Merge from vendor branch OPENSSL:
[dragonfly.git] / games / sail / assorted.c
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1/*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. 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.
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32 *
33 * @(#)assorted.c 8.1 (Berkeley) 5/31/93
34 * $FreeBSD: src/games/sail/assorted.c,v 1.5 1999/11/30 03:49:31 billf Exp $
4be74d36 35 * $DragonFly: src/games/sail/assorted.c,v 1.3 2006/09/03 17:33:13 pavalos Exp $
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36 */
37
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38#include "externs.h"
39
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40static void strike(struct ship *, struct ship *);
41
42void
43table(int rig, int shot, int hittable,
44 struct ship *on, struct ship *from, int roll)
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45{
46 int hhits = 0, chits = 0, ghits = 0, rhits = 0;
47 int Ghit = 0, Hhit = 0, Rhit = 0, Chit = 0;
48 int guns, car, pc, hull;
49 int crew[3];
50 int n;
51 int rigg[4];
4be74d36 52 const char *message = NULL;
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53 struct Tables *tp;
54
55 pc = on->file->pcrew;
56 hull = on->specs->hull;
57 crew[0] = on->specs->crew1;
58 crew[1] = on->specs->crew2;
59 crew[2] = on->specs->crew3;
60 rigg[0] = on->specs->rig1;
61 rigg[1] = on->specs->rig2;
62 rigg[2] = on->specs->rig3;
63 rigg[3] = on->specs->rig4;
64 if (shot == L_GRAPE)
65 Chit = chits = hittable;
66 else {
67 tp = &(rig ? RigTable : HullTable)[hittable][roll-1];
68 Chit = chits = tp->C;
69 Rhit = rhits = tp->R;
70 Hhit = hhits = tp->H;
71 Ghit = ghits = tp->G;
72 if (on->file->FS)
73 rhits *= 2;
74 if (shot == L_CHAIN) {
75 Ghit = ghits = 0;
76 Hhit = hhits = 0;
77 }
78 }
79 if (on->file->captured != 0) {
80 pc -= (chits + 1) / 2;
81 chits /= 2;
82 }
83 for (n = 0; n < 3; n++)
84 if (chits > crew[n]) {
85 chits -= crew[n];
86 crew[n] = 0;
87 } else {
88 crew[n] -= chits;
89 chits = 0;
90 }
91 for (n = 0; n < 3; n++)
92 if (rhits > rigg[n]){
93 rhits -= rigg[n];
94 rigg[n] = 0;
95 } else {
96 rigg[n] -= rhits;
97 rhits = 0;
98 }
99 if (rigg[3] != -1 && rhits > rigg[3]) {
100 rhits -= rigg[3];
101 rigg[3] = 0;
102 } else if (rigg[3] != -1) {
103 rigg[3] -= rhits;
104 }
105 if (rig && !rigg[2] && (!rigg[3] || rigg[3] == -1))
106 makesignal(on, "dismasted!", (struct ship *)0);
107 if (portside(from, on, 0)) {
108 guns = on->specs->gunR;
109 car = on->specs->carR;
110 } else {
111 guns = on->specs->gunL;
112 car = on->specs->carL;
113 }
114 if (ghits > car) {
115 ghits -= car;
116 car = 0;
117 } else {
118 car -= ghits;
119 ghits = 0;
120 }
121 if (ghits > guns){
122 ghits -= guns;
123 guns = 0;
124 } else {
125 guns -= ghits;
126 ghits = 0;
127 }
128 hull -= ghits;
129 if (Ghit)
130 Write(portside(from, on, 0) ? W_GUNR : W_GUNL,
131 on, 0, guns, car, 0, 0);
132 hull -= hhits;
133 hull = hull < 0 ? 0 : hull;
134 if (on->file->captured != 0 && Chit)
135 Write(W_PCREW, on, 0, pc, 0, 0, 0);
136 if (Hhit)
137 Write(W_HULL, on, 0, hull, 0, 0, 0);
138 if (Chit)
139 Write(W_CREW, on, 0, crew[0], crew[1], crew[2], 0);
140 if (Rhit)
141 Write(W_RIGG, on, 0, rigg[0], rigg[1], rigg[2], rigg[3]);
142 switch (shot) {
143 case L_ROUND:
144 message = "firing round shot on %s (%c%c)";
145 break;
146 case L_GRAPE:
147 message = "firing grape shot on %s (%c%c)";
148 break;
149 case L_CHAIN:
150 message = "firing chain shot on %s (%c%c)";
151 break;
152 case L_DOUBLE:
153 message = "firing double shot on %s (%c%c)";
154 break;
155 case L_EXPLODE:
156 message = "exploding shot on %s (%c%c)";
157 }
158 makesignal(from, message, on);
159 if (roll == 6 && rig) {
160 switch(Rhit) {
161 case 0:
162 message = "fore topsail sheets parted";
163 break;
164 case 1:
165 message = "mizzen shrouds parted";
166 break;
167 case 2:
168 message = "main topsail yard shot away";
169 break;
170 case 4:
171 message = "fore topmast and foremast shrouds shot away";
172 break;
173 case 5:
174 message = "mizzen mast and yard shot through";
175 break;
176 case 6:
177 message = "foremast and spritsail yard shattered";
178 break;
179 case 7:
180 message = "main topmast and mizzen mast shattered";
181 break;
182 }
183 makesignal(on, message, (struct ship *)0);
184 } else if (roll == 6) {
185 switch (Hhit) {
186 case 0:
187 message = "anchor cables severed";
188 break;
189 case 1:
190 message = "two anchor stocks shot away";
191 break;
192 case 2:
193 message = "quarterdeck bulwarks damaged";
194 break;
195 case 3:
196 message = "three gun ports shot away";
197 break;
198 case 4:
199 message = "four guns dismounted";
200 break;
201 case 5:
202 message = "rudder cables shot through";
203 Write(W_TA, on, 0, 0, 0, 0, 0);
204 break;
205 case 6:
206 message = "shot holes below the water line";
207 break;
208 }
209 makesignal(on, message, (struct ship *)0);
210 }
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211 if (!hull)
212 strike(on, from);
213}
214
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215void
216Cleansnag(struct ship *from, struct ship *to, char all, char flag)
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217{
218 if (flag & 1) {
219 Write(W_UNGRAP, from, 0, to->file->index, all, 0, 0);
220 Write(W_UNGRAP, to, 0, from->file->index, all, 0, 0);
221 }
222 if (flag & 2) {
223 Write(W_UNFOUL, from, 0, to->file->index, all, 0, 0);
224 Write(W_UNFOUL, to, 0, from->file->index, all, 0, 0);
225 }
226 if (!snagged2(from, to)) {
227 if (!snagged(from)) {
228 unboard(from, from, 1); /* defense */
229 unboard(from, from, 0); /* defense */
230 } else
231 unboard(from, to, 0); /* offense */
232 if (!snagged(to)) {
233 unboard(to, to, 1); /* defense */
234 unboard(to, to, 0); /* defense */
235 } else
236 unboard(to, from, 0); /* offense */
237 }
238}
239
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240static void
241strike(struct ship *ship, struct ship *from)
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242{
243 int points;
244
245 if (ship->file->struck)
246 return;
247 Write(W_STRUCK, ship, 0, 1, 0, 0, 0);
248 points = ship->specs->pts + from->file->points;
249 Write(W_POINTS, from, 0, points, 0, 0, 0);
250 unboard(ship, ship, 0); /* all offense */
251 unboard(ship, ship, 1); /* all defense */
252 switch (die()) {
253 case 3:
254 case 4: /* ship may sink */
255 Write(W_SINK, ship, 0, 1, 0, 0, 0);
256 break;
257 case 5:
258 case 6: /* ship may explode */
259 Write(W_EXPLODE, ship, 0, 1, 0, 0, 0);
260 break;
261 }
262 Write(W_SIGNAL, ship, 1, (int) "striking her colours!", 0, 0, 0);
263}