I added cCritter3DcharacterSurvival so that we can use this class special for our characters in the survival game. So any generic behavior that all the critters in our game should have should be made here.

I added cGame3D so that we can implement our game environment and affects without changing the original code from the cGame3D.

I changed the ACDoc class so that it uses our custom survival game object, this should be what we use to implement our game environment and affects, NOT the cGame3D.

So I made use of both the classes that I added so any classes that we create from here on out should probably be a subclass of on the these classes.

And I set the code in our game class so that only our permanent NPCs are added without the spawning of the background critters.