mirror of
https://github.com/libretro/scummvm.git
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138 lines
4.1 KiB
C++
138 lines
4.1 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "base/plugins.h"
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#include "common/system.h"
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#include "common/savefile.h"
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#include "engines/advancedDetector.h"
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#include "wage/wage.h"
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namespace Wage {
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const char *WageEngine::getGameFile() const {
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return _gameDescription->filesDescriptions[0].fileName;
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}
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} // End of namespace Wage
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class WageMetaEngine : public AdvancedMetaEngine {
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public:
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const char *getName() const override {
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return "wage";
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}
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Common::Error createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const override;
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bool hasFeature(MetaEngineFeature f) const override;
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SaveStateList listSaves(const char *target) const override;
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int getMaximumSaveSlot() const override;
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void removeSaveState(const char *target, int slot) const override;
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};
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bool WageMetaEngine::hasFeature(MetaEngineFeature f) const {
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return
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(f == kSupportsListSaves) ||
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(f == kSupportsLoadingDuringStartup) ||
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(f == kSupportsDeleteSave) ||
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(f == kSimpleSavesNames);
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}
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bool Wage::WageEngine::hasFeature(EngineFeature f) const {
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return
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(f == kSupportsReturnToLauncher) ||
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(f == kSupportsLoadingDuringRuntime) ||
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(f == kSupportsSavingDuringRuntime);
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}
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Common::Error WageMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
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*engine = new Wage::WageEngine(syst, desc);
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return Common::kNoError;
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}
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SaveStateList WageMetaEngine::listSaves(const char *target) const {
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const uint32 WAGEflag = MKTAG('W','A','G','E');
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Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
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Common::StringArray filenames;
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char saveDesc[128] = {0};
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Common::String pattern = target;
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pattern += ".###";
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filenames = saveFileMan->listSavefiles(pattern);
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SaveStateList saveList;
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for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
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// Obtain the last 3 digits of the filename, since they correspond to the save slot
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int slotNum = atoi(file->c_str() + file->size() - 3);
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if (slotNum >= 0 && slotNum <= 999) {
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Common::InSaveFile *in = saveFileMan->openForLoading(*file);
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if (in) {
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saveDesc[0] = 0;
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in->seek(in->size() - 8);
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uint32 offset = in->readUint32BE();
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uint32 type = in->readUint32BE();
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if (type == WAGEflag) {
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in->seek(offset);
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type = in->readUint32BE();
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if (type == WAGEflag) {
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in->read(saveDesc, 127);
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}
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}
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saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
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delete in;
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}
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}
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}
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// Sort saves based on slot number.
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Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
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return saveList;
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}
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int WageMetaEngine::getMaximumSaveSlot() const { return 999; }
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void WageMetaEngine::removeSaveState(const char *target, int slot) const {
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g_system->getSavefileManager()->removeSavefile(Common::String::format("%s.%03d", target, slot));
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}
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#if PLUGIN_ENABLED_DYNAMIC(WAGE)
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REGISTER_PLUGIN_DYNAMIC(WAGE, PLUGIN_TYPE_ENGINE, WageMetaEngine);
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#else
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REGISTER_PLUGIN_STATIC(WAGE, PLUGIN_TYPE_ENGINE, WageMetaEngine);
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#endif
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namespace Wage {
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bool WageEngine::canLoadGameStateCurrently() {
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return true;
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}
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bool WageEngine::canSaveGameStateCurrently() {
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return true;
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}
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} // End of namespace Wage
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