1 /* 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)capture.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/trek/capture.c,v 1.4 1999/11/30 03:49:43 billf Exp $ 35 * $DragonFly: src/games/trek/capture.c,v 1.2 2003/06/17 04:25:25 dillon Exp $ 36 */ 37 38 # include "trek.h" 39 40 /* 41 ** Ask a Klingon To Surrender 42 ** 43 ** (Fat chance) 44 ** 45 ** The Subspace Radio is needed to ask a Klingon if he will kindly 46 ** surrender. A random Klingon from the ones in the quadrant is 47 ** chosen. 48 ** 49 ** The Klingon is requested to surrender. The probability of this 50 ** is a function of that Klingon's remaining power, our power, 51 ** etc. 52 */ 53 54 capture() 55 { 56 int i; 57 struct kling *k; 58 double x; 59 extern struct kling *selectklingon(); 60 61 /* check for not cloaked */ 62 if (Ship.cloaked) 63 { 64 printf("Ship-ship communications out when cloaked\n"); 65 return; 66 } 67 if (damaged(SSRADIO)) 68 return (out(SSRADIO)); 69 /* find out if there are any at all */ 70 if (Etc.nkling <= 0) 71 { 72 printf("Uhura: Getting no response, sir\n"); 73 return; 74 } 75 76 /* if there is more than one Klingon, find out which one */ 77 k = selectklingon(); 78 Move.free = 0; 79 Move.time = 0.05; 80 81 /* check out that Klingon */ 82 k->srndreq++; 83 x = Param.klingpwr; 84 x *= Ship.energy; 85 x /= k->power * Etc.nkling; 86 x *= Param.srndrprob; 87 i = x; 88 # ifdef xTRACE 89 if (Trace) 90 printf("Prob = %d (%.4f)\n", i, x); 91 # endif 92 if (i > ranf(100)) 93 { 94 /* guess what, he surrendered!!! */ 95 printf("Klingon at %d,%d surrenders\n", k->x, k->y); 96 i = ranf(Param.klingcrew); 97 if ( i > 0 ) 98 printf("%d klingons commit suicide rather than be taken captive\n", Param.klingcrew - i); 99 if (i > Ship.brigfree) 100 i = Ship.brigfree; 101 Ship.brigfree -= i; 102 printf("%d captives taken\n", i); 103 killk(k->x, k->y); 104 return; 105 } 106 107 /* big surprise, he refuses to surrender */ 108 printf("Fat chance, captain\n"); 109 return; 110 } 111 112 113 /* 114 ** SELECT A KLINGON 115 ** 116 ** Cruddy, just takes one at random. Should ask the captain. 117 */ 118 119 struct kling *selectklingon() 120 { 121 int i; 122 123 if (Etc.nkling < 2) 124 i = 0; 125 else 126 i = ranf(Etc.nkling); 127 return (&Etc.klingon[i]); 128 } 129