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GameState.h

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#ifndef __GameState_H__
#define __GameState_H__

// Includes
#include "GameStateManager.h"

// Forward declares


// GameState
class GameState
   {
   public:
      virtual ~GameState();

      virtual void Update(float deltaTime);

      void SwitchState(StringId state,  float transitionOutTime = 0, float transitionInTime = 0);
   };


// Helper macros for creating gamestates
#define GAMESTATE_IMPLEMENTATION(className)                    \
   private:                                        \
      static GameState* Create##className##Instance()          \
         {                                         \
         return new className;                           \
         }                                         \
   public:                                            \
      static void Register()                             \
         {                                         \
         GameStateManager::GetInstance()->RegisterGameState(      \
                     StringId(#className),               \
                     Create##className##Instance); \
         }                                         \

#endif /* __GameState_H__ */

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