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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], l[19][19]; extern int mymove, umove; extern int lib; extern int uik, ujk; /* piece captured */ suicide(i, j) /* check for suicide move of opponent at p[i][j] */ int i, j; { int m, n, k; /* check liberty of new move */ lib = 0; countlib(i, j, umove); if (lib == 0) /* new move is suicide then check if kill my pieces and Ko possibility */ { /* assume alive */ p[i][j] = umove; /* check my pieces */ eval(mymove); k = 0; for (m = 0; m < 19; m++) for (n = 0; n < 19; n++) /* count pieces will be killed */ if ((p[m][n] == mymove) && !l[m][n]) ++k; if ((k == 0) || (k == 1 && ((i == uik) && (j == ujk)))) /* either no effect on my pieces or an illegal Ko take back */ { p[i][j] = EMPTY; /* restore to open */ return 1; } else /* good move */ return 0; } else /* valid move */ return 0; } /* end suicide */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.