sail/parties.c

   1 /*      $NetBSD: parties.c,v 1.10 2001/02/05 01:10:10 christos 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. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 #if 0
  39 static char sccsid[] = "@(#)parties.c   8.2 (Berkeley) 4/28/95";
  40 #else
  41 __RCSID("$NetBSD: parties.c,v 1.10 2001/02/05 01:10:10 christos Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 #include <sys/types.h>
  46 #include "extern.h"
  47
  48 int
  49 meleeing(struct ship *from, struct ship *to)
  50 {
  51         struct BP *p = from->file->OBP;
  52         struct BP *q = p + NBP;
  53
  54         for (; p < q; p++)
  55                 if (p->turnsent && p->toship == to)
  56                         return 1;
  57         return 0;
  58 }
  59
  60 int
  61 boarding(struct ship *from, int isdefense)
  62 {
  63         struct BP *p = isdefense ? from->file->DBP : from->file->OBP;
  64         struct BP *q = p + NBP;
  65
  66         for (; p < q; p++)
  67                 if (p->turnsent)
  68                         return 1;
  69         return 0;
  70 }
  71
  72 void
  73 unboard(struct ship *ship, struct ship *to, int isdefense)
  74 {
  75         struct BP *p = isdefense ? ship->file->DBP : ship->file->OBP;
  76         int n;
  77
  78         for (n = 0; n < NBP; p++, n++)
  79                 if (p->turnsent && (p->toship == to || isdefense || ship == to))
  80                         Write(isdefense ? W_DBP : W_OBP, ship, n, 0, 0, 0);
  81 }