games/sail/parties.c

   1 /*      $NetBSD: parties.c,v 1.12 2009/03/14 22:52:52 dholland Exp $    */
   2
   3 /*
   4  * Copyright (c) 1983, 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[] = "@(#)parties.c   8.2 (Berkeley) 4/28/95";
  36 #else
  37 __RCSID("$NetBSD: parties.c,v 1.12 2009/03/14 22:52:52 dholland Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <sys/types.h>
  42 #include "extern.h"
  43
  44 int
  45 meleeing(struct ship *from, struct ship *to)
  46 {
  47         struct BP *p = from->file->OBP;
  48         struct BP *q = p + NBP;
  49
  50         for (; p < q; p++)
  51                 if (p->turnsent && p->toship == to)
  52                         return 1;
  53         return 0;
  54 }
  55
  56 int
  57 boarding(struct ship *from, int isdefense)
  58 {
  59         struct BP *p = isdefense ? from->file->DBP : from->file->OBP;
  60         struct BP *q = p + NBP;
  61
  62         for (; p < q; p++)
  63                 if (p->turnsent)
  64                         return 1;
  65         return 0;
  66 }
  67
  68 void
  69 unboard(struct ship *ship, struct ship *to, int isdefense)
  70 {
  71         struct BP *p = isdefense ? ship->file->DBP : ship->file->OBP;
  72         int n;
  73
  74         for (n = 0; n < NBP; p++, n++) {
  75                 if (p->turnsent &&
  76                     (p->toship == to || isdefense || ship == to)) {
  77                         if (isdefense) {
  78                                 send_dbp(ship, n, 0, 0, 0);
  79                         } else {
  80                                 send_obp(ship, n, 0, 0, 0);
  81                         }
  82                 }
  83         }
  84 }