptr),
       gdMajorVersion(gd::VersionWrapper::Major()),
       gdMinorVersion(gd::VersionWrapper::Minor()),
       gdBuildVersion(gd::VersionWrapper::Build()),
@@ -830,7 +830,7 @@ void Project::UnserializeFrom(const SerializerElement& element) {
   eventsFunctionsExtensionsElement.ConsiderAsArrayOf(
       "eventsFunctionsExtension");
   // First, only unserialize behaviors and objects names.
-  // As event based objects can contains CustomObject and Custom Object,
+  // As event based objects can contains custom behaviors and custom objects,
   // this allows them to reference EventBasedBehavior and EventBasedObject
   // respectively.
   for (std::size_t i = 0;
@@ -845,15 +845,17 @@ void Project::UnserializeFrom(const SerializerElement& element) {
     newEventsFunctionsExtension.UnserializeExtensionDeclarationFrom(
         *this, eventsFunctionsExtensionElement);
   }
-  // Then unserialize functions, behaviors and objects content.
-  for (std::size_t i = 0;
-       i < eventsFunctionsExtensionsElement.GetChildrenCount();
-       ++i) {
-    const SerializerElement& eventsFunctionsExtensionElement =
-        eventsFunctionsExtensionsElement.GetChild(i);
 
-    eventsFunctionsExtensions.at(i)->UnserializeExtensionImplementationFrom(
-        *this, eventsFunctionsExtensionElement);
+  // Then unserialize functions, behaviors and objects content.
+  for (gd::String &extensionName :
+       GetUnserializingOrderExtensionNames(eventsFunctionsExtensionsElement)) {
+    size_t extensionIndex = GetEventsFunctionsExtensionPosition(extensionName);
+    const SerializerElement &eventsFunctionsExtensionElement =
+        eventsFunctionsExtensionsElement.GetChild(extensionIndex);
+
+    eventsFunctionsExtensions.at(extensionIndex)
+        ->UnserializeExtensionImplementationFrom(
+            *this, eventsFunctionsExtensionElement);
   }
 
   objectsContainer.GetObjectGroups().UnserializeFrom(
@@ -922,6 +924,83 @@ void Project::UnserializeFrom(const SerializerElement& element) {
   }
 }
 
+std::vector<gd::String> Project::GetUnserializingOrderExtensionNames(
+    const gd::SerializerElement &eventsFunctionsExtensionsElement) {
+  
+  // Some extension have custom objects, which have child objects coming from other extension. 
+  // These child objects must be loaded completely before the parent custom obejct can be unserialized.
+  // This implies: an order on the extension unserialization (and no cycles).
+
+  // At the beginning, everything is yet to be loaded.
+  std::vector<gd::String> remainingExtensionNames(
+      eventsFunctionsExtensions.size());
+  for (std::size_t i = 0; i < eventsFunctionsExtensions.size(); ++i) {
+    remainingExtensionNames[i] = eventsFunctionsExtensions.at(i)->GetName();
+  }
+    
+  // Helper allowing to find if an extension has an object that depends on 
+  // at least one other object from another extension that is not loaded yet.
+  auto isDependentFromRemainingExtensions =
+      [&remainingExtensionNames](
+          const gd::SerializerElement &eventsFunctionsExtensionElement) {
+        auto &eventsBasedObjectsElement =
+            eventsFunctionsExtensionElement.GetChild("eventsBasedObjects");
+        eventsBasedObjectsElement.ConsiderAsArrayOf("eventsBasedObject");
+        for (std::size_t eventsBasedObjectsIndex = 0;
+             eventsBasedObjectsIndex <
+             eventsBasedObjectsElement.GetChildrenCount();
+             ++eventsBasedObjectsIndex) {
+          auto &objectsElement =
+              eventsBasedObjectsElement.GetChild(eventsBasedObjectsIndex)
+                  .GetChild("objects");
+          objectsElement.ConsiderAsArrayOf("object");
+
+          for (std::size_t objectIndex = 0;
+               objectIndex < objectsElement.GetChildrenCount(); ++objectIndex) {
+            const gd::String &objectType =
+                objectsElement.GetChild(objectIndex).GetStringAttribute("type");
+
+            gd::String extensionName =
+                eventsFunctionsExtensionElement.GetStringAttribute("name");
+            gd::String usedExtensionName =
+                gd::PlatformExtension::GetExtensionFromFullObjectType(objectType);
+
+            if (usedExtensionName != extensionName &&
+                std::find(remainingExtensionNames.begin(),
+                          remainingExtensionNames.end(),
+                          usedExtensionName) != remainingExtensionNames.end()) {
+              return true;
+            }
+          }
+        }
+        return false;
+      };
+
+  // Find the order of loading so that the extensions are loaded when all the other
+  // extensions they depend on are already loaded.
+  std::vector<gd::String> loadOrderExtensionNames;
+  bool foundAnyExtension = true;
+  while (foundAnyExtension) {
+    foundAnyExtension = false;
+    for (std::size_t i = 0; i < remainingExtensionNames.size(); ++i) {
+      auto extensionName = remainingExtensionNames[i];
+      size_t extensionIndex =
+          GetEventsFunctionsExtensionPosition(extensionName);
+      const SerializerElement &eventsFunctionsExtensionElement =
+          eventsFunctionsExtensionsElement.GetChild(extensionIndex);
+
+      if (!isDependentFromRemainingExtensions(
+              eventsFunctionsExtensionElement)) {
+        loadOrderExtensionNames.push_back(extensionName);
+        remainingExtensionNames.erase(remainingExtensionNames.begin() + i);
+        i--;
+        foundAnyExtension = true;
+      }
+    }
+  }
+  return loadOrderExtensionNames;
+}
+
 void Project::SerializeTo(SerializerElement& element) const {
   SerializerElement& versionElement = element.AddChild("gdVersion");
   versionElement.SetAttribute("major", gd::VersionWrapper::Major());

Core/GDCore/Project/Project.h

@@ -990,16 +990,12 @@ class GD_CORE_API Project {
   /**
    * \brief return the objects of the project.
    */
-  gd::ObjectsContainer& GetObjects() {
-    return objectsContainer;
-  }
+  gd::ObjectsContainer& GetObjects() { return objectsContainer; }
 
   /**
    * \brief Return the objects of the project.
    */
-  const gd::ObjectsContainer& GetObjects() const {
-    return objectsContainer;
-  }
+  const gd::ObjectsContainer& GetObjects() const { return objectsContainer; }
   ///@}
 
   /** \name Identifier names
@@ -1080,32 +1076,43 @@ class GD_CORE_API Project {
    */
   void Init(const gd::Project& project);
 
-  gd::String name;            ///< Game name
-  gd::String description;     ///< Game description
-  gd::String version;         ///< Game version number (used for some exports)
-  unsigned int windowWidth;   ///< Window default width
-  unsigned int windowHeight;  ///< Window default height
-  int maxFPS;                 ///< Maximum Frame Per Seconds, -1 for unlimited
-  unsigned int minFPS;  ///< Minimum Frame Per Seconds ( slow down game if FPS
-                        ///< are below this number )
-  bool verticalSync;    ///< If true, must activate vertical synchronization.
+  /**
+   * @brief Get the project extensions names in the order they have to be unserialized.
+   * 
+   * Child-objects need the event-based objects they use to be loaded completely
+   * before they are unserialized.
+   */
+  std::vector<gd::String> GetUnserializingOrderExtensionNames(const gd::SerializerElement &eventsFunctionsExtensionsElement);
+
+  gd::String name;         ///< Game name
+  gd::String description;  ///< Game description
+  gd::String version;      ///< Game version number (used for some exports)
+  unsigned int windowWidth = 0;   ///< Window default width
+  unsigned int windowHeight = 0;  ///< Window default height
+  int maxFPS = 0;           ///< Maximum Frame Per Seconds, -1 for unlimited
+  unsigned int minFPS = 0;  ///< Minimum Frame Per Seconds ( slow down game if
+                            ///< FPS are below this number )
+  bool verticalSync =
+      false;  ///< If true, must activate vertical synchronization.
   gd::String scaleMode;
-  bool pixelsRounding;  ///< If true, the rendering should stop pixel
-                        ///< interpolation of rendered objects.
-  bool adaptGameResolutionAtRuntime;  ///< Should the game resolution be adapted
-                                      ///< to the window size at runtime
+  bool pixelsRounding = false;  ///< If true, the rendering should stop pixel
+                                ///< interpolation of rendered objects.
+  bool adaptGameResolutionAtRuntime =
+      true;  ///< Should the game resolution be adapted
+             ///< to the window size at runtime
   gd::String
       sizeOnStartupMode;  ///< How to adapt the game size to the screen. Can be
                           ///< "adaptWidth", "adaptHeight" or empty
   gd::String antialiasingMode;
-  bool isAntialisingEnabledOnMobile;
+  bool isAntialisingEnabledOnMobile = false;
   gd::String projectUuid;  ///< UUID useful to identify the game in online
                            ///< services or database that would require it.
-  bool useDeprecatedZeroAsDefaultZOrder;  ///< If true, objects created from
-                                          ///< events will have 0 as Z order,
-                                          ///< instead of the highest Z order
-                                          ///< found on the layer at the scene
-                                          ///< startup.
+  bool useDeprecatedZeroAsDefaultZOrder =
+      false;  ///< If true, objects created from
+              ///< events will have 0 as Z order,
+              ///< instead of the highest Z order
+              ///< found on the layer at the scene
+              ///< startup.
   std::vector<std::unique_ptr<gd::Layout> > scenes;  ///< List of all scenes
   gd::VariablesContainer variables;  ///< Initial global variables
   gd::ObjectsContainer objectsContainer;
@@ -1118,7 +1125,8 @@ class GD_CORE_API Project {
   std::vector<gd::Platform*>
       platforms;  ///< Pointers to the platforms this project supports.
   gd::String firstLayout;
-  bool useExternalSourceFiles;  ///< True if game used external source files.
+  bool useExternalSourceFiles =
+      false;  ///< True if game used external source files.
   std::vector<std::unique_ptr<gd::SourceFile> >
       externalSourceFiles;  ///< List of external source files used.
   gd::String author;        ///< Game author name, for publishing purpose.
@@ -1127,35 +1135,40 @@ class GD_CORE_API Project {
   std::vector<gd::String>
       authorUsernames;  ///< Game author usernames, from GDevelop users DB.
   std::vector<gd::String> categories;  ///< Game categories
-  bool isPlayableWithKeyboard;  ///< The project is playable with a keyboard.
-  bool isPlayableWithGamepad;   ///< The project is playable with a gamepad.
-  bool isPlayableWithMobile;    ///< The project is playable on a mobile.
-  gd::String packageName;       ///< Game package name
+  bool isPlayableWithKeyboard =
+      false;  ///< The project is playable with a keyboard.
+  bool isPlayableWithGamepad =
+      false;  ///< The project is playable with a gamepad.
+  bool isPlayableWithMobile = false;  ///< The project is playable on a mobile.
+  gd::String packageName;             ///< Game package name
   gd::String templateSlug;  ///< The slug of the template from which the game is
                             ///< created.
   gd::String orientation;   ///< Lock game orientation (on mobile devices).
                             ///< "default", "landscape" or "portrait".
-  bool
-      folderProject;  ///< True if folder project, false if single file project.
+  bool folderProject =
+      false;  ///< True if folder project, false if single file project.
   gd::String
       projectFile;  ///< Path to the project file - when editing a local file.
   gd::String latestCompilationDirectory;
-  gd::Platform*
-      currentPlatform;  ///< The platform being used to edit the project.
+  gd::Platform* currentPlatform =
+      nullptr;  ///< The platform being used to edit the project.
   gd::PlatformSpecificAssets platformSpecificAssets;
   gd::LoadingScreen loadingScreen;
   gd::Watermark watermark;
   std::vector<std::unique_ptr<gd::ExternalEvents> >
       externalEvents;  ///< List of all externals events
   ExtensionProperties
-      extensionProperties;              ///< The properties of the extensions.
+      extensionProperties;  ///< The properties of the extensions.
   gd::WholeProjectDiagnosticReport wholeProjectDiagnosticReport;
-  mutable unsigned int gdMajorVersion;  ///< The GD major version used the last
-                                        ///< time the project was saved.
-  mutable unsigned int gdMinorVersion;  ///< The GD minor version used the last
-                                        ///< time the project was saved.
-  mutable unsigned int gdBuildVersion;  ///< The GD build version used the last
-                                        ///< time the project was saved.
+  mutable unsigned int gdMajorVersion =
+      0;  ///< The GD major version used the last
+          ///< time the project was saved.
+  mutable unsigned int gdMinorVersion =
+      0;  ///< The GD minor version used the last
+          ///< time the project was saved.
+  mutable unsigned int gdBuildVersion =
+      0;  ///< The GD build version used the last
+          ///< time the project was saved.
 };
 
 }  // namespace gd

Core/GDCore/Project/QuickCustomization.h

@@ -1,16 +1,37 @@
 #pragma once
 
+#include "GDCore/String.h"
+
 namespace gd {
 class QuickCustomization {
  public:
   enum Visibility {
-    /** Visibility based on the parent or editor heuristics (probably visible). */
+    /** Visibility based on the parent or editor heuristics (probably visible).
+     */
     Default,
     /** Visible in the quick customization editor. */
     Visible,
     /** Not visible in the quick customization editor. */
     Hidden
   };
+
+  static Visibility StringAsVisibility(const gd::String& str) {
+    if (str == "visible")
+      return Visibility::Visible;
+    else if (str == "hidden")
+      return Visibility::Hidden;
+
+    return Visibility::Default;
+  }
+
+  static gd::String VisibilityAsString(Visibility visibility) {
+    if (visibility == Visibility::Visible)
+      return "visible";
+    else if (visibility == Visibility::Hidden)
+      return "hidden";
+
+    return "default";
+  }
 };
 
 }  // namespace gd

Core/GDCore/Project/QuickCustomizationVisibilitiesContainer.cpp

@@ -0,0 +1,58 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "GDCore/Project/QuickCustomizationVisibilitiesContainer.h"
+
+#include <algorithm>
+#include <iostream>
+
+#include "GDCore/Project/QuickCustomization.h"
+#include "GDCore/Serialization/SerializerElement.h"
+#include "GDCore/String.h"
+#include "GDCore/Tools/UUID/UUID.h"
+
+using namespace std;
+
+namespace gd {
+
+QuickCustomizationVisibilitiesContainer::
+    QuickCustomizationVisibilitiesContainer() {}
+
+bool QuickCustomizationVisibilitiesContainer::IsEmpty() const {
+  return visibilities.empty();
+}
+
+void QuickCustomizationVisibilitiesContainer::Set(
+    const gd::String& name, QuickCustomization::Visibility visibility) {
+  visibilities[name] = visibility;
+}
+
+QuickCustomization::Visibility QuickCustomizationVisibilitiesContainer::Get(
+    const gd::String& name) const {
+  auto it = visibilities.find(name);
+  if (it != visibilities.end()) return it->second;
+
+  return QuickCustomization::Visibility::Default;
+}
+
+void QuickCustomizationVisibilitiesContainer::SerializeTo(
+    SerializerElement& element) const {
+  for (auto& visibility : visibilities) {
+    element.SetStringAttribute(
+        visibility.first,
+        QuickCustomization::VisibilityAsString(visibility.second));
+  }
+}
+
+void QuickCustomizationVisibilitiesContainer::UnserializeFrom(
+    const SerializerElement& element) {
+  visibilities.clear();
+  for (auto& child : element.GetAllChildren()) {
+    visibilities[child.first] =
+        QuickCustomization::StringAsVisibility(child.second->GetStringValue());
+  }
+}
+
+}  // namespace gd

Core/GDCore/Project/QuickCustomizationVisibilitiesContainer.h

@@ -0,0 +1,29 @@
+#pragma once
+#include <memory>
+#include <vector>
+
+#include "GDCore/Project/QuickCustomization.h"
+#include "GDCore/Serialization/SerializerElement.h"
+#include "GDCore/String.h"
+
+namespace gd {
+
+class QuickCustomizationVisibilitiesContainer {
+ public:
+  QuickCustomizationVisibilitiesContainer();
+
+  void Set(const gd::String& name, QuickCustomization::Visibility visibility);
+
+  QuickCustomization::Visibility Get(const gd::String& name) const;
+
+  bool IsEmpty() const;
+
+  void SerializeTo(SerializerElement& element) const;
+
+  void UnserializeFrom(const SerializerElement& element);
+
+ private:
+  std::map<gd::String, QuickCustomization::Visibility> visibilities;
+};
+
+}  // namespace gd

Core/GDCore/Project/ResourcesManager.h

@@ -152,8 +152,8 @@ class GD_CORE_API Resource {
   gd::String metadata;
   gd::String originName;
   gd::String originIdentifier;
-  bool userAdded;  ///< True if the resource was added by the user, and not
-                   ///< automatically by GDevelop.
+  bool userAdded = false;  ///< True if the resource was added by the user, and not
+                           ///< automatically by GDevelop.
 
   static gd::String badStr;
 };

Core/GDCore/Project/Variable.h

@@ -33,7 +33,7 @@ class GD_CORE_API Variable {
     Unknown,
     /** Used when objects of a group have different types for a variable. */
     MixedTypes,
-    
+
     // Primitive types
     String,
     Number,
@@ -393,11 +393,11 @@ class GD_CORE_API Variable {
    */
   static Type StringAsType(const gd::String& str);
 
-  bool folded;
+  bool folded = false;
   mutable Type type;
   mutable gd::String str;
   mutable double value;
-  mutable bool boolVal;
+  mutable bool boolVal = false;
   mutable bool hasMixedValues;
   mutable std::map<gd::String, std::shared_ptr<Variable>>
       children;  ///< Children, when the variable is considered as a structure.

Core/GDCore/Project/VariablesContainer.h

@@ -187,7 +187,7 @@ class GD_CORE_API VariablesContainer {
   ///@}
 
  private:
-  SourceType sourceType;
+  SourceType sourceType = Unknown;
   std::vector<std::pair<gd::String, std::shared_ptr<gd::Variable>>> variables;
   mutable gd::String persistentUuid;  ///< A persistent random version 4 UUID,
                                       ///< useful for computing changesets.

Core/GDCore/Serialization/SerializerElement.h

@@ -456,13 +456,13 @@ class GD_CORE_API SerializerElement {
    */
   void Init(const gd::SerializerElement &other);
 
-  bool valueUndefined;  ///< If true, the element does not have a value.
+  bool valueUndefined = true;  ///< If true, the element does not have a value.
   SerializerValue elementValue;
 
   std::map<gd::String, SerializerValue> attributes;
   std::vector<std::pair<gd::String, std::shared_ptr<SerializerElement> > >
       children;
-  mutable bool isArray;        ///< true if element is considered as an array
+  mutable bool isArray = false;  ///< true if element is considered as an array
   mutable gd::String arrayOf;  ///< The name of the children (was useful for XML
                                ///< parsed elements).
   mutable gd::String deprecatedArrayOf;  ///< Alternate name for children

Core/GDCore/Serialization/rapidjson/.clang-tidy

@@ -0,0 +1,2 @@
+# Disable all checks in this folder.
+Checks: '-*'

Core/GDCore/String.cpp

@@ -4,6 +4,8 @@
  * This project is released under the MIT License.
  */
 
+// NOLINTBEGIN
+
 #include "GDCore/String.h"
 
 #include <algorithm>
@@ -825,3 +827,5 @@ bool GD_CORE_API CaseInsensitiveEquiv( const String &lhs, const String &rhs, boo
 }
 
 }
+
+// NOLINTEND

Core/GDCore/String.h

@@ -4,6 +4,8 @@
  * This project is released under the MIT License.
  */
 
+// NOLINTBEGIN
+
 #ifndef GDCORE_UTF8_STRING_H
 #define GDCORE_UTF8_STRING_H
 
@@ -898,3 +900,5 @@ namespace std
  * In Unicode, uppercasing/lowercasing strings to compare them in a case-insensitive way is not recommended.
  * That's why the function gd::CaseInsensitiveEquiv exists to compare two strings in a case-insensitive way.
  */
+
+// NOLINTEND

Core/GDCore/Tools/PolymorphicClone.h

@@ -2,6 +2,7 @@
 #define GD_CORE_POLYMORPHICCLONE_H
 
 #include <memory>
+#include <vector>
 
 namespace gd {
 

Core/GDCore/Tools/SerializableWithNameList.inl

@@ -3,6 +3,7 @@
  * Copyright 2008-present Florian Rival (Florian.Rival@gmail.com). All rights
  * reserved. This project is released under the MIT License.
  */
+#include <algorithm>
 #include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/String.h"
 #include "GDCore/Tools/MakeUnique.h"

Core/GDCore/Tools/SystemStats.cpp

@@ -3,6 +3,9 @@
  * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
  * reserved. This project is released under the MIT License.
  */
+
+// NOLINTBEGIN
+
 #include "SystemStats.h"
 #include "stdio.h"
 #include "stdlib.h"
@@ -49,3 +52,5 @@ size_t SystemStats::GetUsedVirtualMemory() {
 }
 
 }  // namespace gd
+
+// NOLINTEND

Core/GDCore/Tools/UUID/.clang-tidy

@@ -0,0 +1,2 @@
+# Disable all checks in this folder.
+Checks: '-*'

Core/GDCore/Utf8/.clang-tidy

@@ -0,0 +1,2 @@
+# Disable all checks in this folder.
+Checks: '-*'

Core/tests/ObjectSerialization.cpp

@@ -262,4 +262,134 @@ TEST_CASE("ObjectSerialization", "[common]") {
     auto &behaviorElement = behaviorsElement.GetChild(0);
     REQUIRE(behaviorElement.GetStringAttribute("name") == "MyBehavior");
   }
-}
+
+  // Event-based object dependency cycles are not tested because they are forbidden by the editor.
+  SECTION("Save and load a project with custom object dependencies from different extensions") {
+    gd::Platform platform;
+    gd::Project writtenProject;
+    SetupProjectWithDummyPlatform(writtenProject, platform);
+
+    {
+      // The extension with the dependency is added first to make the
+      // implementation change the order in which extensions are loaded.
+      auto &eventsExtensionWithDependency =
+          writtenProject.InsertNewEventsFunctionsExtension(
+              "MyEventsExtensionWithDependency", 0);
+      auto &eventsExtension = writtenProject.InsertNewEventsFunctionsExtension(
+          "MyEventsExtension", 1);
+      {
+        auto &eventsBasedObject =
+            eventsExtension.GetEventsBasedObjects().InsertNew(
+                "MyEventsBasedObject", 0);
+        auto &childObject = eventsBasedObject.GetObjects().InsertNewObject(
+            writtenProject, "MyExtension::Sprite", "MyChildSprite", 0);
+      }
+      // An event-based object with a custom object child that overrides its
+      // configuration.
+      {
+        auto &eventsBasedObject =
+            eventsExtensionWithDependency.GetEventsBasedObjects().InsertNew(
+                "MyEventsBasedObjectWithDependency", 0);
+        auto &childObject = eventsBasedObject.GetObjects().InsertNewObject(
+            writtenProject, "MyEventsExtension::MyEventsBasedObject",
+            "MyChildCustomObject", 0);
+        auto *customObjectConfiguration =
+            dynamic_cast<gd::CustomObjectConfiguration *>(
+                &childObject.GetConfiguration());
+        auto &spriteConfiguration =
+            customObjectConfiguration->GetChildObjectConfiguration(
+                "MyChildSprite");
+        SetupSpriteConfiguration(spriteConfiguration);
+      }
+    }
+
+    SerializerElement projectElement;
+    writtenProject.SerializeTo(projectElement);
+
+    gd::Project readProject;
+    readProject.AddPlatform(platform);
+    readProject.UnserializeFrom(projectElement);
+
+    REQUIRE(readProject.GetEventsFunctionsExtensionsCount() == 2);
+    auto &eventsExtensionWithDependency =
+        readProject.GetEventsFunctionsExtension(0);
+    REQUIRE(eventsExtensionWithDependency.GetEventsBasedObjects().GetCount() ==
+            1);
+    auto &eventsBasedObject =
+        eventsExtensionWithDependency.GetEventsBasedObjects().Get(0);
+    REQUIRE(eventsBasedObject.GetObjects().GetObjectsCount() == 1);
+    auto &childObject = eventsBasedObject.GetObjects().GetObject(0);
+    REQUIRE(childObject.GetName() == "MyChildCustomObject");
+    REQUIRE(childObject.GetType() == "MyEventsExtension::MyEventsBasedObject");
+    auto *customObjectConfiguration =
+        dynamic_cast<gd::CustomObjectConfiguration *>(
+            &childObject.GetConfiguration());
+    REQUIRE(customObjectConfiguration != nullptr);
+    auto &spriteConfiguration =
+        customObjectConfiguration->GetChildObjectConfiguration("MyChildSprite");
+    CheckSpriteConfiguration(spriteConfiguration);
+  }
+
+  SECTION("Save and load a project with custom object dependencies inside an extension") {
+    gd::Platform platform;
+    gd::Project writtenProject;
+    SetupProjectWithDummyPlatform(writtenProject, platform);
+
+    {
+      auto &eventsExtension = writtenProject.InsertNewEventsFunctionsExtension(
+          "MyEventsExtension", 0);
+      {
+        auto &eventsBasedObject =
+            eventsExtension.GetEventsBasedObjects().InsertNew(
+                "MyEventsBasedObject", 0);
+        auto &childObject = eventsBasedObject.GetObjects().InsertNewObject(
+            writtenProject, "MyExtension::Sprite", "MyChildSprite", 0);
+      }
+      // An event-based object with a custom object child that overrides its
+      // configuration.
+      // The extension with the dependency is added first to make the
+      // implementation change the order in which extensions are loaded.
+      {
+        auto &eventsBasedObject =
+            eventsExtension.GetEventsBasedObjects().InsertNew(
+                "MyEventsBasedObjectWithDependency", 0);
+        auto &childObject = eventsBasedObject.GetObjects().InsertNewObject(
+            writtenProject, "MyEventsExtension::MyEventsBasedObject",
+            "MyChildCustomObject", 0);
+        auto *customObjectConfiguration =
+            dynamic_cast<gd::CustomObjectConfiguration *>(
+                &childObject.GetConfiguration());
+        auto &spriteConfiguration =
+            customObjectConfiguration->GetChildObjectConfiguration(
+                "MyChildSprite");
+        SetupSpriteConfiguration(spriteConfiguration);
+      }
+    }
+
+    SerializerElement projectElement;
+    writtenProject.SerializeTo(projectElement);
+
+    gd::Project readProject;
+    readProject.AddPlatform(platform);
+    readProject.UnserializeFrom(projectElement);
+
+    REQUIRE(readProject.GetEventsFunctionsExtensionsCount() == 1);
+    auto &eventsExtension =
+        readProject.GetEventsFunctionsExtension(0);
+    REQUIRE(eventsExtension.GetEventsBasedObjects().GetCount() ==
+            2);
+    auto &eventsBasedObject =
+        eventsExtension.GetEventsBasedObjects().Get(0);
+    REQUIRE(eventsBasedObject.GetObjects().GetObjectsCount() == 1);
+    auto &childObject = eventsBasedObject.GetObjects().GetObject(0);
+    REQUIRE(childObject.GetName() == "MyChildCustomObject");
+    REQUIRE(childObject.GetType() == "MyEventsExtension::MyEventsBasedObject");
+    auto *customObjectConfiguration =
+        dynamic_cast<gd::CustomObjectConfiguration *>(
+            &childObject.GetConfiguration());
+    REQUIRE(customObjectConfiguration != nullptr);
+    auto &spriteConfiguration =
+        customObjectConfiguration->GetChildObjectConfiguration("MyChildSprite");
+    CheckSpriteConfiguration(spriteConfiguration);
+  }
+}

Core/tests/WholeProjectRefactorer.cpp

@@ -1992,7 +1992,7 @@ TEST_CASE("WholeProjectRefactorer", "[common]") {
     SetupProjectWithDummyPlatform(project, platform);
     auto &eventsExtension = SetupProjectWithEventsFunctionExtension(project);
 
-    // A behavior is copied from one extension to another.
+    // An events-based behavior is copied from one extension to another.
 
     auto &destinationExtension =
         project.InsertNewEventsFunctionsExtension("DestinationExtension", 0);
@@ -2001,21 +2001,19 @@ TEST_CASE("WholeProjectRefactorer", "[common]") {
     // instruction keeps pointing to the old extension.
     destinationExtension.InsertNewEventsFunction("MyEventsFunction", 0);
 
-    auto &copiedBehavior =
+    auto &duplicatedBehavior =
         destinationExtension.GetEventsBasedBehaviors().InsertNew(
             "MyOtherEventsBasedBehavior", 0);
-    copiedBehavior.SetFullName("My events based behavior");
-    copiedBehavior.SetDescription("An events based behavior for test");
-    copiedBehavior.SetObjectType("MyEventsExtension::MyEventsBasedObject");
+    duplicatedBehavior.SetObjectType("MyEventsExtension::MyEventsBasedObject");
 
     // Add the copied events.
-    auto &behaviorEventsFunctions = copiedBehavior.GetEventsFunctions();
-    auto &behaviorAction = behaviorEventsFunctions.InsertNewEventsFunction(
-        "MyBehaviorEventsFunction", 0);
+    auto &eventsFunctions = duplicatedBehavior.GetEventsFunctions();
+    auto &behaviorAction = eventsFunctions.InsertNewEventsFunction(
+        "MyObjectEventsFunction", 0);
     SetupEvents(behaviorAction.GetEvents());
 
     gd::WholeProjectRefactorer::UpdateExtensionNameInEventsBasedBehavior(
-        project, destinationExtension, copiedBehavior, "MyEventsExtension");
+        project, destinationExtension, duplicatedBehavior, "MyEventsExtension");
 
     // Check that events function calls in instructions have been renamed
     REQUIRE(GetEventFirstActionType(behaviorAction.GetEvents().GetEvent(
@@ -2023,13 +2021,123 @@ TEST_CASE("WholeProjectRefactorer", "[common]") {
 
     for (auto *eventsList : GetEventsLists(project)) {
       // Check that events function calls in instructions have NOT been renamed
-      // outside of the copied behavior.
+      // outside of the copied events-based behavior.
       REQUIRE(
           GetEventFirstActionType(eventsList->GetEvent(FreeFunctionAction)) ==
           "MyEventsExtension::MyEventsFunction");
     }
   }
 
+  SECTION("Events extension renamed in instructions scoped to one object") {
+    gd::Project project;
+    gd::Platform platform;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &eventsExtension = SetupProjectWithEventsFunctionExtension(project);
+
+    // An events-based object is copied from one extension to another.
+
+    auto &destinationExtension =
+        project.InsertNewEventsFunctionsExtension("DestinationExtension", 0);
+    // Add the function used by the instruction that is checked in this test.
+    // When the function doesn't exist the destination extension, the
+    // instruction keeps pointing to the old extension.
+    destinationExtension.InsertNewEventsFunction("MyEventsFunction", 0);
+
+    auto &duplicatedObject =
+        destinationExtension.GetEventsBasedObjects().InsertNew(
+            "MyDuplicatedEventsBasedObject", 0);
+
+    // Add the copied events.
+    auto &eventsFunctions = duplicatedObject.GetEventsFunctions();
+    auto &objectAction = eventsFunctions.InsertNewEventsFunction(
+        "MyBehaviorEventsFunction", 0);
+    SetupEvents(objectAction.GetEvents());
+
+    gd::WholeProjectRefactorer::UpdateExtensionNameInEventsBasedObject(
+        project, destinationExtension, duplicatedObject, "MyEventsExtension");
+
+    // Check that events function calls in instructions have been renamed
+    REQUIRE(GetEventFirstActionType(objectAction.GetEvents().GetEvent(
+                FreeFunctionAction)) == "DestinationExtension::MyEventsFunction");
+
+    for (auto *eventsList : GetEventsLists(project)) {
+      // Check that events function calls in instructions have NOT been renamed
+      // outside of the copied events-based object.
+      REQUIRE(
+          GetEventFirstActionType(eventsList->GetEvent(FreeFunctionAction)) ==
+          "MyEventsExtension::MyEventsFunction");
+    }
+  }
+
+  SECTION("Events-based behavior renamed in instructions scoped to one behavior") {
+    gd::Project project;
+    gd::Platform platform;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &eventsExtension = SetupProjectWithEventsFunctionExtension(project);
+
+    // An events-based behavior is duplicated in the same extension.
+    auto &duplicatedBehavior =
+        eventsExtension.GetEventsBasedBehaviors().InsertNew(
+            "MyDuplicatedEventsBasedBehavior", 0);
+    duplicatedBehavior.SetObjectType("MyEventsExtension::MyEventsBasedObject");
+
+    // Add the copied events.
+    auto &eventsFunctions = duplicatedBehavior.GetEventsFunctions();
+    auto &behaviorAction = eventsFunctions.InsertNewEventsFunction(
+        "MyBehaviorEventsFunction", 0);
+    SetupEvents(behaviorAction.GetEvents());
+
+    gd::WholeProjectRefactorer::UpdateBehaviorNameInEventsBasedBehavior(
+        project, eventsExtension, duplicatedBehavior, "MyEventsBasedBehavior");
+
+    // Check that events function calls in instructions have been renamed
+    REQUIRE(GetEventFirstActionType(
+                behaviorAction.GetEvents().GetEvent(BehaviorAction)) ==
+            "MyEventsExtension::MyDuplicatedEventsBasedBehavior::MyBehaviorEventsFunction");
+
+    for (auto *eventsList : GetEventsLists(project)) {
+      // Check that events function calls in instructions have NOT been renamed
+      // outside of the duplicated events-based behavior.
+      REQUIRE(
+          GetEventFirstActionType(eventsList->GetEvent(BehaviorAction)) ==
+          "MyEventsExtension::MyEventsBasedBehavior::MyBehaviorEventsFunction");
+    }
+  }
+
+  SECTION("Events-based object renamed in instructions scoped to one object") {
+    gd::Project project;
+    gd::Platform platform;
+    SetupProjectWithDummyPlatform(project, platform);
+    auto &eventsExtension = SetupProjectWithEventsFunctionExtension(project);
+
+    // An events-based object is duplicated in the same extension.
+    auto &duplicatedObject =
+        eventsExtension.GetEventsBasedObjects().InsertNew(
+            "MyDuplicatedEventsBasedObject", 0);
+
+    // Add the copied events.
+    auto &eventsFunctions = duplicatedObject.GetEventsFunctions();
+    auto &objectAction = eventsFunctions.InsertNewEventsFunction(
+        "MyObjectEventsFunction", 0);
+    SetupEvents(objectAction.GetEvents());
+
+    gd::WholeProjectRefactorer::UpdateObjectNameInEventsBasedObject(
+        project, eventsExtension, duplicatedObject, "MyEventsBasedObject");
+
+    // Check that events function calls in instructions have been renamed
+    REQUIRE(GetEventFirstActionType(
+                objectAction.GetEvents().GetEvent(ObjectAction)) ==
+            "MyEventsExtension::MyDuplicatedEventsBasedObject::MyObjectEventsFunction");
+
+    for (auto *eventsList : GetEventsLists(project)) {
+      // Check that events function calls in instructions have NOT been renamed
+      // outside of the duplicated events-based object.
+      REQUIRE(
+          GetEventFirstActionType(eventsList->GetEvent(ObjectAction)) ==
+          "MyEventsExtension::MyEventsBasedObject::MyObjectEventsFunction");
+    }
+  }
+
   SECTION("Events extension renamed in parameters") {
     gd::Project project;
     gd::Platform platform;

Extensions/3D/AmbientLight.ts

@@ -73,9 +73,7 @@ namespace gdjs {
           }
           updateStringParameter(parameterName: string, value: string): void {
             if (parameterName === 'color') {
-              this.light.color.setHex(
-                gdjs.PixiFiltersTools.rgbOrHexToHexNumber(value)
-              );
+              this.light.color.setHex(gdjs.rgbOrHexStringToNumber(value));
             }
           }
           updateColorParameter(parameterName: string, value: number): void {

Extensions/3D/DirectionalLight.ts

@@ -94,7 +94,7 @@ namespace gdjs {
           updateStringParameter(parameterName: string, value: string): void {
             if (parameterName === 'color') {
               this.light.color = new THREE.Color(
-                gdjs.PixiFiltersTools.rgbOrHexToHexNumber(value)
+                gdjs.rgbOrHexStringToNumber(value)
               );
             }
             if (parameterName === 'top') {

Extensions/3D/ExponentialFog.ts

@@ -71,7 +71,7 @@ namespace gdjs {
           updateStringParameter(parameterName: string, value: string): void {
             if (parameterName === 'color') {
               this.fog.color = new THREE.Color(
-                gdjs.PixiFiltersTools.rgbOrHexToHexNumber(value)
+                gdjs.rgbOrHexStringToNumber(value)
               );
             }
           }

Extensions/3D/HemisphereLight.ts

@@ -95,12 +95,12 @@ namespace gdjs {
           updateStringParameter(parameterName: string, value: string): void {
             if (parameterName === 'skyColor') {
               this.light.color = new THREE.Color(
-                gdjs.PixiFiltersTools.rgbOrHexToHexNumber(value)
+                gdjs.rgbOrHexStringToNumber(value)
               );
             }
             if (parameterName === 'groundColor') {
               this.light.groundColor = new THREE.Color(
-                gdjs.PixiFiltersTools.rgbOrHexToHexNumber(value)
+                gdjs.rgbOrHexStringToNumber(value)
               );
             }
             if (parameterName === 'top') {

Extensions/3D/JsExtension.js

@@ -803,11 +803,8 @@ module.exports = {
     }
 
     const Cube3DObject = new gd.ObjectJsImplementation();
-    Cube3DObject.updateProperty = function (
-      objectContent,
-      propertyName,
-      newValue
-    ) {
+    Cube3DObject.updateProperty = function (propertyName, newValue) {
+      const objectContent = this.content;
       if (
         propertyName === 'width' ||
         propertyName === 'height' ||
@@ -851,8 +848,9 @@ module.exports = {
 
       return false;
     };
-    Cube3DObject.getProperties = function (objectContent) {
+    Cube3DObject.getProperties = function () {
       const objectProperties = new gd.MapStringPropertyDescriptor();
+      const objectContent = this.content;
 
       objectProperties
         .getOrCreate('enableTextureTransparency')
@@ -878,7 +876,8 @@ module.exports = {
             'The top of each image can touch the **top face** (Y) or the **front face** (Z).'
           )
         )
-        .setGroup(_('Face orientation'));
+        .setGroup(_('Face orientation'))
+        .setAdvanced(true);
 
       objectProperties
         .getOrCreate('width')
@@ -909,7 +908,7 @@ module.exports = {
         .setValue(objectContent.frontFaceResourceName || '')
         .setType('resource')
         .addExtraInfo('image')
-        .setLabel(_('Front face image'))
+        .setLabel(_('Front face'))
         .setGroup(_('Textures'));
 
       objectProperties
@@ -917,7 +916,7 @@ module.exports = {
         .setValue(objectContent.backFaceResourceName || '')
         .setType('resource')
         .addExtraInfo('image')
-        .setLabel(_('Back face image'))
+        .setLabel(_('Back face'))
         .setGroup(_('Textures'));
 
       objectProperties
@@ -932,14 +931,15 @@ module.exports = {
             'The top of the image can touch the **top face** (Y) or the **bottom face** (X).'
           )
         )
-        .setGroup(_('Textures'));
+        .setGroup(_('Face orientation'))
+        .setAdvanced(true);
 
       objectProperties
         .getOrCreate('leftFaceResourceName')
         .setValue(objectContent.leftFaceResourceName || '')
         .setType('resource')
         .addExtraInfo('image')
-        .setLabel(_('Left face image'))
+        .setLabel(_('Left face'))
         .setGroup(_('Textures'));
 
       objectProperties
@@ -947,7 +947,7 @@ module.exports = {
         .setValue(objectContent.rightFaceResourceName || '')
         .setType('resource')
         .addExtraInfo('image')
-        .setLabel(_('Right face image'))
+        .setLabel(_('Right face'))
         .setGroup(_('Textures'));
 
       objectProperties
@@ -955,7 +955,7 @@ module.exports = {
         .setValue(objectContent.topFaceResourceName || '')
         .setType('resource')
         .addExtraInfo('image')
-        .setLabel(_('Top face image'))
+        .setLabel(_('Top face'))
         .setGroup(_('Textures'));
 
       objectProperties
@@ -963,92 +963,98 @@ module.exports = {
         .setValue(objectContent.bottomFaceResourceName || '')
         .setType('resource')
         .addExtraInfo('image')
-        .setLabel(_('Bottom face image'))
+        .setLabel(_('Bottom face'))
         .setGroup(_('Textures'));
 
       objectProperties
         .getOrCreate('frontFaceResourceRepeat')
         .setValue(objectContent.frontFaceResourceRepeat ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Tile front face image'))
+        .setLabel(_('Tile'))
         .setGroup(_('Textures'));
 
       objectProperties
         .getOrCreate('backFaceResourceRepeat')
         .setValue(objectContent.backFaceResourceRepeat ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Tile back face image'))
+        .setLabel(_('Tile'))
         .setGroup(_('Textures'));
 
       objectProperties
         .getOrCreate('leftFaceResourceRepeat')
         .setValue(objectContent.leftFaceResourceRepeat ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Tile left face image'))
+        .setLabel(_('Tile'))
         .setGroup(_('Textures'));
 
       objectProperties
         .getOrCreate('rightFaceResourceRepeat')
         .setValue(objectContent.rightFaceResourceRepeat ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Tile right face image'))
+        .setLabel(_('Tile'))
         .setGroup(_('Textures'));
 
       objectProperties
         .getOrCreate('topFaceResourceRepeat')
         .setValue(objectContent.topFaceResourceRepeat ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Tile top face image'))
+        .setLabel(_('Tile'))
         .setGroup(_('Textures'));
 
       objectProperties
         .getOrCreate('bottomFaceResourceRepeat')
         .setValue(objectContent.bottomFaceResourceRepeat ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Tile bottom face image'))
+        .setLabel(_('Tile'))
         .setGroup(_('Textures'));
 
       objectProperties
         .getOrCreate('frontFaceVisible')
         .setValue(objectContent.frontFaceVisible ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Show front face'))
-        .setGroup(_('Face visibility'));
+        .setLabel(_('Front face'))
+        .setGroup(_('Face visibility'))
+        .setAdvanced(true);
 
       objectProperties
         .getOrCreate('backFaceVisible')
         .setValue(objectContent.backFaceVisible ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Show back face'))
-        .setGroup(_('Face visibility'));
+        .setLabel(_('Back face'))
+        .setGroup(_('Face visibility'))
+        .setAdvanced(true);
 
       objectProperties
         .getOrCreate('leftFaceVisible')
         .setValue(objectContent.leftFaceVisible ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Show left face'))
-        .setGroup(_('Face visibility'));
+        .setLabel(_('Left face'))
+        .setGroup(_('Face visibility'))
+        .setAdvanced(true);
 
       objectProperties
         .getOrCreate('rightFaceVisible')
         .setValue(objectContent.rightFaceVisible ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Show right face'))
-        .setGroup(_('Face visibility'));
+        .setLabel(_('Right face'))
+        .setGroup(_('Face visibility'))
+        .setAdvanced(true);
 
       objectProperties
         .getOrCreate('topFaceVisible')
         .setValue(objectContent.topFaceVisible ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Show top face'))
-        .setGroup(_('Face visibility'));
+        .setLabel(_('Top face'))
+        .setGroup(_('Face visibility'))
+        .setAdvanced(true);
 
       objectProperties
         .getOrCreate('bottomFaceVisible')
         .setValue(objectContent.bottomFaceVisible ? 'true' : 'false')
         .setType('boolean')
-        .setLabel(_('Show bottom face'))
-        .setGroup(_('Face visibility'));
+        .setLabel(_('Bottom face'))
+        .setGroup(_('Face visibility'))
+        .setAdvanced(true);
 
       objectProperties
         .getOrCreate('materialType')
@@ -1060,38 +1066,35 @@ module.exports = {
 
       return objectProperties;
     };
-    Cube3DObject.setRawJSONContent(
-      JSON.stringify({
-        width: 100,
-        height: 100,
-        depth: 100,
-        enableTextureTransparency: false,
-        facesOrientation: 'Y',
-        frontFaceResourceName: '',
-        backFaceResourceName: '',
-        backFaceUpThroughWhichAxisRotation: 'X',
-        leftFaceResourceName: '',
-        rightFaceResourceName: '',
-        topFaceResourceName: '',
-        bottomFaceResourceName: '',
-        frontFaceVisible: true,
-        backFaceVisible: false,
-        leftFaceVisible: true,
-        rightFaceVisible: true,
-        topFaceVisible: true,
-        bottomFaceVisible: true,
-        frontFaceResourceRepeat: false,
-        backFaceResourceRepeat: false,
-        leftFaceResourceRepeat: false,
-        rightFaceResourceRepeat: false,
-        topFaceResourceRepeat: false,
-        bottomFaceResourceRepeat: false,
-        materialType: 'Basic',
-      })
-    );
+    Cube3DObject.content = {
+      width: 100,
+      height: 100,
+      depth: 100,
+      enableTextureTransparency: false,
+      facesOrientation: 'Y',
+      frontFaceResourceName: '',
+      backFaceResourceName: '',
+      backFaceUpThroughWhichAxisRotation: 'X',
+      leftFaceResourceName: '',
+      rightFaceResourceName: '',
+      topFaceResourceName: '',
+      bottomFaceResourceName: '',
+      frontFaceVisible: true,
+      backFaceVisible: false,
+      leftFaceVisible: true,
+      rightFaceVisible: true,
+      topFaceVisible: true,
+      bottomFaceVisible: true,
+      frontFaceResourceRepeat: false,
+      backFaceResourceRepeat: false,
+      leftFaceResourceRepeat: false,
+      rightFaceResourceRepeat: false,
+      topFaceResourceRepeat: false,
+      bottomFaceResourceRepeat: false,
+      materialType: 'Basic',
+    };
 
     Cube3DObject.updateInitialInstanceProperty = function (
-      objectContent,
       instance,
       propertyName,
       newValue
@@ -1099,7 +1102,7 @@ module.exports = {
       return false;
     };
 
-    Cube3DObject.getInitialInstanceProperties = function (content, instance) {
+    Cube3DObject.getInitialInstanceProperties = function (instance) {
       const instanceProperties = new gd.MapStringPropertyDescriptor();
       return instanceProperties;
     };
@@ -2060,7 +2063,10 @@ module.exports = {
     };
 
     const getFirstVisibleFaceResourceName = (objectConfiguration) => {
-      const properties = objectConfiguration.getProperties();
+      const object = gd.castObject(
+        objectConfiguration,
+        gd.ObjectJsImplementation
+      );
 
       const orderedFaces = [
         ['frontFaceVisible', 'frontFaceResourceName'],
@@ -2075,10 +2081,8 @@ module.exports = {
         faceVisibleProperty,
         faceResourceNameProperty,
       ] of orderedFaces) {
-        if (properties.get(faceVisibleProperty).getValue() === 'true') {
-          const textureResource = properties
-            .get(faceResourceNameProperty)
-            .getValue();
+        if (object.content[faceVisibleProperty]) {
+          const textureResource = object.content[faceResourceNameProperty];
           if (textureResource) return textureResource;
         }
       }
@@ -2124,10 +2128,14 @@ module.exports = {
         // Name of the resource that is rendered.
         // If no face is visible, this will be null.
         this._renderedResourceName = undefined;
-        const properties = associatedObjectConfiguration.getProperties();
-        this._defaultWidth = parseFloat(properties.get('width').getValue());
-        this._defaultHeight = parseFloat(properties.get('height').getValue());
-        this._defaultDepth = parseFloat(properties.get('depth').getValue());
+
+        const object = gd.castObject(
+          this._associatedObjectConfiguration,
+          gd.ObjectJsImplementation
+        );
+        this._defaultWidth = object.content.width;
+        this._defaultHeight = object.content.height;
+        this._defaultDepth = object.content.depth;
 
         this._pixiObject = new PIXI.Container();
         this._pixiFallbackObject = new PIXI.Graphics();
@@ -2195,6 +2203,8 @@ module.exports = {
           if (!texture.baseTexture.valid) {
             // Post pone texture update if texture is not loaded.
             texture.once('update', () => {
+              if (this._wasDestroyed) return;
+
               this.updateTexture();
               this.updatePIXISprite();
             });
@@ -2315,70 +2325,68 @@ module.exports = {
           pixiResourcesLoader
         );
 
-        const properties = associatedObjectConfiguration.getProperties();
-        this._defaultWidth = parseFloat(properties.get('width').getValue());
-        this._defaultHeight = parseFloat(properties.get('height').getValue());
-        this._defaultDepth = parseFloat(properties.get('depth').getValue());
+        this._defaultWidth = 1;
+        this._defaultHeight = 1;
+        this._defaultDepth = 1;
 
         this._pixiObject = new PIXI.Graphics();
         this._pixiContainer.addChild(this._pixiObject);
 
-        this._faceResourceNames = [
-          properties.get('frontFaceResourceName').getValue(),
-          properties.get('backFaceResourceName').getValue(),
-          properties.get('leftFaceResourceName').getValue(),
-          properties.get('rightFaceResourceName').getValue(),
-          properties.get('topFaceResourceName').getValue(),
-          properties.get('bottomFaceResourceName').getValue(),
-        ];
-        this._faceVisibilities = [
-          properties.get('frontFaceVisible').getValue() === 'true',
-          properties.get('backFaceVisible').getValue() === 'true',
-          properties.get('leftFaceVisible').getValue() === 'true',
-          properties.get('rightFaceVisible').getValue() === 'true',
-          properties.get('topFaceVisible').getValue() === 'true',
-          properties.get('bottomFaceVisible').getValue() === 'true',
-        ];
-        this._shouldRepeatTextureOnFace = [
-          properties.get('frontFaceResourceRepeat').getValue() === 'true',
-          properties.get('backFaceResourceRepeat').getValue() === 'true',
-          properties.get('leftFaceResourceRepeat').getValue() === 'true',
-          properties.get('rightFaceResourceRepeat').getValue() === 'true',
-          properties.get('topFaceResourceRepeat').getValue() === 'true',
-          properties.get('bottomFaceResourceRepeat').getValue() === 'true',
-        ];
-        this._facesOrientation = properties.get('facesOrientation').getValue();
-        this._backFaceUpThroughWhichAxisRotation = properties
-          .get('backFaceUpThroughWhichAxisRotation')
-          .getValue();
-        this._shouldUseTransparentTexture =
-          properties.get('enableTextureTransparency').getValue() === 'true';
+        this._faceResourceNames = ['', '', '', '', '', ''];
+        this._faceVisibilities = [true, true, true, true, true, true];
+        this._shouldRepeatTextureOnFace = [true, true, true, true, true, true];
+        this._facesOrientation = 'Y';
+        this._backFaceUpThroughWhichAxisRotation = 'X';
+        this._shouldUseTransparentTexture = false;
 
         const geometry = new THREE.BoxGeometry(1, 1, 1);
         const materials = [
-          this._getFaceMaterial(project, materialIndexToFaceIndex[0]),
-          this._getFaceMaterial(project, materialIndexToFaceIndex[1]),
-          this._getFaceMaterial(project, materialIndexToFaceIndex[2]),
-          this._getFaceMaterial(project, materialIndexToFaceIndex[3]),
-          this._getFaceMaterial(project, materialIndexToFaceIndex[4]),
-          this._getFaceMaterial(project, materialIndexToFaceIndex[5]),
+          getTransparentMaterial(),
+          getTransparentMaterial(),
+          getTransparentMaterial(),
+          getTransparentMaterial(),
+          getTransparentMaterial(),
+          getTransparentMaterial(),
         ];
         this._threeObject = new THREE.Mesh(geometry, materials);
         this._threeObject.rotation.order = 'ZYX';
-
         this._threeGroup.add(this._threeObject);
+
+        this.updateThreeObject();
       }
 
-      _getFaceMaterial(project, faceIndex) {
-        if (!this._faceVisibilities[faceIndex]) return getTransparentMaterial();
+      async _updateThreeObjectMaterials() {
+        const getFaceMaterial = async (project, faceIndex) => {
+          if (!this._faceVisibilities[faceIndex])
+            return getTransparentMaterial();
 
-        return this._pixiResourcesLoader.getThreeMaterial(
-          project,
-          this._faceResourceNames[faceIndex],
-          {
-            useTransparentTexture: this._shouldUseTransparentTexture,
-          }
-        );
+          return await this._pixiResourcesLoader.getThreeMaterial(
+            project,
+            this._faceResourceNames[faceIndex],
+            {
+              useTransparentTexture: this._shouldUseTransparentTexture,
+            }
+          );
+        };
+
+        const materials = await Promise.all([
+          getFaceMaterial(this._project, materialIndexToFaceIndex[0]),
+          getFaceMaterial(this._project, materialIndexToFaceIndex[1]),
+          getFaceMaterial(this._project, materialIndexToFaceIndex[2]),
+          getFaceMaterial(this._project, materialIndexToFaceIndex[3]),
+          getFaceMaterial(this._project, materialIndexToFaceIndex[4]),
+          getFaceMaterial(this._project, materialIndexToFaceIndex[5]),
+        ]);
+        if (this._wasDestroyed) return;
+
+        this._threeObject.material[0] = materials[0];
+        this._threeObject.material[1] = materials[1];
+        this._threeObject.material[2] = materials[2];
+        this._threeObject.material[3] = materials[3];
+        this._threeObject.material[4] = materials[4];
+        this._threeObject.material[5] = materials[5];
+
+        this._updateTextureUvMapping();
       }
 
       static _getResourceNameToDisplay(objectConfiguration) {
@@ -2386,6 +2394,15 @@ module.exports = {
       }
 
       updateThreeObject() {
+        const object = gd.castObject(
+          this._associatedObjectConfiguration,
+          gd.ObjectJsImplementation
+        );
+
+        this._defaultWidth = object.content.width;
+        this._defaultHeight = object.content.height;
+        this._defaultDepth = object.content.depth;
+
         const width = this.getWidth();
         const height = this.getHeight();
         const depth = this.getDepth();
@@ -2402,18 +2419,107 @@ module.exports = {
           RenderedInstance.toRad(this._instance.getAngle())
         );
 
+        let materialsDirty = false;
+        let uvMappingDirty = false;
+
+        const shouldUseTransparentTexture =
+          object.content.enableTextureTransparency;
+        if (this._shouldUseTransparentTexture !== shouldUseTransparentTexture) {
+          this._shouldUseTransparentTexture = shouldUseTransparentTexture;
+          materialsDirty = true;
+        }
+
+        const faceResourceNames = [
+          object.content.frontFaceResourceName,
+          object.content.backFaceResourceName,
+          object.content.leftFaceResourceName,
+          object.content.rightFaceResourceName,
+          object.content.topFaceResourceName,
+          object.content.bottomFaceResourceName,
+        ];
+        if (
+          this._faceResourceNames[0] !== faceResourceNames[0] ||
+          this._faceResourceNames[1] !== faceResourceNames[1] ||
+          this._faceResourceNames[2] !== faceResourceNames[2] ||
+          this._faceResourceNames[3] !== faceResourceNames[3] ||
+          this._faceResourceNames[4] !== faceResourceNames[4] ||
+          this._faceResourceNames[5] !== faceResourceNames[5]
+        ) {
+          this._faceResourceNames = faceResourceNames;
+          materialsDirty = true;
+        }
+
+        const faceVisibilities = [
+          object.content.frontFaceVisible,
+          object.content.backFaceVisible,
+          object.content.leftFaceVisible,
+          object.content.rightFaceVisible,
+          object.content.topFaceVisible,
+          object.content.bottomFaceVisible,
+        ];
+        if (
+          this._faceVisibilities[0] !== faceVisibilities[0] ||
+          this._faceVisibilities[1] !== faceVisibilities[1] ||
+          this._faceVisibilities[2] !== faceVisibilities[2] ||
+          this._faceVisibilities[3] !== faceVisibilities[3] ||
+          this._faceVisibilities[4] !== faceVisibilities[4] ||
+          this._faceVisibilities[5] !== faceVisibilities[5]
+        ) {
+          this._faceVisibilities = faceVisibilities;
+          materialsDirty = true;
+          uvMappingDirty = true;
+        }
+
+        const shouldRepeatTextureOnFace = [
+          object.content.frontFaceResourceRepeat,
+          object.content.backFaceResourceRepeat,
+          object.content.leftFaceResourceRepeat,
+          object.content.rightFaceResourceRepeat,
+          object.content.topFaceResourceRepeat,
+          object.content.bottomFaceResourceRepeat,
+        ];
+        if (
+          this._shouldRepeatTextureOnFace[0] !== shouldRepeatTextureOnFace[0] ||
+          this._shouldRepeatTextureOnFace[1] !== shouldRepeatTextureOnFace[1] ||
+          this._shouldRepeatTextureOnFace[2] !== shouldRepeatTextureOnFace[2] ||
+          this._shouldRepeatTextureOnFace[3] !== shouldRepeatTextureOnFace[3] ||
+          this._shouldRepeatTextureOnFace[4] !== shouldRepeatTextureOnFace[4] ||
+          this._shouldRepeatTextureOnFace[5] !== shouldRepeatTextureOnFace[5]
+        ) {
+          this._shouldRepeatTextureOnFace = shouldRepeatTextureOnFace;
+          uvMappingDirty = true;
+        }
+
+        const backFaceUpThroughWhichAxisRotation =
+          object.content.backFaceUpThroughWhichAxisRotation;
+        if (
+          backFaceUpThroughWhichAxisRotation !==
+          this._backFaceUpThroughWhichAxisRotation
+        ) {
+          this._backFaceUpThroughWhichAxisRotation = backFaceUpThroughWhichAxisRotation;
+          uvMappingDirty = true;
+        }
+
+        const facesOrientation = object.content.facesOrientation;
+        if (facesOrientation !== this._facesOrientation) {
+          this._facesOrientation = facesOrientation;
+          uvMappingDirty = true;
+        }
+
         const scaleX = width * (this._instance.isFlippedX() ? -1 : 1);
         const scaleY = height * (this._instance.isFlippedY() ? -1 : 1);
         const scaleZ = depth * (this._instance.isFlippedZ() ? -1 : 1);
-
         if (
-          scaleX !== this._threeObject.scale.width ||
-          scaleY !== this._threeObject.scale.height ||
-          scaleZ !== this._threeObject.scale.depth
+          scaleX !== this._threeObject.scale.x ||
+          scaleY !== this._threeObject.scale.y ||
+          scaleZ !== this._threeObject.scale.z
         ) {
           this._threeObject.scale.set(scaleX, scaleY, scaleZ);
-          this.updateTextureUvMapping();
+          uvMappingDirty = true;
         }
+
+        if (materialsDirty) this._updateThreeObjectMaterials();
+        if (uvMappingDirty) this._updateTextureUvMapping();
       }
 
       /**
@@ -2422,7 +2528,7 @@ module.exports = {
        * The mesh must be configured with a list of materials in order
        * for the method to work.
        */
-      updateTextureUvMapping() {
+      _updateTextureUvMapping() {
         // @ts-ignore - position is stored as a Float32BufferAttribute
         /** @type {THREE.BufferAttribute} */
         const pos = this._threeObject.geometry.getAttribute('position');
@@ -2696,25 +2802,23 @@ module.exports = {
           pixiContainer,
           pixiResourcesLoader
         );
-        const properties = associatedObjectConfiguration.getProperties();
-        this._defaultWidth = parseFloat(properties.get('width').getValue());
-        this._defaultHeight = parseFloat(properties.get('height').getValue());
-        this._defaultDepth = parseFloat(properties.get('depth').getValue());
-        const rotationX = parseFloat(properties.get('rotationX').getValue());
-        const rotationY = parseFloat(properties.get('rotationY').getValue());
-        const rotationZ = parseFloat(properties.get('rotationZ').getValue());
-        const keepAspectRatio =
-          properties.get('keepAspectRatio').getValue() === 'true';
-        const modelResourceName = properties
-          .get('modelResourceName')
-          .getValue();
-        this._originPoint = getPointForLocation(
-          properties.get('originLocation').getValue()
-        );
-        this._centerPoint = getPointForLocation(
-          properties.get('centerLocation').getValue()
+        const object = gd.castObject(
+          this._associatedObjectConfiguration,
+          gd.Model3DObjectConfiguration
         );
 
+        this._defaultWidth = object.getWidth();
+        this._defaultHeight = object.getHeight();
+        this._defaultDepth = object.getDepth();
+        const rotationX = object.getRotationX();
+        const rotationY = object.getRotationY();
+        const rotationZ = object.getRotationZ();
+        const keepAspectRatio = object.shouldKeepAspectRatio();
+        const modelResourceName = object.getModelResourceName();
+
+        this._originPoint = getPointForLocation(object.getOriginLocation());
+        this._centerPoint = getPointForLocation(object.getCenterLocation());
+
         // This renderer shows a placeholder for the object:
         this._pixiObject = new PIXI.Graphics();
         this._pixiContainer.addChild(this._pixiObject);
@@ -2722,6 +2826,7 @@ module.exports = {
         this._pixiResourcesLoader
           .get3DModel(project, modelResourceName)
           .then((model3d) => {
+            if (this._wasDestroyed) return;
             const clonedModel3D = THREE_ADDONS.SkeletonUtils.clone(
               model3d.scene
             );
@@ -2923,6 +3028,17 @@ module.exports = {
       }
     }
 
+    const isSamePoint = (point1, point2) => {
+      if (!point1 && !point2) return true;
+      if (point1 && !point2) return false;
+      if (!point1 && point2) return false;
+      return (
+        point1[0] === point2[0] &&
+        point1[1] === point2[1] &&
+        point1[2] === point2[2]
+      );
+    };
+
     const getPointForLocation = (location) => {
       switch (location) {
         case 'ModelOrigin':
@@ -2959,24 +3075,20 @@ module.exports = {
           threeGroup,
           pixiResourcesLoader
         );
-        const properties = associatedObjectConfiguration.getProperties();
-        this._defaultWidth = parseFloat(properties.get('width').getValue());
-        this._defaultHeight = parseFloat(properties.get('height').getValue());
-        this._defaultDepth = parseFloat(properties.get('depth').getValue());
-        const rotationX = parseFloat(properties.get('rotationX').getValue());
-        const rotationY = parseFloat(properties.get('rotationY').getValue());
-        const rotationZ = parseFloat(properties.get('rotationZ').getValue());
-        const keepAspectRatio =
-          properties.get('keepAspectRatio').getValue() === 'true';
-        const modelResourceName = properties
-          .get('modelResourceName')
-          .getValue();
-        this._originPoint = getPointForLocation(
-          properties.get('originLocation').getValue()
-        );
-        this._centerPoint = getPointForLocation(
-          properties.get('centerLocation').getValue()
-        );
+
+        this._defaultWidth = 1;
+        this._defaultHeight = 1;
+        this._defaultDepth = 1;
+        this._originalWidth = 1;
+        this._originalHeight = 1;
+        this._originalDepth = 1;
+        this._rotationX = 0;
+        this._rotationY = 0;
+        this._rotationZ = 0;
+        this._keepAspectRatio = false;
+
+        this._originPoint = null;
+        this._centerPoint = null;
 
         this._pixiObject = new PIXI.Graphics();
         this._pixiContainer.addChild(this._pixiObject);
@@ -2985,28 +3097,8 @@ module.exports = {
         this._threeObject.rotation.order = 'ZYX';
         this._threeGroup.add(this._threeObject);
 
-        this._pixiResourcesLoader
-          .get3DModel(project, modelResourceName)
-          .then((model3d) => {
-            const clonedModel3D = THREE_ADDONS.SkeletonUtils.clone(
-              model3d.scene
-            );
-            // This group hold the rotation defined by properties.
-            const threeObject = new THREE.Group();
-            threeObject.rotation.order = 'ZYX';
-            threeObject.add(clonedModel3D);
-            this._updateDefaultTransformation(
-              threeObject,
-              rotationX,
-              rotationY,
-              rotationZ,
-              this._defaultWidth,
-              this._defaultHeight,
-              this._defaultDepth,
-              keepAspectRatio
-            );
-            this._threeObject.add(threeObject);
-          });
+        this._threeModelGroup = null;
+        this._clonedModel3D = null;
       }
 
       getOriginX() {
@@ -3047,23 +3139,28 @@ module.exports = {
         return this._centerPoint || this._modelOriginPoint;
       }
 
-      _updateDefaultTransformation(
-        threeObject,
-        rotationX,
-        rotationY,
-        rotationZ,
-        originalWidth,
-        originalHeight,
-        originalDepth,
-        keepAspectRatio
-      ) {
-        threeObject.rotation.set(
-          (rotationX * Math.PI) / 180,
-          (rotationY * Math.PI) / 180,
-          (rotationZ * Math.PI) / 180
+      _updateDefaultTransformation() {
+        if (!this._clonedModel3D) return; // Model is not ready - nothing to do.
+
+        if (this._threeModelGroup) {
+          // Remove any previous container as we will recreate it just below
+          this._threeObject.clear();
+        }
+        // This group hold the rotation defined by properties.
+        // Always restart from a new group to avoid miscomputing bounding boxes/sizes.
+        this._threeModelGroup = new THREE.Group();
+        this._threeModelGroup.rotation.order = 'ZYX';
+        this._threeModelGroup.add(this._clonedModel3D);
+
+        this._threeModelGroup.rotation.set(
+          (this._rotationX * Math.PI) / 180,
+          (this._rotationY * Math.PI) / 180,
+          (this._rotationZ * Math.PI) / 180
+        );
+        this._threeModelGroup.updateMatrixWorld(true);
+        const boundingBox = new THREE.Box3().setFromObject(
+          this._threeModelGroup
         );
-        threeObject.updateMatrixWorld(true);
-        const boundingBox = new THREE.Box3().setFromObject(threeObject);
 
         const shouldKeepModelOrigin = !this._originPoint;
         if (shouldKeepModelOrigin) {
@@ -3090,7 +3187,7 @@ module.exports = {
         // Center the model.
         const centerPoint = this._centerPoint;
         if (centerPoint) {
-          threeObject.position.set(
+          this._threeModelGroup.position.set(
             -(boundingBox.min.x + modelWidth * centerPoint[0]),
             // The model is flipped on Y axis.
             -(boundingBox.min.y + modelHeight * (1 - centerPoint[1])),
@@ -3099,11 +3196,11 @@ module.exports = {
         }
 
         // Rotate the model.
-        threeObject.scale.set(1, 1, 1);
-        threeObject.rotation.set(
-          (rotationX * Math.PI) / 180,
-          (rotationY * Math.PI) / 180,
-          (rotationZ * Math.PI) / 180
+        this._threeModelGroup.scale.set(1, 1, 1);
+        this._threeModelGroup.rotation.set(
+          (this._rotationX * Math.PI) / 180,
+          (this._rotationY * Math.PI) / 180,
+          (this._rotationZ * Math.PI) / 180
         );
 
         // Stretch the model in a 1x1x1 cube.
@@ -3115,23 +3212,23 @@ module.exports = {
         // Flip on Y because the Y axis is on the opposite side of direct basis.
         // It avoids models to be like a mirror refection.
         scaleMatrix.makeScale(scaleX, -scaleY, scaleZ);
-        threeObject.updateMatrix();
-        threeObject.applyMatrix4(scaleMatrix);
+        this._threeModelGroup.updateMatrix();
+        this._threeModelGroup.applyMatrix4(scaleMatrix);
 
-        if (keepAspectRatio) {
+        if (this._keepAspectRatio) {
           // Reduce the object dimensions to keep aspect ratio.
           const widthRatio =
             modelWidth < epsilon
               ? Number.POSITIVE_INFINITY
-              : originalWidth / modelWidth;
+              : this._originalWidth / modelWidth;
           const heightRatio =
             modelHeight < epsilon
               ? Number.POSITIVE_INFINITY
-              : originalHeight / modelHeight;
+              : this._originalHeight / modelHeight;
           const depthRatio =
             modelDepth < epsilon
               ? Number.POSITIVE_INFINITY
-              : originalDepth / modelDepth;
+              : this._originalDepth / modelDepth;
           const minScaleRatio = Math.min(widthRatio, heightRatio, depthRatio);
           if (!Number.isFinite(minScaleRatio)) {
             this._defaultWidth = modelWidth;
@@ -3139,48 +3236,125 @@ module.exports = {
             this._defaultDepth = modelDepth;
           } else {
             if (widthRatio === minScaleRatio) {
-              this._defaultWidth = originalWidth;
+              this._defaultWidth = this._originalWidth;
               this._defaultHeight = Rendered3DInstance.applyRatio({
                 oldReferenceValue: modelWidth,
-                newReferenceValue: originalWidth,
+                newReferenceValue: this._originalWidth,
                 valueToApplyTo: modelHeight,
               });
               this._defaultDepth = Rendered3DInstance.applyRatio({
                 oldReferenceValue: modelWidth,
-                newReferenceValue: originalWidth,
+                newReferenceValue: this._originalWidth,
                 valueToApplyTo: modelDepth,
               });
             } else if (heightRatio === minScaleRatio) {
               this._defaultWidth = Rendered3DInstance.applyRatio({
                 oldReferenceValue: modelHeight,
-                newReferenceValue: originalHeight,
+                newReferenceValue: this._originalHeight,
                 valueToApplyTo: modelWidth,
               });
 
-              this._defaultHeight = originalHeight;
+              this._defaultHeight = this._originalHeight;
               this._defaultDepth = Rendered3DInstance.applyRatio({
                 oldReferenceValue: modelHeight,
-                newReferenceValue: originalHeight,
+                newReferenceValue: this._originalHeight,
                 valueToApplyTo: modelDepth,
               });
             } else {
               this._defaultWidth = Rendered3DInstance.applyRatio({
                 oldReferenceValue: modelDepth,
-                newReferenceValue: originalDepth,
+                newReferenceValue: this._originalDepth,
                 valueToApplyTo: modelWidth,
               });
               this._defaultHeight = Rendered3DInstance.applyRatio({
                 oldReferenceValue: modelDepth,
-                newReferenceValue: originalDepth,
+                newReferenceValue: this._originalDepth,
                 valueToApplyTo: modelHeight,
               });
-              this._defaultDepth = originalDepth;
+              this._defaultDepth = this._originalDepth;
             }
           }
         }
+
+        this._threeObject.add(this._threeModelGroup);
       }
 
       updateThreeObject() {
+        const object = gd.castObject(
+          this._associatedObjectConfiguration,
+          gd.Model3DObjectConfiguration
+        );
+
+        let defaultTransformationDirty = false;
+
+        const originalWidth = object.getWidth();
+        const originalHeight = object.getHeight();
+        const originalDepth = object.getDepth();
+        if (
+          this._originalWidth !== originalWidth ||
+          this._originalHeight !== originalHeight ||
+          this._originalDepth !== originalDepth
+        ) {
+          this._originalWidth = originalWidth;
+          this._originalHeight = originalHeight;
+          this._originalDepth = originalDepth;
+          defaultTransformationDirty = true;
+        }
+
+        const rotationX = object.getRotationX();
+        const rotationY = object.getRotationY();
+        const rotationZ = object.getRotationZ();
+        if (
+          this._rotationX !== rotationX ||
+          this._rotationY !== rotationY ||
+          this._rotationZ !== rotationZ
+        ) {
+          this._rotationX = rotationX;
+          this._rotationY = rotationY;
+          this._rotationZ = rotationZ;
+          defaultTransformationDirty = true;
+        }
+
+        const keepAspectRatio = object.shouldKeepAspectRatio();
+        if (this._keepAspectRatio !== keepAspectRatio) {
+          this._keepAspectRatio = keepAspectRatio;
+          defaultTransformationDirty = true;
+        }
+
+        const originPoint = getPointForLocation(object.getOriginLocation());
+        if (!isSamePoint(originPoint, this._originPoint)) {
+          this._originPoint = originPoint;
+          defaultTransformationDirty = true;
+        }
+
+        const centerPoint = getPointForLocation(object.getCenterLocation());
+        if (!isSamePoint(centerPoint, this._centerPoint)) {
+          this._centerPoint = centerPoint;
+          defaultTransformationDirty = true;
+        }
+
+        if (defaultTransformationDirty) this._updateDefaultTransformation();
+
+        const modelResourceName = object.getModelResourceName();
+        if (this._modelResourceName !== modelResourceName) {
+          this._modelResourceName = modelResourceName;
+
+          this._pixiResourcesLoader
+            .get3DModel(this._project, modelResourceName)
+            .then((model3d) => {
+              if (this._wasDestroyed) return;
+              this._clonedModel3D = THREE_ADDONS.SkeletonUtils.clone(
+                model3d.scene
+              );
+
+              this._updateDefaultTransformation();
+            });
+        }
+
+        this._updateThreeObjectPosition();
+      }
+
+      _updateThreeObjectPosition() {
         const width = this.getWidth();
         const height = this.getHeight();
         const depth = this.getDepth();
@@ -3204,9 +3378,9 @@ module.exports = {
         const scaleZ = depth * (this._instance.isFlippedZ() ? -1 : 1);
 
         if (
-          scaleX !== this._threeObject.scale.width ||
-          scaleY !== this._threeObject.scale.height ||
-          scaleZ !== this._threeObject.scale.depth
+          scaleX !== this._threeObject.scale.x ||
+          scaleY !== this._threeObject.scale.y ||
+          scaleZ !== this._threeObject.scale.z
         ) {
           this._threeObject.scale.set(scaleX, scaleY, scaleZ);
         }

Extensions/3D/LinearFog.ts

@@ -76,7 +76,7 @@ namespace gdjs {
           updateStringParameter(parameterName: string, value: string): void {
             if (parameterName === 'color') {
               this.fog.color = new THREE.Color(
-                gdjs.PixiFiltersTools.rgbOrHexToHexNumber(value)
+                gdjs.rgbOrHexStringToNumber(value)
               );
             }
           }

Extensions/3D/Model3DObjectConfiguration.cpp

@@ -109,23 +109,26 @@ Model3DObjectConfiguration::GetProperties() const {
   objectProperties["rotationX"]
       .SetValue(gd::String::From(rotationX))
       .SetType("number")
-      .SetLabel(_("Rotation around X axis"))
+      .SetLabel(_("X"))
+      .SetDescription(_("Rotation around X axis"))
       .SetMeasurementUnit(gd::MeasurementUnit::GetDegreeAngle())
-      .SetGroup(_("Default orientation"));
+      .SetGroup(_("Default rotation"));
 
   objectProperties["rotationY"]
       .SetValue(gd::String::From(rotationY))
       .SetType("number")
-      .SetLabel(_("Rotation around Y axis"))
+      .SetLabel(_("Y"))
+      .SetDescription(_("Rotation around Y axis"))
       .SetMeasurementUnit(gd::MeasurementUnit::GetDegreeAngle())
-      .SetGroup(_("Default orientation"));
+      .SetGroup(_("Default rotation"));
 
   objectProperties["rotationZ"]
       .SetValue(gd::String::From(rotationZ))
       .SetType("number")
-      .SetLabel(_("Rotation around Z axis"))
+      .SetLabel(_("Z"))
+      .SetDescription(_("Rotation around Z axis"))
       .SetMeasurementUnit(gd::MeasurementUnit::GetDegreeAngle())
-      .SetGroup(_("Default orientation"));
+      .SetGroup(_("Default rotation"));
 
   objectProperties["modelResourceName"]
       .SetValue(modelResourceName)
@@ -139,7 +142,7 @@ Model3DObjectConfiguration::GetProperties() const {
       .AddExtraInfo("Basic")
       .AddExtraInfo("StandardWithoutMetalness")
       .AddExtraInfo("KeepOriginal")
-      .SetLabel(_("Material modifier"));
+      .SetLabel(_("Material"));
 
   objectProperties["originLocation"]
       .SetValue(originLocation.empty() ? "TopLeft" : originLocation)
@@ -149,7 +152,9 @@ Model3DObjectConfiguration::GetProperties() const {
       .AddExtraInfo("ObjectCenter")
       .AddExtraInfo("BottomCenterZ")
       .AddExtraInfo("BottomCenterY")
-      .SetLabel(_("Origin point"));
+      .SetLabel(_("Origin point"))
+      .SetGroup(_("Points"))
+      .SetAdvanced(true);
 
   objectProperties["centerLocation"]
       .SetValue(centerLocation.empty() ? "ObjectCenter" : centerLocation)
@@ -158,7 +163,9 @@ Model3DObjectConfiguration::GetProperties() const {
       .AddExtraInfo("ObjectCenter")
       .AddExtraInfo("BottomCenterZ")
       .AddExtraInfo("BottomCenterY")
-      .SetLabel(_("Center point"));
+      .SetLabel(_("Center point"))
+      .SetGroup(_("Points"))
+      .SetAdvanced(true);
 
   return objectProperties;
 }

Extensions/3D/Model3DObjectConfiguration.h

@@ -140,7 +140,25 @@ public:
   const std::vector<Model3DAnimation> &GetAllAnimations() const {
     return animations;
   }
+  ///@}
 
+  /** \name Getters
+   * Fast access for rendering instances.
+   */
+  ///@{
+  double GetWidth() const { return width; };
+  double GetHeight() const { return height; };
+  double GetDepth() const { return depth; };
+  double GetRotationX() const { return rotationX; };
+  double GetRotationY() const { return rotationY; };
+  double GetRotationZ() const { return rotationZ; };
+
+  const gd::String& GetModelResourceName() const { return modelResourceName; };
+  const gd::String& GetMaterialType() const { return materialType; };
+  const gd::String& GetOriginLocation() const { return originLocation; };
+  const gd::String& GetCenterLocation() const { return centerLocation; };
+
+  bool shouldKeepAspectRatio() const { return keepAspectRatio; };
   ///@}
 
 protected:

Extensions/3D/Model3DRuntimeObject.ts

@@ -376,6 +376,9 @@ namespace gdjs {
 
     setAnimationElapsedTime(time: float): void {
       this._renderer.setAnimationElapsedTime(time);
+      if (!this._animationPaused) {
+        this._renderer.resumeAnimation();
+      }
     }
 
     getAnimationDuration(): float {

Extensions/AdvancedWindow/electron-advancedwindowtools.ts

@@ -7,15 +7,18 @@ namespace gdjs {
   export namespace evtTools {
     export namespace advancedWindow {
       const getElectronBrowserWindow = (runtimeScene: gdjs.RuntimeScene) => {
-        const electronRemote = runtimeScene
-          .getGame()
-          .getRenderer()
-          .getElectronRemote();
-        if (electronRemote) {
-          return electronRemote.getCurrentWindow();
+        try {
+          const electronRemote = runtimeScene
+            .getGame()
+            .getRenderer()
+            .getElectronRemote();
+          if (electronRemote) {
+            return electronRemote.getCurrentWindow();
+          }
+          return null;
+        } catch (error) {
+          return null;
         }
-
-        return null;
       };
 
       export const focus = function (

Extensions/AnchorBehavior/AnchorBehavior.cpp

@@ -75,7 +75,7 @@ std::map<gd::String, gd::PropertyDescriptor> AnchorBehavior::GetProperties(
       .AddExtraInfo(_("Window center"))
       .AddExtraInfo(_("Window right"))
       .AddExtraInfo(_("Proportional"))
-      .SetLabel(_("Left edge anchor"))
+      .SetLabel(_("Left edge"))
       .SetDescription(_("Anchor the left edge of the object on X axis."));
 
   properties["rightEdgeAnchor"]
@@ -87,7 +87,7 @@ std::map<gd::String, gd::PropertyDescriptor> AnchorBehavior::GetProperties(
       .AddExtraInfo(_("Window center"))
       .AddExtraInfo(_("Window right"))
       .AddExtraInfo(_("Proportional"))
-      .SetLabel(_("Right edge anchor"))
+      .SetLabel(_("Right edge"))
       .SetDescription(_("Anchor the right edge of the object on X axis."));
 
   properties["topEdgeAnchor"]
@@ -99,7 +99,7 @@ std::map<gd::String, gd::PropertyDescriptor> AnchorBehavior::GetProperties(
       .AddExtraInfo(_("Window center"))
       .AddExtraInfo(_("Window bottom"))
       .AddExtraInfo(_("Proportional"))
-      .SetLabel(_("Top edge anchor"))
+      .SetLabel(_("Top edge"))
       .SetDescription(_("Anchor the top edge of the object on Y axis."));
 
   properties["bottomEdgeAnchor"]
@@ -111,7 +111,7 @@ std::map<gd::String, gd::PropertyDescriptor> AnchorBehavior::GetProperties(
       .AddExtraInfo(_("Window center"))
       .AddExtraInfo(_("Window bottom"))
       .AddExtraInfo(_("Proportional"))
-      .SetLabel(_("Bottom edge anchor"))
+      .SetLabel(_("Bottom edge"))
       .SetDescription(_("Anchor the bottom edge of the object on Y axis."));
 
   properties["useLegacyBottomAndRightAnchors"]
@@ -119,12 +119,12 @@ std::map<gd::String, gd::PropertyDescriptor> AnchorBehavior::GetProperties(
           "Stretch object when anchoring right or bottom edge (deprecated, "
           "it's recommended to leave this unchecked and anchor both sides if "
           "you want Sprite to stretch instead.)"))
-      .SetGroup(_("Deprecated options (advanced)"))
       .SetValue(behaviorContent.GetBoolAttribute(
                     "useLegacyBottomAndRightAnchors", true)
                     ? "true"
                     : "false")
-      .SetType("Boolean");
+      .SetType("Boolean")
+      .SetDeprecated(true);
 
   return properties;
 }

Extensions/AnchorBehavior/anchorruntimebehavior.ts

@@ -88,7 +88,6 @@ namespace gdjs {
       const workingPoint: FloatPoint = gdjs.staticArray(
         gdjs.AnchorRuntimeBehavior.prototype.doStepPreEvents
       ) as FloatPoint;
-      // TODO EBO Make it work with event based objects or hide this behavior for them.
       let parentMinX = instanceContainer.getUnrotatedViewportMinX();
       let parentMinY = instanceContainer.getUnrotatedViewportMinY();
       let parentMaxX = instanceContainer.getUnrotatedViewportMaxX();
@@ -111,10 +110,11 @@ namespace gdjs {
         }
 
         //Calculate the distances from the window's bounds.
-        const topLeftPixel = layer.convertCoords(
+        const topLeftPixel = this._convertCoords(
+          instanceContainer,
+          layer,
           this.owner.getDrawableX(),
           this.owner.getDrawableY(),
-          0,
           workingPoint
         );
 
@@ -141,10 +141,11 @@ namespace gdjs {
         }
 
         // It's fine to reuse workingPoint as topLeftPixel is no longer used.
-        const bottomRightPixel = layer.convertCoords(
+        const bottomRightPixel = this._convertCoords(
+          instanceContainer,
+          layer,
           this.owner.getDrawableX() + this.owner.getWidth(),
           this.owner.getDrawableY() + this.owner.getHeight(),
-          0,
           workingPoint
         );
 
@@ -225,19 +226,21 @@ namespace gdjs {
         }
 
         // It's fine to reuse workingPoint as topLeftPixel is no longer used.
-        const topLeftCoord = layer.convertInverseCoords(
+        const topLeftCoord = this._convertInverseCoords(
+          instanceContainer,
+          layer,
           leftPixel,
           topPixel,
-          0,
           workingPoint
         );
         const left = topLeftCoord[0];
         const top = topLeftCoord[1];
 
-        const bottomRightCoord = layer.convertInverseCoords(
+        const bottomRightCoord = this._convertInverseCoords(
+          instanceContainer,
+          layer,
           rightPixel,
           bottomPixel,
-          0,
           workingPoint
         );
         const right = bottomRightCoord[0];
@@ -270,8 +273,20 @@ namespace gdjs {
             this._rightEdgeAnchor !== HorizontalAnchor.None &&
             this._leftEdgeAnchor !== HorizontalAnchor.None
           ) {
-            this.owner.setWidth(right - left);
-            this.owner.setX(left);
+            const width = right - left;
+            this.owner.setX(
+              this.owner.getX() === this.owner.getDrawableX()
+                ? left
+                : // It uses the position of the origin relatively to the object
+                  // size to apply it with the new size.
+                  // This is the same as doing:
+                  // lerp(left, right, (this.owner.getX() - this.owner.getDrawableX() / this.owner.getWidth())
+                  // But, the division is done at the end to avoid rounding errors.
+                  left +
+                    ((this.owner.getX() - this.owner.getDrawableX()) * width) /
+                      this.owner.getWidth()
+            );
+            this.owner.setWidth(width);
           } else {
             if (this._leftEdgeAnchor !== HorizontalAnchor.None) {
               this.owner.setX(
@@ -292,8 +307,15 @@ namespace gdjs {
             this._bottomEdgeAnchor !== VerticalAnchor.None &&
             this._topEdgeAnchor !== VerticalAnchor.None
           ) {
-            this.owner.setHeight(bottom - top);
-            this.owner.setY(top);
+            const height = bottom - top;
+            this.owner.setY(
+              this.owner.getY() === this.owner.getDrawableY()
+                ? top
+                : top +
+                    ((this.owner.getY() - this.owner.getDrawableY()) * height) /
+                      this.owner.getHeight()
+            );
+            this.owner.setHeight(height);
           } else {
             if (this._topEdgeAnchor !== VerticalAnchor.None) {
               this.owner.setY(
@@ -314,6 +336,40 @@ namespace gdjs {
     }
 
     doStepPostEvents(instanceContainer: gdjs.RuntimeInstanceContainer) {}
+
+    private _convertCoords(
+      instanceContainer: gdjs.RuntimeInstanceContainer,
+      layer: gdjs.RuntimeLayer,
+      x: float,
+      y: float,
+      result: FloatPoint
+    ) {
+      const isParentACustomObject =
+        instanceContainer !== instanceContainer.getScene();
+      if (isParentACustomObject) {
+        result[0] = x;
+        result[1] = y;
+        return result;
+      }
+      return layer.convertCoords(x, y, 0, result);
+    }
+
+    private _convertInverseCoords(
+      instanceContainer: gdjs.RuntimeInstanceContainer,
+      layer: gdjs.RuntimeLayer,
+      x: float,
+      y: float,
+      result: FloatPoint
+    ) {
+      const isParentACustomObject =
+        instanceContainer !== instanceContainer.getScene();
+      if (isParentACustomObject) {
+        result[0] = x;
+        result[1] = y;
+        return result;
+      }
+      return layer.convertInverseCoords(x, y, 0, result);
+    }
   }
   gdjs.registerBehavior(
     'AnchorBehavior::AnchorBehavior',

Extensions/AnchorBehavior/tests/anchorruntimebehavior.spec.js

@@ -70,6 +70,50 @@ describe('gdjs.AnchorRuntimeBehavior', function () {
     return object;
   }
 
+  const createSpriteWithOriginAtCenter = (behaviorProperties) => {
+    const object = new gdjs.TestSpriteRuntimeObject(runtimeScene, {
+      name: 'obj1',
+      type: '',
+      behaviors: [
+        {
+          name: anchorBehaviorName,
+          type: 'AnchorBehavior::AnchorBehavior',
+          // @ts-ignore - properties are not typed
+          rightEdgeAnchor: 0,
+          leftEdgeAnchor: 0,
+          topEdgeAnchor: 0,
+          bottomEdgeAnchor: 0,
+          relativeToOriginalWindowSize: false,
+          useLegacyBottomAndRightAnchors: false,
+          ...behaviorProperties,
+        },
+      ],
+      effects: [],
+      animations: [
+        {
+          name: 'animation',
+          directions: [
+            {
+              sprites: [
+                {
+                  originPoint: { x: 50, y: 50 },
+                  centerPoint: { x: 50, y: 50 },
+                  points: [],
+                  hasCustomCollisionMask: false,
+                  customCollisionMask: [],
+                },
+              ],
+            },
+          ],
+        },
+      ],
+    });
+    object.setUnscaledWidthAndHeight(100, 100);
+    object.setCustomWidthAndHeight(10, 10);
+    runtimeScene.addObject(object);
+    return object;
+  };
+
   describe('(anchor horizontal edge)', function () {
     ['rightEdgeAnchor', 'leftEdgeAnchor'].forEach((objectEdge) => {
       it(`anchors the ${objectEdge} edge of object to window left (fixed)`, function () {
@@ -200,5 +244,47 @@ describe('gdjs.AnchorRuntimeBehavior', function () {
       expect(object.getY()).to.equal(1000);
       expect(object.getWidth()).to.equal(10);
     });
+
+    it('can fill the screen with an object (with custom origin)', function () {
+      setGameResolutionSizeAndStep(1000, 500);
+
+      const object = createSpriteWithOriginAtCenter({
+        leftEdgeAnchor: 1,
+        topEdgeAnchor: 1,
+        rightEdgeAnchor: 2,
+        bottomEdgeAnchor: 2,
+      });
+      object.setCustomWidthAndHeight(1000, 500);
+      object.setPosition(500, 250);
+      runtimeScene.renderAndStep(1000 / 60);
+
+      setGameResolutionSizeAndStep(2000, 3000);
+
+      expect(object.getX()).to.equal(1000);
+      expect(object.getY()).to.equal(1500);
+      expect(object.getWidth()).to.equal(2000);
+      expect(object.getHeight()).to.equal(3000);
+    });
+
+    it('can fill the screen with an object using proportional anchors (with custom origin)', () => {
+      setGameResolutionSizeAndStep(1000, 500);
+
+      const object = createSpriteWithOriginAtCenter({
+        leftEdgeAnchor: 3,
+        topEdgeAnchor: 3,
+        rightEdgeAnchor: 3,
+        bottomEdgeAnchor: 3,
+      });
+      object.setCustomWidthAndHeight(1000, 500);
+      object.setPosition(500, 250);
+      runtimeScene.renderAndStep(1000 / 60);
+
+      setGameResolutionSizeAndStep(2000, 3000);
+
+      expect(object.getX()).to.equal(1000);
+      expect(object.getY()).to.equal(1500);
+      expect(object.getWidth()).to.equal(2000);
+      expect(object.getHeight()).to.equal(3000);
+    });
   });
 });

Extensions/BBText/JsExtension.js

@@ -34,11 +34,8 @@ module.exports = {
       .setIcon('JsPlatform/Extensions/bbcode32.png');
 
     var objectBBText = new gd.ObjectJsImplementation();
-    objectBBText.updateProperty = function (
-      objectContent,
-      propertyName,
-      newValue
-    ) {
+    objectBBText.updateProperty = function (propertyName, newValue) {
+      const objectContent = this.content;
       if (propertyName in objectContent) {
         if (typeof objectContent[propertyName] === 'boolean')
           objectContent[propertyName] = newValue === '1';
@@ -50,8 +47,9 @@ module.exports = {
 
       return false;
     };
-    objectBBText.getProperties = function (objectContent) {
+    objectBBText.getProperties = function () {
       const objectProperties = new gd.MapStringPropertyDescriptor();
+      const objectContent = this.content;
 
       objectProperties
         .getOrCreate('text')
@@ -107,29 +105,26 @@ module.exports = {
 
       return objectProperties;
     };
-    objectBBText.setRawJSONContent(
-      JSON.stringify({
-        text:
-          '[b]bold[/b] [i]italic[/i] [size=15]smaller[/size] [font=times]times[/font] font\n[spacing=12]spaced out[/spacing]\n[outline=yellow]outlined[/outline] [shadow=red]DropShadow[/shadow] ',
-        opacity: 255,
-        fontSize: 20,
-        visible: true,
-        color: '0;0;0',
-        fontFamily: 'Arial',
-        align: 'left',
-        wordWrap: true,
-      })
-    );
+    objectBBText.content = {
+      text:
+        '[b]bold[/b] [i]italic[/i] [size=15]smaller[/size] [font=times]times[/font] font\n[spacing=12]spaced out[/spacing]\n[outline=yellow]outlined[/outline] [shadow=red]DropShadow[/shadow] ',
+      opacity: 255,
+      fontSize: 20,
+      visible: true,
+      color: '0;0;0',
+      fontFamily: 'Arial',
+      align: 'left',
+      wordWrap: true,
+    };
 
     objectBBText.updateInitialInstanceProperty = function (
-      objectContent,
       instance,
       propertyName,
       newValue
     ) {
       return false;
     };
-    objectBBText.getInitialInstanceProperties = function (content, instance) {
+    objectBBText.getInitialInstanceProperties = function (instance) {
       var instanceProperties = new gd.MapStringPropertyDescriptor();
       return instanceProperties;
     };
@@ -531,22 +526,33 @@ module.exports = {
        * This is called to update the PIXI object on the scene editor
        */
       update() {
-        const properties = this._associatedObjectConfiguration.getProperties();
+        const object = gd.castObject(
+          this._associatedObjectConfiguration,
+          gd.ObjectJsImplementation
+        );
 
-        const rawText = properties.get('text').getValue();
+        const rawText = object.content.text;
         if (rawText !== this._pixiObject.text) {
           this._pixiObject.text = rawText;
         }
 
-        const color = properties.get('color').getValue();
-        this._pixiObject.textStyles.default.fill = objectsRenderingService.rgbOrHexToHexNumber(
-          color
-        );
+        const color = object.content.color;
+        const newColor = objectsRenderingService.rgbOrHexToHexNumber(color);
+        if (newColor !== this._pixiObject.textStyles.default.fill) {
+          this._pixiObject.textStyles.default.fill = newColor;
+          this._pixiObject.dirty = true;
+        }
 
-        const fontSize = properties.get('fontSize').getValue();
-        this._pixiObject.textStyles.default.fontSize = `${fontSize}px`;
+        const fontSize = object.content.fontSize;
+        const newDefaultFontsize = `${fontSize}px`;
+        if (
+          newDefaultFontsize !== this._pixiObject.textStyles.default.fontSize
+        ) {
+          this._pixiObject.textStyles.default.fontSize = `${fontSize}px`;
+          this._pixiObject.dirty = true;
+        }
 
-        const fontResourceName = properties.get('fontFamily').getValue();
+        const fontResourceName = object.content.fontFamily;
 
         if (this._fontResourceName !== fontResourceName) {
           this._fontResourceName = fontResourceName;
@@ -567,13 +573,13 @@ module.exports = {
             });
         }
 
-        const wordWrap = properties.get('wordWrap').getValue() === 'true';
+        const wordWrap = object.content.wordWrap;
         if (wordWrap !== this._pixiObject._style.wordWrap) {
           this._pixiObject._style.wordWrap = wordWrap;
           this._pixiObject.dirty = true;
         }
 
-        const align = properties.get('align').getValue();
+        const align = object.content.align;
         if (align !== this._pixiObject._style.align) {
           this._pixiObject._style.align = align;
           this._pixiObject.dirty = true;

Extensions/BitmapText/JsExtension.js

@@ -34,11 +34,8 @@ module.exports = {
       .setIcon('JsPlatform/Extensions/bitmapfont32.png');
 
     const bitmapTextObject = new gd.ObjectJsImplementation();
-    bitmapTextObject.updateProperty = function (
-      objectContent,
-      propertyName,
-      newValue
-    ) {
+    bitmapTextObject.updateProperty = function (propertyName, newValue) {
+      const objectContent = this.content;
       if (propertyName in objectContent) {
         if (typeof objectContent[propertyName] === 'boolean')
           objectContent[propertyName] = newValue === '1';
@@ -50,8 +47,9 @@ module.exports = {
 
       return false;
     };
-    bitmapTextObject.getProperties = function (objectContent) {
+    bitmapTextObject.getProperties = function () {
       const objectProperties = new gd.MapStringPropertyDescriptor();
+      const objectContent = this.content;
 
       objectProperties
         .getOrCreate('text')
@@ -66,7 +64,7 @@ module.exports = {
         .addExtraInfo('left')
         .addExtraInfo('center')
         .addExtraInfo('right')
-        .setLabel(_('Alignment, when multiple lines are displayed'))
+        .setLabel(_('Alignment'))
         .setGroup(_('Appearance'));
 
       objectProperties
@@ -82,7 +80,7 @@ module.exports = {
         .setValue(objectContent.textureAtlasResourceName)
         .setType('resource')
         .addExtraInfo('image')
-        .setLabel(_('Bitmap atlas image'))
+        .setLabel(_('Bitmap Atlas'))
         .setGroup(_('Font'));
 
       objectProperties
@@ -108,33 +106,27 @@ module.exports = {
 
       return objectProperties;
     };
-    bitmapTextObject.setRawJSONContent(
-      JSON.stringify({
-        text:
-          'This text use the default bitmap font.\nUse a custom Bitmap Font to create your own texts.',
-        opacity: 255,
-        scale: 1,
-        fontSize: 20,
-        tint: '255;255;255',
-        bitmapFontResourceName: '',
-        textureAtlasResourceName: '',
-        align: 'left',
-        wordWrap: true,
-      })
-    );
+    bitmapTextObject.content = {
+      text:
+        'This text use the default bitmap font.\nUse a custom Bitmap Font to create your own texts.',
+      opacity: 255,
+      scale: 1,
+      fontSize: 20,
+      tint: '255;255;255',
+      bitmapFontResourceName: '',
+      textureAtlasResourceName: '',
+      align: 'left',
+      wordWrap: true,
+    };
 
     bitmapTextObject.updateInitialInstanceProperty = function (
-      objectContent,
       instance,
       propertyName,
       newValue
     ) {
       return false;
     };
-    bitmapTextObject.getInitialInstanceProperties = function (
-      content,
-      instance
-    ) {
+    bitmapTextObject.getInitialInstanceProperties = function (instance) {
       var instanceProperties = new gd.MapStringPropertyDescriptor();
       return instanceProperties;
     };
@@ -659,31 +651,31 @@ module.exports = {
       }
 
       update() {
-        const properties = this._associatedObjectConfiguration.getProperties();
+        const object = gd.castObject(
+          this._associatedObjectConfiguration,
+          gd.ObjectJsImplementation
+        );
 
         // Update the rendered text properties (note: Pixi is only
         // applying changes if there were changed).
-        const rawText = properties.get('text').getValue();
+        const rawText = object.content.text;
         this._pixiObject.text = rawText;
 
-        const align = properties.get('align').getValue();
+        const align = object.content.align;
         this._pixiObject.align = align;
 
-        const color = properties.get('tint').getValue();
+        const color = object.content.tint;
         this._pixiObject.tint = objectsRenderingService.rgbOrHexToHexNumber(
           color
         );
 
-        const scale = +(properties.get('scale').getValue() || 1);
+        const scale = object.content.scale;
         this._pixiObject.scale.set(scale);
 
         // Track the changes in font to load the new requested font.
-        const bitmapFontResourceName = properties
-          .get('bitmapFontResourceName')
-          .getValue();
-        const textureAtlasResourceName = properties
-          .get('textureAtlasResourceName')
-          .getValue();
+        const bitmapFontResourceName = object.content.bitmapFontResourceName;
+        const textureAtlasResourceName =
+          object.content.textureAtlasResourceName;
 
         if (
           this._currentBitmapFontResourceName !== bitmapFontResourceName ||
@@ -705,6 +697,8 @@ module.exports = {
             this._currentBitmapFontResourceName,
             this._currentTextureAtlasResourceName
           ).then((bitmapFont) => {
+            if (this._wasDestroyed) return;
+
             this._pixiObject.fontName = bitmapFont.font;
             this._pixiObject.fontSize = bitmapFont.size;
             this._pixiObject.dirty = true;
@@ -712,7 +706,7 @@ module.exports = {
         }
 
         // Set up the wrapping width if enabled.
-        const wordWrap = properties.get('wordWrap').getValue() === 'true';
+        const wordWrap = object.content.wordWrap;
         if (wordWrap && this._instance.hasCustomSize()) {
           this._pixiObject.maxWidth =
             this.getCustomWidth() / this._pixiObject.scale.x;

Extensions/DestroyOutsideBehavior/DestroyOutsideBehavior.cpp

@@ -26,7 +26,8 @@ DestroyOutsideBehavior::GetProperties(
           behaviorContent.GetDoubleAttribute("extraBorder", 0)))
       .SetType("Number")
       .SetMeasurementUnit(gd::MeasurementUnit::GetPixel())
-      .SetLabel(_("Margin before deleting the object, in pixels"));
+      .SetLabel(_("Deletion margin"))
+      .SetDescription(_("Margin before deleting the object, in pixels"));
 
   return properties;
 }

Extensions/DraggableBehavior/DraggableBehavior.cpp

@@ -26,7 +26,7 @@ std::map<gd::String, gd::PropertyDescriptor> DraggableBehavior::GetProperties(
                     ? "true"
                     : "false")
       .SetType("Boolean")
-      .SetLabel(_("Do a precision check against the object's collision mask"))
+      .SetLabel(_("Precise check"))
       .SetDescription(
           _("Use the object (custom) collision mask instead of the bounding "
             "box, making the behavior more precise at the cost of "

Extensions/Effects/bevel-pixi-filter.ts

@@ -67,14 +67,10 @@ namespace gdjs {
         const bevelFilter = (filter as unknown) as PIXI.filters.BevelFilter &
           BevelFilterExtra;
         if (parameterName === 'lightColor') {
-          bevelFilter.lightColor = gdjs.PixiFiltersTools.rgbOrHexToHexNumber(
-            value
-          );
+          bevelFilter.lightColor = gdjs.rgbOrHexStringToNumber(value);
         }
         if (parameterName === 'shadowColor') {
-          bevelFilter.shadowColor = gdjs.PixiFiltersTools.rgbOrHexToHexNumber(
-            value
-          );
+          bevelFilter.shadowColor = gdjs.rgbOrHexStringToNumber(value);
         }
       }
       updateColorParameter(

Extensions/Effects/color-replace-pixi-filter.ts

@@ -45,13 +45,9 @@ namespace gdjs {
         const colorReplaceFilter = (filter as unknown) as PIXI.filters.ColorReplaceFilter &
           ColorReplaceFilterExtra;
         if (parameterName === 'originalColor') {
-          colorReplaceFilter.originalColor = gdjs.PixiFiltersTools.rgbOrHexToHexNumber(
-            value
-          );
+          colorReplaceFilter.originalColor = gdjs.rgbOrHexStringToNumber(value);
         } else if (parameterName === 'newColor') {
-          colorReplaceFilter.newColor = gdjs.PixiFiltersTools.rgbOrHexToHexNumber(
-            value
-          );
+          colorReplaceFilter.newColor = gdjs.rgbOrHexStringToNumber(value);
         }
       }
       updateColorParameter(

Extensions/Effects/drop-shadow-pixi-filter.ts

@@ -66,9 +66,7 @@ namespace gdjs {
       ) {
         const dropShadowFilter = (filter as unknown) as PIXI.filters.DropShadowFilter;
         if (parameterName === 'color') {
-          dropShadowFilter.color = gdjs.PixiFiltersTools.rgbOrHexToHexNumber(
-            value
-          );
+          dropShadowFilter.color = gdjs.rgbOrHexStringToNumber(value);
         }
       }
       updateColorParameter(

Extensions/Effects/glow-pixi-filter.ts

@@ -53,7 +53,7 @@ namespace gdjs {
         const glowFilter = (filter as unknown) as PIXI.filters.GlowFilter &
           GlowFilterExtra;
         if (parameterName === 'color') {
-          glowFilter.color = gdjs.PixiFiltersTools.rgbOrHexToHexNumber(value);
+          glowFilter.color = gdjs.rgbOrHexStringToNumber(value);
         }
       }
       updateColorParameter(

Extensions/Effects/outline-pixi-filter.ts

@@ -41,9 +41,7 @@ namespace gdjs {
       ) {
         const outlineFilter = (filter as unknown) as PIXI.filters.OutlineFilter;
         if (parameterName === 'color') {
-          outlineFilter.color = gdjs.PixiFiltersTools.rgbOrHexToHexNumber(
-            value
-          );
+          outlineFilter.color = gdjs.rgbOrHexStringToNumber(value);
         }
       }
       updateColorParameter(

Extensions/ExampleJsExtension/JsExtension.js

@@ -287,11 +287,9 @@ module.exports = {
     // Everything that is stored inside the object is in "content" and is automatically
     // saved/loaded to JSON.
     var dummyObject = new gd.ObjectJsImplementation();
-    dummyObject.updateProperty = function (
-      objectContent,
-      propertyName,
-      newValue
-    ) {
+    dummyObject.updateProperty = function (propertyName, newValue) {
+      const objectContent = this.content;
+
       if (propertyName === 'My first property') {
         objectContent.property1 = newValue;
         return true;
@@ -311,8 +309,9 @@ module.exports = {
 
       return false;
     };
-    dummyObject.getProperties = function (objectContent) {
+    dummyObject.getProperties = function () {
       var objectProperties = new gd.MapStringPropertyDescriptor();
+      const objectContent = this.content;
 
       objectProperties
         .getOrCreate('My first property')
@@ -336,17 +335,14 @@ module.exports = {
 
       return objectProperties;
     };
-    dummyObject.setRawJSONContent(
-      JSON.stringify({
-        property1: 'Hello world',
-        property2: true,
-        property3: 123,
-        myImage: '',
-      })
-    );
+    dummyObject.content = {
+      property1: 'Hello world',
+      property2: true,
+      property3: 123,
+      myImage: '',
+    };
 
     dummyObject.updateInitialInstanceProperty = function (
-      objectContent,
       instance,
       propertyName,
       newValue
@@ -362,7 +358,7 @@ module.exports = {
 
       return false;
     };
-    dummyObject.getInitialInstanceProperties = function (content, instance) {
+    dummyObject.getInitialInstanceProperties = function (instance) {
       var instanceProperties = new gd.MapStringPropertyDescriptor();
 
       instanceProperties
@@ -507,12 +503,13 @@ module.exports = {
        * This is called to update the PIXI object on the scene editor
        */
       update() {
+        const object = gd.castObject(
+          this._associatedObjectConfiguration,
+          gd.ObjectJsImplementation
+        );
+
         // Read a property from the object
-        const property1Value = this._associatedObjectConfiguration
-          .getProperties()
-          .get('My first property')
-          .getValue();
-        this._pixiObject.text = property1Value;
+        this._pixiObject.text = object.content.property1;
 
         // Read position and angle from the instance
         this._pixiObject.position.x =

Extensions/JsExtensionTypes.d.ts

@@ -14,9 +14,12 @@ class RenderedInstance {
   _associatedObjectConfiguration: gd.ObjectConfiguration;
   _pixiContainer: PIXI.Container;
   _pixiResourcesLoader: Class<PixiResourcesLoader>;
-  _pixiObject: PIXI.DisplayObject;
+  _pixiObject: PIXI.DisplayObject | null;
   wasUsed: boolean;
 
+  /** Set to true when onRemovedFromScene is called. Allows to cancel promises/asynchronous operations (notably: waiting for a resource load). */
+  _wasDestroyed: boolean;
+
   constructor(
     project: gdProject,
     instance: gdInitialInstance,
@@ -89,10 +92,13 @@ class Rendered3DInstance {
   _pixiContainer: PIXI.Container;
   _threeGroup: THREE.Group;
   _pixiResourcesLoader: Class<PixiResourcesLoader>;
-  _pixiObject: PIXI.DisplayObject;
+  _pixiObject: PIXI.DisplayObject | null;
   _threeObject: THREE.Object3D | null;
   wasUsed: boolean;
 
+  /** Set to true when onRemovedFromScene is called. Allows to cancel promises/asynchronous operations (notably: waiting for a resource load). */
+  _wasDestroyed: boolean;
+
   constructor(
     project: gdProject,
     instance: gdInitialInstance,

Extensions/Leaderboards/leaderboardstools.ts

@@ -588,7 +588,7 @@ namespace gdjs {
             break;
           case 'openPlayerAuthentication':
             gdjs.playerAuthentication
-              .openAuthenticationWindow(runtimeScene)
+              .openAuthenticationWindow(runtimeScene, event.data.options)
               .promise.then(({ status }) => {
                 if (
                   !_leaderboardViewIframe ||

Extensions/Lighting/JsExtension.js

@@ -68,11 +68,8 @@ module.exports = {
 
     const lightObject = new gd.ObjectJsImplementation();
 
-    lightObject.updateProperty = function (
-      objectContent,
-      propertyName,
-      newValue
-    ) {
+    lightObject.updateProperty = function (propertyName, newValue) {
+      const objectContent = this.content;
       if (propertyName === 'radius') {
         objectContent.radius = parseFloat(newValue);
         return true;
@@ -96,8 +93,9 @@ module.exports = {
       return false;
     };
 
-    lightObject.getProperties = function (objectContent) {
+    lightObject.getProperties = function () {
       const objectProperties = new gd.MapStringPropertyDescriptor();
+      const objectContent = this.content;
 
       objectProperties.set(
         'radius',
@@ -140,17 +138,14 @@ module.exports = {
 
       return objectProperties;
     };
-    lightObject.setRawJSONContent(
-      JSON.stringify({
-        radius: 50,
-        color: '255;255;255',
-        debugMode: false,
-        texture: '',
-      })
-    );
+    lightObject.content = {
+      radius: 50,
+      color: '255;255;255',
+      debugMode: false,
+      texture: '',
+    };
 
     lightObject.updateInitialInstanceProperty = function (
-      objectContent,
       instance,
       propertyName,
       newValue
@@ -158,7 +153,7 @@ module.exports = {
       return false;
     };
 
-    lightObject.getInitialInstanceProperties = function (content, instance) {
+    lightObject.getInitialInstanceProperties = function (instance) {
       const instanceProperties = new gd.MapStringPropertyDescriptor();
 
       return instanceProperties;
@@ -238,6 +233,10 @@ module.exports = {
      * Renderer for instances of LightObject inside the IDE.
      */
     class RenderedLightObjectInstance extends RenderedInstance {
+      _radius = 0;
+      _color = 0;
+      _radiusGraphics = null;
+
       constructor(
         project,
         instance,
@@ -252,19 +251,6 @@ module.exports = {
           pixiContainer,
           pixiResourcesLoader
         );
-        this._radius = parseFloat(
-          this._associatedObjectConfiguration
-            .getProperties()
-            .get('radius')
-            .getValue()
-        );
-        if (this._radius <= 0) this._radius = 1;
-        const color = objectsRenderingService.rgbOrHexToHexNumber(
-          this._associatedObjectConfiguration
-            .getProperties()
-            .get('color')
-            .getValue()
-        );
 
         // The icon in the middle.
         const lightIconSprite = new PIXI.Sprite(
@@ -274,18 +260,11 @@ module.exports = {
         lightIconSprite.anchor.y = 0.5;
 
         // The circle to show the radius of the light.
-        const radiusBorderWidth = 2;
-        const radiusGraphics = new PIXI.Graphics();
-        radiusGraphics.lineStyle(radiusBorderWidth, color, 0.8);
-        radiusGraphics.drawCircle(
-          0,
-          0,
-          Math.max(1, this._radius - radiusBorderWidth)
-        );
+        this._radiusGraphics = new PIXI.Graphics();
 
         this._pixiObject = new PIXI.Container();
         this._pixiObject.addChild(lightIconSprite);
-        this._pixiObject.addChild(radiusGraphics);
+        this._pixiObject.addChild(this._radiusGraphics);
         this._pixiContainer.addChild(this._pixiObject);
         this.update();
       }
@@ -307,8 +286,41 @@ module.exports = {
        * This is called to update the PIXI object on the scene editor
        */
       update() {
+        const object = gd.castObject(
+          this._associatedObjectConfiguration,
+          gd.ObjectJsImplementation
+        );
+
         this._pixiObject.position.x = this._instance.getX();
         this._pixiObject.position.y = this._instance.getY();
+
+        let radiusGraphicsDirty = false;
+
+        let radius = object.content.radius;
+        if (radius <= 0) radius = 1;
+        if (radius !== this._radius) {
+          this._radius = radius;
+          radiusGraphicsDirty = true;
+        }
+
+        const color = objectsRenderingService.rgbOrHexToHexNumber(
+          object.content.color
+        );
+        if (color !== this._color) {
+          this._color = color;
+          radiusGraphicsDirty = true;
+        }
+
+        if (radiusGraphicsDirty) {
+          const radiusBorderWidth = 2;
+          this._radiusGraphics.clear();
+          this._radiusGraphics.lineStyle(radiusBorderWidth, color, 0.8);
+          this._radiusGraphics.drawCircle(
+            0,
+            0,
+            Math.max(1, this._radius - radiusBorderWidth)
+          );
+        }
       }
 
       /**

Extensions/Lighting/lightruntimeobject-pixi-renderer.ts

@@ -505,8 +505,9 @@ namespace gdjs {
       closestVertices.sort(
         LightRuntimeObjectPixiRenderer._verticesWithAngleComparator
       );
-      const filteredVerticesResult = [closestVertices[0].vertex];
       const closestVerticesCount = closestVertices.length;
+      if (closestVerticesCount === 0) return [];
+      const filteredVerticesResult = [closestVertices[0].vertex];
       for (let i = 1; i < closestVerticesCount; i++) {
         if (closestVertices[i].angle !== closestVertices[i - 1].angle) {
           filteredVerticesResult.push(closestVertices[i].vertex);

Extensions/Multiplayer/multiplayerobjectruntimebehavior.ts

@@ -120,10 +120,11 @@ namespace gdjs {
 
     private _isOwnerAsPlayerOrHost() {
       const currentPlayerNumber = gdjs.multiplayer.getCurrentPlayerNumber();
+      const isHost = gdjs.multiplayer.isCurrentPlayerHost();
 
       const isOwnerOfObject =
         currentPlayerNumber === this.playerNumber || // Player as owner.
-        (currentPlayerNumber === 1 && this.playerNumber === 0); // Host as owner.
+        (isHost && this.playerNumber === 0); // Host as owner.
 
       return isOwnerOfObject;
     }
@@ -455,8 +456,8 @@ namespace gdjs {
 
       // Before sending the destroy message, we set up the object representing the peers
       // that we need an acknowledgment from.
-      // If we are player 1, we are connected to everyone, so we expect an acknowledgment from everyone.
-      // If we are another player, we are only connected to player 1, so we expect an acknowledgment from player 1.
+      // If we are the host, we are connected to everyone, so we expect an acknowledgment from everyone.
+      // If we are another player, we are only connected to the host, so we expect an acknowledgment from the host.
       // In both cases, this represents the list of peers the current user is connected to.
       const otherPeerIds = gdjs.multiplayerPeerJsHelper.getAllPeers();
       const {
@@ -508,7 +509,7 @@ namespace gdjs {
 
       // Update the ownership locally, so the object can be used immediately.
       // This is a prediction to allow snappy interactions.
-      // If we are player 1 or host, we will have the ownership immediately anyway.
+      // If we are host, we will have the ownership immediately anyway.
       // If we are another player, we will have the ownership as soon as the host acknowledges the change.
       // If the host does not send an acknowledgment, we will revert the ownership.
       const previousObjectPlayerNumber = this.playerNumber;
@@ -564,8 +565,8 @@ namespace gdjs {
       });
       // Before sending the changeOwner message, if we are becoming the new owner,
       // we want to ensure this message is acknowledged, by everyone we're connected to.
-      // If we are player 1, we are connected to everyone, so we expect an acknowledgment from everyone.
-      // If we are another player, we are only connected to player 1, so we expect an acknowledgment from player 1.
+      // If we are the host, we are connected to everyone, so we expect an acknowledgment from everyone.
+      // If we are another player, we are only connected to the host, so we expect an acknowledgment from the host.
       // In both cases, this represents the list of peers the current user is connected to.
       if (newObjectPlayerNumber === currentPlayerNumber) {
         const otherPeerIds = gdjs.multiplayerPeerJsHelper.getAllPeers();
@@ -581,7 +582,7 @@ namespace gdjs {
           expectedMessageName: changeOwnerAcknowledgedMessageName,
           otherPeerIds,
           // If we are not the host, we should revert the ownership if the host does not acknowledge the change.
-          shouldCancelMessageIfTimesOut: currentPlayerNumber !== 1,
+          shouldCancelMessageIfTimesOut: !gdjs.multiplayer.isCurrentPlayerHost(),
         });
       }