1 /* $NetBSD: shield.c,v 1.8 2003/08/07 09:37:54 agc 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)shield.c 8.1 (Berkeley) 5/31/93"; 36 #else 37 __RCSID("$NetBSD: shield.c,v 1.8 2003/08/07 09:37:54 agc Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <stdio.h> 42 #include "trek.h" 43 #include "getpar.h" 44 45 /* 46 ** SHIELD AND CLOAKING DEVICE CONTROL 47 ** 48 ** 'f' is one for auto shield up (in case of Condition RED), 49 ** zero for shield control, and negative one for cloaking 50 ** device control. 51 ** 52 ** Called with an 'up' or 'down' on the same line, it puts 53 ** the shields/cloak into the specified mode. Otherwise it 54 ** reports to the user the current mode, and asks if she wishes 55 ** to change. 56 ** 57 ** This is not a free move. Hits that occur as a result of 58 ** this move appear as though the shields are half up/down, 59 ** so you get partial hits. 60 */ 61 62 const struct cvntab Udtab[] = 63 { 64 { "u", "p", (cmdfun)1, 0 }, 65 { "d", "own", (cmdfun)0, 0 }, 66 { NULL, NULL, NULL, 0 } 67 }; 68 69 void 70 shield(f) 71 int f; 72 { 73 int i; 74 const struct cvntab *r; 75 char s[100]; 76 const char *device, *dev2, *dev3; 77 int ind; 78 char *stat; 79 80 if (f > 0 && (Ship.shldup || damaged(SRSCAN))) 81 return; 82 if (f < 0) 83 { 84 /* cloaking device */ 85 if (Ship.ship == QUEENE) { 86 printf("Ye Faire Queene does not have the cloaking device.\n"); 87 return; 88 } 89 device = "Cloaking device"; 90 dev2 = "is"; 91 ind = CLOAK; 92 dev3 = "it"; 93 stat = &Ship.cloaked; 94 } 95 else 96 { 97 /* shields */ 98 device = "Shields"; 99 dev2 = "are"; 100 dev3 = "them"; 101 ind = SHIELD; 102 stat = &Ship.shldup; 103 } 104 if (damaged(ind)) 105 { 106 if (f <= 0) 107 out(ind); 108 return; 109 } 110 if (Ship.cond == DOCKED) 111 { 112 printf("%s %s down while docked\n", device, dev2); 113 return; 114 } 115 if (f <= 0 && !testnl()) 116 { 117 r = getcodpar("Up or down", Udtab); 118 i = (long) r->value; 119 } 120 else 121 { 122 if (*stat) 123 (void)sprintf(s, "%s %s up. Do you want %s down", device, dev2, dev3); 124 else 125 (void)sprintf(s, "%s %s down. Do you want %s up", device, dev2, dev3); 126 if (!getynpar(s)) 127 return; 128 i = !*stat; 129 } 130 if (*stat == i) 131 { 132 printf("%s already ", device); 133 if (i) 134 printf("up\n"); 135 else 136 printf("down\n"); 137 return; 138 } 139 if (i) { 140 if (f >= 0) 141 Ship.energy -= Param.shupengy; 142 else 143 Ship.cloakgood = 0; 144 } 145 Move.free = 0; 146 if (f >= 0) 147 Move.shldchg = 1; 148 *stat = i; 149 return; 150 } 151