Learning Java by Building Android Games - Second Edition

Controlling the game with a GameState class

As the code for this game is spread over many classes to keep each class manageable it raises the problem of what happens when one of these classes needs to know what is going on inside another of the classes. At least when we crammed everything into the main game engine class all the required variables were in scope!

Tip

The author's estimate is that if we continued with our usual pattern (where we cram everything into the game engine) for this project then the GameEngine class would have around 600 lines of code! By the end of this project, doing things a little differently, it will have barely 100 lines of code. Each code file/class will be much simpler. We will, however, need to spend more time understanding ...