savegame.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 GRIM_SAVEGAME_H
#define GRIM_SAVEGAME_H

#include "common/savefile.h"

#include "math/mathfwd.h"

namespace Grim {

class Color;

class SaveGame {
public:
    static SaveGame *openForLoading(const Common::String &filename);
    static SaveGame *openForSaving(const Common::String &filename);
    ~SaveGame();

    static uint SAVEGAME_MAJOR_VERSION;
    static uint SAVEGAME_MINOR_VERSION;

    bool isCompatible() const;

    uint saveMajorVersion() const;
    uint saveMinorVersion() const;
    uint32 beginSection(uint32 sectionTag);
    void endSection();
    void read(void *data, int size);
    void write(const void *data, int size);
    uint64 readLEUint64();
    uint32 readLEUint32();
    uint16 readLEUint16();
    int32 readLESint32();
    bool readBool();
    byte readByte();
    void writeLEUint64(uint64 data);
    void writeLEUint32(uint32 data);
    void writeLEUint16(uint16 data);
    void writeLESint32(int32 data);
    void writeBool(bool data);
    void writeByte(byte data);
    void writeString(const Common::String &string);

    void writeVector3d(const Math::Vector3d &vec);
    void writeColor(const Grim::Color &color);
    void writeFloat(float data);
    Math::Vector3d readVector3d();
    Grim::Color readColor();
    float readFloat();
    Common::String readString();

    void checkAlloc(int size);

protected:
    SaveGame();

    uint _majorVersion;
    uint _minorVersion;
    bool _saving;
    Common::InSaveFile *_inSaveFile;
    Common::OutSaveFile *_outSaveFile;
    uint32 _currentSection;
    uint32 _sectionSize;
    uint32 _sectionAlloc;
    uint32 _sectionPtr;
    byte *_sectionBuffer;

    static const int _allocAmmount = 1048576;
};

} // end of namespace Grim

#endif