Using a lambda as a MenuItem callback: auto closeItem = MenuItemImage::create( "CloseNormal.png", "CloseSelected. Lambdas are also evaluated at runtime instead of compile time.Ī simple lambda: // create a simple Hello World lambda auto func = () Them! A lambda function is a function you write inline in your source code. If you run the sample code for this chapter you will see a Menu containingĪbove we just learned that when you click a menu item it triggers a callback.Ĭ++11 offers lambda functions and therefore Cocos2d-x takes full advantage of * repeat for as many menu items as needed */ auto menu = Menu::createWithArray(MenuItems) creating a menu with a single item // create a menu item by specifying images auto closeItem = MenuItemImage::create( "CloseNormal.png", "CloseSelected.png",ĬC_CALLBACK_1(HelloWorld::menuCloseCallback, this)) Īuto menu = Menu::create(closeItem, NULL) Ī menu can also be created by using a vector of MenuItem objects: // creating a Menu from a Vector of itemsĪuto closeItem = MenuItemImage::create( "CloseNormal.png", "CloseSelected.png", Menu can have just a single item or many items. Use the full path to your home directory. Inside your Cocos2d-x directory run: python setup.py. CCMENU ADD CHILD COCOS2DX INSTALLinstall Apache Ant and verify that it works. (maybe: /AndroidDev) verify that Python 2.7 is installed and is accessible. You tap/click the menu item and it runs the code you specified. unzip the Android SDK and NDK to the same root location. On the menu item a callback is triggered. Have two possible states, a normal and a selected state. Cocos2d-x offers a variety of ways to create your menu items includingīy using a Label object or specifying an image to display. Menu object as a place holder for your menu items: auto myMenu = Menu::create() Īs we described options above of Play, Quit, Settings andĪbout, these are your menu items. Menus often contain buttons like Play, Quit, Settings andĪbout, but could also contain other Menu objects for a nested menu system.Ī Menu object is a special type of Node object. In your game you would probably use a Menu object to navigate through We are all probably familiar with what a menu is.
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