2 * Copyright (c) 1980, 1993
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36 static char sccsid[] = "@(#)attack.c 8.1 (Berkeley) 5/31/93";
38 static const char rcsid[] =
39 "$FreeBSD: src/games/trek/attack.c,v 1.4 1999/11/30 03:49:43 billf Exp $";
45 ** Klingon Attack Routine
47 ** This routine performs the Klingon attack provided that
48 ** (1) Something happened this move (i.e., not free), and
49 ** (2) You are not cloaked. Note that if you issue the
50 ** cloak command, you are not considered cloaked until you
53 ** Klingons are permitted to move both before and after the
54 ** attack. They will tend to move toward you before the
55 ** attack and away from you after the attack.
57 ** Under certain conditions you can get a critical hit. This
58 ** sort of hit damages devices. The probability that a given
59 ** device is damaged depends on the device. Well protected
60 ** devices (such as the computer, which is in the core of the
61 ** ship and has considerable redundancy) almost never get
62 ** damaged, whereas devices which are exposed (such as the
63 ** warp engines) or which are particularly delicate (such as
64 ** the transporter) have a much higher probability of being
67 ** The actual amount of damage (i.e., how long it takes to fix
68 ** it) depends on the amount of the hit and the "damfac[]"
69 ** entry for the particular device.
71 ** Casualties can also occur.
75 int resting; /* set if attack while resting */
78 int maxhit, tothit, shldabsb;
79 double chgfac, propor, extradm;
80 double dustfac, tothe;
86 if (Etc.nkling <= 0 || Quad[Ship.quadx][Ship.quady].stars < 0)
88 if (Ship.cloaked && Ship.cloakgood)
90 /* move before attack */
92 if (Ship.cond == DOCKED)
95 printf("Starbase shields protect the %s\n", Ship.shipname);
98 /* setup shield effectiveness */
101 chgfac = 0.25 + 0.50 * franf();
105 /* let each Klingon do his damndest */
106 for (i = 0; i < Etc.nkling; i++)
108 /* if he's low on power he won't attack */
109 if (Etc.klingon[i].power < 20)
113 printf("\nStardate %.2f: Klingon attack:\n",
117 /* complete the hit */
118 dustfac = 0.90 + 0.01 * franf();
119 tothe = Etc.klingon[i].avgdist;
120 hit = Etc.klingon[i].power * pow(dustfac, tothe) * Param.hitfac;
121 /* deplete his energy */
122 dustfac = Etc.klingon[i].power;
123 Etc.klingon[i].power = dustfac * Param.phasfac * (1.0 + (franf() - 0.5) * 0.2);
124 /* see how much of hit shields will absorb */
126 if (Ship.shldup || Move.shldchg)
128 propor = Ship.shield;
129 propor /= Param.shield;
130 shldabsb = propor * chgfac * hit;
131 if (shldabsb > Ship.shield)
132 shldabsb = Ship.shield;
133 Ship.shield -= shldabsb;
135 /* actually do the hit */
136 printf("
\aHIT: %d units", hit);
137 if (!damaged(SRSCAN))
138 printf(" from %d,%d", Etc.klingon[i].x, Etc.klingon[i].y);
139 cas = (shldabsb * 100) / hit;
142 printf(", shields absorb %d%%, effective hit %d\n",
150 /* see if damages occurred */
151 if (hit >= (15 - Game.skill) * (25 - ranf(12)))
153 printf("
\aCRITICAL HIT!!!
\a\n");
154 /* select a device from probability vector */
156 for (l = 0; cas >= 0; l++)
157 cas -= Param.damprob[l];
159 /* compute amount of damage */
160 extradm = (hit * Param.damfac[l]) / (75 + ranf(25)) + 0.5;
161 /* damage the device */
166 printf("Sulu: Shields knocked down, captain.\n");
171 if (Ship.energy <= 0)
175 /* see what our casualities are like */
176 if (maxhit >= 200 || tothit >= 500)
178 cas = tothit * 0.015 * franf();
181 printf("McCoy: we suffered %d casualties in that attack.\n",
188 /* allow Klingons to move after attacking */