1 /* @(#)events.c 8.1 (Berkeley) 5/31/93 */
2 /* $NetBSD: events.c,v 1.11 2009/05/24 22:55:03 dholland Exp $ */
5 * Copyright (c) 1980, 1993
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40 ** CAUSE TIME TO ELAPSE
42 ** This routine does a hell of a lot. It elapses time, eats up
43 ** energy, regenerates energy, processes any events that occur,
46 ** 'timewarp' is set if called in a time warp.
59 struct event *ev = NULL;
66 /* if nothing happened, just allow for any Klingons killed */
67 if (Move.time <= 0.0) {
68 Now.time = Now.resource / Now.klings;
72 /* indicate that the cloaking device is now working */
75 /* idate is the initial date */
78 /* schedule attacks if resting too long */
79 if (Move.time > 0.5 && Move.resting)
80 schedule(E_ATTACK, 0.5, 0, 0, 0);
82 /* scan the event list */
86 /* xdate is the date of the current event */
87 xdate = idate + Move.time;
89 /* find the first event that has happened */
90 for (i = 0; i < MAXEVENTS; i++) {
92 if (e->evcode == 0 || (e->evcode & E_GHOST))
94 if (e->date < xdate) {
102 /* find the time between events */
103 rtime = xdate - Now.date;
105 /* decrement the magic "Federation Resources" pseudo-variable */
106 Now.resource -= Now.klings * rtime;
107 /* and recompute the time left */
108 Now.time = Now.resource / Now.klings;
110 /* move us up to the next date */
113 /* check for out of time */
117 if (evnum >= 0 && Trace)
118 printf("xdate = %.2f, evcode %d params %d %d %d\n",
119 xdate, e->evcode, e->x, e->y, e->systemname);
122 /* if evnum < 0, no events occurred */
126 /* otherwise one did. Find out what it is */
127 switch (e->evcode & E_EVENT) {
129 case E_SNOVA: /* supernova */
130 /* cause the supernova to happen */
132 /* and schedule the next one */
133 xresched(e, E_SNOVA, 1);
136 case E_LRTB: /* long range tractor beam */
137 /* schedule the next one */
138 xresched(e, E_LRTB, Now.klings);
139 /* LRTB cannot occur if we are docked */
140 if (Ship.cond != DOCKED) {
141 /* pick a new quadrant */
142 i = ranf(Now.klings) + 1;
143 for (ix = 0; ix < NQUADS; ix++) {
144 for (iy = 0; iy < NQUADS; iy++) {
155 /* test for LRTB to same quadrant */
156 if (Ship.quadx == ix && Ship.quady == iy)
159 /* nope, dump him in the new quadrant */
162 printf("\n%s caught in long range tractor "
165 printf("*** Pulled to quadrant %d,%d\n",
166 Ship.quadx, Ship.quady);
167 Ship.sectx = ranf(NSECTS);
168 Ship.secty = ranf(NSECTS);
170 /* truncate the move time */
171 Move.time = xdate - idate;
175 case E_KATSB: /* Klingon attacks starbase */
176 /* if out of bases, forget it */
177 if (Now.bases <= 0) {
182 /* check for starbase and Klingons in same quadrant */
183 for (i = 0; i < Now.bases; i++) {
186 /* see if a Klingon exists in this quadrant */
191 /* see if already distressed */
192 for (j = 0; j < MAXEVENTS; j++) {
194 if ((e->evcode & E_EVENT) != E_KDESB)
196 if (e->x == ix && e->y == iy)
202 /* got a potential attack */
206 if (i >= Now.bases) {
208 * not now; wait a while and see if
209 * some Klingons move in
211 reschedule(e, 0.5 + 3.0 * franf());
215 * schedule a new attack, and a destruction of
218 xresched(e, E_KATSB, 1);
219 e = xsched(E_KDESB, 1, ix, iy, 0);
221 /* report it if we can */
222 if (!damaged(SSRADIO)) {
223 printf("\nUhura: Captain, we have received a "
224 "distress signal\n");
225 printf(" from the starbase in quadrant "
231 * SSRADIO out, make it so we can't see the
232 * distress call but it's still there!!!
234 e->evcode |= E_HIDDEN;
238 case E_KDESB: /* Klingon destroys starbase */
240 q = &Quad[e->x][e->y];
242 * if the base has mysteriously gone away, or if the
243 * Klingon got tired and went home, ignore this event
245 if (q->bases <=0 || q->klings <= 0)
247 /* are we in the same quadrant? */
248 if (e->x == Ship.quadx && e->y == Ship.quady) {
249 /* yep, kill one in this quadrant */
251 killb(Ship.quadx, Ship.quady);
253 /* kill one in some other quadrant */
258 case E_ISSUE: /* issue a distress call */
259 xresched(e, E_ISSUE, 1);
260 /* if we already have too many, throw this one away */
261 if (Ship.distressed >= MAXDISTR)
263 /* try a bunch of times to find something suitable */
264 for (i = 0; i < 100; i++) {
269 * need a quadrant which is not the current
270 * one, which has some inhabited stars which
271 * are not already under attack, which is not
272 * supernova'ed, and which has some Klingons
275 if (!((ix == Ship.quadx && iy == Ship.quady) ||
277 (q->qsystemname & Q_DISTRESSED) ||
278 (q->qsystemname & Q_SYSTEM) == 0 ||
283 /* can't seem to find one; ignore this call */
286 /* got one!! Schedule its enslavement */
288 e = xsched(E_ENSLV, 1, ix, iy, q->qsystemname);
289 q->qsystemname = (e - Event) | Q_DISTRESSED;
291 /* tell the captain about it if we can */
292 if (!damaged(SSRADIO)) {
293 printf("\nUhura: Captain, starsystem %s in "
294 "quadrant %d,%d is under attack\n",
295 Systemname[e->systemname], ix, iy);
298 /* if we can't tell him, make it invisible */
299 e->evcode |= E_HIDDEN;
303 case E_ENSLV: /* starsystem is enslaved */
305 /* see if current distress call still active */
306 q = &Quad[e->x][e->y];
307 if (q->klings <= 0) {
308 /* no Klingons, clean up */
309 /* restore the system name */
310 q->qsystemname = e->systemname;
314 /* play stork and schedule the first baby */
315 e = schedule(E_REPRO, Param.eventdly[E_REPRO] * franf(),
316 e->x, e->y, e->systemname);
318 /* report the disaster if we can */
319 if (!damaged(SSRADIO)) {
320 printf("\nUhura: We've lost contact with "
322 Systemname[e->systemname]);
323 printf(" in quadrant %d,%d.\n",
326 e->evcode |= E_HIDDEN;
329 case E_REPRO: /* Klingon reproduces */
330 /* see if distress call is still active */
331 q = &Quad[e->x][e->y];
332 if (q->klings <= 0) {
334 q->qsystemname = e->systemname;
337 xresched(e, E_REPRO, 1);
338 /* reproduce one Klingon */
341 if (Now.klings == 127) {
345 if (q->klings >= MAXKLQUAD) {
346 /* this quadrant not ok, pick an adjacent one */
347 for (i = ix - 1; i <= ix + 1; i++) {
348 if (i < 0 || i >= NQUADS)
350 for (j = iy - 1; j <= iy + 1; j++) {
351 if (j < 0 || j >= NQUADS)
355 * check for this quad ok (not
358 if (q->klings >= MAXKLQUAD ||
367 /* cannot create another yet */
372 /* deliver the child */
375 if (ix == Ship.quadx && iy == Ship.quady) {
376 /* we must position Klingon */
378 Sect[ix][iy] = KLINGON;
379 k = &Etc.klingon[Etc.nkling++];
382 k->power = Param.klingpwr;
384 compkldist(Etc.klingon[0].dist ==
385 Etc.klingon[0].avgdist ? 0 : 1);
388 /* recompute time left */
389 Now.time = Now.resource / Now.klings;
392 case E_SNAP: /* take a snapshot of the galaxy */
393 xresched(e, E_SNAP, 1);
394 p = (char *) Etc.snapshot;
395 memcpy(p, Quad, sizeof (Quad));
397 memcpy(p, Event, sizeof (Event));
399 memcpy(p, &Now, sizeof (Now));
403 case E_ATTACK: /* Klingons attack during rest period */
416 /* de-damage the device */
417 printf("%s reports repair work on the %s finished.\n",
418 Device[i].person, Device[i].name);
420 /* handle special processing upon fix */
424 Ship.reserves = Param.reserves;
428 if (Ship.cond == DOCKED)
430 printf("Spock has tried to recalibrate your "
431 "Space Internal Navigation System,\n");
432 printf(" but he has no standard base to "
433 "calibrate to. Suggest you get\n");
434 printf(" to a starbase immediately so that "
435 "you can properly recalibrate.\n");
440 restcancel = dumpssradio();
449 if (restcancel && Move.resting &&
450 getynpar("Spock: Shall we cancel our rest period"))
451 Move.time = xdate - idate;
455 /* unschedule an attack during a rest period */
456 if ((e = Now.eventptr[E_ATTACK]) != NULL)
460 /* eat up energy if cloaked */
462 Ship.energy -= Param.cloakenergy * Move.time;
464 /* regenerate resources */
465 rtime = 1.0 - exp(-Param.regenfac * Move.time);
466 Ship.shield += (Param.shield - Ship.shield) * rtime;
467 Ship.energy += (Param.energy - Ship.energy) * rtime;
469 /* decrement life support reserves */
470 if (damaged(LIFESUP) && Ship.cond != DOCKED)
471 Ship.reserves -= Move.time;