Commit | Line | Data |
---|---|---|
b5f0675e | 1 | /* |
1e008c14 DF |
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. | |
b5f0675e EW |
5 | */ |
6 | ||
b860dc81 | 7 | #ifndef lint |
1e008c14 DF |
8 | static char sccsid[] = "@(#)dr_3.c 5.1 (Berkeley) %G%"; |
9 | #endif not lint | |
b860dc81 | 10 | |
b3a57661 | 11 | #include "driver.h" |
b860dc81 CL |
12 | |
13 | moveall() /* move all comp ships */ | |
14 | { | |
b3a57661 EW |
15 | register struct ship *sp, *sq; /* r11, r10 */ |
16 | register int n; /* r9 */ | |
6ca45914 | 17 | register int k, l; /* r8, r7 */ |
28c0fb82 EW |
18 | int row[NSHIP], col[NSHIP], dir[NSHIP], drift[NSHIP]; |
19 | char moved[NSHIP]; | |
b860dc81 | 20 | |
b3a57661 EW |
21 | /* |
22 | * first try to create moves for OUR ships | |
23 | */ | |
24 | foreachship(sp) { | |
28c0fb82 EW |
25 | struct ship *closest; |
26 | int ma, ta; | |
27 | char af; | |
28 | ||
6c17b19a | 29 | if (sp->file->captain[0] || sp->file->dir == 0) |
b3a57661 EW |
30 | continue; |
31 | if (!sp->file->struck && windspeed && !snagged(sp) | |
32 | && sp->specs->crew3) { | |
6c17b19a | 33 | ta = maxturns(sp, &af); |
b3a57661 EW |
34 | ma = maxmove(sp, sp->file->dir, 0); |
35 | closest = closestenemy(sp, 0, 0); | |
36 | if (closest == 0) | |
6ca45914 | 37 | *sp->file->movebuf = '\0'; |
b860dc81 | 38 | else |
6ca45914 | 39 | closeon(sp, closest, sp->file->movebuf, |
b3a57661 EW |
40 | ta, ma, af); |
41 | } else | |
6ca45914 | 42 | *sp->file->movebuf = '\0'; |
b860dc81 | 43 | } |
b3a57661 EW |
44 | /* |
45 | * Then execute the moves for ALL ships (dead ones too), | |
28c0fb82 EW |
46 | * checking for collisions and snags at each step. |
47 | * The old positions are saved in row[], col[], dir[]. | |
48 | * At the end, we compare and write out the changes. | |
b3a57661 EW |
49 | */ |
50 | n = 0; | |
51 | foreachship(sp) { | |
52 | if (snagged(sp)) | |
6ca45914 | 53 | (void) strcpy(sp->file->movebuf, "d"); |
b3a57661 | 54 | else |
6ca45914 EW |
55 | if (*sp->file->movebuf != 'd') |
56 | (void) strcat(sp->file->movebuf, "d"); | |
b3a57661 EW |
57 | row[n] = sp->file->row; |
58 | col[n] = sp->file->col; | |
59 | dir[n] = sp->file->dir; | |
28c0fb82 EW |
60 | drift[n] = sp->file->drift; |
61 | moved[n] = 0; | |
b3a57661 | 62 | n++; |
b860dc81 | 63 | } |
b3a57661 EW |
64 | /* |
65 | * Now resolve collisions. | |
66 | * This is the tough part. | |
67 | */ | |
28c0fb82 | 68 | for (k = 0; stillmoving(k); k++) { |
b3a57661 EW |
69 | /* |
70 | * Step once. | |
6ca45914 | 71 | * And propagate the nulls at the end of sp->file->movebuf. |
b3a57661 EW |
72 | */ |
73 | n = 0; | |
74 | foreachship(sp) { | |
6ca45914 EW |
75 | if (!sp->file->movebuf[k]) |
76 | sp->file->movebuf[k+1] = '\0'; | |
28c0fb82 | 77 | else if (sp->file->dir) |
6ca45914 | 78 | step(sp->file->movebuf[k], sp, &moved[n]); |
b3a57661 | 79 | n++; |
b860dc81 | 80 | } |
b3a57661 EW |
81 | /* |
82 | * The real stuff. | |
83 | */ | |
84 | n = 0; | |
85 | foreachship(sp) { | |
28c0fb82 | 86 | if (sp->file->dir == 0 || isolated(sp)) |
759267e0 | 87 | goto cont1; |
b3a57661 EW |
88 | l = 0; |
89 | foreachship(sq) { | |
28c0fb82 EW |
90 | char snap = 0; |
91 | ||
759267e0 EW |
92 | if (sp == sq) |
93 | goto cont2; | |
28c0fb82 | 94 | if (sq->file->dir == 0) |
759267e0 | 95 | goto cont2; |
28c0fb82 EW |
96 | if (!push(sp, sq)) |
97 | goto cont2; | |
98 | if (snagged2(sp, sq) && range(sp, sq) > 1) | |
99 | snap++; | |
100 | if (!range(sp, sq) && !fouled2(sp, sq)) { | |
b3a57661 EW |
101 | makesignal(sp, |
102 | "collision with %s (%c%c)", sq); | |
103 | if (die() < 4) { | |
104 | makesignal(sp, | |
105 | "fouled with %s (%c%c)", | |
106 | sq); | |
6ca45914 EW |
107 | Write(W_FOUL, sp, 0, l, 0, 0, 0); |
108 | Write(W_FOUL, sq, 0, n, 0, 0, 0); | |
b860dc81 | 109 | } |
28c0fb82 EW |
110 | snap++; |
111 | } | |
112 | if (snap) { | |
6ca45914 EW |
113 | sp->file->movebuf[k + 1] = 0; |
114 | sq->file->movebuf[k + 1] = 0; | |
28c0fb82 | 115 | sq->file->row = sp->file->row - 1; |
b3a57661 EW |
116 | if (sp->file->dir == 1 |
117 | || sp->file->dir == 5) | |
28c0fb82 EW |
118 | sq->file->col = |
119 | sp->file->col - 1; | |
b3a57661 | 120 | else |
28c0fb82 EW |
121 | sq->file->col = sp->file->col; |
122 | sq->file->dir = sp->file->dir; | |
b860dc81 | 123 | } |
759267e0 | 124 | cont2: |
b3a57661 | 125 | l++; |
b860dc81 | 126 | } |
759267e0 | 127 | cont1: |
b3a57661 | 128 | n++; |
b860dc81 CL |
129 | } |
130 | } | |
b3a57661 | 131 | /* |
28c0fb82 | 132 | * Clear old moves. And write out new pos. |
b3a57661 | 133 | */ |
28c0fb82 EW |
134 | n = 0; |
135 | foreachship(sp) { | |
136 | if (sp->file->dir != 0) { | |
6ca45914 | 137 | *sp->file->movebuf = 0; |
28c0fb82 | 138 | if (row[n] != sp->file->row) |
6ca45914 | 139 | Write(W_ROW, sp, 0, sp->file->row, 0, 0, 0); |
28c0fb82 | 140 | if (col[n] != sp->file->col) |
6ca45914 | 141 | Write(W_COL, sp, 0, sp->file->col, 0, 0, 0); |
28c0fb82 | 142 | if (dir[n] != sp->file->dir) |
6ca45914 | 143 | Write(W_DIR, sp, 0, sp->file->dir, 0, 0, 0); |
28c0fb82 EW |
144 | if (drift[n] != sp->file->drift) |
145 | Write(W_DRIFT, sp, 0, sp->file->drift, 0, 0, 0); | |
146 | } | |
147 | n++; | |
148 | } | |
b860dc81 CL |
149 | } |
150 | ||
28c0fb82 | 151 | stillmoving(k) |
b860dc81 CL |
152 | register int k; |
153 | { | |
b3a57661 | 154 | register struct ship *sp; |
b860dc81 | 155 | |
28c0fb82 | 156 | foreachship(sp) |
6ca45914 | 157 | if (sp->file->movebuf[k]) |
b3a57661 | 158 | return 1; |
b3a57661 | 159 | return 0; |
b860dc81 CL |
160 | } |
161 | ||
162 | isolated(ship) | |
b3a57661 | 163 | register struct ship *ship; |
b860dc81 | 164 | { |
b3a57661 | 165 | register struct ship *sp; |
b860dc81 | 166 | |
b3a57661 EW |
167 | foreachship(sp) { |
168 | if (ship != sp && range(ship, sp) <= 10) | |
169 | return 0; | |
170 | } | |
171 | return 1; | |
b860dc81 CL |
172 | } |
173 | ||
174 | push(from, to) | |
b3a57661 | 175 | register struct ship *from, *to; |
b860dc81 | 176 | { |
b860dc81 CL |
177 | register int bs, sb; |
178 | ||
28c0fb82 EW |
179 | sb = to->specs->guns; |
180 | bs = from->specs->guns; | |
b3a57661 EW |
181 | if (sb > bs) |
182 | return 1; | |
b860dc81 | 183 | if (sb < bs) |
b3a57661 EW |
184 | return 0; |
185 | return from < to; | |
b860dc81 CL |
186 | } |
187 | ||
28c0fb82 | 188 | step(com, sp, moved) |
b860dc81 | 189 | char com; |
28c0fb82 EW |
190 | register struct ship *sp; |
191 | char *moved; | |
b860dc81 | 192 | { |
b860dc81 CL |
193 | register int dist; |
194 | ||
b3a57661 EW |
195 | switch (com) { |
196 | case 'r': | |
28c0fb82 EW |
197 | if (++sp->file->dir == 9) |
198 | sp->file->dir = 1; | |
b3a57661 EW |
199 | break; |
200 | case 'l': | |
28c0fb82 EW |
201 | if (--sp->file->dir == 0) |
202 | sp->file->dir = 8; | |
b3a57661 | 203 | break; |
daf95c1e EW |
204 | case '0': case '1': case '2': case '3': |
205 | case '4': case '5': case '6': case '7': | |
28c0fb82 | 206 | if (sp->file->dir % 2 == 0) |
b3a57661 EW |
207 | dist = dtab[com - '0']; |
208 | else | |
209 | dist = com - '0'; | |
28c0fb82 EW |
210 | sp->file->row -= dr[sp->file->dir] * dist; |
211 | sp->file->col -= dc[sp->file->dir] * dist; | |
212 | *moved = 1; | |
b3a57661 EW |
213 | break; |
214 | case 'b': | |
215 | break; | |
216 | case 'd': | |
28c0fb82 | 217 | if (!*moved) { |
9d517234 | 218 | if (windspeed != 0 && ++sp->file->drift > 2 && |
28c0fb82 EW |
219 | (sp->specs->class >= 3 && !snagged(sp) |
220 | || (turn & 1) == 0)) { | |
221 | sp->file->row -= dr[winddir]; | |
222 | sp->file->col -= dc[winddir]; | |
223 | } | |
224 | } else | |
225 | sp->file->drift = 0; | |
b3a57661 | 226 | break; |
b860dc81 CL |
227 | } |
228 | } | |
229 | ||
b3a57661 EW |
230 | sendbp(from, to, sections, isdefense) |
231 | register struct ship *from, *to; | |
232 | int sections; | |
233 | char isdefense; | |
b860dc81 CL |
234 | { |
235 | int n; | |
b3a57661 | 236 | register struct BP *bp; |
b860dc81 | 237 | |
b3a57661 | 238 | bp = isdefense ? from->file->DBP : from->file->OBP; |
daf95c1e | 239 | for (n = 0; n < NBP && bp[n].turnsent; n++) |
b3a57661 | 240 | ; |
daf95c1e | 241 | if (n < NBP && sections) { |
b3a57661 | 242 | Write(isdefense ? W_DBP : W_OBP, from, 0, |
daf95c1e | 243 | n, turn, to->file->index, sections); |
b3a57661 EW |
244 | if (isdefense) |
245 | makesignal(from, "repelling boarders", | |
246 | (struct ship *)0); | |
b860dc81 | 247 | else |
b3a57661 | 248 | makesignal(from, "boarding the %s (%c%c)", to); |
b860dc81 CL |
249 | } |
250 | } | |
251 | ||
b3a57661 EW |
252 | toughmelee(ship, to, isdefense, count) |
253 | register struct ship *ship, *to; | |
254 | int isdefense, count; | |
b860dc81 | 255 | { |
b3a57661 EW |
256 | register struct BP *bp; |
257 | register obp = 0; | |
258 | int n, OBP = 0, DBP = 0, dbp = 0; | |
b860dc81 | 259 | int qual; |
b860dc81 | 260 | |
b3a57661 EW |
261 | qual = ship->specs->qual; |
262 | bp = isdefense ? ship->file->DBP : ship->file->OBP; | |
263 | for (n = 0; n < NBP; n++, bp++) { | |
264 | if (bp->turnsent && (to == bp->toship || isdefense)) { | |
265 | obp += bp->mensent / 100 | |
266 | ? ship->specs->crew1 * qual : 0; | |
267 | obp += (bp->mensent % 100)/10 | |
268 | ? ship->specs->crew2 * qual : 0; | |
269 | obp += bp->mensent % 10 | |
270 | ? ship->specs->crew3 * qual : 0; | |
b860dc81 CL |
271 | } |
272 | } | |
b3a57661 EW |
273 | if (count || isdefense) |
274 | return obp; | |
275 | OBP = toughmelee(to, ship, 0, count + 1); | |
276 | dbp = toughmelee(ship, to, 1, count + 1); | |
277 | DBP = toughmelee(to, ship, 1, count + 1); | |
b860dc81 | 278 | if (OBP > obp + 10 || OBP + DBP >= obp + dbp + 10) |
b3a57661 | 279 | return 1; |
b860dc81 | 280 | else |
b3a57661 | 281 | return 0; |
b860dc81 CL |
282 | } |
283 | ||
284 | reload() | |
285 | { | |
b3a57661 | 286 | register struct ship *sp; |
b860dc81 | 287 | |
b3a57661 EW |
288 | foreachship(sp) { |
289 | sp->file->loadwith = 0; | |
290 | } | |
b860dc81 CL |
291 | } |
292 | ||
293 | checksails() | |
294 | { | |
b3a57661 EW |
295 | register struct ship *sp; |
296 | register int rig, full; | |
297 | struct ship *close; | |
b860dc81 | 298 | |
b3a57661 EW |
299 | foreachship(sp) { |
300 | if (sp->file->captain[0] != 0) | |
301 | continue; | |
302 | rig = sp->specs->rig1; | |
303 | if (windspeed == 6 || windspeed == 5 && sp->specs->class > 4) | |
b860dc81 | 304 | rig = 0; |
b3a57661 EW |
305 | if (rig && sp->specs->crew3) { |
306 | close = closestenemy(sp, 0, 0); | |
307 | if (close != 0) { | |
308 | if (range(sp, close) > 9) | |
309 | full = 1; | |
310 | else | |
b860dc81 | 311 | full = 0; |
b3a57661 | 312 | } else |
b860dc81 | 313 | full = 0; |
b3a57661 EW |
314 | } else |
315 | full = 0; | |
316 | if ((sp->file->FS != 0) != full) | |
317 | Write(W_FS, sp, 0, full, 0, 0, 0); | |
b860dc81 CL |
318 | } |
319 | } |