From 77e3814f0c0e3dea4d0032e25666f77e6f83bfff Mon Sep 17 00:00:00 2001 From: cgd Date: Sun, 21 Mar 1993 09:45:37 +0000 Subject: initial import of 386bsd-0.1 sources --- trek/help.c | 157 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 trek/help.c (limited to 'trek/help.c') diff --git a/trek/help.c b/trek/help.c new file mode 100644 index 00000000..091210b0 --- /dev/null +++ b/trek/help.c @@ -0,0 +1,157 @@ +/* + * Copyright (c) 1980 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[] = "@(#)help.c 5.4 (Berkeley) 6/1/90"; +#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() +{ + register int i; + double dist, x; + register 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); +} -- cgit v1.2.3-56-ge451