fraction-split/index.html at master · tedmx/fraction-split · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8"/>
    <title>Canvas tutorial</title>
    <style type="text/css">
      canvas {
        border: 1px solid black;
        transform-disabled: rotate3d(1, 1, .5, -22deg);
      }
    </style>
  </head>
  <body>


    <script src="matter.min.js"></script>
    <script type="text/javascript">

        function handleOrientation(event) {
          var x = event.beta;  // In degree in the range [-180,180]
          var y = event.gamma; // In degree

          engine.world.gravity.x = event.beta/180*gravityModifier;
          engine.world.gravity.y = event.gamma/180*gravityModifier;
        }

        window.addEventListener('deviceorientation', handleOrientation);

        //

        var gravityModifier = 1.3;

        function mouseListener(event){
         engine.world.gravity.y = (event.clientY/document.body.offsetHeight-0.5)*gravityModifier;
         engine.world.gravity.x = (event.clientX/document.body.offsetWidth-0.5)*gravityModifier;
        }

        document.body.addEventListener("mousemove", mouseListener);

        var canvasDimensions = {
              height: 500,
              width: 300
        }
              // module aliases
        var Engine = Matter.Engine,
            Render = Matter.Render,
            World = Matter.World,
            Bodies = Matter.Bodies;

        // create an engine
        var engine = Engine.create();

        // create a renderer
        var render = Render.create({
            element: document.body,
            engine: engine,
            options: {
              height: canvasDimensions.height,
              width: canvasDimensions.width
            }
        });

        function getTestTriangle(){
          return Bodies.polygon(Math.random()*150, Math.random()*150, 3, 5);
        }
        // create two boxes and a ground
        var boxA = Bodies.polygon(120, 80, 3, 50);
        var boxB = Bodies.rectangle(30, 50, 80, 80);
        var ground = Bodies.rectangle(0, canvasDimensions.height, canvasDimensions.width*2, 60, { isStatic: true });

        var borders = [];
        var borderThickness = 60;

        for (var x = 0; x < 2; x++) {
          for (var y = 0; y < 2; y++) {

            var dimensions = {
              x: ((x-y)/2+0.5)*canvasDimensions.width,
              y: (x+y)/2*canvasDimensions.height,
              width: (x-y)?borderThickness:canvasDimensions.width,
              height: (x-y)?canvasDimensions.height:borderThickness,
            }
            borders.push(
              Bodies.rectangle(
              dimensions.x,
              dimensions.y,
              dimensions.width,
              dimensions.height,
                { isStatic: true }
              )

            )
          };
        };


        // add all of the bodies to the world
        for (var i = 0; i < 9; i++) {
          World.add(engine.world, getTestTriangle());
        };
        World.add(engine.world, borders);

        // run the engine
        Engine.run(engine);

        // run the renderer
        Render.run(render);

    </script>
  </body>
</html>