sail/dr_5.c

   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 }