Florian Rival
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- For advanced use cases where it's important to run events on each instance of an object with an ordering, the For Each can now have an ordering: an expression can be written and will be evaluated for each instance separately. The For Each will then execute for each instance in the order of the result of the expression. - It's possible to change the direction (ascending or descending) - It's also possible to give a limit (for example, 1 will allow to pick just the instance with the highest/lowest value for the expression). - Examples are provided in the UI for common use cases (maximum value of a variable, health points, ammo, distance to another object...)
GDevelop JavaScript Platform (HTML5 game engine)
GDevelop JavaScript Platform (GDJS) is the game engine for making HTML5/Javascript based games with GDevelop.
📚 Game developer, searching for the documentation? Go to the GDJS Runtime (game engine) documentation.
1) Installation 💻
To do changes in the game engine or create extensions, install the development version (click here to learn more).
2) Development 🤓
GDJS is composed of two parts:
- the JavaScript game engine (Runtime folder), called GDJS Runtime.
- the C++ part exposing GDJS to GDevelop IDE (GDJS folder), including the Exporter and classes doing transpilation from events to JavaScript, called GDJS Platform.
GDJS Runtime (game engine)
The game engine is in the Runtime folder. If you want to work on the engine directly, follow the GDevelop 5 README about the development of the game engine.
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To use the game engine, you can look into the GDJS Runtime (game engine) documentation.
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To run tests for the game engine, go to
GDJS/tests, runnpm installandnpm test. More information in the README for the tests. -
To launch type checking with TypeScript, run
npm installandnpm run check-typesinGDJSfolder.
Building GDJS Runtime
To build the GDJS Runtime, run npm run build in the GDJS folder.
Build Options:
- Production build (default):
npm run build- builds with minification enabled - Debug build:
npm run build -- --debug- builds without minification for easier debugging - Custom output path:
npm run build -- --out=/path/to/output- specify custom output directory
Examples:
# Standard production build
npm run build
# Debug build for development (no minification)
npm run build -- --debug
# Debug build with custom output path
npm run build -- --debug --out=./debug-build
GDJS Platform (exporters, code generation...)
Check the GDJS Platform documentation or the full GDevelop developers documentation.
3) How to contribute 😎
Any contribution is welcome! Whether you want to submit a bug report, a feature request or any pull request to add a feature, do not hesitate to get in touch.
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Follow the Development section of the README to set up GDevelop and start modifying either the editor or the game engine/extensions.
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To submit your changes, you have first to create a Fork on GitHub (use the Fork button on the top right), then create a Pull Request.
License
GDJS is distributed under the MIT license: see LICENSE.md for more information.