freebsd-src/games/trek/snova.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

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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[] = "@(#)snova.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
# include "trek.h"
/*
** CAUSE SUPERNOVA TO OCCUR
**
** A supernova occurs. If 'ix' < 0, a random quadrant is chosen;
** otherwise, the current quadrant is taken, and (ix, iy) give
** the sector quadrants of the star which is blowing up.
**
** If the supernova turns out to be in the quadrant you are in,
** you go into "emergency override mode", which tries to get you
** out of the quadrant as fast as possible. However, if you
** don't have enough fuel, or if you by chance run into something,
** or some such thing, you blow up anyway. Oh yeh, if you are
** within two sectors of the star, there is nothing that can
** be done for you.
**
** When a star has gone supernova, the quadrant becomes uninhab-
** itable for the rest of eternity, i.e., the game. If you ever
** try stopping in such a quadrant, you will go into emergency
** override mode.
*/
snova(x, y)
int x, y;
{
int qx, qy;
register int ix, iy;
int f;
int dx, dy;
int n;
register struct quad *q;
f = 0;
ix = x;
if (ix < 0)
{
/* choose a quadrant */
while (1)
{
qx = ranf(NQUADS);
qy = ranf(NQUADS);
q = &Quad[qx][qy];
if (q->stars > 0)
break;
}
if (Ship.quadx == qx && Ship.quady == qy)
{
/* select a particular star */
n = ranf(q->stars);
for (ix = 0; ix < NSECTS; ix++)
{
for (iy = 0; iy < NSECTS; iy++)
if (Sect[ix][iy] == STAR || Sect[ix][iy] == INHABIT)
if ((n -= 1) <= 0)
break;
if (n <= 0)
break;
}
f = 1;
}
}
else
{
/* current quadrant */
iy = y;
qx = Ship.quadx;
qy = Ship.quady;
q = &Quad[qx][qy];
f = 1;
}
if (f)
{
/* supernova is in same quadrant as Enterprise */
printf("\nRED ALERT: supernova occuring at %d,%d\n", ix, iy);
dx = ix - Ship.sectx;
dy = iy - Ship.secty;
if (dx * dx + dy * dy <= 2)
{
printf("*** Emergency override attem");
sleep(1);
printf("\n");
lose(L_SNOVA);
}
q->scanned = 1000;
}
else
{
if (!damaged(SSRADIO))
{
q->scanned = 1000;
printf("\nUhura: Captain, Starfleet Command reports a supernova\n");
printf(" in quadrant %d,%d. Caution is advised\n", qx, qy);
}
}
/* clear out the supernova'ed quadrant */
dx = q->klings;
dy = q->stars;
Now.klings -= dx;
if (x >= 0)
{
/* Enterprise caused supernova */
Game.kills += dy;
if (q->bases)
killb(qx, qy, -1);
Game.killk += dx;
}
else
if (q->bases)
killb(qx, qy, 0);
killd(qx, qy, (x >= 0));
q->stars = -1;
q->klings = 0;
if (Now.klings <= 0)
{
printf("Lucky devil, that supernova destroyed the last klingon\n");
win();
}
return;
}