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freebsd/games/trek/events.c
Jordan K. Hubbard 554eb505f8 Bring in the 4.4 Lite games directory, modulo man page changes and segregation 
of the x11 based games.  I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way.  Bleah.
Submitted by:	jkh
1994-09-04 04:03:31 +00:00

464 lines
12 KiB
C
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/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)events.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
# include "trek.h"
/*
** CAUSE TIME TO ELAPSE
**
** This routine does a hell of a lot. It elapses time, eats up
** energy, regenerates energy, processes any events that occur,
** and so on.
*/
events(warp)
int warp; /* set if called in a time warp */
{
register int i;
int j;
struct kling *k;
double rtime;
double xdate;
double idate;
struct event *ev, *xsched(), *schedule();
int ix, iy;
register struct quad *q;
register struct event *e;
int evnum;
int restcancel;
/* if nothing happened, just allow for any Klingons killed */
if (Move.time <= 0.0)
{
Now.time = Now.resource / Now.klings;
return (0);
}
/* indicate that the cloaking device is now working */
Ship.cloakgood = 1;
/* idate is the initial date */
idate = Now.date;
/* schedule attacks if resting too long */
if (Move.time > 0.5 && Move.resting)
schedule(E_ATTACK, 0.5, 0, 0, 0);
/* scan the event list */
while (1)
{
restcancel = 0;
evnum = -1;
/* xdate is the date of the current event */
xdate = idate + Move.time;
/* find the first event that has happened */
for (i = 0; i < MAXEVENTS; i++)
{
e = &Event[i];
if (e->evcode == 0 || (e->evcode & E_GHOST))
continue;
if (e->date < xdate)
{
xdate = e->date;
ev = e;
evnum = i;
}
}
e = ev;
/* find the time between events */
rtime = xdate - Now.date;
/* decrement the magic "Federation Resources" pseudo-variable */
Now.resource -= Now.klings * rtime;
/* and recompute the time left */
Now.time = Now.resource / Now.klings;
/* move us up to the next date */
Now.date = xdate;
/* check for out of time */
if (Now.time <= 0.0)
lose(L_NOTIME);
# ifdef xTRACE
if (evnum >= 0 && Trace)
printf("xdate = %.2f, evcode %d params %d %d %d\n",
xdate, e->evcode, e->x, e->y, e->systemname);
# endif
/* if evnum < 0, no events occurred */
if (evnum < 0)
break;
/* otherwise one did. Find out what it is */
switch (e->evcode & E_EVENT)
{
case E_SNOVA: /* supernova */
/* cause the supernova to happen */
snova(-1);
/* and schedule the next one */
xresched(e, E_SNOVA, 1);
break;
case E_LRTB: /* long range tractor beam */
/* schedule the next one */
xresched(e, E_LRTB, Now.klings);
/* LRTB cannot occur if we are docked */
if (Ship.cond != DOCKED)
{
/* pick a new quadrant */
i = ranf(Now.klings) + 1;
for (ix = 0; ix < NQUADS; ix++)
{
for (iy = 0; iy < NQUADS; iy++)
{
q = &Quad[ix][iy];
if (q->stars >= 0)
if ((i -= q->klings) <= 0)
break;
}
if (i <= 0)
break;
}
/* test for LRTB to same quadrant */
if (Ship.quadx == ix && Ship.quady == iy)
break;
/* nope, dump him in the new quadrant */
Ship.quadx = ix;
Ship.quady = iy;
printf("\n%s caught in long range tractor beam\n", Ship.shipname);
printf("*** Pulled to quadrant %d,%d\n", Ship.quadx, Ship.quady);
Ship.sectx = ranf(NSECTS);
Ship.secty = ranf(NSECTS);
initquad(0);
/* truncate the move time */
Move.time = xdate - idate;
}
break;
case E_KATSB: /* Klingon attacks starbase */
/* if out of bases, forget it */
if (Now.bases <= 0)
{
unschedule(e);
break;
}
/* check for starbase and Klingons in same quadrant */
for (i = 0; i < Now.bases; i++)
{
ix = Now.base[i].x;
iy = Now.base[i].y;
/* see if a Klingon exists in this quadrant */
q = &Quad[ix][iy];
if (q->klings <= 0)
continue;
/* see if already distressed */
for (j = 0; j < MAXEVENTS; j++)
{
e = &Event[j];
if ((e->evcode & E_EVENT) != E_KDESB)
continue;
if (e->x == ix && e->y == iy)
break;
}
if (j < MAXEVENTS)
continue;
/* got a potential attack */
break;
}
e = ev;
if (i >= Now.bases)
{
/* not now; wait a while and see if some Klingons move in */
reschedule(e, 0.5 + 3.0 * franf());
break;
}
/* schedule a new attack, and a destruction of the base */
xresched(e, E_KATSB, 1);
e = xsched(E_KDESB, 1, ix, iy, 0);
/* report it if we can */
if (!damaged(SSRADIO))
{
printf("\nUhura: Captain, we have recieved a distress signal\n");
printf(" from the starbase in quadrant %d,%d.\n",
ix, iy);
restcancel++;
}
else
/* SSRADIO out, make it so we can't see the distress call */
/* but it's still there!!! */
e->evcode |= E_HIDDEN;
break;
case E_KDESB: /* Klingon destroys starbase */
unschedule(e);
q = &Quad[e->x][e->y];
/* if the base has mysteriously gone away, or if the Klingon
got tired and went home, ignore this event */
if (q->bases <=0 || q->klings <= 0)
break;
/* are we in the same quadrant? */
if (e->x == Ship.quadx && e->y == Ship.quady)
{
/* yep, kill one in this quadrant */
printf("\nSpock: ");
killb(Ship.quadx, Ship.quady);
}
else
/* kill one in some other quadrant */
killb(e->x, e->y);
break;
case E_ISSUE: /* issue a distress call */
xresched(e, E_ISSUE, 1);
/* if we already have too many, throw this one away */
if (Ship.distressed >= MAXDISTR)
break;
/* try a whole bunch of times to find something suitable */
for (i = 0; i < 100; i++)
{
ix = ranf(NQUADS);
iy = ranf(NQUADS);
q = &Quad[ix][iy];
/* need a quadrant which is not the current one,
which has some stars which are inhabited and
not already under attack, which is not
supernova'ed, and which has some Klingons in it */
if (!((ix == Ship.quadx && iy == Ship.quady) || q->stars < 0 ||
(q->qsystemname & Q_DISTRESSED) ||
(q->qsystemname & Q_SYSTEM) == 0 || q->klings <= 0))
break;
}
if (i >= 100)
/* can't seem to find one; ignore this call */
break;
/* got one!! Schedule its enslavement */
Ship.distressed++;
e = xsched(E_ENSLV, 1, ix, iy, q->qsystemname);
q->qsystemname = (e - Event) | Q_DISTRESSED;
/* tell the captain about it if we can */
if (!damaged(SSRADIO))
{
printf("\nUhura: Captain, starsystem %s in quadrant %d,%d is under attack\n",
Systemname[e->systemname], ix, iy);
restcancel++;
}
else
/* if we can't tell him, make it invisible */
e->evcode |= E_HIDDEN;
break;
case E_ENSLV: /* starsystem is enslaved */
unschedule(e);
/* see if current distress call still active */
q = &Quad[e->x][e->y];
if (q->klings <= 0)
{
/* no Klingons, clean up */
/* restore the system name */
q->qsystemname = e->systemname;
break;
}
/* play stork and schedule the first baby */
e = schedule(E_REPRO, Param.eventdly[E_REPRO] * franf(), e->x, e->y, e->systemname);
/* report the disaster if we can */
if (!damaged(SSRADIO))
{
printf("\nUhura: We've lost contact with starsystem %s\n",
Systemname[e->systemname]);
printf(" in quadrant %d,%d.\n",
e->x, e->y);
}
else
e->evcode |= E_HIDDEN;
break;
case E_REPRO: /* Klingon reproduces */
/* see if distress call is still active */
q = &Quad[e->x][e->y];
if (q->klings <= 0)
{
unschedule(e);
q->qsystemname = e->systemname;
break;
}
xresched(e, E_REPRO, 1);
/* reproduce one Klingon */
ix = e->x;
iy = e->y;
if (Now.klings == 127)
break; /* full right now */
if (q->klings >= MAXKLQUAD)
{
/* this quadrant not ok, pick an adjacent one */
for (i = ix - 1; i <= ix + 1; i++)
{
if (i < 0 || i >= NQUADS)
continue;
for (j = iy - 1; j <= iy + 1; j++)
{
if (j < 0 || j >= NQUADS)
continue;
q = &Quad[i][j];
/* check for this quad ok (not full & no snova) */
if (q->klings >= MAXKLQUAD || q->stars < 0)
continue;
break;
}
if (j <= iy + 1)
break;
}
if (j > iy + 1)
/* cannot create another yet */
break;
ix = i;
iy = j;
}
/* deliver the child */
q->klings++;
Now.klings++;
if (ix == Ship.quadx && iy == Ship.quady)
{
/* we must position Klingon */
sector(&ix, &iy);
Sect[ix][iy] = KLINGON;
k = &Etc.klingon[Etc.nkling++];
k->x = ix;
k->y = iy;
k->power = Param.klingpwr;
k->srndreq = 0;
compkldist(Etc.klingon[0].dist == Etc.klingon[0].avgdist ? 0 : 1);
}
/* recompute time left */
Now.time = Now.resource / Now.klings;
break;
case E_SNAP: /* take a snapshot of the galaxy */
xresched(e, E_SNAP, 1);
i = (int) Etc.snapshot;
i = bmove(Quad, i, sizeof (Quad));
i = bmove(Event, i, sizeof (Event));
i = bmove(&Now, i, sizeof (Now));
Game.snap = 1;
break;
case E_ATTACK: /* Klingons attack during rest period */
if (!Move.resting)
{
unschedule(e);
break;
}
attack(1);
reschedule(e, 0.5);
break;
case E_FIXDV:
i = e->systemname;
unschedule(e);
/* de-damage the device */
printf("%s reports repair work on the %s finished.\n",
Device[i].person, Device[i].name);
/* handle special processing upon fix */
switch (i)
{
case LIFESUP:
Ship.reserves = Param.reserves;
break;
case SINS:
if (Ship.cond == DOCKED)
break;
printf("Spock has tried to recalibrate your Space Internal Navigation System,\n");
printf(" but he has no standard base to calibrate to. Suggest you get\n");
printf(" to a starbase immediately so that you can properly recalibrate.\n");
Ship.sinsbad = 1;
break;
case SSRADIO:
restcancel = dumpssradio();
break;
}
break;
default:
break;
}
if (restcancel && Move.resting && getynpar("Spock: Shall we cancel our rest period"))
Move.time = xdate - idate;
}
/* unschedule an attack during a rest period */
if (e = Now.eventptr[E_ATTACK])
unschedule(e);
if (!warp)
{
/* eat up energy if cloaked */
if (Ship.cloaked)
Ship.energy -= Param.cloakenergy * Move.time;
/* regenerate resources */
rtime = 1.0 - exp(-Param.regenfac * Move.time);
Ship.shield += (Param.shield - Ship.shield) * rtime;
Ship.energy += (Param.energy - Ship.energy) * rtime;
/* decrement life support reserves */
if (damaged(LIFESUP) && Ship.cond != DOCKED)
Ship.reserves -= Move.time;
}
return (0);
}
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