1 /* 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)shield.c 8.1 (Berkeley) 05/31/93"; 10 #endif /* not lint */ 11 12 # include "trek.h" 13 # include "getpar.h" 14 15 /* 16 ** SHIELD AND CLOAKING DEVICE CONTROL 17 ** 18 ** 'f' is one for auto shield up (in case of Condition RED), 19 ** zero for shield control, and negative one for cloaking 20 ** device control. 21 ** 22 ** Called with an 'up' or 'down' on the same line, it puts 23 ** the shields/cloak into the specified mode. Otherwise it 24 ** reports to the user the current mode, and asks if she wishes 25 ** to change. 26 ** 27 ** This is not a free move. Hits that occur as a result of 28 ** this move appear as though the shields are half up/down, 29 ** so you get partial hits. 30 */ 31 32 struct cvntab Udtab[] = 33 { 34 "u", "p", (int (*)())1, 0, 35 "d", "own", 0, 0, 36 0 37 }; 38 39 shield(f) 40 int f; 41 { 42 register int i; 43 char c; 44 struct cvntab *r; 45 char s[100]; 46 char *device, *dev2, *dev3; 47 int ind; 48 char *stat; 49 50 if (f > 0 && (Ship.shldup || damaged(SRSCAN))) 51 return; 52 if (f < 0) 53 { 54 /* cloaking device */ 55 if (Ship.ship == QUEENE) 56 return (printf("Ye Faire Queene does not have the cloaking device.\n")); 57 device = "Cloaking device"; 58 dev2 = "is"; 59 ind = CLOAK; 60 dev3 = "it"; 61 stat = &Ship.cloaked; 62 } 63 else 64 { 65 /* shields */ 66 device = "Shields"; 67 dev2 = "are"; 68 dev3 = "them"; 69 ind = SHIELD; 70 stat = &Ship.shldup; 71 } 72 if (damaged(ind)) 73 { 74 if (f <= 0) 75 out(ind); 76 return; 77 } 78 if (Ship.cond == DOCKED) 79 { 80 printf("%s %s down while docked\n", device, dev2); 81 return; 82 } 83 if (f <= 0 && !testnl()) 84 { 85 r = getcodpar("Up or down", Udtab); 86 i = (int) r->value; 87 } 88 else 89 { 90 if (*stat) 91 (void)sprintf(s, "%s %s up. Do you want %s down", device, dev2, dev3); 92 else 93 (void)sprintf(s, "%s %s down. Do you want %s up", device, dev2, dev3); 94 if (!getynpar(s)) 95 return; 96 i = !*stat; 97 } 98 if (*stat == i) 99 { 100 printf("%s already ", device); 101 if (i) 102 printf("up\n"); 103 else 104 printf("down\n"); 105 return; 106 } 107 if (i) 108 if (f >= 0) 109 Ship.energy -= Param.shupengy; 110 else 111 Ship.cloakgood = 0; 112 Move.free = 0; 113 if (f >= 0) 114 Move.shldchg = 1; 115 *stat = i; 116 return; 117 } 118