xref: /original-bsd/games/sail/parties.c (revision 42f60e33)
1 /*
2  * Copyright (c) 1983, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * %sccs.include.redist.c%
6  */
7 
8 #ifndef lint
9 static char sccsid[] = "@(#)parties.c	8.1 (Berkeley) 05/31/93";
10 #endif /* not lint */
11 
12 #include "externs.h"
13 
14 meleeing(from, to)
15 struct ship *from;
16 register struct ship *to;
17 {
18 	register struct BP *p = from->file->OBP;
19 	register struct BP *q = p + NBP;
20 
21 	for (; p < q; p++)
22 		if (p->turnsent && p->toship == to)
23 			return 1;
24 	return 0;
25 }
26 
27 boarding(from, isdefense)
28 register struct ship *from;
29 char isdefense;
30 {
31 	register struct BP *p = isdefense ? from->file->DBP : from->file->OBP;
32 	register struct BP *q = p + NBP;
33 
34 	for (; p < q; p++)
35 		if (p->turnsent)
36 			return 1;
37 	return 0;
38 }
39 
40 unboard(ship, to, isdefense)
41 register struct ship *ship, *to;
42 register char isdefense;
43 {
44 	register struct BP *p = isdefense ? ship->file->DBP : ship->file->OBP;
45 	register n;
46 
47 	for (n = 0; n < NBP; p++, n++)
48 		if (p->turnsent && (p->toship == to || isdefense || ship == to))
49 			Write(isdefense ? W_DBP : W_OBP, ship, 0, n, 0, 0, 0);
50 }
51