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https://github.com/freebsd/freebsd-src
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554eb505f8
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
463 lines
12 KiB
C
463 lines
12 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)events.c 8.1 (Berkeley) 5/31/93";
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#endif /* not lint */
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# include "trek.h"
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/*
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** CAUSE TIME TO ELAPSE
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**
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** This routine does a hell of a lot. It elapses time, eats up
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** energy, regenerates energy, processes any events that occur,
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** and so on.
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*/
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events(warp)
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int warp; /* set if called in a time warp */
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{
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register int i;
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int j;
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struct kling *k;
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double rtime;
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double xdate;
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double idate;
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struct event *ev, *xsched(), *schedule();
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int ix, iy;
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register struct quad *q;
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register struct event *e;
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int evnum;
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int restcancel;
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/* if nothing happened, just allow for any Klingons killed */
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if (Move.time <= 0.0)
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{
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Now.time = Now.resource / Now.klings;
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return (0);
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}
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/* indicate that the cloaking device is now working */
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Ship.cloakgood = 1;
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/* idate is the initial date */
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idate = Now.date;
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/* schedule attacks if resting too long */
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if (Move.time > 0.5 && Move.resting)
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schedule(E_ATTACK, 0.5, 0, 0, 0);
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/* scan the event list */
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while (1)
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{
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restcancel = 0;
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evnum = -1;
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/* xdate is the date of the current event */
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xdate = idate + Move.time;
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/* find the first event that has happened */
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for (i = 0; i < MAXEVENTS; i++)
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{
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e = &Event[i];
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if (e->evcode == 0 || (e->evcode & E_GHOST))
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continue;
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if (e->date < xdate)
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{
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xdate = e->date;
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ev = e;
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evnum = i;
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}
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}
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e = ev;
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/* find the time between events */
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rtime = xdate - Now.date;
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/* decrement the magic "Federation Resources" pseudo-variable */
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Now.resource -= Now.klings * rtime;
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/* and recompute the time left */
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Now.time = Now.resource / Now.klings;
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/* move us up to the next date */
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Now.date = xdate;
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/* check for out of time */
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if (Now.time <= 0.0)
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lose(L_NOTIME);
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# ifdef xTRACE
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if (evnum >= 0 && Trace)
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printf("xdate = %.2f, evcode %d params %d %d %d\n",
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xdate, e->evcode, e->x, e->y, e->systemname);
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# endif
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/* if evnum < 0, no events occurred */
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if (evnum < 0)
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break;
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/* otherwise one did. Find out what it is */
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switch (e->evcode & E_EVENT)
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{
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case E_SNOVA: /* supernova */
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/* cause the supernova to happen */
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snova(-1);
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/* and schedule the next one */
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xresched(e, E_SNOVA, 1);
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break;
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case E_LRTB: /* long range tractor beam */
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/* schedule the next one */
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xresched(e, E_LRTB, Now.klings);
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/* LRTB cannot occur if we are docked */
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if (Ship.cond != DOCKED)
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{
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/* pick a new quadrant */
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i = ranf(Now.klings) + 1;
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for (ix = 0; ix < NQUADS; ix++)
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{
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for (iy = 0; iy < NQUADS; iy++)
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{
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q = &Quad[ix][iy];
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if (q->stars >= 0)
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if ((i -= q->klings) <= 0)
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break;
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}
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if (i <= 0)
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break;
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}
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/* test for LRTB to same quadrant */
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if (Ship.quadx == ix && Ship.quady == iy)
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break;
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/* nope, dump him in the new quadrant */
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Ship.quadx = ix;
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Ship.quady = iy;
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printf("\n%s caught in long range tractor beam\n", Ship.shipname);
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printf("*** Pulled to quadrant %d,%d\n", Ship.quadx, Ship.quady);
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Ship.sectx = ranf(NSECTS);
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Ship.secty = ranf(NSECTS);
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initquad(0);
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/* truncate the move time */
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Move.time = xdate - idate;
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}
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break;
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case E_KATSB: /* Klingon attacks starbase */
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/* if out of bases, forget it */
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if (Now.bases <= 0)
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{
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unschedule(e);
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break;
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}
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/* check for starbase and Klingons in same quadrant */
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for (i = 0; i < Now.bases; i++)
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{
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ix = Now.base[i].x;
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iy = Now.base[i].y;
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/* see if a Klingon exists in this quadrant */
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q = &Quad[ix][iy];
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if (q->klings <= 0)
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continue;
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/* see if already distressed */
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for (j = 0; j < MAXEVENTS; j++)
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{
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e = &Event[j];
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if ((e->evcode & E_EVENT) != E_KDESB)
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continue;
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if (e->x == ix && e->y == iy)
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break;
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}
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if (j < MAXEVENTS)
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continue;
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/* got a potential attack */
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break;
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}
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e = ev;
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if (i >= Now.bases)
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{
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/* not now; wait a while and see if some Klingons move in */
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reschedule(e, 0.5 + 3.0 * franf());
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break;
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}
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/* schedule a new attack, and a destruction of the base */
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xresched(e, E_KATSB, 1);
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e = xsched(E_KDESB, 1, ix, iy, 0);
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/* report it if we can */
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if (!damaged(SSRADIO))
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{
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printf("\nUhura: Captain, we have recieved a distress signal\n");
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printf(" from the starbase in quadrant %d,%d.\n",
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ix, iy);
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restcancel++;
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}
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else
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/* SSRADIO out, make it so we can't see the distress call */
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/* but it's still there!!! */
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e->evcode |= E_HIDDEN;
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break;
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case E_KDESB: /* Klingon destroys starbase */
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unschedule(e);
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q = &Quad[e->x][e->y];
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/* if the base has mysteriously gone away, or if the Klingon
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got tired and went home, ignore this event */
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if (q->bases <=0 || q->klings <= 0)
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break;
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/* are we in the same quadrant? */
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if (e->x == Ship.quadx && e->y == Ship.quady)
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{
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/* yep, kill one in this quadrant */
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printf("\nSpock: ");
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killb(Ship.quadx, Ship.quady);
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}
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else
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/* kill one in some other quadrant */
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killb(e->x, e->y);
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break;
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case E_ISSUE: /* issue a distress call */
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xresched(e, E_ISSUE, 1);
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/* if we already have too many, throw this one away */
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if (Ship.distressed >= MAXDISTR)
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break;
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/* try a whole bunch of times to find something suitable */
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for (i = 0; i < 100; i++)
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{
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ix = ranf(NQUADS);
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iy = ranf(NQUADS);
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q = &Quad[ix][iy];
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/* need a quadrant which is not the current one,
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which has some stars which are inhabited and
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not already under attack, which is not
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supernova'ed, and which has some Klingons in it */
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if (!((ix == Ship.quadx && iy == Ship.quady) || q->stars < 0 ||
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(q->qsystemname & Q_DISTRESSED) ||
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(q->qsystemname & Q_SYSTEM) == 0 || q->klings <= 0))
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break;
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}
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if (i >= 100)
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/* can't seem to find one; ignore this call */
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break;
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/* got one!! Schedule its enslavement */
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Ship.distressed++;
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e = xsched(E_ENSLV, 1, ix, iy, q->qsystemname);
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q->qsystemname = (e - Event) | Q_DISTRESSED;
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/* tell the captain about it if we can */
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if (!damaged(SSRADIO))
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{
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printf("\nUhura: Captain, starsystem %s in quadrant %d,%d is under attack\n",
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Systemname[e->systemname], ix, iy);
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restcancel++;
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}
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else
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/* if we can't tell him, make it invisible */
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e->evcode |= E_HIDDEN;
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break;
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case E_ENSLV: /* starsystem is enslaved */
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unschedule(e);
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/* see if current distress call still active */
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q = &Quad[e->x][e->y];
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if (q->klings <= 0)
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{
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/* no Klingons, clean up */
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/* restore the system name */
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q->qsystemname = e->systemname;
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break;
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}
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/* play stork and schedule the first baby */
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e = schedule(E_REPRO, Param.eventdly[E_REPRO] * franf(), e->x, e->y, e->systemname);
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/* report the disaster if we can */
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if (!damaged(SSRADIO))
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{
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printf("\nUhura: We've lost contact with starsystem %s\n",
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Systemname[e->systemname]);
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printf(" in quadrant %d,%d.\n",
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e->x, e->y);
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}
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else
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e->evcode |= E_HIDDEN;
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break;
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case E_REPRO: /* Klingon reproduces */
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/* see if distress call is still active */
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q = &Quad[e->x][e->y];
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if (q->klings <= 0)
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{
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unschedule(e);
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q->qsystemname = e->systemname;
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break;
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}
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xresched(e, E_REPRO, 1);
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/* reproduce one Klingon */
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ix = e->x;
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iy = e->y;
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if (Now.klings == 127)
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break; /* full right now */
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if (q->klings >= MAXKLQUAD)
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{
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/* this quadrant not ok, pick an adjacent one */
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for (i = ix - 1; i <= ix + 1; i++)
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{
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if (i < 0 || i >= NQUADS)
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continue;
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for (j = iy - 1; j <= iy + 1; j++)
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{
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if (j < 0 || j >= NQUADS)
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continue;
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q = &Quad[i][j];
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/* check for this quad ok (not full & no snova) */
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if (q->klings >= MAXKLQUAD || q->stars < 0)
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continue;
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break;
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}
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if (j <= iy + 1)
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break;
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}
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if (j > iy + 1)
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/* cannot create another yet */
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break;
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ix = i;
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iy = j;
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}
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/* deliver the child */
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q->klings++;
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Now.klings++;
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if (ix == Ship.quadx && iy == Ship.quady)
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{
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/* we must position Klingon */
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sector(&ix, &iy);
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Sect[ix][iy] = KLINGON;
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k = &Etc.klingon[Etc.nkling++];
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k->x = ix;
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k->y = iy;
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k->power = Param.klingpwr;
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k->srndreq = 0;
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compkldist(Etc.klingon[0].dist == Etc.klingon[0].avgdist ? 0 : 1);
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}
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/* recompute time left */
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Now.time = Now.resource / Now.klings;
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break;
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case E_SNAP: /* take a snapshot of the galaxy */
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xresched(e, E_SNAP, 1);
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i = (int) Etc.snapshot;
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i = bmove(Quad, i, sizeof (Quad));
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i = bmove(Event, i, sizeof (Event));
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i = bmove(&Now, i, sizeof (Now));
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Game.snap = 1;
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break;
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case E_ATTACK: /* Klingons attack during rest period */
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if (!Move.resting)
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{
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unschedule(e);
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break;
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}
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attack(1);
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reschedule(e, 0.5);
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break;
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case E_FIXDV:
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i = e->systemname;
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unschedule(e);
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/* de-damage the device */
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printf("%s reports repair work on the %s finished.\n",
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Device[i].person, Device[i].name);
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/* handle special processing upon fix */
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switch (i)
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{
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case LIFESUP:
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Ship.reserves = Param.reserves;
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break;
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case SINS:
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if (Ship.cond == DOCKED)
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break;
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printf("Spock has tried to recalibrate your Space Internal Navigation System,\n");
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printf(" but he has no standard base to calibrate to. Suggest you get\n");
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printf(" to a starbase immediately so that you can properly recalibrate.\n");
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Ship.sinsbad = 1;
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break;
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case SSRADIO:
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restcancel = dumpssradio();
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break;
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}
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break;
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default:
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break;
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}
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if (restcancel && Move.resting && getynpar("Spock: Shall we cancel our rest period"))
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Move.time = xdate - idate;
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}
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/* unschedule an attack during a rest period */
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if (e = Now.eventptr[E_ATTACK])
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unschedule(e);
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if (!warp)
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{
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/* eat up energy if cloaked */
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if (Ship.cloaked)
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Ship.energy -= Param.cloakenergy * Move.time;
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/* regenerate resources */
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rtime = 1.0 - exp(-Param.regenfac * Move.time);
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Ship.shield += (Param.shield - Ship.shield) * rtime;
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Ship.energy += (Param.energy - Ship.energy) * rtime;
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/* decrement life support reserves */
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if (damaged(LIFESUP) && Ship.cond != DOCKED)
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Ship.reserves -= Move.time;
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}
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return (0);
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}
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