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dr_5.c revision 1.5 
      1 /*	$NetBSD: dr_5.c,v 1.5 1997/10/13 19:43:47 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[] = "@(#)dr_5.c	8.2 (Berkeley) 4/28/95";
     40 #else
     41 __RCSID("$NetBSD: dr_5.c,v 1.5 1997/10/13 19:43:47 christos Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include "extern.h"
     46 
     47 void
     48 subtract(from, totalfrom, crewfrom, fromcap, pcfrom)
     49 struct ship *from, *fromcap;
     50 int pcfrom;
     51 int  totalfrom, crewfrom[3];
     52 {
     53 	int n;
     54 
     55 	if (fromcap == from && totalfrom) {		/* if not captured */
     56 		for (n = 0; n < 3; n++) {
     57 			if (totalfrom > crewfrom[n]) {
     58 				totalfrom -= crewfrom[n];
     59 				crewfrom[n] = 0;
     60 			} else {
     61 				crewfrom[n] -= totalfrom;
     62 				totalfrom = 0;
     63 			}
     64 		}
     65 		Write(W_CREW, from, 0, crewfrom[0], crewfrom[1], crewfrom[2], 0);
     66 	} else if (totalfrom) {
     67 		pcfrom -= totalfrom;
     68 		pcfrom = pcfrom < 0 ? 0 : pcfrom;
     69 		Write(W_PCREW, from, 0, pcfrom, 0, 0, 0);
     70 	}
     71 }
     72 
     73 int
     74 mensent(from, to, crew, captured, pc, isdefense)
     75 struct ship *from, *to, **captured;
     76 int crew[3], *pc;
     77 char isdefense;
     78 {					/* returns # of crew squares sent */
     79 	int men = 0;
     80 	int n;
     81 	int c1, c2, c3;
     82 	struct BP *bp;
     83 
     84 	*pc = from->file->pcrew;
     85 	*captured = from->file->captured;
     86 	crew[0] = from->specs->crew1;
     87 	crew[1] = from->specs->crew2;
     88 	crew[2] = from->specs->crew3;
     89 	bp = isdefense ? from->file->DBP : from->file->OBP;
     90 	for (n=0; n < NBP; n++, bp++) {
     91 		if (bp->turnsent && bp->toship == to)
     92 			men += bp->mensent;
     93 	}
     94 	if (men) {
     95 		c1 = men/100 ? crew[0] : 0;
     96 		c2 = (men%100)/10 ? crew[1] : 0;
     97 		c3 = men/10 ? crew[2] : 0;
     98 		c3 = *captured == 0 ? crew[2] : *pc;
     99 	} else
    100 		c1 = c2 = c3 = 0;
    101 	return(c1 + c2 + c3);
    102 }
    103