1 /* $NetBSD: hack.worn.c,v 1.7 2009/08/12 07:28:41 dholland 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 #include "extern.h" 66 67 static struct worn { 68 long w_mask; 69 struct obj **w_obj; 70 } worn[] = { 71 { 72 W_ARM, &uarm 73 }, 74 { 75 W_ARM2, &uarm2 76 }, 77 { 78 W_ARMH, &uarmh 79 }, 80 { 81 W_ARMS, &uarms 82 }, 83 { 84 W_ARMG, &uarmg 85 }, 86 { 87 W_RINGL, &uleft 88 }, 89 { 90 W_RINGR, &uright 91 }, 92 { 93 W_WEP, &uwep 94 }, 95 { 96 W_BALL, &uball 97 }, 98 { 99 W_CHAIN, &uchain 100 }, 101 { 102 0, 0 103 } 104 }; 105 106 void 107 setworn(struct obj *obj, long mask) 108 { 109 struct worn *wp; 110 struct obj *oobj; 111 112 for (wp = worn; wp->w_mask; wp++) 113 if (wp->w_mask & mask) { 114 oobj = *(wp->w_obj); 115 if (oobj && !(oobj->owornmask & wp->w_mask)) 116 impossible("Setworn: mask = %ld.", wp->w_mask); 117 if (oobj) 118 oobj->owornmask &= ~wp->w_mask; 119 if (obj && oobj && wp->w_mask == W_ARM) { 120 if (uarm2) { 121 impossible("Setworn: uarm2 set?"); 122 } else 123 setworn(uarm, W_ARM2); 124 } 125 *(wp->w_obj) = obj; 126 if (obj) 127 obj->owornmask |= wp->w_mask; 128 } 129 if (uarm2 && !uarm) { 130 uarm = uarm2; 131 uarm2 = 0; 132 uarm->owornmask ^= (W_ARM | W_ARM2); 133 } 134 } 135 136 /* called e.g. when obj is destroyed */ 137 void 138 setnotworn(struct obj *obj) 139 { 140 struct worn *wp; 141 142 for (wp = worn; wp->w_mask; wp++) 143 if (obj == *(wp->w_obj)) { 144 *(wp->w_obj) = 0; 145 obj->owornmask &= ~wp->w_mask; 146 } 147 if (uarm2 && !uarm) { 148 uarm = uarm2; 149 uarm2 = 0; 150 uarm->owornmask ^= (W_ARM | W_ARM2); 151 } 152 } 153