更新时不关注玩家

Question

有谁知道为什么图层不跟随玩家？

void HelloWorld::update (float delta) {
    cocos2d::Size winSize = cocos2d::Director::getInstance()->getWinSize();
    this->_player->setPosition(this->_player->getPosition().x , this->_player->getPosition().y + (10 * delta));
    this->_background->setPosition(this->_player->getPosition().x , this->_player->getPosition().y);
    this->setPosition(this->_player->getPosition().x + (winSize.width / 2),
                      this->_player->getPosition().y + (winSize.height / 3)); // Follow The player 
}

Answer 1

图层不会跟随播放器使用您正在使用的代码。 Cocos2d-x 为您提供了一个Follow action，您可以将其附加到节点上，并在您想要跟随播放器的图层上运行。示例代码见下文。

auto followAction = Follow::create(playerNode, Rect());
// The Rect you give is the bounds the player can move before 
// the camera (layer) starts following it. Giving empty rect will make sure the camera
// follows as soon as your player starts moving.

layerToFollow->runAction(followAction);

上面的代码将导致 layerToFollow 在你的玩家移动时移动。我希望这会有所帮助。