<!DOCTYPE HTML>
<html>
<head>
<title>proton.js-behaviour-RandomDirft1</title>
<meta name="viewport" id="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<meta charset="utf-8">
<style type="text/css">
body {
font-family: Monospace;
background-color: #f0f0f0;
margin: 0px;
overflow: hidden;
}
#testCanvas {
background: #000000;
}
</style>
</head>
<body>
<canvas id="testCanvas"></canvas>
<script src="../../lib/requestAnimationFrame.min.js"></script>
<script src="../../lib/stats.min.js"></script>
<script src="//localhost:3001/build/proton.web.js"></script>
<script>
var canvas;
var context;
var proton;
var renderer;
var emitter;
var stats;
main();
function main() {
initCanvas();
addStats();
createProton();
tick();
}
function initCanvas() {
canvas = document.getElementById("testCanvas");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
context = canvas.getContext('2d');
canvas.addEventListener('mousedown', mousedownHandler, false);
}
function addStats() {
stats = new Stats();
stats.setMode(2);
stats.domElement.style.position = 'absolute';
stats.domElement.style.left = '0px';
stats.domElement.style.top = '0px';
document.body.appendChild(stats.domElement);
}
function createProton() {
proton = new Proton;
emitter = new Proton.Emitter();
emitter.rate = new Proton.Rate(new Proton.Span(3, 6), new Proton.Span(.15, .3));
emitter.addInitialize(new Proton.Mass(1));
emitter.addInitialize(new Proton.Radius(10, 20));
emitter.addInitialize(new Proton.Life(1, 3));
emitter.addInitialize(new Proton.V(new Proton.Span(1, 3), new Proton.Span(-20, 20), 'polar'));
emitter.addBehaviour(new Proton.RandomDrift(30, 30, .05));
emitter.addBehaviour(new Proton.Scale(1, 0));
emitter.addBehaviour(new Proton.Color('#ffffff', '#ff0000'));
emitter.p.x = canvas.width / 2;
emitter.p.y = canvas.height / 2;
emitter.emit(15);
proton.addEmitter(emitter);
renderer = new Proton.CanvasRenderer(canvas);
renderer.setStroke('#ff0000');
renderer.onProtonUpdate = function () { };
proton.addRenderer(renderer);
window.onresize = function (e) {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
emitter.p.x = canvas.width / 2;
emitter.p.y = canvas.height / 2;
}
}
function mousedownHandler(e) {
emitter.remove();
context.clearRect(0, 0, canvas.width, canvas.height);
setTimeout(function () { emitter.emit(15); }, 200);
}
function tick() {
requestAnimationFrame(tick);
stats.begin();
emitter.rotation += .5;
proton.update();
stats.end();
}
</script>
</body>
</html>