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rnd_pos.c revision 1.5 
      1  1.5    agc /*	$NetBSD: rnd_pos.c,v 1.5 2003/08/07 09:37:37 agc Exp $	*/
      2  1.3    cgd 
      3  1.1    cgd /*
      4  1.3    cgd  * Copyright (c) 1980, 1993
      5  1.3    cgd  *	The Regents of the University of California.  All rights reserved.
      6  1.1    cgd  *
      7  1.1    cgd  * Redistribution and use in source and binary forms, with or without
      8  1.1    cgd  * modification, are permitted provided that the following conditions
      9  1.1    cgd  * are met:
     10  1.1    cgd  * 1. Redistributions of source code must retain the above copyright
     11  1.1    cgd  *    notice, this list of conditions and the following disclaimer.
     12  1.1    cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1    cgd  *    notice, this list of conditions and the following disclaimer in the
     14  1.1    cgd  *    documentation and/or other materials provided with the distribution.
     15  1.5    agc  * 3. Neither the name of the University nor the names of its contributors
     16  1.1    cgd  *    may be used to endorse or promote products derived from this software
     17  1.1    cgd  *    without specific prior written permission.
     18  1.1    cgd  *
     19  1.1    cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  1.1    cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  1.1    cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  1.1    cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  1.1    cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  1.1    cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  1.1    cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  1.1    cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  1.1    cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  1.1    cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  1.1    cgd  * SUCH DAMAGE.
     30  1.1    cgd  */
     31  1.1    cgd 
     32  1.4  lukem #include <sys/cdefs.h>
     33  1.1    cgd #ifndef lint
     34  1.3    cgd #if 0
     35  1.3    cgd static char sccsid[] = "@(#)rnd_pos.c	8.1 (Berkeley) 5/31/93";
     36  1.3    cgd #else
     37  1.5    agc __RCSID("$NetBSD: rnd_pos.c,v 1.5 2003/08/07 09:37:37 agc Exp $");
     38  1.3    cgd #endif
     39  1.1    cgd #endif /* not lint */
     40  1.1    cgd 
     41  1.1    cgd # include	"robots.h"
     42  1.1    cgd 
     43  1.1    cgd # define	IS_SAME(p,y,x)	((p).y != -1 && (p).y == y && (p).x == x)
     44  1.1    cgd 
     45  1.1    cgd /*
     46  1.1    cgd  * rnd_pos:
     47  1.1    cgd  *	Pick a random, unoccupied position
     48  1.1    cgd  */
     49  1.1    cgd COORD *
     50  1.1    cgd rnd_pos()
     51  1.1    cgd {
     52  1.1    cgd 	static COORD	pos;
     53  1.1    cgd 	static int	call = 0;
     54  1.1    cgd 
     55  1.1    cgd 	do {
     56  1.1    cgd 		pos.y = rnd(Y_FIELDSIZE - 1) + 1;
     57  1.1    cgd 		pos.x = rnd(X_FIELDSIZE - 1) + 1;
     58  1.1    cgd 		refresh();
     59  1.1    cgd 	} while (Field[pos.y][pos.x] != 0);
     60  1.1    cgd 	call++;
     61  1.1    cgd 	return &pos;
     62  1.1    cgd }
     63  1.1    cgd 
     64  1.4  lukem int
     65  1.1    cgd rnd(range)
     66  1.4  lukem 	int	range;
     67  1.1    cgd {
     68  1.1    cgd 
     69  1.1    cgd 	return rand() % range;
     70  1.1    cgd }
     71