Cocos2d-X中的粒子

Cocos2d-x引擎提供了强大的粒子系统，它在模仿自然现象、物理现象及空间扭曲上具备得天独厚的优势，为我们实现一些真实自然而又带有随机性的特效（如爆炸、烟花、水流）提供了方便

程序实例1：创建一个烟花效果的方法1

  CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //烟花效果
    CCParticleFireworks* fw =  CCParticleFireworks::create();
    addChild(fw);

    fw->setPosition(ccp(winSize.width / 2, winSize.height / 2));

执行结果：

程序实例2：创建一个烟花效果的方法2

    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //烟花效果
   	CCParticleSystemQuad* p = CCParticleFireworks::create();
    addChild(p);

    p->setPosition(winSize.width / 2, winSize.height / 2);

执行结果：

程序实例3：创建一个星云效果

   CCSize winSize = CCDirector::sharedDirector()->getWinSize();

      //星云效果
	CCParticleSystemQuad* p2 = CCParticleGalaxy::create();
    addChild(p2);

    p2->setPosition(ccp(winSize.width / 2, winSize.height / 2));

执行结果：

程序实例4：创建一个彗星效果

 CCSize winSize = CCDirector::sharedDirector()->getWinSize();

	 //彗星效果
	CCParticleSystemQuad* p2 = CCParticleMeteor::create();
    addChild(p2);

    p2->setPosition(ccp(winSize.width / 2, winSize.height / 2));

执行结果：

程序实例5：创建一个花束效果

 CCSize winSize = CCDirector::sharedDirector()->getWinSize();

	//鲜花效果
    CCParticleSystemQuad* p2 = CCParticleFlower::create();
    addChild(p2);

    p2->setPosition(ccp(winSize.width / 2, winSize.height / 2));

执行结果：

程序实例6：创建一个火焰效果

 CCSize winSize = CCDirector::sharedDirector()->getWinSize();

	 //火焰效果
	CCParticleSystemQuad* p2 = CCParticleFire::create();
    addChild(p2);

    p2->setPosition(ccp(winSize.width / 2, winSize.height / 2));

执行结果：

程序实例7：5个效果放在一起展示

 CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    //烟花效果
	CCParticleSystemQuad* p1 = CCParticleFireworks::create();

    //星云效果
	CCParticleSystemQuad* p2 = CCParticleGalaxy::create();

    //火焰效果
	CCParticleSystemQuad* p3 = CCParticleFire::create();

    //彗星效果
	CCParticleSystemQuad* p4 = CCParticleMeteor::create();

    //鲜花效果
    CCParticleSystemQuad* p5 = CCParticleFlower::create();

	addChild(p1);
	addChild(p2);
	addChild(p3);
	addChild(p4);
	addChild(p5);

    p1->setPosition(ccp(100, winSize.height / 2));
	p2->setPosition(ccp(200, winSize.height / 2));
	p3->setPosition(ccp(300, winSize.height / 2));
	p4->setPosition(ccp(400, winSize.height / 2));
	p5->setPosition(ccp(500, winSize.height / 2));

执行效果：

程序实例8：执行人工编辑的粒子

    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    CCParticleSystemQuad* p = CCParticleSystemQuad::create("Particles/Galaxy.plist");
	addChild(p);

    p->setPosition(ccp(winSize.width / 2, winSize.height / 2));

执行结果：

程序实例8：执行可以移动的粒子

 CCLayer::init();

    CCSize winSize = CCDirector::sharedDirector()->getWinSize();

    CCParticleSystemQuad* p = CCParticleSystemQuad::create("Particles/Flower.plist");
	addChild(p);
	p->setPosition(ccp(100, winSize.height / 2));

   	CCMoveBy* by = CCMoveBy::create(4, ccp(winSize.width, 0));

    p->runAction(
		CCRepeatForever::create(
		CCSequence::create(by, by->reverse(), NULL)
		)
		);

执行结果：