/*      $NetBSD: hack.mkobj.c,v 1.9 2011/08/07 06:03:45 dholland Exp $  */

/*
* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
* Amsterdam
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Stichting Centrum voor Wiskunde en
* Informatica, nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/*
* Copyright (c) 1982 Jay Fenlason <[email protected]>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.mkobj.c,v 1.9 2011/08/07 06:03:45 dholland Exp $");
#endif                          /* not lint */

#include "hack.h"
#include "extern.h"

static const char mkobjstr[] = "))[[!!!!????%%%%/=**))[[!!!!????%%%%/=**(%";

struct obj     *
mkobj_at(int let, int x, int y)
{
       struct obj     *otmp = mkobj(let);
       otmp->ox = x;
       otmp->oy = y;
       otmp->nobj = fobj;
       fobj = otmp;
       return (otmp);
}

void
mksobj_at(int otyp, int x, int y)
{
       struct obj     *otmp = mksobj(otyp);
       otmp->ox = x;
       otmp->oy = y;
       otmp->nobj = fobj;
       fobj = otmp;
}

struct obj     *
mkobj(int let)
{
       if (!let)
               let = mkobjstr[rn2(sizeof(mkobjstr) - 1)];
       return (
               mksobj(
                      letter(let) ?
         CORPSE + ((let > 'Z') ? (let - 'a' + 'Z' - '@' + 1) : (let - '@'))
                      : probtype(let)
                      )
               );
}


struct obj      zeroobj;

struct obj     *
mksobj(int otyp)
{
       struct obj     *otmp;
       char            let = objects[otyp].oc_olet;

       otmp = newobj(0);
       *otmp = zeroobj;
       otmp->age = moves;
       otmp->o_id = flags.ident++;
       otmp->quan = 1;
       otmp->olet = let;
       otmp->otyp = otyp;
       otmp->dknown = strchr("/=!?*", let) ? 0 : 1;
       switch (let) {
       case WEAPON_SYM:
               otmp->quan = (otmp->otyp <= ROCK) ? rn1(6, 6) : 1;
               if (!rn2(11))
                       otmp->spe = rnd(3);
               else if (!rn2(10)) {
                       otmp->cursed = 1;
                       otmp->spe = -rnd(3);
               }
               break;
       case FOOD_SYM:
               if (otmp->otyp >= CORPSE)
                       break;
#ifdef NOT_YET_IMPLEMENTED
               /* if tins are to be identified, need to adapt doname() etc */
               if (otmp->otyp == TIN)
                       otmp->spe = rnd(...);
#endif  /* NOT_YET_IMPLEMENTED */
               /* FALLTHROUGH */
       case GEM_SYM:
               otmp->quan = rn2(6) ? 1 : 2;
               break;
       case TOOL_SYM:
       case CHAIN_SYM:
       case BALL_SYM:
       case ROCK_SYM:
       case POTION_SYM:
       case SCROLL_SYM:
       case AMULET_SYM:
               break;
       case ARMOR_SYM:
               if (!rn2(8))
                       otmp->cursed = 1;
               if (!rn2(10))
                       otmp->spe = rnd(3);
               else if (!rn2(9)) {
                       otmp->spe = -rnd(3);
                       otmp->cursed = 1;
               }
               break;
       case WAND_SYM:
               if (otmp->otyp == WAN_WISHING)
                       otmp->spe = 3;
               else
                       otmp->spe = rn1(5,
                              (objects[otmp->otyp].bits & NODIR) ? 11 : 4);
               break;
       case RING_SYM:
               if (objects[otmp->otyp].bits & SPEC) {
                       if (!rn2(3)) {
                               otmp->cursed = 1;
                               otmp->spe = -rnd(2);
                       } else
                               otmp->spe = rnd(2);
               } else if (otmp->otyp == RIN_TELEPORTATION ||
                          otmp->otyp == RIN_AGGRAVATE_MONSTER ||
                          otmp->otyp == RIN_HUNGER || !rn2(9))
                       otmp->cursed = 1;
               break;
       default:
               panic("impossible mkobj");
       }
       otmp->owt = weight(otmp);
       return (otmp);
}

int
letter(int c)
{
       return (('@' <= c && c <= 'Z') || ('a' <= c && c <= 'z'));
}

int
weight(struct obj *obj)
{
       int             wt = objects[obj->otyp].oc_weight;
       return (wt ? wt * obj->quan : (obj->quan + 1) / 2);
}

void
mkgold(long num, int x, int y)
{
       struct gold    *gold;
       long            amount = (num ? num : 1 + (rnd(dlevel + 2) * rnd(30)));

       if ((gold = g_at(x, y)) != NULL)
               gold->amount += amount;
       else {
               gold = newgold();
               gold->ngold = fgold;
               gold->gx = x;
               gold->gy = y;
               gold->amount = amount;
               fgold = gold;
               /* do sth with display? */
       }
}