1 /* $NetBSD: capture.c,v 1.5 1999/09/08 21:45:32 jsm Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)capture.c 8.1 (Berkeley) 5/31/93"; 40 #else 41 __RCSID("$NetBSD: capture.c,v 1.5 1999/09/08 21:45:32 jsm Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <stdio.h> 46 #include "trek.h" 47 48 /* 49 ** Ask a Klingon To Surrender 50 ** 51 ** (Fat chance) 52 ** 53 ** The Subspace Radio is needed to ask a Klingon if he will kindly 54 ** surrender. A random Klingon from the ones in the quadrant is 55 ** chosen. 56 ** 57 ** The Klingon is requested to surrender. The probability of this 58 ** is a function of that Klingon's remaining power, our power, 59 ** etc. 60 */ 61 62 /*ARGSUSED*/ 63 void 64 capture(v) 65 int v __attribute__((__unused__)); 66 { 67 int i; 68 struct kling *k; 69 double x; 70 71 /* check for not cloaked */ 72 if (Ship.cloaked) 73 { 74 printf("Ship-ship communications out when cloaked\n"); 75 return; 76 } 77 if (damaged(SSRADIO)) { 78 out(SSRADIO); 79 return; 80 } 81 /* find out if there are any at all */ 82 if (Etc.nkling <= 0) 83 { 84 printf("Uhura: Getting no response, sir\n"); 85 return; 86 } 87 88 /* if there is more than one Klingon, find out which one */ 89 k = selectklingon(); 90 Move.free = 0; 91 Move.time = 0.05; 92 93 /* check out that Klingon */ 94 k->srndreq++; 95 x = Param.klingpwr; 96 x *= Ship.energy; 97 x /= k->power * Etc.nkling; 98 x *= Param.srndrprob; 99 i = x; 100 # ifdef xTRACE 101 if (Trace) 102 printf("Prob = %d (%.4f)\n", i, x); 103 # endif 104 if (i > ranf(100)) 105 { 106 /* guess what, he surrendered!!! */ 107 printf("Klingon at %d,%d surrenders\n", k->x, k->y); 108 i = ranf(Param.klingcrew); 109 if ( i > 0 ) 110 printf("%d klingons commit suicide rather than be taken captive\n", Param.klingcrew - i); 111 if (i > Ship.brigfree) 112 i = Ship.brigfree; 113 Ship.brigfree -= i; 114 printf("%d captives taken\n", i); 115 killk(k->x, k->y); 116 return; 117 } 118 119 /* big surprise, he refuses to surrender */ 120 printf("Fat chance, captain\n"); 121 return; 122 } 123 124 125 /* 126 ** SELECT A KLINGON 127 ** 128 ** Cruddy, just takes one at random. Should ask the captain. 129 */ 130 131 struct kling *selectklingon() 132 { 133 int i; 134 135 if (Etc.nkling < 2) 136 i = 0; 137 else 138 i = ranf(Etc.nkling); 139 return (&Etc.klingon[i]); 140 } 141