1 /* $NetBSD: shield.c,v 1.4 1995/04/24 12:26:09 cgd 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 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)shield.c 8.1 (Berkeley) 5/31/93"; 39 #else 40 static char rcsid[] = "$NetBSD: shield.c,v 1.4 1995/04/24 12:26:09 cgd Exp $"; 41 #endif 42 #endif /* not lint */ 43 44 # include "trek.h" 45 # include "getpar.h" 46 47 /* 48 ** SHIELD AND CLOAKING DEVICE CONTROL 49 ** 50 ** 'f' is one for auto shield up (in case of Condition RED), 51 ** zero for shield control, and negative one for cloaking 52 ** device control. 53 ** 54 ** Called with an 'up' or 'down' on the same line, it puts 55 ** the shields/cloak into the specified mode. Otherwise it 56 ** reports to the user the current mode, and asks if she wishes 57 ** to change. 58 ** 59 ** This is not a free move. Hits that occur as a result of 60 ** this move appear as though the shields are half up/down, 61 ** so you get partial hits. 62 */ 63 64 struct cvntab Udtab[] = 65 { 66 "u", "p", (int (*)())1, 0, 67 "d", "own", 0, 0, 68 0 69 }; 70 71 shield(f) 72 int f; 73 { 74 register int i; 75 char c; 76 struct cvntab *r; 77 char s[100]; 78 char *device, *dev2, *dev3; 79 int ind; 80 char *stat; 81 82 if (f > 0 && (Ship.shldup || damaged(SRSCAN))) 83 return; 84 if (f < 0) 85 { 86 /* cloaking device */ 87 if (Ship.ship == QUEENE) 88 return (printf("Ye Faire Queene does not have the cloaking device.\n")); 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 Move.free = 0; 145 if (f >= 0) 146 Move.shldchg = 1; 147 *stat = i; 148 return; 149 } 150