Software Engineering and Computer Games

14.2. The 2D Game Stub

The gamestub.* files are meant to be a possible starting point for your games. Alter the gamestub.* files freely. The basic idea is to have five kinds of critters: the player, the player’s bullets, a rival armed critter, the rival’s bullets, and a prop critter that can act as a kind of food or health-pack for the player. This means that six classes are prototyped in gamestub.h : cGameStub, cCritterStubPlayer, cCritterStubPlayerBullet, cCritterStubRival, cCritterStubRivalBullet, and cCritterStubProp. There’s some more discussion of these classes and a UML diagram (Figure 3.11) of them in the last section of Chapter 3: The Pop Framework.

The cGameStub has an int _rivalcount field in addition to the int _seedcount field it ...