games/hack/hack.mkobj.c

   1 /*      $NetBSD: hack.mkobj.c,v 1.7 2009/06/07 18:30:39 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 <sys/cdefs.h>
  65 #ifndef lint
  66 __RCSID("$NetBSD: hack.mkobj.c,v 1.7 2009/06/07 18:30:39 dholland Exp $");
  67 #endif                          /* not lint */
  68
  69 #include "hack.h"
  70 #include "extern.h"
  71
  72 static const char mkobjstr[] = "))[[!!!!????%%%%/=**))[[!!!!????%%%%/=**(%";
  73
  74 struct obj     *
  75 mkobj_at(int let, int x, int y)
  76 {
  77         struct obj     *otmp = mkobj(let);
  78         otmp->ox = x;
  79         otmp->oy = y;
  80         otmp->nobj = fobj;
  81         fobj = otmp;
  82         return (otmp);
  83 }
  84
  85 void
  86 mksobj_at(int otyp, int x, int y)
  87 {
  88         struct obj     *otmp = mksobj(otyp);
  89         otmp->ox = x;
  90         otmp->oy = y;
  91         otmp->nobj = fobj;
  92         fobj = otmp;
  93 }
  94
  95 struct obj     *
  96 mkobj(int let)
  97 {
  98         if (!let)
  99                 let = mkobjstr[rn2(sizeof(mkobjstr) - 1)];
 100         return (
 101                 mksobj(
 102                        letter(let) ?
 103           CORPSE + ((let > 'Z') ? (let - 'a' + 'Z' - '@' + 1) : (let - '@'))
 104                        : probtype(let)
 105                        )
 106                 );
 107 }
 108
 109
 110 struct obj      zeroobj;
 111
 112 struct obj     *
 113 mksobj(int otyp)
 114 {
 115         struct obj     *otmp;
 116         char            let = objects[otyp].oc_olet;
 117
 118         otmp = newobj(0);
 119         *otmp = zeroobj;
 120         otmp->age = moves;
 121         otmp->o_id = flags.ident++;
 122         otmp->quan = 1;
 123         otmp->olet = let;
 124         otmp->otyp = otyp;
 125         otmp->dknown = strchr("/=!?*", let) ? 0 : 1;
 126         switch (let) {
 127         case WEAPON_SYM:
 128                 otmp->quan = (otmp->otyp <= ROCK) ? rn1(6, 6) : 1;
 129                 if (!rn2(11))
 130                         otmp->spe = rnd(3);
 131                 else if (!rn2(10)) {
 132                         otmp->cursed = 1;
 133                         otmp->spe = -rnd(3);
 134                 }
 135                 break;
 136         case FOOD_SYM:
 137                 if (otmp->otyp >= CORPSE)
 138                         break;
 139 #ifdef NOT_YET_IMPLEMENTED
 140                 /* if tins are to be identified, need to adapt doname() etc */
 141                 if (otmp->otyp == TIN)
 142                         otmp->spe = rnd(...);
 143 #endif  /* NOT_YET_IMPLEMENTED */
 144                 /* fall into next case */
 145         case GEM_SYM:
 146                 otmp->quan = rn2(6) ? 1 : 2;
 147         case TOOL_SYM:
 148         case CHAIN_SYM:
 149         case BALL_SYM:
 150         case ROCK_SYM:
 151         case POTION_SYM:
 152         case SCROLL_SYM:
 153         case AMULET_SYM:
 154                 break;
 155         case ARMOR_SYM:
 156                 if (!rn2(8))
 157                         otmp->cursed = 1;
 158                 if (!rn2(10))
 159                         otmp->spe = rnd(3);
 160                 else if (!rn2(9)) {
 161                         otmp->spe = -rnd(3);
 162                         otmp->cursed = 1;
 163                 }
 164                 break;
 165         case WAND_SYM:
 166                 if (otmp->otyp == WAN_WISHING)
 167                         otmp->spe = 3;
 168                 else
 169                         otmp->spe = rn1(5,
 170                                (objects[otmp->otyp].bits & NODIR) ? 11 : 4);
 171                 break;
 172         case RING_SYM:
 173                 if (objects[otmp->otyp].bits & SPEC) {
 174                         if (!rn2(3)) {
 175                                 otmp->cursed = 1;
 176                                 otmp->spe = -rnd(2);
 177                         } else
 178                                 otmp->spe = rnd(2);
 179                 } else if (otmp->otyp == RIN_TELEPORTATION ||
 180                            otmp->otyp == RIN_AGGRAVATE_MONSTER ||
 181                            otmp->otyp == RIN_HUNGER || !rn2(9))
 182                         otmp->cursed = 1;
 183                 break;
 184         default:
 185                 panic("impossible mkobj");
 186         }
 187         otmp->owt = weight(otmp);
 188         return (otmp);
 189 }
 190
 191 int
 192 letter(int c)
 193 {
 194         return (('@' <= c && c <= 'Z') || ('a' <= c && c <= 'z'));
 195 }
 196
 197 int
 198 weight(struct obj *obj)
 199 {
 200         int             wt = objects[obj->otyp].oc_weight;
 201         return (wt ? wt * obj->quan : (obj->quan + 1) / 2);
 202 }
 203
 204 void
 205 mkgold(long num, int x, int y)
 206 {
 207         struct gold    *gold;
 208         long            amount = (num ? num : 1 + (rnd(dlevel + 2) * rnd(30)));
 209
 210         if ((gold = g_at(x, y)) != NULL)
 211                 gold->amount += amount;
 212         else {
 213                 gold = newgold();
 214                 gold->ngold = fgold;
 215                 gold->gx = x;
 216                 gold->gy = y;
 217                 gold->amount = amount;
 218                 fgold = gold;
 219                 /* do sth with display? */
 220         }
 221 }