petka.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/>.
 *
 */

#ifndef PETKA_PETKA_H
#define PETKA_PETKA_H

#include "common/random.h"
#include "common/stream.h"
#include "common/memstream.h"
#include "common/savefile.h"

#include "engines/engine.h"
#include "engines/savestate.h"

#include "gui/debugger.h"

#include "graphics/surface.h"

/*
 *  This is the namespace of the Petka engine.
 *
 *  Status of this engine: In Development
 *
 *  Games using this engine:
 *  - Red Comrades Demo
 *  - Red Comrades Save the Galaxy - Fully playable
 *  - Red Comrades 2: For the Great Justice - Fully playable
 */

struct ADGameDescription;

namespace Common {
class SeekableReadStream;
}

namespace Graphics {
class Font;
}

namespace Video {
class VideoDecoder;
}

namespace Petka {

class Console;
class BigDialogue;
class FileMgr;
class SoundMgr;
class QManager;
class QSystem;
class VideoSystem;

enum {
    kPetkaDebugGeneral = 1,
    kPetkaDebugResources,
    kPetkaDebugMessagingSystem,
    kPetkaDebugDialogs,
};

enum {
    GF_COMPRESSED = (1 << 0),
};

enum PETKAActions {
    kActionNone,
    kActionCursorLook,
    kActionCursorWalk,
    kActionCursorTake,
    kActionCursorUse,
    kActionCursorTalk,
    kActionCursorChapayev,
    kActionInventory,
    kActionMap,
    kActionOptions,
    kActionPrevInterface,
    kActionSave,
    kActionLoad,
    kActionSkip,
};

class PetkaEngine : public Engine {
public:
    PetkaEngine(OSystem *syst, const ADGameDescription *desc);
    ~PetkaEngine() override;

    bool isDemo() const;
    bool isPetka2() const;

    void loadPart(byte part);
    void loadPartAtNextFrame(byte part);

    byte getPart();
    int getSaveSlot();

    void loadChapter(byte chapter);

    Common::Error run() override;

    bool hasFeature(EngineFeature f) const override;

    void applyGameSettings() override;

    Common::SeekableReadStream *openFile(const Common::String &name, bool addCurrentPath);
    Common::SeekableReadStream *openIniFile(const Common::String &name);

    void playVideo(Common::SeekableReadStream *stream);
    QSystem *getQSystem() const;
    BigDialogue *getBigDialogue() const;
    SoundMgr *soundMgr() const;
    QManager *resMgr() const;

    VideoSystem *videoSystem() const;

    Common::RandomSource &getRnd();
    const Common::String &getSpeechPath();

    Graphics::Font *getTextFont() const { return _textFont.get(); }
    Graphics::Font *getDescriptionFont() const { return _descriptionFont.get(); }

    void pushMouseMoveEvent();

    Common::Error loadGameState(int slot) override;
    bool canLoadGameStateCurrently(Common::U32String *msg = nullptr) override;

    Common::Error saveGameState(int slot, const Common::String &desc, bool isAutosave) override;
    bool canSaveGameStateCurrently(Common::U32String *msg = nullptr) override;

    int getAutosaveSlot() const override { return - 1;}

    const ADGameDescription *const _desc;
    Common::ScopedPtr<Common::MemoryReadStream> _thumbnail;

protected:
    void pauseEngineIntern(bool pause) override;

private:
    void loadStores();

private:
    Common::ScopedPtr<Console> _console;
    Common::ScopedPtr<FileMgr> _fileMgr;
    Common::ScopedPtr<QManager> _resMgr;
    Common::ScopedPtr<SoundMgr> _soundMgr;
    Common::ScopedPtr<QSystem> _qsystem;
    Common::ScopedPtr<VideoSystem> _vsys;
    Common::ScopedPtr<BigDialogue> _dialogMan;
    Common::ScopedPtr<Video::VideoDecoder> _videoDec;
    Common::ScopedPtr<Graphics::Font> _textFont;
    Common::ScopedPtr<Graphics::Font> _descriptionFont;

    Common::RandomSource _rnd;

    Common::String _currentPath;
    Common::String _speechPath;

    Common::String _chapterStoreName;

    uint8 _part;
    uint8 _nextPart;
    uint8 _chapter;
    bool _shouldChangePart;
    int _saveSlot;
};

class Console : public GUI::Debugger {
public:
    Console(PetkaEngine *vm) {}
    virtual ~Console() {}
};

extern PetkaEngine *g_vm;

WARN_UNUSED_RESULT bool readSaveHeader(Common::InSaveFile &in, SaveStateDescriptor &desc, bool skipThumbnail = true);
Common::String generateSaveName(int slot, const char *gameId);

} // End of namespace Petka

#endif