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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.
*
* $URL$
* $Id$
*
*/
#include "draci/draci.h"
#include "draci/saveload.h"
#include "common/serializer.h"
#include "common/savefile.h"
#include "common/system.h"
#include "graphics/scaler.h"
#include "graphics/thumbnail.h"
namespace Draci {
static const char *draciIdentString = "DRACI";
bool readSavegameHeader(Common::InSaveFile *in, DraciSavegameHeader &header) {
char saveIdentBuffer[6];
header.thumbnail = NULL;
// Validate the header Id
in->read(saveIdentBuffer, 6);
if (strcmp(saveIdentBuffer, draciIdentString))
return false;
header.version = in->readByte();
if (header.version != DRACI_SAVEGAME_VERSION)
return false;
// Read in the string
header.saveName.clear();
char ch;
while ((ch = (char)in->readByte()) != '\0') header.saveName += ch;
header.date = in->readUint32LE();
header.time = in->readUint16LE();
header.playtime = in->readUint32LE();
// Get the thumbnail
header.thumbnail = new Graphics::Surface();
if (!Graphics::loadThumbnail(*in, *header.thumbnail)) {
header.thumbnail->free();
delete header.thumbnail;
header.thumbnail = NULL;
return false;
}
return true;
}
void writeSavegameHeader(Common::OutSaveFile *out, const DraciSavegameHeader &header) {
// Write out a savegame header
out->write(draciIdentString, 6);
out->writeByte(DRACI_SAVEGAME_VERSION);
// Write savegame name
out->write(header.saveName.c_str(), header.saveName.size() + 1);
out->writeUint32LE(header.date);
out->writeUint16LE(header.time);
out->writeUint32LE(header.playtime);
// Create a thumbnail and save it
Graphics::saveThumbnail(*out);
}
Common::Error saveSavegameData(int saveGameIdx, const Common::String &saveName, DraciEngine &vm) {
const char *filename = vm.getSavegameFile(saveGameIdx);
Common::SaveFileManager *saveMan = g_system->getSavefileManager();
Common::OutSaveFile *f = saveMan->openForSaving(filename);
if (f == NULL)
return Common::kNoGameDataFoundError;
TimeDate curTime;
vm._system->getTimeAndDate(curTime);
// Save the savegame header
DraciSavegameHeader header;
header.saveName = saveName;
header.date = ((curTime.tm_mday & 0xFF) << 24) | (((curTime.tm_mon + 1) & 0xFF) << 16) | ((curTime.tm_year + 1900) & 0xFFFF);
header.time = ((curTime.tm_hour & 0xFF) << 8) | ((curTime.tm_min) & 0xFF);
header.playtime = vm._system->getMillis() / 1000 - vm._engineStartTime;
writeSavegameHeader(f, header);
if (f->err()) {
delete f;
saveMan->removeSavefile(filename);
return Common::kWritingFailed;
} else {
// Create the remainder of the savegame
Common::Serializer s(NULL, f);
vm._game->DoSync(s);
f->finalize();
delete f;
return Common::kNoError;
}
}
Common::Error loadSavegameData(int saveGameIdx, DraciEngine *vm) {
Common::String saveName;
Common::SaveFileManager *saveMan = g_system->getSavefileManager();
Common::InSaveFile *f = saveMan->openForLoading(vm->getSavegameFile(saveGameIdx));
if (f == NULL) {
return Common::kNoGameDataFoundError;
}
// Skip over the savegame header
DraciSavegameHeader header;
if (!readSavegameHeader(f, header)) {
return Common::kNoGameDataFoundError;
}
if (header.thumbnail) {
header.thumbnail->free();
delete header.thumbnail;
}
// Pre-processing
vm->_game->rememberRoomNumAsPrevious();
vm->_game->deleteObjectAnimations();
// Synchronise the remaining data of the savegame
Common::Serializer s(f, NULL);
vm->_game->DoSync(s);
delete f;
// Post-processing
vm->_game->scheduleEnteringRoomUsingGate(vm->_game->getRoomNum(), 0);
vm->_game->setRoomNum(vm->_game->getPreviousRoomNum());
vm->_game->setExitLoop(true);
vm->_game->setIsReloaded(true);
vm->_game->inventoryReload();
vm->_engineStartTime = vm->_system->getMillis() / 1000 - header.playtime;
return Common::kNoError;
}
} // End of namespace Draci
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