cocos2dx 云彩特效

yuncai = static_cast<ImageView*>(Helper::seekWidgetByName(la, "yuncai"));
    Sequence* seq = Sequence::create(MoveTo::create(20, Vec2(s.width, yuncai->getPosition().y)),
        Place::create(Vec2(-yuncai->getContentSize().width, yuncai->getPosition().y)),
        nullptr);
    yuncai->runAction(RepeatForever::create(seq));