1 /*
2  * Ben Lynn
3  */
4 /*
5 Copyright (C) 2004 Benjamin Lynn (blynn@cs.stanford.edu)
6 
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License
9 as published by the Free Software Foundation; either version 2
10 of the License, or (at your option) any later version.
11 
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 GNU General Public License for more details.
16 
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
20 */
21 #ifndef GAME_H
22 #define GAME_H
23 
24 enum {
25     boardmaxw = 50,
26     boardmaxh = 50,
27 };
28 extern int boardw, boardh;
29 extern int board[boardmaxw][boardmaxh];
30 extern int neighbourcount[boardmaxw][boardmaxh];
31 extern int flags[boardmaxw][boardmaxh];
32 extern int sourcex, sourceytop, sourceybottom;
33 extern int wrap_flag;
34 extern int no_fourway;
35 extern int game_won;
36 
37 typedef struct {
38     int x, y;
39 } coord_s;
40 
41 extern coord_s dir[4];
42 
43 // 0 = up, 1 = right, 2 = down, 3 = left
44 //    0
45 //    |
46 // 3--+--1
47 //    |
48 //    2
49 
50 void clear_flags();
51 void generate_maze();
52 int rotatecw(int d, int n);
53 void scramble();
54 void check_live();
55 void add_dir(int *x, int *y, int x1, int y1, int d);
56 #endif //GAME_H
57