date and time created 83/03/23 15:01:54 by mckusick
[unix-history] / usr / src / games / trek / getcodi.c
CommitLineData
6736ce78
KM
1#ifndef lint
2static char sccsid[] = "@(#)getcodi.c 4.1 (Berkeley) %G%";
3#endif not lint
4
5# include "getpar.h"
6
7/*
8** get course and distance
9**
10** The user is asked for a course and distance. This is used by
11** move, impulse, and some of the computer functions.
12**
13** The return value is zero for success, one for an invalid input
14** (meaning to drop the request).
15*/
16
17getcodi(co, di)
18int *co;
19float *di;
20{
21
22 *co = getintpar("Course");
23
24 /* course must be in the interval [0, 360] */
25 if (*co < 0 || *co > 360)
26 return (1);
27 *di = getfltpar("Distance");
28
29 /* distance must be in the interval [0, 15] */
30 if (*di <= 0.0 || *di > 15.0)
31 return (1);
32
33 /* good return */
34 return (0);
35}