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b6f0a7e4 DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
e9fb6bea KB |
3 | * All rights reserved. |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
d99e6414 KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
b6f0a7e4 DF |
16 | */ |
17 | ||
bab4d182 | 18 | #ifndef lint |
d99e6414 | 19 | static char sccsid[] = "@(#)events.c 5.3 (Berkeley) %G%"; |
e9fb6bea | 20 | #endif /* not lint */ |
bab4d182 KM |
21 | |
22 | # include "trek.h" | |
23 | ||
24 | /* | |
25 | ** CAUSE TIME TO ELAPSE | |
26 | ** | |
27 | ** This routine does a hell of a lot. It elapses time, eats up | |
28 | ** energy, regenerates energy, processes any events that occur, | |
29 | ** and so on. | |
30 | */ | |
31 | ||
32 | ||
33 | events(warp) | |
34 | int warp; /* set if called in a time warp */ | |
35 | { | |
36 | register int i; | |
37 | int j; | |
38 | struct kling *k; | |
39 | double rtime; | |
40 | double xdate; | |
41 | double idate; | |
06d69904 | 42 | struct event *ev, *xsched(), *schedule(); |
bab4d182 KM |
43 | int ix, iy; |
44 | register struct quad *q; | |
45 | register struct event *e; | |
46 | int evnum; | |
47 | int restcancel; | |
48 | ||
49 | /* if nothing happened, just allow for any Klingons killed */ | |
50 | if (Move.time <= 0.0) | |
51 | { | |
52 | Now.time = Now.resource / Now.klings; | |
53 | return (0); | |
54 | } | |
55 | ||
56 | /* indicate that the cloaking device is now working */ | |
57 | Ship.cloakgood = 1; | |
58 | ||
59 | /* idate is the initial date */ | |
60 | idate = Now.date; | |
61 | ||
62 | /* schedule attacks if resting too long */ | |
63 | if (Move.time > 0.5 && Move.resting) | |
64 | schedule(E_ATTACK, 0.5, 0, 0, 0); | |
65 | ||
66 | /* scan the event list */ | |
67 | while (1) | |
68 | { | |
69 | restcancel = 0; | |
70 | evnum = -1; | |
71 | /* xdate is the date of the current event */ | |
72 | xdate = idate + Move.time; | |
73 | ||
74 | /* find the first event that has happened */ | |
75 | for (i = 0; i < MAXEVENTS; i++) | |
76 | { | |
77 | e = &Event[i]; | |
78 | if (e->evcode == 0 || (e->evcode & E_GHOST)) | |
79 | continue; | |
80 | if (e->date < xdate) | |
81 | { | |
82 | xdate = e->date; | |
83 | ev = e; | |
84 | evnum = i; | |
85 | } | |
86 | } | |
87 | e = ev; | |
88 | ||
89 | /* find the time between events */ | |
90 | rtime = xdate - Now.date; | |
91 | ||
92 | /* decrement the magic "Federation Resources" pseudo-variable */ | |
06d69904 | 93 | Now.resource -= Now.klings * rtime; |
bab4d182 KM |
94 | /* and recompute the time left */ |
95 | Now.time = Now.resource / Now.klings; | |
96 | ||
97 | /* move us up to the next date */ | |
98 | Now.date = xdate; | |
99 | ||
100 | /* check for out of time */ | |
101 | if (Now.time <= 0.0) | |
102 | lose(L_NOTIME); | |
103 | # ifdef xTRACE | |
104 | if (evnum >= 0 && Trace) | |
105 | printf("xdate = %.2f, evcode %d params %d %d %d\n", | |
106 | xdate, e->evcode, e->x, e->y, e->systemname); | |
107 | # endif | |
108 | ||
109 | /* if evnum < 0, no events occurred */ | |
110 | if (evnum < 0) | |
111 | break; | |
112 | ||
113 | /* otherwise one did. Find out what it is */ | |
114 | switch (e->evcode & E_EVENT) | |
115 | { | |
116 | ||
117 | case E_SNOVA: /* supernova */ | |
118 | /* cause the supernova to happen */ | |
119 | snova(-1); | |
120 | /* and schedule the next one */ | |
121 | xresched(e, E_SNOVA, 1); | |
122 | break; | |
123 | ||
124 | case E_LRTB: /* long range tractor beam */ | |
125 | /* schedule the next one */ | |
126 | xresched(e, E_LRTB, Now.klings); | |
127 | /* LRTB cannot occur if we are docked */ | |
128 | if (Ship.cond != DOCKED) | |
129 | { | |
130 | /* pick a new quadrant */ | |
131 | i = ranf(Now.klings) + 1; | |
132 | for (ix = 0; ix < NQUADS; ix++) | |
133 | { | |
134 | for (iy = 0; iy < NQUADS; iy++) | |
135 | { | |
136 | q = &Quad[ix][iy]; | |
137 | if (q->stars >= 0) | |
06d69904 | 138 | if ((i -= q->klings) <= 0) |
bab4d182 KM |
139 | break; |
140 | } | |
141 | if (i <= 0) | |
142 | break; | |
143 | } | |
144 | ||
145 | /* test for LRTB to same quadrant */ | |
146 | if (Ship.quadx == ix && Ship.quady == iy) | |
147 | break; | |
148 | ||
149 | /* nope, dump him in the new quadrant */ | |
150 | Ship.quadx = ix; | |
151 | Ship.quady = iy; | |
152 | printf("\n%s caught in long range tractor beam\n", Ship.shipname); | |
153 | printf("*** Pulled to quadrant %d,%d\n", Ship.quadx, Ship.quady); | |
154 | Ship.sectx = ranf(NSECTS); | |
155 | Ship.secty = ranf(NSECTS); | |
156 | initquad(0); | |
157 | /* truncate the move time */ | |
158 | Move.time = xdate - idate; | |
159 | } | |
160 | break; | |
161 | ||
162 | case E_KATSB: /* Klingon attacks starbase */ | |
163 | /* if out of bases, forget it */ | |
164 | if (Now.bases <= 0) | |
165 | { | |
166 | unschedule(e); | |
167 | break; | |
168 | } | |
169 | ||
170 | /* check for starbase and Klingons in same quadrant */ | |
171 | for (i = 0; i < Now.bases; i++) | |
172 | { | |
173 | ix = Now.base[i].x; | |
174 | iy = Now.base[i].y; | |
175 | /* see if a Klingon exists in this quadrant */ | |
176 | q = &Quad[ix][iy]; | |
177 | if (q->klings <= 0) | |
178 | continue; | |
179 | ||
180 | /* see if already distressed */ | |
181 | for (j = 0; j < MAXEVENTS; j++) | |
182 | { | |
183 | e = &Event[j]; | |
184 | if ((e->evcode & E_EVENT) != E_KDESB) | |
185 | continue; | |
186 | if (e->x == ix && e->y == iy) | |
187 | break; | |
188 | } | |
189 | if (j < MAXEVENTS) | |
190 | continue; | |
191 | ||
192 | /* got a potential attack */ | |
193 | break; | |
194 | } | |
195 | e = ev; | |
196 | if (i >= Now.bases) | |
197 | { | |
198 | /* not now; wait a while and see if some Klingons move in */ | |
199 | reschedule(e, 0.5 + 3.0 * franf()); | |
200 | break; | |
201 | } | |
202 | /* schedule a new attack, and a destruction of the base */ | |
203 | xresched(e, E_KATSB, 1); | |
204 | e = xsched(E_KDESB, 1, ix, iy, 0); | |
205 | ||
206 | /* report it if we can */ | |
207 | if (!damaged(SSRADIO)) | |
208 | { | |
209 | printf("\nUhura: Captain, we have recieved a distress signal\n"); | |
210 | printf(" from the starbase in quadrant %d,%d.\n", | |
211 | ix, iy); | |
212 | restcancel++; | |
213 | } | |
214 | else | |
215 | /* SSRADIO out, make it so we can't see the distress call */ | |
216 | /* but it's still there!!! */ | |
06d69904 | 217 | e->evcode |= E_HIDDEN; |
bab4d182 KM |
218 | break; |
219 | ||
220 | case E_KDESB: /* Klingon destroys starbase */ | |
221 | unschedule(e); | |
222 | q = &Quad[e->x][e->y]; | |
223 | /* if the base has mysteriously gone away, or if the Klingon | |
224 | got tired and went home, ignore this event */ | |
225 | if (q->bases <=0 || q->klings <= 0) | |
226 | break; | |
227 | /* are we in the same quadrant? */ | |
228 | if (e->x == Ship.quadx && e->y == Ship.quady) | |
229 | { | |
230 | /* yep, kill one in this quadrant */ | |
231 | printf("\nSpock: "); | |
232 | killb(Ship.quadx, Ship.quady); | |
233 | } | |
234 | else | |
235 | /* kill one in some other quadrant */ | |
236 | killb(e->x, e->y); | |
237 | break; | |
238 | ||
239 | case E_ISSUE: /* issue a distress call */ | |
240 | xresched(e, E_ISSUE, 1); | |
241 | /* if we already have too many, throw this one away */ | |
242 | if (Ship.distressed >= MAXDISTR) | |
243 | break; | |
244 | /* try a whole bunch of times to find something suitable */ | |
245 | for (i = 0; i < 100; i++) | |
246 | { | |
247 | ix = ranf(NQUADS); | |
248 | iy = ranf(NQUADS); | |
249 | q = &Quad[ix][iy]; | |
250 | /* need a quadrant which is not the current one, | |
251 | which has some stars which are inhabited and | |
252 | not already under attack, which is not | |
253 | supernova'ed, and which has some Klingons in it */ | |
254 | if (!((ix == Ship.quadx && iy == Ship.quady) || q->stars < 0 || | |
06d69904 KL |
255 | (q->qsystemname & Q_DISTRESSED) || |
256 | (q->qsystemname & Q_SYSTEM) == 0 || q->klings <= 0)) | |
bab4d182 KM |
257 | break; |
258 | } | |
259 | if (i >= 100) | |
260 | /* can't seem to find one; ignore this call */ | |
261 | break; | |
262 | ||
263 | /* got one!! Schedule its enslavement */ | |
06d69904 KL |
264 | Ship.distressed++; |
265 | e = xsched(E_ENSLV, 1, ix, iy, q->qsystemname); | |
266 | q->qsystemname = (e - Event) | Q_DISTRESSED; | |
bab4d182 KM |
267 | |
268 | /* tell the captain about it if we can */ | |
269 | if (!damaged(SSRADIO)) | |
270 | { | |
271 | printf("\nUhura: Captain, starsystem %s in quadrant %d,%d is under attack\n", | |
272 | Systemname[e->systemname], ix, iy); | |
273 | restcancel++; | |
274 | } | |
275 | else | |
276 | /* if we can't tell him, make it invisible */ | |
06d69904 | 277 | e->evcode |= E_HIDDEN; |
bab4d182 KM |
278 | break; |
279 | ||
280 | case E_ENSLV: /* starsystem is enslaved */ | |
281 | unschedule(e); | |
282 | /* see if current distress call still active */ | |
283 | q = &Quad[e->x][e->y]; | |
284 | if (q->klings <= 0) | |
285 | { | |
286 | /* no Klingons, clean up */ | |
287 | /* restore the system name */ | |
06d69904 | 288 | q->qsystemname = e->systemname; |
bab4d182 KM |
289 | break; |
290 | } | |
291 | ||
292 | /* play stork and schedule the first baby */ | |
293 | e = schedule(E_REPRO, Param.eventdly[E_REPRO] * franf(), e->x, e->y, e->systemname); | |
294 | ||
295 | /* report the disaster if we can */ | |
296 | if (!damaged(SSRADIO)) | |
297 | { | |
298 | printf("\nUhura: We've lost contact with starsystem %s\n", | |
299 | Systemname[e->systemname]); | |
300 | printf(" in quadrant %d,%d.\n", | |
301 | e->x, e->y); | |
302 | } | |
303 | else | |
06d69904 | 304 | e->evcode |= E_HIDDEN; |
bab4d182 KM |
305 | break; |
306 | ||
307 | case E_REPRO: /* Klingon reproduces */ | |
308 | /* see if distress call is still active */ | |
309 | q = &Quad[e->x][e->y]; | |
310 | if (q->klings <= 0) | |
311 | { | |
312 | unschedule(e); | |
06d69904 | 313 | q->qsystemname = e->systemname; |
bab4d182 KM |
314 | break; |
315 | } | |
316 | xresched(e, E_REPRO, 1); | |
317 | /* reproduce one Klingon */ | |
318 | ix = e->x; | |
319 | iy = e->y; | |
320 | if (Now.klings == 127) | |
321 | break; /* full right now */ | |
322 | if (q->klings >= MAXKLQUAD) | |
323 | { | |
324 | /* this quadrant not ok, pick an adjacent one */ | |
325 | for (i = ix - 1; i <= ix + 1; i++) | |
326 | { | |
327 | if (i < 0 || i >= NQUADS) | |
328 | continue; | |
329 | for (j = iy - 1; j <= iy + 1; j++) | |
330 | { | |
331 | if (j < 0 || j >= NQUADS) | |
332 | continue; | |
333 | q = &Quad[i][j]; | |
334 | /* check for this quad ok (not full & no snova) */ | |
335 | if (q->klings >= MAXKLQUAD || q->stars < 0) | |
336 | continue; | |
337 | break; | |
338 | } | |
339 | if (j <= iy + 1) | |
340 | break; | |
341 | } | |
342 | if (j > iy + 1) | |
343 | /* cannot create another yet */ | |
344 | break; | |
345 | ix = i; | |
346 | iy = j; | |
347 | } | |
348 | /* deliver the child */ | |
06d69904 KL |
349 | q->klings++; |
350 | Now.klings++; | |
bab4d182 KM |
351 | if (ix == Ship.quadx && iy == Ship.quady) |
352 | { | |
353 | /* we must position Klingon */ | |
354 | sector(&ix, &iy); | |
355 | Sect[ix][iy] = KLINGON; | |
356 | k = &Etc.klingon[Etc.nkling++]; | |
357 | k->x = ix; | |
358 | k->y = iy; | |
359 | k->power = Param.klingpwr; | |
360 | k->srndreq = 0; | |
361 | compkldist(Etc.klingon[0].dist == Etc.klingon[0].avgdist ? 0 : 1); | |
362 | } | |
363 | ||
364 | /* recompute time left */ | |
365 | Now.time = Now.resource / Now.klings; | |
366 | break; | |
367 | ||
368 | case E_SNAP: /* take a snapshot of the galaxy */ | |
369 | xresched(e, E_SNAP, 1); | |
06d69904 KL |
370 | i = (int) Etc.snapshot; |
371 | i = bmove(Quad, i, sizeof (Quad)); | |
372 | i = bmove(Event, i, sizeof (Event)); | |
9623cd28 | 373 | i = bmove(&Now, i, sizeof (Now)); |
bab4d182 KM |
374 | Game.snap = 1; |
375 | break; | |
376 | ||
377 | case E_ATTACK: /* Klingons attack during rest period */ | |
378 | if (!Move.resting) | |
379 | { | |
380 | unschedule(e); | |
381 | break; | |
382 | } | |
383 | attack(1); | |
384 | reschedule(e, 0.5); | |
385 | break; | |
386 | ||
387 | case E_FIXDV: | |
388 | i = e->systemname; | |
389 | unschedule(e); | |
390 | ||
391 | /* de-damage the device */ | |
392 | printf("%s reports repair work on the %s finished.\n", | |
393 | Device[i].person, Device[i].name); | |
394 | ||
395 | /* handle special processing upon fix */ | |
396 | switch (i) | |
397 | { | |
398 | ||
399 | case LIFESUP: | |
400 | Ship.reserves = Param.reserves; | |
401 | break; | |
402 | ||
403 | case SINS: | |
404 | if (Ship.cond == DOCKED) | |
405 | break; | |
406 | printf("Spock has tried to recalibrate your Space Internal Navigation System,\n"); | |
407 | printf(" but he has no standard base to calibrate to. Suggest you get\n"); | |
408 | printf(" to a starbase immediately so that you can properly recalibrate.\n"); | |
409 | Ship.sinsbad = 1; | |
410 | break; | |
411 | ||
412 | case SSRADIO: | |
413 | restcancel = dumpssradio(); | |
414 | break; | |
415 | } | |
416 | break; | |
417 | ||
418 | default: | |
419 | break; | |
420 | } | |
421 | ||
422 | if (restcancel && Move.resting && getynpar("Spock: Shall we cancel our rest period")) | |
423 | Move.time = xdate - idate; | |
424 | ||
425 | } | |
426 | ||
427 | /* unschedule an attack during a rest period */ | |
428 | if (e = Now.eventptr[E_ATTACK]) | |
429 | unschedule(e); | |
430 | ||
431 | if (!warp) | |
432 | { | |
433 | /* eat up energy if cloaked */ | |
434 | if (Ship.cloaked) | |
06d69904 | 435 | Ship.energy -= Param.cloakenergy * Move.time; |
bab4d182 KM |
436 | |
437 | /* regenerate resources */ | |
438 | rtime = 1.0 - exp(-Param.regenfac * Move.time); | |
06d69904 KL |
439 | Ship.shield += (Param.shield - Ship.shield) * rtime; |
440 | Ship.energy += (Param.energy - Ship.energy) * rtime; | |
bab4d182 KM |
441 | |
442 | /* decrement life support reserves */ | |
443 | if (damaged(LIFESUP) && Ship.cond != DOCKED) | |
06d69904 | 444 | Ship.reserves -= Move.time; |
bab4d182 KM |
445 | } |
446 | return (0); | |
447 | } |