4.4BSD/usr/src/games/hack/hack.read.c
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.read.c - version 1.0.3 */
#include "hack.h"
extern struct monst *makemon();
extern struct obj *mkobj_at();
int identify();
doread() {
register struct obj *scroll;
register boolean confused = (Confusion != 0);
register boolean known = FALSE;
extern struct obj *some_armor();
scroll = getobj("?", "read");
if(!scroll) return(0);
if(!scroll->dknown && Blind) {
pline("Being blind, you cannot read the formula on the scroll.");
return(0);
}
if(Blind)
pline("As you pronounce the formula on it, the scroll disappears.");
else
pline("As you read the scroll, it disappears.");
if(confused)
pline("Being confused, you mispronounce the magic words ... ");
switch(scroll->otyp) {
#ifdef MAIL
case SCR_MAIL:
readmail(/* scroll */);
break;
#endif MAIL
case SCR_ENCHANT_ARMOR:
{ register struct obj *otmp = some_armor();
if(!otmp) {
strange_feeling(scroll,"Your skin glows then fades.");
return(1);
}
if(confused) {
pline("Your %s glows silver for a moment.",
objects[otmp->otyp].oc_name);
otmp->rustfree = 1;
break;
}
if(otmp->spe > 3 && rn2(otmp->spe)) {
pline("Your %s glows violently green for a while, then evaporates.",
objects[otmp->otyp].oc_name);
useup(otmp);
break;
}
pline("Your %s glows green for a moment.",
objects[otmp->otyp].oc_name);
otmp->cursed = 0;
otmp->spe++;
break;
}
case SCR_DESTROY_ARMOR:
if(confused) {
register struct obj *otmp = some_armor();
if(!otmp) {
strange_feeling(scroll,"Your bones itch.");
return(1);
}
pline("Your %s glows purple for a moment.",
objects[otmp->otyp].oc_name);
otmp->rustfree = 0;
break;
}
if(uarm) {
pline("Your armor turns to dust and falls to the floor!");
useup(uarm);
} else if(uarmh) {
pline("Your helmet turns to dust and is blown away!");
useup(uarmh);
} else if(uarmg) {
pline("Your gloves vanish!");
useup(uarmg);
selftouch("You");
} else {
strange_feeling(scroll,"Your skin itches.");
return(1);
}
break;
case SCR_CONFUSE_MONSTER:
if(confused) {
pline("Your hands begin to glow purple.");
Confusion += rnd(100);
} else {
pline("Your hands begin to glow blue.");
u.umconf = 1;
}
break;
case SCR_SCARE_MONSTER:
{ register int ct = 0;
register struct monst *mtmp;
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if(cansee(mtmp->mx,mtmp->my)) {
if(confused)
mtmp->mflee = mtmp->mfroz =
mtmp->msleep = 0;
else
mtmp->mflee = 1;
ct++;
}
if(!ct) {
if(confused)
pline("You hear sad wailing in the distance.");
else
pline("You hear maniacal laughter in the distance.");
}
break;
}
case SCR_BLANK_PAPER:
if(confused)
pline("You see strange patterns on this scroll.");
else
pline("This scroll seems to be blank.");
break;
case SCR_REMOVE_CURSE:
{ register struct obj *obj;
if(confused)
pline("You feel like you need some help.");
else
pline("You feel like someone is helping you.");
for(obj = invent; obj ; obj = obj->nobj)
if(obj->owornmask)
obj->cursed = confused;
if(Punished && !confused) {
Punished = 0;
freeobj(uchain);
unpobj(uchain);
free((char *) uchain);
uball->spe = 0;
uball->owornmask &= ~W_BALL;
uchain = uball = (struct obj *) 0;
}
break;
}
case SCR_CREATE_MONSTER:
{ register int cnt = 1;
if(!rn2(73)) cnt += rnd(4);
if(confused) cnt += 12;
while(cnt--)
(void) makemon(confused ? PM_ACID_BLOB :
(struct permonst *) 0, u.ux, u.uy);
break;
}
case SCR_ENCHANT_WEAPON:
if(uwep && confused) {
pline("Your %s glows silver for a moment.",
objects[uwep->otyp].oc_name);
uwep->rustfree = 1;
} else
if(!chwepon(scroll, 1)) /* tests for !uwep */
return(1);
break;
case SCR_DAMAGE_WEAPON:
if(uwep && confused) {
pline("Your %s glows purple for a moment.",
objects[uwep->otyp].oc_name);
uwep->rustfree = 0;
} else
if(!chwepon(scroll, -1)) /* tests for !uwep */
return(1);
break;
case SCR_TAMING:
{ register int i,j;
register int bd = confused ? 5 : 1;
register struct monst *mtmp;
for(i = -bd; i <= bd; i++) for(j = -bd; j <= bd; j++)
if(mtmp = m_at(u.ux+i, u.uy+j))
(void) tamedog(mtmp, (struct obj *) 0);
break;
}
case SCR_GENOCIDE:
{ extern char genocided[], fut_geno[];
char buf[BUFSZ];
register struct monst *mtmp, *mtmp2;
pline("You have found a scroll of genocide!");
known = TRUE;
if(confused)
*buf = u.usym;
else do {
pline("What monster do you want to genocide (Type the letter)? ");
getlin(buf);
} while(strlen(buf) != 1 || !monstersym(*buf));
if(!index(fut_geno, *buf))
charcat(fut_geno, *buf);
if(!index(genocided, *buf))
charcat(genocided, *buf);
else {
pline("Such monsters do not exist in this world.");
break;
}
for(mtmp = fmon; mtmp; mtmp = mtmp2){
mtmp2 = mtmp->nmon;
if(mtmp->data->mlet == *buf)
mondead(mtmp);
}
pline("Wiped out all %c's.", *buf);
if(*buf == u.usym) {
killer = "scroll of genocide";
u.uhp = -1;
}
break;
}
case SCR_LIGHT:
if(!Blind) known = TRUE;
litroom(!confused);
break;
case SCR_TELEPORTATION:
if(confused)
level_tele();
else {
#ifdef QUEST
register int oux = u.ux, ouy = u.uy;
tele();
if(dist(oux, ouy) > 100) known = TRUE;
#else QUEST
register int uroom = inroom(u.ux, u.uy);
tele();
if(uroom != inroom(u.ux, u.uy)) known = TRUE;
#endif QUEST
}
break;
case SCR_GOLD_DETECTION:
/* Unfortunately this code has become slightly less elegant,
now that gold and traps no longer are of the same type. */
if(confused) {
register struct trap *ttmp;
if(!ftrap) {
strange_feeling(scroll, "Your toes stop itching.");
return(1);
} else {
for(ttmp = ftrap; ttmp; ttmp = ttmp->ntrap)
if(ttmp->tx != u.ux || ttmp->ty != u.uy)
goto outtrapmap;
/* only under me - no separate display required */
pline("Your toes itch!");
break;
outtrapmap:
cls();
for(ttmp = ftrap; ttmp; ttmp = ttmp->ntrap)
at(ttmp->tx, ttmp->ty, '$');
prme();
pline("You feel very greedy!");
}
} else {
register struct gold *gtmp;
if(!fgold) {
strange_feeling(scroll, "You feel materially poor.");
return(1);
} else {
known = TRUE;
for(gtmp = fgold; gtmp; gtmp = gtmp->ngold)
if(gtmp->gx != u.ux || gtmp->gy != u.uy)
goto outgoldmap;
/* only under me - no separate display required */
pline("You notice some gold between your feet.");
break;
outgoldmap:
cls();
for(gtmp = fgold; gtmp; gtmp = gtmp->ngold)
at(gtmp->gx, gtmp->gy, '$');
prme();
pline("You feel very greedy, and sense gold!");
}
}
/* common sequel */
more();
docrt();
break;
case SCR_FOOD_DETECTION:
{ register ct = 0, ctu = 0;
register struct obj *obj;
register char foodsym = confused ? POTION_SYM : FOOD_SYM;
for(obj = fobj; obj; obj = obj->nobj)
if(obj->olet == FOOD_SYM) {
if(obj->ox == u.ux && obj->oy == u.uy) ctu++;
else ct++;
}
if(!ct && !ctu) {
strange_feeling(scroll,"Your nose twitches.");
return(1);
} else if(!ct) {
known = TRUE;
pline("You smell %s close nearby.",
confused ? "something" : "food");
} else {
known = TRUE;
cls();
for(obj = fobj; obj; obj = obj->nobj)
if(obj->olet == foodsym)
at(obj->ox, obj->oy, FOOD_SYM);
prme();
pline("Your nose tingles and you smell %s!",
confused ? "something" : "food");
more();
docrt();
}
break;
}
case SCR_IDENTIFY:
/* known = TRUE; */
if(confused)
pline("You identify this as an identify scroll.");
else
pline("This is an identify scroll.");
useup(scroll);
objects[SCR_IDENTIFY].oc_name_known = 1;
if(!confused)
while(
!ggetobj("identify", identify, rn2(5) ? 1 : rn2(5))
&& invent
);
return(1);
case SCR_MAGIC_MAPPING:
{ register struct rm *lev;
register int num, zx, zy;
known = TRUE;
pline("On this scroll %s a map!",
confused ? "was" : "is");
for(zy = 0; zy < ROWNO; zy++)
for(zx = 0; zx < COLNO; zx++) {
if(confused && rn2(7)) continue;
lev = &(levl[zx][zy]);
if((num = lev->typ) == 0)
continue;
if(num == SCORR) {
lev->typ = CORR;
lev->scrsym = CORR_SYM;
} else
if(num == SDOOR) {
lev->typ = DOOR;
lev->scrsym = '+';
/* do sth in doors ? */
} else if(lev->seen) continue;
#ifndef QUEST
if(num != ROOM)
#endif QUEST
{
lev->seen = lev->new = 1;
if(lev->scrsym == ' ' || !lev->scrsym)
newsym(zx,zy);
else
on_scr(zx,zy);
}
}
break;
}
case SCR_AMNESIA:
{ register int zx, zy;
known = TRUE;
for(zx = 0; zx < COLNO; zx++) for(zy = 0; zy < ROWNO; zy++)
if(!confused || rn2(7))
if(!cansee(zx,zy))
levl[zx][zy].seen = 0;
docrt();
pline("Thinking of Maud you forget everything else.");
break;
}
case SCR_FIRE:
{ register int num;
register struct monst *mtmp;
known = TRUE;
if(confused) {
pline("The scroll catches fire and you burn your hands.");
losehp(1, "scroll of fire");
} else {
pline("The scroll erupts in a tower of flame!");
if(Fire_resistance)
pline("You are uninjured.");
else {
num = rnd(6);
u.uhpmax -= num;
losehp(num, "scroll of fire");
}
}
num = (2*num + 1)/3;
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
if(dist(mtmp->mx,mtmp->my) < 3) {
mtmp->mhp -= num;
if(index("FY", mtmp->data->mlet))
mtmp->mhp -= 3*num; /* this might well kill 'F's */
if(mtmp->mhp < 1) {
killed(mtmp);
break; /* primitive */
}
}
}
break;
}
case SCR_PUNISHMENT:
known = TRUE;
if(confused) {
pline("You feel guilty.");
break;
}
pline("You are being punished for your misbehaviour!");
if(Punished){
pline("Your iron ball gets heavier.");
uball->owt += 15;
break;
}
Punished = INTRINSIC;
setworn(mkobj_at(CHAIN_SYM, u.ux, u.uy), W_CHAIN);
setworn(mkobj_at(BALL_SYM, u.ux, u.uy), W_BALL);
uball->spe = 1; /* special ball (see save) */
break;
default:
impossible("What weird language is this written in? (%u)",
scroll->otyp);
}
if(!objects[scroll->otyp].oc_name_known) {
if(known && !confused) {
objects[scroll->otyp].oc_name_known = 1;
more_experienced(0,10);
} else if(!objects[scroll->otyp].oc_uname)
docall(scroll);
}
useup(scroll);
return(1);
}
identify(otmp) /* also called by newmail() */
register struct obj *otmp;
{
objects[otmp->otyp].oc_name_known = 1;
otmp->known = otmp->dknown = 1;
prinv(otmp);
return(1);
}
litroom(on)
register boolean on;
{
register num,zx,zy;
/* first produce the text (provided he is not blind) */
if(Blind) goto do_it;
if(!on) {
if(u.uswallow || !xdnstair || levl[u.ux][u.uy].typ == CORR ||
!levl[u.ux][u.uy].lit) {
pline("It seems even darker in here than before.");
return;
} else
pline("It suddenly becomes dark in here.");
} else {
if(u.uswallow){
pline("%s's stomach is lit.", Monnam(u.ustuck));
return;
}
if(!xdnstair){
pline("Nothing Happens.");
return;
}
#ifdef QUEST
pline("The cave lights up around you, then fades.");
return;
#else QUEST
if(levl[u.ux][u.uy].typ == CORR) {
pline("The corridor lights up around you, then fades.");
return;
} else if(levl[u.ux][u.uy].lit) {
pline("The light here seems better now.");
return;
} else
pline("The room is lit.");
#endif QUEST
}
do_it:
#ifdef QUEST
return;
#else QUEST
if(levl[u.ux][u.uy].lit == on)
return;
if(levl[u.ux][u.uy].typ == DOOR) {
if(IS_ROOM(levl[u.ux][u.uy+1].typ)) zy = u.uy+1;
else if(IS_ROOM(levl[u.ux][u.uy-1].typ)) zy = u.uy-1;
else zy = u.uy;
if(IS_ROOM(levl[u.ux+1][u.uy].typ)) zx = u.ux+1;
else if(IS_ROOM(levl[u.ux-1][u.uy].typ)) zx = u.ux-1;
else zx = u.ux;
} else {
zx = u.ux;
zy = u.uy;
}
for(seelx = u.ux; (num = levl[seelx-1][zy].typ) != CORR && num != 0;
seelx--);
for(seehx = u.ux; (num = levl[seehx+1][zy].typ) != CORR && num != 0;
seehx++);
for(seely = u.uy; (num = levl[zx][seely-1].typ) != CORR && num != 0;
seely--);
for(seehy = u.uy; (num = levl[zx][seehy+1].typ) != CORR && num != 0;
seehy++);
for(zy = seely; zy <= seehy; zy++)
for(zx = seelx; zx <= seehx; zx++) {
levl[zx][zy].lit = on;
if(!Blind && dist(zx,zy) > 2)
if(on) prl(zx,zy); else nosee(zx,zy);
}
if(!on) seehx = 0;
#endif QUEST
}
/* Test whether we may genocide all monsters with symbol ch */
monstersym(ch) /* arnold@ucsfcgl */
register char ch;
{
register struct permonst *mp;
extern struct permonst pm_eel;
/*
* can't genocide certain monsters
*/
if (index("12 &:", ch))
return FALSE;
if (ch == pm_eel.mlet)
return TRUE;
for (mp = mons; mp < &mons[CMNUM+2]; mp++)
if (mp->mlet == ch)
return TRUE;
return FALSE;
}