scummvm/engines/queen/metaengine.cpp

131 lines
3.8 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 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 "engines/advancedDetector.h"
#include "common/savefile.h"
#include "common/system.h"
#include "common/translation.h"
#include "queen/queen.h"
#include "queen/resource.h"
#include "queen/detection.h"
static const ADExtraGuiOptionsMap optionsList[] = {
{
GAMEOPTION_ALT_INTRO,
{
_s("Alternative intro"),
_s("Use an alternative game intro (CD version only)"),
"alt_intro",
false,
0,
0
}
},
{
GAMEOPTION_ALT_FONT,
{
_s("Improved font"),
_s("Use an easier to read custom font"),
"alt_font",
false,
0,
0
}
},
AD_EXTRA_GUI_OPTIONS_TERMINATOR
};
class QueenMetaEngine : public AdvancedMetaEngine {
public:
const char *getName() const override {
return "queen";
}
const ADExtraGuiOptionsMap *getAdvancedExtraGuiOptions() const override {
return optionsList;
}
bool hasFeature(MetaEngineFeature f) const override;
Common::Error createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const override;
SaveStateList listSaves(const char *target) const override;
int getMaximumSaveSlot() const override { return 99; }
void removeSaveState(const char *target, int slot) const override;
int getAutosaveSlot() const override { return 99; }
};
bool QueenMetaEngine::hasFeature(MetaEngineFeature f) const {
return
(f == kSupportsListSaves) ||
(f == kSupportsLoadingDuringStartup) ||
(f == kSupportsDeleteSave);
}
SaveStateList QueenMetaEngine::listSaves(const char *target) const {
Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
Common::StringArray filenames;
char saveDesc[32];
Common::String pattern("queen.s##");
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 <= 99) {
Common::InSaveFile *in = saveFileMan->openForLoading(*file);
if (in) {
for (int i = 0; i < 4; i++)
in->readUint32BE();
in->read(saveDesc, 32);
saveList.push_back(SaveStateDescriptor(this, slotNum, saveDesc));
delete in;
}
}
}
// Sort saves based on slot number.
Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
return saveList;
}
void QueenMetaEngine::removeSaveState(const char *target, int slot) const {
Common::String filename = Common::String::format("queen.s%02d", slot);
g_system->getSavefileManager()->removeSavefile(filename);
}
Common::Error QueenMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
*engine = new Queen::QueenEngine(syst); //FIXME , (const Queen::QueenGameDescription *)desc);
return Common::kNoError;
}
#if PLUGIN_ENABLED_DYNAMIC(QUEEN)
REGISTER_PLUGIN_DYNAMIC(QUEEN, PLUGIN_TYPE_ENGINE, QueenMetaEngine);
#else
REGISTER_PLUGIN_STATIC(QUEEN, PLUGIN_TYPE_ENGINE, QueenMetaEngine);
#endif