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6736ce78 KM |
1 | #ifndef lint |
2 | static 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 | ||
17 | getcodi(co, di) | |
18 | int *co; | |
19 | float *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 | } |