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queen.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2003-2005 The ScummVM project
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/queen/queen.h,v 1.44.2.1 2005/10/18 02:11:19 sev Exp $
 *
 */

#ifndef QUEEN_H
#define QUEEN_H

#include "base/engine.h"

class GameDetector;
namespace Common {
      class InSaveFile;
}

#if defined(_WIN32_WCE) && (_WIN32_WCE <= 300)

FORCEINLINE int16 READ_BE_INT16(const void *ptr) {
      uint16 result;
      char dummy[2];
      result = READ_BE_UINT16(ptr);
      strcpy(dummy, "x"); // Hello, I'm a drunk optimizer. Thanks for helping me.
      return result;
}

#else

#define READ_BE_INT16 READ_BE_UINT16

#endif

namespace Queen {

#if !defined(__GNUC__)
      #pragma START_PACK_STRUCTS
#endif

struct GameStateHeader {
      uint32 version;
      uint32 flags;
      uint32 dataSize;
      char description[32];
} GCC_PACK;

#if !defined(__GNUC__)
      #pragma END_PACK_STRUCTS
#endif

class BamScene;
class BankManager;
class Command;
class Debugger;
class Display;
class Graphics;
class Grid;
class Input;
class Logic;
class Music;
class Resource;
class Sound;
class Walk;

class QueenEngine : public Engine {
public:

      QueenEngine(GameDetector *detector, OSystem *syst);
      virtual ~QueenEngine();

      BamScene *bam() const { return _bam; }
      BankManager *bankMan() const { return _bankMan; }
      Command *command() const { return _command; }
      Debugger *debugger() const { return _debugger; }
      Display *display() const { return _display; }
      Graphics *graphics() const { return _graphics; }
      Grid *grid() const { return _grid; }
      Input *input() const { return _input; }
      Logic *logic() const { return _logic; }
      Music *music() const { return _music; }
      Resource *resource() const { return _resource; }
      Sound *sound() const { return _sound; }
      Walk *walk() const { return _walk; }

      Common::RandomSource randomizer;

      void registerDefaultSettings();
      void checkOptionSettings();
      void readOptionSettings();
      void writeOptionSettings();

      int talkSpeed() const { return _talkSpeed; }
      void talkSpeed(int speed) { _talkSpeed = speed; }
      bool subtitles() const { return _subtitles; }
      void subtitles(bool enable) { _subtitles = enable; }
      void quitGame() { _quit = true; }

      void update(bool checkPlayerInput = false);

      bool canLoadOrSave() const;
      void saveGameState(uint16 slot, const char *desc);
      void loadGameState(uint16 slot);
      void makeGameStateName(uint16 slot, char *buf);
      void findGameStateDescriptions(char descriptions[100][32]);
      Common::InSaveFile *readGameStateHeader(uint16 slot, GameStateHeader *gsh);

      enum {
            SAVESTATE_CUR_VER  = 1,
            SAVESTATE_MAX_NUM  = 100,
            SAVESTATE_MAX_SIZE = 30000,

            AUTOSAVE_INTERVAL  = 5 * 60 * 1000,
            AUTOSAVE_SLOT      = 0xFF,

            MIN_TEXT_SPEED     = 4,
            MAX_TEXT_SPEED     = 100,
            MAX_MUSIC_VOLUME   = 255
      };

protected:

      void errorString(const char *buf_input, char *buf_output);

      int go();
      int init(GameDetector &detector);


      int _talkSpeed;
      bool _subtitles;
      bool _quit;
      uint32 _lastSaveTime;

      BamScene *_bam;
      BankManager *_bankMan;
      Command *_command;
      Debugger *_debugger;
      Display *_display;
      Graphics *_graphics;
      Grid *_grid;
      Input *_input;
      Logic *_logic;
      Music *_music;
      Resource *_resource;
      Sound *_sound;
      Walk *_walk;
};

} // End of namespace Queen

#endif

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