cocos3 粒子系统

    Size s = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();
        
    ParticleSnow *snow = ParticleSnow::create();
    snow->setPosition(Point(s.width/2,s.height));
    snow->setTextureWithRect(Director::getInstance()->getTextureCache()->addImage("snow.png"),Rect(0,0,64,64));
    addChild(snow);