1 /* $OpenBSD: hack.worn.c,v 1.4 2003/05/19 06:30:56 pjanzen Exp $ */ 2 3 /* 4 * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica, 5 * Amsterdam 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are 10 * met: 11 * 12 * - Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 15 * - Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * - Neither the name of the Stichting Centrum voor Wiskunde en 20 * Informatica, nor the names of its contributors may be used to endorse or 21 * promote products derived from this software without specific prior 22 * written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 25 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 27 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 28 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 /* 38 * Copyright (c) 1982 Jay Fenlason <hack@gnu.org> 39 * All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. The name of the author may not be used to endorse or promote products 50 * derived from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 53 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 54 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 55 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 56 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 57 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 58 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 59 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 60 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 61 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64 #ifndef lint 65 static const char rcsid[] = "$OpenBSD: hack.worn.c,v 1.4 2003/05/19 06:30:56 pjanzen Exp $"; 66 #endif /* not lint */ 67 68 #include "hack.h" 69 70 struct worn { 71 long w_mask; 72 struct obj **w_obj; 73 } worn[] = { 74 { W_ARM, &uarm }, 75 { W_ARM2, &uarm2 }, 76 { W_ARMH, &uarmh }, 77 { W_ARMS, &uarms }, 78 { W_ARMG, &uarmg }, 79 { W_RINGL, &uleft }, 80 { W_RINGR, &uright }, 81 { W_WEP, &uwep }, 82 { W_BALL, &uball }, 83 { W_CHAIN, &uchain }, 84 { 0, 0 } 85 }; 86 87 void 88 setworn(struct obj *obj, long mask) 89 { 90 struct worn *wp; 91 struct obj *oobj; 92 93 for(wp = worn; wp->w_mask; wp++) if(wp->w_mask & mask) { 94 oobj = *(wp->w_obj); 95 if(oobj && !(oobj->owornmask & wp->w_mask)) 96 impossible("Setworn: mask = %ld.", wp->w_mask); 97 if(oobj) oobj->owornmask &= ~wp->w_mask; 98 if(obj && oobj && wp->w_mask == W_ARM){ 99 if(uarm2) { 100 impossible("Setworn: uarm2 set?"); 101 } else 102 setworn(uarm, W_ARM2); 103 } 104 *(wp->w_obj) = obj; 105 if(obj) obj->owornmask |= wp->w_mask; 106 } 107 if(uarm2 && !uarm) { 108 uarm = uarm2; 109 uarm2 = 0; 110 uarm->owornmask ^= (W_ARM | W_ARM2); 111 } 112 } 113 114 /* called e.g. when obj is destroyed */ 115 void 116 setnotworn(struct obj *obj) 117 { 118 struct worn *wp; 119 120 for(wp = worn; wp->w_mask; wp++) 121 if(obj == *(wp->w_obj)) { 122 *(wp->w_obj) = 0; 123 obj->owornmask &= ~wp->w_mask; 124 } 125 if(uarm2 && !uarm) { 126 uarm = uarm2; 127 uarm2 = 0; 128 uarm->owornmask ^= (W_ARM | W_ARM2); 129 } 130 } 131