scummvm/engines/mutationofjb/metaengine.cpp

88 lines
2.8 KiB
C++

/* 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 "mutationofjb/mutationofjb.h"
#include "common/config-manager.h"
#include "common/system.h"
#include "common/savefile.h"
#include "common/serializer.h"
#include "engines/advancedDetector.h"
class MutationOfJBMetaEngine : public AdvancedMetaEngine {
public:
const char *getName() const override {
return "mutationofjb";
}
Common::Error createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const override {
*engine = new MutationOfJB::MutationOfJBEngine(syst, desc);
return Common::kNoError;
}
bool hasFeature(MetaEngineFeature f) const override {
if (f == kSupportsListSaves || f == kSimpleSavesNames || f == kSupportsLoadingDuringStartup) {
return true;
}
return false;
}
int getMaximumSaveSlot() const override {
return 999;
}
SaveStateList listSaves(const char *target) const override {
Common::SaveFileManager *const saveFileMan = g_system->getSavefileManager();
Common::StringArray filenames;
Common::String pattern = target;
pattern += ".###";
filenames = saveFileMan->listSavefiles(pattern);
SaveStateList saveList;
int slotNo = 0;
for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
// Obtain the last 3 digits of the filename, since they correspond to the save slot
slotNo = atoi(file->c_str() + file->size() - 3);
Common::InSaveFile *const in = saveFileMan->openForLoading(*file);
if (in) {
Common::Serializer sz(in, nullptr);
MutationOfJB::SaveHeader saveHdr;
if (saveHdr.sync(sz)) {
saveList.push_back(SaveStateDescriptor(slotNo, saveHdr._description));
}
}
}
return saveList;
}
};
#if PLUGIN_ENABLED_DYNAMIC(MUTATIONOFJB)
REGISTER_PLUGIN_DYNAMIC(MUTATIONOFJB, PLUGIN_TYPE_ENGINE, MutationOfJBMetaEngine);
#else
REGISTER_PLUGIN_STATIC(MUTATIONOFJB, PLUGIN_TYPE_ENGINE, MutationOfJBMetaEngine);
#endif