xref: /netbsd/games/trek/setwarp.c (revision bf9ec67e)
1 /*	$NetBSD: setwarp.c,v 1.5 1999/09/08 21:45:33 jsm Exp $	*/
2 
3 /*
4  * Copyright (c) 1980, 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. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 #ifndef lint
38 #if 0
39 static char sccsid[] = "@(#)setwarp.c	8.1 (Berkeley) 5/31/93";
40 #else
41 __RCSID("$NetBSD: setwarp.c,v 1.5 1999/09/08 21:45:33 jsm Exp $");
42 #endif
43 #endif /* not lint */
44 
45 #include <stdio.h>
46 #include "trek.h"
47 #include "getpar.h"
48 
49 /*
50 **  SET WARP FACTOR
51 **
52 **	The warp factor is set for future move commands.  It is
53 **	checked for consistancy.
54 */
55 
56 /*ARGSUSED*/
57 void
58 setwarp(v)
59 	int v __attribute__((__unused__));
60 {
61 	double	warpfac;
62 
63 	warpfac = getfltpar("Warp factor");
64 	if (warpfac < 0.0)
65 		return;
66 	if (warpfac < 1.0) {
67 		printf("Minimum warp speed is 1.0\n");
68 		return;
69 	}
70 	if (warpfac > 10.0) {
71 		printf("Maximum speed is warp 10.0\n");
72 		return;
73 	}
74 	if (warpfac > 6.0)
75 		printf("Damage to warp engines may occur above warp 6.0\n");
76 	Ship.warp = warpfac;
77 	Ship.warp2 = Ship.warp * warpfac;
78 	Ship.warp3 = Ship.warp2 * warpfac;
79 }
80