Implementing the game rules interface

Now that we know the basic workings of the game rules system, we can give creating a custom IGameRules implementation a shot.

Note

Before we start, consider whether you actually need a custom IGameRules implementation for your game. The default GameDLL that ships with CGameRules, is an IGameRules implementation specialized for First-Person Shooters (FPS). If your game premise is similar to a FPS, or if you can reuse existing functionality that might be preferrable to writing an implementation from scratch.

To start, we'll need to create two new files; GameRules.cpp and GameRules.h.When you're done, open GameRules.h and create a new class. We'll be naming ours as CGameRules.

After the class is in place, we have to derive from IGameRules. As we mentioned before, game rules are handled as game object extensions. We'll therefore have to use the CGameObjectExtensionHelper template class:

class CGameRules 
  : public CGameObjectExtensionHelper<CGameRules, IGameRules...