1 /* $NetBSD: dr_5.c,v 1.14 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[] = "@(#)dr_5.c 8.2 (Berkeley) 4/28/95";
36 #else
37 __RCSID("$NetBSD: dr_5.c,v 1.14 2009/03/14 22:52:52 dholland Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <stddef.h>
42 #include "extern.h"
43
44 void
subtract(struct ship * from,struct ship * fromcap,int totalfrom,int * crewfrom,int pcfrom)45 subtract(struct ship *from, struct ship *fromcap, int totalfrom, int *crewfrom,
46 int pcfrom)
47 {
48 int n;
49
50 if (fromcap == from && totalfrom) { /* if not captured */
51 for (n = 0; n < 3; n++) {
52 if (totalfrom > crewfrom[n]) {
53 totalfrom -= crewfrom[n];
54 crewfrom[n] = 0;
55 } else {
56 crewfrom[n] -= totalfrom;
57 totalfrom = 0;
58 }
59 }
60 send_crew(from, crewfrom[0], crewfrom[1], crewfrom[2]);
61 } else if (totalfrom) {
62 pcfrom -= totalfrom;
63 pcfrom = pcfrom < 0 ? 0 : pcfrom;
64 send_pcrew(from, pcfrom);
65 }
66 }
67
68 int
mensent(struct ship * from,struct ship * to,int * crew,struct ship ** captured,int * pc,int isdefense)69 mensent(struct ship *from, struct ship *to, int *crew, struct ship **captured,
70 int *pc, int isdefense)
71 { /* returns # of crew squares sent */
72 int men = 0;
73 int n;
74 int c1, c2, c3;
75 struct BP *bp;
76
77 *pc = from->file->pcrew;
78 *captured = from->file->captured;
79 crew[0] = from->specs->crew1;
80 crew[1] = from->specs->crew2;
81 crew[2] = from->specs->crew3;
82 bp = isdefense ? from->file->DBP : from->file->OBP;
83 for (n=0; n < NBP; n++, bp++) {
84 if (bp->turnsent && bp->toship == to)
85 men += bp->mensent;
86 }
87 if (men) {
88 c1 = men/100 ? crew[0] : 0;
89 c2 = (men%100)/10 ? crew[1] : 0;
90 #if 0 /* double assignment */
91 c3 = men/10 ? crew[2] : 0;
92 #endif
93 c3 = *captured == NULL ? crew[2] : *pc;
94 } else
95 c1 = c2 = c3 = 0;
96 return(c1 + c2 + c3);
97 }
98