Coscos2d-x之世界坐标转换为节点坐标、菜单按钮

1.世界坐标—–>节点坐标

bool MyTouch::cctouchBegan(CCTouch *touch, CCEvent* ev){    CCSprite* sprite = CCSprite::create();    CCPoint pt = touch->getLocation(); //世界坐标体系    CCNode* node = sprite->getParent();    //将世界坐标体系转换为节点坐标体系    pt = node->convertToNodeSpace(pt);    //CCRect rc = sprite->boundingBox();    return true;}

2.菜单按钮