Cocos2d-x3.0 文件处理(2)

判断文件是否存在

        auto s = Director::getInstance()->getWinSize();
        auto sharedFileUtils = FileUtils::getInstance();
        
        Label* pTTF;
        bool isExist = false;
        
        //判断文件是否存在
        isExist = sharedFileUtils->isFileExist("grossini.png");

        pTTF = Label::createWithSystemFont(isExist ? "Images/grossini.png exists" : "Images/grossini.png doesn't exist", "", 20);
        pTTF->setPosition(Point(s.width / 2, s.height / 2));
        this->addChild(pTTF);

auto s = Director::getInstance()->getWinSize();
        auto sharedFileUtils = FileUtils::getInstance();
        
        
        ValueMap dict;
        dict["grossini.bmp"] = Value("grossini.png");
        dict["grossini.xcf"] = Value("grossini.png");
        
        sharedFileUtils->setFilenameLookupDictionary(dict);
        auto sprite = Sprite::create("grossini.bmp");
        this->addChild(sprite);
        
        sprite->setPosition(Point(s.width / 2, s.height / 2));