1 /* $NetBSD: shield.c,v 1.7 1999/07/21 13:19:11 hubertf 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[] = "@(#)shield.c 8.1 (Berkeley) 5/31/93"; 40 #else 41 __RCSID("$NetBSD: shield.c,v 1.7 1999/07/21 13:19:11 hubertf Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <stdio.h> 46 #include "trek.h" 47 #include "getpar.h" 48 49 /* 50 ** SHIELD AND CLOAKING DEVICE CONTROL 51 ** 52 ** 'f' is one for auto shield up (in case of Condition RED), 53 ** zero for shield control, and negative one for cloaking 54 ** device control. 55 ** 56 ** Called with an 'up' or 'down' on the same line, it puts 57 ** the shields/cloak into the specified mode. Otherwise it 58 ** reports to the user the current mode, and asks if she wishes 59 ** to change. 60 ** 61 ** This is not a free move. Hits that occur as a result of 62 ** this move appear as though the shields are half up/down, 63 ** so you get partial hits. 64 */ 65 66 const struct cvntab Udtab[] = 67 { 68 { "u", "p", (cmdfun)1, 0 }, 69 { "d", "own", (cmdfun)0, 0 }, 70 { NULL, NULL, NULL, 0 } 71 }; 72 73 void 74 shield(f) 75 int f; 76 { 77 int i; 78 const struct cvntab *r; 79 char s[100]; 80 const char *device, *dev2, *dev3; 81 int ind; 82 char *stat; 83 84 if (f > 0 && (Ship.shldup || damaged(SRSCAN))) 85 return; 86 if (f < 0) 87 { 88 /* cloaking device */ 89 if (Ship.ship == QUEENE) { 90 printf("Ye Faire Queene does not have the cloaking device.\n"); 91 return; 92 } 93 device = "Cloaking device"; 94 dev2 = "is"; 95 ind = CLOAK; 96 dev3 = "it"; 97 stat = &Ship.cloaked; 98 } 99 else 100 { 101 /* shields */ 102 device = "Shields"; 103 dev2 = "are"; 104 dev3 = "them"; 105 ind = SHIELD; 106 stat = &Ship.shldup; 107 } 108 if (damaged(ind)) 109 { 110 if (f <= 0) 111 out(ind); 112 return; 113 } 114 if (Ship.cond == DOCKED) 115 { 116 printf("%s %s down while docked\n", device, dev2); 117 return; 118 } 119 if (f <= 0 && !testnl()) 120 { 121 r = getcodpar("Up or down", Udtab); 122 i = (long) r->value; 123 } 124 else 125 { 126 if (*stat) 127 (void)sprintf(s, "%s %s up. Do you want %s down", device, dev2, dev3); 128 else 129 (void)sprintf(s, "%s %s down. Do you want %s up", device, dev2, dev3); 130 if (!getynpar(s)) 131 return; 132 i = !*stat; 133 } 134 if (*stat == i) 135 { 136 printf("%s already ", device); 137 if (i) 138 printf("up\n"); 139 else 140 printf("down\n"); 141 return; 142 } 143 if (i) { 144 if (f >= 0) 145 Ship.energy -= Param.shupengy; 146 else 147 Ship.cloakgood = 0; 148 } 149 Move.free = 0; 150 if (f >= 0) 151 Move.shldchg = 1; 152 *stat = i; 153 return; 154 } 155