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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.
*
* $URL$
* $Id$
*
*/
#ifndef LASTEXPRESS_SAVELOAD_H
#define LASTEXPRESS_SAVELOAD_H
/*
Savegame format
---------------
header: 32 bytes
uint32 {4} - signature: 0x12001200
uint32 {4} - chapter - needs to be [0; 5]
uint32 {4} - time - needs to be >= 32 [1061100; timeMax]
uint32 {4} - ?? needs to be >= 32
uint32 {4} - ?? needs to be = 1
uint32 {4} - Brightness (needs to be [0-6])
uint32 {4} - Volume (needs to be [0-7])
uint32 {4} - ?? needs to be = 9
Game data Format
-----------------
uint32 {4} - entity
uint32 {4} - current time
uint32 {4} - time delta (how much a tick is in "real" time)
uint32 {4} - time ticks
uint32 {4} - scene Index max: 2500
byte {1} - use backup scene
uint32 {4} - backup Scene Index 1 max: 2500
uint32 {4} - backup Scene Index 2 max: 2500
uint32 {4} - selected inventory item max: 32
uint32 {4*100*10} - positions (by car)
uint32 {4*16} - compartments
uint32 {4*16} - compartments ??
uint32 {4*128} - game progress
byte {512} - game events
byte {7*32} - inventory
byte {5*128} - objects
byte {1262*40} - entities (characters and train entities)
uint32 {4} - sound queue state
uint32 {4} - ??
uint32 {4} - number of sound entries
byte {count*68} - sound entries
byte {16*128} - save point data
uint32 {4} - number of save points (max: 128)
byte {count*16} - save points
... more unknown stuff
*/
#include "lastexpress/shared.h"
#include "common/savefile.h"
namespace LastExpress {
class LastExpressEngine;
class SaveLoad {
public:
enum HeaderType {
kHeaderTypeNone = 0,
kHeaderType1 = 1,
kHeaderType2 = 2,
kHeaderType3 = 3,
kHeaderType4 = 4,
kHeaderType5 = 5
};
struct SavegameMainHeader {
uint32 signature;
uint32 index;
uint32 time;
uint32 field_C;
uint32 field_10;
int32 brightness;
int32 volume;
uint32 field_1C;
};
struct SavegameEntryHeader {
uint32 signature;
HeaderType type;
uint32 time;
int field_C;
ChapterIndex chapter;
EventIndex event;
int field_18;
int field_1C;
SavegameEntryHeader() {
signature = 0;
type = kHeaderTypeNone;
time = 0;
field_C = 0;
chapter = kChapterAll;
event = kEventNone;
field_18 = 0;
field_1C = 0;
}
};
SaveLoad(LastExpressEngine *engine);
~SaveLoad();
// Save & Load
bool loadGame(GameId id);
void saveGame(SavegameType type, EntityIndex entity, uint32 value);
void saveVolumeBrightness();
// Init
void initSavegame(GameId id, bool resetHeaders);
static void writeMainHeader(GameId id);
// Getting information
static bool isSavegamePresent(GameId id);
static bool isSavegameValid(GameId id);
// Opening save files
static Common::InSaveFile *openForLoading(GameId id);
static Common::OutSaveFile *openForSaving(GameId id);
// Headers
static bool loadMainHeader(GameId id, SavegameMainHeader* header);
SavegameEntryHeader *getEntry(uint32 index);
void clearEntries();
uint32 getLastSavegameTicks() const { return _gameTicksLastSavegame; }
private:
LastExpressEngine *_engine;
uint32 _gameTicksLastSavegame;
Common::Array<SavegameEntryHeader *> _gameHeaders;
static Common::String getSavegameName(GameId id);
static void loadEntryHeader(Common::InSaveFile *save, SavegameEntryHeader* header);
static bool validateMainHeader(const SavegameMainHeader &header);
static bool validateEntryHeader(const SavegameEntryHeader &header);
};
} // End of namespace LastExpress
#endif // LASTEXPRESS_SAVELOAD_H
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