386BSD 0.1 development
[unix-history] / usr / othersrc / games / trek / setwarp.c
CommitLineData
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WJ
1/*
2 * Copyright (c) 1980 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static char sccsid[] = "@(#)setwarp.c 5.4 (Berkeley) 6/1/90";
36#endif /* not lint */
37
38# include "trek.h"
39# include "getpar.h"
40
41/*
42** SET WARP FACTOR
43**
44** The warp factor is set for future move commands. It is
45** checked for consistancy.
46*/
47
48setwarp()
49{
50 double warpfac;
51
52 warpfac = getfltpar("Warp factor");
53 if (warpfac < 0.0)
54 return;
55 if (warpfac < 1.0)
56 return (printf("Minimum warp speed is 1.0\n"));
57 if (warpfac > 10.0)
58 return (printf("Maximum speed is warp 10.0\n"));
59 if (warpfac > 6.0)
60 printf("Damage to warp engines may occur above warp 6.0\n");
61 Ship.warp = warpfac;
62 Ship.warp2 = Ship.warp * warpfac;
63 Ship.warp3 = Ship.warp2 * warpfac;
64}