我知道这可能是有史以来最容易回答的问题之一,但我已经做了一些搜索,似乎无法找到答案......如何更改精灵图像时用户在Cocos2d-x中点击它?
我所知道的唯一方法就是使用这样的菜单图像:
auto box = MenuItemImage::create("box_untapped.png", "box_tapped.png");
但是只会在用户点击图片时更改图片..即使他们放开按钮,我怎么能让它保持更改?
答案 0 :(得分:3)
此代码不需要任何菜单/按钮/ ...而是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);
希望帮助