var proton = new Proton();
var emitter = new Proton.Emitter();
//set Rate
emitter.rate = new Proton.Rate(Proton.getSpan(10, 20), 0.1);
//add Initialize
emitter.addInitialize(new Proton.Radius(1, 12));
emitter.addInitialize(new Proton.Life(2, 4));
emitter.addInitialize(new Proton.Velocity(3, Proton.getSpan(0, 360), 'polar'));
//add Behaviour
emitter.addBehaviour(new Proton.Color('ff0000', 'random'));
emitter.addBehaviour(new Proton.Alpha(1, 0));
//set emitter position
emitter.p.x = canvas.width / 2;
emitter.p.y = canvas.height / 2;
emitter.emit();
//add emitter to the proton
proton.addEmitter(emitter);
// add canvas renderer
var renderer = new Proton.Renderer('canvas', proton, canvas);
renderer.start();