CCparticleSystem类封装实现对粒子的控制与调度,其中操作包括有:
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)
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);
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:
原文:http://blog.csdn.net/oyangyufu/article/details/38386841