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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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#ifndef GLK_ALAN3_STATE
#define GLK_ALAN3_STATE

/* Header file for instruction state and undo handling in Alan interpreter */

#include "glk/alan3/types.h"

namespace Glk {
namespace Alan3 {

/* DATA */
struct game_state;
typedef struct game_state GameState;

/* FUNCTIONS */
extern bool anySavedState(void);
extern void initStateStack(void);
extern void rememberGameState(void);
extern void forgetGameState(void);
extern void rememberCommands(void);
extern void recallGameState(void);
extern char *recreatePlayerCommand(void);
extern void terminateStateStack(void);
extern void deallocateGameState(GameState *gameState);

} // End of namespace Alan3
} // End of namespace Glk

#endif