修改跑酷

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bool GameMenu::init()//新游戏，继续游戏，关于，声音，join进主菜单并设置位置和切换场景回调 层是init

{
    if ( !CCLayer::init() )//重载父类
    {
        return false;
    }
    
    CCSize size = CCDirector::sharedDirector()->getWinSize();    
    //菜单背景
    CCSprite* bg = CCSprite::create("MainMenu.png");//主菜单的界面  直接替换为捕鱼主界面背景
    bg->setScale(0.5);
    bg->setPosition( ccp(size.width/2, size.height/2) );//放在中间
    this->addChild(bg, 0,0);
    //按钮
    CCMenuItemImage *newGameItem = CCMenuItemImage::create("newGameA.png", "newGameB.png",this,menu_selector(GameMenu::menuNewGameCallback));
    newGameItem->setScale(0.5);
    newGameItem->setPosition(ccp(size.width / 2 + 40,size.height / 2 - 20));
    newGameItem->setEnabled(false);
    CCMenuItemImage *continueItem = CCMenuItemImage::create("continueA.png", "continueB.png",this,menu_selector(GameMenu::menuContinueCallback));
    continueItem->setScale(0.5);
    continueItem->setPosition(ccp(size.width / 2 + 40,size.height / 2 - 60));
    continueItem->setEnabled(false);

    CCMenuItemImage *aboutItem = CCMenuItemImage::create("aboutA.png", "aboutB.png",this,menu_selector(GameMenu::menuAboutCallback));
    aboutItem->setScale(0.5);
    aboutItem->setPosition(ccp(size.width / 2 + 40,size.height / 2 - 100));
    aboutItem->setEnabled(false);
    soundItem = CCMenuItemImage::create("sound-on-A.png", "sound-on-B.png",this,menu_selector(GameMenu::menuSoundCallback));
    soundItem->setScale(0.5);
    soundItem->setEnabled(false);
    soundItem->setPosition(ccp(40,40));
    CCMenu* mainmenu = CCMenu::create(newGameItem,continueItem,aboutItem,soundItem,NULL);
    mainmenu->setPosition(ccp(0,0));
    this->addChild(mainmenu,1,3);//菜单场景中加入菜单
    issound = true;
    //初始化声音
    //SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic( CCFileUtils::sharedFileUtils()->fullPathFromRelativePath("background.mp3") );
    //SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5);
    //SimpleAudioEngine::sharedEngine()->playBackgroundMusic(std::string(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath("background.mp3")).c_str(), true);
    return true;
}