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/* GNU GO - the game of Go (Wei-Chi) Version 1.1 last revised 3-1-89 Copyright (C) Free Software Foundation, Inc. written by Man L. Li modified by Wayne Iba documented by Bob Webber */ /* 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 - version 1. 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 in file COPYING 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., 675 Mass Ave, Cambridge, MA 02139, USA. Please report any bug/fix, modification, suggestion to mail address: Man L. Li Dept. of Computer Science University of Houston 4800 Calhoun Road Houston, TX 77004 e-mail address: manli@cs.uh.edu (Internet) coscgbn@uhvax1.bitnet (BITNET) 70070,404 (CompuServe) */ #include <stdio.h> #define EMPTY 0 extern unsigned char p[19][19], ml[19][19]; extern int lib; count(i, j, color) /* count liberty of color piece at i, j */ int i, j, color; { /* set current piece as marked */ ml[i][j] = EMPTY; /* check North neighbor */ if (i != EMPTY) { if ((p[i - 1][j] == EMPTY) && ml[i - 1][j]) { ++lib; ml[i - 1][j] = EMPTY; } else if ((p[i - 1][j] == color) && ml[i - 1][j]) count(i - 1, j, color); } /* check South neighbor */ if (i != 18) { if ((p[i + 1][j] == EMPTY) && ml[i + 1][j]) { ++lib; ml[i + 1][j] = EMPTY; } else if ((p[i + 1][j] == color) && ml[i + 1][j]) count(i + 1, j, color); } /* check West neighbor */ if (j != EMPTY) { if ((p[i][j - 1] == EMPTY) && ml[i][j - 1]) { ++lib; ml[i][j - 1] = EMPTY; } else if ((p[i][j - 1] == color) && ml[i][j - 1]) count(i, j - 1, color); } /* check East neighbor */ if (j != 18) { if ((p[i][j + 1] == EMPTY) && ml[i][j + 1]) { ++lib; ml[i][j + 1] = EMPTY; } else if ((p[i][j + 1] == color) && ml[i][j + 1]) count(i, j + 1, color); } } /* end count */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.