Method init

templates/cpp/Source/MainScene.cpp:42–143

on "init" you need to initialize your instance

// on "init" you need to initialize your instance
bool MainScene::init()
{
    //////////////////////////////
    // 1. super init first
    if (!Scene::init())
    {
        return false;
    }

    auto visibleSize = _director->getVisibleSize();
    auto origin      = _director->getVisibleOrigin();
    auto safeArea    = _director->getSafeAreaRect();
    auto safeOrigin  = safeArea.origin;

    /////////////////////////////
    // 2. add a menu item with "X" image, which is clicked to quit the program
    //    you may modify it.

    // add a "close" icon to exit the progress. it's an autorelease object
    auto closeItem = MenuItemImage::create("CloseNormal.png", "CloseSelected.png",
                                           AX_CALLBACK_1(MainScene::menuCloseCallback, this));

    if (closeItem == nullptr || closeItem->getContentSize().width <= 0 || closeItem->getContentSize().height <= 0)
    {
        problemLoading("'CloseNormal.png' and 'CloseSelected.png'");
    }
    else
    {
        float x = safeOrigin.x + safeArea.size.width - closeItem->getContentSize().width / 2;
        float y = safeOrigin.y + closeItem->getContentSize().height / 2;
        closeItem->setPosition(Vec2(x, y));
    }

    // create menu, it's an autorelease object
    auto menu = Menu::create(closeItem, NULL);
    menu->setPosition(Vec2::ZERO);
    this->addChild(menu, 1);

    /////////////////////////////
    // 3. add your codes below...

    // Some templates (uncomment what you  need)
    _touchListener                 = EventListenerTouchAllAtOnce::create();
    _touchListener->onTouchesBegan = AX_CALLBACK_2(MainScene::onTouchesBegan, this);
    _touchListener->onTouchesMoved = AX_CALLBACK_2(MainScene::onTouchesMoved, this);
    _touchListener->onTouchesEnded = AX_CALLBACK_2(MainScene::onTouchesEnded, this);
    _eventDispatcher->addEventListenerWithSceneGraphPriority(_touchListener, this);

    //_mouseListener                = EventListenerMouse::create();
    //_mouseListener->onMouseMove   = AX_CALLBACK_1(MainScene::onMouseMove, this);
    //_mouseListener->onMouseUp     = AX_CALLBACK_1(MainScene::onMouseUp, this);
    //_mouseListener->onMouseDown   = AX_CALLBACK_1(MainScene::onMouseDown, this);
    //_mouseListener->onMouseScroll = AX_CALLBACK_1(MainScene::onMouseScroll, this);
    //_eventDispatcher->addEventListenerWithSceneGraphPriority(_mouseListener, this);

    _keyboardListener                = EventListenerKeyboard::create();
    _keyboardListener->onKeyPressed  = AX_CALLBACK_2(MainScene::onKeyPressed, this);
    _keyboardListener->onKeyReleased = AX_CALLBACK_2(MainScene::onKeyReleased, this);