1/*	$NetBSD: dr_5.c,v 1.15 2023/08/01 07:04:15 mrg 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
35static char sccsid[] = "@(#)dr_5.c	8.2 (Berkeley) 4/28/95";
36#else
37__RCSID("$NetBSD: dr_5.c,v 1.15 2023/08/01 07:04:15 mrg Exp $");
38#endif
39#endif /* not lint */
40
41#include <sys/types.h>
42#include "extern.h"
43
44void
45subtract(struct ship *from, struct ship *fromcap, int totalfrom, int crewfrom[3],
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
68int
69mensent(struct ship *from, struct ship *to, int crew[3], 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		c3 = men/10 ? crew[2] : 0;
91		c3 = *captured == 0 ? crew[2] : *pc;
92	} else
93		c1 = c2 = c3 = 0;
94	return(c1 + c2 + c3);
95}
96