<!DOCTYPE HTML>
<html>
<head>
<title>sparks-sun</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;
}
#container {
width: 100%;
height: 100%;
}
#testCanvas {
background: #000;
}
</style>
</head>
<body>
<div id="container">
<canvas id="testCanvas"></canvas>
</div>
<script src="../../lib/requestAnimationFrame.min.js"></script>
<script src="../../lib/stats.min.js"></script>
<script src="../../lib/TweenLite.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;
var mouseObj;
var attractionForce;
main();
function main() {
canvas = document.getElementById("testCanvas");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
addStats();
loadImage();
mouseObj = {
x: canvas.width / 2,
y: canvas.height / 2
};
resize();
}
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 loadImage() {
var image = new Image()
image.onload = function (e) {
createProton(e.target);
tick();
canvas.addEventListener('mousedown', mouseDownHandler, false);
}
image.src = 'image/particle.png';
}
function createProton(image) {
proton = new Proton;
emitter = new Proton.Emitter();
emitter.rate = new Proton.Rate(new Proton.Span(30, 50), .1);
emitter.addInitialize(new Proton.Mass(1));
emitter.addInitialize(new Proton.Body(image));
//emitter.addInitialize(new Proton.P(new Proton.PointZone(canvas.width / 2, canvas.height / 2)));
emitter.addInitialize(new Proton.Life(1, 1.7));
emitter.addInitialize(new Proton.V(new Proton.Span(3, 5), new Proton.Span(0, 360), 'polar'));
emitter.addBehaviour(new Proton.Color('#ff0000', '#ffff00'));
attractionForce = new Proton.Attraction(mouseObj, 10, 200);
emitter.addBehaviour(attractionForce);
emitter.addBehaviour(new Proton.Scale(Proton.getSpan(1, 1.6), Proton.getSpan(0, .1)));
emitter.addBehaviour(new Proton.Alpha(1, .2));
emitter.p.x = canvas.width / 2;
emitter.p.y = canvas.height / 2;
emitter.emit();
proton.addEmitter(emitter);
renderer = new Proton.WebGLRenderer(canvas);
renderer.blendFunc("SRC_ALPHA", "ONE");
proton.addRenderer(renderer);
}
function resize() {
window.onresize = function () {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
mouseObj.x = canvas.width / 2;
mouseObj.y = canvas.height / 2;
emitter.p.x = canvas.width / 2;
emitter.p.y = canvas.height / 2;
renderer.resize(canvas.width, canvas.height);
}
}
function mouseDownHandler(e) {
TweenLite.to(emitter.p, 1.5, {
x: e.offsetX,
y: e.offsetY,
});
TweenLite.to(mouseObj, 3.5, {
x: e.offsetX,
y: e.offsetY,
});
attractionForce.reset(mouseObj, 0, 200);
setTimeout(function () { attractionForce.reset(mouseObj, 10, 200); }, 500);
}
function tick() {
requestAnimationFrame(tick);
stats.begin();
if (proton) {
proton.update();
proton.stats.update(2, document.body);
}
stats.end();
}
</script>
</body>
</html>