OpenGL ES: Going 3D - Beginning Android Games - page 507

An Example
We want to create a cube mesh, as shown in the preceding snippets, with the crate texture
applied. Since we model the cube in model space around the origin, we have to use
glTranslatef() to move it into world space, much like we did with Bob's model in the BobTest
example. We also want our cube to spin around the y axis, which we can achieve by using
glRotatef() , again like in the BobTest example. Listing 10-6 shows the complete code of the
CubeScreen class contained in a CubeTest class.
Listing 10-6. Excerpt from CubeTest.java; Rendering a Texture Cube
class CubeScreen extends GLScreen {
Vertices3 cube;
Texture texture;
float angle = 0;
public CubeScreen(Game game) {
super (game);
cube = createCube();
texture = new Texture(glGame, "crate.png");
}
private Vertices3 createCube() {
float [] vertices = { −0.5f, -0.5f, 0.5f, 0, 1,
0.5f, -0.5f, 0.5f, 1, 1,
0.5f, 0.5f, 0.5f, 1, 0,
-0.5f, 0.5f, 0.5f, 0, 0,
0.5f, -0.5f, 0.5f, 0, 1,
0.5f, -0.5f, -0.5f, 1, 1,
0.5f, 0.5f, -0.5f, 1, 0,
0.5f, 0.5f, 0.5f, 0, 0,
0.5f, -0.5f, -0.5f, 0, 1,
-0.5f, -0.5f, -0.5f, 1, 1,
-0.5f, 0.5f, -0.5f, 1, 0,
0.5f, 0.5f, -0.5f, 0, 0,
-0.5f, -0.5f, -0.5f, 0, 1,
-0.5f, -0.5f, 0.5f, 1, 1,
-0.5f, 0.5f, 0.5f, 1, 0,
-0.5f, 0.5f, -0.5f, 0, 0,
-0.5f, 0.5f, 0.5f, 0, 1,
0.5f, 0.5f, 0.5f, 1, 1,
0.5f, 0.5f, -0.5f, 1, 0,
-0.5f, 0.5f, -0.5f, 0, 0,
-0.5f, -0.5f, 0.5f, 0, 1,
0.5f, -0.5f, 0.5f, 1, 1,