386BSD 0.1 development
[unix-history] / usr / othersrc / games / sail / parties.c
CommitLineData
65717166
WJ
1/*
2 * Copyright (c) 1983 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[] = "@(#)parties.c 5.4 (Berkeley) 6/1/90";
36#endif /* not lint */
37
38#include "externs.h"
39
40meleeing(from, to)
41struct ship *from;
42register struct ship *to;
43{
44 register struct BP *p = from->file->OBP;
45 register struct BP *q = p + NBP;
46
47 for (; p < q; p++)
48 if (p->turnsent && p->toship == to)
49 return 1;
50 return 0;
51}
52
53boarding(from, isdefense)
54register struct ship *from;
55char isdefense;
56{
57 register struct BP *p = isdefense ? from->file->DBP : from->file->OBP;
58 register struct BP *q = p + NBP;
59
60 for (; p < q; p++)
61 if (p->turnsent)
62 return 1;
63 return 0;
64}
65
66unboard(ship, to, isdefense)
67register struct ship *ship, *to;
68register char isdefense;
69{
70 register struct BP *p = isdefense ? ship->file->DBP : ship->file->OBP;
71 register n;
72
73 for (n = 0; n < NBP; p++, n++)
74 if (p->turnsent && (p->toship == to || isdefense || ship == to))
75 Write(isdefense ? W_DBP : W_OBP, ship, 0, n, 0, 0, 0);
76}