CCparticleSystem类封装实现对粒子的控制与调度，当中操作包含有：

1、产生粒子

2、更新粒子状态

3、回收无效的粒子

CCparticleSystem派生出CCParticleSystemPoint(重力式粒子系统)和CCParticleSystemQuad(放射性粒子系统)

粒子效果有：

CCParticleExplosion (爆炸粒子效果)

CCParticleFireworks (烟花粒子效果)

CCParticleFire (火焰粒子效果)

CCParticleFlower (花束粒子效果)

CCParticleGalaxy (星系粒子效果)

CCParticleMeteor (流星粒子效果)

CCParticleSpiral (漩涡粒子效果)

CCParticleSnow (雪粒子效果)

CCParticleSmoke (烟粒子效果)

CCParticleSun (太阳粒子效果)

CCParticleRain (雨粒子效果)

实例：

1、通过制定纹理图片创建粒子效果

	CCParticleSystem *particle = CCParticleExplosion::create();

	particle->setTexture(CCTextureCache::sharedTextureCache()->addImage("fire.png"));

	particle->setAutoRemoveOnFinish(true);

	this->addChild(particle);

2、依据属性创建放射性粒子系统(无重力)CCParticleSystemQuad

CCParticleSystem *m_emitter;

	m_emitter = new CCParticleSystemQuad();

	m_emitter->initWithTotalParticles(300);

	//设置纹理

	m_emitter->setTexture(CCTextureCache::sharedTextureCache()->addImage("fire.png"));

	m_emitter->setDuration(-1);

	//对齐

	m_emitter->setGravity(CCPointZero);

	//角度

	m_emitter->setAngle(90);

	m_emitter->setAngleVar(360);

	//速度

	m_emitter->setSpeed(160);

	m_emitter->setSpeedVar(20);

	//生命周期

	m_emitter->setLife(4);

	m_emitter->setLifeVar(1);

	//粒子旋转

	m_emitter->setStartSpin(0);

	m_emitter->setStartSizeVar(0);

	m_emitter->setEndSpin(0);

	m_emitter->setEndSpinVar(0);

 	//粒子颜色

	ccColor4F startColor = {0.5f,0.5f,0.5f,0.5f};

	m_emitter->setStartColor(startColor);

	ccColor4F startColor2 = {0.5f,0.5f,0.5f,1.0f};

	m_emitter->setStartColorVar(startColor2);

	ccColor4F startColor3 =	{0.1f,0.1f,0.1f,0.2f};

	m_emitter->setEndColor(startColor3);

	ccColor4F startColor4 =	 {0.1f,0.1f,0.1f,0.2f} ;

	m_emitter->setEndColorVar(startColor4);

    //粒子尺寸

	m_emitter->setStartSize(20.0f);

	m_emitter->setStartSizeVar(10.0f);

	m_emitter->setEndSize(32.0f);

	m_emitter->setEndSizeVar(8.0f);

	//每秒出现粒子数

	m_emitter->setEmissionRate(m_emitter->getTotalParticles()/m_emitter->getLife());  // 每秒产生粒子数 =  粒子总数/存活时间 ;

	//位置

	m_emitter->setPosition(ccp(visibleSize.width/2, visibleSize.height/2));

	this->addChild(m_emitter);

效果：

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