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b6f0a7e4 DF |
1 | /* |
2 | * Copyright (c) 1980 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 | ||
bab4d182 | 7 | #ifndef lint |
b6f0a7e4 | 8 | static char sccsid[] = "@(#)events.c 5.1 (Berkeley) %G%"; |
bab4d182 KM |
9 | #endif not lint |
10 | ||
11 | # include "trek.h" | |
12 | ||
13 | /* | |
14 | ** CAUSE TIME TO ELAPSE | |
15 | ** | |
16 | ** This routine does a hell of a lot. It elapses time, eats up | |
17 | ** energy, regenerates energy, processes any events that occur, | |
18 | ** and so on. | |
19 | */ | |
20 | ||
21 | ||
22 | events(warp) | |
23 | int warp; /* set if called in a time warp */ | |
24 | { | |
25 | register int i; | |
26 | int j; | |
27 | struct kling *k; | |
28 | double rtime; | |
29 | double xdate; | |
30 | double idate; | |
06d69904 | 31 | struct event *ev, *xsched(), *schedule(); |
bab4d182 KM |
32 | int ix, iy; |
33 | register struct quad *q; | |
34 | register struct event *e; | |
35 | int evnum; | |
36 | int restcancel; | |
37 | ||
38 | /* if nothing happened, just allow for any Klingons killed */ | |
39 | if (Move.time <= 0.0) | |
40 | { | |
41 | Now.time = Now.resource / Now.klings; | |
42 | return (0); | |
43 | } | |
44 | ||
45 | /* indicate that the cloaking device is now working */ | |
46 | Ship.cloakgood = 1; | |
47 | ||
48 | /* idate is the initial date */ | |
49 | idate = Now.date; | |
50 | ||
51 | /* schedule attacks if resting too long */ | |
52 | if (Move.time > 0.5 && Move.resting) | |
53 | schedule(E_ATTACK, 0.5, 0, 0, 0); | |
54 | ||
55 | /* scan the event list */ | |
56 | while (1) | |
57 | { | |
58 | restcancel = 0; | |
59 | evnum = -1; | |
60 | /* xdate is the date of the current event */ | |
61 | xdate = idate + Move.time; | |
62 | ||
63 | /* find the first event that has happened */ | |
64 | for (i = 0; i < MAXEVENTS; i++) | |
65 | { | |
66 | e = &Event[i]; | |
67 | if (e->evcode == 0 || (e->evcode & E_GHOST)) | |
68 | continue; | |
69 | if (e->date < xdate) | |
70 | { | |
71 | xdate = e->date; | |
72 | ev = e; | |
73 | evnum = i; | |
74 | } | |
75 | } | |
76 | e = ev; | |
77 | ||
78 | /* find the time between events */ | |
79 | rtime = xdate - Now.date; | |
80 | ||
81 | /* decrement the magic "Federation Resources" pseudo-variable */ | |
06d69904 | 82 | Now.resource -= Now.klings * rtime; |
bab4d182 KM |
83 | /* and recompute the time left */ |
84 | Now.time = Now.resource / Now.klings; | |
85 | ||
86 | /* move us up to the next date */ | |
87 | Now.date = xdate; | |
88 | ||
89 | /* check for out of time */ | |
90 | if (Now.time <= 0.0) | |
91 | lose(L_NOTIME); | |
92 | # ifdef xTRACE | |
93 | if (evnum >= 0 && Trace) | |
94 | printf("xdate = %.2f, evcode %d params %d %d %d\n", | |
95 | xdate, e->evcode, e->x, e->y, e->systemname); | |
96 | # endif | |
97 | ||
98 | /* if evnum < 0, no events occurred */ | |
99 | if (evnum < 0) | |
100 | break; | |
101 | ||
102 | /* otherwise one did. Find out what it is */ | |
103 | switch (e->evcode & E_EVENT) | |
104 | { | |
105 | ||
106 | case E_SNOVA: /* supernova */ | |
107 | /* cause the supernova to happen */ | |
108 | snova(-1); | |
109 | /* and schedule the next one */ | |
110 | xresched(e, E_SNOVA, 1); | |
111 | break; | |
112 | ||
113 | case E_LRTB: /* long range tractor beam */ | |
114 | /* schedule the next one */ | |
115 | xresched(e, E_LRTB, Now.klings); | |
116 | /* LRTB cannot occur if we are docked */ | |
117 | if (Ship.cond != DOCKED) | |
118 | { | |
119 | /* pick a new quadrant */ | |
120 | i = ranf(Now.klings) + 1; | |
121 | for (ix = 0; ix < NQUADS; ix++) | |
122 | { | |
123 | for (iy = 0; iy < NQUADS; iy++) | |
124 | { | |
125 | q = &Quad[ix][iy]; | |
126 | if (q->stars >= 0) | |
06d69904 | 127 | if ((i -= q->klings) <= 0) |
bab4d182 KM |
128 | break; |
129 | } | |
130 | if (i <= 0) | |
131 | break; | |
132 | } | |
133 | ||
134 | /* test for LRTB to same quadrant */ | |
135 | if (Ship.quadx == ix && Ship.quady == iy) | |
136 | break; | |
137 | ||
138 | /* nope, dump him in the new quadrant */ | |
139 | Ship.quadx = ix; | |
140 | Ship.quady = iy; | |
141 | printf("\n%s caught in long range tractor beam\n", Ship.shipname); | |
142 | printf("*** Pulled to quadrant %d,%d\n", Ship.quadx, Ship.quady); | |
143 | Ship.sectx = ranf(NSECTS); | |
144 | Ship.secty = ranf(NSECTS); | |
145 | initquad(0); | |
146 | /* truncate the move time */ | |
147 | Move.time = xdate - idate; | |
148 | } | |
149 | break; | |
150 | ||
151 | case E_KATSB: /* Klingon attacks starbase */ | |
152 | /* if out of bases, forget it */ | |
153 | if (Now.bases <= 0) | |
154 | { | |
155 | unschedule(e); | |
156 | break; | |
157 | } | |
158 | ||
159 | /* check for starbase and Klingons in same quadrant */ | |
160 | for (i = 0; i < Now.bases; i++) | |
161 | { | |
162 | ix = Now.base[i].x; | |
163 | iy = Now.base[i].y; | |
164 | /* see if a Klingon exists in this quadrant */ | |
165 | q = &Quad[ix][iy]; | |
166 | if (q->klings <= 0) | |
167 | continue; | |
168 | ||
169 | /* see if already distressed */ | |
170 | for (j = 0; j < MAXEVENTS; j++) | |
171 | { | |
172 | e = &Event[j]; | |
173 | if ((e->evcode & E_EVENT) != E_KDESB) | |
174 | continue; | |
175 | if (e->x == ix && e->y == iy) | |
176 | break; | |
177 | } | |
178 | if (j < MAXEVENTS) | |
179 | continue; | |
180 | ||
181 | /* got a potential attack */ | |
182 | break; | |
183 | } | |
184 | e = ev; | |
185 | if (i >= Now.bases) | |
186 | { | |
187 | /* not now; wait a while and see if some Klingons move in */ | |
188 | reschedule(e, 0.5 + 3.0 * franf()); | |
189 | break; | |
190 | } | |
191 | /* schedule a new attack, and a destruction of the base */ | |
192 | xresched(e, E_KATSB, 1); | |
193 | e = xsched(E_KDESB, 1, ix, iy, 0); | |
194 | ||
195 | /* report it if we can */ | |
196 | if (!damaged(SSRADIO)) | |
197 | { | |
198 | printf("\nUhura: Captain, we have recieved a distress signal\n"); | |
199 | printf(" from the starbase in quadrant %d,%d.\n", | |
200 | ix, iy); | |
201 | restcancel++; | |
202 | } | |
203 | else | |
204 | /* SSRADIO out, make it so we can't see the distress call */ | |
205 | /* but it's still there!!! */ | |
06d69904 | 206 | e->evcode |= E_HIDDEN; |
bab4d182 KM |
207 | break; |
208 | ||
209 | case E_KDESB: /* Klingon destroys starbase */ | |
210 | unschedule(e); | |
211 | q = &Quad[e->x][e->y]; | |
212 | /* if the base has mysteriously gone away, or if the Klingon | |
213 | got tired and went home, ignore this event */ | |
214 | if (q->bases <=0 || q->klings <= 0) | |
215 | break; | |
216 | /* are we in the same quadrant? */ | |
217 | if (e->x == Ship.quadx && e->y == Ship.quady) | |
218 | { | |
219 | /* yep, kill one in this quadrant */ | |
220 | printf("\nSpock: "); | |
221 | killb(Ship.quadx, Ship.quady); | |
222 | } | |
223 | else | |
224 | /* kill one in some other quadrant */ | |
225 | killb(e->x, e->y); | |
226 | break; | |
227 | ||
228 | case E_ISSUE: /* issue a distress call */ | |
229 | xresched(e, E_ISSUE, 1); | |
230 | /* if we already have too many, throw this one away */ | |
231 | if (Ship.distressed >= MAXDISTR) | |
232 | break; | |
233 | /* try a whole bunch of times to find something suitable */ | |
234 | for (i = 0; i < 100; i++) | |
235 | { | |
236 | ix = ranf(NQUADS); | |
237 | iy = ranf(NQUADS); | |
238 | q = &Quad[ix][iy]; | |
239 | /* need a quadrant which is not the current one, | |
240 | which has some stars which are inhabited and | |
241 | not already under attack, which is not | |
242 | supernova'ed, and which has some Klingons in it */ | |
243 | if (!((ix == Ship.quadx && iy == Ship.quady) || q->stars < 0 || | |
06d69904 KL |
244 | (q->qsystemname & Q_DISTRESSED) || |
245 | (q->qsystemname & Q_SYSTEM) == 0 || q->klings <= 0)) | |
bab4d182 KM |
246 | break; |
247 | } | |
248 | if (i >= 100) | |
249 | /* can't seem to find one; ignore this call */ | |
250 | break; | |
251 | ||
252 | /* got one!! Schedule its enslavement */ | |
06d69904 KL |
253 | Ship.distressed++; |
254 | e = xsched(E_ENSLV, 1, ix, iy, q->qsystemname); | |
255 | q->qsystemname = (e - Event) | Q_DISTRESSED; | |
bab4d182 KM |
256 | |
257 | /* tell the captain about it if we can */ | |
258 | if (!damaged(SSRADIO)) | |
259 | { | |
260 | printf("\nUhura: Captain, starsystem %s in quadrant %d,%d is under attack\n", | |
261 | Systemname[e->systemname], ix, iy); | |
262 | restcancel++; | |
263 | } | |
264 | else | |
265 | /* if we can't tell him, make it invisible */ | |
06d69904 | 266 | e->evcode |= E_HIDDEN; |
bab4d182 KM |
267 | break; |
268 | ||
269 | case E_ENSLV: /* starsystem is enslaved */ | |
270 | unschedule(e); | |
271 | /* see if current distress call still active */ | |
272 | q = &Quad[e->x][e->y]; | |
273 | if (q->klings <= 0) | |
274 | { | |
275 | /* no Klingons, clean up */ | |
276 | /* restore the system name */ | |
06d69904 | 277 | q->qsystemname = e->systemname; |
bab4d182 KM |
278 | break; |
279 | } | |
280 | ||
281 | /* play stork and schedule the first baby */ | |
282 | e = schedule(E_REPRO, Param.eventdly[E_REPRO] * franf(), e->x, e->y, e->systemname); | |
283 | ||
284 | /* report the disaster if we can */ | |
285 | if (!damaged(SSRADIO)) | |
286 | { | |
287 | printf("\nUhura: We've lost contact with starsystem %s\n", | |
288 | Systemname[e->systemname]); | |
289 | printf(" in quadrant %d,%d.\n", | |
290 | e->x, e->y); | |
291 | } | |
292 | else | |
06d69904 | 293 | e->evcode |= E_HIDDEN; |
bab4d182 KM |
294 | break; |
295 | ||
296 | case E_REPRO: /* Klingon reproduces */ | |
297 | /* see if distress call is still active */ | |
298 | q = &Quad[e->x][e->y]; | |
299 | if (q->klings <= 0) | |
300 | { | |
301 | unschedule(e); | |
06d69904 | 302 | q->qsystemname = e->systemname; |
bab4d182 KM |
303 | break; |
304 | } | |
305 | xresched(e, E_REPRO, 1); | |
306 | /* reproduce one Klingon */ | |
307 | ix = e->x; | |
308 | iy = e->y; | |
309 | if (Now.klings == 127) | |
310 | break; /* full right now */ | |
311 | if (q->klings >= MAXKLQUAD) | |
312 | { | |
313 | /* this quadrant not ok, pick an adjacent one */ | |
314 | for (i = ix - 1; i <= ix + 1; i++) | |
315 | { | |
316 | if (i < 0 || i >= NQUADS) | |
317 | continue; | |
318 | for (j = iy - 1; j <= iy + 1; j++) | |
319 | { | |
320 | if (j < 0 || j >= NQUADS) | |
321 | continue; | |
322 | q = &Quad[i][j]; | |
323 | /* check for this quad ok (not full & no snova) */ | |
324 | if (q->klings >= MAXKLQUAD || q->stars < 0) | |
325 | continue; | |
326 | break; | |
327 | } | |
328 | if (j <= iy + 1) | |
329 | break; | |
330 | } | |
331 | if (j > iy + 1) | |
332 | /* cannot create another yet */ | |
333 | break; | |
334 | ix = i; | |
335 | iy = j; | |
336 | } | |
337 | /* deliver the child */ | |
06d69904 KL |
338 | q->klings++; |
339 | Now.klings++; | |
bab4d182 KM |
340 | if (ix == Ship.quadx && iy == Ship.quady) |
341 | { | |
342 | /* we must position Klingon */ | |
343 | sector(&ix, &iy); | |
344 | Sect[ix][iy] = KLINGON; | |
345 | k = &Etc.klingon[Etc.nkling++]; | |
346 | k->x = ix; | |
347 | k->y = iy; | |
348 | k->power = Param.klingpwr; | |
349 | k->srndreq = 0; | |
350 | compkldist(Etc.klingon[0].dist == Etc.klingon[0].avgdist ? 0 : 1); | |
351 | } | |
352 | ||
353 | /* recompute time left */ | |
354 | Now.time = Now.resource / Now.klings; | |
355 | break; | |
356 | ||
357 | case E_SNAP: /* take a snapshot of the galaxy */ | |
358 | xresched(e, E_SNAP, 1); | |
06d69904 KL |
359 | i = (int) Etc.snapshot; |
360 | i = bmove(Quad, i, sizeof (Quad)); | |
361 | i = bmove(Event, i, sizeof (Event)); | |
9623cd28 | 362 | i = bmove(&Now, i, sizeof (Now)); |
bab4d182 KM |
363 | Game.snap = 1; |
364 | break; | |
365 | ||
366 | case E_ATTACK: /* Klingons attack during rest period */ | |
367 | if (!Move.resting) | |
368 | { | |
369 | unschedule(e); | |
370 | break; | |
371 | } | |
372 | attack(1); | |
373 | reschedule(e, 0.5); | |
374 | break; | |
375 | ||
376 | case E_FIXDV: | |
377 | i = e->systemname; | |
378 | unschedule(e); | |
379 | ||
380 | /* de-damage the device */ | |
381 | printf("%s reports repair work on the %s finished.\n", | |
382 | Device[i].person, Device[i].name); | |
383 | ||
384 | /* handle special processing upon fix */ | |
385 | switch (i) | |
386 | { | |
387 | ||
388 | case LIFESUP: | |
389 | Ship.reserves = Param.reserves; | |
390 | break; | |
391 | ||
392 | case SINS: | |
393 | if (Ship.cond == DOCKED) | |
394 | break; | |
395 | printf("Spock has tried to recalibrate your Space Internal Navigation System,\n"); | |
396 | printf(" but he has no standard base to calibrate to. Suggest you get\n"); | |
397 | printf(" to a starbase immediately so that you can properly recalibrate.\n"); | |
398 | Ship.sinsbad = 1; | |
399 | break; | |
400 | ||
401 | case SSRADIO: | |
402 | restcancel = dumpssradio(); | |
403 | break; | |
404 | } | |
405 | break; | |
406 | ||
407 | default: | |
408 | break; | |
409 | } | |
410 | ||
411 | if (restcancel && Move.resting && getynpar("Spock: Shall we cancel our rest period")) | |
412 | Move.time = xdate - idate; | |
413 | ||
414 | } | |
415 | ||
416 | /* unschedule an attack during a rest period */ | |
417 | if (e = Now.eventptr[E_ATTACK]) | |
418 | unschedule(e); | |
419 | ||
420 | if (!warp) | |
421 | { | |
422 | /* eat up energy if cloaked */ | |
423 | if (Ship.cloaked) | |
06d69904 | 424 | Ship.energy -= Param.cloakenergy * Move.time; |
bab4d182 KM |
425 | |
426 | /* regenerate resources */ | |
427 | rtime = 1.0 - exp(-Param.regenfac * Move.time); | |
06d69904 KL |
428 | Ship.shield += (Param.shield - Ship.shield) * rtime; |
429 | Ship.energy += (Param.energy - Ship.energy) * rtime; | |
bab4d182 KM |
430 | |
431 | /* decrement life support reserves */ | |
432 | if (damaged(LIFESUP) && Ship.cond != DOCKED) | |
06d69904 | 433 | Ship.reserves -= Move.time; |
bab4d182 KM |
434 | } |
435 | return (0); | |
436 | } |