fabricat
Unofficial Canvas Renderer for Scratch 3.0
Last updated 2 months ago by adroitwhiz .
BSD-3-Clause · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install fabricat 
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fabricat

Canvas-based version of the Scratch 3.0 renderer

Build Status

Setup

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Fabricat canvas rendering demo</title>
    </head>

    <body>
        <canvas id="myStage"></canvas>
        <canvas id="myDebug"></canvas>
    </body>
</html>
var canvas = document.getElementById('myStage');
var debug = document.getElementById('myDebug');

// Instantiate the renderer
var renderer = new require('fabricat')(canvas);

// Connect to debug canvas
renderer.setDebugCanvas(debug);

// Start drawing
function drawStep() {
    renderer.draw();
    requestAnimationFrame(drawStep);
}
drawStep();

// Connect to worker (see "playground" example)
var worker = new Worker('worker.js');
renderer.connectWorker(worker);

Standalone Build

npm run build
<script src="/path/to/render.js"></script>
<script>
    var renderer = new window.RenderCanvasLocal();
    // do things
</script>

Testing

npm test

Credit

Most of this codebase was written by the Scratch Team for scratch-render, the official WebGL-based renderer for Scratch. I simply modified it to work via the 2D canvas drawing API.

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