Follow 在地图中使地图和人物一起运动

Follow  在地图中使地图和人物一起运动

bool HelloWorld::init()
{
    //////////////////////////////
    // 1. super init first
    if ( !Layer::init() )
    {
        return false;
    }

    Size visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();

    // add "HelloWorld" splash screen"
    auto sprite = Sprite::create("HelloWorld.png");

    // position the sprite on the center of the screen
    sprite->setPosition(Vec2(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));

    // add the sprite as a child to this layer
    this->addChild(sprite, 0);


    ///////// Follow  在地图中使地图和人物一起运动  //////////


    Sprite* sprite1 = Sprite::create("button.png");
    sprite1->setPosition(Vec2(visibleSize.width * 0.2, visibleSize.height * 0.5));
    this->addChild(sprite1);

    Sprite* sprite2 = Sprite::create("CloseNormal.png");
    sprite2->setPosition(Vec2(visibleSize.width * 0.8, visibleSize.height * 0.8));
    this->addChild(sprite2);

    ActionInterval *move = MoveTo::create(2, Vec2(visibleSize.width * 0.4, visibleSize.height * 0.5));

    // 参数(跟随的节点，跟随的范围)(sprite1:跟随精灵, CCRectZero:一直跟随);
    Follow *follow = Follow::create(sprite1, CCRectZero);

    log("sprite1  %f, %f", sprite1->getPositionX(), sprite1->getPositionY());
    log("sprite2  %f, %f", sprite2->getPositionX(), sprite2->getPositionY());

    ActionInstant *funcN = CallFuncN::create(this, callfuncN_selector(HelloWorld::funcNCallBack));
    //sprite1->setTag(111);
    sprite1->runAction(Sequence::create(move ,funcN,nullptr));

    sprite2->runAction(follow);

    ///////// follow  在地图中使地图和人物一起运动  //////////

    return true;
}


// 获取精灵的回调函数;精灵变大 3 倍
void HelloWorld::funcNCallBack(Node *pSender){

    Sprite* sprite = (Sprite*)pSender;
    ActionInterval *scale = ScaleTo::create(1.0f, 3.0f);
    sprite->runAction(scale);

    log("sprite  %f, %f", sprite->getPositionX(), sprite->getPositionY());

}

控制台显示内容

sprite1  192.000000, 320.000000
sprite2  768.000000, 512.000000

sprite1  384.000000, 320.000000