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Explain the difference between built-in and external extensions in the documentation #8335

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D8H merged 2 commits into from
Feb 26, 2026
Merged

Explain the difference between built-in and external extensions in the documentation #8335

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861d02b
Explain the difference between built-in and external extension in the…
D8H Feb 26, 2026
b4e99cd
Add a depreciation tag on the Inventory class.
D8H Feb 26, 2026
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1 change: 1 addition & 0 deletions Extensions/Inventory/inventory.ts
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
namespace gdjs {
/**
* @category Other extensions > Inventory
* @deprecated use the extension from the extension store instead.
*/
export class Inventory {
_items: any = {};
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5 changes: 3 additions & 2 deletions newIDE/README-extensions.md
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# Writing extensions for GDevelop 5

GDevelop editor and games engines are designed so that all objects, behaviors, effects, actions, conditions and expressions
are provided by _extensions_. These extensions are composed of two parts:
The recommended way to [create extensions](https://wiki.gdevelop.io/gdevelop5/extensions/create/) is from GDevelop itself using the extension editor and JavaScript or events. This documentation is about implementing extensions directly in the codebase. This is usually done because of a limitation of the extension editor, for instance when dedicated editors are needed.

GDevelop editor and games engines are designed so that all objects, behaviors, effects, actions, conditions and expressions are provided by _extensions_. These extensions are composed of two parts:

- the _declaration_ of the extension, traditionally done in a file called `JsExtension.js`.
- the _implementation_ of the extension for the game engine (also called the "Runtime"), written in [TypeScript](https://www.typescriptlang.org/), containing the functions corresponding to the actions/conditions/expressions and the classes used for the objects or behaviors. The implementation is traditionally in files called `extensionnametools.ts`, `objectnameruntimeobject.ts` or `objectnameruntimebehavior.ts`.
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