xref: /openbsd/games/trek/setwarp.c (revision 404b540a)
1 /*	$OpenBSD: setwarp.c,v 1.3 2003/06/03 03:01:42 millert Exp $	*/
2 /*	$NetBSD: setwarp.c,v 1.3 1995/04/22 10:59:27 cgd 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 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)setwarp.c	8.1 (Berkeley) 5/31/93";
36 #else
37 static char rcsid[] = "$OpenBSD: setwarp.c,v 1.3 2003/06/03 03:01:42 millert Exp $";
38 #endif
39 #endif /* not lint */
40 
41 #include <stdio.h>
42 #include "trek.h"
43 #include "getpar.h"
44 
45 /*
46 **  SET WARP FACTOR
47 **
48 **	The warp factor is set for future move commands.  It is
49 **	checked for consistancy.
50 */
51 
52 void
53 setwarp(v)
54 	int v;
55 {
56 	double	warpfac;
57 
58 	warpfac = getfltpar("Warp factor");
59 	if (warpfac < 0.0)
60 		return;
61 	if (warpfac < 1.0)
62 	{
63 		printf("Minimum warp speed is 1.0\n");
64 		return;
65 	}
66 	if (warpfac > 10.0)
67 	{
68 		printf("Maximum speed is warp 10.0\n");
69 		return;
70 	}
71 	if (warpfac > 6.0)
72 		printf("Damage to warp engines may occur above warp 6.0\n");
73 	Ship.warp = warpfac;
74 	Ship.warp2 = Ship.warp * warpfac;
75 	Ship.warp3 = Ship.warp2 * warpfac;
76 }
77