freebsd-dev/games/hack/hack.shk.c
Jordan K. Hubbard 554eb505f8 Bring in the 4.4 Lite games directory, modulo man page changes and segregation
of the x11 based games.  I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way.  Bleah.
Submitted by:	jkh
1994-09-04 04:03:31 +00:00

988 lines
23 KiB
C

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.shk.c - version 1.0.3 */
#include "hack.h"
#ifdef QUEST
int shlevel = 0;
struct monst *shopkeeper = 0;
struct obj *billobjs = 0;
obfree(obj,merge) register struct obj *obj, *merge; {
free((char *) obj);
}
inshop(){ return(0); }
shopdig(){}
addtobill(){}
subfrombill(){}
splitbill(){}
dopay(){ return(0); }
paybill(){}
doinvbill(){ return(0); }
shkdead(){}
shkcatch(){ return(0); }
shk_move(){ return(0); }
replshk(mtmp,mtmp2) struct monst *mtmp, *mtmp2; {}
char *shkname(){ return(""); }
#else QUEST
#include "hack.mfndpos.h"
#include "def.mkroom.h"
#include "def.eshk.h"
#define ESHK(mon) ((struct eshk *)(&(mon->mextra[0])))
#define NOTANGRY(mon) mon->mpeaceful
#define ANGRY(mon) !NOTANGRY(mon)
extern char plname[], *xname();
extern struct obj *o_on(), *bp_to_obj();
/* Descriptor of current shopkeeper. Note that the bill need not be
per-shopkeeper, since it is valid only when in a shop. */
static struct monst *shopkeeper = 0;
static struct bill_x *bill;
static int shlevel = 0; /* level of this shopkeeper */
struct obj *billobjs; /* objects on bill with bp->useup */
/* only accessed here and by save & restore */
static long int total; /* filled by addupbill() */
static long int followmsg; /* last time of follow message */
/*
invariants: obj->unpaid iff onbill(obj) [unless bp->useup]
obj->quan <= bp->bquan
*/
char shtypes[] = { /* 8 shoptypes: 7 specialized, 1 mixed */
RING_SYM, WAND_SYM, WEAPON_SYM, FOOD_SYM, SCROLL_SYM,
POTION_SYM, ARMOR_SYM, 0
};
static char *shopnam[] = {
"engagement ring", "walking cane", "antique weapon",
"delicatessen", "second hand book", "liquor",
"used armor", "assorted antiques"
};
char *
shkname(mtmp) /* called in do_name.c */
register struct monst *mtmp;
{
return(ESHK(mtmp)->shknam);
}
static void setpaid();
shkdead(mtmp) /* called in mon.c */
register struct monst *mtmp;
{
register struct eshk *eshk = ESHK(mtmp);
if(eshk->shoplevel == dlevel)
rooms[eshk->shoproom].rtype = 0;
if(mtmp == shopkeeper) {
setpaid();
shopkeeper = 0;
bill = (struct bill_x *) -1000; /* dump core when referenced */
}
}
replshk(mtmp,mtmp2)
register struct monst *mtmp, *mtmp2;
{
if(mtmp == shopkeeper) {
shopkeeper = mtmp2;
bill = &(ESHK(shopkeeper)->bill[0]);
}
}
static void
setpaid(){ /* caller has checked that shopkeeper exists */
/* either we paid or left the shop or he just died */
register struct obj *obj;
register struct monst *mtmp;
for(obj = invent; obj; obj = obj->nobj)
obj->unpaid = 0;
for(obj = fobj; obj; obj = obj->nobj)
obj->unpaid = 0;
for(obj = fcobj; obj; obj = obj->nobj)
obj->unpaid = 0;
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
for(obj = mtmp->minvent; obj; obj = obj->nobj)
obj->unpaid = 0;
for(mtmp = fallen_down; mtmp; mtmp = mtmp->nmon)
for(obj = mtmp->minvent; obj; obj = obj->nobj)
obj->unpaid = 0;
while(obj = billobjs){
billobjs = obj->nobj;
free((char *) obj);
}
ESHK(shopkeeper)->billct = 0;
}
static
addupbill(){ /* delivers result in total */
/* caller has checked that shopkeeper exists */
register ct = ESHK(shopkeeper)->billct;
register struct bill_x *bp = bill;
total = 0;
while(ct--){
total += bp->price * bp->bquan;
bp++;
}
}
inshop(){
register roomno = inroom(u.ux,u.uy);
static void findshk();
/* Did we just leave a shop? */
if(u.uinshop &&
(u.uinshop != roomno + 1 || shlevel != dlevel || !shopkeeper)) {
if(shopkeeper) {
if(ESHK(shopkeeper)->billct) {
if(inroom(shopkeeper->mx, shopkeeper->my)
== u.uinshop - 1) /* ab@unido */
pline("Somehow you escaped the shop without paying!");
addupbill();
pline("You stole for a total worth of %ld zorkmids.",
total);
ESHK(shopkeeper)->robbed += total;
setpaid();
if((rooms[ESHK(shopkeeper)->shoproom].rtype == GENERAL)
== (rn2(3) == 0))
ESHK(shopkeeper)->following = 1;
}
shopkeeper = 0;
shlevel = 0;
}
u.uinshop = 0;
}
/* Did we just enter a zoo of some kind? */
if(roomno >= 0) {
register int rt = rooms[roomno].rtype;
register struct monst *mtmp;
if(rt == ZOO) {
pline("Welcome to David's treasure zoo!");
} else
if(rt == SWAMP) {
pline("It looks rather muddy down here.");
} else
if(rt == MORGUE) {
if(midnight())
pline("Go away! Go away!");
else
pline("You get an uncanny feeling ...");
} else
rt = 0;
if(rt != 0) {
rooms[roomno].rtype = 0;
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if(rt != ZOO || !rn2(3))
mtmp->msleep = 0;
}
}
/* Did we just enter a shop? */
if(roomno >= 0 && rooms[roomno].rtype >= 8) {
if(shlevel != dlevel || !shopkeeper
|| ESHK(shopkeeper)->shoproom != roomno)
findshk(roomno);
if(!shopkeeper) {
rooms[roomno].rtype = 0;
u.uinshop = 0;
} else if(!u.uinshop){
if(!ESHK(shopkeeper)->visitct ||
strncmp(ESHK(shopkeeper)->customer, plname, PL_NSIZ)){
/* He seems to be new here */
ESHK(shopkeeper)->visitct = 0;
ESHK(shopkeeper)->following = 0;
(void) strncpy(ESHK(shopkeeper)->customer,plname,PL_NSIZ);
NOTANGRY(shopkeeper) = 1;
}
if(!ESHK(shopkeeper)->following) {
boolean box, pick;
pline("Hello %s! Welcome%s to %s's %s shop!",
plname,
ESHK(shopkeeper)->visitct++ ? " again" : "",
shkname(shopkeeper),
shopnam[rooms[ESHK(shopkeeper)->shoproom].rtype - 8] );
box = carrying(ICE_BOX);
pick = carrying(PICK_AXE);
if(box || pick) {
if(dochug(shopkeeper)) {
u.uinshop = 0; /* he died moving */
return(0);
}
pline("Will you please leave your %s outside?",
(box && pick) ? "box and pick-axe" :
box ? "box" : "pick-axe");
}
}
u.uinshop = roomno + 1;
}
}
return(u.uinshop);
}
static void
findshk(roomno)
register roomno;
{
register struct monst *mtmp;
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if(mtmp->isshk && ESHK(mtmp)->shoproom == roomno
&& ESHK(mtmp)->shoplevel == dlevel) {
shopkeeper = mtmp;
bill = &(ESHK(shopkeeper)->bill[0]);
shlevel = dlevel;
if(ANGRY(shopkeeper) &&
strncmp(ESHK(shopkeeper)->customer,plname,PL_NSIZ))
NOTANGRY(shopkeeper) = 1;
/* billobjs = 0; -- this is wrong if we save in a shop */
/* (and it is harmless to have too many things in billobjs) */
return;
}
shopkeeper = 0;
shlevel = 0;
bill = (struct bill_x *) -1000; /* dump core when referenced */
}
static struct bill_x *
onbill(obj) register struct obj *obj; {
register struct bill_x *bp;
if(!shopkeeper) return(0);
for(bp = bill; bp < &bill[ESHK(shopkeeper)->billct]; bp++)
if(bp->bo_id == obj->o_id) {
if(!obj->unpaid) pline("onbill: paid obj on bill?");
return(bp);
}
if(obj->unpaid) pline("onbill: unpaid obj not on bill?");
return(0);
}
/* called with two args on merge */
obfree(obj,merge) register struct obj *obj, *merge; {
register struct bill_x *bp = onbill(obj);
register struct bill_x *bpm;
if(bp) {
if(!merge){
bp->useup = 1;
obj->unpaid = 0; /* only for doinvbill */
obj->nobj = billobjs;
billobjs = obj;
return;
}
bpm = onbill(merge);
if(!bpm){
/* this used to be a rename */
impossible("obfree: not on bill??");
return;
} else {
/* this was a merger */
bpm->bquan += bp->bquan;
ESHK(shopkeeper)->billct--;
*bp = bill[ESHK(shopkeeper)->billct];
}
}
free((char *) obj);
}
static
pay(tmp,shkp)
long tmp;
register struct monst *shkp;
{
long robbed = ESHK(shkp)->robbed;
u.ugold -= tmp;
shkp->mgold += tmp;
flags.botl = 1;
if(robbed) {
robbed -= tmp;
if(robbed < 0) robbed = 0;
ESHK(shkp)->robbed = robbed;
}
}
dopay(){
long ltmp;
register struct bill_x *bp;
register struct monst *shkp;
int pass, tmp;
static int dopayobj();
multi = 0;
(void) inshop();
for(shkp = fmon; shkp; shkp = shkp->nmon)
if(shkp->isshk && dist(shkp->mx,shkp->my) < 3)
break;
if(!shkp && u.uinshop &&
inroom(shopkeeper->mx,shopkeeper->my) == ESHK(shopkeeper)->shoproom)
shkp = shopkeeper;
if(!shkp) {
pline("There is nobody here to receive your payment.");
return(0);
}
ltmp = ESHK(shkp)->robbed;
if(shkp != shopkeeper && NOTANGRY(shkp)) {
if(!ltmp) {
pline("You do not owe %s anything.", monnam(shkp));
} else
if(!u.ugold) {
pline("You have no money.");
} else {
long ugold = u.ugold;
if(u.ugold > ltmp) {
pline("You give %s the %ld gold pieces he asked for.",
monnam(shkp), ltmp);
pay(ltmp, shkp);
} else {
pline("You give %s all your gold.", monnam(shkp));
pay(u.ugold, shkp);
}
if(ugold < ltmp/2) {
pline("Unfortunately, he doesn't look satisfied.");
} else {
ESHK(shkp)->robbed = 0;
ESHK(shkp)->following = 0;
if(ESHK(shkp)->shoplevel != dlevel) {
/* For convenience's sake, let him disappear */
shkp->minvent = 0; /* %% */
shkp->mgold = 0;
mondead(shkp);
}
}
}
return(1);
}
if(!ESHK(shkp)->billct){
pline("You do not owe %s anything.", monnam(shkp));
if(!u.ugold){
pline("Moreover, you have no money.");
return(1);
}
if(ESHK(shkp)->robbed){
#define min(a,b) ((a<b)?a:b)
pline("But since his shop has been robbed recently,");
pline("you %srepay %s's expenses.",
(u.ugold < ESHK(shkp)->robbed) ? "partially " : "",
monnam(shkp));
pay(min(u.ugold, ESHK(shkp)->robbed), shkp);
ESHK(shkp)->robbed = 0;
return(1);
}
if(ANGRY(shkp)){
pline("But in order to appease %s,",
amonnam(shkp, "angry"));
if(u.ugold >= 1000){
ltmp = 1000;
pline(" you give him 1000 gold pieces.");
} else {
ltmp = u.ugold;
pline(" you give him all your money.");
}
pay(ltmp, shkp);
if(strncmp(ESHK(shkp)->customer, plname, PL_NSIZ)
|| rn2(3)){
pline("%s calms down.", Monnam(shkp));
NOTANGRY(shkp) = 1;
} else pline("%s is as angry as ever.",
Monnam(shkp));
}
return(1);
}
if(shkp != shopkeeper) {
impossible("dopay: not to shopkeeper?");
if(shopkeeper) setpaid();
return(0);
}
for(pass = 0; pass <= 1; pass++) {
tmp = 0;
while(tmp < ESHK(shopkeeper)->billct) {
bp = &bill[tmp];
if(!pass && !bp->useup) {
tmp++;
continue;
}
if(!dopayobj(bp)) return(1);
bill[tmp] = bill[--ESHK(shopkeeper)->billct];
}
}
pline("Thank you for shopping in %s's %s store!",
shkname(shopkeeper),
shopnam[rooms[ESHK(shopkeeper)->shoproom].rtype - 8]);
NOTANGRY(shopkeeper) = 1;
return(1);
}
/* return 1 if paid successfully */
/* 0 if not enough money */
/* -1 if object could not be found (but was paid) */
static
dopayobj(bp) register struct bill_x *bp; {
register struct obj *obj;
long ltmp;
/* find the object on one of the lists */
obj = bp_to_obj(bp);
if(!obj) {
impossible("Shopkeeper administration out of order.");
setpaid(); /* be nice to the player */
return(0);
}
if(!obj->unpaid && !bp->useup){
impossible("Paid object on bill??");
return(1);
}
obj->unpaid = 0;
ltmp = bp->price * bp->bquan;
if(ANGRY(shopkeeper)) ltmp += ltmp/3;
if(u.ugold < ltmp){
pline("You don't have gold enough to pay %s.",
doname(obj));
obj->unpaid = 1;
return(0);
}
pay(ltmp, shopkeeper);
pline("You bought %s for %ld gold piece%s.",
doname(obj), ltmp, plur(ltmp));
if(bp->useup) {
register struct obj *otmp = billobjs;
if(obj == billobjs)
billobjs = obj->nobj;
else {
while(otmp && otmp->nobj != obj) otmp = otmp->nobj;
if(otmp) otmp->nobj = obj->nobj;
else pline("Error in shopkeeper administration.");
}
free((char *) obj);
}
return(1);
}
/* routine called after dying (or quitting) with nonempty bill */
paybill(){
if(shlevel == dlevel && shopkeeper && ESHK(shopkeeper)->billct){
addupbill();
if(total > u.ugold){
shopkeeper->mgold += u.ugold;
u.ugold = 0;
pline("%s comes and takes all your possessions.",
Monnam(shopkeeper));
} else {
u.ugold -= total;
shopkeeper->mgold += total;
pline("%s comes and takes the %ld zorkmids you owed him.",
Monnam(shopkeeper), total);
}
setpaid(); /* in case we create bones */
}
}
/* find obj on one of the lists */
struct obj *
bp_to_obj(bp)
register struct bill_x *bp;
{
register struct obj *obj;
register struct monst *mtmp;
register unsigned id = bp->bo_id;
if(bp->useup)
obj = o_on(id, billobjs);
else if(!(obj = o_on(id, invent)) &&
!(obj = o_on(id, fobj)) &&
!(obj = o_on(id, fcobj))) {
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if(obj = o_on(id, mtmp->minvent))
break;
for(mtmp = fallen_down; mtmp; mtmp = mtmp->nmon)
if(obj = o_on(id, mtmp->minvent))
break;
}
return(obj);
}
static int getprice();
/* called in hack.c when we pickup an object */
addtobill(obj) register struct obj *obj; {
register struct bill_x *bp;
if(!inshop() ||
(u.ux == ESHK(shopkeeper)->shk.x && u.uy == ESHK(shopkeeper)->shk.y) ||
(u.ux == ESHK(shopkeeper)->shd.x && u.uy == ESHK(shopkeeper)->shd.y) ||
onbill(obj) /* perhaps we threw it away earlier */
) return;
if(ESHK(shopkeeper)->billct == BILLSZ){
pline("You got that for free!");
return;
}
bp = &bill[ESHK(shopkeeper)->billct];
bp->bo_id = obj->o_id;
bp->bquan = obj->quan;
bp->useup = 0;
bp->price = getprice(obj);
ESHK(shopkeeper)->billct++;
obj->unpaid = 1;
}
splitbill(obj,otmp) register struct obj *obj, *otmp; {
/* otmp has been split off from obj */
register struct bill_x *bp;
register int tmp;
bp = onbill(obj);
if(!bp) {
impossible("splitbill: not on bill?");
return;
}
if(bp->bquan < otmp->quan) {
impossible("Negative quantity on bill??");
}
if(bp->bquan == otmp->quan) {
impossible("Zero quantity on bill??");
}
bp->bquan -= otmp->quan;
/* addtobill(otmp); */
if(ESHK(shopkeeper)->billct == BILLSZ) otmp->unpaid = 0;
else {
tmp = bp->price;
bp = &bill[ESHK(shopkeeper)->billct];
bp->bo_id = otmp->o_id;
bp->bquan = otmp->quan;
bp->useup = 0;
bp->price = tmp;
ESHK(shopkeeper)->billct++;
}
}
subfrombill(obj) register struct obj *obj; {
long ltmp;
register int tmp;
register struct obj *otmp;
register struct bill_x *bp;
if(!inshop() || (u.ux == ESHK(shopkeeper)->shk.x && u.uy == ESHK(shopkeeper)->shk.y) ||
(u.ux == ESHK(shopkeeper)->shd.x && u.uy == ESHK(shopkeeper)->shd.y))
return;
if((bp = onbill(obj)) != 0){
obj->unpaid = 0;
if(bp->bquan > obj->quan){
otmp = newobj(0);
*otmp = *obj;
bp->bo_id = otmp->o_id = flags.ident++;
otmp->quan = (bp->bquan -= obj->quan);
otmp->owt = 0; /* superfluous */
otmp->onamelth = 0;
bp->useup = 1;
otmp->nobj = billobjs;
billobjs = otmp;
return;
}
ESHK(shopkeeper)->billct--;
*bp = bill[ESHK(shopkeeper)->billct];
return;
}
if(obj->unpaid){
pline("%s didn't notice.", Monnam(shopkeeper));
obj->unpaid = 0;
return; /* %% */
}
/* he dropped something of his own - probably wants to sell it */
if(shopkeeper->msleep || shopkeeper->mfroz ||
inroom(shopkeeper->mx,shopkeeper->my) != ESHK(shopkeeper)->shoproom)
return;
if(ESHK(shopkeeper)->billct == BILLSZ ||
((tmp = shtypes[rooms[ESHK(shopkeeper)->shoproom].rtype-8]) && tmp != obj->olet)
|| index("_0", obj->olet)) {
pline("%s seems not interested.", Monnam(shopkeeper));
return;
}
ltmp = getprice(obj) * obj->quan;
if(ANGRY(shopkeeper)) {
ltmp /= 3;
NOTANGRY(shopkeeper) = 1;
} else ltmp /= 2;
if(ESHK(shopkeeper)->robbed){
if((ESHK(shopkeeper)->robbed -= ltmp) < 0)
ESHK(shopkeeper)->robbed = 0;
pline("Thank you for your contribution to restock this recently plundered shop.");
return;
}
if(ltmp > shopkeeper->mgold)
ltmp = shopkeeper->mgold;
pay(-ltmp, shopkeeper);
if(!ltmp)
pline("%s gladly accepts %s but cannot pay you at present.",
Monnam(shopkeeper), doname(obj));
else
pline("You sold %s and got %ld gold piece%s.", doname(obj), ltmp,
plur(ltmp));
}
doinvbill(mode)
int mode; /* 0: deliver count 1: paged */
{
register struct bill_x *bp;
register struct obj *obj;
long totused, thisused;
char buf[BUFSZ];
if(mode == 0) {
register int cnt = 0;
if(shopkeeper)
for(bp = bill; bp - bill < ESHK(shopkeeper)->billct; bp++)
if(bp->useup ||
((obj = bp_to_obj(bp)) && obj->quan < bp->bquan))
cnt++;
return(cnt);
}
if(!shopkeeper) {
impossible("doinvbill: no shopkeeper?");
return(0);
}
set_pager(0);
if(page_line("Unpaid articles already used up:") || page_line(""))
goto quit;
totused = 0;
for(bp = bill; bp - bill < ESHK(shopkeeper)->billct; bp++) {
obj = bp_to_obj(bp);
if(!obj) {
impossible("Bad shopkeeper administration.");
goto quit;
}
if(bp->useup || bp->bquan > obj->quan) {
register int cnt, oquan, uquan;
oquan = obj->quan;
uquan = (bp->useup ? bp->bquan : bp->bquan - oquan);
thisused = bp->price * uquan;
totused += thisused;
obj->quan = uquan; /* cheat doname */
(void) sprintf(buf, "x - %s", doname(obj));
obj->quan = oquan; /* restore value */
for(cnt = 0; buf[cnt]; cnt++);
while(cnt < 50)
buf[cnt++] = ' ';
(void) sprintf(&buf[cnt], " %5ld zorkmids", thisused);
if(page_line(buf))
goto quit;
}
}
(void) sprintf(buf, "Total:%50ld zorkmids", totused);
if(page_line("") || page_line(buf))
goto quit;
set_pager(1);
return(0);
quit:
set_pager(2);
return(0);
}
static
getprice(obj) register struct obj *obj; {
register int tmp, ac;
static int realhunger();
switch(obj->olet){
case AMULET_SYM:
tmp = 10*rnd(500);
break;
case TOOL_SYM:
tmp = 10*rnd((obj->otyp == EXPENSIVE_CAMERA) ? 150 : 30);
break;
case RING_SYM:
tmp = 10*rnd(100);
break;
case WAND_SYM:
tmp = 10*rnd(100);
break;
case SCROLL_SYM:
tmp = 10*rnd(50);
#ifdef MAIL
if(obj->otyp == SCR_MAIL)
tmp = rnd(5);
#endif MAIL
break;
case POTION_SYM:
tmp = 10*rnd(50);
break;
case FOOD_SYM:
tmp = 10*rnd(5 + (2000/realhunger()));
break;
case GEM_SYM:
tmp = 10*rnd(20);
break;
case ARMOR_SYM:
ac = ARM_BONUS(obj);
if(ac <= -10) /* probably impossible */
ac = -9;
tmp = 100 + ac*ac*rnd(10+ac);
break;
case WEAPON_SYM:
if(obj->otyp < BOOMERANG)
tmp = 5*rnd(10);
else if(obj->otyp == LONG_SWORD ||
obj->otyp == TWO_HANDED_SWORD)
tmp = 10*rnd(150);
else tmp = 10*rnd(75);
break;
case CHAIN_SYM:
pline("Strange ..., carrying a chain?");
case BALL_SYM:
tmp = 10;
break;
default:
tmp = 10000;
}
return(tmp);
}
static
realhunger(){ /* not completely foolproof */
register tmp = u.uhunger;
register struct obj *otmp = invent;
while(otmp){
if(otmp->olet == FOOD_SYM && !otmp->unpaid)
tmp += objects[otmp->otyp].nutrition;
otmp = otmp->nobj;
}
return((tmp <= 0) ? 1 : tmp);
}
shkcatch(obj)
register struct obj *obj;
{
register struct monst *shkp = shopkeeper;
if(u.uinshop && shkp && !shkp->mfroz && !shkp->msleep &&
u.dx && u.dy &&
inroom(u.ux+u.dx, u.uy+u.dy) + 1 == u.uinshop &&
shkp->mx == ESHK(shkp)->shk.x && shkp->my == ESHK(shkp)->shk.y &&
u.ux == ESHK(shkp)->shd.x && u.uy == ESHK(shkp)->shd.y) {
pline("%s nimbly catches the %s.", Monnam(shkp), xname(obj));
obj->nobj = shkp->minvent;
shkp->minvent = obj;
return(1);
}
return(0);
}
/*
* shk_move: return 1: he moved 0: he didnt -1: let m_move do it
*/
shk_move(shkp)
register struct monst *shkp;
{
register struct monst *mtmp;
register struct permonst *mdat = shkp->data;
register xchar gx,gy,omx,omy,nx,ny,nix,niy;
register schar appr,i;
register int udist;
int z;
schar shkroom,chi,chcnt,cnt;
boolean uondoor, satdoor, avoid, badinv;
coord poss[9];
int info[9];
struct obj *ib = 0;
omx = shkp->mx;
omy = shkp->my;
if((udist = dist(omx,omy)) < 3) {
if(ANGRY(shkp)) {
(void) hitu(shkp, d(mdat->damn, mdat->damd)+1);
return(0);
}
if(ESHK(shkp)->following) {
if(strncmp(ESHK(shkp)->customer, plname, PL_NSIZ)){
pline("Hello %s! I was looking for %s.",
plname, ESHK(shkp)->customer);
ESHK(shkp)->following = 0;
return(0);
}
if(!ESHK(shkp)->robbed) { /* impossible? */
ESHK(shkp)->following = 0;
return(0);
}
if(moves > followmsg+4) {
pline("Hello %s! Didn't you forget to pay?",
plname);
followmsg = moves;
}
if(udist < 2)
return(0);
}
}
shkroom = inroom(omx,omy);
appr = 1;
gx = ESHK(shkp)->shk.x;
gy = ESHK(shkp)->shk.y;
satdoor = (gx == omx && gy == omy);
if(ESHK(shkp)->following || ((z = holetime()) >= 0 && z*z <= udist)){
gx = u.ux;
gy = u.uy;
if(shkroom < 0 || shkroom != inroom(u.ux,u.uy))
if(udist > 4)
return(-1); /* leave it to m_move */
} else if(ANGRY(shkp)) {
long saveBlind = Blind;
Blind = 0;
if(shkp->mcansee && !Invis && cansee(omx,omy)) {
gx = u.ux;
gy = u.uy;
}
Blind = saveBlind;
avoid = FALSE;
} else {
#define GDIST(x,y) ((x-gx)*(x-gx)+(y-gy)*(y-gy))
if(Invis)
avoid = FALSE;
else {
uondoor = (u.ux == ESHK(shkp)->shd.x &&
u.uy == ESHK(shkp)->shd.y);
if(uondoor) {
if(ESHK(shkp)->billct)
pline("Hello %s! Will you please pay before leaving?",
plname);
badinv = (carrying(PICK_AXE) || carrying(ICE_BOX));
if(satdoor && badinv)
return(0);
avoid = !badinv;
} else {
avoid = (u.uinshop && dist(gx,gy) > 8);
badinv = FALSE;
}
if(((!ESHK(shkp)->robbed && !ESHK(shkp)->billct) || avoid)
&& GDIST(omx,omy) < 3){
if(!badinv && !online(omx,omy))
return(0);
if(satdoor)
appr = gx = gy = 0;
}
}
}
if(omx == gx && omy == gy)
return(0);
if(shkp->mconf) {
avoid = FALSE;
appr = 0;
}
nix = omx;
niy = omy;
cnt = mfndpos(shkp,poss,info,ALLOW_SSM);
if(avoid && uondoor) { /* perhaps we cannot avoid him */
for(i=0; i<cnt; i++)
if(!(info[i] & NOTONL)) goto notonl_ok;
avoid = FALSE;
notonl_ok:
;
}
chi = -1;
chcnt = 0;
for(i=0; i<cnt; i++){
nx = poss[i].x;
ny = poss[i].y;
if(levl[nx][ny].typ == ROOM
|| shkroom != ESHK(shkp)->shoproom
|| ESHK(shkp)->following) {
#ifdef STUPID
/* cater for stupid compilers */
register int zz;
#endif STUPID
if(uondoor && (ib = sobj_at(ICE_BOX, nx, ny))) {
nix = nx; niy = ny; chi = i; break;
}
if(avoid && (info[i] & NOTONL))
continue;
if((!appr && !rn2(++chcnt)) ||
#ifdef STUPID
(appr && (zz = GDIST(nix,niy)) && zz > GDIST(nx,ny))
#else
(appr && GDIST(nx,ny) < GDIST(nix,niy))
#endif STUPID
) {
nix = nx;
niy = ny;
chi = i;
}
}
}
if(nix != omx || niy != omy){
if(info[chi] & ALLOW_M){
mtmp = m_at(nix,niy);
if(hitmm(shkp,mtmp) == 1 && rn2(3) &&
hitmm(mtmp,shkp) == 2) return(2);
return(0);
} else if(info[chi] & ALLOW_U){
(void) hitu(shkp, d(mdat->damn, mdat->damd)+1);
return(0);
}
shkp->mx = nix;
shkp->my = niy;
pmon(shkp);
if(ib) {
freeobj(ib);
mpickobj(shkp, ib);
}
return(1);
}
return(0);
}
/* He is digging in the shop. */
shopdig(fall)
register int fall;
{
if(!fall) {
if(u.utraptype == TT_PIT)
pline("\"Be careful, sir, or you might fall through the floor.\"");
else
pline("\"Please, do not damage the floor here.\"");
} else if(dist(shopkeeper->mx, shopkeeper->my) < 3) {
register struct obj *obj, *obj2;
pline("%s grabs your backpack!", shkname(shopkeeper));
for(obj = invent; obj; obj = obj2) {
obj2 = obj->nobj;
if(obj->owornmask) continue;
freeinv(obj);
obj->nobj = shopkeeper->minvent;
shopkeeper->minvent = obj;
if(obj->unpaid)
subfrombill(obj);
}
}
}
#endif QUEST
online(x,y) {
return(x==u.ux || y==u.uy ||
(x-u.ux)*(x-u.ux) == (y-u.uy)*(y-u.uy));
}
/* Does this monster follow me downstairs? */
follower(mtmp)
register struct monst *mtmp;
{
return( mtmp->mtame || index("1TVWZi&, ", mtmp->data->mlet)
#ifndef QUEST
|| (mtmp->isshk && ESHK(mtmp)->following)
#endif QUEST
);
}