NetBSD/games/trek/ranf.c
dholland 3ae4e09ad9 Use random() instead of rand(), so we get something like random
numbers out.

This changes the "tournament codes"; that is, the same code will give
you a different game now from what it used to. (This is because the
codes are basically random seeds.) I really really doubt anyone cares
about this, especially since the tournament feature appears to be
undocumented.
2009-05-25 00:37:27 +00:00

59 lines
2.0 KiB
C

/* $NetBSD: ranf.c,v 1.7 2009/05/25 00:37:27 dholland Exp $ */
/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)ranf.c 8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: ranf.c,v 1.7 2009/05/25 00:37:27 dholland Exp $");
#endif
#endif /* not lint */
#include <stdio.h>
#include <stdlib.h>
#include "trek.h"
int
ranf(int max)
{
if (max <= 0)
return (0);
return (random() % max);
}
double
franf(void)
{
return random() / (double)RANDOM_MAX;
}