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/* 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 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.
*
*/
#ifndef SCI_ENGINE_SAVEGAME_H
#define SCI_ENGINE_SAVEGAME_H
#include "common/scummsys.h"
#include "common/str.h"
#include "sci/sci.h"
namespace Sci {
struct EngineState;
/*
* Savegame format history:
*
* Version - new/changed feature
* =============================
* 31 - priority for sound effects/music is now a signed int16, instead of a byte
* 30 - synonyms
* 29 - system strings
* 28 - heap
* 27 - script created windows
* 26 - play time
* 25 - palette intensity
* 24 - palvary
* 23 - script buffer and heap size
* 22 - game signature
* 21 - script local variables
* 20 - exports/synonyms
* 19 - exportsAreWide
* 18 - SCI32 arrays/strings
* 17 - sound
*
*/
enum {
CURRENT_SAVEGAME_VERSION = 31,
MINIMUM_SAVEGAME_VERSION = 14
};
// Savegame metadata
struct SavegameMetadata {
Common::String name;
int version;
Common::String gameVersion;
int saveDate;
int saveTime;
uint32 playTime;
uint16 gameObjectOffset;
uint16 script0Size;
};
/**
* Saves a game state to the hard disk in a portable way.
* @param s The state to save
* @param save The stream to save to
* @param savename The description of the savegame
* @return 0 on success, 1 otherwise
*/
bool gamestate_save(EngineState *s, Common::WriteStream *save, const Common::String &savename, const Common::String &version);
/**
* Restores a game state from a directory.
* @param s An older state from the same game
* @param dirname The subdirectory to restore from
*/
void gamestate_restore(EngineState *s, Common::SeekableReadStream *save);
/**
* Read the header from a savegame.
*/
bool get_savegame_metadata(Common::SeekableReadStream* stream, SavegameMetadata* meta);
} // End of namespace Sci
#endif // SCI_ENGINE_SAVEGAME_H
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