This hour carried you through the design and construction of another complete game, Meteor Defense. The Meteor Defense game took advantage of the new game engine features you developed in the previous two hours, and also took a leap forward in terms of showing you how to create engaging action games. The game makes heavy use of sprites, including frame animationnot to mention a great deal of collision detection. Perhaps most important is the fact that the Meteor Defense game can serve as a great starting point for creating an action game of your own that takes full advantage of the game engine.
This hour concludes this part of the book. The next part of the book tackles artificial intelligence, or AI, which allows you to make your games more intelligent.