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NetBSD/games/hack/hack.steal.c

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/* $NetBSD: hack.steal.c,v 1.8 2011/08/06 20:29:37 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 <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 <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.steal.c,v 1.8 2011/08/06 20:29:37 dholland Exp $");
#endif /* not lint */
#include <stdlib.h>
#include "hack.h"
#include "extern.h"
static int stealarm(void);
/*
* actually returns something that fits in an int
*/
long
somegold(void)
{
return ((u.ugold < 100) ? u.ugold :
(u.ugold > 10000) ? rnd(10000) : rnd((int) u.ugold));
}
void
stealgold(struct monst *mtmp)
{
struct gold *gold = g_at(u.ux, u.uy);
long tmp;
if (gold && (!u.ugold || gold->amount > u.ugold || !rn2(5))) {
mtmp->mgold += gold->amount;
freegold(gold);
if (Invisible)
newsym(u.ux, u.uy);
pline("%s quickly snatches some gold from between your feet!",
Monnam(mtmp));
if (!u.ugold || !rn2(5)) {
rloc(mtmp);
mtmp->mflee = 1;
}
} else if (u.ugold) {
u.ugold -= (tmp = somegold());
pline("Your purse feels lighter.");
mtmp->mgold += tmp;
rloc(mtmp);
mtmp->mflee = 1;
flags.botl = 1;
}
}
/* steal armor after he finishes taking it off */
static unsigned stealoid; /* object to be stolen */
static unsigned stealmid; /* monster doing the stealing */
static int
stealarm(void)
{
struct monst *mtmp;
struct obj *otmp;
for (otmp = invent; otmp; otmp = otmp->nobj)
if (otmp->o_id == stealoid) {
for (mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if (mtmp->m_id == stealmid) {
if (dist(mtmp->mx, mtmp->my) < 3) {
freeinv(otmp);
pline("%s steals %s!", Monnam(mtmp), doname(otmp));
mpickobj(mtmp, otmp);
mtmp->mflee = 1;
rloc(mtmp);
}
break;
}
break;
}
stealoid = 0;
return 0;
}
/* returns 1 when something was stolen */
/* (or at least, when N should flee now) */
/* avoid stealing the object stealoid */
int
steal(struct monst *mtmp)
{
struct obj *otmp;
int tmp;
int named = 0;
if (!invent) {
if (Blind)
pline("Somebody tries to rob you, but finds nothing to steal.");
else
pline("%s tries to rob you, but she finds nothing to steal!",
Monnam(mtmp));
return (1); /* let her flee */
}
tmp = 0;
for (otmp = invent; otmp; otmp = otmp->nobj)
if (otmp != uarm2)
tmp += ((otmp->owornmask & (W_ARMOR | W_RING)) ? 5 : 1);
tmp = rn2(tmp);
for (otmp = invent; otmp; otmp = otmp->nobj)
if (otmp != uarm2)
if ((tmp -= ((otmp->owornmask & (W_ARMOR | W_RING)) ? 5 : 1))
< 0)
break;
if (!otmp) {
impossible("Steal fails!");
return (0);
}
if (otmp->o_id == stealoid)
return (0);
if ((otmp->owornmask & (W_ARMOR | W_RING))) {
switch (otmp->olet) {
case RING_SYM:
ringoff(otmp);
break;
case ARMOR_SYM:
if (multi < 0 || otmp == uarms) {
setworn((struct obj *) 0, otmp->owornmask & W_ARMOR);
break;
} {
int curssv = otmp->cursed;
otmp->cursed = 0;
stop_occupation();
pline("%s seduces you and %s off your %s.",
Amonnam(mtmp, Blind ? "gentle" : "beautiful"),
otmp->cursed ? "helps you to take"
: "you start taking",
(otmp == uarmg) ? "gloves" :
(otmp == uarmh) ? "helmet" : "armor");
named++;
(void) armoroff(otmp);
otmp->cursed = curssv;
if (multi < 0) {
/*
multi = 0;
nomovemsg = 0;
afternmv = 0;
*/
stealoid = otmp->o_id;
stealmid = mtmp->m_id;
afternmv = stealarm;
return (0);
}
break;
}
default:
impossible("Tried to steal a strange worn thing.");
}
} else if (otmp == uwep)
setuwep((struct obj *) 0);
if (otmp->olet == CHAIN_SYM) {
impossible("How come you are carrying that chain?");
}
if (Punished && otmp == uball) {
Punished = 0;
freeobj(uchain);
free(uchain);
uchain = (struct obj *) 0;
uball->spe = 0;
uball = (struct obj *) 0; /* superfluous */
}
freeinv(otmp);
pline("%s stole %s.", named ? "She" : Monnam(mtmp), doname(otmp));
mpickobj(mtmp, otmp);
return ((multi < 0) ? 0 : 1);
}
void
mpickobj(struct monst *mtmp, struct obj *otmp)
{
otmp->nobj = mtmp->minvent;
mtmp->minvent = otmp;
}
int
stealamulet(struct monst *mtmp)
{
struct obj *otmp;
for (otmp = invent; otmp; otmp = otmp->nobj) {
if (otmp->olet == AMULET_SYM) {
/* might be an imitation one */
if (otmp == uwep)
setuwep((struct obj *) 0);
freeinv(otmp);
mpickobj(mtmp, otmp);
pline("%s stole %s!", Monnam(mtmp), doname(otmp));
return (1);
}
}
return (0);
}
/* release the objects the killed animal has stolen */
void
relobj(struct monst *mtmp, int show)
{
struct obj *otmp, *otmp2;
for (otmp = mtmp->minvent; otmp; otmp = otmp2) {
otmp->ox = mtmp->mx;
otmp->oy = mtmp->my;
otmp2 = otmp->nobj;
otmp->nobj = fobj;
fobj = otmp;
stackobj(fobj);
if (show & cansee(mtmp->mx, mtmp->my))
atl(otmp->ox, otmp->oy, otmp->olet);
}
mtmp->minvent = (struct obj *) 0;
if (mtmp->mgold || mtmp->data->mlet == 'L') {
long tmp;
tmp = (mtmp->mgold > 10000) ? 10000 : mtmp->mgold;
mkgold((long) (tmp + d(dlevel, 30)), mtmp->mx, mtmp->my);
if (show & cansee(mtmp->mx, mtmp->my))
atl(mtmp->mx, mtmp->my, '$');
}
}
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