Fix sharing buttons

Do not show in changelog

.circleci/config.yml

@@ -1,9 +1,79 @@
-# CircleCI 2.0 configuration file to build GDevelop app running
+# CircleCI configuration to build GDevelop app running
-# on the Electron runtime (newIDE/electron-app).
+# on the Electron runtime (newIDE/electron-app) for macOS and Linux.
+# For Windows, see the appveyor.yml file.
 
-version: 2
+version: 2.1
 jobs:
-  build:
+  build-macos:
+    macos:
+      xcode: 12.5.1
+    steps:
+      - checkout
+
+      # System dependencies (for Emscripten and upload)
+      - run:
+          name: Install dependencies for Emscripten
+          command: brew install cmake
+
+      - run:
+          name: Install dependencies for AWS S3 upload
+          command: curl "https://awscli.amazonaws.com/AWSCLIV2.pkg" -o "AWSCLIV2.pkg" && sudo installer -pkg AWSCLIV2.pkg -target /
+
+      - run:
+          name: Install Emscripten (for GDevelop.js)
+          command: git clone https://github.com/juj/emsdk.git && cd emsdk && ./emsdk install 1.39.6 && ./emsdk activate 1.39.6 && cd ..
+
+      # GDevelop.js dependencies
+      - restore_cache:
+          keys:
+            - gd-macos-nodejs-dependencies-{{ checksum "newIDE/app/package.json" }}-{{ checksum "newIDE/electron-app/package.json" }}-{{ checksum "GDevelop.js/package.json" }}
+            # fallback to using the latest cache if no exact match is found
+            - gd-macos-nodejs-dependencies---
+
+      - run:
+          name: Install GDevelop.js dependencies and build it
+          command: cd GDevelop.js && npm install && cd ..
+
+      # Build GDevelop.js (and run tests to ensure it works)
+      - run:
+          name: Build GDevelop.js
+          command: cd GDevelop.js && source ../emsdk/emsdk_env.sh && npm run build && npm test && cd ..
+
+      # GDevelop IDE dependencies (after building GDevelop.js to avoid downloading a pre-built version)
+      - run:
+          name: Install GDevelop IDE dependencies
+          command: cd newIDE/app && npm install && cd ../electron-app && npm install
+
+      - save_cache:
+          paths:
+            - newIDE/electron-app/node_modules
+            - newIDE/app/node_modules
+            - GDevelop.js/node_modules
+          key: gd-macos-nodejs-dependencies-{{ checksum "newIDE/app/package.json" }}-{{ checksum "newIDE/electron-app/package.json" }}-{{ checksum "GDevelop.js/package.json" }}
+
+      # Build GDevelop IDE (seems like we need to allow Node.js to use more space than usual)
+      # Note: Code signing is done using CSC_LINK (see https://www.electron.build/code-signing).
+      - run:
+          name: Build GDevelop IDE
+          command: export NODE_OPTIONS="--max-old-space-size=7168" && cd newIDE/electron-app && npm run build -- --mac --publish=never
+
+      - run:
+          name: Clean dist folder to keep only installers/binaries.
+          command: rm -rf "newIDE/electron-app/dist/mac/GDevelop 5.app"
+
+      # Upload artifacts (CircleCI)
+      - store_artifacts:
+          path: newIDE/electron-app/dist
+
+      # Upload artifacts (AWS)
+      - run:
+          name: Deploy to S3 (specific commit)
+          command: export PATH=~/.local/bin:$PATH && aws s3 sync newIDE/electron-app/dist s3://gdevelop-releases/$(git rev-parse --abbrev-ref HEAD)/commit/$(git rev-parse HEAD)/
+      - run:
+          name: Deploy to S3 (latest)
+          command: export PATH=~/.local/bin:$PATH && aws s3 sync newIDE/electron-app/dist s3://gdevelop-releases/$(git rev-parse --abbrev-ref HEAD)/latest/
+
+  build-linux:
     # CircleCI docker workers are failing if they don't have enough memory (no swap)
     resource_class: xlarge
     docker:
@@ -23,10 +93,6 @@ jobs:
           name: Install Emscripten (for GDevelop.js)
           command: git clone https://github.com/juj/emsdk.git && cd emsdk && ./emsdk install 1.39.6 && ./emsdk activate 1.39.6 && cd ..
 
-      - run:
-          name: Install Wine for Electron builder
-          command: sudo dpkg --add-architecture i386 && sudo apt-get update && sudo apt install wine32
-
       - run:
           name: Install system dependencies for Electron builder
           command: sudo apt install icnsutils && sudo apt install graphicsmagick && sudo apt install rsync
@@ -34,15 +100,15 @@ jobs:
       # GDevelop.js dependencies
       - restore_cache:
           keys:
-            - gd-nodejs-dependencies-{{ checksum "newIDE/app/package.json" }}-{{ checksum "newIDE/electron-app/package.json" }}-{{ checksum "GDevelop.js/package.json" }}
+            - gd-linux-nodejs-dependencies-{{ checksum "newIDE/app/package.json" }}-{{ checksum "newIDE/electron-app/package.json" }}-{{ checksum "GDevelop.js/package.json" }}
             # fallback to using the latest cache if no exact match is found
-            - gd-nodejs-dependencies---
+            - gd-linux-nodejs-dependencies---
 
       - run:
           name: Install GDevelop.js dependencies and build it
-          command: cd GDevelop.js && sudo npm install -g grunt-cli && npm install && cd ..
+          command: cd GDevelop.js && npm install && cd ..
 
-      # Build GDevelop.js
+      # Build GDevelop.js (and run tests to ensure it works)
       - run:
           name: Build GDevelop.js
           command: cd GDevelop.js && source ../emsdk/emsdk_env.sh && npm run build && npm test && cd ..
@@ -57,16 +123,16 @@ jobs:
             - newIDE/electron-app/node_modules
             - newIDE/app/node_modules
             - GDevelop.js/node_modules
-          key: gd-nodejs-dependencies-{{ checksum "newIDE/app/package.json" }}-{{ checksum "newIDE/electron-app/package.json" }}
+          key: gd-linux-nodejs-dependencies-{{ checksum "newIDE/app/package.json" }}-{{ checksum "newIDE/electron-app/package.json" }}-{{ checksum "GDevelop.js/package.json" }}
 
       # Build GDevelop IDE (seems like we need to allow Node.js to use more space than usual)
       - run:
           name: Build GDevelop IDE
-          command: export NODE_OPTIONS="--max-old-space-size=7168" && cd newIDE/electron-app && npm run build -- --mac zip --win --linux tar.gz --publish=never
+          command: export NODE_OPTIONS="--max-old-space-size=7168" && cd newIDE/electron-app && npm run build -- --linux AppImage --publish=never
 
       - run:
           name: Clean dist folder to keep only installers/binaries.
-          command: rm -rf newIDE/electron-app/dist/linux-unpacked && rm -rf newIDE/electron-app/dist/win-unpacked && rm -rf newIDE/electron-app/dist/mac
+          command: rm -rf newIDE/electron-app/dist/linux-unpacked
 
       # Upload artifacts (CircleCI)
       - store_artifacts:
@@ -79,3 +145,20 @@ jobs:
       - run:
           name: Deploy to S3 (latest)
           command: aws s3 sync newIDE/electron-app/dist s3://gdevelop-releases/$(git rev-parse --abbrev-ref HEAD)/latest/
+
+
+workflows:
+  builds:
+    jobs:
+      - build-macos:
+          filters:
+            branches:
+              only:
+                - master
+                - /experimental-build.*/
+      - build-linux:
+          filters:
+            branches:
+              only:
+                - master
+                - /experimental-build.*/

.clang_complete

@@ -13,6 +13,5 @@
 -fPIC
 -I./ExtLibs/SFML/include
 -I./Core
--I./GDCpp/.
 -I./GDJS/.
 -F./ExtLibs/SFML/extlibs/libs-osx/Frameworks

.gitattributes

@@ -1,6 +1,5 @@
 Core/GDCore/Serialization/rapidjson/rapidjson.h/* linguist-vendored
 Core/GDCore/TinyXml/* linguist-vendored
-GDCpp/GDCpp/Runtime/TinyXml/* linguist-vendored
 Extensions/ParticleSystem/SPARK/* linguist-vendored
 Extensions/PhysicsBehavior/Box2D/* linguist-vendored
 Extensions/PhysicsBehavior/box2djs/* linguist-vendored

.github/stale.yml

@@ -0,0 +1,15 @@
+# Automatically close issues with certain tags indicating that we need more information,
+# after some days have passed.
+
+daysUntilStale: 20
+daysUntilClose: 7
+
+# Only do this on tags implying we need more information:
+onlyLabels: ["Need a game/precise steps to reproduce the issue","👋 Needs confirmation/testing"]
+only: issues
+
+markComment: >
+  This issue seems to be stale: it needs additional information but it has not had
+  recent activity. It will be closed in 7 days if no further activity occurs. Thank you
+  for your contributions.
+

.github/workflows/build-storybook.yml

@@ -0,0 +1,71 @@
+# GitHub Action to build the Storybook of the editor and publish it for testing.
+#
+# Note that only the Storybook is built and GDevelop.js is not rebuilt (for speed concerns),
+# so changes in the C++ source could not be reflected if the CI run by Travis-CI
+# did not upload a freshly built GDevelop.js.
+
+name: Build Storybook
+
+on:
+  # Launch on all commits.
+  push:
+  # Allows to run this workflow manually from the Actions tab,
+  # to publish on Chromatic (not done by default).
+  workflow_dispatch:
+
+jobs:
+  build-storybook:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          aws-access-key-id: ${{ secrets.BUILD_STORYBOOK_AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.BUILD_STORYBOOK_AWS_SECRET_ACCESS_KEY }}
+          aws-region: us-east-1
+
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 50
+
+      # Cache npm dependencies to speed up the workflow
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-newIDE-app-node_modules
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('newIDE/app/package-lock.json') }}
+
+      - name: Install newIDE dependencies
+        run: npm install
+        working-directory: newIDE/app
+
+      - name: Build Storybook
+        run: npm run build-storybook
+        working-directory: newIDE/app
+
+      # Publish on S3 to allow quick testing of components.
+      - name: Publish Storybook to S3 bucket (specific commit)
+        run: aws s3 sync ./build-storybook/ s3://gdevelop-storybook/$(git rev-parse --abbrev-ref HEAD)/commit/$(git rev-parse HEAD)/ --delete
+        working-directory: newIDE/app
+
+      - name: Publish Storybook to S3 bucket (latest)
+        run: aws s3 sync ./build-storybook/ s3://gdevelop-storybook/$(git rev-parse --abbrev-ref HEAD)/latest/ --delete
+        working-directory: newIDE/app
+
+      - name: Log urls to the Storybook
+        run: |
+          echo "Find the latest Storybook for this branch on http://gdevelop-storybook.s3-website-us-east-1.amazonaws.com/$(git rev-parse --abbrev-ref HEAD)/latest/index.html"
+          echo "Find the Storybook for this commit on http://gdevelop-storybook.s3-website-us-east-1.amazonaws.com/$(git rev-parse --abbrev-ref HEAD)/commit/$(git rev-parse HEAD)/index.html"
+
+      # Publish on Chromatic, only when manually launched (too costly to run on every commit).
+      - name: Publish Storybook to Chromatic
+        if: github.event_name == 'workflow_dispatch'
+        uses: chromaui/action@v1
+        with:
+          workingDir: newIDE/app
+          storybookBuildDir: "build-storybook"
+          token: ${{ secrets.GITHUB_TOKEN }}
+          projectToken: ${{ secrets.CHROMATIC_PROJECT_TOKEN }}

.github/workflows/extract-translations.yml

@@ -0,0 +1,47 @@
+# GitHub Action to extract translations and (later) upload them to Crowdin.
+
+name: Extract translations
+on:
+  # Execute for all commits (to ensure translations extraction works)
+  push:
+  # Allows to run this workflow manually from the Actions tab.
+  workflow_dispatch:
+
+jobs:
+  extract-translations:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      # Cache npm dependencies to speed up the workflow
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-newIDE-app-node_modules
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('newIDE/app/package-lock.json') }}
+
+      - name: Install gettext
+        run: sudo apt update && sudo apt install gettext -y
+
+      - name: Install newIDE dependencies
+        run: npm install
+        working-directory: newIDE/app
+
+      - name: Extract translations
+        run: npm run extract-all-translations
+        working-directory: newIDE/app
+
+      # Only upload on Crowdin for the master branch
+      - name: Install Crowdin CLI
+        if: github.ref == 'refs/heads/master'
+        run: npm i -g @crowdin/cli
+        
+      - name: Upload translations to Crowdin
+        run: crowdin upload sources
+        if: github.ref == 'refs/heads/master'
+        env:
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}

.github/workflows/issues.yml

@@ -4,13 +4,6 @@ jobs:
   autoclose:
     runs-on: ubuntu-latest
     steps:
-    - name: Autoclose issues about adding a new example without providing anything
-      uses: arkon/issue-closer-action@v1.1
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        type: "body"
-        regex: ".*INSERT the link to your game here, or add it as an attachment.*"
-        message: "Hi @${issue.user.login}! 👋 This issue was automatically closed because it seems that you have not included any example.\n\nGitHub is a place for the technical development of GDevelop itself - you may want to go on the [forum](https://forum.gdevelop-app.com/), the Discord chat or [read the documentation](http://wiki.compilgames.net/doku.php/gdevelop5/start) to learn more about GDevelop. Thanks!"
     - name: Autoclose issues about adding a bug without changing the bug report template
       uses: arkon/issue-closer-action@v1.1
       with:
@@ -25,3 +18,11 @@ jobs:
         type: "body"
         regex: ".*_instance.getRawFloatProperty is not a function.*"
         message: "Hi @${issue.user.login}! 👋 This issue was automatically closed as this seems to be a known bug. It can be solved by **closing entirely the web-app and opening it again**. This will allow the web-app to auto-update and the problem should be gone."
+    - name: Autoclose known beta 114 web-app update bug
+      uses: arkon/issue-closer-action@v1.1
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        type: "body"
+        regex: ".*getAssociatedSettings is not a function.*"
+        message: "Hi @${issue.user.login}! 👋 This issue was automatically closed as this seems to be a known bug. It can be solved by **closing entirely the web-app and opening it again**. This will allow the web-app to auto-update and the problem should be gone."
+

.github/workflows/update-translations.yml

@@ -0,0 +1,73 @@
+# GitHub Action to update translations by downloading them from Crowdin,
+# and open a Pull Request with the changes.
+
+name: Update translations
+on:
+  # Execute only on master
+  push:
+    branches:
+      - master
+  # Allows to run this workflow manually from the Actions tab.
+  workflow_dispatch:
+
+jobs:
+  update-translations:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      # Cache npm dependencies to speed up the workflow
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-newIDE-app-node_modules
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('newIDE/app/package-lock.json') }}
+
+      - name: Install gettext
+        run: sudo apt update && sudo apt install gettext -y
+
+      - name: Install newIDE dependencies
+        run: npm install
+        working-directory: newIDE/app
+
+      # We need to extract translations first to make sure all the source strings
+      # are included in the English catalogs. Otherwise, missing source strings
+      # with parameters (like "My name is {0}.") would be shown as-is when
+      # the app is built (but not in development - unclear why, LinguiJS issue?).
+      - name: Extract translations
+        run: npm run extract-all-translations
+        working-directory: newIDE/app
+
+      # (Build and) download the most recent translations (PO files) from Crowdin.
+      - name: Install Crowdin CLI
+        run: npm i -g @crowdin/cli
+        
+      - name: Download new translations from Crowdin
+        run: crowdin download
+        env:
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}
+
+      # Seems like the three letters code is not handled properly by LinguiJS?
+      # Do without this language while we find a solution.
+      - name: Remove catalogs not handled properly by LinguiJS compile command.
+        run: rm -rf newIDE/app/src/locales/pcm_NG/
+
+      - name: Compile translations into .js files that are read by LinguiJS
+        run: npm run compile-translations
+        working-directory: newIDE/app
+
+      - name: Create a Pull Request with the changes
+        uses: peter-evans/create-pull-request@v3.10.1
+        with:
+          commit-message: Update translations [skip ci]
+          branch: chore/update-translations
+          delete-branch: true
+          title: '[Auto PR] Update translations'
+          body: |
+            This updates the translations by downloading them from Crowdin and compiling them for usage by the app.
+            
+            Please double check the values in `newIDE/app/src/locales/LocalesMetadata.js` to ensure the changes are sensible.

.gitignore

@@ -1,4 +1,3 @@
-/Core/GDCore/Tools/VersionPriv.h
 /docs
 /docs-wiki
 /ExtLibs/SFML
@@ -16,7 +15,6 @@
 *.bc
 /Binaries/Output
 *.autosave
-!/GDCpp/scripts/bcp.exe
 !/scripts/libgettextlib-0-17.dll
 !/scripts/libgettextsrc-0-17.dll
 !/xgettext.exe

.semaphore/semaphore.yml

@@ -0,0 +1,107 @@
+version: v1.0
+name: Fast tests (not building GDevelop.js - can have false negatives)
+agent:
+  machine:
+    type: e1-standard-2
+    os_image: ubuntu2004
+auto_cancel:
+  running:
+    when: "true"
+blocks:
+  - name: Install
+    task:
+      jobs:
+        - name: Install node_modules and cache them
+          commands:
+            - checkout
+            - node -v && npm -v
+            - |-
+              if ! cache has_key newIDE-app-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum newIDE/app/package-lock.json); then
+                cd newIDE/app
+                npm ci
+                cd ../..
+                cache store newIDE-app-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum newIDE/app/package-lock.json) newIDE/app/node_modules
+              fi
+            - |-
+              if ! cache has_key GDJS-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/package-lock.json); then
+                cd GDJS
+                git checkout package-lock.json # Ensure no changes was made by newIDE post-install tasks.
+                npm ci
+                cd ..
+                cache store GDJS-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/package-lock.json) GDJS/node_modules
+              fi
+            - |-
+              if ! cache has_key GDJS-tests-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/tests/package-lock.json); then
+                cd GDJS/tests
+                npm ci
+                cd ../..
+                cache store GDJS-tests-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/tests/package-lock.json) GDJS/tests/node_modules
+              fi
+    dependencies: []
+  - name: Type checks
+    dependencies:
+      - Install
+    task:
+      jobs:
+        - name: newIDE typing
+          commands:
+            - checkout
+            - cache restore newIDE-app-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum newIDE/app/package-lock.json)
+            - cache restore GDJS-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/package-lock.json)
+            - cd newIDE/app
+            - npm run postinstall
+            - npm run flow
+            - npm run check-script-types
+            - cd ../..
+        - name: GDJS typing and documentation generation
+          commands:
+            - checkout
+            - cache restore GDJS-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/package-lock.json)
+            - cache restore GDJS-tests-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/tests/package-lock.json)
+            - cd GDJS
+            - npm run check-types
+            - npm run generate-doc
+  - name: Auto formatting
+    dependencies:
+      - Install
+    task:
+      jobs:
+        - name: newIDE auto-formatting
+          commands:
+            - checkout
+            - cache restore newIDE-app-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum newIDE/app/package-lock.json)
+            - cache restore GDJS-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/package-lock.json)
+            - cd newIDE/app
+            - npm run postinstall
+            - npm run check-format
+            - cd ../..
+        - name: GDJS auto-formatting
+          commands:
+            - checkout
+            - cache restore GDJS-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/package-lock.json)
+            - cd GDJS
+            - npm run check-format
+            - cd ..
+  - name: Tests
+    dependencies:
+      - Install
+    task:
+      jobs:
+        - name: newIDE tests
+          commands:
+            - checkout
+            - cache restore newIDE-app-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum newIDE/app/package-lock.json)
+            - cache restore GDJS-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/package-lock.json)
+            - cd newIDE/app
+            - npm run postinstall
+            - npm run analyze-test-coverage
+            - cd ../..
+        - name: GDJS tests
+          commands:
+            - checkout
+            - cache restore GDJS-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/package-lock.json)
+            - cache restore GDJS-tests-node_modules-$SEMAPHORE_GIT_BRANCH-revision-$(checksum GDJS/tests/package-lock.json)
+            - cd GDJS
+            - npm run build
+            - npm run test
+            - cd ../..

.travis.yml

@@ -1,3 +1,12 @@
+# Travis CI configuration to build and run all tests
+# (and typing/formatting) for the Core, newIDE, GDJS.
+#
+# This builds GDevelop.js and store it on a S3 so it can be used to run
+# GDevelop without building it.
+#
+# See also Semaphore CI for quick tests (not building GDevelop.js, so
+# faster but not always reliable).
+
 language: cpp
 sudo: false
 compiler:
@@ -53,7 +62,7 @@ before_install:
 install:
 #Get the correct version of gcc/g++
   - if [ "$CXX" = "g++" ]; then export CXX="g++-${GCC_VERSION}" CC="gcc-${GCC_VERSION}"; fi
-#Compile the tests only for GDCore and GDCpp
+#Compile the tests only for GDCore
   - mkdir .build-tests
   - cd .build-tests
   - cmake -DBUILD_GDJS=FALSE -DBUILD_TESTS=TRUE -DCMAKE_CXX_COMPILER=$(which $CXX) -DCMAKE_C_COMPILER=$(which $CC) ..
@@ -80,12 +89,9 @@ install:
   - cd ../..
 
 script:
-# GDCore and GDCpp game engine tests:
+# GDCore tests:
   - cd .build-tests
   - Core/GDCore_tests
-  - GDCpp/GDCpp_tests
-  - Extensions/PathfindingBehavior/PathfindingBehavior_Runtime_tests
-  - Extensions/LinkedObjects/LinkedObjects_Runtime_tests
   - cd ..
 # GDevelop.js tests
   - cd GDevelop.js
@@ -96,12 +102,13 @@ script:
   - npm test
   - npm run flow
   - npm run check-format
+  - npm run check-script-types
   - cd ../..
 # GDJS tests:
   - cd GDJS
   - npm run check-format
   - cd ..
 # GDJS game engine tests, disabled on Travis CI because ChromeHeadless can't be started.
-# See them running on Semaphore-CI instead: https://semaphoreci.com/4ian/gd
+# See them running on Semaphore-CI instead: https://gdevelop.semaphoreci.com/projects/GDevelop
 #  - cd GDJS/tests && npm test
 #  - cd ../..

.vscode/c_cpp_properties.json

@@ -1,98 +1,104 @@
 {
-  "configurations": [
+    "configurations": [
-    {
+        {
-      "name": "Mac",
+            "name": "Mac",
-      "includePath": [
+            "includePath": [
-        "${workspaceRoot}",
+                "${workspaceRoot}",
-        "${workspaceRoot}/GDCpp",
+                "${workspaceRoot}/GDJS",
-        "${workspaceRoot}/GDJS",
+                "${workspaceRoot}/Extensions",
-        "${workspaceRoot}/Extensions",
+                "${workspaceRoot}/Core",
-        "${workspaceRoot}/Core",
+                "${workspaceRoot}/ExtLibs/SFML/include",
-        "${workspaceRoot}/ExtLibs/SFML/include",
+                "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1",
-        "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1",
+                "/usr/local/include",
-        "/usr/local/include",
+                "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include",
-        "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include",
+                "/usr/include",
-        "/usr/include",
+                "${workspaceRoot}"
-        "${workspaceRoot}"
+            ],
-      ],
+            "defines": [
-      "defines": [
+                "EMSCRIPTEN",
-        "EMSCRIPTEN",
+                "GD_IDE_ONLY",
-        "GD_IDE_ONLY",
+                "GD_CORE_API=/* Macro used to export classes on Windows, please ignore */",
-        "GD_CORE_API=/* Macro used to export classes on Windows, please ignore */",
+                "GD_API=/* Macro used to export classes on Windows, please ignore */",
-        "GD_API=/* Macro used to export classes on Windows, please ignore */",
+                "GD_EXTENSION_API=/* Macro used to export classes on Windows, please ignore */"
-        "GD_EXTENSION_API=/* Macro used to export classes on Windows, please ignore */"
+            ],
-      ],
+            "intelliSenseMode": "clang-x64",
-      "intelliSenseMode": "clang-x64",
+            "browse": {
-      "browse": {
+                "path": [
-        "path": [
+                    "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1",
-          "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1",
+                    "/usr/local/include",
-          "/usr/local/include",
+                    "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include",
-          "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include",
+                    "/usr/include",
-          "/usr/include",
+                    "${workspaceRoot}"
-          "${workspaceRoot}"
+                ],
-        ],
+                "limitSymbolsToIncludedHeaders": true,
-        "limitSymbolsToIncludedHeaders": true,
+                "databaseFilename": ""
-        "databaseFilename": ""
+            },
-      },
+            "macFrameworkPath": [
-      "macFrameworkPath": ["/System/Library/Frameworks", "/Library/Frameworks"],
+                "/System/Library/Frameworks",
-      "compilerPath": "/usr/bin/clang",
+                "/Library/Frameworks"
-      "cStandard": "c11",
+            ],
-      "cppStandard": "c++17"
+            "compilerPath": "/usr/bin/clang",
-    },
+            "cStandard": "c11",
-    {
+            "cppStandard": "c++17"
-      "name": "Linux",
+        },
-      "includePath": [
+        {
-        "${workspaceRoot}",
+            "name": "Linux",
-        "${workspaceRoot}/GDCpp",
+            "includePath": [
-        "${workspaceRoot}/GDJS",
+                "${workspaceRoot}",
-        "${workspaceRoot}/Extensions",
+                "${workspaceRoot}/GDJS",
-        "${workspaceRoot}/Core",
+                "${workspaceRoot}/Extensions",
-        "${workspaceRoot}/ExtLibs/SFML/include",
+                "${workspaceRoot}/Core",
-        "/usr/include",
+                "${workspaceRoot}/ExtLibs/SFML/include",
-        "/usr/local/include",
+                "/usr/include",
-        "${workspaceRoot}"
+                "/usr/local/include",
-      ],
+                "${workspaceRoot}"
-      "defines": [
+            ],
-        "EMSCRIPTEN",
+            "defines": [
-        "GD_IDE_ONLY",
+                "EMSCRIPTEN",
-        "GD_CORE_API=/* Macro used to export classes on Windows, please ignore */",
+                "GD_IDE_ONLY",
-        "GD_API=/* Macro used to export classes on Windows, please ignore */",
+                "GD_CORE_API=/* Macro used to export classes on Windows, please ignore */",
-        "GD_EXTENSION_API=/* Macro used to export classes on Windows, please ignore */"
+                "GD_API=/* Macro used to export classes on Windows, please ignore */",
-      ],
+                "GD_EXTENSION_API=/* Macro used to export classes on Windows, please ignore */"
-      "intelliSenseMode": "clang-x64",
+            ],
-      "browse": {
+            "intelliSenseMode": "clang-x64",
-        "path": ["/usr/include", "/usr/local/include", "${workspaceRoot}"],
+            "browse": {
-        "limitSymbolsToIncludedHeaders": true,
+                "path": [
-        "databaseFilename": ""
+                    "/usr/include",
-      }
+                    "/usr/local/include",
-    },
+                    "${workspaceRoot}"
-    {
+                ],
-      "name": "Win32",
+                "limitSymbolsToIncludedHeaders": true,
-      "includePath": [
+                "databaseFilename": ""
-        "${workspaceRoot}",
+            }
-        "${workspaceRoot}/GDCpp",
+        },
-        "${workspaceRoot}/GDJS",
+        {
-        "${workspaceRoot}/Extensions",
+            "name": "Win32",
-        "${workspaceRoot}/Core",
+            "includePath": [
-        "${workspaceRoot}/ExtLibs/SFML/include",
+                "${workspaceRoot}",
-        "${workspaceRoot}"
+                "${workspaceRoot}/GDJS",
-      ],
+                "${workspaceRoot}/Extensions",
-      "defines": [
+                "${workspaceRoot}/Core",
-        "_DEBUG",
+                "${workspaceRoot}/ExtLibs/SFML/include",
-        "UNICODE",
+                "${workspaceRoot}"
-        "EMSCRIPTEN",
+            ],
-        "GD_IDE_ONLY",
+            "defines": [
-        "GD_CORE_API=/* Macro used to export classes on Windows, please ignore */",
+                "_DEBUG",
-        "GD_API=/* Macro used to export classes on Windows, please ignore */",
+                "UNICODE",
-        "GD_EXTENSION_API=/* Macro used to export classes on Windows, please ignore */"
+                "EMSCRIPTEN",
-      ],
+                "GD_IDE_ONLY",
-      "intelliSenseMode": "msvc-x64",
+                "GD_CORE_API=/* Macro used to export classes on Windows, please ignore */",
-      "browse": {
+                "GD_API=/* Macro used to export classes on Windows, please ignore */",
-        "path": ["${workspaceRoot}"],
+                "GD_EXTENSION_API=/* Macro used to export classes on Windows, please ignore */"
-        "limitSymbolsToIncludedHeaders": true,
+            ],
-        "databaseFilename": ""
+            "intelliSenseMode": "msvc-x64",
-      }
+            "browse": {
-    }
+                "path": [
-  ],
+                    "${workspaceRoot}"
-  "version": 4
+                ],
-}
+                "limitSymbolsToIncludedHeaders": true,
+                "databaseFilename": ""
+            }
+        }
+    ],
+    "version": 4
+}

.vscode/launch.json

@@ -4,13 +4,36 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "GDevelop.js Jest tests (all)",
+      "program": "${workspaceFolder}/GDevelop.js/node_modules/.bin/jest",
+      "args": ["--runInBand"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "disableOptimisticBPs": true,
+      "cwd": "${workspaceFolder}/GDevelop.js"
+    },
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "GDevelop.js Jest tests (current file)",
+      "program": "${workspaceFolder}/GDevelop.js/node_modules/.bin/jest",
+      "args": [
+        "${fileBasenameNoExtension}"
+      ],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "disableOptimisticBPs": true,
+      "cwd": "${workspaceFolder}/GDevelop.js"
+    },
     {
       "type": "pwa-chrome",
       "request": "launch",
-      "name": "Launch Chrome against localhost",
+      "name": "Debug with Chrome (web-app, local development server)",
       "url": "http://localhost:3000",
-      "webRoot": "${workspaceFolder}",
+      "webRoot": "${workspaceFolder}"
-      "preLaunchTask": "Start development server"
     }
   ]
 }

.vscode/settings.json

@@ -108,7 +108,8 @@
         "xtree": "cpp",
         "xutility": "cpp",
         "xlocbuf": "cpp",
-        "xlocmes": "cpp"
+        "xlocmes": "cpp",
+        "xmemory0": "cpp"
     },
     "files.exclude": {
         "Binaries/*build*": true,

.vscode/tasks.json

@@ -80,7 +80,7 @@
     },
     {
       "type": "typescript",
-      "tsconfig": "GDJS/tsconfig.json",
+      "tsconfig": "tsconfig.json",
       "option": "watch",
       "problemMatcher": ["$tsc-watch"],
       "group": "test",

Binaries/README.md

@@ -1,3 +1,3 @@
-This is the directory where native or WebAssembly binaries of the C++ code of GDCore, GDCpp and GDJS are produced.
+This is the directory where native or WebAssembly binaries of the C++ code of GDCore and GDJS are produced.
 
 See GDevelop.js README for the instructions to compile after a change in the C++ source code.

CMakeLists.txt

@@ -14,12 +14,10 @@ macro(gd_set_option var default type docstring)
     endif()
     set(${var} ${${var}} CACHE ${type} ${docstring} FORCE)
 endmacro()
-gd_set_option(BUILD_CORE TRUE BOOL "TRUE to build GDevelop Core library, FALSE to use the already compiled binaries")
+gd_set_option(BUILD_CORE TRUE BOOL "TRUE to build GDevelop Core library")
-gd_set_option(BUILD_GDCPP TRUE BOOL "TRUE to build GDevelop C++ Platform")
 gd_set_option(BUILD_GDJS TRUE BOOL "TRUE to build GDevelop JS Platform")
 gd_set_option(BUILD_EXTENSIONS TRUE BOOL "TRUE to build the extensions")
 gd_set_option(BUILD_TESTS FALSE BOOL "TRUE to build the tests")
-gd_set_option(FULL_VERSION_NUMBER TRUE BOOL "TRUE to build GDevelop with its full version number (lastest tag + commit hash), FALSE to only use the lastest tag (avoid rebulding many source file when developping)")
 
 # Disable deprecated code
 set(NO_GUI TRUE CACHE BOOL "" FORCE) #Force disable old GUI related code.
@@ -49,15 +47,11 @@ IF(APPLE)
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_WCHAR_H_CPLUSPLUS_98_CONFORMANCE_")
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-potentially-evaluated-expression")
 ENDIF()
-
 #Sanity checks
 IF ("${CMAKE_BUILD_TYPE}" STREQUAL "")
 	message( "CMAKE_BUILD_TYPE is empty, assuming build type is Release" )
 	set(CMAKE_BUILD_TYPE Release)
 ENDIF()
-IF (EMSCRIPTEN)
-	set(BUILD_GDCPP FALSE CACHE BOOL "" FORCE) #Force disable GDC++ when compiling with emscripten.
-ENDIF()
 
 IF("${CMAKE_BUILD_TYPE}" STREQUAL "Release" AND NOT WIN32 AND CMAKE_COMPILER_IS_GNUCXX)
 	SET(CMAKE_SHARED_LINKER_FLAGS "-s") #Force stripping to avoid errors when packaging for linux.
@@ -77,6 +71,13 @@ endif()
 
 # Mark some warnings as errors
 if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+	# Activate as much warnings as possible to avoid errors like
+	# uninitialized variables or other hard to debug bugs.
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unknown-warning-option")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-reorder-ctor -Wno-reorder -Wno-pessimizing-move -Wno-unused-variable -Wno-unused-private-field")
+
+	# Make as much warnings considered as errors as possible (only one for now).
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=return-stack-address")
 endif()
 
@@ -84,7 +85,6 @@ endif()
 set(GD_base_dir ${CMAKE_CURRENT_SOURCE_DIR})
 
 #Add all the CMakeLists:
-ADD_SUBDIRECTORY(Version)
 ADD_SUBDIRECTORY(ExtLibs)
 IF(BUILD_CORE)
 	ADD_SUBDIRECTORY(Core)
@@ -92,10 +92,7 @@ ENDIF()
 IF(BUILD_GDJS)
 	ADD_SUBDIRECTORY(GDJS)
 ENDIF()
-IF(BUILD_GDCPP)
+IF(EMSCRIPTEN)
-	ADD_SUBDIRECTORY(GDCpp)
-ENDIF()
-IF(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/GDevelop.js/CMakeLists.txt" AND EMSCRIPTEN)
 	ADD_SUBDIRECTORY(GDevelop.js)
 ENDIF()
 IF(BUILD_EXTENSIONS)

Core/CMakeLists.txt

@@ -57,7 +57,6 @@ IF(EMSCRIPTEN)
 ELSE()
 	add_library(GDCore SHARED ${source_files})
 ENDIF()
-add_dependencies(GDCore GDVersion)
 IF(EMSCRIPTEN)
 	set_target_properties(GDCore PROPERTIES SUFFIX ".bc")
 ELSEIF(WIN32)

Core/GDCore/DocMainPage.h

@@ -14,9 +14,8 @@
  *
  * \section other Other documentations
  *
- * GDevelop is architectured around a `Core` (this library), platforms (`GDJS`, `GDCpp`) and extensions (`Extensions` folder). The editor (`newIDE` folder) is using all of these libraries.
+ * GDevelop is architectured around a `Core` (this library), a game engine (`GDJS`) and extensions (`Extensions` folder). The editor (`newIDE` folder) is using all of these libraries.
  *
- *  - [Open GDevelop C++ Platform documentation](../GDCpp Documentation/index.html)
  *  - [Open GDevelop JS Platform documentation](../GDJS Documentation/index.html)
  *  - <a href="https://github.com/4ian/GDevelop/blob/master/newIDE/README.md">Getting started with the editor</a>
  *  - <a href="https://github.com/4ian/GDevelop/blob/master/newIDE/README-extensions.md">Getting started with the extensions</a>

Core/GDCore/Events/CodeGeneration/EffectsCodeGenerator.cpp

@@ -3,14 +3,17 @@
  * Copyright 2008-present Florian Rival (Florian.Rival@gmail.com). All rights
  * reserved. This project is released under the MIT License.
  */
-#include <iostream>
 #include "EffectsCodeGenerator.h"
+
+#include <iostream>
+
 #include "GDCore/Extensions/Metadata/EffectMetadata.h"
 #include "GDCore/Extensions/Metadata/MetadataProvider.h"
 #include "GDCore/Project/Effect.h"
-#include "GDCore/Project/Layer.h"
 #include "GDCore/Project/EffectsContainer.h"
+#include "GDCore/Project/Layer.h"
 #include "GDCore/Project/Layout.h"
+#include "GDCore/Project/Object.h"
 #include "GDCore/Project/Project.h"
 
 namespace gd {
@@ -33,6 +36,24 @@ void ExposeProjectEffects(
         worker(effect);
       }
     }
+
+    for (std::size_t i = 0; i < layout.GetObjectsCount(); i++) {
+      auto& object = layout.GetObject(i);
+      auto& effects = object.GetEffects();
+      for (std::size_t e = 0; e < effects.GetEffectsCount(); e++) {
+        auto& effect = effects.GetEffect(e);
+        worker(effect);
+      }
+    }
+  }
+
+  // Add global object effects
+  for (std::size_t s = 0; s < project.GetObjectsCount(); s++) {
+    auto& effects = project.GetObject(s).GetEffects();
+    for (std::size_t e = 0; e < effects.GetEffectsCount(); e++) {
+      auto& effect = effects.GetEffect(e);
+      worker(effect);
+    }
   }
 }
 

Core/GDCore/Events/CodeGeneration/EventsCodeGenerator.cpp

@@ -261,8 +261,11 @@ gd::String EventsCodeGenerator::GenerateConditionCode(
     EventsCodeGenerationContext& context) {
   gd::String conditionCode;
 
-  gd::InstructionMetadata instrInfos =
+  const gd::InstructionMetadata& instrInfos =
       MetadataProvider::GetConditionMetadata(platform, condition.GetType());
+  if (MetadataProvider::IsBadInstructionMetadata(instrInfos)) {
+    return "/* Unknown instruction - skipped. */";
+  }
 
   AddIncludeFiles(instrInfos.codeExtraInformation.GetIncludeFiles());
   maxConditionsListsSize =
@@ -299,15 +302,13 @@ gd::String EventsCodeGenerator::GenerateConditionCode(
           !GetObjectsAndGroups().GetObjectGroups().Has(objectInParameter) &&
           !GetGlobalObjectsAndGroups().GetObjectGroups().Has(
               objectInParameter)) {
-        condition.SetParameter(pNb, gd::Expression(""));
+        return "/* Unknown object - skipped. */";
-        condition.SetType("");
       } else if (!instrInfos.parameters[pNb].supplementaryInformation.empty() &&
                  gd::GetTypeOfObject(GetGlobalObjectsAndGroups(),
                                      GetObjectsAndGroups(),
                                      objectInParameter) !=
                      instrInfos.parameters[pNb].supplementaryInformation) {
-        condition.SetParameter(pNb, gd::Expression(""));
+        return "/* Mismatched object type - skipped. */";
-        condition.SetType("");
       }
     }
   }
@@ -425,6 +426,11 @@ gd::String EventsCodeGenerator::GenerateConditionsListCode(
       outputCode += "{\n";
       outputCode += conditionCode;
       outputCode += "}";
+    } else {
+      // Deprecated way to cancel code generation - but still honor it.
+      // Can be removed once condition is passed by const reference to
+      // GenerateConditionCode.
+      outputCode += "/* Skipped condition (empty type) */";
     }
   }
 
@@ -440,8 +446,11 @@ gd::String EventsCodeGenerator::GenerateActionCode(
     gd::Instruction& action, EventsCodeGenerationContext& context) {
   gd::String actionCode;
 
-  gd::InstructionMetadata instrInfos =
+  const gd::InstructionMetadata& instrInfos =
       MetadataProvider::GetActionMetadata(platform, action.GetType());
+  if (MetadataProvider::IsBadInstructionMetadata(instrInfos)) {
+    return "/* Unknown instruction - skipped. */";
+  }
 
   AddIncludeFiles(instrInfos.codeExtraInformation.GetIncludeFiles());
 
@@ -466,15 +475,13 @@ gd::String EventsCodeGenerator::GenerateActionCode(
           !GetObjectsAndGroups().GetObjectGroups().Has(objectInParameter) &&
           !GetGlobalObjectsAndGroups().GetObjectGroups().Has(
               objectInParameter)) {
-        action.SetParameter(pNb, gd::Expression(""));
+        return "/* Unknown object - skipped. */";
-        action.SetType("");
       } else if (!instrInfos.parameters[pNb].supplementaryInformation.empty() &&
                  gd::GetTypeOfObject(GetGlobalObjectsAndGroups(),
                                      GetObjectsAndGroups(),
                                      objectInParameter) !=
                      instrInfos.parameters[pNb].supplementaryInformation) {
-        action.SetParameter(pNb, gd::Expression(""));
+        return "/* Mismatched object type - skipped. */";
-        action.SetType("");
       }
     }
   }
@@ -556,7 +563,14 @@ gd::String EventsCodeGenerator::GenerateActionsListCode(
     gd::String actionCode = GenerateActionCode(actions[aId], context);
 
     outputCode += "{";
-    if (!actions[aId].GetType().empty()) outputCode += actionCode;
+    if (actions[aId].GetType().empty()) {
+      // Deprecated way to cancel code generation - but still honor it.
+      // Can be removed once action is passed by const reference to
+      // GenerateActionCode.
+      outputCode += "/* Skipped action (empty type) */";
+    } else {
+      outputCode += actionCode;
+    }
     outputCode += "}";
   }
 
@@ -607,8 +621,14 @@ gd::String EventsCodeGenerator::GenerateParameterCodes(
     argOutput = GenerateGetBehaviorNameCode(parameter);
   } else if (metadata.type == "key") {
     argOutput = "\"" + ConvertToString(parameter) + "\"";
-  } else if (metadata.type == "password" || metadata.type == "musicfile" ||
+  } else if (metadata.type == "password" ||  // Deprecated
-             metadata.type == "soundfile" || metadata.type == "police") {
+             metadata.type ==
+                 "musicfile" ||  // Should be renamed "largeAudioResource"
+             metadata.type ==
+                 "soundfile" ||            // Should be renamed "audioResource"
+             metadata.type == "police" ||  // Should be renamed "fontResource"
+             metadata.type == "bitmapFontResource" ||
+             metadata.type == "imageResource") {
     argOutput = "\"" + ConvertToString(parameter) + "\"";
   } else if (metadata.type == "mouse") {
     argOutput = "\"" + ConvertToString(parameter) + "\"";

Core/GDCore/Events/CodeGeneration/EventsCodeGenerator.h

@@ -462,24 +462,21 @@ class GD_CORE_API EventsCodeGenerator {
    * Other standard parameters type that should be implemented by platforms:
    * - currentScene: Reference to the current runtime scene.
    * - objectList : a map containing lists of objects which are specified by the
-  object name in another parameter. (C++: std::map <gd::String,
+  object name in another parameter. Example:
-  std::vector<RuntimeObject*> *>). Example:
    * \code
       AddExpression("Count", _("Object count"), _("Count the number of picked
   objects"), _("Objects"), "res/conditions/nbObjet.png")
       .AddParameter("objectList", _("Object"))
-      .SetFunctionName("PickedObjectsCount").SetIncludeFile("GDCpp/Extensions/Builtin/ObjectTools.h");
+      .SetFunctionName("getPickedObjectsCount");
 
    * \endcode
    * - objectListWithoutPicking : Same as objectList but do not pick object if
   they are not already picked.
-   * - objectPtr : Return a pointer to object specified by the object name in
+   * - objectPtr : Return a reference to the object specified by the object name in
-  another parameter ( C++: RuntimeObject* ). Example:
+  another parameter. Example:
    * \code
   .AddParameter("object", _("Object"))
   .AddParameter("objectPtr", _("Target object"))
-  //The called function will be called with this signature on the C++ platform:
-  Function(gd::String, RuntimeObject*)
    * \endcode
    */
   virtual gd::String GenerateParameterCodes(

Core/GDCore/Events/Event.h

@@ -16,7 +16,6 @@
 #include "GDCore/String.h"
 namespace gd {
 class EventsList;
-class MainFrameWrapper;
 class Project;
 class Layout;
 class EventsCodeGenerator;

Core/GDCore/Events/Parsers/ExpressionParser2.h

@@ -67,13 +67,13 @@ class GD_CORE_API ExpressionParser2 {
   }
 
   /**
-   * Given an object name (or empty if none) and a behavior name (or empty if none),
+   * Given an object name (or empty if none) and a behavior name (or empty if
-   * return the index of the first parameter that is inside the parenthesis: 
+   * none), return the index of the first parameter that is inside the
-   * 0, 1 or 2.
+   * parenthesis: 0, 1 or 2.
-   * 
+   *
-   * For example, in an expression like `Object.MyBehavior::Method("hello")`, the
+   * For example, in an expression like `Object.MyBehavior::Method("hello")`,
-   * parameter "hello" is the second parameter (the first being by convention Object,
+   * the parameter "hello" is the second parameter (the first being by
-   * and the second MyBehavior, also by convention).
+   * convention Object, and the second MyBehavior, also by convention).
    */
   static size_t WrittenParametersFirstIndex(const gd::String &objectName,
                                             const gd::String &behaviorName) {
@@ -403,9 +403,18 @@ class GD_CORE_API ExpressionParser2 {
     const gd::ExpressionMetadata &metadata =
         MetadataProvider::GetAnyExpressionMetadata(platform, functionFullName);
 
+    // In case we can't find a valid expression, ensure the node has the type
+    // that is requested by the parent, so we avoid putting "unknown" (which
+    // would be also correct, but less precise and would prevent completions to
+    // be shown to the user)
+    const gd::String returnType =
+        gd::MetadataProvider::IsBadExpressionMetadata(metadata) == true
+            ? type
+            : metadata.GetReturnType();
+
     auto parametersNode = Parameters(metadata.parameters);
     auto function =
-        gd::make_unique<FunctionCallNode>(metadata.GetReturnType(),
+        gd::make_unique<FunctionCallNode>(returnType,
                                           std::move(parametersNode.parameters),
                                           metadata,
                                           functionFullName);
@@ -458,9 +467,18 @@ class GD_CORE_API ExpressionParser2 {
           MetadataProvider::GetObjectAnyExpressionMetadata(
               platform, objectType, objectFunctionOrBehaviorName);
 
+      // In case we can't find a valid expression, ensure the node has the type
+      // that is requested by the parent, so we avoid putting "unknown" (which
+      // would be also correct, but less precise and would prevent completions
+      // to be shown to the user)
+      const gd::String returnType =
+          gd::MetadataProvider::IsBadExpressionMetadata(metadata) == true
+              ? type
+              : metadata.GetReturnType();
+
       auto parametersNode = Parameters(metadata.parameters, objectName);
       auto function = gd::make_unique<FunctionCallNode>(
-          metadata.GetReturnType(),
+          returnType,
           objectName,
           std::move(parametersNode.parameters),
           metadata,
@@ -520,10 +538,19 @@ class GD_CORE_API ExpressionParser2 {
           MetadataProvider::GetBehaviorAnyExpressionMetadata(
               platform, behaviorType, functionName);
 
+      // In case we can't find a valid expression, ensure the node has the type
+      // that is requested by the parent, so we avoid putting "unknown" (which
+      // would be also correct, but less precise and would prevent completions
+      // to be shown to the user)
+      const gd::String returnType =
+          gd::MetadataProvider::IsBadExpressionMetadata(metadata) == true
+              ? type
+              : metadata.GetReturnType();
+
       auto parametersNode =
           Parameters(metadata.parameters, objectName, behaviorName);
       auto function = gd::make_unique<FunctionCallNode>(
-          metadata.GetReturnType(),
+          returnType,
           objectName,
           behaviorName,
           std::move(parametersNode.parameters),

Core/GDCore/Events/Parsers/ExpressionParser2Node.h

@@ -21,7 +21,7 @@ class ExpressionMetadata;
 
 namespace gd {
 
-struct ExpressionParserLocation {
+struct GD_CORE_API ExpressionParserLocation {
   ExpressionParserLocation() : isValid(false){};
   ExpressionParserLocation(size_t position)
       : isValid(true), startPosition(position), endPosition(position){};
@@ -42,7 +42,8 @@ struct ExpressionParserLocation {
 /**
  * \brief A diagnostic that can be attached to a gd::ExpressionNode.
  */
-struct ExpressionParserDiagnostic {
+struct GD_CORE_API ExpressionParserDiagnostic {
+  virtual ~ExpressionParserDiagnostic() = default;
   virtual bool IsError() { return false; }
   virtual const gd::String &GetMessage() { return noMessage; }
   virtual size_t GetStartPosition() { return 0; }
@@ -55,7 +56,7 @@ struct ExpressionParserDiagnostic {
 /**
  * \brief An error that can be attached to a gd::ExpressionNode.
  */
-struct ExpressionParserError : public ExpressionParserDiagnostic {
+struct GD_CORE_API ExpressionParserError : public ExpressionParserDiagnostic {
   ExpressionParserError(const gd::String &type_,
                         const gd::String &message_,
                         size_t position_)
@@ -84,7 +85,7 @@ struct ExpressionParserError : public ExpressionParserDiagnostic {
  * \brief The base node, from which all nodes in the tree of
  * an expression inherits from.
  */
-struct ExpressionNode {
+struct GD_CORE_API ExpressionNode {
   ExpressionNode(const gd::String &type_) : type(type_){};
   virtual ~ExpressionNode(){};
   virtual void Visit(ExpressionParser2NodeWorker &worker){};
@@ -103,7 +104,7 @@ struct ExpressionNode {
                     // gd::ParameterMetadata::IsExpression or "unknown".
 };
 
-struct SubExpressionNode : public ExpressionNode {
+struct GD_CORE_API SubExpressionNode : public ExpressionNode {
   SubExpressionNode(const gd::String &type_,
                     std::unique_ptr<ExpressionNode> expression_)
       : ExpressionNode(type_), expression(std::move(expression_)){};
@@ -118,7 +119,7 @@ struct SubExpressionNode : public ExpressionNode {
 /**
  * \brief An operator node. For example: "lhs + rhs".
  */
-struct OperatorNode : public ExpressionNode {
+struct GD_CORE_API OperatorNode : public ExpressionNode {
   OperatorNode(const gd::String &type_, gd::String::value_type op_)
       : ExpressionNode(type_), op(op_){};
   virtual ~OperatorNode(){};
@@ -134,7 +135,7 @@ struct OperatorNode : public ExpressionNode {
 /**
  * \brief A unary operator node. For example: "-2".
  */
-struct UnaryOperatorNode : public ExpressionNode {
+struct GD_CORE_API UnaryOperatorNode : public ExpressionNode {
   UnaryOperatorNode(const gd::String &type_, gd::String::value_type op_)
       : ExpressionNode(type_), op(op_){};
   virtual ~UnaryOperatorNode(){};
@@ -150,7 +151,7 @@ struct UnaryOperatorNode : public ExpressionNode {
  * \brief A number node. For example: "123".
  * Its `type` is always "number".
  */
-struct NumberNode : public ExpressionNode {
+struct GD_CORE_API NumberNode : public ExpressionNode {
   NumberNode(const gd::String &number_)
       : ExpressionNode("number"), number(number_){};
   virtual ~NumberNode(){};
@@ -166,7 +167,7 @@ struct NumberNode : public ExpressionNode {
  * \brief A text node. For example: "Hello World".
  * Its `type` is always "string".
  */
-struct TextNode : public ExpressionNode {
+struct GD_CORE_API TextNode : public ExpressionNode {
   TextNode(const gd::String &text_) : ExpressionNode("string"), text(text_){};
   virtual ~TextNode(){};
   virtual void Visit(ExpressionParser2NodeWorker &worker) {
@@ -176,7 +177,7 @@ struct TextNode : public ExpressionNode {
   gd::String text;
 };
 
-struct VariableAccessorOrVariableBracketAccessorNode : public ExpressionNode {
+struct GD_CORE_API VariableAccessorOrVariableBracketAccessorNode : public ExpressionNode {
   VariableAccessorOrVariableBracketAccessorNode() : ExpressionNode(""){};
 
   std::unique_ptr<VariableAccessorOrVariableBracketAccessorNode> child;
@@ -190,7 +191,7 @@ struct VariableAccessorOrVariableBracketAccessorNode : public ExpressionNode {
  * \see gd::VariableAccessorNode
  * \see gd::VariableBracketAccessorNode
  */
-struct VariableNode : public ExpressionNode {
+struct GD_CORE_API VariableNode : public ExpressionNode {
   VariableNode(const gd::String &type_,
                const gd::String &name_,
                const gd::String &objectName_)
@@ -213,7 +214,7 @@ struct VariableNode : public ExpressionNode {
  * \brief A bracket accessor of a variable. Example: MyChild
  * in MyVariable.MyChild
  */
-struct VariableAccessorNode
+struct GD_CORE_API VariableAccessorNode
     : public VariableAccessorOrVariableBracketAccessorNode {
   VariableAccessorNode(const gd::String &name_) : name(name_){};
   virtual ~VariableAccessorNode(){};
@@ -230,7 +231,7 @@ struct VariableAccessorNode
  * \brief A bracket accessor of a variable. Example: ["MyChild"]
  * (in MyVariable["MyChild"]).
  */
-struct VariableBracketAccessorNode
+struct GD_CORE_API VariableBracketAccessorNode
     : public VariableAccessorOrVariableBracketAccessorNode {
   VariableBracketAccessorNode(std::unique_ptr<ExpressionNode> expression_)
       : expression(std::move(expression_)){};
@@ -242,7 +243,7 @@ struct VariableBracketAccessorNode
   std::unique_ptr<ExpressionNode> expression;
 };
 
-struct IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode
+struct GD_CORE_API IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode
     : public ExpressionNode {
   IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode(
       const gd::String &type)
@@ -252,7 +253,7 @@ struct IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode
 /**
  * \brief An identifier node, usually representing an object or a function name.
  */
-struct IdentifierNode
+struct GD_CORE_API IdentifierNode
     : public IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode {
   IdentifierNode(const gd::String &identifierName_, const gd::String &type_)
       : IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode(type_),
@@ -265,7 +266,7 @@ struct IdentifierNode
   gd::String identifierName;
 };
 
-struct FunctionCallOrObjectFunctionNameOrEmptyNode
+struct GD_CORE_API FunctionCallOrObjectFunctionNameOrEmptyNode
     : public IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode {
   FunctionCallOrObjectFunctionNameOrEmptyNode(const gd::String &type)
       : IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode(type){};
@@ -278,7 +279,7 @@ struct FunctionCallOrObjectFunctionNameOrEmptyNode
  * For example: "MyObject.Function" or "MyObject.Physics" or
  * "MyObject.Physics::LinearVelocity".
  */
-struct ObjectFunctionNameNode
+struct GD_CORE_API ObjectFunctionNameNode
     : public FunctionCallOrObjectFunctionNameOrEmptyNode {
   ObjectFunctionNameNode(const gd::String &type_,
                          const gd::String &objectName_,
@@ -331,7 +332,7 @@ struct ObjectFunctionNameNode
  * For example: "MyExtension::MyFunction(1, 2)", "MyObject.Function()" or
  * "MyObject.Physics::LinearVelocity()".
  */
-struct FunctionCallNode : public FunctionCallOrObjectFunctionNameOrEmptyNode {
+struct GD_CORE_API FunctionCallNode : public FunctionCallOrObjectFunctionNameOrEmptyNode {
   /** \brief Construct a free function call node. */
   FunctionCallNode(const gd::String &type_,
                    std::vector<std::unique_ptr<ExpressionNode>> parameters_,
@@ -399,7 +400,7 @@ struct FunctionCallNode : public FunctionCallOrObjectFunctionNameOrEmptyNode {
  * \brief An empty node, used when parsing failed/a syntax error was
  * encountered and any other node could not make sense.
  */
-struct EmptyNode : public FunctionCallOrObjectFunctionNameOrEmptyNode {
+struct GD_CORE_API EmptyNode : public FunctionCallOrObjectFunctionNameOrEmptyNode {
   EmptyNode(const gd::String &type_, const gd::String &text_ = "")
       : FunctionCallOrObjectFunctionNameOrEmptyNode(type_), text(text_){};
   virtual ~EmptyNode(){};

Core/GDCore/Events/Parsers/ExpressionParser2NodeWorker.h

@@ -7,21 +7,21 @@
 #define GDCORE_EXPRESSIONPARSER2NODEWORKER_H
 
 namespace gd {
-class ExpressionNode;
+struct ExpressionNode;
-class SubExpressionNode;
+struct SubExpressionNode;
-class OperatorNode;
+struct OperatorNode;
-class UnaryOperatorNode;
+struct UnaryOperatorNode;
-class NumberNode;
+struct NumberNode;
-class TextNode;
+struct TextNode;
-class VariableNode;
+struct VariableNode;
-class VariableAccessorNode;
+struct VariableAccessorNode;
-class VariableBracketAccessorNode;
+struct VariableBracketAccessorNode;
-class IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode;
+struct IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode;
-class IdentifierNode;
+struct IdentifierNode;
-class FunctionCallOrObjectFunctionNameOrEmptyNode;
+struct FunctionCallOrObjectFunctionNameOrEmptyNode;
-class ObjectFunctionNameNode;
+struct ObjectFunctionNameNode;
-class FunctionCallNode;
+struct FunctionCallNode;
-class EmptyNode;
+struct EmptyNode;
 }  // namespace gd
 
 namespace gd {
@@ -34,21 +34,21 @@ namespace gd {
  * \see gd::ExpressionNode
  */
 class GD_CORE_API ExpressionParser2NodeWorker {
-  friend class ExpressionNode;
+  friend struct ExpressionNode;
-  friend class SubExpressionNode;
+  friend struct SubExpressionNode;
-  friend class OperatorNode;
+  friend struct OperatorNode;
-  friend class UnaryOperatorNode;
+  friend struct UnaryOperatorNode;
-  friend class NumberNode;
+  friend struct NumberNode;
-  friend class TextNode;
+  friend struct TextNode;
-  friend class VariableNode;
+  friend struct VariableNode;
-  friend class VariableAccessorNode;
+  friend struct VariableAccessorNode;
-  friend class VariableBracketAccessorNode;
+  friend struct VariableBracketAccessorNode;
-  friend class IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode;
+  friend struct IdentifierOrFunctionCallOrObjectFunctionNameOrEmptyNode;
-  friend class IdentifierNode;
+  friend struct IdentifierNode;
-  friend class FunctionCallOrObjectFunctionNameOrEmptyNode;
+  friend struct FunctionCallOrObjectFunctionNameOrEmptyNode;
-  friend class ObjectFunctionNameNode;
+  friend struct ObjectFunctionNameNode;
-  friend class FunctionCallNode;
+  friend struct FunctionCallNode;
-  friend class EmptyNode;
+  friend struct EmptyNode;
 
  public:
   virtual ~ExpressionParser2NodeWorker();

Core/GDCore/Extensions/Builtin/AdvancedExtension.cpp

@@ -18,7 +18,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAdvancedExtension(
       "Florian Rival",
       "Open source (MIT License)");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddCondition("Toujours",
                     _("Always"),
@@ -104,7 +103,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAdvancedExtension(
           _("Functions"),
           "res/function16.png")
       .AddParameter("string", "Parameter name");
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/AllBuiltinExtensions.h

@@ -32,7 +32,6 @@ class GD_CORE_API BuiltinExtensionsImplementer {
   static void ImplementsExternalLayoutsExtension(
       gd::PlatformExtension& extension);
   static void ImplementsFileExtension(gd::PlatformExtension& extension);
-  static void ImplementsJoystickExtension(gd::PlatformExtension& extension);
   static void ImplementsKeyboardExtension(gd::PlatformExtension& extension);
   static void ImplementsMathematicalToolsExtension(
       gd::PlatformExtension& extension);

Core/GDCore/Extensions/Builtin/AudioExtension.cpp

@@ -21,7 +21,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/audio");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddAction("PlaySoundCanal",
                  _("Play a sound on a channel"),
@@ -579,7 +578,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsAudioExtension(
                      "res/conditions/volume.png")
       .AddCodeOnlyParameter("currentScene", "");
 
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/BaseObjectExtension.cpp

@@ -25,7 +25,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
   gd::ObjectMetadata& obj = extension.AddObject<gd::Object>(
       "", _("Base object"), _("Base object"), "res/objeticon24.png");
 
-#if defined(GD_IDE_ONLY)
   obj.AddCondition("PosX",
                    _("X position"),
                    _("Compare the X position of the object."),
@@ -84,9 +83,9 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                 "res/actions/position.png")
 
       .AddParameter("object", _("Object"))
-      .AddParameter("operator", _("Modification's sign"))
+      .AddParameter("operator", _("Modification's sign"), "number")
       .AddParameter("expression", _("X position"))
-      .AddParameter("operator", _("Modification's sign"))
+      .AddParameter("operator", _("Modification's sign"), "number")
       .AddParameter("expression", _("Y position"))
       .MarkAsSimple();
 
@@ -99,15 +98,15 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                 "res/actions/position24.png",
                 "res/actions/position.png")
       .AddParameter("object", _("Object"))
-      .AddParameter("operator", _("Modification's sign"))
+      .AddParameter("operator", _("Modification's sign"), "number")
       .AddParameter("expression", _("X position"))
-      .AddParameter("operator", _("Modification's sign"))
+      .AddParameter("operator", _("Modification's sign"), "number")
       .AddParameter("expression", _("Y position"))
       .MarkAsSimple();
 
   obj.AddExpressionAndConditionAndAction("number", "CenterX",
           _("Center X position"),
-          _("the X position of the center"),
+          _("the X position of the center of rotation"),
           _("the X position of the center"),
           _("Position/Center"),
           "res/actions/position24.png")
@@ -116,13 +115,67 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
 
   obj.AddExpressionAndConditionAndAction("number", "CenterY",
           _("Center Y position"),
-          _("the Y position of the center"),
+          _("the Y position of the center of rotation"),
           _("the Y position of the center"),
           _("Position/Center"),
           "res/actions/position24.png")
       .AddParameter("object", _("Object"))
       .UseStandardParameters("number");
 
+  obj.AddExpressionAndCondition("number", "BoundingBoxLeft",
+          _("Bounding box left position"),
+          _("the bounding box (the area encapsulating the object) left position"),
+          _("the bounding box left position"),
+          _("Position/Bounding Box"),
+          "res/conditions/bounding-box-left.svg")
+      .AddParameter("object", _("Object"))
+      .UseStandardParameters("number");
+
+  obj.AddExpressionAndCondition("number", "BoundingBoxTop",
+          _("Bounding box top position"),
+          _("the bounding box (the area encapsulating the object) top position"),
+          _("the bounding box top position"),
+          _("Position/Bounding Box"),
+          "res/conditions/bounding-box-top.svg")
+      .AddParameter("object", _("Object"))
+      .UseStandardParameters("number");
+
+  obj.AddExpressionAndCondition("number", "BoundingBoxRight",
+          _("Bounding box right position"),
+          _("the bounding box (the area encapsulating the object) right position"),
+          _("the bounding box right position"),
+          _("Position/Bounding Box"),
+          "res/conditions/bounding-box-right.svg")
+      .AddParameter("object", _("Object"))
+      .UseStandardParameters("number");
+
+  obj.AddExpressionAndCondition("number", "BoundingBoxBottom",
+          _("Bounding box bottom position"),
+          _("the bounding box (the area encapsulating the object) bottom position"),
+          _("the bounding box bottom position"),
+          _("Position/Bounding Box"),
+          "res/conditions/bounding-box-bottom.svg")
+      .AddParameter("object", _("Object"))
+      .UseStandardParameters("number");
+
+  obj.AddExpressionAndCondition("number", "BoundingBoxCenterX",
+          _("Bounding box center X position"),
+          _("the bounding box (the area encapsulating the object) center X position"),
+          _("the bounding box center X position"),
+          _("Position/Bounding Box"),
+          "res/conditions/bounding-box-center.svg")
+      .AddParameter("object", _("Object"))
+      .UseStandardParameters("number");
+
+  obj.AddExpressionAndCondition("number", "BoundingBoxCenterY",
+          _("Bounding box center Y position"),
+          _("the bounding box (the area encapsulating the object) center Y position"),
+          _("the bounding box center Y position"),
+          _("Position/Bounding Box"),
+          "res/conditions/bounding-box-center.svg")
+      .AddParameter("object", _("Object"))
+      .UseStandardParameters("number");
+
   obj.AddAction("MettreAutourPos",
                 _("Put around a position"),
                 _("Position the center of the given object around a position, "
@@ -156,7 +209,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                 _("Rotate"),
                 _("Rotate an object, clockwise if the speed is positive, "
                   "counterclockwise otherwise."),
-                _("Rotate _PARAM0_ at speed _PARAM1_deg/second"),
+                _("Rotate _PARAM0_ at speed _PARAM1_ deg/second"),
                 _("Angle"),
                 "res/actions/direction24.png",
                 "res/actions/direction.png")
@@ -170,7 +223,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
          "RotateTowardAngle",
          _("Rotate toward angle"),
          _("Rotate an object towards an angle with the specified speed."),
-         _("Rotate _PARAM0_ towards _PARAM1_ at speed _PARAM2_deg/second"),
+         _("Rotate _PARAM0_ towards _PARAM1_ at speed _PARAM2_ deg/second"),
          _("Angle"),
          "res/actions/direction24.png",
          "res/actions/direction.png")
@@ -186,7 +239,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
          _("Rotate toward position"),
          _("Rotate an object towards a position, with the specified speed."),
          _("Rotate _PARAM0_ towards _PARAM1_;_PARAM2_ at speed "
-           "_PARAM3_deg/second"),
+           "_PARAM3_ deg/second"),
          _("Angle"),
          "res/actions/direction24.png",
          "res/actions/direction.png")
@@ -344,7 +397,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
   obj.AddAction("SetObjectVariableAsBoolean",
                 _("Boolean value of an object variable"),
                 _("Change the boolean value of an object variable."),
-                _("Set the boolean value of the variable _PARAM1_ of object "
+                _("Set the boolean value of variable _PARAM1_ of "
                   "_PARAM0_ to _PARAM2_"),
                 _("Variables"),
                 "res/actions/var24.png",
@@ -360,7 +413,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
          _("Toggles the boolean value of an object variable.") + "\n" +
              _("If it was true, it will become false, and if it was false "
                "it will become true."),
-         _("Toggle the boolean value of the variable _PARAM1_ of object "
+         _("Toggle the boolean value of variable _PARAM1_ of "
            "_PARAM0_"),
          _("Variables"),
          "res/actions/var24.png",
@@ -795,8 +848,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
 
   obj.AddCondition(
          "ObjectTimer",
-         _("Value of a timer"),
+         _("Value of an object timer"),
-         _("Test the elapsed time of a timer."),
+         _("Test the elapsed time of an object timer."),
          _("The timer _PARAM1_ of _PARAM0_ is greater than _PARAM2_ seconds"),
          _("Timers"),
          "res/conditions/timer24.png",
@@ -806,8 +859,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
       .AddParameter("expression", _("Time in seconds"));
 
   obj.AddCondition("ObjectTimerPaused",
-                   _("Timer paused"),
+                   _("Object timer paused"),
-                   _("Test if specified timer is paused."),
+                   _("Test if specified object timer is paused."),
                    _("The timer _PARAM1_ of _PARAM0_ is paused"),
                    _("Timers"),
                    "res/conditions/timerPaused24.png",
@@ -817,8 +870,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
       .MarkAsAdvanced();
 
   obj.AddAction("ResetObjectTimer",
-                _("Start (or reset) a timer"),
+                _("Start (or reset) an object timer"),
-                _("Reset the specified timer, if the timer doesn't exist "
+                _("Reset the specified object timer, if the timer doesn't exist "
                   "it's created and started."),
                 _("Reset the timer _PARAM1_ of _PARAM0_"),
                 _("Timers"),
@@ -828,8 +881,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
       .AddParameter("string", _("Timer's name"));
 
   obj.AddAction("PauseObjectTimer",
-                _("Pause a timer"),
+                _("Pause an object timer"),
-                _("Pause a timer."),
+                _("Pause an object timer."),
                 _("Pause timer _PARAM1_ of _PARAM0_"),
                 _("Timers"),
                 "res/actions/pauseTimer24.png",
@@ -839,8 +892,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
       .MarkAsAdvanced();
 
   obj.AddAction("UnPauseObjectTimer",
-                _("Unpause a timer"),
+                _("Unpause an object timer"),
-                _("Unpause a timer."),
+                _("Unpause an object timer."),
                 _("Unpause timer _PARAM1_ of _PARAM0_"),
                 _("Timers"),
                 "res/actions/unPauseTimer24.png",
@@ -850,8 +903,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
       .MarkAsAdvanced();
 
   obj.AddAction("RemoveObjectTimer",
-                _("Delete a timer"),
+                _("Delete an object timer"),
-                _("Delete a timer from memory."),
+                _("Delete an object timer from memory."),
                 _("Delete timer _PARAM1_ of _PARAM0_ from memory"),
                 _("Timers"),
                 "res/actions/timer24.png",
@@ -1021,9 +1074,9 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
       .AddParameter("objectvar", _("Variable"));
 
   obj.AddExpression("ObjectTimerElapsedTime",
-                    _("Timer value"),
+                    _("Object timer value"),
-                    _("Value of a timer"),
+                    _("Value of an object timer"),
-                    _("Timers"),
+                    _("Object timers"),
                     "res/actions/time.png")
       .AddParameter("object", _("Object"))
       .AddParameter("string", _("Timer's name"));
@@ -1072,11 +1125,79 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
       .AddParameter("expression", _("Target X position"))
       .AddParameter("expression", _("Target Y position"));
 
+  obj.AddAction("EnableEffect",
+                _("Enable an object effect"),
+                _("Enable an effect on the object"),
+                _("Enable effect _PARAM1_ on _PARAM0_: _PARAM2_"),
+                _("Effects"),
+                "res/actions/effect24.png",
+                "res/actions/effect.png")
+      .AddParameter("object", _("Object"))
+      .AddParameter("objectEffectName", _("Effect name"))
+      .AddParameter("yesorno", _("Enable?"))
+      .MarkAsSimple();
+
+  obj.AddAction("SetEffectDoubleParameter",
+                _("Effect parameter (number)"),
+                _("Change the value of a parameter of an effect.") + "\n" +
+                  _("You can find the parameter names (and change the effect "
+                    "names) in the effects window."),
+                _("Set _PARAM2_ to _PARAM3_ for effect _PARAM1_ of _PARAM0_"),
+                _("Effects"),
+                "res/actions/effect24.png",
+                "res/actions/effect.png")
+      .AddParameter("object", _("Object"))
+      .AddParameter("objectEffectName", _("Effect name"))
+      .AddParameter("objectEffectParameterName", _("Parameter name"))
+      .AddParameter("expression", _("New value"))
+      .MarkAsSimple();
+
+  obj.AddAction("SetEffectStringParameter",
+                _("Effect parameter (string)"),
+                _("Change the value (string) of a parameter of an effect.") + "\n" +
+                  _("You can find the parameter names (and change the effect "
+                    "names) in the effects window."),
+                _("Set _PARAM2_ to _PARAM3_ for effect _PARAM1_ of _PARAM0_"),
+                _("Effects"),
+                "res/actions/effect24.png",
+                "res/actions/effect.png")
+      .AddParameter("object", _("Object"))
+      .AddParameter("objectEffectName", _("Effect name"))
+      .AddParameter("objectEffectParameterName", _("Parameter name"))
+      .AddParameter("string", _("New value"))
+      .MarkAsSimple();
+
+  obj.AddAction("SetEffectBooleanParameter",
+                _("Effect parameter (enable or disable)"),
+                _("Enable or disable a parameter of an effect.") + "\n" +
+                  _("You can find the parameter names (and change the effect "
+                    "names) in the effects window."),
+                _("Enable _PARAM2_ for effect _PARAM1_ of _PARAM0_: _PARAM3_"),
+                _("Effects"),
+                "res/actions/effect24.png",
+                "res/actions/effect.png")
+      .AddParameter("object", _("Object"))
+      .AddParameter("objectEffectName", _("Effect name"))
+      .AddParameter("objectEffectParameterName", _("Parameter name"))
+      .AddParameter("yesorno", _("Enable?"))
+      .MarkAsSimple();
+
+  obj.AddCondition("IsEffectEnabled",
+                  _("Effect is enabled"),
+                  _("Check if the effect on an object is enabled."),
+                  _("Effect _PARAM1_ of _PARAM0_ is enabled"),
+                  _("Effects"),
+                  "res/actions/effect24.png",
+                  "res/actions/effect.png")
+      .AddParameter("object", _("Object"))
+      .AddParameter("objectEffectName", _("Effect name"))
+      .MarkAsSimple();
+
   extension
       .AddAction("Create",
                  _("Create an object"),
                  _("Create an object at specified position"),
-                 _("Create object _PARAM1_ at position _PARAM2_;_PARAM3_"),
+                 _("Create object _PARAM1_ at position _PARAM2_;_PARAM3_ (layer: _PARAM4_)"),
                  _("Objects"),
                  "res/actions/create24.png",
                  "res/actions/create.png")
@@ -1094,7 +1215,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                  _("Among the objects of the specified group, this action will "
                    "create the object with the specified name."),
                  _("Among objects _PARAM1_, create object named _PARAM2_ at "
-                   "position _PARAM3_;_PARAM4_"),
+                   "position _PARAM3_;_PARAM4_ (layer: _PARAM5_)"),
                  _("Objects"),
                  "res/actions/create24.png",
                  "res/actions/create.png")
@@ -1373,7 +1494,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsBaseObjectExtension(
                        _("Objects"),
                        "res/actions/layer.png")
       .AddParameter("object", _("Object"));
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/CameraExtension.cpp

@@ -24,7 +24,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/interface/scene-editor/layers-and-cameras");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddExpressionAndConditionAndAction(
           "number",
@@ -342,8 +341,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
-      .AddParameter("string", _("Effect"))
+      .AddParameter("layerEffectName", _("Effect name"))
-      .AddParameter("string", _("Parameter name"))
+      .AddParameter("layerEffectParameterName", _("Parameter name"))
       .AddParameter("expression", _("New value"))
       .MarkAsAdvanced();
 
@@ -361,8 +360,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
-      .AddParameter("string", _("Effect"))
+      .AddParameter("layerEffectName", _("Effect name"))
-      .AddParameter("string", _("Parameter name"))
+      .AddParameter("layerEffectParameterName", _("Parameter name"))
       .AddParameter("string", _("New value"))
       .MarkAsAdvanced();
 
@@ -380,8 +379,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
-      .AddParameter("string", _("Effect"))
+      .AddParameter("layerEffectName", _("Effect name"))
-      .AddParameter("string", _("Parameter name"))
+      .AddParameter("layerEffectParameterName", _("Parameter name"))
       .AddParameter("yesorno", _("Enable this parameter"))
       .MarkAsAdvanced();
 
@@ -396,7 +395,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
-      .AddParameter("string", _("Effect"))
+      .AddParameter("layerEffectName", _("Effect name"))
       .MarkAsAdvanced();
 
   extension
@@ -410,7 +409,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("layer", _("Layer (base layer if empty)"), "", true)
       .SetDefaultValue("\"\"")
-      .AddParameter("string", _("Effect"))
+      .AddParameter("layerEffectName", _("Effect name"))
       .AddParameter("yesorno", _("Enable"), "", true)
       .MarkAsAdvanced();
 
@@ -420,7 +419,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
           _("Layer time scale"),
           _("Compare the time scale applied to the objects of the layer."),
           _("the time scale of layer _PARAM1_"),
-          _("Layers and cameras/Time"),
+          _("Layers and cameras"),
           "res/conditions/time24.png",
           "res/conditions/time.png")
       .AddCodeOnlyParameter("currentScene", "")
@@ -434,8 +433,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
           "ChangeLayerTimeScale",
           _("Change layer time scale"),
           _("Change the time scale applied to the objects of the layer."),
-          _("Set time scale of layer _PARAM1_ to _PARAM2_"),
+          _("Set the time scale of layer _PARAM1_ to _PARAM2_"),
-          _("Layers and cameras/Time"),
+          _("Layers and cameras"),
           "res/actions/time24.png",
           "res/actions/time.png")
       .AddCodeOnlyParameter("currentScene", "")
@@ -552,8 +551,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
 
   extension
       .AddExpression("LayerTimeScale",
-                     _("Time scale"),
+                     _("Layer time scale"),
-                     _("Time scale"),
+                     _("Returns the time scale of the specified layer."),
                      _("Layers and cameras"),
                      "res/actions/time.png")
       .AddCodeOnlyParameter("currentScene", "")
@@ -567,7 +566,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsCameraExtension(
                      "res/actions/camera.png")
       .AddCodeOnlyParameter("currentScene", "")
       .AddParameter("layer", _("Layer"));
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/CommonConversionsExtension.cpp

@@ -21,7 +21,6 @@ BuiltinExtensionsImplementer::ImplementsCommonConversionsExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/common-conversions");
 
-#if defined(GD_IDE_ONLY)
 
   extension
       .AddExpression("ToNumber",
@@ -65,7 +64,6 @@ BuiltinExtensionsImplementer::ImplementsCommonConversionsExtension(
           _("Conversion"),
           "res/conditions/toujours24.png")
       .AddParameter("expression", _("Angle, in radians"));
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/CommonInstructionsExtension.cpp

@@ -5,7 +5,6 @@
  */
 #include "AllBuiltinExtensions.h"
 #include "GDCore/Tools/Localization.h"
-#if defined(GD_IDE_ONLY)
 #include "GDCore/Events/Builtin/CommentEvent.h"
 #include "GDCore/Events/Builtin/ForEachChildVariableEvent.h"
 #include "GDCore/Events/Builtin/ForEachEvent.h"
@@ -15,7 +14,6 @@
 #include "GDCore/Events/Builtin/StandardEvent.h"
 #include "GDCore/Events/Builtin/WhileEvent.h"
 #include "GDCore/Events/Event.h"
-#endif
 
 using namespace std;
 namespace gd {
@@ -33,7 +31,6 @@ BuiltinExtensionsImplementer::ImplementsCommonInstructionsExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/advanced-conditions");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddCondition("Or",
                     _("Or"),
@@ -86,29 +83,29 @@ BuiltinExtensionsImplementer::ImplementsCommonInstructionsExtension(
       std::make_shared<gd::StandardEvent>());
 
   extension.AddEvent("Link",
-                     _("Link"),
+                     _("Link external events"),
-                     _("Link to some external events"),
+                     _("Link to external events."),
                      "",
                      "res/lienaddicon.png",
                      std::make_shared<gd::LinkEvent>());
 
   extension.AddEvent("Comment",
                      _("Comment"),
-                     _("Event displaying a text in the events editor"),
+                     _("Event displaying a text in the events editor."),
                      "",
                      "res/comment.png",
                      std::make_shared<gd::CommentEvent>());
 
   extension.AddEvent("While",
                      _("While"),
-                     _("The event is repeated while the conditions are true"),
+                     _("Repeat the event while the conditions are true."),
                      "",
                      "res/while.png",
                      std::make_shared<gd::WhileEvent>());
 
   extension.AddEvent("Repeat",
                      _("Repeat"),
-                     _("Event repeated a number of times"),
+                     _("Repeat the event for a specified number of times."),
                      "",
                      "res/repeat.png",
                      std::make_shared<gd::RepeatEvent>());
@@ -129,12 +126,11 @@ BuiltinExtensionsImplementer::ImplementsCommonInstructionsExtension(
       std::make_shared<gd::ForEachChildVariableEvent>());
 
   extension.AddEvent("Group",
-                     _("Group"),
+                     _("Event group"),
-                     _("Group containing events"),
+                     _("Group containing events."),
                      "",
                      "res/foreach.png",
                      std::make_shared<gd::GroupEvent>());
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/ExternalLayoutsExtension.cpp

@@ -21,7 +21,6 @@ BuiltinExtensionsImplementer::ImplementsExternalLayoutsExtension(
                                "Open source (MIT License)")
       .SetExtensionHelpPath("/interface/scene-editor/external-layouts");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddAction("CreateObjectsFromExternalLayout",
                  _("Create objects from an external layout"),
@@ -37,7 +36,6 @@ BuiltinExtensionsImplementer::ImplementsExternalLayoutsExtension(
       .AddParameter("expression", _("Y position of the origin"), "", true)
       .SetDefaultValue("0")
       .MarkAsAdvanced();
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/FileExtension.cpp

@@ -22,7 +22,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsFileExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/storage");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddCondition(
           "GroupExists",
@@ -194,7 +193,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsFileExtension(
                  "res/actions/launchFile.png")
       .AddParameter("string", _("Command"))
       .MarkAsAdvanced();
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/JoystickExtension.cpp

@@ -1,77 +0,0 @@
-/*
- * GDevelop Core
- * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
- * reserved. This project is released under the MIT License.
- */
-#include "AllBuiltinExtensions.h"
-#include "GDCore/Tools/Localization.h"
-
-using namespace std;
-namespace gd {
-
-void GD_CORE_API BuiltinExtensionsImplementer::ImplementsJoystickExtension(
-    gd::PlatformExtension& extension) {
-  extension
-      .SetExtensionInformation(
-          "BuiltinJoystick",
-          _("Joysticks features"),
-          "Built-in extension that enables the use of joysticks.",
-          "Florian Rival",
-          "Open source (MIT License)")
-      .SetExtensionHelpPath("" /*TODO: Add a documentation page for this */);
-
-#if defined(GD_IDE_ONLY)
-  extension
-      .AddCondition("JoystickButtonDown",
-                    _("A button on a joystick is pressed"),
-                    _("Test if a button on a joystick is pressed."),
-                    _("The button _PARAM2_ of joystick _PARAM1_ is pressed"),
-                    _("Joystick"),
-                    "res/conditions/joystick24.png",
-                    "res/conditions/joystick.png")
-      .AddCodeOnlyParameter("currentScene", "")
-      .AddParameter("expression", _("Joystick number (first joystick: 0)"))
-      .AddParameter("expression", _("Button"));
-
-  extension
-      .AddCondition("JoystickAxis",
-                    _("Value of an axis of a joystick"),
-                    _("Test the value of an axis of a joystick."),
-                    _("the value of the axis _PARAM2_ of joystick _PARAM1_"),
-                    _("Joystick"),
-                    "res/conditions/joystick24.png",
-                    "res/conditions/joystick.png")
-      .AddCodeOnlyParameter("currentScene", "")
-      .AddParameter("expression", _("Joystick number (first joystick: 0)"))
-      .AddParameter("joyaxis", _("Axis"))
-      .UseStandardRelationalOperatorParameters("number");
-
-  extension
-      .AddAction(
-          "GetJoystickAxis",
-          _("Get the value of the axis of a joystick"),
-          _("Save the value of the axis of the joystick (from -100 to 100)."),
-          _("Save in _PARAM3_ the value of axis _PARAM2_ of joystick _PARAM1_"),
-          _("Joystick"),
-          "res/actions/joystick24.png",
-          "res/actions/joystick.png")
-      .AddCodeOnlyParameter("currentScene", "")
-      .AddParameter("expression", _("Joystick number (first joystick: 0)"))
-      .AddParameter("joyaxis", _("Axis"))
-      .AddParameter("scenevar", _("Save the result to the scene variable"))
-      .SetManipulatedType("number");
-
-  extension
-      .AddExpression("GetJoystickAxis",
-                     _("Joystick axis"),
-                     _("Value of an axis of a joystick"),
-                     _("Joystick"),
-                     "res/conditions/joystick.png")
-
-      .AddCodeOnlyParameter("currentScene", "")
-      .AddParameter("expression", _("Joystick number (first joystick: 0)"))
-      .AddParameter("joyaxis", _("Axis"));
-#endif
-}
-
-}  // namespace gd

Core/GDCore/Extensions/Builtin/KeyboardExtension.cpp

@@ -23,11 +23,10 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsKeyboardExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/keyboard");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddCondition("KeyPressed",
                     _("Key pressed"),
-                    _("Test if a key is pressed"),
+                    _("Check if a key is pressed"),
                     _("_PARAM1_ key is pressed"),
                     _("Keyboard"),
                     "res/conditions/keyboard24.png",
@@ -38,7 +37,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsKeyboardExtension(
   extension
       .AddCondition("KeyReleased",
                     _("Key released"),
-                    _("Test if a key was just released"),
+                    _("Check if a key was just released"),
                     _("_PARAM1_ key is released"),
                     _("Keyboard"),
                     "res/conditions/keyboard24.png",
@@ -49,33 +48,33 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsKeyboardExtension(
   extension
       .AddCondition("KeyFromTextPressed",
                     _("Key pressed (text expression)"),
-                    _("Test if a key, retrieved from the result of the "
+                    _("Check if a key, retrieved from the result of the "
                       "expression, is pressed"),
                     _("_PARAM1_ key is pressed"),
                     _("Keyboard"),
                     "res/conditions/keyboard24.png",
                     "res/conditions/keyboard.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .AddParameter("string", _("Expression generating the key to test"))
+      .AddParameter("string", _("Expression generating the key to check"))
       .MarkAsAdvanced();
 
   extension
       .AddCondition("KeyFromTextReleased",
                     _("Key released (text expression)"),
-                    _("Test if a key, retrieved from the result of the "
+                    _("Check if a key, retrieved from the result of the "
                       "expression, was just released"),
                     _("_PARAM1_ key is released"),
                     _("Keyboard"),
                     "res/conditions/keyboard24.png",
                     "res/conditions/keyboard.png")
       .AddCodeOnlyParameter("currentScene", "")
-      .AddParameter("string", _("Expression generating the key to test"))
+      .AddParameter("string", _("Expression generating the key to check"))
       .MarkAsAdvanced();
 
   extension
       .AddCondition("AnyKeyPressed",
                     _("Any key pressed"),
-                    _("Test if any key is pressed"),
+                    _("Check if any key is pressed"),
                     _("Any key is pressed"),
                     _("Keyboard"),
                     "res/conditions/keyboard24.png",
@@ -85,7 +84,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsKeyboardExtension(
  extension
       .AddCondition("AnyKeyReleased",
                     _("Any key released"),
-                    _("Test if any key is released"),
+                    _("Check if any key is released"),
                     _("Any key is released"),
                     _("Keyboard"),
                     "res/conditions/keyboard24.png",
@@ -100,7 +99,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsKeyboardExtension(
           _("Keyboard"),
           "res/conditions/keyboard.png")
       .AddCodeOnlyParameter("currentScene", "");
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/MathematicalToolsExtension.cpp

@@ -19,7 +19,6 @@ BuiltinExtensionsImplementer::ImplementsMathematicalToolsExtension(
       "Florian Rival",
       "Open source (MIT License)");
 
-#if defined(GD_IDE_ONLY)
 
   extension
       .AddExpression("normalize",
@@ -403,7 +402,6 @@ BuiltinExtensionsImplementer::ImplementsMathematicalToolsExtension(
       .AddParameter("expression", _("Angle, in degrees"))
       .AddParameter("expression", _("Distance"));
 
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/MouseExtension.cpp

@@ -25,7 +25,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/mouse-touch");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddCondition(
           "IsMouseWheelScrollingUp",
@@ -217,6 +216,39 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
       .AddParameter("mouse", _("Button to check"))
       .MarkAsSimple();
 
+  extension
+      .AddCondition(
+          "MouseButtonFromTextPressed",
+          _("Mouse button pressed or touch held (text expression)"),
+          _("Check if a mouse button, retrieved from the result of the "
+            "expression, is pressed."),
+          _("_PARAM1_ mouse button is pressed"),
+          _("Mouse and touch"),
+          "res/conditions/mouse24.png",
+          "res/conditions/mouse.png")
+      .AddCodeOnlyParameter("currentScene", "")
+      .AddParameter("string", _("Expression generating the button to check"))
+      .SetParameterLongDescription(
+          _("Possible values are Left, Right and Middle."))
+      .MarkAsAdvanced();
+
+  extension
+      .AddCondition(
+          "MouseButtonFromTextReleased",
+          _("Mouse button released (text expression)"),
+          _("Check if a mouse button, retrieved from the result of the "
+            "expression, was just released."),
+          _("_PARAM1_ mouse button is released"),
+          _("Mouse and touch"),
+          "res/conditions/mouse24.png",
+          "res/conditions/mouse.png")
+      .AddCodeOnlyParameter("currentScene", "")
+      .AddParameter("string",
+                    _("Expression generating the mouse button to check"))
+      .SetParameterLongDescription(
+          _("Possible values are Left, Right and Middle."))
+      .MarkAsAdvanced();
+
   extension
       .AddExpressionAndCondition("number",
                                  "TouchX",
@@ -302,8 +334,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsMouseExtension(
                      _("Mouse and touch/Multitouch"),
                      "res/conditions/touch.png")
       .AddCodeOnlyParameter("currentScene", "");
-
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/NetworkExtension.cpp

@@ -21,7 +21,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsNetworkExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/network");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddAction(
           "SendRequest",
@@ -196,7 +195,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsNetworkExtension(
                         "res/conditions/toujours24.png")
       .AddParameter("objectPtr", _("The object with the variable"))
       .AddParameter("objectvar", _("The object variable to be stringified"));
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/SceneExtension.cpp

@@ -20,7 +20,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSceneExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("" /*TODO: Add a documentation page for this */);
 
-#if defined(GD_IDE_ONLY)
 
   extension
       .AddExpression("Random",
@@ -196,7 +195,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSceneExtension(
                     "res/conditions/egal.png")
       .SetHelpPath("/all-features/advanced-conditions")
       .AddParameter("expression", _("First expression"))
-      .AddParameter("relationalOperator", _("Sign of the test"))
+      .AddParameter("relationalOperator", _("Sign of the test"), "number")
       .AddParameter("expression", _("Second expression"))
       .MarkAsAdvanced();
 
@@ -210,10 +209,9 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSceneExtension(
                     "res/conditions/egal.png")
       .SetHelpPath("/all-features/advanced-conditions")
       .AddParameter("string", _("First string expression"))
-      .AddParameter("relationalOperator", _("Sign of the test"))
+      .AddParameter("relationalOperator", _("Sign of the test"), "string")
       .AddParameter("string", _("Second string expression"))
       .MarkAsAdvanced();
-#endif
 }
 
 }  // namespace gd

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

@@ -75,11 +75,9 @@ void Direction::UnserializeFrom(const gd::SerializerElement& element) {
   SetTimeBetweenFrames(
       element.GetDoubleAttribute("timeBetweenFrames", 1, "tempsEntre"));
   SetLoop(element.GetBoolAttribute("looping", false, "boucle"));
-#if defined(GD_IDE_ONLY)
   SetMetadata(element.HasAttribute("metadata") || element.HasChild("metadata")
                   ? element.GetStringAttribute("metadata")
                   : "");
-#endif
 
   const gd::SerializerElement& spritesElement =
       element.GetChild("sprites", 0, "Sprites");
@@ -135,7 +133,6 @@ void Direction::UnserializeFrom(const gd::SerializerElement& element) {
   }
 };
 
-#if defined(GD_IDE_ONLY)
 void SavePoint(const Point& point, gd::SerializerElement& element) {
   element.SetAttribute("name", point.GetName());
   element.SetAttribute("x", point.GetX());
@@ -190,6 +187,5 @@ void Direction::SerializeTo(gd::SerializerElement& element) const {
   if (!GetMetadata().empty()) element.SetAttribute("metadata", GetMetadata());
   SaveSpritesDirection(sprites, element.AddChild("sprites"));
 }
-#endif
 
 }  // namespace gd

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

@@ -113,7 +113,6 @@ class GD_CORE_API Direction {
    */
   void MoveSprite(std::size_t oldIndex, std::size_t newIndex);
 
-#if defined(GD_IDE_ONLY)
   /**
    * \brief Set the metadata (any string) associated to the Direction.
    * \note Can be used by external editors to store extra information.
@@ -124,20 +123,15 @@ class GD_CORE_API Direction {
    * \brief Return the (optional) metadata associated to the Direction.
    */
   virtual const gd::String& GetMetadata() const { return metadata; }
-#endif
 
   void UnserializeFrom(const gd::SerializerElement& element);
-#if defined(GD_IDE_ONLY)
   void SerializeTo(gd::SerializerElement& element) const;
-#endif
 
  private:
   bool loop;               ///< true if the animation must loop.
   double timeBetweenFrame;  ///< The time between each sprite of the animation.
   std::vector<Sprite> sprites;  ///< The sprites of the direction.
-#if defined(GD_IDE_ONLY)
   gd::String metadata;
-#endif
 };
 
 }  // namespace gd

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

@@ -7,7 +7,6 @@
 #include <SFML/Graphics/Sprite.hpp>
 #include <iostream>
 #include "GDCore/Extensions/Builtin/SpriteExtension/Polygon2d.h"
-#include "GDCore/Project/ImageManager.h"
 
 using namespace std;
 
@@ -16,11 +15,7 @@ namespace gd {
 Point Sprite::badPoint("");
 
 Sprite::Sprite()
-    :
+    : automaticCollisionMask(true),
-#if !defined(EMSCRIPTEN)
-      hasItsOwnImage(false),
-#endif
-      automaticCollisionMask(true),
       origine("origine"),
       centre("centre"),
       automaticCentre(true) {
@@ -73,36 +68,10 @@ Point& Sprite::GetPoint(const gd::String& name) {
 
 bool Sprite::SetDefaultCenterPoint(bool enabled) {
   automaticCentre = enabled;
-
-#if !defined(EMSCRIPTEN)
-  if (automaticCentre)
-    centre.SetXY(sfmlSprite.getLocalBounds().width / 2,
-                 sfmlSprite.getLocalBounds().height / 2);
-#endif
-
   return true;
 }
 
 std::vector<Polygon2d> Sprite::GetCollisionMask() const {
-  // TODO(perf): Cache to avoid re-creating a mask at every call
-#if !defined(EMSCRIPTEN)
-  if (automaticCollisionMask) {
-    std::vector<Polygon2d> mask;
-
-    Polygon2d rectangle;
-    rectangle.vertices.push_back(sf::Vector2f(0, 0));
-    rectangle.vertices.push_back(
-        sf::Vector2f(sfmlSprite.getLocalBounds().width, 0));
-    rectangle.vertices.push_back(sf::Vector2f(
-        sfmlSprite.getLocalBounds().width, sfmlSprite.getLocalBounds().height));
-    rectangle.vertices.push_back(
-        sf::Vector2f(0, sfmlSprite.getLocalBounds().height));
-
-    mask.push_back(rectangle);
-    return mask;
-  }
-#endif
-
   return customCollisionMask;
 }
 
@@ -111,25 +80,4 @@ void Sprite::SetCustomCollisionMask(
   customCollisionMask = collisionMask;
 }
 
-#if !defined(EMSCRIPTEN)
-void Sprite::LoadImage(std::shared_ptr<SFMLTextureWrapper> image_) {
-  sfmlImage = image_;
-  sfmlSprite.setTexture(sfmlImage->texture, true);
-  hasItsOwnImage = false;
-
-  if (automaticCentre)
-    centre.SetXY(sfmlSprite.getLocalBounds().width / 2,
-                 sfmlSprite.getLocalBounds().height / 2);
-}
-
-void Sprite::MakeSpriteOwnsItsImage() {
-  if (!hasItsOwnImage || sfmlImage == std::shared_ptr<SFMLTextureWrapper>()) {
-    sfmlImage = std::make_shared<SFMLTextureWrapper>(
-        sfmlImage->texture);  // Copy the texture.
-    sfmlSprite.setTexture(sfmlImage->texture);
-    hasItsOwnImage = true;
-  }
-}
-#endif
-
 }  // namespace gd

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

@@ -11,7 +11,6 @@
 #include "GDCore/Extensions/Builtin/SpriteExtension/Point.h"
 #include "GDCore/Extensions/Builtin/SpriteExtension/Polygon2d.h"
 #include "GDCore/String.h"
-class SFMLTextureWrapper;
 #undef LoadImage  // prevent windows.h to be polluting everything
 
 namespace gd {
@@ -19,9 +18,6 @@ namespace gd {
 /**
  * \brief Represents a sprite to be displayed on the screen.
  *
- * A sprite contains a SFML sprite to be displayed, some points,
- * and can also have its own texture (rather than a texture from ImageManager).
- *
  * \see Direction
  * \see SpriteObject
  * \ingroup SpriteObjectExtension
@@ -163,53 +159,7 @@ class GD_CORE_API Sprite {
    */
   bool SetDefaultCenterPoint(bool enabled);
 
-#if !defined(EMSCRIPTEN)
-  /** \name Sprite runtime management
-   * Functions used by the C++ game engine.
-   */
-  ///@{
-  /**
-   * \brief Get the SFML sprite associated with the sprite
-   */
-  inline const sf::Sprite& GetSFMLSprite() const { return sfmlSprite; }
-
-  /**
-   * \brief Get the SFML sprite associated with the sprite
-   */
-  inline sf::Sprite& GetSFMLSprite() { return sfmlSprite; }
-
-  /**
-   * \brief Set the SFML texture of the sprite
-   */
-  void LoadImage(std::shared_ptr<SFMLTextureWrapper> image);
-
-  /**
-   * \brief Get SFML texture used by the sprite
-   */
-  std::shared_ptr<SFMLTextureWrapper> GetSFMLTexture() { return sfmlImage; };
-
-  /**
-   * \brief Get SFML texture used by the sprite
-   */
-  const std::shared_ptr<SFMLTextureWrapper> GetSFMLTexture() const {
-    return sfmlImage;
-  };
-
-  /**
-   * \brief Make the sprite, if it uses a texture from ImageManager,
-   * copy this texture and take ownership of it.
-   */
-  void MakeSpriteOwnsItsImage();
-///@}
-#endif
-
  private:
-#if !defined(EMSCRIPTEN)
-  sf::Sprite sfmlSprite;  ///< Displayed SFML sprite
-  std::shared_ptr<SFMLTextureWrapper>
-      sfmlImage;        ///< Pointer to the image displayed by the sprite.
-  bool hasItsOwnImage;  ///< True if sfmlImage is only owned by this Sprite.
-#endif
   gd::String image;  ///< Name of the image to be loaded in Image Manager.
 
   bool automaticCollisionMask;  ///< True to use the custom collision mask.

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

@@ -29,7 +29,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
       _("Animated object which can be used for most elements of a game"),
       "CppPlatform/Extensions/spriteicon.png");
 
-#if defined(GD_IDE_ONLY)
   obj.AddAction("Opacity",
                 _("Change sprite opacity"),
                 _("Change the opacity of a Sprite. 0 is fully transparent, 255 "
@@ -79,7 +78,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
          _("Direction"),
          "res/actions/direction24.png",
          "res/actions/direction.png")
-
+      .SetHidden() // Hide as 8 direction is not supported officially in the interface.
       .AddParameter("object", _("Object"), "Sprite")
       .UseStandardOperatorParameters("number")
       .MarkAsAdvanced();
@@ -243,7 +242,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
          _("Direction"),
          "res/conditions/direction24.png",
          "res/conditions/direction.png")
-
+      .SetHidden() // Hide as 8 direction is not supported officially in the interface.
       .AddParameter("object", _("Object"), "Sprite")
       .UseStandardRelationalOperatorParameters("number");
 
@@ -334,39 +333,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
       .UseStandardRelationalOperatorParameters("number")
       .MarkAsAdvanced();
 
-  obj.AddAction("CopyImageOnImageOfSprite",
-                _("Copy an image on the current one of an object"),
-                _("Copy an image on the current image of an object.\nNote that "
-                  "the source image must be preferably kept loaded in memory."),
-                _("Copy image _PARAM2_ on the current of _PARAM0_ at "
-                  "_PARAM3_;_PARAM4_"),
-                _("Effects"),
-                "res/copy24.png",
-                "res/copyicon.png")
-
-      .AddParameter("object", _("Object"), "Sprite")
-      .AddCodeOnlyParameter("currentScene", "")
-      .AddParameter("string", _("Name of the source image"))
-      .AddParameter("expression", _("X position"))
-      .AddParameter("expression", _("Y position"))
-      .AddParameter(
-          "yesorno",
-          _("Should the copy take in account the source transparency\?"));
-
-  obj.AddAction(
-         "CreateMaskFromColorOnActualImage",  // Actual is indeed a mistake :
-                                              // Current should have been
-                                              // chosen.
-         _("Make a color of the image of an object transparent"),
-         _("Make a color of the image of an object transparent."),
-         _("Make color _PARAM1_ of the current image of _PARAM0_ transparent"),
-         _("Effects"),
-         "res/actions/opacity24.png",
-         "res/actions/opacity.png")
-
-      .AddParameter("object", _("Object"), "Sprite")
-      .AddParameter("color", _("Color to make transparent"));
-
   obj.AddAction("ChangeColor",
                 _("Tint color"),
                 _("Change the tint of an object. The default color is white."),
@@ -498,6 +464,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
                     _("Direction of the object"),
                     _("Direction"),
                     "res/actions/direction.png")
+      .SetHidden() // Hide as 8 direction is not supported officially in the interface.
       .AddParameter("object", _("Object"), "Sprite");
 
   obj.AddExpression("Anim",
@@ -569,7 +536,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsSpriteExtension(
       .AddParameter("objectList", _("Object 1"), "Sprite")
       .AddParameter("objectList", _("Object 2"), "Sprite")
       .AddCodeOnlyParameter("conditionInverted", "");
-#endif
 }
 
 }  // namespace gd

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

@@ -10,7 +10,6 @@
 #include "GDCore/Extensions/Builtin/SpriteExtension/Direction.h"
 #include "GDCore/Extensions/Builtin/SpriteExtension/Sprite.h"
 #include "GDCore/Extensions/Builtin/SpriteExtension/SpriteObject.h"
-#include "GDCore/Project/ImageManager.h"
 #include "GDCore/Project/InitialInstance.h"
 #include "GDCore/Project/Layout.h"
 #include "GDCore/Project/Object.h"
@@ -18,11 +17,9 @@
 #include "GDCore/Serialization/SerializerElement.h"
 #include "GDCore/Tools/Localization.h"
 
-#if defined(GD_IDE_ONLY)
 #include <SFML/Graphics.hpp>
 #include "GDCore/Project/PropertyDescriptor.h"
 #include "GDCore/IDE/Project/ArbitraryResourceWorker.h"
-#endif
 
 namespace gd {
 
@@ -82,7 +79,6 @@ void SpriteObject::DoUnserializeFrom(gd::Project& project,
   }
 }
 
-#if defined(GD_IDE_ONLY)
 void SpriteObject::DoSerializeTo(gd::SerializerElement& element) const {
   element.SetAttribute("updateIfNotVisible", updateIfNotVisible);
 
@@ -158,7 +154,6 @@ bool SpriteObject::UpdateInitialInstanceProperty(gd::InitialInstance& position,
 
   return true;
 }
-#endif
 
 const Animation& SpriteObject::GetAnimation(std::size_t nb) const {
   if (nb >= animations.size()) return badAnimation;

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

@@ -16,7 +16,6 @@ class Object;
 class Layout;
 class Sprite;
 class Animation;
-class MainFrameWrapper;
 class SerializerElement;
 class PropertyDescriptor;
 }  // namespace gd
@@ -45,7 +44,6 @@ class GD_CORE_API SpriteObject : public gd::Object {
     return gd::make_unique<SpriteObject>(*this);
   }
 
-#if defined(GD_IDE_ONLY)
   void ExposeResources(gd::ArbitraryResourceWorker& worker) override;
 
   std::map<gd::String, gd::PropertyDescriptor> GetProperties() const override;
@@ -61,7 +59,6 @@ class GD_CORE_API SpriteObject : public gd::Object {
                                      const gd::String& value,
                                      gd::Project& project,
                                      gd::Layout& scene) override;
-#endif
 
   /** \name Animations
    * Methods related to animations management
@@ -119,14 +116,24 @@ class GD_CORE_API SpriteObject : public gd::Object {
    * animation of the object.
    */
   const std::vector<Animation>& GetAllAnimations() const { return animations; }
+
+  /**
+   * \brief Set if the object animation should be played even if the object is hidden
+   * or far from the camera.
+   */
+  void SetUpdateIfNotVisible(bool updateIfNotVisible_) { updateIfNotVisible = updateIfNotVisible_; }
+
+  /**
+   * \brief Check if the object animation should be played even if the object is hidden
+   * or far from the camera (false by default).
+   */
+  bool GetUpdateIfNotVisible() const { return updateIfNotVisible; }
   ///@}
 
  private:
   void DoUnserializeFrom(gd::Project& project,
                          const gd::SerializerElement& element) override;
-#if defined(GD_IDE_ONLY)
   void DoSerializeTo(gd::SerializerElement& element) const override;
-#endif
 
   mutable std::vector<Animation> animations;
   bool updateIfNotVisible;  ///< If set to true, ask the game engine to play

Core/GDCore/Extensions/Builtin/StringInstructionsExtension.cpp

@@ -21,7 +21,6 @@ BuiltinExtensionsImplementer::ImplementsStringInstructionsExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("" /*TODO: Add a documentation page for this */);
 
-#if defined(GD_IDE_ONLY)
   extension.AddStrExpression("NewLine",
                              _("Insert a new line"),
                              _("Insert a new line"),
@@ -182,7 +181,6 @@ BuiltinExtensionsImplementer::ImplementsStringInstructionsExtension(
                     _("Position of the last character in the string to be "
                       "considered in the search"));
 
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/TimeExtension.cpp

@@ -22,7 +22,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsTimeExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/timers");
 
-#if defined(GD_IDE_ONLY)
 
   extension
       .AddCondition("Timer",
@@ -39,8 +38,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsTimeExtension(
   extension
       .AddCondition("TimeScale",
                     _("Time scale"),
-                    _("Test the time scale."),
+                    _("Compare the time scale of the scene."),
-                    _("the time scale"),
+                    _("the time scale of the scene"),
                     _("Timers and time"),
                     "res/conditions/time24.png",
                     "res/conditions/time.png")
@@ -112,8 +111,8 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsTimeExtension(
   extension
       .AddAction("ChangeTimeScale",
                  _("Change time scale"),
-                 _("Change the time scale of the game."),
+                 _("Change the time scale of the scene."),
-                 _("Set time scale to _PARAM1_"),
+                 _("Set the time scale of the scene to _PARAM1_"),
                  _("Timers and time"),
                  "res/actions/time24.png",
                  "res/actions/time.png")
@@ -176,20 +175,11 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsTimeExtension(
   extension
       .AddExpression("TimeScale",
                      _("Time scale"),
-                     _("Time scale"),
+                     _("Returns the time scale of the scene."),
                      _("Time"),
                      "res/actions/time.png")
       .AddCodeOnlyParameter("currentScene", "");
 
-  extension
-      .AddExpression("TimeScale",
-                     _("Time scale"),
-                     _("Time scale"),
-                     _("Time"),
-                     "res/actions/time.png")
-      .SetHidden()
-      .AddCodeOnlyParameter("currentScene", "");
-
   extension
       .AddExpression("Time",
                      _("Current time"),
@@ -206,7 +196,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsTimeExtension(
           "[\"hour\", \"min\", \"sec\", \"mon\", \"year\", \"wday\", \"mday\", "
           "\"yday\", \"timestamp\"]");
 
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/VariablesExtension.cpp

@@ -23,13 +23,12 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/variables");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddCondition("VarScene",
                     _("Value of a scene variable"),
                     _("Compare the value of a scene variable."),
                     _("the scene variable _PARAM0_"),
-                    _("Variables"),
+                    _("Variables/Scene variables"),
                     "res/conditions/var24.png",
                     "res/conditions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -40,7 +39,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                     _("Text of a scene variable"),
                     _("Compare the text of a scene variable."),
                     _("the text of scene variable _PARAM0_"),
-                    _("Variables"),
+                    _("Variables/Scene variables"),
                     "res/conditions/var24.png",
                     "res/conditions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -52,7 +51,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
           _("Boolean value of a scene variable"),
           _("Compare the boolean value of a scene variable."),
           _("The boolean value of scene variable _PARAM0_ is _PARAM1_"),
-          _("Variables"),
+          _("Variables/Scene variables"),
           "res/conditions/var24.png",
           "res/conditions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -65,7 +64,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
           _("Child existence"),
           _("Check if the specified child of the scene variable exists."),
           _("Child _PARAM1_ of scene variable _PARAM0_ exists"),
-          _("Variables/Collections/Structures"),
+          _("Variables/Scene variables/Collections/Structures"),
           "res/conditions/var24.png",
           "res/conditions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -90,7 +89,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                     "Test if a scene variable is defined",
                     "Test if the scene variable exists.",
                     "Scene variable _PARAM0_ is defined",
-                    _("Variables"),
+                    _("Variables/Scene variables"),
                     "res/conditions/var24.png",
                     "res/conditions/var.png")
       .AddCodeOnlyParameter("currentScene", "")
@@ -152,7 +151,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  _("Value of a scene variable"),
                  _("Change the value of a scene variable."),
                  _("the scene variable _PARAM0_"),
-                 _("Variables"),
+                 _("Variables/Scene variables"),
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -163,7 +162,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  _("String of a scene variable"),
                  _("Modify the text of a scene variable."),
                  _("the text of scene variable _PARAM0_"),
-                 _("Variables"),
+                 _("Variables/Scene variables"),
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -175,7 +174,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
           _("Boolean value of a scene variable"),
           _("Modify the boolean value of a scene variable."),
           _("Set the boolean value of scene variable _PARAM0_ to _PARAM1_"),
-          _("Variables"),
+          _("Variables/Scene variables"),
           "res/conditions/var24.png",
           "res/conditions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -188,7 +187,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                      _("If it was true, it will become false, and if it was "
                        "false it will become true."),
                  _("Toggle the boolean value of scene variable _PARAM0_"),
-                 _("Variables"),
+                 _("Variables/Scene variables"),
                  "res/conditions/var24.png",
                  "res/conditions/var.png")
       .AddParameter("scenevar", _("Variable"));
@@ -246,7 +245,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  _("Remove a child"),
                  _("Remove a child from a scene variable."),
                  _("Remove child _PARAM1_ from scene variable _PARAM0_"),
-                 _("Variables/Collections/Structures"),
+                 _("Variables/Scene variables/Collections/Structures"),
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -270,7 +269,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  _("Clear scene variable"),
                  _("Remove all the children from the scene variable."),
                  _("Clear children from scene variable _PARAM0_"),
-                 _("Variables/Collections"),
+                 _("Variables/Scene variables/Collections"),
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -292,7 +291,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  _("Append variable to a scene array"),
                  _("Appends a variable at the end of a scene array variable."),
                  _("Append variable _PARAM1_ to array variable _PARAM0_"),
-                 _("Variables/Collections/Arrays"),
+                 _("Variables/Scene variables/Collections/Arrays"),
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Array variable"))
@@ -305,7 +304,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  _("Append a string to a scene array"),
                  _("Appends a string at the end of a scene array variable."),
                  _("Append string _PARAM1_ to array variable _PARAM0_"),
-                 _("Variables/Collections/Arrays"),
+                 _("Variables/Scene variables/Collections/Arrays"),
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Array variable"))
@@ -317,7 +316,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  _("Append a number to a scene array"),
                  _("Appends a number at the end of a scene array variable."),
                  _("Append number _PARAM1_ to array variable _PARAM0_"),
-                 _("Variables/Collections/Arrays"),
+                 _("Variables/Scene variables/Collections/Arrays"),
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Array variable"))
@@ -329,7 +328,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
                  _("Append a boolean to a scene array"),
                  _("Appends a boolean at the end of a scene array variable."),
                  _("Append boolean _PARAM1_ to array variable _PARAM0_"),
-                 _("Variables/Collections/Arrays"),
+                 _("Variables/Scene variables/Collections/Arrays"),
                  "res/actions/var24.png",
                  "res/actions/var.png")
       .AddParameter("scenevar", _("Array variable"))
@@ -342,7 +341,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
           _("Remove variable from a scene array (by index)"),
           _("Removes a variable at the specified index of a scene array variable."),
           _("Remove variable at index _PARAM1_ from scene array variable _PARAM0_"),
-          _("Variables/Collections/Arrays"),
+          _("Variables/Scene variables/Collections/Arrays"),
           "res/actions/var24.png",
           "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"))
@@ -415,7 +414,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
       .AddExpression("GlobalVariableChildCount",
                      _("Number of children of a global variable"),
                      _("Number of children of a global variable"),
-                     _("Variables"),
+                     _("Variables/Global variables"),
                      "res/actions/var.png")
       .AddParameter("globalvar", _("Variable"));
 
@@ -423,7 +422,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
       .AddExpression("VariableChildCount",
                      _("Number of children of a scene variable"),
                      _("Number of children of a scene variable"),
-                     _("Variables"),
+                     _("Variables/Scene variables"),
                      "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"));
 
@@ -431,7 +430,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
       .AddExpression("Variable",
                      _("Value of a scene variable"),
                      _("Value of a scene variable"),
-                     _("Variables"),
+                     _("Variables/Scene variables"),
                      "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"));
 
@@ -439,7 +438,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
       .AddStrExpression("VariableString",
                         _("Text of a scene variable"),
                         _("Text of a scene variable"),
-                        _("Variables"),
+                        _("Variables/Scene variables"),
                         "res/actions/var.png")
       .AddParameter("scenevar", _("Variable"));
 
@@ -447,7 +446,7 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
       .AddExpression("GlobalVariable",
                      _("Value of a global variable"),
                      _("Value of a global variable"),
-                     _("Variables"),
+                     _("Variables/Global variables"),
                      "res/actions/var.png")
       .AddParameter("globalvar", _("Name of the global variable"));
 
@@ -455,10 +454,9 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsVariablesExtension(
       .AddStrExpression("GlobalVariableString",
                         _("Text of a global variable"),
                         _("Text of a global variable"),
-                        _("Variables"),
+                        _("Variables/Global variables"),
                         "res/actions/var.png")
       .AddParameter("globalvar", _("Variable"));
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Builtin/WindowExtension.cpp

@@ -22,7 +22,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsWindowExtension(
           "Open source (MIT License)")
       .SetExtensionHelpPath("/all-features/window");
 
-#if defined(GD_IDE_ONLY)
   extension
       .AddAction(
           "SetFullScreen",
@@ -215,7 +214,6 @@ void GD_CORE_API BuiltinExtensionsImplementer::ImplementsWindowExtension(
                         _("Screen"),
                         "res/window.png")
       .AddCodeOnlyParameter("currentScene", "");
-#endif
 }
 
 }  // namespace gd

Core/GDCore/Extensions/Metadata/BehaviorMetadata.cpp

@@ -275,6 +275,76 @@ BehaviorMetadata::AddExpressionAndConditionAndAction(
       expression, condition, action);
 }
 
+#if defined(GD_IDE_ONLY)
+gd::InstructionMetadata& BehaviorMetadata::AddDuplicatedAction(
+    const gd::String& newActionName, const gd::String& copiedActionName) {
+  gd::String newNameWithNamespace = extensionNamespace + newActionName;
+  gd::String copiedNameWithNamespace = extensionNamespace + copiedActionName;
+
+  auto copiedAction = actionsInfos.find(copiedNameWithNamespace);
+  if (copiedAction == actionsInfos.end()) {
+    gd::LogWarning("Could not find an action with name " +
+                   copiedNameWithNamespace + " to copy.");
+  } else {
+    actionsInfos[newNameWithNamespace] = copiedAction->second;
+  }
+
+  return actionsInfos[newNameWithNamespace];
+}
+
+gd::InstructionMetadata& BehaviorMetadata::AddDuplicatedCondition(
+    const gd::String& newConditionName, const gd::String& copiedConditionName) {
+  gd::String newNameWithNamespace = extensionNamespace + newConditionName;
+  gd::String copiedNameWithNamespace = extensionNamespace + copiedConditionName;
+
+  auto copiedCondition = conditionsInfos.find(copiedNameWithNamespace);
+  if (copiedCondition == conditionsInfos.end()) {
+    gd::LogWarning("Could not find a condition with name " +
+                   copiedNameWithNamespace + " to copy.");
+  } else {
+    conditionsInfos[newNameWithNamespace] = copiedCondition->second;
+  }
+
+  return conditionsInfos[newNameWithNamespace];
+}
+
+gd::ExpressionMetadata& BehaviorMetadata::AddDuplicatedExpression(
+    const gd::String& newExpressionName,
+    const gd::String& copiedExpressionName) {
+  gd::String newNameWithNamespace = extensionNamespace + newExpressionName;
+  gd::String copiedNameWithNamespace =
+      extensionNamespace + copiedExpressionName;
+
+  auto copiedExpression = expressionsInfos.find(copiedNameWithNamespace);
+  if (copiedExpression == expressionsInfos.end()) {
+    gd::LogWarning("Could not find an expression with name " +
+                   copiedNameWithNamespace + " to copy.");
+  } else {
+    expressionsInfos[newNameWithNamespace] = copiedExpression->second;
+  }
+
+  return expressionsInfos[newNameWithNamespace];
+}
+
+gd::ExpressionMetadata& BehaviorMetadata::AddDuplicatedStrExpression(
+    const gd::String& newExpressionName,
+    const gd::String& copiedExpressionName) {
+  gd::String newNameWithNamespace = extensionNamespace + newExpressionName;
+  gd::String copiedNameWithNamespace =
+      extensionNamespace + copiedExpressionName;
+
+  auto copiedExpression = strExpressionsInfos.find(copiedNameWithNamespace);
+  if (copiedExpression == strExpressionsInfos.end()) {
+    gd::LogWarning("Could not find a string expression with name " +
+                   copiedNameWithNamespace + " to copy.");
+  } else {
+    strExpressionsInfos[newNameWithNamespace] = copiedExpression->second;
+  }
+
+  return strExpressionsInfos[newNameWithNamespace];
+}
+#endif
+
 BehaviorMetadata& BehaviorMetadata::SetFullName(const gd::String& fullname_) {
 #if defined(GD_IDE_ONLY)
   fullname = fullname_;
@@ -323,4 +393,14 @@ const gd::String& BehaviorMetadata::GetName() const {
   return instance->GetTypeName();
 }
 
+gd::Behavior& BehaviorMetadata::Get() const {
+  if (!instance)
+    gd::LogFatalError(
+        "Trying to get a behavior from a BehaviorMetadata that has no "
+        "behavior. This will crash - please double check that the "
+        "BehaviorMetadata is valid.");
+
+  return *instance;
+}
+
 }  // namespace gd

Core/GDCore/Extensions/Metadata/BehaviorMetadata.h

@@ -138,6 +138,46 @@ class GD_CORE_API BehaviorMetadata {
       const gd::String& group,
       const gd::String& icon);
 
+  /**
+   * \brief Create a new action which is the duplicate of the specified one.
+   *
+   * Useful for handling a deprecated action that is just a "copy" of the new
+   * one.
+   */
+  gd::InstructionMetadata& AddDuplicatedAction(
+      const gd::String& newActionName, const gd::String& copiedActionName);
+
+  /**
+   * \brief Create a new condition which is the duplicate of the specified one.
+   *
+   * Useful for handling a deprecated condition that is just a "copy" of the new
+   * one.
+   */
+  gd::InstructionMetadata& AddDuplicatedCondition(
+      const gd::String& newConditionName,
+      const gd::String& copiedConditionName);
+
+  /**
+   * \brief Create a new expression which is the duplicate of the specified one.
+   *
+   * Useful for handling a deprecated expression that is just a "copy" of the
+   * new one.
+   */
+  gd::ExpressionMetadata& AddDuplicatedExpression(
+      const gd::String& newExpressionName,
+      const gd::String& copiedExpressionName);
+
+  /**
+   * \brief Create a new string expression which is the duplicate of the
+   * specified one.
+   *
+   * Useful for handling a deprecated string expression that is just a "copy" of
+   * the new one.
+   */
+  gd::ExpressionMetadata& AddDuplicatedStrExpression(
+      const gd::String& newExpressionName,
+      const gd::String& copiedExpressionName);
+
   BehaviorMetadata& SetFullName(const gd::String& fullname_);
   BehaviorMetadata& SetDefaultName(const gd::String& defaultName_);
   BehaviorMetadata& SetDescription(const gd::String& description_);
@@ -200,7 +240,7 @@ class GD_CORE_API BehaviorMetadata {
   /**
    * \brief Return the associated gd::Behavior, handling behavior contents.
    */
-  gd::Behavior& Get() const { return *instance; }
+  gd::Behavior& Get() const;
 
   /**
    * \brief Return the associated gd::BehaviorsSharedData, handling behavior

Core/GDCore/Extensions/Metadata/EffectMetadata.cpp

@@ -7,7 +7,8 @@
 
 namespace gd {
 
-EffectMetadata::EffectMetadata(const gd::String& type_) : type(type_) {}
+EffectMetadata::EffectMetadata(const gd::String& type_)
+    : type(type_), isMarkedAsNotWorkingForObjects(false) {}
 
 EffectMetadata& EffectMetadata::SetIncludeFile(const gd::String& includeFile) {
   includeFiles.clear();
@@ -22,4 +23,9 @@ EffectMetadata& EffectMetadata::AddIncludeFile(const gd::String& includeFile) {
   return *this;
 }
 
+EffectMetadata& EffectMetadata::MarkAsNotWorkingForObjects() {
+  isMarkedAsNotWorkingForObjects = true;
+  return *this;
+}
+
 }  // namespace gd

Core/GDCore/Extensions/Metadata/EffectMetadata.h

@@ -8,6 +8,7 @@
 #include <functional>
 #include <map>
 #include <memory>
+
 #include "GDCore/Project/PropertyDescriptor.h"
 #include "GDCore/String.h"
 
@@ -49,7 +50,8 @@ class GD_CORE_API EffectMetadata {
   };
 
   /**
-   * Set the help path of the effect, relative to the GDevelop documentation root.
+   * Set the help path of the effect, relative to the GDevelop documentation
+   * root.
    */
   EffectMetadata& SetHelpPath(const gd::String& path) {
     helpPath = path;
@@ -66,6 +68,11 @@ class GD_CORE_API EffectMetadata {
    */
   EffectMetadata& AddIncludeFile(const gd::String& includeFile);
 
+  /**
+   * \brief Mark the effect as not working as an object effect.
+   */
+  EffectMetadata& MarkAsNotWorkingForObjects();
+
   /**
    * \brief Return a reference to the properties of this effect.
    */
@@ -81,12 +88,14 @@ class GD_CORE_API EffectMetadata {
   }
 
   /**
-   * \brief Get the help path of the effect, relative to the GDevelop documentation root.
+   * \brief Get the help path of the effect, relative to the GDevelop
+   * documentation root.
    */
   const gd::String& GetHelpPath() const { return helpPath; }
 
   /**
-   * \brief Get the type of the effect (its internal name, like "BlackAndWhite").
+   * \brief Get the type of the effect (its internal name, like
+   * "BlackAndWhite").
    */
   const gd::String& GetType() const { return type; }
 
@@ -107,6 +116,11 @@ class GD_CORE_API EffectMetadata {
     return includeFiles;
   }
 
+  /**
+   * \brief Check if the effect is marked as not working as an object effect.
+   */
+  bool IsMarkedAsNotWorkingForObjects() const { return isMarkedAsNotWorkingForObjects; };
+
  private:
   gd::String extensionNamespace;
   gd::String type;
@@ -114,6 +128,7 @@ class GD_CORE_API EffectMetadata {
   gd::String fullname;
   gd::String description;
   std::vector<gd::String> includeFiles;
+  bool isMarkedAsNotWorkingForObjects;
   std::map<gd::String, gd::PropertyDescriptor> properties;
 };
 

Core/GDCore/Extensions/Metadata/ExpressionMetadata.cpp

@@ -34,7 +34,7 @@ ExpressionMetadata& ExpressionMetadata::SetHidden() {
 gd::ExpressionMetadata& ExpressionMetadata::AddParameter(
     const gd::String& type,
     const gd::String& description,
-    const gd::String& optionalObjectType,
+    const gd::String& supplementaryInformation,
     bool parameterIsOptional) {
   gd::ParameterMetadata info;
   info.type = type;
@@ -46,15 +46,15 @@ gd::ExpressionMetadata& ExpressionMetadata::AddParameter(
       // parameter is an object/behavior type...
       (gd::ParameterMetadata::IsObject(type) ||
        gd::ParameterMetadata::IsBehavior(type))
-          ? (optionalObjectType.empty()
+          ? (supplementaryInformation.empty()
                  ? ""
                  : extensionNamespace +
-                       optionalObjectType  //... so prefix it with the extension
+                       supplementaryInformation  //... so prefix it with the extension
                                            // namespace.
              )
-          : optionalObjectType;  // Otherwise don't change anything
+          : supplementaryInformation;  // Otherwise don't change anything
 
-  // TODO: Assert against optionalObjectType === "emsc" (when running with
+  // TODO: Assert against supplementaryInformation === "emsc" (when running with
   // Emscripten), and warn about a missing argument when calling addParameter.
 
   parameters.push_back(info);

Core/GDCore/Extensions/Metadata/ExpressionMetadata.h

@@ -190,7 +190,7 @@ class GD_CORE_API ExpressionMetadata {
   gd::ExpressionMetadata& AddParameter(
       const gd::String& type,
       const gd::String& description,
-      const gd::String& optionalObjectType = "",
+      const gd::String& supplementaryInformation = "",
       bool parameterIsOptional = false);
 
   /**

Core/GDCore/Extensions/Metadata/InstructionMetadata.cpp

@@ -51,7 +51,7 @@ InstructionMetadata::InstructionMetadata(const gd::String& extensionNamespace_,
 InstructionMetadata& InstructionMetadata::AddParameter(
     const gd::String& type,
     const gd::String& description,
-    const gd::String& optionalObjectType,
+    const gd::String& supplementaryInformation,
     bool parameterIsOptional) {
   ParameterMetadata info;
   info.type = type;
@@ -63,15 +63,15 @@ InstructionMetadata& InstructionMetadata::AddParameter(
       // parameter is an object/behavior type...
       (gd::ParameterMetadata::IsObject(type) ||
        gd::ParameterMetadata::IsBehavior(type))
-          ? (optionalObjectType.empty()
+          ? (supplementaryInformation.empty()
                  ? ""
                  : extensionNamespace +
-                       optionalObjectType  //... so prefix it with the extension
+                       supplementaryInformation  //... so prefix it with the extension
                                            // namespace.
              )
-          : optionalObjectType;  // Otherwise don't change anything
+          : supplementaryInformation;  // Otherwise don't change anything
 
-  // TODO: Assert against optionalObjectType === "emsc" (when running with
+  // TODO: Assert against supplementaryInformation === "emsc" (when running with
   // Emscripten), and warn about a missing argument when calling addParameter.
 
   parameters.push_back(info);
@@ -93,7 +93,7 @@ InstructionMetadata& InstructionMetadata::UseStandardOperatorParameters(
     const gd::String& type) {
   SetManipulatedType(type);
 
-  AddParameter("operator", _("Modification's sign"));
+  AddParameter("operator", _("Modification's sign"), type);
   AddParameter(type == "number" ? "expression" : type, _("Value"));
   size_t operatorParamIndex = parameters.size() - 2;
   size_t valueParamIndex = parameters.size() - 1;
@@ -129,7 +129,7 @@ InstructionMetadata::UseStandardRelationalOperatorParameters(
     const gd::String& type) {
   SetManipulatedType(type);
 
-  AddParameter("relationalOperator", _("Sign of the test"));
+  AddParameter("relationalOperator", _("Sign of the test"), type);
   AddParameter(type == "number" ? "expression" : type, _("Value to compare"));
   size_t operatorParamIndex = parameters.size() - 2;
   size_t valueParamIndex = parameters.size() - 1;

Core/GDCore/Extensions/Metadata/InstructionMetadata.h

@@ -6,7 +6,6 @@
 
 #ifndef INSTRUCTIONMETADATA_H
 #define INSTRUCTIONMETADATA_H
-#if defined(GD_IDE_ONLY)
 #include <functional>
 #include <map>
 #include <memory>
@@ -137,8 +136,11 @@ class GD_CORE_API InstructionMetadata {
    * will also determine the type of the argument used when calling the function
    * in the generated code.
    * \param description Description for parameter
-   * \param optionalObjectType If type is "object", this parameter will describe
+   * \param supplementaryInformation Additional information that can be used for
-   * which objects are allowed. If it is empty, all objects are allowed.
+   * rendering or logic. For example:
+   * - If type is "object", this argument will describe which objects are allowed.
+   * If this argument is empty, all objects are allowed.
+   * - If type is "operator", this argument will be used to display only pertinent operators.
    * \param parameterIsOptional true if the parameter must be optional, false
    * otherwise.
    *
@@ -146,7 +148,7 @@ class GD_CORE_API InstructionMetadata {
    */
   InstructionMetadata &AddParameter(const gd::String &type,
                                     const gd::String &label,
-                                    const gd::String &optionalObjectType = "",
+                                    const gd::String &supplementaryInformation = "",
                                     bool parameterIsOptional = false);
 
   /**
@@ -187,6 +189,19 @@ class GD_CORE_API InstructionMetadata {
     return *this;
   };
 
+  /**
+   * \brief Set the additional information, used for some parameters
+   * with special type (for example, it can contains the type of object accepted
+   * by the parameter), for the last added parameter.
+   *
+   * \see AddParameter
+   */
+  InstructionMetadata &SetParameterExtraInfo(const gd::String &extraInfo) {
+    if (!parameters.empty())
+      parameters.back().SetExtraInfo(extraInfo);
+    return *this;
+  };
+
   /**
    * \brief Add the default parameters for an instruction manipulating the
    * specified type ("string", "number") with the default operators.
@@ -221,14 +236,14 @@ class GD_CORE_API InstructionMetadata {
   /**
    * \brief Check if the instruction is an object instruction.
    */
-  bool IsObjectInstruction() {
+  bool IsObjectInstruction() const {
     return isObjectInstruction;
   }
 
   /**
    * \brief Check if the instruction is a behavior instruction.
    */
-  bool IsBehaviorInstruction() {
+  bool IsBehaviorInstruction() const {
     return isBehaviorInstruction;
   }
 
@@ -306,7 +321,7 @@ class GD_CORE_API InstructionMetadata {
      *                 "CppPlatform/Extensions/text.png");
      *
      *      .AddParameter("object", _("Object"), "Text", false)
-     *      .AddParameter("operator", _("Modification operator"))
+     *      .AddParameter("operator", _("Modification operator"), "string")
      *      .AddParameter("string", _("String"))
      *      .SetFunctionName("SetString").SetManipulatedType("string").SetGetter("GetString").SetIncludeFile("MyExtension/TextObject.h");
      *
@@ -439,5 +454,4 @@ class GD_CORE_API InstructionMetadata {
 
 }  // namespace gd
 
-#endif
 #endif  // INSTRUCTIONMETADATA_H

Core/GDCore/Extensions/Metadata/MetadataProvider.h

@@ -245,6 +245,10 @@ class GD_CORE_API MetadataProvider {
     return &metadata == &badExpressionMetadata;
   }
 
+  static bool IsBadInstructionMetadata(const gd::InstructionMetadata& metadata) {
+    return &metadata == &badInstructionMetadata;
+  }
+
   static bool IsBadBehaviorMetadata(const gd::BehaviorMetadata& metadata) {
     return &metadata == &badBehaviorMetadata;
   }

Core/GDCore/Extensions/Metadata/MultipleInstructionMetadata.h

@@ -38,19 +38,17 @@ class GD_CORE_API MultipleInstructionMetadata {
   MultipleInstructionMetadata &AddParameter(
       const gd::String &type,
       const gd::String &label,
-      const gd::String &optionalObjectType = "",
+      const gd::String &supplementaryInformation = "",
       bool parameterIsOptional = false) {
-#if defined(GD_IDE_ONLY)
     if (expression)
       expression->AddParameter(
-          type, label, optionalObjectType, parameterIsOptional);
+          type, label, supplementaryInformation, parameterIsOptional);
     if (condition)
       condition->AddParameter(
-          type, label, optionalObjectType, parameterIsOptional);
+          type, label, supplementaryInformation, parameterIsOptional);
     if (action)
       action->AddParameter(
-          type, label, optionalObjectType, parameterIsOptional);
+          type, label, supplementaryInformation, parameterIsOptional);
-#endif
     return *this;
   }
 
@@ -59,13 +57,11 @@ class GD_CORE_API MultipleInstructionMetadata {
    */
   MultipleInstructionMetadata &AddCodeOnlyParameter(
       const gd::String &type, const gd::String &supplementaryInformation) {
-#if defined(GD_IDE_ONLY)
     if (expression)
       expression->AddCodeOnlyParameter(type, supplementaryInformation);
     if (condition)
       condition->AddCodeOnlyParameter(type, supplementaryInformation);
     if (action) action->AddCodeOnlyParameter(type, supplementaryInformation);
-#endif
     return *this;
   }
 
@@ -73,11 +69,9 @@ class GD_CORE_API MultipleInstructionMetadata {
    * \see gd::InstructionMetadata::SetDefaultValue
    */
   MultipleInstructionMetadata &SetDefaultValue(const gd::String &defaultValue) {
-#if defined(GD_IDE_ONLY)
     if (expression) expression->SetDefaultValue(defaultValue);
     if (condition) condition->SetDefaultValue(defaultValue);
     if (action) action->SetDefaultValue(defaultValue);
-#endif
     return *this;
   };
 
@@ -86,11 +80,9 @@ class GD_CORE_API MultipleInstructionMetadata {
    */
   MultipleInstructionMetadata &SetParameterLongDescription(
       const gd::String &longDescription) {
-#if defined(GD_IDE_ONLY)
     if (expression) expression->SetParameterLongDescription(longDescription);
     if (condition) condition->SetParameterLongDescription(longDescription);
     if (action) action->SetParameterLongDescription(longDescription);
-#endif
     return *this;
   };
 
@@ -98,11 +90,9 @@ class GD_CORE_API MultipleInstructionMetadata {
    * \see gd::InstructionMetadata::SetHidden
    */
   MultipleInstructionMetadata &SetHidden() {
-#if defined(GD_IDE_ONLY)
     if (expression) expression->SetHidden();
     if (condition) condition->SetHidden();
     if (action) action->SetHidden();
-#endif
     return *this;
   };
 
@@ -111,50 +101,40 @@ class GD_CORE_API MultipleInstructionMetadata {
    * \see gd::InstructionMetadata::UseStandardRelationalOperatorParameters
    */
   MultipleInstructionMetadata &UseStandardParameters(const gd::String &type) {
-#if defined(GD_IDE_ONLY)
     if (condition) condition->UseStandardRelationalOperatorParameters(type);
     if (action) action->UseStandardOperatorParameters(type);
-#endif
     return *this;
   }
 
   MultipleInstructionMetadata &SetFunctionName(const gd::String &functionName) {
-#if defined(GD_IDE_ONLY)
     if (expression) expression->SetFunctionName(functionName);
     if (condition) condition->SetFunctionName(functionName);
     if (action) action->GetCodeExtraInformation().SetFunctionName(functionName);
-#endif
     return *this;
   }
 
   MultipleInstructionMetadata &SetGetter(const gd::String &getter) {
-#if defined(GD_IDE_ONLY)
     if (expression) expression->SetFunctionName(getter);
     if (condition) condition->SetFunctionName(getter);
     if (action) action->GetCodeExtraInformation().SetGetter(getter);
-#endif
     return *this;
   }
 
   MultipleInstructionMetadata &SetIncludeFile(const gd::String &includeFile) {
-#if defined(GD_IDE_ONLY)
     if (expression)
       expression->GetCodeExtraInformation().SetIncludeFile(includeFile);
     if (condition)
       condition->GetCodeExtraInformation().SetIncludeFile(includeFile);
     if (action) action->GetCodeExtraInformation().SetIncludeFile(includeFile);
-#endif
     return *this;
   }
 
   MultipleInstructionMetadata &AddIncludeFile(const gd::String &includeFile) {
-#if defined(GD_IDE_ONLY)
     if (expression)
       expression->GetCodeExtraInformation().AddIncludeFile(includeFile);
     if (condition)
       condition->GetCodeExtraInformation().AddIncludeFile(includeFile);
     if (action) action->GetCodeExtraInformation().AddIncludeFile(includeFile);
-#endif
     return *this;
   }
 
@@ -162,10 +142,8 @@ class GD_CORE_API MultipleInstructionMetadata {
    * \see gd::InstructionMetadata::MarkAsSimple
    */
   MultipleInstructionMetadata &MarkAsSimple() {
-#if defined(GD_IDE_ONLY)
     if (condition) condition->MarkAsSimple();
     if (action) action->MarkAsSimple();
-#endif
     return *this;
   }
 
@@ -173,10 +151,8 @@ class GD_CORE_API MultipleInstructionMetadata {
    * \see gd::InstructionMetadata::MarkAsAdvanced
    */
   MultipleInstructionMetadata &MarkAsAdvanced() {
-#if defined(GD_IDE_ONLY)
     if (condition) condition->MarkAsAdvanced();
     if (action) action->MarkAsAdvanced();
-#endif
     return *this;
   }
 
@@ -184,10 +160,8 @@ class GD_CORE_API MultipleInstructionMetadata {
    * \see gd::InstructionMetadata::MarkAsComplex
    */
   MultipleInstructionMetadata &MarkAsComplex() {
-#if defined(GD_IDE_ONLY)
     if (condition) condition->MarkAsComplex();
     if (action) action->MarkAsComplex();
-#endif
     return *this;
   }
 

Core/GDCore/Extensions/Metadata/ObjectMetadata.cpp

@@ -302,6 +302,38 @@ ObjectMetadata::AddExpressionAndConditionAndAction(
       expression, condition, action);
 }
 
+gd::InstructionMetadata& ObjectMetadata::AddDuplicatedAction(
+    const gd::String& newActionName, const gd::String& copiedActionName) {
+  gd::String newNameWithNamespace = extensionNamespace + newActionName;
+  gd::String copiedNameWithNamespace = extensionNamespace + copiedActionName;
+
+  auto copiedAction = actionsInfos.find(copiedNameWithNamespace);
+  if (copiedAction == actionsInfos.end()) {
+    gd::LogWarning("Could not find an action with name " +
+                   copiedNameWithNamespace + " to copy.");
+  } else {
+    actionsInfos[newNameWithNamespace] = copiedAction->second;
+  }
+
+  return actionsInfos[newNameWithNamespace];
+}
+
+gd::InstructionMetadata& ObjectMetadata::AddDuplicatedCondition(
+    const gd::String& newConditionName, const gd::String& copiedConditionName) {
+  gd::String newNameWithNamespace = extensionNamespace + newConditionName;
+  gd::String copiedNameWithNamespace = extensionNamespace + copiedConditionName;
+
+  auto copiedCondition = conditionsInfos.find(copiedNameWithNamespace);
+  if (copiedCondition == conditionsInfos.end()) {
+    gd::LogWarning("Could not find a condition with name " +
+                   copiedNameWithNamespace + " to copy.");
+  } else {
+    conditionsInfos[newNameWithNamespace] = copiedCondition->second;
+  }
+
+  return conditionsInfos[newNameWithNamespace];
+}
+
 ObjectMetadata& ObjectMetadata::SetFullName(const gd::String& fullname_) {
 #if defined(GD_IDE_ONLY)
   fullname = fullname_;

Core/GDCore/Extensions/Metadata/ObjectMetadata.h

@@ -153,6 +153,25 @@ class GD_CORE_API ObjectMetadata {
       const gd::String& group,
       const gd::String& icon);
 
+  /**
+   * \brief Create a new action which is the duplicate of the specified one.
+   *
+   * Useful for handling a deprecated action that is just a "copy" of the new
+   * one.
+   */
+  gd::InstructionMetadata& AddDuplicatedAction(
+      const gd::String& newActionName, const gd::String& copiedActionName);
+
+  /**
+   * \brief Create a new condition which is the duplicate of the specified one.
+   *
+   * Useful for handling a deprecated condition that is just a "copy" of the new
+   * one.
+   */
+  gd::InstructionMetadata& AddDuplicatedCondition(
+      const gd::String& newConditionName,
+      const gd::String& copiedConditionName);
+
   /**
    * \brief Set the name shown to the user.
    */

Core/GDCore/Extensions/Metadata/ParameterMetadata.h

@@ -68,14 +68,14 @@ class GD_CORE_API ParameterMetadata {
 
   /**
    * \brief Return an optional additional information, used for some parameters
-   * with special type (For example, it can contains the type of object accepted
+   * with special type (for example, it can contains the type of object accepted
    * by the parameter).
    */
   const gd::String &GetExtraInfo() const { return supplementaryInformation; }
 
   /**
    * \brief Set an optional additional information, used for some parameters
-   * with special type (For example, it can contains the type of object accepted
+   * with special type (for example, it can contains the type of object accepted
    * by the parameter).
    */
   ParameterMetadata &SetExtraInfo(const gd::String &supplementaryInformation_) {
@@ -189,6 +189,10 @@ class GD_CORE_API ParameterMetadata {
              parameterType == "joyaxis" ||
              parameterType == "stringWithSelector" ||
              parameterType == "sceneName" ||
+             parameterType == "layerEffectName" ||
+             parameterType == "layerEffectParameterName" ||
+             parameterType == "objectEffectName" ||
+             parameterType == "objectEffectParameterName" ||
              parameterType == "objectPointName" ||
              parameterType == "objectAnimationName";
     } else if (type == "variable") {

Core/GDCore/Extensions/Metadata/ParameterMetadataTools.cpp

@@ -4,6 +4,7 @@
  * reserved. This project is released under the MIT License.
  */
 #include "ParameterMetadataTools.h"
+
 #include "GDCore/Events/Expression.h"
 #include "GDCore/Project/Object.h"
 #include "GDCore/Project/ObjectsContainer.h"
@@ -60,6 +61,24 @@ void ParameterMetadataTools::IterateOverParameters(
     std::function<void(const gd::ParameterMetadata& parameterMetadata,
                        const gd::String& parameterValue,
                        const gd::String& lastObjectName)> fn) {
+  IterateOverParametersWithIndex(
+      parameters,
+      parametersMetadata,
+      [&fn](const gd::ParameterMetadata& parameterMetadata,
+            const gd::String& parameterValue,
+            size_t parameterIndex,
+            const gd::String& lastObjectName) {
+        fn(parameterMetadata, parameterValue, lastObjectName);
+      });
+}
+
+void ParameterMetadataTools::IterateOverParametersWithIndex(
+    const std::vector<gd::Expression>& parameters,
+    const std::vector<gd::ParameterMetadata>& parametersMetadata,
+    std::function<void(const gd::ParameterMetadata& parameterMetadata,
+                       const gd::String& parameterValue,
+                       size_t parameterIndex,
+                       const gd::String& lastObjectName)> fn) {
   gd::String lastObjectName = "";
   for (std::size_t pNb = 0; pNb < parametersMetadata.size(); ++pNb) {
     const gd::ParameterMetadata& parameterMetadata = parametersMetadata[pNb];
@@ -70,7 +89,7 @@ void ParameterMetadataTools::IterateOverParameters(
             ? parameterMetadata.GetDefaultValue()
             : parameterValue;
 
-    fn(parameterMetadata, parameterValueOrDefault, lastObjectName);
+    fn(parameterMetadata, parameterValueOrDefault, pNb, lastObjectName);
 
     // Memorize the last object name. By convention, parameters that require
     // an object (mainly, "objectvar" and "behavior") should be placed after

Core/GDCore/Extensions/Metadata/ParameterMetadataTools.h

@@ -35,6 +35,19 @@ class GD_CORE_API ParameterMetadataTools {
                          const gd::String& parameterValue,
                          const gd::String& lastObjectName)> fn);
 
+  /**
+   * Iterate over a list of parameters and their values.
+   * Callback function is called with the parameter metadata, its value
+   * and if applicable the name of the object it's linked to.
+   */
+  static void IterateOverParametersWithIndex(
+      const std::vector<gd::Expression>& parameters,
+      const std::vector<gd::ParameterMetadata>& parametersMetadata,
+      std::function<void(const gd::ParameterMetadata& parameterMetadata,
+                         const gd::String& parameterValue,
+                         size_t parameterIndex,
+                         const gd::String& lastObjectName)> fn);
+
   /**
    * Given a parameter, return, if applicable, the index of the object parameter
    * it's linked to.

Core/GDCore/Extensions/PlatformExtension.h

@@ -529,24 +529,6 @@ class GD_CORE_API PlatformExtension {
   std::map<gd::String, gd::ExpressionMetadata>& GetAllStrExpressionsForBehavior(
       gd::String autoType);
 
-  /**
-   * Called to inventory resources used by conditions
-   * (and possibly do work on them, like renaming, etc...)
-   *
-   * \see gd::PlatformExtension::ExposeActionsResources
-   */
-  virtual void ExposeConditionsResources(Instruction& condition,
-                                         gd::ArbitraryResourceWorker& worker){};
-
-  /**
-   * Called to inventory resources used by actions
-   * (and possibly do work on them, like renaming, etc...)
-   *
-   * \see ArbitraryResourceWorker
-   */
-  virtual void ExposeActionsResources(Instruction& action,
-                                      gd::ArbitraryResourceWorker& worker){};
-
   /**
    * \brief Get all the properties of the extension. Properties
    * are shown in the game properties in the editor, and are exported in the

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

@@ -0,0 +1,25 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#if defined(GD_IDE_ONLY)
+#include "GDCore/CommonTools.h"
+#include "GDCore/Serialization/SerializerElement.h"
+#include "EditorSettings.h"
+
+namespace gd {
+
+EditorSettings::EditorSettings() {}
+
+void EditorSettings::SerializeTo(SerializerElement& element) const {
+  element = content;
+}
+
+void EditorSettings::UnserializeFrom(
+    const SerializerElement& element) {
+  content = element;
+}
+
+}  // namespace gd
+#endif

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

@@ -0,0 +1,46 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#if defined(GD_IDE_ONLY)
+#ifndef SCENECANVASSETTINGS_H
+#define SCENECANVASSETTINGS_H
+#include "GDCore/String.h"
+#include "GDCore/Serialization/SerializerElement.h"
+
+namespace gd {
+
+/**
+ * \brief Container for arbitrary serialized data to be used by the editor
+ * to store settings.
+ *
+ * \see Scene
+ */
+class GD_CORE_API EditorSettings {
+ public:
+  EditorSettings();
+  virtual ~EditorSettings(){};
+
+  /** \name Serialization
+   */
+  ///@{
+  /**
+   * \brief Serialize the settings.
+   */
+  void SerializeTo(SerializerElement& element) const;
+
+  /**
+   * \brief Unserialize the settings.
+   */
+  void UnserializeFrom(const SerializerElement& element);
+  ///@}
+
+private:
+  gd::SerializerElement content; ///< Arbitrary content, depending on the editor.
+};
+
+}  // namespace gd
+
+#endif  // SCENECANVASSETTINGS_H
+#endif

Core/GDCore/IDE/Dialogs/LayoutEditorCanvas/LayoutEditorCanvasOptions.cpp

@@ -1,59 +0,0 @@
-/*
- * GDevelop Core
- * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
- * reserved. This project is released under the MIT License.
- */
-#if defined(GD_IDE_ONLY)
-#include "LayoutEditorCanvasOptions.h"
-#include "GDCore/CommonTools.h"
-#include "GDCore/Serialization/SerializerElement.h"
-
-namespace gd {
-
-LayoutEditorCanvasOptions::LayoutEditorCanvasOptions()
-    : grid(false),
-      snap(true),
-      gridWidth(32),
-      gridHeight(32),
-      gridOffsetX(0),
-      gridOffsetY(0),
-      gridType("rectangular"),
-      gridR(158),
-      gridG(180),
-      gridB(255),
-      zoomFactor(1),
-      windowMask(false) {}
-
-void LayoutEditorCanvasOptions::SerializeTo(SerializerElement& element) const {
-  element.SetAttribute("grid", grid);
-  element.SetAttribute("snap", snap);
-  element.SetAttribute("gridWidth", gridWidth);
-  element.SetAttribute("gridHeight", gridHeight);
-  element.SetAttribute("gridOffsetX", gridOffsetX);
-  element.SetAttribute("gridOffsetY", gridOffsetY);
-  element.SetAttribute("gridType", gridType);
-  element.SetAttribute("gridR", gridR);
-  element.SetAttribute("gridG", gridG);
-  element.SetAttribute("gridB", gridB);
-  element.SetAttribute("zoomFactor", zoomFactor);
-  element.SetAttribute("windowMask", windowMask);
-}
-
-void LayoutEditorCanvasOptions::UnserializeFrom(
-    const SerializerElement& element) {
-  grid = element.GetBoolAttribute("grid");
-  snap = element.GetBoolAttribute("snap");
-  windowMask = element.GetBoolAttribute("windowMask");
-  gridWidth = element.GetDoubleAttribute("gridWidth", 32);
-  gridHeight = element.GetDoubleAttribute("gridHeight", 32);
-  gridOffsetX = element.GetDoubleAttribute("gridOffsetX", 0);
-  gridOffsetY = element.GetDoubleAttribute("gridOffsetY", 0);
-  gridType = element.GetStringAttribute("gridType", "rectangular");
-  gridR = element.GetIntAttribute("gridR", 158);
-  gridG = element.GetIntAttribute("gridG", 180);
-  gridB = element.GetIntAttribute("gridB", 255);
-  zoomFactor = element.GetDoubleAttribute("zoomFactor", 1.0);
-}
-
-}  // namespace gd
-#endif

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

@@ -1,58 +0,0 @@
-/*
- * GDevelop Core
- * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
- * reserved. This project is released under the MIT License.
- */
-#if defined(GD_IDE_ONLY)
-#ifndef SCENECANVASSETTINGS_H
-#define SCENECANVASSETTINGS_H
-#include "GDCore/String.h"
-namespace gd {
-class SerializerElement;
-}
-
-namespace gd {
-
-/**
- * \brief Tool class used to store settings of a LayoutEditorCanvas.
- *
- * \see Scene
- */
-class GD_CORE_API LayoutEditorCanvasOptions {
- public:
-  LayoutEditorCanvasOptions();
-  virtual ~LayoutEditorCanvasOptions(){};
-
-  /** \name Serialization
-   */
-  ///@{
-
-  /**
-   * \brief Serialize instances container.
-   */
-  void SerializeTo(SerializerElement& element) const;
-
-  /**
-   * \brief Unserialize the instances container.
-   */
-  void UnserializeFrom(const SerializerElement& element);
-  ///@}
-
-  bool grid;         ///< True if grid activated in editor
-  bool snap;         ///< True if snap to grid activated in editor
-  double gridWidth;    ///< Grid width in editor
-  double gridHeight;   ///< Grid height in editor
-  double gridOffsetX;  ///< Grid X offset
-  double gridOffsetY;  ///< Grid Y offset
-  gd::String gridType; ///< Grid type: rectangular or isometric
-  int gridR;         ///< Grid red color in editor
-  int gridG;         ///< Grid green color in editor
-  int gridB;         ///< Grid blue color in editor
-  double zoomFactor;  ///< Stores the zoom factor
-  bool windowMask;   ///< True if window mask displayed in editor
-};
-
-}  // namespace gd
-
-#endif  // SCENECANVASSETTINGS_H
-#endif

Core/GDCore/IDE/Events/EventsBehaviorRenamer.cpp

@@ -0,0 +1,164 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "GDCore/IDE/Events/EventsBehaviorRenamer.h"
+
+#include <map>
+#include <memory>
+#include <vector>
+
+#include "GDCore/Events/Event.h"
+#include "GDCore/Events/EventsList.h"
+#include "GDCore/Events/Parsers/ExpressionParser2.h"
+#include "GDCore/Events/Parsers/ExpressionParser2NodePrinter.h"
+#include "GDCore/Events/Parsers/ExpressionParser2NodeWorker.h"
+#include "GDCore/Extensions/Metadata/MetadataProvider.h"
+#include "GDCore/Extensions/Metadata/ParameterMetadataTools.h"
+#include "GDCore/IDE/Events/ExpressionValidator.h"
+#include "GDCore/Project/Layout.h"
+#include "GDCore/Project/Project.h"
+#include "GDCore/String.h"
+#include "GDCore/Tools/Log.h"
+
+namespace gd {
+
+/**
+ * \brief Go through the nodes and rename any reference to an object behavior.
+ *
+ * \see gd::ExpressionParser2
+ */
+class GD_CORE_API ExpressionBehaviorRenamer
+    : public ExpressionParser2NodeWorker {
+ public:
+  ExpressionBehaviorRenamer(const gd::ObjectsContainer& globalObjectsContainer_,
+                            const gd::ObjectsContainer& objectsContainer_,
+                            const gd::String& objectName_,
+                            const gd::String& oldBehaviorName_,
+                            const gd::String& newBehaviorName_)
+      : hasDoneRenaming(false),
+        globalObjectsContainer(globalObjectsContainer_),
+        objectsContainer(objectsContainer_),
+        objectName(objectName_),
+        oldBehaviorName(oldBehaviorName_),
+        newBehaviorName(newBehaviorName_){};
+  virtual ~ExpressionBehaviorRenamer(){};
+
+  bool HasDoneRenaming() const { return hasDoneRenaming; }
+
+ protected:
+  void OnVisitSubExpressionNode(SubExpressionNode& node) override {
+    node.expression->Visit(*this);
+  }
+  void OnVisitOperatorNode(OperatorNode& node) override {
+    node.leftHandSide->Visit(*this);
+    node.rightHandSide->Visit(*this);
+  }
+  void OnVisitUnaryOperatorNode(UnaryOperatorNode& node) override {
+    node.factor->Visit(*this);
+  }
+  void OnVisitNumberNode(NumberNode& node) override {}
+  void OnVisitTextNode(TextNode& node) override {}
+  void OnVisitVariableNode(VariableNode& node) override {
+    if (node.child) node.child->Visit(*this);
+  }
+  void OnVisitVariableAccessorNode(VariableAccessorNode& node) override {
+    if (node.child) node.child->Visit(*this);
+  }
+  void OnVisitVariableBracketAccessorNode(
+      VariableBracketAccessorNode& node) override {
+    node.expression->Visit(*this);
+    if (node.child) node.child->Visit(*this);
+  }
+  void OnVisitIdentifierNode(IdentifierNode& node) override {}
+  void OnVisitObjectFunctionNameNode(ObjectFunctionNameNode& node) override {
+    if (!node.behaviorFunctionName.empty()) {
+      // Behavior function name
+      if (node.objectName == objectName && node.objectFunctionOrBehaviorName == oldBehaviorName) {
+          node.objectFunctionOrBehaviorName = newBehaviorName;
+          hasDoneRenaming = true;
+      }
+    }
+  }
+  void OnVisitFunctionCallNode(FunctionCallNode& node) override {
+    if (!node.behaviorName.empty()) {
+      // Behavior function call
+      if (node.objectName == objectName && node.behaviorName == oldBehaviorName) {
+        node.behaviorName = newBehaviorName;
+        hasDoneRenaming = true;
+      }
+    }
+
+    for (auto& parameter : node.parameters) {
+      parameter->Visit(*this);
+    }
+  }
+  void OnVisitEmptyNode(EmptyNode& node) override {}
+
+ private:
+  bool hasDoneRenaming;
+  const gd::ObjectsContainer& globalObjectsContainer;
+  const gd::ObjectsContainer& objectsContainer;
+  const gd::String& objectName;  // The object name for which the behavior
+                                 // must be replaced.
+  const gd::String& oldBehaviorName;
+  const gd::String& newBehaviorName;
+};
+
+bool EventsBehaviorRenamer::DoVisitInstruction(gd::Instruction& instruction,
+                                               bool isCondition) {
+  const auto& metadata = isCondition
+                             ? gd::MetadataProvider::GetConditionMetadata(
+                                   platform, instruction.GetType())
+                             : gd::MetadataProvider::GetActionMetadata(
+                                   platform, instruction.GetType());
+
+  gd::ParameterMetadataTools::IterateOverParametersWithIndex(
+      instruction.GetParameters(),
+      metadata.GetParameters(),
+      [&](const gd::ParameterMetadata& parameterMetadata,
+          const gd::String& parameterValue,
+          size_t parameterIndex,
+          const gd::String& lastObjectName) {
+        const gd::String& type = parameterMetadata.type;
+
+        if (gd::ParameterMetadata::IsBehavior(type)) {
+          if (lastObjectName == objectName) {
+            if (parameterValue == oldBehaviorName) {
+              instruction.SetParameter(parameterIndex,
+                                       gd::Expression(newBehaviorName));
+            }
+          }
+        } else {
+          gd::ExpressionParser2 parser(
+              platform, GetGlobalObjectsContainer(), GetObjectsContainer());
+          auto node =
+              gd::ParameterMetadata::IsExpression("number", type)
+                  ? parser.ParseExpression("number", parameterValue)
+                  : (gd::ParameterMetadata::IsExpression("string", type)
+                         ? parser.ParseExpression("string", parameterValue)
+                         : std::unique_ptr<gd::ExpressionNode>());
+          if (node) {
+            ExpressionBehaviorRenamer renamer(GetGlobalObjectsContainer(),
+                                              GetObjectsContainer(),
+                                              objectName,
+                                              oldBehaviorName,
+                                              newBehaviorName);
+            node->Visit(renamer);
+
+            if (renamer.HasDoneRenaming()) {
+              instruction.SetParameter(
+                  parameterIndex,
+                  ExpressionParser2NodePrinter::PrintNode(*node));
+            }
+          }
+        }
+      });
+
+  return false;
+}
+
+EventsBehaviorRenamer::~EventsBehaviorRenamer() {}
+
+}  // namespace gd

Core/GDCore/IDE/Events/EventsBehaviorRenamer.h

@@ -0,0 +1,52 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#ifndef EventsBehaviorRenamer_H
+#define EventsBehaviorRenamer_H
+#include <map>
+#include <memory>
+#include <vector>
+#include "GDCore/IDE/Events/ArbitraryEventsWorker.h"
+#include "GDCore/String.h"
+namespace gd {
+class BaseEvent;
+class Platform;
+class EventsList;
+}  // namespace gd
+
+namespace gd {
+
+/**
+ * \brief Replace in expressions and in parameters of actions or conditions, references
+ * to the name of a behavior of an object by another name.
+ *
+ * \ingroup IDE
+ */
+class GD_CORE_API EventsBehaviorRenamer : public ArbitraryEventsWorkerWithContext {
+ public:
+  EventsBehaviorRenamer(const gd::Platform &platform_,
+  const gd::String& objectName_,
+  const gd::String& oldBehaviorName_,
+  const gd::String& newBehaviorName_) :
+    platform(platform_),
+    objectName(objectName_),
+    oldBehaviorName(oldBehaviorName_),
+    newBehaviorName(newBehaviorName_)
+  {};
+  virtual ~EventsBehaviorRenamer();
+
+ private:
+  bool DoVisitInstruction(gd::Instruction &instruction,
+                          bool isCondition) override;
+
+  const gd::Platform &platform;
+  gd::String objectName;
+  gd::String oldBehaviorName;
+  gd::String newBehaviorName;
+};
+
+}  // namespace gd
+
+#endif  // EventsBehaviorRenamer_H

Core/GDCore/IDE/Events/EventsRefactorer.cpp

@@ -5,23 +5,28 @@
  */
 
 #include "GDCore/IDE/Events/EventsRefactorer.h"
+
 #include <memory>
+
 #include "GDCore/CommonTools.h"
 #include "GDCore/Events/Event.h"
 #include "GDCore/Events/EventsList.h"
 #include "GDCore/Events/Parsers/ExpressionParser2.h"
-#include "GDCore/Events/Parsers/ExpressionParser2NodeWorker.h"
 #include "GDCore/Events/Parsers/ExpressionParser2NodePrinter.h"
-#include "GDCore/IDE/Events/ExpressionValidator.h"
+#include "GDCore/Events/Parsers/ExpressionParser2NodeWorker.h"
 #include "GDCore/Extensions/Metadata/ExpressionMetadata.h"
 #include "GDCore/Extensions/Metadata/MetadataProvider.h"
 #include "GDCore/Extensions/Platform.h"
+#include "GDCore/IDE/Events/ExpressionValidator.h"
 #include "GDCore/Project/ObjectsContainer.h"
+#include "GDCore/IDE/Events/InstructionSentenceFormatter.h"
 
 using namespace std;
 
 namespace gd {
 
+const gd::String EventsRefactorer::searchIgnoredCharacters = ";:,#()";
+
 /**
  * \brief Go through the nodes and change the given object name to a new one.
  *
@@ -31,10 +36,14 @@ class GD_CORE_API ExpressionObjectRenamer : public ExpressionParser2NodeWorker {
  public:
   ExpressionObjectRenamer(const gd::String& objectName_,
                           const gd::String& objectNewName_)
-      : hasDoneRenaming(false), objectName(objectName_), objectNewName(objectNewName_){};
+      : hasDoneRenaming(false),
+        objectName(objectName_),
+        objectNewName(objectNewName_){};
   virtual ~ExpressionObjectRenamer(){};
 
-  static bool Rename(gd::ExpressionNode & node, const gd::String& objectName, const gd::String& objectNewName) {
+  static bool Rename(gd::ExpressionNode& node,
+                     const gd::String& objectName,
+                     const gd::String& objectNewName) {
     if (ExpressionValidator::HasNoErrors(node)) {
       ExpressionObjectRenamer renamer(objectName, objectNewName);
       node.Visit(renamer);
@@ -72,7 +81,8 @@ class GD_CORE_API ExpressionObjectRenamer : public ExpressionParser2NodeWorker {
     if (node.child) node.child->Visit(*this);
   }
   void OnVisitIdentifierNode(IdentifierNode& node) override {
-    if (gd::ParameterMetadata::IsObject(node.type) && node.identifierName == objectName) {
+    if (gd::ParameterMetadata::IsObject(node.type) &&
+        node.identifierName == objectName) {
       hasDoneRenaming = true;
       node.identifierName = objectNewName;
     }
@@ -109,10 +119,11 @@ class GD_CORE_API ExpressionObjectRenamer : public ExpressionParser2NodeWorker {
 class GD_CORE_API ExpressionObjectFinder : public ExpressionParser2NodeWorker {
  public:
   ExpressionObjectFinder(const gd::String& objectName_)
-      : hasObject(false), objectName(objectName_) {};
+      : hasObject(false), objectName(objectName_){};
   virtual ~ExpressionObjectFinder(){};
 
-  static bool CheckIfHasObject(gd::ExpressionNode & node, const gd::String & objectName) {
+  static bool CheckIfHasObject(gd::ExpressionNode& node,
+                               const gd::String& objectName) {
     if (ExpressionValidator::HasNoErrors(node)) {
       ExpressionObjectFinder finder(objectName);
       node.Visit(finder);
@@ -150,7 +161,8 @@ class GD_CORE_API ExpressionObjectFinder : public ExpressionParser2NodeWorker {
     if (node.child) node.child->Visit(*this);
   }
   void OnVisitIdentifierNode(IdentifierNode& node) override {
-    if (gd::ParameterMetadata::IsObject(node.type) && node.identifierName == objectName) {
+    if (gd::ParameterMetadata::IsObject(node.type) &&
+        node.identifierName == objectName) {
       hasObject = true;
     }
   }
@@ -183,7 +195,7 @@ bool EventsRefactorer::RenameObjectInActions(const gd::Platform& platform,
   bool somethingModified = false;
 
   for (std::size_t aId = 0; aId < actions.size(); ++aId) {
-    gd::InstructionMetadata instrInfos =
+    const gd::InstructionMetadata& instrInfos =
         MetadataProvider::GetActionMetadata(platform, actions[aId].GetType());
     for (std::size_t pNb = 0; pNb < instrInfos.parameters.size(); ++pNb) {
       // Replace object's name in parameters
@@ -194,20 +206,24 @@ bool EventsRefactorer::RenameObjectInActions(const gd::Platform& platform,
       else if (ParameterMetadata::IsExpression(
                    "number", instrInfos.parameters[pNb].type)) {
         gd::ExpressionParser2 parser(platform, project, layout);
-        auto node = parser.ParseExpression("number", actions[aId].GetParameter(pNb).GetPlainString());
+        auto node = parser.ParseExpression(
+            "number", actions[aId].GetParameter(pNb).GetPlainString());
 
         if (ExpressionObjectRenamer::Rename(*node, oldName, newName)) {
-          actions[aId].SetParameter(pNb, ExpressionParser2NodePrinter::PrintNode(*node));
+          actions[aId].SetParameter(
+              pNb, ExpressionParser2NodePrinter::PrintNode(*node));
         }
       }
       // Replace object's name in text expressions
       else if (ParameterMetadata::IsExpression(
                    "string", instrInfos.parameters[pNb].type)) {
         gd::ExpressionParser2 parser(platform, project, layout);
-        auto node = parser.ParseExpression("string", actions[aId].GetParameter(pNb).GetPlainString());
+        auto node = parser.ParseExpression(
+            "string", actions[aId].GetParameter(pNb).GetPlainString());
 
         if (ExpressionObjectRenamer::Rename(*node, oldName, newName)) {
-          actions[aId].SetParameter(pNb, ExpressionParser2NodePrinter::PrintNode(*node));
+          actions[aId].SetParameter(
+              pNb, ExpressionParser2NodePrinter::PrintNode(*node));
         }
       }
     }
@@ -236,8 +252,9 @@ bool EventsRefactorer::RenameObjectInConditions(
   bool somethingModified = false;
 
   for (std::size_t cId = 0; cId < conditions.size(); ++cId) {
-    gd::InstructionMetadata instrInfos = MetadataProvider::GetConditionMetadata(
+    const gd::InstructionMetadata& instrInfos =
-        platform, conditions[cId].GetType());
+        MetadataProvider::GetConditionMetadata(platform,
+                                               conditions[cId].GetType());
     for (std::size_t pNb = 0; pNb < instrInfos.parameters.size(); ++pNb) {
       // Replace object's name in parameters
       if (gd::ParameterMetadata::IsObject(instrInfos.parameters[pNb].type) &&
@@ -247,20 +264,24 @@ bool EventsRefactorer::RenameObjectInConditions(
       else if (ParameterMetadata::IsExpression(
                    "number", instrInfos.parameters[pNb].type)) {
         gd::ExpressionParser2 parser(platform, project, layout);
-        auto node = parser.ParseExpression("number", conditions[cId].GetParameter(pNb).GetPlainString());
+        auto node = parser.ParseExpression(
+            "number", conditions[cId].GetParameter(pNb).GetPlainString());
 
         if (ExpressionObjectRenamer::Rename(*node, oldName, newName)) {
-          conditions[cId].SetParameter(pNb, ExpressionParser2NodePrinter::PrintNode(*node));
+          conditions[cId].SetParameter(
+              pNb, ExpressionParser2NodePrinter::PrintNode(*node));
         }
       }
       // Replace object's name in text expressions
       else if (ParameterMetadata::IsExpression(
                    "string", instrInfos.parameters[pNb].type)) {
         gd::ExpressionParser2 parser(platform, project, layout);
-        auto node = parser.ParseExpression("string", conditions[cId].GetParameter(pNb).GetPlainString());
+        auto node = parser.ParseExpression(
+            "string", conditions[cId].GetParameter(pNb).GetPlainString());
 
         if (ExpressionObjectRenamer::Rename(*node, oldName, newName)) {
-          conditions[cId].SetParameter(pNb, ExpressionParser2NodePrinter::PrintNode(*node));
+          conditions[cId].SetParameter(
+              pNb, ExpressionParser2NodePrinter::PrintNode(*node));
         }
       }
     }
@@ -293,8 +314,8 @@ bool EventsRefactorer::RenameObjectInEventParameters(
       expression.GetPlainString() == oldName)
     expression = gd::Expression(newName);
   // Replace object's name in expressions
-  else if (ParameterMetadata::IsExpression(
+  else if (ParameterMetadata::IsExpression("number",
-               "number", parameterMetadata.GetType())) {
+                                           parameterMetadata.GetType())) {
     gd::ExpressionParser2 parser(platform, project, layout);
     auto node = parser.ParseExpression("number", expression.GetPlainString());
 
@@ -303,8 +324,8 @@ bool EventsRefactorer::RenameObjectInEventParameters(
     }
   }
   // Replace object's name in text expressions
-  else if (ParameterMetadata::IsExpression(
+  else if (ParameterMetadata::IsExpression("string",
-               "string", parameterMetadata.GetType())) {
+                                           parameterMetadata.GetType())) {
     gd::ExpressionParser2 parser(platform, project, layout);
     auto node = parser.ParseExpression("string", expression.GetPlainString());
 
@@ -337,13 +358,19 @@ void EventsRefactorer::RenameObjectInEvents(const gd::Platform& platform,
           platform, project, layout, *actionsVectors[j], oldName, newName);
     }
 
-    vector<pair<gd::Expression*, gd::ParameterMetadata>> expressionsWithMetadata =
+    vector<pair<gd::Expression*, gd::ParameterMetadata>>
-        events[i].GetAllExpressionsWithMetadata();
+        expressionsWithMetadata = events[i].GetAllExpressionsWithMetadata();
     for (std::size_t j = 0; j < expressionsWithMetadata.size(); ++j) {
       gd::Expression* expression = expressionsWithMetadata[j].first;
-      gd::ParameterMetadata parameterMetadata = expressionsWithMetadata[j].second;
+      gd::ParameterMetadata parameterMetadata =
-      bool somethingModified = RenameObjectInEventParameters(
+          expressionsWithMetadata[j].second;
-        platform, project, layout, *expression, parameterMetadata, oldName, newName);
+      bool somethingModified = RenameObjectInEventParameters(platform,
+                                                             project,
+                                                             layout,
+                                                             *expression,
+                                                             parameterMetadata,
+                                                             oldName,
+                                                             newName);
     }
 
     if (events[i].CanHaveSubEvents())
@@ -366,7 +393,7 @@ bool EventsRefactorer::RemoveObjectInActions(const gd::Platform& platform,
   for (std::size_t aId = 0; aId < actions.size(); ++aId) {
     bool deleteMe = false;
 
-    gd::InstructionMetadata instrInfos =
+    const gd::InstructionMetadata& instrInfos =
         MetadataProvider::GetActionMetadata(platform, actions[aId].GetType());
     for (std::size_t pNb = 0; pNb < instrInfos.parameters.size(); ++pNb) {
       // Find object's name in parameters
@@ -379,7 +406,8 @@ bool EventsRefactorer::RemoveObjectInActions(const gd::Platform& platform,
       else if (ParameterMetadata::IsExpression(
                    "number", instrInfos.parameters[pNb].type)) {
         gd::ExpressionParser2 parser(platform, project, layout);
-        auto node = parser.ParseExpression("number", actions[aId].GetParameter(pNb).GetPlainString());
+        auto node = parser.ParseExpression(
+            "number", actions[aId].GetParameter(pNb).GetPlainString());
 
         if (ExpressionObjectFinder::CheckIfHasObject(*node, name)) {
           deleteMe = true;
@@ -390,7 +418,8 @@ bool EventsRefactorer::RemoveObjectInActions(const gd::Platform& platform,
       else if (ParameterMetadata::IsExpression(
                    "string", instrInfos.parameters[pNb].type)) {
         gd::ExpressionParser2 parser(platform, project, layout);
-        auto node = parser.ParseExpression("string", actions[aId].GetParameter(pNb).GetPlainString());
+        auto node = parser.ParseExpression(
+            "string", actions[aId].GetParameter(pNb).GetPlainString());
 
         if (ExpressionObjectFinder::CheckIfHasObject(*node, name)) {
           deleteMe = true;
@@ -427,8 +456,9 @@ bool EventsRefactorer::RemoveObjectInConditions(
   for (std::size_t cId = 0; cId < conditions.size(); ++cId) {
     bool deleteMe = false;
 
-    gd::InstructionMetadata instrInfos = MetadataProvider::GetConditionMetadata(
+    const gd::InstructionMetadata& instrInfos =
-        platform, conditions[cId].GetType());
+        MetadataProvider::GetConditionMetadata(platform,
+                                               conditions[cId].GetType());
     for (std::size_t pNb = 0; pNb < instrInfos.parameters.size(); ++pNb) {
       // Find object's name in parameters
       if (gd::ParameterMetadata::IsObject(instrInfos.parameters[pNb].type) &&
@@ -440,7 +470,8 @@ bool EventsRefactorer::RemoveObjectInConditions(
       else if (ParameterMetadata::IsExpression(
                    "number", instrInfos.parameters[pNb].type)) {
         gd::ExpressionParser2 parser(platform, project, layout);
-        auto node = parser.ParseExpression("number", conditions[cId].GetParameter(pNb).GetPlainString());
+        auto node = parser.ParseExpression(
+            "number", conditions[cId].GetParameter(pNb).GetPlainString());
 
         if (ExpressionObjectFinder::CheckIfHasObject(*node, name)) {
           deleteMe = true;
@@ -451,7 +482,8 @@ bool EventsRefactorer::RemoveObjectInConditions(
       else if (ParameterMetadata::IsExpression(
                    "string", instrInfos.parameters[pNb].type)) {
         gd::ExpressionParser2 parser(platform, project, layout);
-        auto node = parser.ParseExpression("string", conditions[cId].GetParameter(pNb).GetPlainString());
+        auto node = parser.ParseExpression(
+            "string", conditions[cId].GetParameter(pNb).GetPlainString());
 
         if (ExpressionObjectFinder::CheckIfHasObject(*node, name)) {
           deleteMe = true;
@@ -646,16 +678,27 @@ bool EventsRefactorer::ReplaceStringInConditions(
 }
 
 vector<EventsSearchResult> EventsRefactorer::SearchInEvents(
-    gd::ObjectsContainer& project,
+    const gd::Platform& platform,
-    gd::ObjectsContainer& layout,
     gd::EventsList& events,
     gd::String search,
     bool matchCase,
     bool inConditions,
     bool inActions,
-    bool inEventStrings) {
+    bool inEventStrings,
+    bool inEventSentences) {
   vector<EventsSearchResult> results;
 
+  const gd::String& ignored_characters = EventsRefactorer::searchIgnoredCharacters;
+
+  search.replace_if(search.begin(),
+                    search.end(),
+                    [ignored_characters](const char &c) {
+                      return ignored_characters.find(c) != gd::String::npos;
+                    },
+                    "");
+  search = search.LeftTrim().RightTrim();
+  search.RemoveConsecutiveOccurrences(search.begin(), search.end(), ' ');
+
   for (std::size_t i = 0; i < events.size(); ++i) {
     bool eventAddedInResults = false;
 
@@ -665,7 +708,7 @@ vector<EventsSearchResult> EventsRefactorer::SearchInEvents(
       for (std::size_t j = 0; j < conditionsVectors.size(); ++j) {
         if (!eventAddedInResults &&
             SearchStringInConditions(
-                project, layout, *conditionsVectors[j], search, matchCase)) {
+                platform, *conditionsVectors[j], search, matchCase, inEventSentences)) {
           results.push_back(EventsSearchResult(
               std::weak_ptr<gd::BaseEvent>(events.GetEventSmartPtr(i)),
               &events,
@@ -680,7 +723,7 @@ vector<EventsSearchResult> EventsRefactorer::SearchInEvents(
       for (std::size_t j = 0; j < actionsVectors.size(); ++j) {
         if (!eventAddedInResults &&
             SearchStringInActions(
-                project, layout, *actionsVectors[j], search, matchCase)) {
+                platform, *actionsVectors[j], search, matchCase, inEventSentences)) {
           results.push_back(EventsSearchResult(
               std::weak_ptr<gd::BaseEvent>(events.GetEventSmartPtr(i)),
               &events,
@@ -691,7 +734,7 @@ vector<EventsSearchResult> EventsRefactorer::SearchInEvents(
 
     if (inEventStrings) {
       if (!eventAddedInResults &&
-          SearchStringInEvent(project, layout, events[i], search, matchCase)) {
+          SearchStringInEvent(events[i], search, matchCase)) {
         results.push_back(EventsSearchResult(
             std::weak_ptr<gd::BaseEvent>(events.GetEventSmartPtr(i)),
             &events,
@@ -701,14 +744,14 @@ vector<EventsSearchResult> EventsRefactorer::SearchInEvents(
 
     if (events[i].CanHaveSubEvents()) {
       vector<EventsSearchResult> subResults =
-          SearchInEvents(project,
+          SearchInEvents(platform,
-                         layout,
                          events[i].GetSubEvents(),
                          search,
                          matchCase,
                          inConditions,
                          inActions,
-                         inEventStrings);
+                         inEventStrings,
+                         inEventSentences);
       std::copy(
           subResults.begin(), subResults.end(), std::back_inserter(results));
     }
@@ -717,11 +760,12 @@ vector<EventsSearchResult> EventsRefactorer::SearchInEvents(
   return results;
 }
 
-bool EventsRefactorer::SearchStringInActions(gd::ObjectsContainer& project,
+bool EventsRefactorer::SearchStringInActions(
-                                             gd::ObjectsContainer& layout,
+    const gd::Platform& platform,
-                                             gd::InstructionsList& actions,
+    gd::InstructionsList& actions,
-                                             gd::String search,
+    gd::String search,
-                                             bool matchCase) {
+    bool matchCase,
+    bool inSentences) {
   for (std::size_t aId = 0; aId < actions.size(); ++aId) {
     for (std::size_t pNb = 0; pNb < actions[aId].GetParameters().size();
          ++pNb) {
@@ -736,24 +780,60 @@ bool EventsRefactorer::SearchStringInActions(gd::ObjectsContainer& project,
       if (foundPosition != gd::String::npos) return true;
     }
 
+    if (inSentences && SearchStringInFormattedText(
+                           platform, actions[aId], search, matchCase, false))
+      return true;
+
     if (!actions[aId].GetSubInstructions().empty() &&
-        SearchStringInActions(project,
+        SearchStringInActions(platform,
-                              layout,
                               actions[aId].GetSubInstructions(),
                               search,
-                              matchCase))
+                              matchCase,
+                              inSentences))
       return true;
   }
 
   return false;
 }
 
+bool EventsRefactorer::SearchStringInFormattedText(
+    const gd::Platform& platform,
+    gd::Instruction& instruction,
+    gd::String search,
+    bool matchCase,
+    bool isCondition) {
+  const auto& metadata = isCondition
+                            ? gd::MetadataProvider::GetConditionMetadata(
+                                  platform, instruction.GetType())
+                            : gd::MetadataProvider::GetActionMetadata(
+                                  platform, instruction.GetType());
+  gd::String completeSentence = gd::InstructionSentenceFormatter::Get()->GetFullText(instruction, metadata);
+
+  const gd::String& ignored_characters = EventsRefactorer::searchIgnoredCharacters;
+
+  completeSentence.replace_if(completeSentence.begin(),
+                              completeSentence.end(),
+                              [ignored_characters](const char &c) {
+                                return ignored_characters.find(c) != gd::String::npos;
+                              },
+                              "");
+
+  completeSentence.RemoveConsecutiveOccurrences(
+      completeSentence.begin(), completeSentence.end(), ' ');
+
+  size_t foundPosition = matchCase
+                             ? completeSentence.find(search)
+                             : completeSentence.FindCaseInsensitive(search);
+
+  return foundPosition != gd::String::npos;
+}
+
 bool EventsRefactorer::SearchStringInConditions(
-    gd::ObjectsContainer& project,
+    const gd::Platform& platform,
-    gd::ObjectsContainer& layout,
     gd::InstructionsList& conditions,
     gd::String search,
-    bool matchCase) {
+    bool matchCase,
+    bool inSentences) {
   for (std::size_t cId = 0; cId < conditions.size(); ++cId) {
     for (std::size_t pNb = 0; pNb < conditions[cId].GetParameters().size();
          ++pNb) {
@@ -768,23 +848,25 @@ bool EventsRefactorer::SearchStringInConditions(
       if (foundPosition != gd::String::npos) return true;
     }
 
+    if (inSentences && SearchStringInFormattedText(
+                           platform, conditions[cId], search, matchCase, true))
+      return true;
+
     if (!conditions[cId].GetSubInstructions().empty() &&
-        SearchStringInConditions(project,
+        SearchStringInConditions(platform,
-                                 layout,
                                  conditions[cId].GetSubInstructions(),
                                  search,
-                                 matchCase))
+                                 matchCase,
+                                 inSentences))
       return true;
   }
 
   return false;
 }
 
-bool EventsRefactorer::SearchStringInEvent(gd::ObjectsContainer& project,
+bool EventsRefactorer::SearchStringInEvent(gd::BaseEvent& event,
-                                            gd::ObjectsContainer& layout,
+                                           gd::String search,
-                                            gd::BaseEvent& event,
+                                           bool matchCase) {
-                                            gd::String search,
-                                            bool matchCase) {
   for (gd::String str : event.GetAllSearchableStrings()) {
     if (matchCase) {
       if (str.find(search) != gd::String::npos) return true;

Core/GDCore/IDE/Events/EventsRefactorer.h

@@ -41,7 +41,7 @@ class GD_CORE_API EventsSearchResult {
   std::size_t positionInList;
 
   bool IsEventsListValid() const { return eventsList != nullptr; }
-  
+
   /**
    * \brief Get the events list containing the event pointed by the EventsSearchResult.
    * \warning Only call this when IsEventsListValid returns true.
@@ -49,7 +49,7 @@ class GD_CORE_API EventsSearchResult {
   const gd::EventsList & GetEventsList() const { return *eventsList; }
 
   std::size_t GetPositionInList() const { return positionInList; }
-  
+
   bool IsEventValid() const { return !event.expired(); }
 
   /**
@@ -72,7 +72,7 @@ class GD_CORE_API EventsSearchResult {
 class GD_CORE_API EventsRefactorer {
  public:
   /**
-   * Replace all occurences of an object name by another name
+   * Replace all occurrences of an object name by another name
    * ( include : objects in parameters and in math/text expressions of all
    * events ).
    */
@@ -98,14 +98,14 @@ class GD_CORE_API EventsRefactorer {
    * \return A vector containing EventsSearchResult objects filled with events
    * containing the string
    */
-  static std::vector<EventsSearchResult> SearchInEvents(gd::ObjectsContainer& project,
+  static std::vector<EventsSearchResult> SearchInEvents(const gd::Platform& platform,
-                                                        gd::ObjectsContainer& layout,
                                                         gd::EventsList& events,
                                                         gd::String search,
                                                         bool matchCase,
                                                         bool inConditions,
                                                         bool inActions,
-                                                        bool inEventStrings);
+                                                        bool inEventStrings,
+                                                        bool inEventSentences);
 
   /**
    * Replace all occurrences of a gd::String in events
@@ -123,7 +123,7 @@ class GD_CORE_API EventsRefactorer {
 
  private:
   /**
-   * Replace all occurences of an object name by another name in an action
+   * Replace all occurrences of an object name by another name in an action
    * ( include : objects in parameters and in math/text expressions ).
    *
    * \return true if something was modified.
@@ -136,7 +136,7 @@ class GD_CORE_API EventsRefactorer {
                                     gd::String newName);
 
   /**
-   * Replace all occurences of an object name by another name in a condition
+   * Replace all occurrences of an object name by another name in a condition
    * ( include : objects in parameters and in math/text expressions ).
    *
    * \return true if something was modified.
@@ -185,7 +185,7 @@ class GD_CORE_API EventsRefactorer {
                                     gd::String name);
 
   /**
-   * Replace all occurences of a gd::String in conditions
+   * Replace all occurrences of a gd::String in conditions
    *
    * \return true if something was modified.
    */
@@ -197,7 +197,7 @@ class GD_CORE_API EventsRefactorer {
                                         bool matchCase);
 
   /**
-   * Replace all occurences of a gd::String in actions
+   * Replace all occurrences of a gd::String in actions
    *
    * \return true if something was modified.
    */
@@ -208,21 +208,26 @@ class GD_CORE_API EventsRefactorer {
                                      gd::String newString,
                                      bool matchCase);
 
-  static bool SearchStringInActions(gd::ObjectsContainer& project,
+  static bool SearchStringInFormattedText(const gd::Platform& platform,
-                                    gd::ObjectsContainer& layout,
+                                          gd::Instruction& instruction,
+                                          gd::String search,
+                                          bool matchCase,
+                                          bool isCondition);
+  static bool SearchStringInActions(const gd::Platform& platform,
                                     gd::InstructionsList& actions,
                                     gd::String search,
-                                    bool matchCase);
+                                    bool matchCase,
-  static bool SearchStringInConditions(gd::ObjectsContainer& project,
+                                    bool inSentences);
-                                       gd::ObjectsContainer& layout,
+  static bool SearchStringInConditions(const gd::Platform& platform,
                                        gd::InstructionsList& conditions,
                                        gd::String search,
-                                       bool matchCase);
+                                       bool matchCase,
-  static bool SearchStringInEvent(gd::ObjectsContainer& project,
+                                       bool inSentences);
-                                       gd::ObjectsContainer& layout,
+  static bool SearchStringInEvent(gd::BaseEvent& events,
-                                       gd::BaseEvent& events,
+                                  gd::String search,
-                                       gd::String search,
+                                  bool matchCase);
-                                       bool matchCase);
+
+  static const gd::String searchIgnoredCharacters;
 
   EventsRefactorer(){};
 };

Core/GDCore/IDE/Events/EventsVariablesFinder.cpp

@@ -151,7 +151,7 @@ std::set<gd::String> EventsVariablesFinder::FindArgumentsInInstructions(
 
   for (std::size_t aId = 0; aId < instructions.size(); ++aId) {
     gd::String lastObjectParameter = "";
-    gd::InstructionMetadata instrInfos =
+    const gd::InstructionMetadata& instrInfos =
         instructionsAreConditions ? MetadataProvider::GetConditionMetadata(
                                         platform, instructions[aId].GetType())
                                   : MetadataProvider::GetActionMetadata(

Core/GDCore/IDE/Events/ExpressionCompletionFinder.h

@@ -9,12 +9,12 @@
 #include <memory>
 #include <vector>
 
+#include "GDCore/Events/Parsers/ExpressionParser2.h"
 #include "GDCore/Events/Parsers/ExpressionParser2Node.h"
 #include "GDCore/Events/Parsers/ExpressionParser2NodeWorker.h"
 #include "GDCore/Extensions/Metadata/ExpressionMetadata.h"
 #include "GDCore/Extensions/Metadata/InstructionMetadata.h"
 #include "GDCore/IDE/Events/ExpressionNodeLocationFinder.h"
-#include "GDCore/Events/Parsers/ExpressionParser2.h"
 
 namespace gd {
 class Expression;
@@ -32,7 +32,7 @@ namespace gd {
  * The IDE is responsible for actually *searching* and showing the completions -
  * this is only describing what must be listed.
  */
-struct ExpressionCompletionDescription {
+struct GD_CORE_API ExpressionCompletionDescription {
  public:
   /**
    * The different kind of completions that can be described.
@@ -274,7 +274,7 @@ struct ExpressionCompletionDescription {
 /**
  * \brief Turn an ExpressionCompletionDescription to a string.
  */
-std::ostream& operator<<(std::ostream& os,
+GD_CORE_API std::ostream& operator<<(std::ostream& os,
                          ExpressionCompletionDescription const& value);
 
 /**
@@ -326,10 +326,7 @@ class GD_CORE_API ExpressionCompletionFinder
         node.type, "", searchedPosition + 1, searchedPosition + 1));
   }
   void OnVisitOperatorNode(OperatorNode& node) override {
-    completions.push_back(ExpressionCompletionDescription::ForObject(
+    // No completions.
-        node.type, "", searchedPosition + 1, searchedPosition + 1));
-    completions.push_back(ExpressionCompletionDescription::ForExpression(
-        node.type, "", searchedPosition + 1, searchedPosition + 1));
   }
   void OnVisitUnaryOperatorNode(UnaryOperatorNode& node) override {
     completions.push_back(ExpressionCompletionDescription::ForObject(
@@ -359,8 +356,9 @@ class GD_CORE_API ExpressionCompletionFinder
       }
       // Search the parameter metadata index skipping invisible ones.
       size_t visibleParameterIndex = 0;
-      size_t metadataParameterIndex = ExpressionParser2::WrittenParametersFirstIndex(
+      size_t metadataParameterIndex =
-          functionCall->objectName, functionCall->behaviorName);
+          ExpressionParser2::WrittenParametersFirstIndex(
+              functionCall->objectName, functionCall->behaviorName);
 
       const gd::ParameterMetadata* parameterMetadata = nullptr;
       while (metadataParameterIndex <

Core/GDCore/IDE/Events/ExpressionsParameterMover.cpp

@@ -4,9 +4,11 @@
  * reserved. This project is released under the MIT License.
  */
 #include "GDCore/IDE/Events/ExpressionsParameterMover.h"
+
 #include <map>
 #include <memory>
 #include <vector>
+
 #include "GDCore/Events/Event.h"
 #include "GDCore/Events/EventsList.h"
 #include "GDCore/Events/Parsers/ExpressionParser2.h"
@@ -134,10 +136,11 @@ class GD_CORE_API ExpressionParameterMover
 
 bool ExpressionsParameterMover::DoVisitInstruction(gd::Instruction& instruction,
                                                    bool isCondition) {
-  auto& metadata = isCondition ? gd::MetadataProvider::GetConditionMetadata(
+  const auto& metadata = isCondition
-                                     platform, instruction.GetType())
+                             ? gd::MetadataProvider::GetConditionMetadata(
-                               : gd::MetadataProvider::GetActionMetadata(
+                                   platform, instruction.GetType())
-                                     platform, instruction.GetType());
+                             : gd::MetadataProvider::GetActionMetadata(
+                                   platform, instruction.GetType());
 
   for (std::size_t pNb = 0; pNb < metadata.parameters.size() &&
                             pNb < instruction.GetParametersCount();

Core/GDCore/IDE/Events/ExpressionsRenamer.cpp

@@ -4,9 +4,11 @@
  * reserved. This project is released under the MIT License.
  */
 #include "GDCore/IDE/Events/ExpressionsRenamer.h"
+
 #include <map>
 #include <memory>
 #include <vector>
+
 #include "GDCore/Events/Event.h"
 #include "GDCore/Events/EventsList.h"
 #include "GDCore/Events/Parsers/ExpressionParser2.h"
@@ -145,10 +147,11 @@ class GD_CORE_API ExpressionFunctionRenamer
 
 bool ExpressionsRenamer::DoVisitInstruction(gd::Instruction& instruction,
                                             bool isCondition) {
-  auto& metadata = isCondition ? gd::MetadataProvider::GetConditionMetadata(
+  const auto& metadata = isCondition
-                                     platform, instruction.GetType())
+                             ? gd::MetadataProvider::GetConditionMetadata(
-                               : gd::MetadataProvider::GetActionMetadata(
+                                   platform, instruction.GetType())
-                                     platform, instruction.GetType());
+                             : gd::MetadataProvider::GetActionMetadata(
+                                   platform, instruction.GetType());
 
   for (std::size_t pNb = 0; pNb < metadata.parameters.size() &&
                             pNb < instruction.GetParametersCount();

Core/GDCore/IDE/Events/InstructionSentenceFormatter.cpp

@@ -4,7 +4,6 @@
  * reserved. This project is released under the MIT License.
  */
 
-#if defined(GD_IDE_ONLY)
 #include "GDCore/IDE/Events/InstructionSentenceFormatter.h"
 #include <algorithm>
 #include <iostream>
@@ -90,6 +89,19 @@ InstructionSentenceFormatter::GetAsFormattedText(
   return formattedStr;
 }
 
-}  // namespace gd
+gd::String InstructionSentenceFormatter::GetFullText(
+    const gd::Instruction &instr, const gd::InstructionMetadata &metadata)
+{
+  const std::vector<std::pair<gd::String, gd::TextFormatting> > formattedText =
+      GetAsFormattedText(instr, metadata);
 
-#endif
+  gd::String completeSentence = "";
+
+  for (std::size_t id = 0; id < formattedText.size(); ++id) {
+    completeSentence += formattedText.at(id).first;
+  }
+
+  return completeSentence;
+}
+
+}  // namespace gd

Core/GDCore/IDE/Events/InstructionSentenceFormatter.h

@@ -4,7 +4,6 @@
  * reserved. This project is released under the MIT License.
  */
 
-#if defined(GD_IDE_ONLY)
 #ifndef TRANSLATEACTION_H
 #define TRANSLATEACTION_H
 #include <map>
@@ -39,6 +38,9 @@ class GD_CORE_API InstructionSentenceFormatter {
     return (static_cast<InstructionSentenceFormatter *>(_singleton));
   }
 
+  gd::String GetFullText(const gd::Instruction &instr,
+                         const gd::InstructionMetadata &metadata);
+
   static void DestroySingleton() {
     if (NULL != _singleton) {
       delete _singleton;
@@ -55,4 +57,3 @@ class GD_CORE_API InstructionSentenceFormatter {
 
 }  // namespace gd
 #endif  // TRANSLATEACTION_H
-#endif

Core/GDCore/IDE/Events/InstructionsParameterMover.cpp

@@ -19,12 +19,15 @@ bool InstructionsParameterMover::DoVisitInstruction(
     gd::Instruction& instruction, bool isCondition) {
   if (instruction.GetType() == instructionType) {
     std::vector<gd::Expression> updatedParameters = instruction.GetParameters();
-    if (oldIndex < updatedParameters.size() ||
+    if (oldIndex < updatedParameters.size()) {
-        newIndex < updatedParameters.size()) {
+      gd::Expression movedParameter = updatedParameters.at(oldIndex);
-      gd::Expression movedParameter = updatedParameters[oldIndex];
       updatedParameters.erase(updatedParameters.begin() + oldIndex);
-      updatedParameters.insert(updatedParameters.begin() + newIndex,
+      if (newIndex < updatedParameters.size()) {
-                               movedParameter);
+        updatedParameters.insert(updatedParameters.begin() + newIndex,
+                                movedParameter);
+      } else {
+        updatedParameters.push_back(movedParameter);
+      }
       instruction.SetParameters(updatedParameters);
     }
   }

Core/GDCore/IDE/EventsFunctionTools.cpp

@@ -4,16 +4,20 @@
  * reserved. This project is released under the MIT License.
  */
 #include "EventsFunctionTools.h"
+
 #include "GDCore/Events/Expression.h"
 #include "GDCore/Extensions/Metadata/ParameterMetadataTools.h"
+#include "GDCore/Project/EventsBasedBehavior.h"
 #include "GDCore/Project/EventsFunction.h"
 #include "GDCore/Project/Object.h"
 #include "GDCore/Project/ObjectsContainer.h"
 #include "GDCore/Project/Project.h"
 #include "GDCore/String.h"
+#include "GDCore/Tools/Log.h"
 
 namespace gd {
-void EventsFunctionTools::EventsFunctionToObjectsContainer(
+
+void EventsFunctionTools::FreeEventsFunctionToObjectsContainer(
     gd::Project& project,
     const gd::EventsFunction& eventsFunction,
     gd::ObjectsContainer& outputGlobalObjectsContainer,
@@ -31,4 +35,41 @@ void EventsFunctionTools::EventsFunctionToObjectsContainer(
   outputObjectsContainer.GetObjectGroups() = eventsFunction.GetObjectGroups();
 }
 
+void EventsFunctionTools::BehaviorEventsFunctionToObjectsContainer(
+    gd::Project& project,
+    const gd::EventsBasedBehavior& eventsBasedBehavior,
+    const gd::EventsFunction& eventsFunction,
+    gd::ObjectsContainer& outputGlobalObjectsContainer,
+    gd::ObjectsContainer& outputObjectsContainer) {
+  // The context is build the same way as free function...
+  FreeEventsFunctionToObjectsContainer(project,
+                                       eventsFunction,
+                                       outputGlobalObjectsContainer,
+                                       outputObjectsContainer);
+
+  // ...and has an "Object" by convention...
+  if (!outputObjectsContainer.HasObjectNamed("Object")) {
+    gd::LogWarning("No \"Object\" in a function of an events based behavior: " +
+                   eventsFunction.GetName() +
+                   ". This means this function is likely misconfigured (check "
+                   "its parameters).");
+    return;
+  }
+
+  // ...with behaviors from properties.
+  gd::Object& thisObject = outputObjectsContainer.GetObject("Object");
+  for (size_t i = 0;
+       i < eventsBasedBehavior.GetPropertyDescriptors().GetCount();
+       i++) {
+    const NamedPropertyDescriptor& propertyDescriptor =
+        eventsBasedBehavior.GetPropertyDescriptors().Get(i);
+    const std::vector<gd::String>& extraInfo =
+        propertyDescriptor.GetExtraInfo();
+    if (propertyDescriptor.GetType() == "Behavior" && extraInfo.size() > 0) {
+      gd::String behaviorName = propertyDescriptor.GetName();
+      thisObject.AddNewBehavior(project, extraInfo.at(0), behaviorName);
+    }
+  }
+}
+
 }  // namespace gd

Core/GDCore/IDE/EventsFunctionTools.h

@@ -13,6 +13,7 @@ class Project;
 class ObjectsContainer;
 class ParameterMetadata;
 class EventsFunction;
+class EventsBasedBehavior;
 class Expression;
 }  // namespace gd
 
@@ -23,18 +24,33 @@ namespace gd {
 class GD_CORE_API EventsFunctionTools {
  public:
   /**
-   * \brief Given an events function, initialize the given objects container
+   * \brief Given a free events function, initialize the given objects container
    * with objects described in the events function parameters and in
    * the events function groups.
    *
    * This is useful to create the "context" of a function, before code
    * generation for example.
    */
-  static void EventsFunctionToObjectsContainer(
+  static void FreeEventsFunctionToObjectsContainer(
       gd::Project& project,
       const gd::EventsFunction& eventsFunction,
       gd::ObjectsContainer& outputGlobalObjectsContainer,
       gd::ObjectsContainer& outputObjectsContainer);
+  /**
+   * \brief Given a behavior events function, initialize the given objects container
+   * with objects described in the events function parameters, in
+   * the events function groups and in the behavior properties (for additional
+   * required behaviors on the object).
+   *
+   * This is useful to create the "context" of a function, before code
+   * generation for example.
+   */
+  static void BehaviorEventsFunctionToObjectsContainer(
+      gd::Project& project,
+      const gd::EventsBasedBehavior& eventsBasedBehavior,
+      const gd::EventsFunction& eventsFunction,
+      gd::ObjectsContainer& outputGlobalObjectsContainer,
+      gd::ObjectsContainer& outputObjectsContainer);
 };
 }  // namespace gd
 

Core/GDCore/IDE/PlatformLoader.cpp

@@ -27,50 +27,6 @@ namespace gd {
 
 PlatformLoader::PlatformLoader() {}
 
-void PlatformLoader::LoadAllPlatformsInManager(gd::String dir) {
-  {
-#if defined(WINDOWS)
-    std::shared_ptr<gd::Platform> platform = LoadPlatformInManager("GDCpp.dll");
-#elif defined(LINUX)
-    std::shared_ptr<gd::Platform> platform =
-        LoadPlatformInManager("libGDCpp.so");
-#elif defined(MACOS)
-    std::shared_ptr<gd::Platform> platform =
-        LoadPlatformInManager("libGDCpp.dylib");
-#else
-#warning Add the appropriate filename here for the C++ Platform!
-    std::shared_ptr<gd::Platform> platform;
-#endif
-    if (platform)
-      gd::ExtensionsLoader::LoadAllExtensions("./CppPlatform/Extensions/",
-                                              *platform);
-  }
-
-  {
-#if defined(WINDOWS)
-    std::shared_ptr<gd::Platform> platform =
-        LoadPlatformInManager("./JsPlatform/GDJS.dll");
-#elif defined(LINUX)
-    std::shared_ptr<gd::Platform> platform =
-        LoadPlatformInManager("./JsPlatform/libGDJS.so");
-#elif defined(MACOS)
-    std::shared_ptr<gd::Platform> platform =
-        LoadPlatformInManager("./JsPlatform/libGDJS.dylib");
-#else
-#warning Add the appropriate filename here for the Js Platform!
-    std::shared_ptr<gd::Platform> platform;
-#endif
-    if (platform)
-      gd::ExtensionsLoader::LoadAllExtensions("./JsPlatform/Extensions/",
-                                              *platform);
-    if (platform)
-      gd::ExtensionsLoader::LoadAllExtensions(
-          "./CppPlatform/Extensions/", *platform, true);
-  }
-
-  gd::ExtensionsLoader::ExtensionsLoadingDone("./CppPlatform/Extensions/");
-}
-
 std::shared_ptr<gd::Platform> PlatformLoader::LoadPlatformInManager(
     gd::String fullpath) {
   std::cout << "Loading platform " << fullpath << "..." << std::endl;

Core/GDCore/IDE/PlatformLoader.h

@@ -30,15 +30,6 @@ passing
  */
 class GD_CORE_API PlatformLoader {
  public:
-  /**
-   * Load all the platforms available in a directory.
-   *
-   * \param dir The directory where platforms must be searched for.
-   *
-   * \todo For now, only GDCpp.dll and GDJS.dll are loaded.
-   */
-  static void LoadAllPlatformsInManager(gd::String dir);
-
   /**
    * Load a specific platform.
    *

Core/GDCore/IDE/Project/ArbitraryResourceWorker.cpp

@@ -13,8 +13,11 @@
 #include "GDCore/Events/Event.h"
 #include "GDCore/Events/EventsList.h"
 #include "GDCore/Extensions/Metadata/InstructionMetadata.h"
+#include "GDCore/Extensions/Metadata/MetadataProvider.h"
+#include "GDCore/Extensions/Metadata/ParameterMetadataTools.h"
 #include "GDCore/Extensions/Platform.h"
 #include "GDCore/Extensions/PlatformExtension.h"
+#include "GDCore/IDE/Events/ArbitraryEventsWorker.h"
 #include "GDCore/Project/Project.h"
 #include "GDCore/Project/ResourcesManager.h"
 
@@ -23,8 +26,23 @@ using namespace std;
 namespace gd {
 
 void ArbitraryResourceWorker::ExposeImage(gd::String& imageName){
-    // Nothing to do, the image is a reference to a resource that
+    // Nothing to do by default - each child class can define here the action to
-    // is already exposed.
+    // do.
+};
+
+void ArbitraryResourceWorker::ExposeJson(gd::String& jsonName){
+    // Nothing to do by default - each child class can define here the action to
+    // do.
+};
+
+void ArbitraryResourceWorker::ExposeVideo(gd::String& videoName){
+    // Nothing to do by default - each child class can define here the action to
+    // do.
+};
+
+void ArbitraryResourceWorker::ExposeBitmapFont(gd::String& bitmapFontName){
+    // Nothing to do by default - each child class can define here the action to
+    // do.
 };
 
 void ArbitraryResourceWorker::ExposeAudio(gd::String& audioName) {
@@ -33,12 +51,14 @@ void ArbitraryResourceWorker::ExposeAudio(gd::String& audioName) {
 
     if (resources->HasResource(audioName) &&
         resources->GetResource(audioName).GetKind() == "audio") {
-      // Nothing to do, the audio is a reference to a resource that
+      // Nothing to do, the audio is a reference to a proper resource.
-      // is already exposed.
       return;
     }
   }
 
+  // For compatibility with older projects (where events were refering to files
+  // directly), we consider that this resource name is a filename, and so expose
+  // it as a file.
   ExposeFile(audioName);
 };
 
@@ -48,30 +68,17 @@ void ArbitraryResourceWorker::ExposeFont(gd::String& fontName) {
 
     if (resources->HasResource(fontName) &&
         resources->GetResource(fontName).GetKind() == "font") {
-      // Nothing to do, the font is a reference to a resource that
+      // Nothing to do, the font is a reference to a proper resource.
-      // is already exposed.
       return;
     }
   }
 
+  // For compatibility with older projects (where events were refering to files
+  // directly), we consider that this resource name is a filename, and so expose
+  // it as a file.
   ExposeFile(fontName);
 };
 
-void ArbitraryResourceWorker::ExposeBitmapFont(gd::String& bitmapFontName) {
-  for (auto resources : GetResources()) {
-    if (!resources) continue;
-
-    if (resources->HasResource(bitmapFontName) &&
-        resources->GetResource(bitmapFontName).GetKind() == "bitmapFont") {
-      // Nothing to do, the font is a reference to a resource that
-      // is already exposed.
-      return;
-    }
-  }
-
-  ExposeFile(bitmapFontName);
-};
-
 void ArbitraryResourceWorker::ExposeResources(
     gd::ResourcesManager* resourcesManager) {
   if (!resourcesManager) return;
@@ -95,101 +102,67 @@ void ArbitraryResourceWorker::ExposeResource(gd::Resource& resource) {
 
 ArbitraryResourceWorker::~ArbitraryResourceWorker() {}
 
+/**
+ * Launch the specified resource worker on every resource referenced in the
+ * events.
+ */
+class ResourceWorkerInEventsWorker : public ArbitraryEventsWorker {
+ public:
+  ResourceWorkerInEventsWorker(const gd::Project& project_,
+                               gd::ArbitraryResourceWorker& worker_)
+      : project(project_), worker(worker_){};
+  virtual ~ResourceWorkerInEventsWorker() {};
+
+ private:
+  bool DoVisitInstruction(gd::Instruction& instruction, bool isCondition) {
+    const auto& platform = project.GetCurrentPlatform();
+    const auto& metadata = isCondition
+                               ? gd::MetadataProvider::GetConditionMetadata(
+                                     platform, instruction.GetType())
+                               : gd::MetadataProvider::GetActionMetadata(
+                                     platform, instruction.GetType());
+
+    gd::ParameterMetadataTools::IterateOverParametersWithIndex(
+        instruction.GetParameters(),
+        metadata.GetParameters(),
+        [this, &instruction](const gd::ParameterMetadata& parameterMetadata,
+                             const gd::String& parameterValue,
+                             size_t parameterIndex,
+                             const gd::String& lastObjectName) {
+          if (parameterMetadata.GetType() ==
+              "police") {  // Should be renamed fontResource
+            gd::String updatedParameterValue = parameterValue;
+            worker.ExposeFont(updatedParameterValue);
+            instruction.SetParameter(parameterIndex, updatedParameterValue);
+          } else if (parameterMetadata.GetType() == "soundfile" ||
+                     parameterMetadata.GetType() ==
+                         "musicfile") {  // Should be renamed audioResource
+            gd::String updatedParameterValue = parameterValue;
+            worker.ExposeAudio(updatedParameterValue);
+            instruction.SetParameter(parameterIndex, updatedParameterValue);
+          } else if (parameterMetadata.GetType() == "bitmapFontResource") {
+            gd::String updatedParameterValue = parameterValue;
+            worker.ExposeBitmapFont(updatedParameterValue);
+            instruction.SetParameter(parameterIndex, updatedParameterValue);
+          } else if (parameterMetadata.GetType() == "imageResource") {
+            gd::String updatedParameterValue = parameterValue;
+            worker.ExposeImage(updatedParameterValue);
+            instruction.SetParameter(parameterIndex, updatedParameterValue);
+          }
+        });
+
+    return false;
+  };
+
+  const gd::Project& project;
+  gd::ArbitraryResourceWorker& worker;
+};
+
 void LaunchResourceWorkerOnEvents(const gd::Project& project,
                                   gd::EventsList& events,
                                   gd::ArbitraryResourceWorker& worker) {
-  // Get all extensions used
+  ResourceWorkerInEventsWorker eventsWorker(project, worker);
-  auto allGameExtensions =
+  eventsWorker.Launch(events);
-      project.GetCurrentPlatform().GetAllPlatformExtensions();
-
-  for (std::size_t j = 0; j < events.size(); j++) {
-    vector<gd::InstructionsList*> allActionsVectors =
-        events[j].GetAllActionsVectors();
-    for (std::size_t i = 0; i < allActionsVectors.size(); ++i) {
-      for (std::size_t k = 0; k < allActionsVectors[i]->size(); k++) {
-        gd::String type = allActionsVectors[i]->Get(k).GetType();
-        for (std::size_t e = 0; e < allGameExtensions.size(); ++e) {
-          bool extensionHasAction = false;
-
-          const std::map<gd::String, gd::InstructionMetadata>& allActions =
-              allGameExtensions[e]->GetAllActions();
-          if (allActions.find(type) != allActions.end())
-            extensionHasAction = true;
-
-          const vector<gd::String>& objects =
-              allGameExtensions[e]->GetExtensionObjectsTypes();
-          for (std::size_t o = 0; o < objects.size(); ++o) {
-            const std::map<gd::String, gd::InstructionMetadata>&
-                allObjectsActions =
-                    allGameExtensions[e]->GetAllActionsForObject(objects[o]);
-            if (allObjectsActions.find(type) != allObjectsActions.end())
-              extensionHasAction = true;
-          }
-
-          const vector<gd::String>& autos =
-              allGameExtensions[e]->GetBehaviorsTypes();
-          for (std::size_t a = 0; a < autos.size(); ++a) {
-            const std::map<gd::String, gd::InstructionMetadata>&
-                allAutosActions =
-                    allGameExtensions[e]->GetAllActionsForBehavior(autos[a]);
-            if (allAutosActions.find(type) != allAutosActions.end())
-              extensionHasAction = true;
-          }
-
-          if (extensionHasAction) {
-            allGameExtensions[e]->ExposeActionsResources(
-                allActionsVectors[i]->Get(k), worker);
-            break;
-          }
-        }
-      }
-    }
-
-    vector<gd::InstructionsList*> allConditionsVector =
-        events[j].GetAllConditionsVectors();
-    for (std::size_t i = 0; i < allConditionsVector.size(); ++i) {
-      for (std::size_t k = 0; k < allConditionsVector[i]->size(); k++) {
-        gd::String type = allConditionsVector[i]->Get(k).GetType();
-        for (std::size_t e = 0; e < allGameExtensions.size(); ++e) {
-          bool extensionHasCondition = false;
-
-          const std::map<gd::String, gd::InstructionMetadata>& allConditions =
-              allGameExtensions[e]->GetAllConditions();
-          if (allConditions.find(type) != allConditions.end())
-            extensionHasCondition = true;
-
-          const vector<gd::String>& objects =
-              allGameExtensions[e]->GetExtensionObjectsTypes();
-          for (std::size_t j = 0; j < objects.size(); ++j) {
-            const std::map<gd::String, gd::InstructionMetadata>&
-                allObjectsConditions =
-                    allGameExtensions[e]->GetAllConditionsForObject(objects[j]);
-            if (allObjectsConditions.find(type) != allObjectsConditions.end())
-              extensionHasCondition = true;
-          }
-
-          const vector<gd::String>& autos =
-              allGameExtensions[e]->GetBehaviorsTypes();
-          for (std::size_t j = 0; j < autos.size(); ++j) {
-            const std::map<gd::String, gd::InstructionMetadata>&
-                allAutosConditions =
-                    allGameExtensions[e]->GetAllConditionsForBehavior(autos[j]);
-            if (allAutosConditions.find(type) != allAutosConditions.end())
-              extensionHasCondition = true;
-          }
-
-          if (extensionHasCondition)
-            allGameExtensions[e]->ExposeConditionsResources(
-                allConditionsVector[i]->Get(k), worker);
-        }
-      }
-    }
-
-    if (events[j].CanHaveSubEvents())
-      LaunchResourceWorkerOnEvents(project, events[j].GetSubEvents(), worker);
-  }
-
-  return;
 }
 
 }  // namespace gd

Core/GDCore/IDE/Project/ArbitraryResourceWorker.h

@@ -60,19 +60,28 @@ class GD_CORE_API ArbitraryResourceWorker {
 
   /**
    * \brief Expose an audio, which is either a reference to an "audio" resource,
-   * or a filename if no resource with this name exists.
+   * or a filename if no resource with this name exists (for backward compatibility).
    */
   virtual void ExposeAudio(gd::String &audioName);
 
   /**
    * \brief Expose a font, which is either a reference to a "font" resource,
-   * or a filename if no resource with this name exists.
+   * or a filename if no resource with this name exists (for backward compatibility).
    */
   virtual void ExposeFont(gd::String &fontName);
 
   /**
-   * \brief Expose a bitmap font, which is either a reference to a "bitmapFont" resource,
+   * \brief Expose a JSON, which is always a reference to a "json" resource.
-   * or a filename if no resource with this name exists.
+   */
+  virtual void ExposeJson(gd::String &jsonName);
+
+  /**
+   * \brief Expose a video, which is always a reference to a "video" resource.
+   */
+  virtual void ExposeVideo(gd::String &videoName);
+
+  /**
+   * \brief Expose a bitmap font, which is always a reference to a "bitmapFont" resource.
    */
   virtual void ExposeBitmapFont(gd::String &bitmapFontName);
 

Core/GDCore/IDE/Project/ProjectResourcesAdder.cpp

@@ -14,25 +14,6 @@ using namespace std;
 
 namespace gd {
 
-bool ProjectResourcesAdder::AddAllMissing(gd::Project& project,
-                                          const gd::String& resourceType) {
-  // Search for resources used in the project
-  gd::ResourcesInUseHelper resourcesInUse;
-  project.ExposeResources(resourcesInUse);
-
-  ResourcesManager& resourcesManager = project.GetResourcesManager();
-  for (auto& resourceName : resourcesInUse.GetAll(resourceType)) {
-    if (!resourcesManager.HasResource(resourceName)) {
-      std::cout << "Adding missing resource \"" << resourceName
-                << "\"to the project." << std::endl;
-      resourcesManager.AddResource(
-          resourceName, /*filename=*/resourceName, resourceType);
-    }
-  }
-
-  return true;
-}
-
 std::vector<gd::String> ProjectResourcesAdder::GetAllUseless(
     gd::Project& project, const gd::String& resourceType) {
   std::vector<gd::String> unusedResources;
@@ -42,15 +23,13 @@ std::vector<gd::String> ProjectResourcesAdder::GetAllUseless(
   std::set<gd::String>& usedResources = resourcesInUse.GetAll(resourceType);
 
   // Search all resources not used
-  std::vector<gd::String> resources =
+  const std::vector<std::shared_ptr<Resource>>& resources =
-      project.GetResourcesManager().GetAllResourceNames();
+      project.GetResourcesManager().GetAllResources();
   for (std::size_t i = 0; i < resources.size(); i++) {
-    if (project.GetResourcesManager().GetResource(resources[i]).GetKind() !=
+    if (resources[i]->GetKind() != resourceType) continue;
-        resourceType)
-      continue;
 
-    if (usedResources.find(resources[i]) == usedResources.end())
+    if (usedResources.find(resources[i]->GetName()) == usedResources.end())
-      unusedResources.push_back(resources[i]);
+      unusedResources.push_back(resources[i]->GetName());
   }
 
   return unusedResources;

Core/GDCore/IDE/Project/ProjectResourcesAdder.h

@@ -20,17 +20,6 @@ namespace gd {
  */
 class GD_CORE_API ProjectResourcesAdder {
  public:
-  /**
-   * \brief Update the project so that all missing resources are added, with an
-   * filename that is equal to the missing resource name.
-   *
-   * \param project The project to be updated.
-   * \param resourceType The type of the resource the be searched
-   *
-   * \return true if no error happened
-   */
-  static bool AddAllMissing(gd::Project& project, const gd::String & resourceType);
-
   /**
    * \brief Find all resources of the specified kind that are
    * not used by the project.

Core/GDCore/IDE/Project/ResourcesInUseHelper.h

@@ -10,6 +10,7 @@
 
 #include <set>
 #include <vector>
+
 #include "GDCore/IDE/Project/ArbitraryResourceWorker.h"
 #include "GDCore/String.h"
 
@@ -36,17 +37,20 @@ class ResourcesInUseHelper : public gd::ArbitraryResourceWorker {
   virtual ~ResourcesInUseHelper(){};
 
   std::set<gd::String>& GetAllImages() { return GetAll("image"); };
-  std::set<gd::String>& GetAllFonts() { return GetAll("font"); };
   std::set<gd::String>& GetAllAudios() { return GetAll("audio"); };
+  std::set<gd::String>& GetAllFonts() { return GetAll("font"); };
+  std::set<gd::String>& GetAllJsons() { return GetAll("json"); };
+  std::set<gd::String>& GetAllVideos() { return GetAll("video"); };
   std::set<gd::String>& GetAllBitmapFonts() { return GetAll("bitmapFont"); };
   std::set<gd::String>& GetAll(const gd::String& resourceType) {
-    return resourceType == "image"
+    if (resourceType == "image") return allImages;
-               ? allImages
+    if (resourceType == "audio") return allAudios;
-               : (resourceType == "audio"
+    if (resourceType == "font") return allFonts;
-                      ? allAudios
+    if (resourceType == "json") return allJsons;
-                      : (resourceType == "font")
+    if (resourceType == "video") return allVideos;
-                            ? allFonts
+    if (resourceType == "bitmapFont") return allBitmapFonts;
-                            : (resourceType == "bitmapFont") ? allBitmapFonts : emptyResources);
+
+    return emptyResources;
   };
 
   virtual void ExposeFile(gd::String& resource) override{
@@ -61,6 +65,12 @@ class ResourcesInUseHelper : public gd::ArbitraryResourceWorker {
   virtual void ExposeFont(gd::String& fontResourceName) override {
     allFonts.insert(fontResourceName);
   };
+  virtual void ExposeJson(gd::String& jsonResourceName) override {
+    allJsons.insert(jsonResourceName);
+  };
+  virtual void ExposeVideo(gd::String& videoResourceName) override {
+    allVideos.insert(videoResourceName);
+  };
   virtual void ExposeBitmapFont(gd::String& bitmapFontResourceName) override {
     allBitmapFonts.insert(bitmapFontResourceName);
   };
@@ -69,6 +79,8 @@ class ResourcesInUseHelper : public gd::ArbitraryResourceWorker {
   std::set<gd::String> allImages;
   std::set<gd::String> allAudios;
   std::set<gd::String> allFonts;
+  std::set<gd::String> allJsons;
+  std::set<gd::String> allVideos;
   std::set<gd::String> allBitmapFonts;
   std::set<gd::String> emptyResources;
 };

Core/GDCore/IDE/Project/ResourcesMergingHelper.cpp

@@ -22,7 +22,7 @@ void ResourcesMergingHelper::ExposeFile(gd::String& resourceFilename) {
   resourceFullFilename = gd::AbstractFileSystem::NormalizeSeparator(
       resourceFullFilename);  // Protect against \ on Linux.
 
-  // In the case of absolute filnames that we don't want to preserve, or
+  // In the case of absolute filenames that we don't want to preserve, or
   // in the case of copying files without preserving relative folders, the new
   // names will be generated from the filename alone (with collision protection).
   auto stripToFilenameOnly = [&]() {

Core/GDCore/IDE/Project/ResourcesMergingHelper.h

@@ -71,7 +71,7 @@ class GD_CORE_API ResourcesMergingHelper : public ArbitraryResourceWorker {
    * Resources merging helper collects all resources filenames and update these
    * filenames.
    */
-  virtual void ExposeFile(gd::String& resource);
+  virtual void ExposeFile(gd::String& resource) override;
 
  protected:
   void SetNewFilename(gd::String oldFilename, gd::String newFilename);

Core/GDCore/IDE/Project/ResourcesRenamer.h

@@ -33,8 +33,9 @@ class ResourcesRenamer : public gd::ArbitraryResourceWorker {
       : gd::ArbitraryResourceWorker(), oldToNewNames(oldToNewNames_){};
   virtual ~ResourcesRenamer(){};
 
-  virtual void ExposeFile(gd::String& resourceName) override {
+  virtual void ExposeFile(gd::String& resourceFileName) override{
-    RenameIfNeeded(resourceName);
+      // Don't do anything: we're renaming resources, not the files they are
+      // pointing to.
   };
   virtual void ExposeImage(gd::String& imageResourceName) override {
     RenameIfNeeded(imageResourceName);
@@ -45,6 +46,15 @@ class ResourcesRenamer : public gd::ArbitraryResourceWorker {
   virtual void ExposeFont(gd::String& fontResourceName) override {
     RenameIfNeeded(fontResourceName);
   };
+  virtual void ExposeJson(gd::String& jsonResourceName) override {
+    RenameIfNeeded(jsonResourceName);
+  };
+  virtual void ExposeVideo(gd::String& videoResourceName) override {
+    RenameIfNeeded(videoResourceName);
+  };
+  virtual void ExposeBitmapFont(gd::String& bitmapFontName) override {
+    RenameIfNeeded(bitmapFontName);
+  };
 
  private:
   void RenameIfNeeded(gd::String& resourceName) {

Core/GDCore/IDE/UnfilledRequiredBehaviorPropertyProblem.cpp

@@ -0,0 +1,12 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2021 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+#include "UnfilledRequiredBehaviorPropertyProblem.h"
+
+namespace gd {
+
+UnfilledRequiredBehaviorPropertyProblem::~UnfilledRequiredBehaviorPropertyProblem(){};
+
+}  // namespace gd

Core/GDCore/IDE/UnfilledRequiredBehaviorPropertyProblem.h

@@ -0,0 +1,80 @@
+/*
+ * GDevelop Core
+ * Copyright 2008-2021 Florian Rival (Florian.Rival@gmail.com). All rights
+ * reserved. This project is released under the MIT License.
+ */
+
+#ifndef GDCORE_UNFILLEDREQUIREDBEHAVIORPROPERTYPROBLEM_H
+#define GDCORE_UNFILLEDREQUIREDBEHAVIORPROPERTYPROBLEM_H
+#include "GDCore/String.h"
+
+namespace gd {
+class Project;
+class Object;
+class BehaviorContent;
+}  // namespace gd
+
+namespace gd {
+
+/**
+ * \brief A problem when a required behavior property is not fill correctly.
+ */
+class GD_CORE_API UnfilledRequiredBehaviorPropertyProblem {
+ public:
+  UnfilledRequiredBehaviorPropertyProblem(
+      const gd::Project& sourceProject_,
+      gd::Object& sourceObject_,
+      gd::BehaviorContent& sourceBehaviorContent_,
+      const gd::String& sourcePropertyName_,
+      const gd::String& expectedBehaviorTypeName_)
+      : sourceProject(sourceProject_),
+      sourceObject(sourceObject_),
+      sourceBehaviorContent(sourceBehaviorContent_),
+      sourcePropertyName(sourcePropertyName_),
+      expectedBehaviorTypeName(expectedBehaviorTypeName_){};
+  virtual ~UnfilledRequiredBehaviorPropertyProblem();
+
+  /**
+   * \brief Return the project where the problem appears
+   */
+  virtual const gd::Project& GetSourceProject() const { return sourceProject; }
+
+  /**
+   * \brief Return the object where the problem appears.
+   */
+  virtual gd::Object& GetSourceObject() const { return sourceObject; }
+
+  /**
+   * \brief Return the behavior where the problem appears.
+   */
+  virtual gd::BehaviorContent& GetSourceBehaviorContent() const {
+    return sourceBehaviorContent;
+  }
+
+  /**
+   * \brief Return the property where the problem appears.
+   */
+  virtual const gd::String& GetSourcePropertyName() const {
+    return sourcePropertyName;
+  }
+
+  /**
+   * \brief Return the behavior type name that is expected for the required
+   * behavior property.
+   */
+  virtual const gd::String& GetExpectedBehaviorTypeName() const {
+    return expectedBehaviorTypeName;
+  }
+
+ private:
+  const gd::Project& sourceProject;
+  gd::Object& sourceObject;
+  gd::BehaviorContent& sourceBehaviorContent;
+  const gd::String sourcePropertyName;
+
+  const gd::String expectedBehaviorTypeName;
+};
+
+}  // namespace gd
+
+#endif  // GDCORE_UNFILLEDREQUIREDBEHAVIORPROPERTYPROBLEM_H

Core/GDCore/IDE/WholeProjectRefactorer.cpp

@@ -5,9 +5,12 @@
  */
 #include "WholeProjectRefactorer.h"
 
+#include "GDCore/Extensions/Metadata/BehaviorMetadata.h"
+#include "GDCore/Extensions/Metadata/MetadataProvider.h"
 #include "GDCore/Extensions/PlatformExtension.h"
 #include "GDCore/IDE/DependenciesAnalyzer.h"
 #include "GDCore/IDE/Events/ArbitraryEventsWorker.h"
+#include "GDCore/IDE/Events/EventsBehaviorRenamer.h"
 #include "GDCore/IDE/Events/EventsRefactorer.h"
 #include "GDCore/IDE/Events/ExpressionsParameterMover.h"
 #include "GDCore/IDE/Events/ExpressionsRenamer.h"
@@ -15,6 +18,9 @@
 #include "GDCore/IDE/Events/InstructionsTypeRenamer.h"
 #include "GDCore/IDE/EventsFunctionTools.h"
 #include "GDCore/IDE/Project/ArbitraryObjectsWorker.h"
+#include "GDCore/IDE/UnfilledRequiredBehaviorPropertyProblem.h"
+#include "GDCore/Project/Behavior.h"
+#include "GDCore/Project/BehaviorContent.h"
 #include "GDCore/Project/EventsBasedBehavior.h"
 #include "GDCore/Project/EventsFunctionsExtension.h"
 #include "GDCore/Project/ExternalEvents.h"
@@ -51,6 +57,10 @@ gd::String GetBehaviorFullType(const gd::String& extensionName,
 
 namespace gd {
 
+// By convention, the first parameter of an events based behavior method is
+// always called "Object".
+const gd::String WholeProjectRefactorer::behaviorObjectParameterName = "Object";
+
 void WholeProjectRefactorer::ExposeProjectEvents(
     gd::Project& project, gd::ArbitraryEventsWorker& worker) {
   // See also gd::Project::ExposeResources for a method that traverse the whole
@@ -115,7 +125,7 @@ void WholeProjectRefactorer::ExposeProjectEvents(
     for (auto&& eventsFunction : eventsFunctionsExtension.GetInternalVector()) {
       gd::ObjectsContainer globalObjectsAndGroups;
       gd::ObjectsContainer objectsAndGroups;
-      gd::EventsFunctionTools::EventsFunctionToObjectsContainer(
+      gd::EventsFunctionTools::FreeEventsFunctionToObjectsContainer(
           project, *eventsFunction, globalObjectsAndGroups, objectsAndGroups);
 
       worker.Launch(eventsFunction->GetEvents(),
@@ -127,22 +137,31 @@ void WholeProjectRefactorer::ExposeProjectEvents(
     for (auto&& eventsBasedBehavior :
          eventsFunctionsExtension.GetEventsBasedBehaviors()
              .GetInternalVector()) {
-      auto& behaviorEventsFunctions = eventsBasedBehavior->GetEventsFunctions();
+      ExposeEventsBasedBehaviorEvents(project, *eventsBasedBehavior, worker);
-      for (auto&& eventsFunction :
-           behaviorEventsFunctions.GetInternalVector()) {
-        gd::ObjectsContainer globalObjectsAndGroups;
-        gd::ObjectsContainer objectsAndGroups;
-        gd::EventsFunctionTools::EventsFunctionToObjectsContainer(
-            project, *eventsFunction, globalObjectsAndGroups, objectsAndGroups);
-
-        worker.Launch(eventsFunction->GetEvents(),
-                      globalObjectsAndGroups,
-                      objectsAndGroups);
-      }
     }
   }
 }
 
+void WholeProjectRefactorer::ExposeEventsBasedBehaviorEvents(
+    gd::Project& project,
+    const gd::EventsBasedBehavior& eventsBasedBehavior,
+    gd::ArbitraryEventsWorkerWithContext& worker) {
+  auto& behaviorEventsFunctions = eventsBasedBehavior.GetEventsFunctions();
+  for (auto&& eventsFunction : behaviorEventsFunctions.GetInternalVector()) {
+    gd::ObjectsContainer globalObjectsAndGroups;
+    gd::ObjectsContainer objectsAndGroups;
+    gd::EventsFunctionTools::BehaviorEventsFunctionToObjectsContainer(
+        project,
+        eventsBasedBehavior,
+        *eventsFunction,
+        globalObjectsAndGroups,
+        objectsAndGroups);
+
+    worker.Launch(
+        eventsFunction->GetEvents(), globalObjectsAndGroups, objectsAndGroups);
+  }
+}
+
 void WholeProjectRefactorer::ExposeProjectObjects(
     gd::Project& project, gd::ArbitraryObjectsWorker& worker) {
   worker.Launch(project);
@@ -192,7 +211,7 @@ void WholeProjectRefactorer::EnsureBehaviorEventsFunctionsProperParameters(
 
     parameters[0]
         .SetType("object")
-        .SetName("Object")
+        .SetName(behaviorObjectParameterName)
         .SetDescription("Object")
         .SetExtraInfo(eventsBasedBehavior.GetObjectType());
     parameters[1]
@@ -219,7 +238,7 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
       };
 
   auto renameBehaviorEventsFunction =
-      [&project, &eventsFunctionsExtension, &oldName, &newName](
+      [&project, &oldName, &newName](
           const gd::EventsBasedBehavior& eventsBasedBehavior,
           const gd::EventsFunction& eventsFunction) {
         if (eventsFunction.GetFunctionType() == gd::EventsFunction::Action ||
@@ -242,7 +261,7 @@ void WholeProjectRefactorer::RenameEventsFunctionsExtension(
       };
 
   auto renameBehaviorPropertyFunctions =
-      [&project, &eventsFunctionsExtension, &oldName, &newName](
+      [&project, &oldName, &newName](
           const gd::EventsBasedBehavior& eventsBasedBehavior,
           const gd::NamedPropertyDescriptor& property) {
         gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
@@ -470,7 +489,7 @@ void WholeProjectRefactorer::MoveBehaviorEventsFunctionParameter(
   }
 }
 
-void WholeProjectRefactorer::RenameBehaviorProperty(
+void WholeProjectRefactorer::RenameEventsBasedBehaviorProperty(
     gd::Project& project,
     const gd::EventsFunctionsExtension& eventsFunctionsExtension,
     const gd::EventsBasedBehavior& eventsBasedBehavior,
@@ -479,41 +498,294 @@ void WholeProjectRefactorer::RenameBehaviorProperty(
   auto& properties = eventsBasedBehavior.GetPropertyDescriptors();
   if (!properties.Has(oldPropertyName)) return;
 
-  // Order is important: we first rename the expressions then the instructions,
+  if (properties.Get(oldPropertyName).GetType() == "Behavior") {
-  // to avoid being unable to fetch the metadata (the types of parameters) of
+    // This is a property representing another behavior that must exist on the
-  // instructions after they are renamed.
+    // object.
-  gd::ExpressionsRenamer expressionRenamer =
-      gd::ExpressionsRenamer(project.GetCurrentPlatform());
-  expressionRenamer.SetReplacedBehaviorExpression(
-      GetBehaviorFullType(eventsFunctionsExtension.GetName(),
-                          eventsBasedBehavior.GetName()),
-      EventsBasedBehavior::GetPropertyExpressionName(oldPropertyName),
-      EventsBasedBehavior::GetPropertyExpressionName(newPropertyName));
-  ExposeProjectEvents(project, expressionRenamer);
 
-  gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
+    // This other "required behavior" uses the property name, that is about to
-      project,
+    // change, as its name.
-      GetBehaviorEventsFunctionFullType(
+    // So we must change all reference to this name in the events of the
-          eventsFunctionsExtension.GetName(),
+    // behavior functions.
-          eventsBasedBehavior.GetName(),
+    gd::EventsBehaviorRenamer behaviorRenamer(project.GetCurrentPlatform(),
-          EventsBasedBehavior::GetPropertyActionName(oldPropertyName)),
+                                              behaviorObjectParameterName,
-      GetBehaviorEventsFunctionFullType(
+                                              oldPropertyName,
-          eventsFunctionsExtension.GetName(),
+                                              newPropertyName);
-          eventsBasedBehavior.GetName(),
-          EventsBasedBehavior::GetPropertyActionName(newPropertyName)));
-  ExposeProjectEvents(project, actionRenamer);
 
-  gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
+    ExposeEventsBasedBehaviorEvents(
-      project,
+        project, eventsBasedBehavior, behaviorRenamer);
-      GetBehaviorEventsFunctionFullType(
+  } else {
-          eventsFunctionsExtension.GetName(),
+    // Properties that represent primitive values will be used through
-          eventsBasedBehavior.GetName(),
+    // their related actions/conditions/expressions. Rename these.
-          EventsBasedBehavior::GetPropertyConditionName(oldPropertyName)),
+
-      GetBehaviorEventsFunctionFullType(
+    // Order is important: we first rename the expressions then the
-          eventsFunctionsExtension.GetName(),
+    // instructions, to avoid being unable to fetch the metadata (the types of
-          eventsBasedBehavior.GetName(),
+    // parameters) of instructions after they are renamed.
-          EventsBasedBehavior::GetPropertyConditionName(newPropertyName)));
+    gd::ExpressionsRenamer expressionRenamer =
-  ExposeProjectEvents(project, conditionRenamer);
+        gd::ExpressionsRenamer(project.GetCurrentPlatform());
+    expressionRenamer.SetReplacedBehaviorExpression(
+        GetBehaviorFullType(eventsFunctionsExtension.GetName(),
+                            eventsBasedBehavior.GetName()),
+        EventsBasedBehavior::GetPropertyExpressionName(oldPropertyName),
+        EventsBasedBehavior::GetPropertyExpressionName(newPropertyName));
+    ExposeProjectEvents(project, expressionRenamer);
+
+    gd::InstructionsTypeRenamer actionRenamer = gd::InstructionsTypeRenamer(
+        project,
+        GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            eventsBasedBehavior.GetName(),
+            EventsBasedBehavior::GetPropertyActionName(oldPropertyName)),
+        GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            eventsBasedBehavior.GetName(),
+            EventsBasedBehavior::GetPropertyActionName(newPropertyName)));
+    ExposeProjectEvents(project, actionRenamer);
+
+    gd::InstructionsTypeRenamer conditionRenamer = gd::InstructionsTypeRenamer(
+        project,
+        GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            eventsBasedBehavior.GetName(),
+            EventsBasedBehavior::GetPropertyConditionName(oldPropertyName)),
+        GetBehaviorEventsFunctionFullType(
+            eventsFunctionsExtension.GetName(),
+            eventsBasedBehavior.GetName(),
+            EventsBasedBehavior::GetPropertyConditionName(newPropertyName)));
+    ExposeProjectEvents(project, conditionRenamer);
+  }
+}
+
+void WholeProjectRefactorer::AddBehaviorAndRequiredBehaviors(
+    gd::Project& project,
+    gd::Object& object,
+    const gd::String& behaviorType,
+    const gd::String& behaviorName) {
+  if (object.AddNewBehavior(project, behaviorType, behaviorName) == nullptr) {
+    // The behavior type/metadata can't be found.
+    return;
+  };
+
+  const gd::Platform& platform = project.GetCurrentPlatform();
+  const gd::BehaviorMetadata& behaviorMetadata =
+      MetadataProvider::GetBehaviorMetadata(platform, behaviorType);
+  if (MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
+    // Should not happen because the behavior was added successfully (so its
+    // metadata are valid) - but double check anyway and bail out if the
+    // behavior metadata are invalid.
+    return;
+  }
+
+  gd::Behavior& behavior = behaviorMetadata.Get();
+  gd::BehaviorContent& behaviorContent = object.GetBehavior(behaviorName);
+  for (auto const& keyValue :
+       behavior.GetProperties(behaviorContent.GetContent())) {
+    const gd::String& propertyName = keyValue.first;
+    const gd::PropertyDescriptor& property = keyValue.second;
+    if (property.GetType().LowerCase() == "behavior") {
+      const std::vector<gd::String>& extraInfo = property.GetExtraInfo();
+      if (extraInfo.size() == 0) {
+        // very unlikely
+        continue;
+      }
+      const gd::String& requiredBehaviorType = extraInfo.at(0);
+      const auto behaviorContents =
+          WholeProjectRefactorer::GetBehaviorsWithType(object,
+                                                       requiredBehaviorType);
+      const gd::String* defaultBehaviorName = nullptr;
+      if (behaviorContents.size() == 0) {
+        const gd::BehaviorMetadata& requiredBehaviorMetadata =
+            MetadataProvider::GetBehaviorMetadata(platform,
+                                                  requiredBehaviorType);
+        const gd::String& requiredBehaviorName =
+            requiredBehaviorMetadata.GetDefaultName();
+        WholeProjectRefactorer::AddBehaviorAndRequiredBehaviors(
+            project, object, requiredBehaviorType, requiredBehaviorName);
+        defaultBehaviorName = &requiredBehaviorName;
+      } else {
+        defaultBehaviorName = &behaviorContents.at(0);
+      }
+      behavior.UpdateProperty(
+          behaviorContent.GetContent(), propertyName, *defaultBehaviorName);
+    }
+  }
+}
+
+std::vector<gd::String> WholeProjectRefactorer::GetBehaviorsWithType(
+    const gd::Object& object, const gd::String& type) {
+  std::vector<gd::String> behaviors;
+  for (auto& behaviorName : object.GetAllBehaviorNames()) {
+    const gd::BehaviorContent& behaviorContent =
+        object.GetBehavior(behaviorName);
+    if (behaviorContent.GetTypeName() == type) {
+      behaviors.push_back(behaviorName);
+    }
+  }
+  return behaviors;
+}
+
+std::vector<gd::String> WholeProjectRefactorer::FindDependentBehaviorNames(
+    const gd::Project& project,
+    const gd::Object& object,
+    const gd::String& behaviorName) {
+  std::unordered_set<gd::String> dependentBehaviorNames;
+  WholeProjectRefactorer::FindDependentBehaviorNames(
+      project, object, behaviorName, dependentBehaviorNames);
+  std::vector<gd::String> results;
+  results.insert(results.end(),
+                 dependentBehaviorNames.begin(),
+                 dependentBehaviorNames.end());
+  return results;
+}
+
+void WholeProjectRefactorer::FindDependentBehaviorNames(
+    const gd::Project& project,
+    const gd::Object& object,
+    const gd::String& behaviorName,
+    std::unordered_set<gd::String>& dependentBehaviorNames) {
+  const gd::Platform& platform = project.GetCurrentPlatform();
+  for (auto const& objectBehaviorName : object.GetAllBehaviorNames()) {
+    const gd::BehaviorContent& behaviorContent =
+        object.GetBehavior(objectBehaviorName);
+    const auto& behaviorMetadata = MetadataProvider::GetBehaviorMetadata(
+        platform, behaviorContent.GetTypeName());
+    if (MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
+      // Ignore this behavior as it's unknown.
+      continue;
+    }
+
+    gd::Behavior& behavior = behaviorMetadata.Get();
+    for (auto const& keyValue :
+         behavior.GetProperties(behaviorContent.GetContent())) {
+      const gd::String& propertyName = keyValue.first;
+      const gd::PropertyDescriptor& property = keyValue.second;
+      if (property.GetType().LowerCase() == "behavior" &&
+          property.GetValue() == behaviorName &&
+          dependentBehaviorNames.find(objectBehaviorName) ==
+              dependentBehaviorNames.end()) {
+        dependentBehaviorNames.insert(objectBehaviorName);
+        WholeProjectRefactorer::FindDependentBehaviorNames(
+            project, object, objectBehaviorName, dependentBehaviorNames);
+      }
+    }
+  }
+};
+
+std::vector<gd::UnfilledRequiredBehaviorPropertyProblem>
+WholeProjectRefactorer::FindInvalidRequiredBehaviorProperties(
+    const gd::Project& project) {
+  std::vector<gd::UnfilledRequiredBehaviorPropertyProblem>
+      invalidRequiredBehaviorProperties;
+  auto findInvalidRequiredBehaviorPropertiesInObjects =
+      [&project, &invalidRequiredBehaviorProperties](
+          const std::vector<std::unique_ptr<gd::Object> >& objectsList) {
+        for (auto& object : objectsList) {
+          for (auto& behaviorContentKeyValuePair :
+               object->GetAllBehaviorContents()) {
+            gd::BehaviorContent& behaviorContent =
+                *behaviorContentKeyValuePair.second;
+
+            const auto& behaviorMetadata =
+                gd::MetadataProvider::GetBehaviorMetadata(
+                    project.GetCurrentPlatform(),
+                    behaviorContent.GetTypeName());
+            if (MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
+              std::cout << "Could not find metadata for behavior with type \""
+                        << behaviorContent.GetTypeName() << "\"" << std::endl;
+              continue;
+            }
+
+            const auto& behavior = behaviorMetadata.Get();
+
+            for (auto const& keyValue :
+                 behavior.GetProperties(behaviorContent.GetContent())) {
+              const gd::String& propertyName = keyValue.first;
+              const gd::PropertyDescriptor& property = keyValue.second;
+              if (property.GetType().LowerCase() != "behavior") {
+                continue;
+              }
+              const gd::String& requiredBehaviorName = property.GetValue();
+              const std::vector<gd::String>& extraInfo =
+                  property.GetExtraInfo();
+              if (extraInfo.size() == 0) {
+                // very unlikely
+                continue;
+              }
+              const gd::String& requiredBehaviorType = extraInfo.at(0);
+
+              if (requiredBehaviorName == "" ||
+                  !object->HasBehaviorNamed(requiredBehaviorName) ||
+                  object->GetBehavior(requiredBehaviorName).GetTypeName() !=
+                      requiredBehaviorType) {
+                auto problem = UnfilledRequiredBehaviorPropertyProblem(
+                    project,
+                    *object,
+                    behaviorContent,
+                    propertyName,
+                    requiredBehaviorType);
+                invalidRequiredBehaviorProperties.push_back(problem);
+              }
+            }
+          }
+        }
+      };
+
+  // Find in global objects
+  findInvalidRequiredBehaviorPropertiesInObjects(project.GetObjects());
+
+  // Find in layout objects.
+  for (std::size_t i = 0; i < project.GetLayoutsCount(); ++i) {
+    const gd::Layout& layout = project.GetLayout(i);
+    findInvalidRequiredBehaviorPropertiesInObjects(layout.GetObjects());
+  }
+  return invalidRequiredBehaviorProperties;
+}
+
+bool WholeProjectRefactorer::FixInvalidRequiredBehaviorProperties(
+    gd::Project& project) {
+  const auto& invalidRequiredBehaviorProblems =
+      FindInvalidRequiredBehaviorProperties(project);
+  for (const auto& problem : invalidRequiredBehaviorProblems) {
+    auto& object = problem.GetSourceObject();
+    auto suggestedBehaviorNames =
+        GetBehaviorsWithType(object, problem.GetExpectedBehaviorTypeName());
+    auto& behaviorContent = problem.GetSourceBehaviorContent();
+    auto& behaviorMetadata = MetadataProvider::GetBehaviorMetadata(
+        project.GetCurrentPlatform(), behaviorContent.GetTypeName());
+    if (MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
+      continue;
+    }
+
+    auto& behavior = behaviorMetadata.Get();
+    if (suggestedBehaviorNames.empty()) {
+      // No matching behavior on the object.
+      // Add required behaviors on the object.
+
+      auto& expectedBehaviorMetadata = MetadataProvider::GetBehaviorMetadata(
+          project.GetCurrentPlatform(), problem.GetExpectedBehaviorTypeName());
+      if (MetadataProvider::IsBadBehaviorMetadata(behaviorMetadata)) {
+        continue;
+      }
+
+      const gd::String& newBehaviorName =
+          expectedBehaviorMetadata.GetDefaultName();
+      AddBehaviorAndRequiredBehaviors(project,
+                                      object,
+                                      problem.GetExpectedBehaviorTypeName(),
+                                      newBehaviorName);
+      behavior.UpdateProperty(behaviorContent.GetContent(),
+                              problem.GetSourcePropertyName(),
+                              newBehaviorName);
+    } else {
+      // There is a matching behavior on the object use it by default.
+      behavior.UpdateProperty(
+          behaviorContent.GetContent(),
+          problem.GetSourcePropertyName(),
+          // It's unlikely the object has 2 behaviors of the same type.
+          suggestedBehaviorNames[0]);
+    }
+  }
+
+  return !invalidRequiredBehaviorProblems.empty();
 }
 
 void WholeProjectRefactorer::RenameEventsBasedBehavior(
@@ -533,7 +805,6 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
   auto renameBehaviorEventsFunction =
       [&project,
        &eventsFunctionsExtension,
-       &eventsBasedBehavior,
        &oldBehaviorName,
        &newBehaviorName](const gd::EventsFunction& eventsFunction) {
         if (eventsFunction.GetFunctionType() == gd::EventsFunction::Action ||
@@ -560,7 +831,6 @@ void WholeProjectRefactorer::RenameEventsBasedBehavior(
 
   auto renameBehaviorProperty = [&project,
                                  &eventsFunctionsExtension,
-                                 &eventsBasedBehavior,
                                  &oldBehaviorName,
                                  &newBehaviorName](
                                     const gd::NamedPropertyDescriptor&
@@ -678,6 +948,31 @@ void WholeProjectRefactorer::DoRenameBehavior(
         }
       };
 
+  // Rename behavior in required behavior properties
+  for (std::size_t e = 0; e < project.GetEventsFunctionsExtensionsCount();
+       e++) {
+    auto& eventsFunctionsExtension = project.GetEventsFunctionsExtension(e);
+
+    for (auto&& eventsBasedBehavior :
+         eventsFunctionsExtension.GetEventsBasedBehaviors()
+             .GetInternalVector()) {
+      for (size_t i = 0;
+           i < eventsBasedBehavior->GetPropertyDescriptors().GetCount();
+           i++) {
+        NamedPropertyDescriptor& propertyDescriptor =
+            eventsBasedBehavior->GetPropertyDescriptors().Get(i);
+        std::vector<gd::String>& extraInfo = propertyDescriptor.GetExtraInfo();
+        if (propertyDescriptor.GetType() == "Behavior" &&
+            extraInfo.size() > 0) {
+          const gd::String& requiredBehaviorType = extraInfo[0];
+          if (requiredBehaviorType == oldBehaviorType) {
+            extraInfo[0] = newBehaviorType;
+          }
+        }
+      }
+    }
+  }
+
   // Rename behavior in global objects
   renameBehaviorTypeInObjects(project.GetObjects());
 

Core/GDCore/IDE/WholeProjectRefactorer.h

@@ -6,10 +6,13 @@
 #ifndef GDCORE_WHOLEPROJECTREFACTORER_H
 #define GDCORE_WHOLEPROJECTREFACTORER_H
 #include <set>
+#include <unordered_set>
 #include <vector>
 namespace gd {
+class Platform;
 class Project;
 class Layout;
+class Object;
 class String;
 class EventsFunctionsExtension;
 class EventsFunction;
@@ -18,6 +21,10 @@ class EventsBasedBehavior;
 class ArbitraryEventsWorker;
 class ArbitraryObjectsWorker;
 class ArbitraryEventsWorkerWithContext;
+class Behavior;
+class BehaviorContent;
+class BehaviorMetadata;
+class UnfilledRequiredBehaviorPropertyProblem;
 }  // namespace gd
 
 namespace gd {
@@ -51,13 +58,24 @@ class GD_CORE_API WholeProjectRefactorer {
                                   gd::ArbitraryEventsWorkerWithContext& worker);
 
   /**
-   * \brief Call the specified worker on all ObjectContainers of the project (global,
+   * \brief Call the specified worker on all events of the events based behavior
-   * layouts...)
+   *
+   * This should be the preferred way to traverse all the events of an events
+   * based behavior
+   */
+  static void ExposeEventsBasedBehaviorEvents(
+      gd::Project& project,
+      const gd::EventsBasedBehavior& eventsBasedBehavior,
+      gd::ArbitraryEventsWorkerWithContext& worker);
+
+  /**
+   * \brief Call the specified worker on all ObjectContainers of the project
+   * (global, layouts...)
    *
    * This should be the preferred way to traverse all the objects of a project.
    */
-  static void ExposeProjectObjects(
+  static void ExposeProjectObjects(gd::Project& project,
-      gd::Project& project, gd::ArbitraryObjectsWorker& worker);
+                                   gd::ArbitraryObjectsWorker& worker);
 
   /**
    * \brief Refactor the project **before** an events function extension is
@@ -140,13 +158,52 @@ class GD_CORE_API WholeProjectRefactorer {
    * This is because the property is expected to have its old name for the
    * refactoring.
    */
-  static void RenameBehaviorProperty(
+  static void RenameEventsBasedBehaviorProperty(
       gd::Project& project,
       const gd::EventsFunctionsExtension& eventsFunctionsExtension,
       const gd::EventsBasedBehavior& eventsBasedBehavior,
       const gd::String& oldPropertyName,
       const gd::String& newPropertyName);
 
+  /**
+   * \brief Add a behavior to an object and add required behaviors if necessary
+   * to fill every behavior properties of the added behaviors.
+   */
+  static void AddBehaviorAndRequiredBehaviors(gd::Project& project,
+                                              gd::Object& object,
+                                              const gd::String& behaviorType,
+                                              const gd::String& behaviorName);
+
+  /**
+   * \brief Find every behavior of the object that needs the given behaviors
+   * directly or indirectly (because of "required behavior" properties).
+   */
+  static std::vector<gd::String> FindDependentBehaviorNames(
+      const gd::Project& project,
+      const gd::Object& object,
+      const gd::String& behaviorName);
+
+  /**
+   * \brief Find the names of the behaviors with the specified type on the object.
+   */
+  static std::vector<gd::String> GetBehaviorsWithType(const gd::Object& object,
+                                                      const gd::String& type);
+
+  /**
+   * \brief Find in the project objects having behaviors with "behavior" properties that
+   * don't have a valid value (i.e: pointing to a non existing behavior, or of a wrong type).
+   */
+  static std::vector<gd::UnfilledRequiredBehaviorPropertyProblem>
+  FindInvalidRequiredBehaviorProperties(const gd::Project& project);
+
+  /**
+   * \brief Fix in the project objects having behaviors with "behavior" properties that
+   * don't have a valid value (i.e: pointing to a non existing behavior, or of a wrong type),
+   * by setting a proper behavior, or adding missing behaviors to these objects.
+   */
+  static bool
+  FixInvalidRequiredBehaviorProperties(gd::Project& project);
+
   /**
    * \brief Refactor the project **before** a behavior is renamed.
    *
@@ -267,6 +324,14 @@ class GD_CORE_API WholeProjectRefactorer {
                                const gd::String& oldBehaviorType,
                                const gd::String& newBehaviorType);
 
+  static void FindDependentBehaviorNames(
+      const gd::Project& project,
+      const gd::Object& object,
+      const gd::String& behaviorName,
+      std::unordered_set<gd::String>& dependentBehaviorNames);
+
+  static const gd::String behaviorObjectParameterName;
+
   WholeProjectRefactorer(){};
 };
 

Core/GDCore/Project/EventsFunctionsExtension.cpp

@@ -36,6 +36,7 @@ void EventsFunctionsExtension::Init(const gd::EventsFunctionsExtension& other) {
   fullName = other.fullName;
   tags = other.tags;
   author = other.author;
+  authorIds = other.authorIds;
   previewIconUrl = other.previewIconUrl;
   iconUrl = other.iconUrl;
   helpPath = other.helpPath;
@@ -55,6 +56,11 @@ void EventsFunctionsExtension::SerializeTo(SerializerElement& element) const {
   for (const auto& tag : tags) {
     tagsElement.AddChild("").SetStringValue(tag);
   }
+  auto& authorIdsElement = element.AddChild("authorIds");
+  authorIdsElement.ConsiderAsArray();
+  for (const auto& authorId : authorIds) {
+    authorIdsElement.AddChild("").SetStringValue(authorId);
+  }
   element.SetAttribute("author", author);
   element.SetAttribute("previewIconUrl", previewIconUrl);
   element.SetAttribute("iconUrl", iconUrl);
@@ -99,6 +105,13 @@ void EventsFunctionsExtension::UnserializeFrom(
     }
   }
 
+  authorIds.clear();
+  auto& authorIdsElement = element.GetChild("authorIds");
+  authorIdsElement.ConsiderAsArray();
+  for (std::size_t i = 0; i < authorIdsElement.GetChildrenCount(); ++i) {
+    authorIds.push_back(authorIdsElement.GetChild(i).GetStringValue());
+  }
+
   dependencies.clear();
   const auto& dependenciesElement = element.GetChild("dependencies");
   dependenciesElement.ConsiderAsArray();