PerformanceTests/Animometer/tests/bouncing-particles/resources/bouncing-canvas-particles.js

   1 BouncingCanvasParticle = Utilities.createSubclass(BouncingParticle,
   2     function(stage, shape)
   3     {
   4         BouncingParticle.call(this, stage);
   5         this.context = stage.context;
   6         this._shape = shape;
   7         this._clip = stage.clip;
   8     }, {
   9
  10     applyRotation: function()
  11     {
  12         if (this._shape == "circle")
  13             return;
  14
  15         this.context.translate(this.size.x / 2, this.size.y / 2);
  16         this.context.rotate(this.rotater.degree() * Math.PI / 180);
  17         this.context.translate(-this.size.x / 2, -this.size.y / 2);
  18     },
  19
  20     applyClipping: function()
  21     {
  22         var clipPoints = BouncingCanvasParticle.clips[this._clip];
  23         if (!clipPoints)
  24             return;
  25
  26         this.context.beginPath();
  27         clipPoints.forEach(function(point, index) {
  28             var point = this.size.multiply(point);
  29             if (!index)
  30                 this.context.moveTo(point.x, point.y);
  31             else
  32                 this.context.lineTo(point.x, point.y);
  33         }, this);
  34
  35         this.context.closePath();
  36         this.context.clip();
  37     },
  38
  39     _draw: function()
  40     {
  41         throw "Not implemented";
  42     },
  43
  44     animate: function(timeDelta)
  45     {
  46         BouncingParticle.prototype.animate.call(this, timeDelta);
  47         this.context.save();
  48             this.context.translate(this.position.x, this.position.y);
  49             this._draw();
  50         this.context.restore();
  51     }
  52 });
  53
  54 BouncingCanvasParticle.clips = {
  55     star: [
  56         new Point(0.50, 0.00),
  57         new Point(0.38, 0.38),
  58         new Point(0.00, 0.38),
  59         new Point(0.30, 0.60),
  60         new Point(0.18, 1.00),
  61         new Point(0.50, 0.75),
  62         new Point(0.82, 1.00),
  63         new Point(0.70, 0.60),
  64         new Point(1.00, 0.38),
  65         new Point(0.62, 0.38)
  66     ]
  67 };
  68
  69 BouncingCanvasParticlesStage = Utilities.createSubclass(BouncingParticlesStage,
  70     function()
  71     {
  72         BouncingParticlesStage.call(this);
  73     }, {
  74
  75     initialize: function(benchmark, options)
  76     {
  77         BouncingParticlesStage.prototype.initialize.call(this, benchmark, options);
  78         this.context = this.element.getContext("2d");
  79     },
  80
  81     animate: function(timeDelta)
  82     {
  83         this.context.clearRect(0, 0, this.size.x, this.size.y);
  84         this.particles.forEach(function(particle) {
  85             particle.animate(timeDelta);
  86         });
  87     }
  88 });