xref: /original-bsd/games/sail/assorted.c (revision 46973fa8)
1 /*
2  * Copyright (c) 1983 Regents of the University of California.
3  * All rights reserved.  The Berkeley software License Agreement
4  * specifies the terms and conditions for redistribution.
5  */
6 
7 #ifndef lint
8 static char sccsid[] = "@(#)assorted.c	5.1 (Berkeley) 05/29/85";
9 #endif not lint
10 
11 #include "externs.h"
12 
13 table(rig, shot, hittable, on, from, roll)
14 struct ship *on, *from;
15 int rig, shot, hittable, roll;
16 {
17 	register int hhits = 0, chits = 0, ghits = 0, rhits = 0;
18 	int Ghit = 0, Hhit = 0, Rhit = 0, Chit = 0;
19 	int guns, car, pc, hull;
20 	int crew[3];
21 	register int n;
22 	int rigg[4];
23 	char *message;
24 	struct Tables *tp;
25 
26 	pc = on->file->pcrew;
27 	hull = on->specs->hull;
28 	crew[0] = on->specs->crew1;
29 	crew[1] = on->specs->crew2;
30 	crew[2] = on->specs->crew3;
31 	rigg[0] = on->specs->rig1;
32 	rigg[1] = on->specs->rig2;
33 	rigg[2] = on->specs->rig3;
34 	rigg[3] = on->specs->rig4;
35 	if (shot == L_GRAPE)
36 		Chit = chits = hittable;
37 	else {
38 		tp = &(rig ? RigTable : HullTable)[hittable][roll-1];
39 		Chit = chits = tp->C;
40 		Rhit = rhits = tp->R;
41 		Hhit = hhits = tp->H;
42 		Ghit = ghits = tp->G;
43 		if (on->file->FS)
44 			rhits *= 2;
45 		if (shot == L_CHAIN) {
46 			Ghit = ghits = 0;
47 			Hhit = hhits = 0;
48 		}
49 	}
50 	if (on->file->captured != 0) {
51 		pc -= (chits + 1) / 2;
52 		chits /= 2;
53 	}
54 	for (n = 0; n < 3; n++)
55 		if (chits > crew[n]) {
56 			chits -= crew[n];
57 			crew[n] = 0;
58 		} else {
59 			crew[n] -= chits;
60 			chits = 0;
61 		}
62 	for (n = 0; n < 3; n++)
63 		if (rhits > rigg[n]){
64 			rhits -= rigg[n];
65 			rigg[n] = 0;
66 		} else {
67 			rigg[n] -= rhits;
68 			rhits = 0;
69 		}
70 	if (rigg[3] != -1 && rhits > rigg[3]) {
71 		rhits -= rigg[3];
72 		rigg[3] = 0;
73 	} else if (rigg[3] != -1) {
74 		rigg[3] -= rhits;
75 	}
76 	if (rig && !rigg[2] && (!rigg[3] || rigg[3] == -1))
77 		makesignal(on, "dismasted!", (struct ship *)0);
78 	if (portside(from, on, 0)) {
79 		guns = on->specs->gunR;
80 		car = on->specs->carR;
81 	} else {
82 		guns = on->specs->gunL;
83 		car = on->specs->carL;
84 	}
85 	if (ghits > car) {
86 		ghits -= car;
87 		car = 0;
88 	} else {
89 		car -= ghits;
90 		ghits = 0;
91 	}
92 	if (ghits > guns){
93 		ghits -= guns;
94 		guns = 0;
95 	} else {
96 		guns -= ghits;
97 		ghits = 0;
98 	}
99 	hull -= ghits;
100 	if (Ghit)
101 		Write(portside(from, on, 0) ? W_GUNR : W_GUNL,
102 			on, 0, guns, car, 0, 0);
103 	hull -= hhits;
104 	hull = hull < 0 ? 0 : hull;
105 	if (on->file->captured != 0 && Chit)
106 		Write(W_PCREW, on, 0, pc, 0, 0, 0);
107 	if (Hhit)
108 		Write(W_HULL, on, 0, hull, 0, 0, 0);
109 	if (Chit)
110 		Write(W_CREW, on, 0, crew[0], crew[1], crew[2], 0);
111 	if (Rhit)
112 		Write(W_RIGG, on, 0, rigg[0], rigg[1], rigg[2], rigg[3]);
113 	switch (shot) {
114 	case L_ROUND:
115 		message = "firing round shot on %s (%c%c)";
116 		break;
117 	case L_GRAPE:
118 		message = "firing grape shot on %s (%c%c)";
119 		break;
120 	case L_CHAIN:
121 		message = "firing chain shot on %s (%c%c)";
122 		break;
123 	case L_DOUBLE:
124 		message = "firing double shot on %s (%c%c)";
125 		break;
126 	case L_EXPLODE:
127 		message = "exploding shot on %s (%c%c)";
128 	}
129 	makesignal(from, message, on);
130 	if (roll == 6 && rig) {
131 		switch(Rhit) {
132 		case 0:
133 			message = "fore topsail sheets parted";
134 			break;
135 		case 1:
136 			message = "mizzen shrouds parted";
137 			break;
138 		case 2:
139 			message = "main topsail yard shot away";
140 			break;
141 		case 4:
142 			message = "fore topmast and foremast shrouds shot away";
143 			break;
144 		case 5:
145 			message = "mizzen mast and yard shot through";
146 			break;
147 		case 6:
148 			message = "foremast and spritsail yard shattered";
149 			break;
150 		case 7:
151 			message = "main topmast and mizzen mast shattered";
152 			break;
153 		}
154 		makesignal(on, message, (struct ship *)0);
155 	} else if (roll == 6) {
156 		switch (Hhit) {
157 		case 0:
158 			message = "anchor cables severed";
159 			break;
160 		case 1:
161 			message = "two anchor stocks shot away";
162 			break;
163 		case 2:
164 			message = "quarterdeck bulwarks damaged";
165 			break;
166 		case 3:
167 			message = "three gun ports shot away";
168 			break;
169 		case 4:
170 			message = "four guns dismounted";
171 			break;
172 		case 5:
173 			message = "rudder cables shot through";
174 			Write(W_TA, on, 0, 0, 0, 0, 0);
175 			break;
176 		case 6:
177 			message = "shot holes below the water line";
178 			break;
179 		}
180 		makesignal(on, message, (struct ship *)0);
181 	}
182 	/*
183 	if (Chit > 1 && on->file->readyL&R_INITIAL && on->file->readyR&R_INITIAL) {
184 		on->specs->qual--;
185 		if (on->specs->qual <= 0) {
186 			makesignal(on, "crew mutinying!", (struct ship *)0);
187 			on->specs->qual = 5;
188 			Write(W_CAPTURED, on, 0, on->file->index, 0, 0, 0);
189 		} else
190 			makesignal(on, "crew demoralized", (struct ship *)0);
191 		Write(W_QUAL, on, 0, on->specs->qual, 0, 0, 0);
192 	}
193 	*/
194 	if (!hull)
195 		strike(on, from);
196 }
197 
198 Cleansnag(from, to, all, flag)
199 register struct ship *from, *to;
200 char all, flag;
201 {
202 	if (flag & 1) {
203 		Write(W_UNGRAP, from, 0, to->file->index, all, 0, 0);
204 		Write(W_UNGRAP, to, 0, from->file->index, all, 0, 0);
205 	}
206 	if (flag & 2) {
207 		Write(W_UNFOUL, from, 0, to->file->index, all, 0, 0);
208 		Write(W_UNFOUL, to, 0, from->file->index, all, 0, 0);
209 	}
210 	if (!snagged2(from, to)) {
211 		if (!snagged(from)) {
212 			unboard(from, from, 1);		/* defense */
213 			unboard(from, from, 0);		/* defense */
214 		} else
215 			unboard(from, to, 0);		/* offense */
216 		if (!snagged(to)) {
217 			unboard(to, to, 1);		/* defense */
218 			unboard(to, to, 0);		/* defense */
219 		} else
220 			unboard(to, from, 0);		/* offense */
221 	}
222 }
223 
224 strike(ship, from)
225 register struct ship *ship, *from;
226 {
227 	int points;
228 
229 	if (ship->file->struck)
230 		return;
231 	Write(W_STRUCK, ship, 0, 1, 0, 0, 0);
232 	points = ship->specs->pts + from->file->points;
233 	Write(W_POINTS, from, 0, points, 0, 0, 0);
234 	unboard(ship, ship, 0);		/* all offense */
235 	unboard(ship, ship, 1);		/* all defense */
236 	switch (die()) {
237 	case 3:
238 	case 4:		/* ship may sink */
239 		Write(W_SINK, ship, 0, 1, 0, 0, 0);
240 		break;
241 	case 5:
242 	case 6:		/* ship may explode */
243 		Write(W_EXPLODE, ship, 0, 1, 0, 0, 0);
244 		break;
245 	}
246 	Write(W_SIGNAL, ship, 1, (int) "striking her colours!", 0, 0, 0);
247 }
248