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/warp.c | 182 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 trek/warp.c (limited to 'trek/warp.c') diff --git a/trek/warp.c b/trek/warp.c new file mode 100644 index 00000000..2fc4852a --- /dev/null +++ b/trek/warp.c @@ -0,0 +1,182 @@ +/* + * 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[] = "@(#)warp.c 5.4 (Berkeley) 6/1/90"; +#endif /* not lint */ + +# include "trek.h" + +/* +** MOVE UNDER WARP POWER +** +** This is both the "move" and the "ram" commands, differing +** only in the flag 'fl'. It is also used for automatic +** emergency override mode, when 'fl' is < 0 and 'c' and 'd' +** are the course and distance to be moved. If 'fl' >= 0, +** the course and distance are asked of the captain. +** +** The guts of this routine are in the routine move(), which +** is shared with impulse(). Also, the working part of this +** routine is very small; the rest is to handle the slight chance +** that you may be moving at some riduculous speed. In that +** case, there is code to handle time warps, etc. +*/ + +warp(fl, c, d) +int fl, c; +double d; +{ + int course; + double power; + double dist; + double time; + double speed; + double frac; + register int percent; + register int i; + extern double move(); + + if (Ship.cond == DOCKED) + return (printf("%s is docked\n", Ship.shipname)); + if (damaged(WARP)) + { + return (out(WARP)); + } + if (fl < 0) + { + course = c; + dist = d; + } + else + if (getcodi(&course, &dist)) + return; + + /* check to see that we are not using an absurd amount of power */ + power = (dist + 0.05) * Ship.warp3; + percent = 100 * power / Ship.energy + 0.5; + if (percent >= 85) + { + printf("Scotty: That would consume %d%% of our remaining energy.\n", + percent); + if (!getynpar("Are you sure that is wise")) + return; + } + + /* compute the speed we will move at, and the time it will take */ + speed = Ship.warp2 / Param.warptime; + time = dist / speed; + + /* check to see that that value is not ridiculous */ + percent = 100 * time / Now.time + 0.5; + if (percent >= 85) + { + printf("Spock: That would take %d%% of our remaining time.\n", + percent); + if (!getynpar("Are you sure that is wise")) + return; + } + + /* compute how far we will go if we get damages */ + if (Ship.warp > 6.0 && ranf(100) < 20 + 15 * (Ship.warp - 6.0)) + { + frac = franf(); + dist *= frac; + time *= frac; + damage(WARP, (frac + 1.0) * Ship.warp * (franf() + 0.25) * 0.20); + } + + /* do the move */ + Move.time = move(fl, course, time, speed); + + /* see how far we actually went, and decrement energy appropriately */ + dist = Move.time * speed; + Ship.energy -= dist * Ship.warp3 * (Ship.shldup + 1); + + /* test for bizarre events */ + if (Ship.warp <= 9.0) + return; + printf("\n\n ___ Speed exceeding warp nine ___\n\n"); + sleep(2); + printf("Ship's safety systems malfunction\n"); + sleep(2); + printf("Crew experiencing extreme sensory distortion\n"); + sleep(4); + if (ranf(100) >= 100 * dist) + { + return (printf("Equilibrium restored -- all systems normal\n")); + } + + /* select a bizzare thing to happen to us */ + percent = ranf(100); + if (percent < 70) + { + /* time warp */ + if (percent < 35 || !Game.snap) + { + /* positive time warp */ + time = (Ship.warp - 8.0) * dist * (franf() + 1.0); + Now.date += time; + printf("Positive time portal entered -- it is now Stardate %.2f\n", + Now.date); + for (i = 0; i < MAXEVENTS; i++) + { + percent = Event[i].evcode; + if (percent == E_FIXDV || percent == E_LRTB) + Event[i].date += time; + } + return; + } + + /* s/he got lucky: a negative time portal */ + time = Now.date; + i = (int) Etc.snapshot; + bmove(i, Quad, sizeof Quad); + bmove(i += sizeof Quad, Event, sizeof Event); + bmove(i += sizeof Event, &Now, sizeof Now); + printf("Negative time portal entered -- it is now Stardate %.2f\n", + Now.date); + for (i = 0; i < MAXEVENTS; i++) + if (Event[i].evcode == E_FIXDV) + reschedule(&Event[i], Event[i].date - time); + return; + } + + /* test for just a lot of damage */ + if (percent < 80) + lose(L_TOOFAST); + printf("Equilibrium restored -- extreme damage occured to ship systems\n"); + for (i = 0; i < NDEV; i++) + damage(i, (3.0 * (franf() + franf()) + 1.0) * Param.damfac[i]); + Ship.shldup = 0; +} -- cgit v1.2.3-56-ge451