/* returns the maximum damage a defender can do to the attacker via
a passive defense */
int
max_passive_dmg(const struct monst *mdef, const struct monst *magr)
{
int i, n = 0, dmg = 0;
uchar adtyp;
for (i = 0; i < NATTK; i++) {
if ((magr->data->mattk[i].aatyp == AT_NONE) ||
(magr->data->mattk[i].aatyp == AT_BOOM))
break;
n++;
}
for (i = 0; i < NATTK; i++)
if (mdef->data->mattk[i].aatyp == AT_NONE ||
mdef->data->mattk[i].aatyp == AT_BOOM) {
adtyp = mdef->data->mattk[i].adtyp;
if ((adtyp == AD_ACID && !resists_acid(magr)) ||
(adtyp == AD_COLD && !resists_cold(magr)) ||
(adtyp == AD_FIRE && !resists_fire(magr)) ||
(adtyp == AD_ELEC && !resists_elec(magr)) || adtyp == AD_PHYS) {
dmg = mdef->data->mattk[i].damn;
if (!dmg)
dmg = mdef->data->mlevel + 1;
dmg *= mdef->data->mattk[i].damd;
} else
dmg = 0;
return n * dmg;
}
return 0;
}
/* decide whether an artifact's special attacks apply against mtmp */
static int spec_applies(const struct artifact *weap, struct monst *mtmp)
{
const struct permonst *ptr;
boolean yours;
if (!(weap->spfx & (SPFX_DBONUS | SPFX_ATTK)))
return weap->attk.adtyp == AD_PHYS;
yours = (mtmp == &youmonst);
ptr = mtmp->data;
if (weap->spfx & SPFX_DMONS) {
return ptr == &mons[(int)weap->mtype];
} else if (weap->spfx & SPFX_DCLAS) {
return weap->mtype == (unsigned long)ptr->mlet;
} else if (weap->spfx & SPFX_DFLAG1) {
return (ptr->mflags1 & weap->mtype) != 0L;
} else if (weap->spfx & SPFX_DFLAG2) {
return ((ptr->mflags2 & weap->mtype) || (yours &&
((!Upolyd && (urace.selfmask & weap->mtype)) ||
((weap->mtype & M2_WERE) && u.ulycn >= LOW_PM))));
} else if (weap->spfx & SPFX_DALIGN) {
return yours ? (u.ualign.type != weap->alignment) :
(ptr->maligntyp == A_NONE ||
sgn(ptr->maligntyp) != weap->alignment);
} else if (weap->spfx & SPFX_ATTK) {
struct obj *defending_weapon = (yours ? uwep : MON_WEP(mtmp));
if (defending_weapon && defending_weapon->oartifact &&
defends((int)weap->attk.adtyp, defending_weapon))
return FALSE;
switch(weap->attk.adtyp) {
case AD_FIRE:
return !(yours ? Fire_resistance : resists_fire(mtmp));
case AD_COLD:
return !(yours ? Cold_resistance : resists_cold(mtmp));
case AD_ELEC:
return !(yours ? Shock_resistance : resists_elec(mtmp));
case AD_MAGM:
case AD_STUN:
return !(yours ? Antimagic : (rn2(100) < ptr->mr));
case AD_DRST:
return !(yours ? Poison_resistance : resists_poison(mtmp));
case AD_DRLI:
return !(yours ? Drain_resistance : resists_drli(mtmp));
case AD_STON:
return !(yours ? Stone_resistance : resists_ston(mtmp));
default: impossible("Weird weapon special attack.");
}
}
return 0;
}
/* Note: I had to choose one of three possible kinds of "type" when writing
* this function: a wand type (like in zap.c), an adtyp, or an object type.
* Wand types get complex because they must be converted to adtyps for
* determining such things as fire resistance. Adtyps get complex in that
* they don't supply enough information--was it a player or a monster that
* did it, and with a wand, spell, or breath weapon? Object types share both
* these disadvantages....
*
* The descr argument should be used to describe the explosion. It should be
* a string suitable for use with an().
* raylevel is used for explosions caused by skilled wand usage (0=no wand)
*/
void
explode(int x, int y, int type, /* the same as in zap.c */
int dam, char olet, int expltype, const char *descr, int raylevel)
{
int i, j, k, damu = dam;
boolean visible, any_shield, resist_death;
resist_death = FALSE;
int uhurt = 0; /* 0=unhurt, 1=items damaged, 2=you and items damaged */
const char *str;
const char *dispbuf = ""; /* lint suppression; I think the code's OK */
boolean expl_needs_the = TRUE;
int idamres, idamnonres;
struct monst *mtmp;
uchar adtyp;
int explmask[3][3];
/* 0=normal explosion, 1=do shieldeff, 2=do nothing */
boolean shopdamage = FALSE;
#if 0
/* Damage reduction from wand explosions */
if (olet == WAND_CLASS) /* retributive strike */
switch (Role_switch) {
case PM_PRIEST:
case PM_MONK:
case PM_WIZARD:
damu /= 5;
break;
case PM_HEALER:
case PM_KNIGHT:
damu /= 2;
break;
default:
break;
}
#endif
if (olet == MON_EXPLODE) {
str = descr;
adtyp = AD_PHYS;
if (Hallucination) {
int name = rndmonidx();
dispbuf = msgcat(s_suffix(monnam_for_index(name)), " explosion");
expl_needs_the = !monnam_is_pname(name);
} else {
dispbuf = str;
}
} else {
int whattype = abs(type) % 10;
adtyp = whattype + 1;
boolean done = FALSE, hallu = Hallucination;
if (hallu) {
do {
whattype = rn2(8);
} while (whattype == 3);
}
tryagain:
switch (whattype) {
case 0:
str = "magical blast";
break;
case 1:
str =
olet == BURNING_OIL ? "burning oil" : olet ==
SCROLL_CLASS ? "tower of flame" : "fireball";
break;
case 2:
str = "ball of cold";
break;
case 3:
str = "sleeping gas";
break;
case 4:
str = (olet == WAND_CLASS) ? "death field" : "disintegration field";
break;
case 5:
str = "ball of lightning";
break;
case 6:
str = "poison gas cloud";
break;
case 7:
str = "splash of acid";
break;
default:
impossible("explosion base type %d?", type);
return;
}
if (!done) {
dispbuf = str;
done = TRUE;
if (hallu) {
whattype = adtyp - 1;
goto tryagain;
}
}
}
any_shield = visible = FALSE;
for (i = 0; i < 3; i++)
for (j = 0; j < 3; j++) {
if (!isok(i + x - 1, j + y - 1)) {
explmask[i][j] = 2;
continue;
} else
explmask[i][j] = 0;
if (i + x - 1 == u.ux && j + y - 1 == u.uy) {
switch (adtyp) {
case AD_PHYS:
explmask[i][j] = 0;
break;
case AD_MAGM:
explmask[i][j] = !!(raylevel >= P_EXPERT || Antimagic);
break;
case AD_FIRE:
explmask[i][j] = !!Fire_resistance;
break;
case AD_COLD:
explmask[i][j] = !!Cold_resistance;
break;
case AD_SLEE:
explmask[i][j] = !!Sleep_resistance;
break;
case AD_DISN:
if (raylevel == P_UNSKILLED && Drain_resistance)
resist_death = TRUE;
/* why MR doesn't resist general deathfields is beyond me, but... */
if (nonliving(youmonst.data) ||
is_demon(youmonst.data))
resist_death = TRUE;
if (raylevel && Antimagic)
resist_death = TRUE;
if (raylevel >= P_EXPERT && !Drain_resistance)
resist_death = FALSE;
explmask[i][j] =
(olet == WAND_CLASS) ? !!resist_death :
!!Disint_resistance;
break;
case AD_ELEC:
explmask[i][j] = !!Shock_resistance;
break;
case AD_DRST:
explmask[i][j] = !!Poison_resistance;
break;
case AD_ACID:
explmask[i][j] = !!Acid_resistance;
break;
default:
impossible("explosion type %d?", adtyp);
break;
}
}
/* can be both you and mtmp if you're swallowed */
mtmp = m_at(level, i + x - 1, j + y - 1);
if (!mtmp && i + x - 1 == u.ux && j + y - 1 == u.uy)
mtmp = u.usteed;
if (mtmp) {
if (mtmp->mhp < 1)
explmask[i][j] = 2;
else
switch (adtyp) {
case AD_PHYS:
break;
case AD_MAGM:
explmask[i][j] |= (raylevel >= 4 || resists_magm(mtmp));
break;
case AD_FIRE:
explmask[i][j] |= resists_fire(mtmp);
break;
case AD_COLD:
explmask[i][j] |= resists_cold(mtmp);
break;
case AD_SLEE:
explmask[i][j] |= resists_sleep(mtmp);
case AD_DISN:
if (raylevel == P_UNSKILLED && resists_drli(mtmp))
resist_death = TRUE;
if (nonliving(mtmp->data) ||
is_demon(mtmp->data))
resist_death = TRUE;
if (raylevel && resists_magm(mtmp))
resist_death = TRUE;
if (raylevel >= P_EXPERT && !resists_drli(mtmp))
resist_death = FALSE;
explmask[i][j] |=
(olet == WAND_CLASS) ? resist_death :
resists_disint(mtmp);
break;
case AD_ELEC:
explmask[i][j] |= resists_elec(mtmp);
break;
case AD_DRST:
explmask[i][j] |= resists_poison(mtmp);
break;
case AD_ACID:
explmask[i][j] |= resists_acid(mtmp);
break;
default:
impossible("explosion type %d?", adtyp);
break;
}
}
reveal_monster_at(i + x - 1, j + y - 1, TRUE);
if (cansee(i + x - 1, j + y - 1))
visible = TRUE;
if (explmask[i][j] == 1)
any_shield = TRUE;
}
if (visible) {
struct tmp_sym *tsym = tmpsym_init(DISP_BEAM, 0);
/* Start the explosion */
for (i = 0; i < 3; i++)
for (j = 0; j < 3; j++) {
if (explmask[i][j] == 2)
continue;
tmpsym_change(tsym, dbuf_explosion(expltype, explosion[i][j]));
tmpsym_at(tsym, i + x - 1, j + y - 1);
}
flush_screen(); /* will flush screen and output */
if (any_shield && flags.sparkle) { /* simulate shield effect */
for (k = 0; k < SHIELD_COUNT; k++) {
for (i = 0; i < 3; i++)
for (j = 0; j < 3; j++) {
if (explmask[i][j] == 1)
/*
* Bypass tmpsym_at() and send the shield glyphs
* directly to the buffered screen. tmpsym_at()
* will clean up the location for us later.
*/
dbuf_set_effect(i + x - 1, j + y - 1,
dbuf_effect(E_MISC,
shield_static[k]));
}
flush_screen(); /* will flush screen and output */
win_delay_output();
}
/* Cover last shield glyph with blast symbol. */
for (i = 0; i < 3; i++)
for (j = 0; j < 3; j++) {
if (explmask[i][j] == 1)
dbuf_set_effect(i + x - 1, j + y - 1,
dbuf_explosion(expltype,
explosion[i][j]));
}
} else { /* delay a little bit. */
win_delay_output();
win_delay_output();
}
tmpsym_end(tsym); /* clear the explosion */
} else {
if (olet == MON_EXPLODE) {
str = "explosion";
}
You_hear("a blast.");
}
if (dam)
for (i = 0; i < 3; i++)
for (j = 0; j < 3; j++) {
if (explmask[i][j] == 2)
continue;
if (i + x - 1 == u.ux && j + y - 1 == u.uy)
uhurt = (explmask[i][j] == 1) ? 1 : 2;
idamres = idamnonres = 0;
if (type >= 0)
zap_over_floor((xchar) (i + x - 1), (xchar) (j + y - 1),
type, &shopdamage);
mtmp = m_at(level, i + x - 1, j + y - 1);
if (!mtmp && i + x - 1 == u.ux && j + y - 1 == u.uy)
mtmp = u.usteed;
if (!mtmp)
continue;
if (Engulfed && mtmp == u.ustuck) {
if (is_animal(u.ustuck->data))
pline("%s gets %s!", Monnam(u.ustuck),
(adtyp == AD_FIRE) ? "heartburn" :
(adtyp == AD_COLD) ? "chilly" :
(adtyp == AD_DISN) ? ((olet == WAND_CLASS) ?
"irradiated by pure energy"
: "perforated") :
(adtyp == AD_ELEC) ? "shocked" :
(adtyp == AD_DRST) ? "poisoned" :
(adtyp == AD_ACID) ? "an upset stomach" :
"fried");
else
pline("%s gets slightly %s!", Monnam(u.ustuck),
(adtyp == AD_FIRE) ? "toasted" :
(adtyp == AD_COLD) ? "chilly" :
(adtyp == AD_DISN) ? ((olet == WAND_CLASS) ?
"overwhelmed by pure energy"
: "perforated") :
(adtyp == AD_ELEC) ? "shocked" :
(adtyp == AD_DRST) ? "intoxicated" :
(adtyp == AD_ACID) ? "burned" : "fried");
} else if (cansee(i + x - 1, j + y - 1)) {
if (mtmp->m_ap_type) seemimic(mtmp);
pline("%s is caught in %s%s!", Monnam(mtmp),
expl_needs_the ? "the " : "", dispbuf);
}
idamres += destroy_mitem(mtmp, SCROLL_CLASS, (int)adtyp);
idamres += destroy_mitem(mtmp, SPBOOK_CLASS, (int)adtyp);
idamnonres += destroy_mitem(mtmp, POTION_CLASS, (int)adtyp);
idamnonres += destroy_mitem(mtmp, WAND_CLASS, (int)adtyp);
idamnonres += destroy_mitem(mtmp, RING_CLASS, (int)adtyp);
if (explmask[i][j] == 1) {
golemeffects(mtmp, (int)adtyp, dam + idamres);
mtmp->mhp -= idamnonres;
} else {
/* call resist with 0 and do damage manually so 1) we can
get out the message before doing the damage, and 2) we
can call mondied, not killed, if it's not your blast */
int mdam = dam;
if (resist(mtmp, olet, 0, FALSE)) {
if (cansee(i + x - 1, j + y - 1))
pline("%s resists %s%s!", Monnam(mtmp),
expl_needs_the ? "the " : "", dispbuf);
mdam = dam / 2;
}
if (mtmp == u.ustuck)
mdam *= 2;
if (resists_cold(mtmp) && adtyp == AD_FIRE)
mdam *= 2;
else if (resists_fire(mtmp) && adtyp == AD_COLD)
mdam *= 2;
if (adtyp == AD_MAGM && raylevel >= P_EXPERT && resists_magm(mtmp))
mdam = (mdam + 1) / 2;
if (adtyp == AD_SLEE && raylevel) {
sleep_monst(mtmp, mdam, WAND_CLASS);
mdam = 0;
}
if (adtyp == AD_DISN && raylevel) {
if (nonliving(mtmp->data) ||
is_demon(mtmp->data) ||
resists_magm(mtmp) ||
raylevel == P_UNSKILLED) {
/* monster is deathresistant or raylevel==unskilled,
since monster apparently failed to resist earlier,
monster must be vulnerable to drli */
/* FIXME: make a generic losexp() for monsters */
mdam = dice(2, 6);
if (cansee(i + x - 1, j + y - 1))
pline("%s suddenly seems weaker!", Monnam(mtmp));
mtmp->mhpmax -= mdam;
if (mtmp->m_lev == 0)
mdam = mtmp->mhp;
else
mtmp->m_lev--;
} else
mdam = mtmp->mhp; /* instadeath */
}
mtmp->mhp -= mdam;
mtmp->mhp -= (idamres + idamnonres);
}
if (mtmp->mhp <= 0) {
/* KMH -- Don't blame the player for pets killing gas
spores */
if (!flags.mon_moving)
killed(mtmp);
else
monkilled(mtmp, "", (int)adtyp);
} else if (!flags.mon_moving)
setmangry(mtmp);
}
/* Do your injury last */
if (uhurt) {
if ((type >= 0 || adtyp == AD_PHYS) && /* gas spores */
flags.verbose && olet != SCROLL_CLASS)
pline("You are caught in %s%s!", expl_needs_the ? "the " : "",
dispbuf);
/* do property damage first, in case we end up leaving bones */
if (adtyp == AD_FIRE)
burn_away_slime();
if (u.uinvulnerable) {
damu = 0;
pline("You are unharmed!");
} else if (Half_physical_damage && adtyp == AD_PHYS)
damu = (damu + 1) / 2;
else if (raylevel) {
if (adtyp == AD_MAGM && Antimagic)
damu = (damu + 1) / 2;
if (adtyp == AD_SLEE) {
helpless(damu, hr_asleep, "sleeping", NULL);
damu = 0;
}
if (adtyp == AD_DISN) {
if (nonliving(youmonst.data) ||
is_demon(youmonst.data) ||
Antimagic ||
raylevel == P_UNSKILLED) {
losexp("drained by a death field",FALSE);
damu = 0;
} else {
done(DIED, "killed by a death field");
damu = 0; /* lifesaved */
}
}
}
if (adtyp == AD_FIRE) {
burnarmor(&youmonst);
set_candles_afire();
}
destroy_item(SCROLL_CLASS, (int)adtyp);
destroy_item(SPBOOK_CLASS, (int)adtyp);
destroy_item(POTION_CLASS, (int)adtyp);
destroy_item(RING_CLASS, (int)adtyp);
destroy_item(WAND_CLASS, (int)adtyp);
ugolemeffects((int)adtyp, damu);
if (uhurt == 2) {
if (Upolyd)
u.mh -= damu;
else
u.uhp -= damu;
}
if (u.uhp <= 0 || (Upolyd && u.mh <= 0)) {
int death = adtyp == AD_FIRE ? BURNING : DIED;
const char *killer;
if (olet == MON_EXPLODE) {
killer = killer_msg(death, an(str));
} else if (type >= 0 && olet != SCROLL_CLASS) {
/* check whether or not we were the source of the explosion */
if (!flags.mon_moving)
killer = msgprintf("caught %sself in %s own %s", uhim(),
uhis(), str);
else
killer = msgprintf("killed by a %s", str);
} else if (!strcmp(str, "burning oil")) {
/* This manual check hack really sucks */
killer = killer_msg(death, str);
} else {
killer = killer_msg(death, an(str));
}
/* Known BUG: BURNING suppresses corpse in bones data, but done
does not handle killer reason correctly */
if (Upolyd) {
rehumanize(death, killer);
} else {
done(death, killer);
}
}
exercise(A_STR, FALSE);
}
if (shopdamage) {
pay_for_damage(adtyp == AD_FIRE ? "burn away" : adtyp ==
AD_COLD ? "shatter" : adtyp ==
AD_DISN ? "disintegrate" : "destroy", FALSE);
}
/* explosions are noisy */
i = dam * dam;
if (i < 50)
i = 50; /* in case random damage is very small */
wake_nearto(x, y, i);
}
/* Returns an object slot mask giving all the reasons why the given
player/monster might have the given property, limited by "reasons", an object
slot mask (W_EQUIP, INTRINSIC, and ANY_PROPERTY are the most likely values
here, but you can specify slots individually if you like). */
unsigned
m_has_property(const struct monst *mon, enum youprop property,
unsigned reasons, boolean even_if_blocked)
{
unsigned rv = 0;
struct obj *otmp;
/* The general case for equipment */
rv |= mworn_extrinsic(mon, property);
if (mon == &youmonst) {
/* Intrinsics */
if (u.uintrinsic[property] & TIMEOUT)
rv |= W_MASK(os_timeout);
rv |= u.uintrinsic[property] & (INTRINSIC | I_SPECIAL);
/* Birth options */
if (property == BLINDED && flags.permablind)
rv |= W_MASK(os_birthopt);
if (property == HALLUC && flags.permahallu)
rv |= W_MASK(os_birthopt);
if (property == UNCHANGING && flags.polyinit_mnum != -1)
rv |= W_MASK(os_birthopt);
} else {
/* Monster tempraries are boolean flags.
TODO: Monsters with no eyes are not considered blind. This doesn't
make much sense. However, changing it would be a major balance
change (due to Elbereth), and so it has been left alone for now. */
if (property == BLINDED && (!mon->mcansee || mon->mblinded))
rv |= W_MASK(os_timeout);
if (property == FAST && mon->mspeed == MFAST)
rv |= (mon->permspeed == FAST ?
W_MASK(os_polyform) : W_MASK(os_outside));
if (property == INVIS && mon->perminvis && !pm_invisible(mon->data))
rv |= W_MASK(os_outside);
if (property == STUNNED && mon->mstun)
rv |= W_MASK(os_timeout);
if (property == CONFUSION && mon->mconf)
rv |= W_MASK(os_timeout);
}
/* Polyform / monster intrinsic */
/* TODO: Change the monster data code into something that doesn't require a
giant switch statement or ternary chain to get useful information from
it. We use a ternary chain here because it cuts down on repetitive code
and so is easier to read. */
if (property == FIRE_RES ? resists_fire(mon) :
property == COLD_RES ? resists_cold(mon) :
property == SLEEP_RES ? resists_sleep(mon) :
property == DISINT_RES ? resists_disint(mon) :
property == SHOCK_RES ? resists_elec(mon) :
property == POISON_RES ? resists_poison(mon) :
property == DRAIN_RES ? resists_drli(mon) :
property == SICK_RES ? mon->data->mlet == S_FUNGUS ||
mon->data == &mons[PM_GHOUL] :
property == ANTIMAGIC ? resists_magm(mon) :
property == ACID_RES ? resists_acid(mon) :
property == STONE_RES ? resists_ston(mon) :
property == STUNNED ? u.umonnum == PM_STALKER ||
mon->data->mlet == S_BAT :
property == BLINDED ? !haseyes(mon->data) :
property == HALLUC ? Upolyd && dmgtype(mon->data, AD_HALU) :
property == SEE_INVIS ? perceives(mon->data) :
property == TELEPAT ? telepathic(mon->data) :
property == INFRAVISION ? infravision(mon->data) :
/* Note: This one assumes that there's no way to permanently turn
visible when you're in stalker form (i.e. mummy wrappings only). */
property == INVIS ? pm_invisible(mon->data) :
property == TELEPORT ? can_teleport(mon->data) :
property == LEVITATION ? is_floater(mon->data) :
property == FLYING ? is_flyer(mon->data) :
property == SWIMMING ? is_swimmer(mon->data) :
property == PASSES_WALLS ? passes_walls(mon->data) :
property == REGENERATION ? regenerates(mon->data) :
property == REFLECTING ? mon->data == &mons[PM_SILVER_DRAGON] :
property == TELEPORT_CONTROL ? control_teleport(mon->data) :
property == MAGICAL_BREATHING ? amphibious(mon->data) :
0)
rv |= W_MASK(os_polyform);
if (mon == &youmonst) {
/* External circumstances */
if (property == BLINDED && u_helpless(hm_unconscious))
rv |= W_MASK(os_circumstance);
/* Riding */
if (property == FLYING && u.usteed && is_flyer(u.usteed->data))
rv |= W_MASK(os_saddle);
if (property == SWIMMING && u.usteed && is_swimmer(u.usteed->data))
rv |= W_MASK(os_saddle);
}
/* Overrides */
if (!even_if_blocked) {
if (property == BLINDED) {
for (otmp = m_minvent(mon); otmp; otmp = otmp->nobj)
if (otmp->oartifact == ART_EYES_OF_THE_OVERWORLD &&
otmp->owornmask & W_MASK(os_tool))
rv &= (unsigned)(W_MASK(os_circumstance) |
W_MASK(os_birthopt));
}
if (property == WWALKING && Is_waterlevel(m_mz(mon)))
rv &= (unsigned)(W_MASK(os_birthopt));
if (mworn_blocked(mon, property))
rv &= (unsigned)(W_MASK(os_birthopt));
}
return rv & reasons;
}