root/games/hack/hack.mkobj.c
/*      $OpenBSD: hack.mkobj.c,v 1.7 2009/10/27 23:59:25 deraadt 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 <hack@gnu.org>
 * 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 "hack.h"

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 */
                /* fall into next case */
        case GEM_SYM:
                otmp->quan = rn2(6) ? 1 : 2;
        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)))
                gold->amount += amount;
        else {
                gold = newgold();
                gold->ngold = fgold;
                gold->gx = x;
                gold->gy = y;
                gold->amount = amount;
                fgold = gold;
                /* do sth with display? */
        }
}