<!DOCTYPE HTML>
<html>
<head>
<title>behaviour-Force</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="//localhost:3001/build/proton.web.js"></script>
<script>
var canvas;
var context;
var proton;
var renderer;
var emitter;
var stats;
var forceBehaviour;
main();
function main() {
canvas = document.getElementById("testCanvas");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
context = canvas.getContext('2d');
addStats();
createProton();
tick();
canvas.addEventListener('mousemove', mousemoveHandler, 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.getElementById('container').appendChild(stats.domElement);
}
function createProton() {
proton = new Proton;
emitter = new Proton.Emitter();
emitter.rate = new Proton.Rate(new Proton.Span(5, 10), new Proton.Span(.2, .5));
emitter.addInitialize(new Proton.Mass(1));
emitter.addInitialize(new Proton.Body(['image/star.png', 'image/star2.png', 'image/star3.png']));
emitter.addInitialize(new Proton.Life(10, 15));
emitter.addInitialize(new Proton.Velocity(new Proton.Span(1, 2), new Proton.Span(0, 360), 'polar'));
forceBehaviour = new Proton.Force(0, 0);
emitter.addBehaviour(new Proton.Rotate(Proton.getSpan(0, 180), 2.5, 'add'));
emitter.addBehaviour(forceBehaviour, new Proton.Gravity(.9));
emitter.addBehaviour(new Proton.RandomDrift(10, 10, .05));
emitter.addBehaviour(new Proton.CrossZone(new Proton.RectZone(-50, -50, canvas.width + 100, canvas.height + 100), 'dead'));
emitter.addBehaviour(new Proton.Scale(Proton.getSpan(.3, .6), Proton.getSpan(1.5, 2)));
emitter.p.x = canvas.width / 2;
emitter.p.y = canvas.height / 2;
emitter.emit();
proton.addEmitter(emitter);
renderer = new Proton.CanvasRenderer(canvas);
renderer.onProtonUpdate = function() {
context.fillStyle = "rgba(0, 0, 0, 0.05)";
context.fillRect(0, 0, canvas.width, canvas.height);
};
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 mousemoveHandler(e) {
if (e.layerX || e.layerX == 0) {
_x = e.layerX - canvas.width / 2;
_y = e.layerY - canvas.height / 2;
} else if (e.offsetX || e.offsetX == 0) {
_x = e.offsetX - canvas.width / 2;
_y = e.offsetY - canvas.height / 2;
}
var R = 3.9;
var tha = Math.atan2(_y, _x);
var x = Math.cos(tha) * R;
var y = Math.sin(tha) * R;
forceBehaviour.reset(x, y);
}
function tick() {
requestAnimationFrame(tick);
stats.begin();
proton.update();
proton.stats.update(2, document.body);
stats.end();
}
</script>
</body>
</html>