scummvm/engines/composer/metaengine.cpp

140 lines
4.4 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 "base/plugins.h"
#include "common/savefile.h"
#include "common/serializer.h"
#include "common/str-array.h"
#include "engines/advancedDetector.h"
#include "composer/composer.h"
#include "composer/detection.h"
namespace Composer {
int ComposerEngine::getGameType() const {
return _gameDescription->gameType;
}
const char *ComposerEngine::getGameId() const {
return _gameDescription->desc.gameId;
}
uint32 ComposerEngine::getFeatures() const {
return _gameDescription->desc.flags;
}
Common::Language ComposerEngine::getLanguage() const {
return _gameDescription->desc.language;
}
Common::Platform ComposerEngine::getPlatform() const {
return _gameDescription->desc.platform;
}
bool ComposerEngine::loadDetectedConfigFile(Common::INIFile &configFile) const {
const ADGameFileDescription *res = _gameDescription->desc.filesDescriptions;
while (res->fileName != NULL) {
if (res->fileType == GAME_CONFIGFILE) {
return configFile.loadFromFile(res->fileName);
}
res++;
}
// default config file name
return configFile.loadFromFile("book.ini") || configFile.loadFromFile("book.mac");
}
} // End of namespace Composer
class ComposerMetaEngine : public AdvancedMetaEngine {
public:
const char *getName() const override {
return "composer";
}
Common::Error createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const override;
bool hasFeature(MetaEngineFeature f) const override;
int getMaximumSaveSlot() const override;
SaveStateList listSaves(const char* target) const override;
};
Common::Error ComposerMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
*engine = new Composer::ComposerEngine(syst, (const Composer::ComposerGameDescription *)desc);
return Common::kNoError;
}
bool ComposerMetaEngine::hasFeature(MetaEngineFeature f) const {
return ((f == kSupportsListSaves) || (f == kSupportsLoadingDuringStartup));
}
Common::String getSaveName(Common::InSaveFile *in) {
Common::Serializer ser(in, NULL);
Common::String name;
uint32 tmp;
ser.syncAsUint32LE(tmp);
ser.syncAsUint32LE(tmp);
ser.syncString(name);
return name;
}
int ComposerMetaEngine::getMaximumSaveSlot() const {
return 99;
}
SaveStateList ComposerMetaEngine::listSaves(const char *target) const {
Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
Common::StringArray filenames;
Common::String saveDesc;
Common::String pattern = Common::String::format("%s.##", target);
filenames = saveFileMan->listSavefiles(pattern);
SaveStateList saveList;
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
int slotNum = atoi(file->c_str() + file->size() - 2);
if (slotNum >= 0 && slotNum <= 99) {
Common::InSaveFile *in = saveFileMan->openForLoading(*file);
if (in) {
saveDesc = getSaveName(in);
saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
delete in;
}
}
}
Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
return saveList;
}
bool Composer::ComposerEngine::hasFeature(EngineFeature f) const {
return (f == kSupportsReturnToLauncher
|| f == kSupportsSavingDuringRuntime
|| f == kSupportsLoadingDuringRuntime);
}
#if PLUGIN_ENABLED_DYNAMIC(COMPOSER)
REGISTER_PLUGIN_DYNAMIC(COMPOSER, PLUGIN_TYPE_ENGINE, ComposerMetaEngine);
#else
REGISTER_PLUGIN_STATIC(COMPOSER, PLUGIN_TYPE_ENGINE, ComposerMetaEngine);
#endif