cocos2dx 粒子移动类型

//清晰移动类型的作用  
     
   CCParticleSystem* particleSystem1 = CCParticleSun::create();  
   particleSystem1->setTexture(CCTextureCache::sharedTextureCache()->addImage("fire.png"));  
   //自动释放  
   particleSystem1->setAutoRemoveOnFinish(true);  
   //设置移动类型:自由模式  
   particleSystem1->setPositionType(kCCPositionTypeFree);  
   particleSystem1->setPosition(ccp(90, 160));  
   addChild(particleSystem1);  
     
     
   CCParticleSystem* particleSyatem2 = CCParticleSun::create();  
   particleSyatem2->setTexture(CCTextureCache::sharedTextureCache()->addImage("fire.png"));  
   //设置移动类型：相对模式  
   particleSyatem2->setPositionType(kCCPositionTypeRelative);  
   particleSyatem2->setPosition(ccp(200, 160));  
   addChild(particleSyatem2);  
     
     
   //让当前的Layer永久来回移动  
   CCActionInterval* move = CCMoveBy::create(3, ccp(290, 0));  
   CCActionInterval* back = move->reverse();  
   this->runAction(CCRepeatForever::create(CCSequence::create(move, back, NULL)));