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<!DOCTYPE html>
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2011-02-16 18:35:10 -05:00
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>Example</title>
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2011-03-03 11:56:31 -05:00
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<script type="text/javascript" src="../../lib/bootstrap.js"></script>
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<script type="text/javascript" src="../../src/Paper.js"></script>
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<script type="text/javascript" src="../../src/tool/ToolEvent.js"></script>
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<script type="text/javascript" src="../../src/tool/ToolHandler.js"></script>
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<script type="text/javascript" src="../../src/tool/Tool.js"></script>
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<script type="text/javascript" src="../../src/basic/Point.js"></script>
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<script type="text/javascript" src="../../src/basic/Rectangle.js"></script>
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<script type="text/javascript" src="../../src/basic/Size.js"></script>
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<script type="text/javascript" src="../../src/basic/Matrix.js"></script>
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<script type="text/javascript" src="../../src/document/DocumentView.js"></script>
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<script type="text/javascript" src="../../src/document/Document.js"></script>
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<script type="text/javascript" src="../../src/document/Symbol.js"></script>
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<script type="text/javascript" src="../../src/item/Item.js"></script>
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<script type="text/javascript" src="../../src/item/PlacedSymbol.js"></script>
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<script type="text/javascript" src="../../src/item/Group.js"></script>
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<script type="text/javascript" src="../../src/item/Layer.js"></script>
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<script type="text/javascript" src="../../src/item/Raster.js"></script>
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<script type="text/javascript" src="../../src/item/PathStyle.js"></script>
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<script type="text/javascript" src="../../src/path/Segment.js"></script>
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<script type="text/javascript" src="../../src/path/PathItem.js"></script>
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<script type="text/javascript" src="../../src/path/Path.js"></script>
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<script type="text/javascript" src="../../src/path/CompoundPath.js"></script>
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<script type="text/javascript" src="../../src/path/Path.Constructors.js"></script>
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2011-02-19 11:56:15 -05:00
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<script type="text/javascript" src="../../src/color/Color.js"></script>
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<script type="text/javascript" src="../../src/color/RGBColor.js"></script>
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<script type="text/javascript" src="../../src/color/GrayColor.js"></script>
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<script type="text/javascript" src="../../src/color/GradientColor.js"></script>
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<script type="text/javascript" src="../../src/color/Gradient.js"></script>
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<script type="text/javascript" src="../../src/color/GradientStop.js"></script>
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<script>
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window.onload = function() {
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var canvas = document.getElementById('canvas');
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var doc = new Document(canvas);
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var balls = [];
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var circlePath = new Path.Circle([0, 0], 10);
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circlePath.fillColor = new GradientColor(null, [0, 0], [0, 12], [0, 2]);
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circlePath.fillColor.gradient.type = 'radial';
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var symbol = new Symbol(circlePath);
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var group = new Group();
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var Ball = Base.extend({
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initialize: function(point, vector) {
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if (!vector || vector.isZero()) {
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this.vector = Point.random().multiply(5);
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} else {
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this.vector = vector.multiply(1.5);
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}
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this.point = point;
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this.dampen = 0.4;
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this.gravity = 3;
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this.bounce = -0.6;
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this.radius = 50 * Math.random() + 10;
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this.item = new PlacedSymbol(symbol);
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this.item.position = point;
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this.item.scale(this.radius / 10);
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group.appendTop(this.item);
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},
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contrainPoint: function() {
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var x = this.point.x;
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var y = this.point.y;
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var radius = this.radius;
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this.point.x = Math.min(Math.max(radius, x), doc.size.width - radius);
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this.point.y = Math.min(Math.max(radius, y), doc.size.height - radius);
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},
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iterate: function() {
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this.vector.y += this.gravity;
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this.vector.x *= 0.99;
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var pre = this.point.add(this.vector);
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if (pre.x < this.radius || pre.x > doc.size.width - this.radius)
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this.vector.x *= -this.dampen;
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if (pre.y < this.radius || pre.y > doc.size.height - this.radius) {
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if (Math.abs(this.vector.x) < 3) {
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this.vector.x = Math.random() * 150 - 75;
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this.vector.y = Math.random() * 100 + 20;
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}
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this.vector.y *= this.bounce;
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}
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this.point = this.point.add(this.vector);
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this.contrainPoint();
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this.item.position = this.point;
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}
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});
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for (var i = 0; i < 10; i++) {
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var position = Point.random().multiply(doc.size);
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var vector = Point.random().subtract(0.5, 0).multiply(50, 100);
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var ball = new Ball(position, vector);
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balls.push(ball);
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}
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var lastDelta;
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tool = new Tool({
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onMouseDrag: function(event) {
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lastDelta = event.delta;
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},
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onMouseUp: function(event) {
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var ball = new Ball(event.point, lastDelta);
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balls.push(ball);
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lastDelta = null;
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}
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});
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setInterval(draw, 30);
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var boundPath = new Path.Rectangle([-10, -10], [-11, -11]);
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boundPath.strokeColor = 'red';
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boundPath.strokeWidth = 1;
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function draw() {
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for (var i = 0, l = balls.length; i < l; i++) {
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balls[i].iterate();
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}
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boundPath.bounds = group.bounds;
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doc.redraw();
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}
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}
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</script>
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</head>
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<body>
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<p>Click to add circles:</p>
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<canvas id='canvas' width=1024 height=768></canvas>
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</body>
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