Implementation Prerequisites - Learn OpenGL ES: For Mobile Game and Graphics Development - page 43

We will start working on this game after discussing ES 2.0 fundamentals ( Buffers ,
GLSL , State Management and 3D-Transformation ) in Chapter 3 , and we will design
the objects for the game (tank and invaders) using Blender in Chapter 4 . But before
that, let's see how to create menus for the game.
Creating Menus for the Game
Most games initialize with a main menu for options or settings, and the main menu
displays after a splash screen, which is where the logo of the game is displayed. We
won't use a splash screen, but I will explain the basic features and functioning of the
GAME MENU application from the source code to help you get started with menus
for the game.
Under “File Menu” in Eclipse, select “Import” and then select “Existing Projects
into Workspace.” Import the archive file gamemenu.zip from the Chapter2 folder.
This will load the GAME MENU application into your workspace.
Notice that the structure of the GAME MENU application is similar to the GL
SURFACE application we created in Chapter 1 . Unlike that application, however, we
have a modified entry point; class Main in the Main.java file now extends the
ListActivity class for hosting a ListView (with id @android:id/list )
to display the menu options. The options are inside the options.xml file ( Listing
2-1 ) inside the res/values folder.
Listing 2-1. GAME MENU/res/values/options.xml
<resources>
<string-array name="options">
<item name="game">New Game</item>
<item name="score">High Score</item>
<item name="player">Edit Player</item>
<item name="sound">Toggle Sound</item>
<item name="data">Clear Data</item>
</string-array>
</resources>
In the onCreate method of class Main ( GAME MENU/src/com/apress/an-
droid/gamemenu/Main.java ), setListAdapter is called to set the default