【Cocos2d-x 粒子系统】火球用手指飞起来

程序：

创建球

	sp1 = CCSprite::create("ball.png");
	sp1->setPosition(ccp(10, visibleSize.height/2));
	this->addChild(sp1);
	setTouchEnabled(true);	sp1 = CCSprite::create("ball