xref: /dragonfly/games/trek/setwarp.c (revision d19ef5a2)
1 /*	@(#)setwarp.c	8.1 (Berkeley) 5/31/93				*/
2 /*	$NetBSD: setwarp.c,v 1.8 2009/05/24 19:18:44 dholland Exp $	*/
3 
4 /*
5  * Copyright (c) 1980, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #include <stdio.h>
34 #include "trek.h"
35 #include "getpar.h"
36 
37 /*
38 **  SET WARP FACTOR
39 **
40 **	The warp factor is set for future move commands.  It is
41 **	checked for consistancy.
42 */
43 
44 /*ARGSUSED*/
45 void
46 setwarp(int v __unused)
47 {
48 	double	warpfac;
49 
50 	warpfac = getfltpar("Warp factor");
51 	if (warpfac < 0.0)
52 		return;
53 	if (warpfac < 1.0) {
54 		printf("Minimum warp speed is 1.0\n");
55 		return;
56 	}
57 	if (warpfac > 10.0) {
58 		printf("Maximum speed is warp 10.0\n");
59 		return;
60 	}
61 	if (warpfac > 6.0)
62 		printf("Damage to warp engines may occur above warp 6.0\n");
63 	Ship.warp = warpfac;
64 	Ship.warp2 = Ship.warp * warpfac;
65 	Ship.warp3 = Ship.warp2 * warpfac;
66 }
67