10.cocos2dx C++为Sprite添加触摸事件监听器

1.首先头文件定义事件处理的函数原型

private:
    bool onTouchBegan(Touch* tTouch,Event* eEvent);//手指按下事件
    void onTouchMoved(Touch* tTouch,Event* eEvent);//手指移动事件
    void onTouchEnded(Touch* tTouch,Event* eEvent);//手指离开事件

2.实现原型

bool ShopItem::onTouchBegan(Touch* tTouch,Event* eEvent){
　if (sprite->getBoundingBox().containsPoint(tTouch->getLocation())){//判断触摸点是否在目标的范围内
 
　　　　/**这里为事件内容**/
　　　　return true;
　}else
　　　　return false;
　} 
}
 
void ShopItem::onTouchMoved(Touch* tTouch,Event* eEvent){
    /**这里为事件内容**/
}
 
void ShopItem::onTouchEnded(Touch* tTouch,Event* eEvent){
    /**这里为事件内容**/
}

3.绑定事件

    auto listener = EventListenerTouchOneByOne::create();
    listener->onTouchBegan = CC_CALLBACK_2(ShopItem::onTouchBegan, this);
    listener->onTouchMoved = CC_CALLBACK_2(ShopItem::onTouchMoved, this);
    listener->onTouchEnded = CC_CALLBACK_2(ShopItem::onTouchEnded, this);
    this->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener, sprite);