1 /* $NetBSD: getcodi.c,v 1.6 2009/05/24 19:18:44 dholland 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. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)getcodi.c 8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: getcodi.c,v 1.6 2009/05/24 19:18:44 dholland Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include "getpar.h"
42 #include "trek.h"
43
44 /*
45 ** get course and distance
46 **
47 ** The user is asked for a course and distance. This is used by
48 ** move, impulse, and some of the computer functions.
49 **
50 ** The return value is zero for success, one for an invalid input
51 ** (meaning to drop the request).
52 */
53
54 int
getcodi(int * co,double * di)55 getcodi(int *co, double *di)
56 {
57
58 *co = getintpar("Course");
59
60 /* course must be in the interval [0, 360] */
61 if (*co < 0 || *co > 360)
62 return (1);
63 *di = getfltpar("Distance");
64
65 /* distance must be in the interval [0, 15] */
66 if (*di <= 0.0 || *di > 15.0)
67 return (1);
68
69 /* good return */
70 return (0);
71 }
72