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hack.mkobj.c revision 1.6
      1 /*	$NetBSD: hack.mkobj.c,v 1.6 2003/04/02 18:36:38 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 (at) 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 1.6 2003/04/02 18:36:38 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 }
    228