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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.
*
*/
#include "common/scummsys.h"
#include "common/algorithm.h"
#include "common/memstream.h"
#include "common/substream.h"
#include "graphics/scaler.h"
#include "graphics/thumbnail.h"
#include "xeen/saves.h"
#include "xeen/files.h"
#include "xeen/xeen.h"
namespace Xeen {
SavesManager::SavesManager(const Common::String &targetName): _targetName(targetName),
_wonWorld(false), _wonDarkSide(false) {
File::_xeenSave = nullptr;
File::_darkSave = nullptr;
if (g_vm->getGameID() != GType_Clouds) {
File::_darkSave = new SaveArchive(g_vm->_party);
File::_darkSave->reset(File::_darkCc);
}
if (g_vm->getGameID() != GType_DarkSide) {
File::_xeenSave = new SaveArchive(g_vm->_party);
File::_xeenSave->reset(File::_xeenCc);
}
File::_currentSave = g_vm->getGameID() == GType_DarkSide ?
File::_darkSave : File::_xeenSave;
assert(File::_currentSave);
// Set any final initial values
Party &party = *g_vm->_party;
party.resetBlacksmithWares();
party._year = g_vm->getGameID() == GType_WorldOfXeen ? 610 : 850;
party._totalTime = 0;
}
SavesManager::~SavesManager() {
delete File::_xeenSave;
delete File::_darkSave;
}
const char *const SAVEGAME_STR = "XEEN";
#define SAVEGAME_STR_SIZE 6
bool SavesManager::readSavegameHeader(Common::InSaveFile *in, XeenSavegameHeader &header) {
char saveIdentBuffer[SAVEGAME_STR_SIZE + 1];
header._thumbnail = nullptr;
// Validate the header Id
in->read(saveIdentBuffer, SAVEGAME_STR_SIZE + 1);
if (strncmp(saveIdentBuffer, SAVEGAME_STR, SAVEGAME_STR_SIZE))
return false;
header._version = in->readByte();
if (header._version > XEEN_SAVEGAME_VERSION)
return false;
// Read in the string
header._saveName.clear();
char ch;
while ((ch = (char)in->readByte()) != '\0')
header._saveName += ch;
// Get the thumbnail
header._thumbnail = Graphics::loadThumbnail(*in);
if (!header._thumbnail)
return false;
// Read in save date/time
header._year = in->readSint16LE();
header._month = in->readSint16LE();
header._day = in->readSint16LE();
header._hour = in->readSint16LE();
header._minute = in->readSint16LE();
header._totalFrames = in->readUint32LE();
return true;
}
void SavesManager::writeSavegameHeader(Common::OutSaveFile *out, XeenSavegameHeader &header) {
EventsManager &events = *g_vm->_events;
Screen &screen = *g_vm->_screen;
// Write out a savegame header
out->write(SAVEGAME_STR, SAVEGAME_STR_SIZE + 1);
out->writeByte(XEEN_SAVEGAME_VERSION);
// Write savegame name
out->writeString(header._saveName);
out->writeByte('\0');
// Write a thumbnail of the screen
uint8 thumbPalette[768];
screen.getPalette(thumbPalette);
Graphics::Surface saveThumb;
::createThumbnail(&saveThumb, (const byte *)screen.getPixels(),
screen.w, screen.h, thumbPalette);
Graphics::saveThumbnail(*out, saveThumb);
saveThumb.free();
// Write out the save date/time
TimeDate td;
g_system->getTimeAndDate(td);
out->writeSint16LE(td.tm_year + 1900);
out->writeSint16LE(td.tm_mon + 1);
out->writeSint16LE(td.tm_mday);
out->writeSint16LE(td.tm_hour);
out->writeSint16LE(td.tm_min);
out->writeUint32LE(events.playTime());
}
Common::Error SavesManager::saveGameState(int slot, const Common::String &desc) {
Common::OutSaveFile *out = g_system->getSavefileManager()->openForSaving(
generateSaveName(slot));
if (!out)
return Common::kCreatingFileFailed;
// Push map and party data to the save archives
Map &map = *g_vm->_map;
map.saveMaze();
XeenSavegameHeader header;
header._saveName = desc;
writeSavegameHeader(out, header);
// Loop through saving the sides' save archives
SaveArchive *archives[2] = { File::_xeenSave, File::_darkSave };
for (int idx = 0; idx < 2; ++idx) {
if (archives[idx]) {
archives[idx]->save(*out);
} else {
// Side isn't present
out->writeUint32LE(0);
}
}
// Write out miscellaneous
FileManager &files = *g_vm->_files;
files.save(*out);
out->finalize();
delete out;
return Common::kNoError;
}
Common::Error SavesManager::loadGameState(int slot) {
EventsManager &events = *g_vm->_events;
FileManager &files = *g_vm->_files;
Map &map = *g_vm->_map;
Party &party = *g_vm->_party;
Common::InSaveFile *saveFile = g_system->getSavefileManager()->openForLoading(
generateSaveName(slot));
if (!saveFile)
return Common::kReadingFailed;
// Load the savaegame header
XeenSavegameHeader header;
if (!readSavegameHeader(saveFile, header))
error("Invalid savegame");
if (header._thumbnail) {
header._thumbnail->free();
delete header._thumbnail;
}
// Set the total play time
events.setPlayTime(header._totalFrames);
// Loop through loading the sides' save archives
SaveArchive *archives[2] = { File::_xeenSave, File::_darkSave };
for (int idx = 0; idx < 2; ++idx) {
uint fileSize = saveFile->readUint32LE();
if (archives[idx]) {
Common::SeekableSubReadStream arcStream(saveFile, saveFile->pos(),
saveFile->pos() + fileSize);
archives[idx]->load(arcStream);
} else {
assert(!fileSize);
}
}
// Read in miscellaneous
files.load(*saveFile);
// Load the new map
map.load(party._mazeId);
return Common::kNoError;
}
Common::String SavesManager::generateSaveName(int slot) {
return Common::String::format("%s.%03d", _targetName.c_str(), slot);
}
} // End of namespace Xeen
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