games/hack/hack.mkobj.c

   1 /*      $NetBSD: hack.mkobj.c,v 1.5 2001/03/25 20:44:01 jsm 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 <sys/cdefs.h>
  65 #ifndef lint
  66 __RCSID("$NetBSD: hack.mkobj.c,v 1.5 2001/03/25 20:44:01 jsm Exp $");
  67 #endif                          /* not lint */
  68
  69 #include "hack.h"
  70 #include "extern.h"
  71
  72 char            mkobjstr[] = "))[[!!!!????%%%%/=**))[[!!!!????%%%%/=**(%";
  73
  74 struct obj     *
  75 mkobj_at(let, x, y)
  76         int let, x, y;
  77 {
  78         struct obj     *otmp = mkobj(let);
  79         otmp->ox = x;
  80         otmp->oy = y;
  81         otmp->nobj = fobj;
  82         fobj = otmp;
  83         return (otmp);
  84 }
  85
  86 void
  87 mksobj_at(otyp, x, y)
  88         int otyp, x, y;
  89 {
  90         struct obj     *otmp = mksobj(otyp);
  91         otmp->ox = x;
  92         otmp->oy = y;
  93         otmp->nobj = fobj;
  94         fobj = otmp;
  95 }
  96
  97 struct obj     *
  98 mkobj(let)
  99         int let;
 100 {
 101         if (!let)
 102                 let = mkobjstr[rn2(sizeof(mkobjstr) - 1)];
 103         return (
 104                 mksobj(
 105                        letter(let) ?
 106           CORPSE + ((let > 'Z') ? (let - 'a' + 'Z' - '@' + 1) : (let - '@'))
 107                        : probtype(let)
 108                        )
 109                 );
 110 }
 111
 112
 113 struct obj      zeroobj;
 114
 115 struct obj     *
 116 mksobj(otyp)
 117         int otyp;
 118 {
 119         struct obj     *otmp;
 120         char            let = objects[otyp].oc_olet;
 121
 122         otmp = newobj(0);
 123         *otmp = zeroobj;
 124         otmp->age = moves;
 125         otmp->o_id = flags.ident++;
 126         otmp->quan = 1;
 127         otmp->olet = let;
 128         otmp->otyp = otyp;
 129         otmp->dknown = strchr("/=!?*", let) ? 0 : 1;
 130         switch (let) {
 131         case WEAPON_SYM:
 132                 otmp->quan = (otmp->otyp <= ROCK) ? rn1(6, 6) : 1;
 133                 if (!rn2(11))
 134                         otmp->spe = rnd(3);
 135                 else if (!rn2(10)) {
 136                         otmp->cursed = 1;
 137                         otmp->spe = -rnd(3);
 138                 }
 139                 break;
 140         case FOOD_SYM:
 141                 if (otmp->otyp >= CORPSE)
 142                         break;
 143 #ifdef NOT_YET_IMPLEMENTED
 144                 /* if tins are to be identified, need to adapt doname() etc */
 145                 if (otmp->otyp == TIN)
 146                         otmp->spe = rnd(...);
 147 #endif  /* NOT_YET_IMPLEMENTED */
 148                 /* fall into next case */
 149         case GEM_SYM:
 150                 otmp->quan = rn2(6) ? 1 : 2;
 151         case TOOL_SYM:
 152         case CHAIN_SYM:
 153         case BALL_SYM:
 154         case ROCK_SYM:
 155         case POTION_SYM:
 156         case SCROLL_SYM:
 157         case AMULET_SYM:
 158                 break;
 159         case ARMOR_SYM:
 160                 if (!rn2(8))
 161                         otmp->cursed = 1;
 162                 if (!rn2(10))
 163                         otmp->spe = rnd(3);
 164                 else if (!rn2(9)) {
 165                         otmp->spe = -rnd(3);
 166                         otmp->cursed = 1;
 167                 }
 168                 break;
 169         case WAND_SYM:
 170                 if (otmp->otyp == WAN_WISHING)
 171                         otmp->spe = 3;
 172                 else
 173                         otmp->spe = rn1(5,
 174                                (objects[otmp->otyp].bits & NODIR) ? 11 : 4);
 175                 break;
 176         case RING_SYM:
 177                 if (objects[otmp->otyp].bits & SPEC) {
 178                         if (!rn2(3)) {
 179                                 otmp->cursed = 1;
 180                                 otmp->spe = -rnd(2);
 181                         } else
 182                                 otmp->spe = rnd(2);
 183                 } else if (otmp->otyp == RIN_TELEPORTATION ||
 184                            otmp->otyp == RIN_AGGRAVATE_MONSTER ||
 185                            otmp->otyp == RIN_HUNGER || !rn2(9))
 186                         otmp->cursed = 1;
 187                 break;
 188         default:
 189                 panic("impossible mkobj");
 190         }
 191         otmp->owt = weight(otmp);
 192         return (otmp);
 193 }
 194
 195 int
 196 letter(c)
 197         int c;
 198 {
 199         return (('@' <= c && c <= 'Z') || ('a' <= c && c <= 'z'));
 200 }
 201
 202 int
 203 weight(obj)
 204         struct obj     *obj;
 205 {
 206         int             wt = objects[obj->otyp].oc_weight;
 207         return (wt ? wt * obj->quan : (obj->quan + 1) / 2);
 208 }
 209
 210 void
 211 mkgold(long num, int x, int y)
 212 {
 213         struct gold    *gold;
 214         long            amount = (num ? num : 1 + (rnd(dlevel + 2) * rnd(30)));
 215
 216         if ((gold = g_at(x, y)) != NULL)
 217                 gold->amount += amount;
 218         else {
 219                 gold = newgold();
 220                 gold->ngold = fgold;
 221                 gold->gx = x;
 222                 gold->gy = y;
 223                 gold->amount = amount;
 224                 fgold = gold;
 225                 /* do sth with display? */
 226         }
 227 }