Aseprite Plugin For Excalibur

This extension adds support for Aseprite SpriteSheets and Animations exported to json or the native .aseprite file format.

• Supports RGBA, Grayscale, and Indexed Sprites!
• Supports opacity on cells and layers!
• Supports tagged animations!

> npm install @excaliburjs/plugin-aseprite

1. Use the native .aseprite file format or using export json the aseprite cli or through the UI.

2. Load the Aseprite resource and voila ✨

• Use AsepriteResource.getAnimation(name) to retrieve animations by the name in aseprite
• Use AsepriteResource.getSpriteSheet() to get the equivalent Excalibur SpriteSheet

Example:

import { AsepriteResource } from "@excaliburjs/plugin-aseprite";

const game = new Engine({
    width: 600,
    height: 400,
    displayMode: DisplayMode.FitScreen
});

// Native
const asepriteSpriteSheet = new AsepriteResource('./beetle.aseprite');
// Or JSON export
// const asepriteSpriteSheet = new AsepriteResource('./beetle.json');

const loader = new Loader([asepriteSpriteSheet]);
game.start(loader).then(() => {

    const anim = asepriteSpriteSheet.getAnimation('Loop');
    const actor = new Actor({pos: vec(100, 100)});
    actor.graphics.use(anim);
    
    game.currentScene.add(actor);
});

Example exporting JSON in the UI

Contributing

• Built with webpack 5
• Uses webpack-dev-server

To start development server:

npm start

To watch:

npm run watch

To compile only:

npm run build

To run tests:

npx playwright install
npm test

To update snapshots

• Windows

  npx playwright test --update-snapshots

• Linux for CI

  docker run --rm --network host -v C:\projects\excalibur-aseprite:/work/ -w /work/ -it mcr.microsoft.com/playwright:v1.43.1-jammy /bin/bash
  npm install
  npx playwright test --update-snapshots

Currently unsupported in the Native format

PRs welcome to address!

• Layer blend modes
• Tilesets
• User Data
• External files
• Color Profiles