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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/savefile.h"
#include "common/textconsole.h"
#include "tucker/tucker.h"
namespace Tucker {
enum {
kCurrentGameStateVersion = 1
};
Common::String generateGameStateFileName(const char *target, int slot, bool prefixOnly) {
Common::String name(target);
if (prefixOnly) {
name += ".*";
} else {
name += Common::String::format(".%d", slot);
}
return name;
}
static void saveOrLoadInt(Common::WriteStream &stream, int &i) {
stream.writeSint32LE(i);
}
static void saveOrLoadInt(Common::ReadStream &stream, int &i) {
i = stream.readSint32LE();
}
template <class S>
void TuckerEngine::saveOrLoadGameStateData(S &s) {
for (int i = 0; i < kFlagsTableSize; ++i) {
saveOrLoadInt(s, _flagsTable[i]);
}
for (int i = 0; i < 40; ++i) {
saveOrLoadInt(s, _inventoryObjectsList[i]);
}
for (int i = 0; i < 50; ++i) {
saveOrLoadInt(s, _inventoryItemsState[i]);
}
for (int i = 0; i < 50; ++i) {
saveOrLoadInt(s, _panelObjectsOffsetTable[i]);
}
saveOrLoadInt(s, _mainSpritesBaseOffset);
saveOrLoadInt(s, _selectedObject.xPos);
saveOrLoadInt(s, _selectedObject.yPos);
saveOrLoadInt(s, _locationNum);
saveOrLoadInt(s, _xPosCurrent);
saveOrLoadInt(s, _yPosCurrent);
saveOrLoadInt(s, _inventoryObjectsCount);
saveOrLoadInt(s, _inventoryObjectsOffset);
}
Common::Error TuckerEngine::loadGameState(int num) {
Common::Error ret = Common::kNoError;
Common::String gameStateFileName = generateGameStateFileName(_targetName.c_str(), num);
Common::InSaveFile *f = _saveFileMan->openForLoading(gameStateFileName);
if (f) {
uint16 version = f->readUint16LE();
if (version < kCurrentGameStateVersion) {
warning("Unsupported gamestate version %d (slot %d)", version, num);
} else {
f->skip(2);
saveOrLoadGameStateData(*f);
if (f->err() || f->eos()) {
warning("Can't read file '%s'", gameStateFileName.c_str());
ret = Common::kReadingFailed;
} else {
_nextLocationNum = _locationNum;
setBlackPalette();
loadBudSpr(0);
_forceRedrawPanelItems = true;
}
}
delete f;
}
return ret;
}
Common::Error TuckerEngine::saveGameState(int num, const Common::String &description) {
Common::Error ret = Common::kNoError;
Common::String gameStateFileName = generateGameStateFileName(_targetName.c_str(), num);
Common::OutSaveFile *f = _saveFileMan->openForSaving(gameStateFileName);
if (f) {
f->writeUint16LE(kCurrentGameStateVersion);
f->writeUint16LE(0);
saveOrLoadGameStateData(*f);
f->finalize();
if (f->err()) {
warning("Can't write file '%s'", gameStateFileName.c_str());
ret = Common::kWritingFailed;
}
delete f;
}
return ret;
}
bool TuckerEngine::canLoadGameStateCurrently() {
return !_player && _cursorType < 2;
}
bool TuckerEngine::canSaveGameStateCurrently() {
return !_player && _cursorType < 2;
}
} // namespace Tucker
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