cocos2dx中层的初始化CCLayer::init()

bool CCLayer::init()
{
bool bRet = false;
do
{
CCDirector * pDirector;
CC_BREAK_IF(!(pDirector = CCDirector::sharedDirector()));//获得导演类的控制权
this->setContentSize(pDirector->getWinSize());//设置层的大小
m_bTouchEnabled = false;//无触碰事件
m_bAccelerometerEnabled = false;//无加速计事件
// success
bRet = true;
} while(0);
return bRet;//返回结果
}