Starling 粒子particlesystem 使用实例

转自：http://wiki.starling-framework.org/extensions/particlesystem

// embed configuration XML

[Embed(source="fire.pex", mimeType="application/octet-stream")]

private static const FireConfig:Class;

 

// embed particle texture

[Embed(source = "fire_particle.png")]

private static const FireParticle:Class;

 

// instantiate embedded objects

var psConfig:XML = XML(new FireConfig());

var psTexture:Texture = Texture.fromBitmap(new FireParticle());

 

// create particle system

var ps:PDParticleSystem = new PDParticleSystem(psConfig, psTexture);

ps.x = 160;

ps.y = 240;

 

// add it to the stage and the juggler

addChild(ps);

Starling.juggler.add(ps);

 

// change position where particles are emitted

ps.emitterX = 20;

ps.emitterY = 40;

 

// start emitting particles

ps.start();

 

// emit particles for two seconds, then stop

ps.start(2.0);

 

// stop emitting particles; on restart, it will continue from the current state

ps.pause();

 

// stop emitting particles; on restart, it will start from scratch

ps.stop();