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/*
* ksokoban - a Sokoban game for KDE
* Copyright (C) 1998 Anders Widell <awl@hem.passagen.se>
*
* 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 HISTORY_H
#define HISTORY_H
#include <qptrlist.h>
#include <qstring.h>
#include "Move.h"
class MoveSequence;
/**
* Maintains movement history
*
* @short Maintains game movement history
* @author Anders Widell <d95-awi@nada.kth.se>
* @version 0.1
* @see PlayField
*/
class History {
private:
QPtrList<Move> past_;
QPtrList<Move> future_;
protected:
public:
History();
/**
* Add a move to the history. Deletes all currently undone moves.
*/
void add(Move *_m);
/**
* Clear the history and delete all Move objects stored in it.
*/
void clear();
void save(QString &_str);
const char *load(LevelMap *map, const char *_str);
bool redo(LevelMap *map);
MoveSequence *deferRedo(LevelMap *map);
bool undo(LevelMap *map);
MoveSequence *deferUndo(LevelMap *map);
};
#endif /* HISTORY_H */
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