File: metaengine.cpp

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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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#include "common/system.h"

#include "engines/advancedDetector.h"

#include "pink/pink.h"

namespace Pink {

Common::Language PinkEngine::getLanguage() const {
	return _desc->language;
}

} // End of Namespace Pink

class PinkMetaEngine : public AdvancedMetaEngine {
public:
	const char *getName() const override {
		return "pink";
	}

	bool hasFeature(MetaEngineFeature f) const override;

	int getMaximumSaveSlot() const override { return 99; }
	SaveStateList listSaves(const char *target) const override;
	void removeSaveState(const char *target, int slot) const override;
	SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const override;

	Common::Error createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const override;
};

bool PinkMetaEngine::hasFeature(MetaEngineFeature f) const {
	return
		(f == kSupportsListSaves) ||
		(f == kSupportsDeleteSave) ||
		(f == kSavesSupportMetaInfo) ||
		(f == kSavesSupportThumbnail) ||
		(f == kSavesSupportCreationDate) ||
		(f == kSavesSupportPlayTime) ||
		(f == kSupportsLoadingDuringStartup);
}

SaveStateList PinkMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::String pattern = Common::String::format("%s.s##", target);
	Common::StringArray filenames = saveFileMan->listSavefiles(pattern);

	SaveStateList saveList;
	for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
		// Obtain the last 2 digits of the filename, since they correspond to the save slot
		int slotNum = atoi(file->c_str() + file->size() - 2);
		if (slotNum >= 0 && slotNum <= getMaximumSaveSlot()) {
			Common::ScopedPtr<Common::InSaveFile> in(saveFileMan->openForLoading(*file));
			if (in) {
				SaveStateDescriptor desc;
				desc.setSaveSlot(slotNum);
				if (Pink::readSaveHeader(*in.get(), desc))
					saveList.push_back(desc);
			}
		}
	}

	// Sort saves based on slot number.
	Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
	return saveList;
}

void PinkMetaEngine::removeSaveState(const char *target, int slot) const {
	g_system->getSavefileManager()->removeSavefile(Pink::generateSaveName(slot, target));
}

SaveStateDescriptor PinkMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
	Common::ScopedPtr<Common::InSaveFile> f(g_system->getSavefileManager()->openForLoading(Pink::generateSaveName(slot, target)));

	if (f) {
		SaveStateDescriptor desc;
		if (!Pink::readSaveHeader(*f.get(), desc, false))
			return SaveStateDescriptor();

		return desc;
	}

	return SaveStateDescriptor();
}

Common::Error PinkMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
	*engine = new Pink::PinkEngine(syst, desc);
	return Common::kNoError;
}

#if PLUGIN_ENABLED_DYNAMIC(PINK)
	REGISTER_PLUGIN_DYNAMIC(PINK, PLUGIN_TYPE_ENGINE, PinkMetaEngine);
#else
	REGISTER_PLUGIN_STATIC(PINK, PLUGIN_TYPE_ENGINE, PinkMetaEngine);
#endif