官术网_书友最值得收藏!

Time for action – adding retina support

This time we'll work with the class AppDelegate.cpp:

  1. Go to AppDelegate.cpp (you'll find it in the Classes folder). Inside the applicationDidFinishLaunching method, and below the director->setAnimationInterval(1.0 / 60) line, add the following lines:
    auto screenSize = glview->getFrameSize();
    auto designSize = Size(768, 1024);
    glview->setDesignResolutionSize(designSize.width, designSize.height, ResolutionPolicy::EXACT_FIT);
    
    std::vector<std::string> searchPaths;
    if (screenSize.width > 768) {
        searchPaths.push_back("hd");
        director->setContentScaleFactor(2);
    } else  {
        searchPaths.push_back("sd");
        director->setContentScaleFactor(1);
    }
    auto fileUtils = FileUtils::getInstance();
    fileUtils->setSearchPaths(searchPaths);
  2. Save the file.

What just happened?

An entire book could be written about this topic, although in this first example, we have a very simple implementation on how to support multiple screen sizes since we are only targeting iPads. Here we are saying: "Hey AppDelegate, I designed this game for a 768 x 1024 screen."

All the values for positioning and font size were chosen for that screen size. If the screen is larger, make sure you grab the files from the hd folder and change the scale by which you will multiply all my positioning and font sizes. If the screen has the same size I designed the game for, use the files in the sd folder and set the scale to 1. (Android adds even more complexity to this, but we'll tackle that in later in the book.)

FileUtils will look for every file you load for your game first inside Resources | sd (or hd). If it doesn't find them there, it will try to find them in Resources. This is a good thing because files shared by both versions may be added only once to the project, inside Resources. That is what we'll do now with the sound files.

主站蜘蛛池模板: 邳州市| 浦东新区| 高尔夫| 齐齐哈尔市| 灌南县| 聊城市| 南雄市| 修水县| 若羌县| 双柏县| 浪卡子县| 台中市| 玉山县| 仪征市| 湖南省| 山阴县| 怀仁县| 溧水县| 闵行区| 崇信县| 湘西| 林周县| 北流市| 桃园市| 亳州市| 涪陵区| 康定县| 云林县| 吉木萨尔县| 安仁县| 民权县| 宁夏| 肇源县| 稷山县| 红桥区| 永吉县| 姚安县| 海城市| 个旧市| 彭阳县| 平舆县|