162 lines
4.8 KiB
C
162 lines
4.8 KiB
C
/*
|
|
* 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
|
|
#if 0
|
|
static char sccsid[] = "@(#)help.c 8.1 (Berkeley) 5/31/93";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
# include "trek.h"
|
|
|
|
/*
|
|
** call starbase for help
|
|
**
|
|
** First, the closest starbase is selected. If there is a
|
|
** a starbase in your own quadrant, you are in good shape.
|
|
** This distance takes quadrant distances into account only.
|
|
**
|
|
** A magic number is computed based on the distance which acts
|
|
** as the probability that you will be rematerialized. You
|
|
** get three tries.
|
|
**
|
|
** When it is determined that you should be able to be remater-
|
|
** ialized (i.e., when the probability thing mentioned above
|
|
** comes up positive), you are put into that quadrant (anywhere).
|
|
** Then, we try to see if there is a spot adjacent to the star-
|
|
** base. If not, you can't be rematerialized!!! Otherwise,
|
|
** it drops you there. It only tries five times to find a spot
|
|
** to drop you. After that, it's your problem.
|
|
*/
|
|
|
|
char *Cntvect[3] =
|
|
{"first", "second", "third"};
|
|
|
|
help()
|
|
{
|
|
int i;
|
|
double dist, x;
|
|
int dx, dy;
|
|
int j, l;
|
|
|
|
/* check to see if calling for help is reasonable ... */
|
|
if (Ship.cond == DOCKED)
|
|
return (printf("Uhura: But Captain, we're already docked\n"));
|
|
|
|
/* or possible */
|
|
if (damaged(SSRADIO))
|
|
return (out(SSRADIO));
|
|
if (Now.bases <= 0)
|
|
return (printf("Uhura: I'm not getting any response from starbase\n"));
|
|
|
|
/* tut tut, there goes the score */
|
|
Game.helps += 1;
|
|
|
|
/* find the closest base */
|
|
dist = 1e50;
|
|
if (Quad[Ship.quadx][Ship.quady].bases <= 0)
|
|
{
|
|
/* there isn't one in this quadrant */
|
|
for (i = 0; i < Now.bases; i++)
|
|
{
|
|
/* compute distance */
|
|
dx = Now.base[i].x - Ship.quadx;
|
|
dy = Now.base[i].y - Ship.quady;
|
|
x = dx * dx + dy * dy;
|
|
x = sqrt(x);
|
|
|
|
/* see if better than what we already have */
|
|
if (x < dist)
|
|
{
|
|
dist = x;
|
|
l = i;
|
|
}
|
|
}
|
|
|
|
/* go to that quadrant */
|
|
Ship.quadx = Now.base[l].x;
|
|
Ship.quady = Now.base[l].y;
|
|
initquad(1);
|
|
}
|
|
else
|
|
{
|
|
dist = 0.0;
|
|
}
|
|
|
|
/* dematerialize the Enterprise */
|
|
Sect[Ship.sectx][Ship.secty] = EMPTY;
|
|
printf("Starbase in %d,%d responds\n", Ship.quadx, Ship.quady);
|
|
|
|
/* this next thing acts as a probability that it will work */
|
|
x = pow(1.0 - pow(0.94, dist), 0.3333333);
|
|
|
|
/* attempt to rematerialize */
|
|
for (i = 0; i < 3; i++)
|
|
{
|
|
sleep(2);
|
|
printf("%s attempt to rematerialize ", Cntvect[i]);
|
|
if (franf() > x)
|
|
{
|
|
/* ok, that's good. let's see if we can set her down */
|
|
for (j = 0; j < 5; j++)
|
|
{
|
|
dx = Etc.starbase.x + ranf(3) - 1;
|
|
if (dx < 0 || dx >= NSECTS)
|
|
continue;
|
|
dy = Etc.starbase.y + ranf(3) - 1;
|
|
if (dy < 0 || dy >= NSECTS || Sect[dx][dy] != EMPTY)
|
|
continue;
|
|
break;
|
|
}
|
|
if (j < 5)
|
|
{
|
|
/* found an empty spot */
|
|
printf("succeeds\n");
|
|
Ship.sectx = dx;
|
|
Ship.secty = dy;
|
|
Sect[dx][dy] = Ship.ship;
|
|
dock();
|
|
compkldist(0);
|
|
return;
|
|
}
|
|
/* the starbase must have been surrounded */
|
|
}
|
|
printf("fails\n");
|
|
}
|
|
|
|
/* one, two, three strikes, you're out */
|
|
lose(L_NOHELP);
|
|
}
|