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 * @(#)shield.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/trek/shield.c,v 1.5 1999/11/30 03:49:54 billf Exp $ 35 * $DragonFly: src/games/trek/shield.c,v 1.2 2003/06/17 04:25:25 dillon Exp $ 36 */ 37 38 # include "trek.h" 39 # include "getpar.h" 40 41 /* 42 ** SHIELD AND CLOAKING DEVICE CONTROL 43 ** 44 ** 'f' is one for auto shield up (in case of Condition RED), 45 ** zero for shield control, and negative one for cloaking 46 ** device control. 47 ** 48 ** Called with an 'up' or 'down' on the same line, it puts 49 ** the shields/cloak into the specified mode. Otherwise it 50 ** reports to the user the current mode, and asks if she wishes 51 ** to change. 52 ** 53 ** This is not a free move. Hits that occur as a result of 54 ** this move appear as though the shields are half up/down, 55 ** so you get partial hits. 56 */ 57 58 struct cvntab Udtab[] = 59 { 60 "u", "p", (int (*)())1, 0, 61 "d", "own", 0, 0, 62 0 63 }; 64 65 shield(f) 66 int f; 67 { 68 int i; 69 char c; 70 struct cvntab *r; 71 char s[100]; 72 char *device, *dev2, *dev3; 73 int ind; 74 char *stat; 75 76 if (f > 0 && (Ship.shldup || damaged(SRSCAN))) 77 return; 78 if (f < 0) 79 { 80 /* cloaking device */ 81 if (Ship.ship == QUEENE) 82 return (printf("Ye Faire Queene does not have the cloaking device.\n")); 83 device = "Cloaking device"; 84 dev2 = "is"; 85 ind = CLOAK; 86 dev3 = "it"; 87 stat = &Ship.cloaked; 88 } 89 else 90 { 91 /* shields */ 92 device = "Shields"; 93 dev2 = "are"; 94 dev3 = "them"; 95 ind = SHIELD; 96 stat = &Ship.shldup; 97 } 98 if (damaged(ind)) 99 { 100 if (f <= 0) 101 out(ind); 102 return; 103 } 104 if (Ship.cond == DOCKED) 105 { 106 printf("%s %s down while docked\n", device, dev2); 107 return; 108 } 109 if (f <= 0 && !testnl()) 110 { 111 r = getcodpar("Up or down", Udtab); 112 i = (long) r->value; 113 } 114 else 115 { 116 if (*stat) 117 (void)sprintf(s, "%s %s up. Do you want %s down", device, dev2, dev3); 118 else 119 (void)sprintf(s, "%s %s down. Do you want %s up", device, dev2, dev3); 120 if (!getynpar(s)) 121 return; 122 i = !*stat; 123 } 124 if (*stat == i) 125 { 126 printf("%s already ", device); 127 if (i) 128 printf("up\n"); 129 else 130 printf("down\n"); 131 return; 132 } 133 if (i) 134 if (f >= 0) 135 Ship.energy -= Param.shupengy; 136 else 137 Ship.cloakgood = 0; 138 Move.free = 0; 139 if (f >= 0) 140 Move.shldchg = 1; 141 *stat = i; 142 return; 143 } 144