1 /* $OpenBSD: hack.worn.c,v 1.5 2009/10/27 23:59:25 deraadt 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 #include "hack.h" 65 66 struct worn { 67 long w_mask; 68 struct obj **w_obj; 69 } worn[] = { 70 { W_ARM, &uarm }, 71 { W_ARM2, &uarm2 }, 72 { W_ARMH, &uarmh }, 73 { W_ARMS, &uarms }, 74 { W_ARMG, &uarmg }, 75 { W_RINGL, &uleft }, 76 { W_RINGR, &uright }, 77 { W_WEP, &uwep }, 78 { W_BALL, &uball }, 79 { W_CHAIN, &uchain }, 80 { 0, 0 } 81 }; 82 83 void 84 setworn(struct obj *obj, long mask) 85 { 86 struct worn *wp; 87 struct obj *oobj; 88 89 for(wp = worn; wp->w_mask; wp++) if(wp->w_mask & mask) { 90 oobj = *(wp->w_obj); 91 if(oobj && !(oobj->owornmask & wp->w_mask)) 92 impossible("Setworn: mask = %ld.", wp->w_mask); 93 if(oobj) oobj->owornmask &= ~wp->w_mask; 94 if(obj && oobj && wp->w_mask == W_ARM){ 95 if(uarm2) { 96 impossible("Setworn: uarm2 set?"); 97 } else 98 setworn(uarm, W_ARM2); 99 } 100 *(wp->w_obj) = obj; 101 if(obj) obj->owornmask |= wp->w_mask; 102 } 103 if(uarm2 && !uarm) { 104 uarm = uarm2; 105 uarm2 = 0; 106 uarm->owornmask ^= (W_ARM | W_ARM2); 107 } 108 } 109 110 /* called e.g. when obj is destroyed */ 111 void 112 setnotworn(struct obj *obj) 113 { 114 struct worn *wp; 115 116 for(wp = worn; wp->w_mask; wp++) 117 if(obj == *(wp->w_obj)) { 118 *(wp->w_obj) = 0; 119 obj->owornmask &= ~wp->w_mask; 120 } 121 if(uarm2 && !uarm) { 122 uarm = uarm2; 123 uarm2 = 0; 124 uarm->owornmask ^= (W_ARM | W_ARM2); 125 } 126 } 127