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/attack.c | 188 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 188 insertions(+) create mode 100644 trek/attack.c (limited to 'trek/attack.c') diff --git a/trek/attack.c b/trek/attack.c new file mode 100644 index 00000000..61c23ed0 --- /dev/null +++ b/trek/attack.c @@ -0,0 +1,188 @@ +/* + * 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[] = "@(#)attack.c 5.4 (Berkeley) 6/1/90"; +#endif /* not lint */ + +# include "trek.h" + +/* +** Klingon Attack Routine +** +** This routine performs the Klingon attack provided that +** (1) Something happened this move (i.e., not free), and +** (2) You are not cloaked. Note that if you issue the +** cloak command, you are not considered cloaked until you +** expend some time. +** +** Klingons are permitted to move both before and after the +** attack. They will tend to move toward you before the +** attack and away from you after the attack. +** +** Under certain conditions you can get a critical hit. This +** sort of hit damages devices. The probability that a given +** device is damaged depends on the device. Well protected +** devices (such as the computer, which is in the core of the +** ship and has considerable redundancy) almost never get +** damaged, whereas devices which are exposed (such as the +** warp engines) or which are particularly delicate (such as +** the transporter) have a much higher probability of being +** damaged. +** +** The actual amount of damage (i.e., how long it takes to fix +** it) depends on the amount of the hit and the "damfac[]" +** entry for the particular device. +** +** Casualties can also occur. +*/ + +attack(resting) +int resting; /* set if attack while resting */ +{ + register int hit, i, l; + int maxhit, tothit, shldabsb; + double chgfac, propor, extradm; + double dustfac, tothe; + int cas; + int hitflag; + + if (Move.free) + return; + if (Etc.nkling <= 0 || Quad[Ship.quadx][Ship.quady].stars < 0) + return; + if (Ship.cloaked && Ship.cloakgood) + return; + /* move before attack */ + klmove(0); + if (Ship.cond == DOCKED) + { + if (!resting) + printf("Starbase shields protect the %s\n", Ship.shipname); + return; + } + /* setup shield effectiveness */ + chgfac = 1.0; + if (Move.shldchg) + chgfac = 0.25 + 0.50 * franf(); + maxhit = tothit = 0; + hitflag = 0; + + /* let each Klingon do his damndest */ + for (i = 0; i < Etc.nkling; i++) + { + /* if he's low on power he won't attack */ + if (Etc.klingon[i].power < 20) + continue; + if (!hitflag) + { + printf("\nStardate %.2f: Klingon attack:\n", + Now.date); + hitflag++; + } + /* complete the hit */ + dustfac = 0.90 + 0.01 * franf(); + tothe = Etc.klingon[i].avgdist; + hit = Etc.klingon[i].power * pow(dustfac, tothe) * Param.hitfac; + /* deplete his energy */ + dustfac = Etc.klingon[i].power; + Etc.klingon[i].power = dustfac * Param.phasfac * (1.0 + (franf() - 0.5) * 0.2); + /* see how much of hit shields will absorb */ + shldabsb = 0; + if (Ship.shldup || Move.shldchg) + { + propor = Ship.shield; + propor /= Param.shield; + shldabsb = propor * chgfac * hit; + if (shldabsb > Ship.shield) + shldabsb = Ship.shield; + Ship.shield -= shldabsb; + } + /* actually do the hit */ + printf("HIT: %d units", hit); + if (!damaged(SRSCAN)) + printf(" from %d,%d", Etc.klingon[i].x, Etc.klingon[i].y); + cas = (shldabsb * 100) / hit; + hit -= shldabsb; + if (shldabsb > 0) + printf(", shields absorb %d%%, effective hit %d\n", + cas, hit); + else + printf("\n"); + tothit += hit; + if (hit > maxhit) + maxhit = hit; + Ship.energy -= hit; + /* see if damages occurred */ + if (hit >= (15 - Game.skill) * (25 - ranf(12))) + { + printf("CRITICAL HIT!!!\n"); + /* select a device from probability vector */ + cas = ranf(1000); + for (l = 0; cas >= 0; l++) + cas -= Param.damprob[l]; + l -= 1; + /* compute amount of damage */ + extradm = (hit * Param.damfac[l]) / (75 + ranf(25)) + 0.5; + /* damage the device */ + damage(l, extradm); + if (damaged(SHIELD)) + { + if (Ship.shldup) + printf("Sulu: Shields knocked down, captain.\n"); + Ship.shldup = 0; + Move.shldchg = 0; + } + } + if (Ship.energy <= 0) + lose(L_DSTRYD); + } + + /* see what our casualities are like */ + if (maxhit >= 200 || tothit >= 500) + { + cas = tothit * 0.015 * franf(); + if (cas >= 2) + { + printf("McCoy: we suffered %d casualties in that attack.\n", + cas); + Game.deaths += cas; + Ship.crew -= cas; + } + } + + /* allow Klingons to move after attacking */ + klmove(1); + + return; +} -- cgit v1.2.3-56-ge451