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parties.c revision 1.2 
      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
     35 /*static char sccsid[] = "from: @(#)parties.c	5.4 (Berkeley) 6/1/90";*/
     36 static char rcsid[] = "$Id: parties.c,v 1.2 1993/08/01 18:51:42 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 #include "externs.h"
     40 
     41 meleeing(from, to)
     42 struct ship *from;
     43 register struct ship *to;
     44 {
     45 	register struct BP *p = from->file->OBP;
     46 	register struct BP *q = p + NBP;
     47 
     48 	for (; p < q; p++)
     49 		if (p->turnsent && p->toship == to)
     50 			return 1;
     51 	return 0;
     52 }
     53 
     54 boarding(from, isdefense)
     55 register struct ship *from;
     56 char isdefense;
     57 {
     58 	register struct BP *p = isdefense ? from->file->DBP : from->file->OBP;
     59 	register struct BP *q = p + NBP;
     60 
     61 	for (; p < q; p++)
     62 		if (p->turnsent)
     63 			return 1;
     64 	return 0;
     65 }
     66 
     67 unboard(ship, to, isdefense)
     68 register struct ship *ship, *to;
     69 register char isdefense;
     70 {
     71 	register struct BP *p = isdefense ? ship->file->DBP : ship->file->OBP;
     72 	register n;
     73 
     74 	for (n = 0; n < NBP; p++, n++)
     75 		if (p->turnsent && (p->toship == to || isdefense || ship == to))
     76 			Write(isdefense ? W_DBP : W_OBP, ship, 0, n, 0, 0, 0);
     77 }
     78