mode_manager.h

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//            Copyright (C) 2004-2007 by The Allacrost Project
//                         All Rights Reserved
//
// This code is licensed under the GNU GPL version 2. It is free software
// and you may modify it and/or redistribute it under the terms of this license.
// See http://www.gnu.org/copyleft/gpl.html for details.

#ifndef __MODE_MANAGER_HEADER__
#define __MODE_MANAGER_HEADER__

#include "utils.h"
#include "defs.h"

namespace hoa_mode_manager {

extern GameModeManager* ModeManager;

extern bool MODE_MANAGER_DEBUG;



const uint8 MODE_MANAGER_DUMMY_MODE  = 0;
const uint8 MODE_MANAGER_BOOT_MODE   = 1;
const uint8 MODE_MANAGER_MAP_MODE    = 2;
const uint8 MODE_MANAGER_BATTLE_MODE = 3;
const uint8 MODE_MANAGER_MENU_MODE   = 4;
const uint8 MODE_MANAGER_SHOP_MODE   = 5;
const uint8 MODE_MANAGER_PAUSE_MODE  = 6;
const uint8 MODE_MANAGER_QUIT_MODE   = 7;
const uint8 MODE_MANAGER_SCENE_MODE  = 8;
const uint8 MODE_MANAGER_WORLD_MODE  = 9;


class GameMode {
  friend class GameModeManager;

protected:
  uint8 mode_type;

private:
  GameMode(const GameMode& other);
  GameMode& operator=(const GameMode& other);
  // Note: Should I make the delete and delete[] operators private too?
public:
  GameMode();
  GameMode(uint8 mt);
  virtual ~GameMode();

  virtual void Update() = 0;
  virtual void Draw() = 0;
  virtual void Reset() = 0;
}; // class GameMode


class GameModeManager : public hoa_utils::Singleton<GameModeManager> {
  friend class hoa_utils::Singleton<GameModeManager>;

private:
  GameModeManager();

  std::vector<GameMode*> _game_stack;

  std::vector<GameMode*> _push_stack;

  bool _state_change;

  uint32 _pop_count;

public:
  ~GameModeManager();

  bool SingletonInitialize ();

  void Pop();

  void PopAll();

  void Push(GameMode* gm);

  uint8 GetGameType();

  GameMode* GetTop();

  void Update();

  void Draw();

  void DEBUG_PrintStack();
}; // class GameModeManager

} // namespace hoa_mode_manager

#endif

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