* Copyright (c) 1980 Regents of the University of California.
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
static char sccsid
[] = "@(#)rnd_pos.c 5.3 (Berkeley) %G%";
# define IS_SAME(p,y,x) ((p).y != -1 && (p).y == y && (p).x == x)
* Pick a random, unoccupied position
pos
.y
= rnd(Y_FIELDSIZE
- 1) + 1;
pos
.x
= rnd(X_FIELDSIZE
- 1) + 1;
} while (Field
[pos
.y
][pos
.x
] != 0);