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 "base/plugins.h"

#include "common/config-manager.h"
#include "engines/advancedDetector.h"
#include "common/system.h"
#include "common/textconsole.h"
#include "common/translation.h"

#include "backends/keymapper/action.h"
#include "backends/keymapper/keymap.h"
#include "backends/keymapper/standard-actions.h"

#include "parallaction/parallaction.h"
#include "parallaction/detection.h"

namespace Parallaction {

int Parallaction::getGameType() const { return _gameDescription->gameType; }
uint32 Parallaction::getFeatures() const { return _gameDescription->features; }
Common::Language Parallaction::getLanguage() const { return _gameDescription->desc.language; }
Common::Platform Parallaction::getPlatform() const { return _gameDescription->desc.platform; }

} // End of namespace Parallaction

class ParallactionMetaEngine : public AdvancedMetaEngine<Parallaction::PARALLACTIONGameDescription> {
public:
	const char *getName() const override {
		return "parallaction";
	}

	bool hasFeature(MetaEngineFeature f) const override;
	Common::Error createInstance(OSystem *syst, Engine **engine, const Parallaction::PARALLACTIONGameDescription *desc) const override;
	Common::KeymapArray initKeymaps(const char *target) const override;

	SaveStateList listSaves(const char *target) const override;
	int getMaximumSaveSlot() const override;
	bool removeSaveState(const char *target, int slot) const override;
	Common::String getSavegameFile(int saveGameIdx, const char *target) const override {
		if (!target)
			target = getName();
		const Common::String prefix = ConfMan.getDomain(target)->getVal("gameid");
		if (saveGameIdx == kSavegameFilePattern)
			return prefix + ".###";
		else
			return prefix + Common::String::format(".%03d", saveGameIdx);
	}
};

bool ParallactionMetaEngine::hasFeature(MetaEngineFeature f) const {
	return
		(f == kSupportsListSaves) ||
		(f == kSimpleSavesNames) ||
		(f == kSupportsDeleteSave);
}

bool Parallaction::Parallaction::hasFeature(EngineFeature f) const {
	return
		(f == kSupportsReturnToLauncher);
}

Common::Error ParallactionMetaEngine::createInstance(OSystem *syst, Engine **engine, const Parallaction::PARALLACTIONGameDescription *gd) const {
	switch (gd->gameType) {
	case Parallaction::GType_Nippon:
		*engine = new Parallaction::Parallaction_ns(syst, gd);
		break;
	case Parallaction::GType_BRA:
		*engine = new Parallaction::Parallaction_br(syst, gd);
		break;
	default:
		return Common::kUnsupportedGameidError;
	}

	return Common::kNoError;
}

Common::KeymapArray ParallactionMetaEngine::initKeymaps(const char *target) const {
	using namespace Common;

	Common::String gameId = ConfMan.get("gameid", target);
	Keymap *engineKeymap;

	if (gameId == "nippon")
		engineKeymap = new Keymap(Keymap::kKeymapTypeGame, "parallaction", "Nippon Safes, Inc.");
	else if (gameId == "bra")
		engineKeymap = new Keymap(Keymap::kKeymapTypeGame, "parallaction", "The Big Red Adventure");
	else
		return AdvancedMetaEngine::initKeymaps(target);

	Action *act;

	act = new Action(kStandardActionLeftClick, _("Left Click"));
	act->setLeftClickEvent();
	act->addDefaultInputMapping("MOUSE_LEFT");
	act->addDefaultInputMapping("JOY_A");
	engineKeymap->addAction(act);

	act = new Action(kStandardActionRightClick, _("Right Click"));
	act->setRightClickEvent();
	act->addDefaultInputMapping("MOUSE_RIGHT");
	act->addDefaultInputMapping("JOY_B");
	engineKeymap->addAction(act);

	if (gameId == "nippon") {
		act = new Action(kStandardActionLoad, _("Load"));
		act->setKeyEvent(KeyState(KEYCODE_l, 'l'));
		act->addDefaultInputMapping("l");
		act->addDefaultInputMapping("JOY_LEFT_SHOULDER");
		engineKeymap->addAction(act);

		act = new Action(kStandardActionSave, _("Save"));
		act->setKeyEvent(KeyState(KEYCODE_s, 's'));
		act->addDefaultInputMapping("s");
		act->addDefaultInputMapping("JOY_RIGHT_SHOULDER");
		engineKeymap->addAction(act);
	} else if (gameId == "bra") {
		act = new Action(kStandardActionOpenMainMenu, _("Game menu"));
		act->setKeyEvent(KeyState(KEYCODE_F5, ASCII_F5));
		act->addDefaultInputMapping("F5");
		act->addDefaultInputMapping("JOY_LEFT_SHOULDER");
		engineKeymap->addAction(act);

		act = new Action("YES", _("Yes"));
		act->setKeyEvent(KeyState(KEYCODE_y, 'y'));
		act->addDefaultInputMapping("y");
		act->addDefaultInputMapping("JOY_Y");
		engineKeymap->addAction(act);

		act = new Action("NO", _("No"));
		act->setKeyEvent(KeyState(KEYCODE_n, 'n'));
		act->addDefaultInputMapping("n");
		act->addDefaultInputMapping("JOY_X");
		engineKeymap->addAction(act);
	}

	return Keymap::arrayOf(engineKeymap);
}

SaveStateList ParallactionMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();

	Common::StringArray filenames = saveFileMan->listSavefiles(getSavegameFilePattern(target));

	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) {
				Common::String saveDesc = in->readLine();
				saveList.push_back(SaveStateDescriptor(this, slotNum, saveDesc));
				delete in;
			}
		}
	}

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

int ParallactionMetaEngine::getMaximumSaveSlot() const { return 99; }

bool ParallactionMetaEngine::removeSaveState(const char *target, int slot) const {
	return g_system->getSavefileManager()->removeSavefile(getSavegameFile(slot, target));
}

#if PLUGIN_ENABLED_DYNAMIC(PARALLACTION)
	REGISTER_PLUGIN_DYNAMIC(PARALLACTION, PLUGIN_TYPE_ENGINE, ParallactionMetaEngine);
#else
	REGISTER_PLUGIN_STATIC(PARALLACTION, PLUGIN_TYPE_ENGINE, ParallactionMetaEngine);
#endif