教程列表：

OpenGL ES_ Objective-C Game Tutorial part 12_ Adding enemies

OpenGL ES_ Objective-C Game Tutorial part 11_ Deleting buffers

OpenGL ES_ Objective-C Game Tutorial part 10_ Managing sprites

OpenGL ES_ Objective-C Game Tutorial part 9_ Shooting

OpenGL ES_ Objective-C Game Tutorial part 8_ Touch recognizer

OpenGL ES_ Objective-C Game Tutorial part 7_ Translation and rotation

OpenGL ES_ Objective-C Game Tutorial part 5_ Loading a image

OpenGL ES_ Objective-C Game Tutorial part 4_ Projection matrix

OpenGL ES_ Objective-C Game Tutorial part 3_ Vertex arrays

OpenGL ES_ Objective-C Game Tutorial part 6_ Sprite class

OpenGL ES_ Objective-C Game Tutorial part 2_ Basic setup

OpenGL ES_ Objective-C Game Tutorial part 1_ Xcode setup