点击时如何更改 Sprite 图像

How To Change A Sprite Image When Tapped

我知道这可能是有史以来最容易回答的问题之一,但我已经进行了一些搜索,但似乎找不到答案...当用户使用时如何更改精灵图像在 Cocos2d-x?

中点击它

我知道的唯一方法是使用这样的菜单图像:

auto box = MenuItemImage::create("box_untapped.png", "box_tapped.png");

但这只会在用户点击图像时改变图像。即使在他们松开按钮后我如何让它保持改变?

此代码不需要任何 menu/button/... 但 Touch Listener :

auto mySprite = Sprite("A.png");

auto touchListener = EventListenerTouchOneByOne::create();
    ///
touchListener->onTouchBegan = [=](Touch* touch, Event* event){
    auto target = static_cast<Sprite*>(event->getCurrentTarget());
    Point locationInNode = target->convertToNodeSpace(touch->getLocation());
    Size s = target->getContentSize();
    Rect rect = Rect(0, 0, s.width, s.height);
    if (rect.containsPoint(locationInNode))
    {
        mySprite->setTexture("B.png"); // Here
        return true;
    }
    return false;
};

touchListener->onTouchEnded(Touch* touch, Event* event)
{
    mySprite->setTexture("B.png"); // Or Here
}
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, mySprite);

希望有所帮助