File indexing completed on 2021-12-21 12:50:21

0001 /*
0002  *  ksokoban - a Sokoban game by KDE
0003  *  Copyright (C) 1998  Anders Widell  <d95-awi@nada.kth.se>
0004  *
0005  *  This program is free software; you can redistribute it and/or modify
0006  *  it under the terms of the GNU General Public License as published by
0007  *  the Free Software Foundation; either version 2 of the License, or
0008  *  (at your option) any later version.
0009  *
0010  *  This program is distributed in the hope that it will be useful,
0011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
0012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0013  *  GNU General Public License for more details.
0014  *
0015  *  You should have received a copy of the GNU General Public License
0016  *  along with this program; if not, write to the Free Software
0017  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
0018  */
0019 
0020 #ifndef MAPDELTA_H
0021 #define MAPDELTA_H
0022 
0023 #include <assert.h>
0024 
0025 #include "Map.h"
0026 
0027 class MapDelta : private Map {
0028 public:
0029   MapDelta (Map *m);
0030 
0031   void start ();
0032   void end ();
0033 
0034   bool hasChanged (int x, int y) {
0035     assert (ended_);
0036     return map (x, y) == 1;
0037   }
0038 
0039 private:
0040   Map      *source_;
0041   bool      ended_;
0042 };
0043 
0044 #endif  /* MAPDELTA_H */