/* 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/>.
 *
 */

/* Based on AdvSys interpreter 1.2 */

#ifndef GLK_ADVSYS_ADVSYS
#define GLK_ADVSYS_ADVSYS

#include "common/scummsys.h"
#include "glk/advsys/vm.h"

namespace Glk {
namespace AdvSys {

/**
 * AdvSys game interpreter
 */
class AdvSys : public VM {
private:
	/**
	 * Engine initialization
	 */
	bool initialize();

	/**
	 * Engine cleanup
	 */
	void deinitialize();

	/**
	 * Handle a single action
	 */
	bool singleAction();
public:
	/**
	 * Constructor
	 */
	AdvSys(OSystem *syst, const GlkGameDescription &gameDesc) : VM(syst, gameDesc) {}

	/**
	 * Run the game
	 */
	void runGame() override;

	/**
	 * Returns the running interpreter type
	 */
	InterpreterType getInterpreterType() const override {
		return INTERPRETER_ADVSYS;
	}

	/**
	 * Load a savegame from the passed Quetzal file chunk stream
	 */
	Common::Error readSaveData(Common::SeekableReadStream *rs) override;

	/**
	 * Save the game. The passed write stream represents access to the UMem chunk
	 * in the Quetzal save file that will be created
	 */
	Common::Error writeGameData(Common::WriteStream *ws) override;
};

} // End of namespace AdvSys
} // End of namespace Glk

#endif