gob.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 *
 * This file is dual-licensed.
 * In addition to the GPLv3 license mentioned above, this code is also
 * licensed under LGPL 2.1. See LICENSES/COPYING.LGPL file for the
 * full text of the license.
 *
 */

#ifndef GOB_GOB_H
#define GOB_GOB_H

#include "common/random.h"
#include "common/system.h"

#include "graphics/pixelformat.h"

#include "engines/engine.h"

#include "gob/console.h"
#include "gob/detection/detection.h"

namespace Gob {

class Game;
class Sound;
class Video;
class Global;
class Draw;
class DataIO;
class Goblin;
class VideoPlayer;
class Init;
class Inter;
class Map;
class Mult;
class PalAnim;
class Scenery;
class Util;
class SaveLoad;
class PreGob;

#define WRITE_VAR_UINT32(var, val)  _vm->_inter->_variables->writeVar32(var, val)
#define WRITE_VAR_UINT16(var, val)  _vm->_inter->_variables->writeVar16(var, val)
#define WRITE_VAR_UINT8(var, val)   _vm->_inter->_variables->writeVar8(var, val)
#define WRITE_VAR_STR(var, str)     _vm->_inter->_variables->writeVarString(var, str)
#define WRITE_VARO_UINT32(off, val) _vm->_inter->_variables->writeOff32(off, val)
#define WRITE_VARO_UINT16(off, val) _vm->_inter->_variables->writeOff16(off, val)
#define WRITE_VARO_UINT8(off, val)  _vm->_inter->_variables->writeOff8(off, val)
#define WRITE_VARO_STR(off, str)    _vm->_inter->_variables->writeOffString(off, str)
#define READ_VAR_UINT32(var)        _vm->_inter->_variables->readVar32(var)
#define READ_VAR_UINT16(var)        _vm->_inter->_variables->readVar16(var)
#define READ_VAR_UINT8(var)         _vm->_inter->_variables->readVar8(var)
#define READ_VARO_UINT32(off)       _vm->_inter->_variables->readOff32(off)
#define READ_VARO_UINT16(off)       _vm->_inter->_variables->readOff16(off)
#define READ_VARO_UINT8(off)        _vm->_inter->_variables->readOff8(off)
#define GET_VAR_STR(var)            _vm->_inter->_variables->getAddressVarString(var)
#define GET_VARO_STR(off)           _vm->_inter->_variables->getAddressOffString(off)
#define GET_VAR_FSTR(var)           _vm->_inter->_variables->getAddressVarString(var)
#define GET_VARO_FSTR(off)          _vm->_inter->_variables->getAddressOffString(off)

#define WRITE_VAR_OFFSET(off, val)  WRITE_VARO_UINT32((off), (val))
#define WRITE_VAR(var, val)         WRITE_VAR_UINT32((var), (val))
#define VAR_OFFSET(off)             READ_VARO_UINT32(off)
#define VAR(var)                    READ_VAR_UINT32(var)


// WARNING: Reordering these will invalidate save games!
enum Endianness {
    kEndiannessLE,
    kEndiannessBE
};

enum EndiannessMethod {
    kEndiannessMethodLE,     
    kEndiannessMethodBE,     
    kEndiannessMethodSystem, 
    kEndiannessMethodAltFile 
};

enum {
    kDebugFuncOp     = 1 <<  0,
    kDebugDrawOp     = 1 <<  1,
    kDebugGobOp      = 1 <<  2,
    kDebugSound      = 1 <<  3,
    kDebugExpression = 1 <<  4,
    kDebugGameFlow   = 1 <<  5,
    kDebugFileIO     = 1 <<  6,
    kDebugSaveLoad   = 1 <<  7,
    kDebugGraphics   = 1 <<  8,
    kDebugVideo      = 1 <<  9,
    kDebugHotspots   = 1 << 10,
    kDebugDemo       = 1 << 11
};

class GobEngine : public Engine {
private:
    GameType _gameType;
    int32 _features;
    Common::Platform _platform;
    const char *_extra;

    EndiannessMethod _endiannessMethod;

    uint32 _pauseStart;

    // Engine APIs
    Common::Error run() override;
    bool hasFeature(EngineFeature f) const override;
    void pauseEngineIntern(bool pause) override;
    void syncSoundSettings() override;

    Common::Error initGameParts();
    Common::Error initGraphics();

    void deinitGameParts();

public:
    static const Common::Language _gobToScummVMLang[];

    Common::RandomSource _rnd;

    Common::Language _language;
    uint16 _width;
    uint16 _height;
    uint8 _mode;

    Graphics::PixelFormat _pixelFormat;

    Common::String _startStk;
    Common::String _startTot;
    uint32 _demoIndex;

    bool _copyProtection;
    bool _noMusic;

    GobConsole *_console;

    bool _resourceSizeWorkaround;
    bool _enableAdibou2FreeBananasWorkaround;
    bool _enableAdibou2FlowersInfiniteLoopWorkaround;

    Global *_global;
    Util *_util;
    DataIO *_dataIO;
    Game *_game;
    Sound *_sound;
    Video *_video;
    Draw *_draw;
    Goblin *_goblin;
    Init *_init;
    Map *_map;
    Mult *_mult;
    PalAnim *_palAnim;
    Scenery *_scenery;
    Inter *_inter;
    SaveLoad *_saveLoad;
    VideoPlayer *_vidPlayer;
    PreGob *_preGob;

    const char *getLangDesc(int16 language) const;
    void validateLanguage();
    void validateVideoMode(int16 videoMode);

    void pauseGame();

    EndiannessMethod getEndiannessMethod() const;
    Endianness getEndianness() const;
    Common::Platform getPlatform() const;
    GameType getGameType() const;
    bool isCD() const;
    bool isEGA() const;
    bool hasAdLib() const;
    bool isSCNDemo() const;
    bool isBATDemo() const;
    bool is640x400() const;
    bool is640x480() const;
    bool is800x600() const;
    bool is16Colors() const;
    bool isTrueColor() const;
    bool isDemo() const;

    bool hasResourceSizeWorkaround() const;

    bool isCurrentTot(const Common::String &tot) const;

    void setTrueColor(bool trueColor);

    const Graphics::PixelFormat &getPixelFormat() const;

    GobEngine(OSystem *syst);
    ~GobEngine() override;

    void initGame(const GOBGameDescription *gd);
    GameType getGameType(const char *gameId) const;

    const char *getGameVersion() const;
};

} // End of namespace Gob

#endif // GOB_GOB_H