cocos2dx 2.0 可點選區域設定以及随父節點的scale縮放改變

最近做視窗的适配縮放時發現視窗界面的子節點page(class Page : public CCLayer)的可點選區域沒有随着父節點的縮放而改變，是以需要設定一個m_scale的變量來儲存父節點的scale進而改變可點選區域

代碼塊

bool Page::ccTouchBegan(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent)
{
    if (!isVisible())
        return false;
    
    CCPoint pt = convertToWorldSpace(CCPointZero);
    CCPoint ptTouch = pTouch->getLocation();
    CCSize contentSize = getContentSize();
    
    // touch在page範圍内
    if (ptTouch.x < pt.x || ptTouch.x > pt.x + contentSize.width*m_Scale || ptTouch.y < pt.y || ptTouch.y > pt.y + contentSize.height*m_Scale)
    {
        return false;
    }
    
    clearDeadTouchDelegate();
    
    for (list<TouchDelegate>::iterator it = m_touchNodes.begin(); it != m_touchNodes.end(); ++it)
    {
        if(eTouchDead == it->status)
            continue;
        
        eTouchStatus e = it->delegate->ccTouchBegan(pTouch, pEvent) ? eTouchDown : eTouchNone;
        if(it->status != eTouchDead)
            it->status = e;
    }
    
    return true;
}