]> git.cameronkatri.com Git - bsdgames-darwin.git/blob - mille/roll.c
tetris: Use arc4random_uniform instead of modulo for better randomness
[bsdgames-darwin.git] / mille / roll.c
1 /* $NetBSD: roll.c,v 1.9 2009/05/25 23:34:50 dholland Exp $ */
2
3 /*
4 * Copyright (c) 1982, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)roll.c 8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: roll.c,v 1.9 2009/05/25 23:34:50 dholland Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include "mille.h"
42
43 /*
44 * This routine rolls ndie nside-sided dice.
45 *
46 * @(#)roll.c 1.1 (Berkeley) 4/1/82
47 *
48 */
49
50 int
51 roll(int ndie, int nsides)
52 {
53
54 int tot;
55
56 tot = 0;
57 while (ndie--)
58 tot += random() % nsides + 1;
59 return tot;
60 }