Source:NetHack 3.6.1/src/mcastu.c
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Below is the full text to mcastu.c from the source code of NetHack 3.6.1. To link to a particular line, write [[Source:NetHack 3.6.1/src/mcastu.c#line123]], for example.
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/* NetHack 3.6 mcastu.c $NHDT-Date: 1436753517 2015/07/13 02:11:57 $ $NHDT-Branch: master $:$NHDT-Revision: 1.44 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Robert Patrick Rankin, 2011. */
/* NetHack may be freely redistributed. See license for details. */The NetHack General Public License applies to screenshots, source code and other content from NetHack.
This content was modified from the original NetHack source code distribution (by splitting up NetHack content between wiki pages, and possibly further editing). See the page history for a list of who changed it, and on what dates.
#include "hack.h"
/* monster mage spells */
enum mcast_mage_spells {
MGC_PSI_BOLT = 0,
MGC_CURE_SELF,
MGC_HASTE_SELF,
MGC_STUN_YOU,
MGC_DISAPPEAR,
MGC_WEAKEN_YOU,
MGC_DESTRY_ARMR,
MGC_CURSE_ITEMS,
MGC_AGGRAVATION,
MGC_SUMMON_MONS,
MGC_CLONE_WIZ,
MGC_DEATH_TOUCH
};
/* monster cleric spells */
enum mcast_cleric_spells {
CLC_OPEN_WOUNDS = 0,
CLC_CURE_SELF,
CLC_CONFUSE_YOU,
CLC_PARALYZE,
CLC_BLIND_YOU,
CLC_INSECTS,
CLC_CURSE_ITEMS,
CLC_LIGHTNING,
CLC_FIRE_PILLAR,
CLC_GEYSER
};
STATIC_DCL void FDECL(cursetxt, (struct monst *, BOOLEAN_P));
STATIC_DCL int FDECL(choose_magic_spell, (int));
STATIC_DCL int FDECL(choose_clerical_spell, (int));
STATIC_DCL void FDECL(cast_wizard_spell, (struct monst *, int, int));
STATIC_DCL void FDECL(cast_cleric_spell, (struct monst *, int, int));
STATIC_DCL boolean FDECL(is_undirected_spell, (unsigned int, int));
STATIC_DCL boolean
FDECL(spell_would_be_useless, (struct monst *, unsigned int, int));
extern const char *const flash_types[]; /* from zap.c */
cursetxt
/* feedback when frustrated monster couldn't cast a spell */
STATIC_OVL
void
cursetxt(mtmp, undirected)
struct monst *mtmp;
boolean undirected;
{
if (canseemon(mtmp) && couldsee(mtmp->mx, mtmp->my)) {
const char *point_msg; /* spellcasting monsters are impolite */
if (undirected)
point_msg = "all around, then curses";
else if ((Invis && !perceives(mtmp->data)
&& (mtmp->mux != u.ux || mtmp->muy != u.uy))
|| is_obj_mappear(&youmonst, STRANGE_OBJECT)
|| u.uundetected)
point_msg = "and curses in your general direction";
else if (Displaced && (mtmp->mux != u.ux || mtmp->muy != u.uy))
point_msg = "and curses at your displaced image";
else
point_msg = "at you, then curses";
pline("%s points %s.", Monnam(mtmp), point_msg);
} else if ((!(moves % 4) || !rn2(4))) {
if (!Deaf)
Norep("You hear a mumbled curse.");
}
}
choose_magic_spell
/* convert a level based random selection into a specific mage spell;
inappropriate choices will be screened out by spell_would_be_useless() */
STATIC_OVL int
choose_magic_spell(spellval)
int spellval;
{
/* for 3.4.3 and earlier, val greater than 22 selected the default spell
*/
while (spellval > 24 && rn2(25))
spellval = rn2(spellval);
switch (spellval) {
case 24:
case 23:
if (Antimagic || Hallucination)
return MGC_PSI_BOLT;
/*FALLTHRU*/
case 22:
case 21:
case 20:
return MGC_DEATH_TOUCH;
case 19:
case 18:
return MGC_CLONE_WIZ;
case 17:
case 16:
case 15:
return MGC_SUMMON_MONS;
case 14:
case 13:
return MGC_AGGRAVATION;
case 12:
case 11:
case 10:
return MGC_CURSE_ITEMS;
case 9:
case 8:
return MGC_DESTRY_ARMR;
case 7:
case 6:
return MGC_WEAKEN_YOU;
case 5:
case 4:
return MGC_DISAPPEAR;
case 3:
return MGC_STUN_YOU;
case 2:
return MGC_HASTE_SELF;
case 1:
return MGC_CURE_SELF;
case 0:
default:
return MGC_PSI_BOLT;
}
}
choose_clerical_spell
/* convert a level based random selection into a specific cleric spell */
STATIC_OVL int
choose_clerical_spell(spellnum)
int spellnum;
{
/* for 3.4.3 and earlier, num greater than 13 selected the default spell
*/
while (spellnum > 15 && rn2(16))
spellnum = rn2(spellnum);
switch (spellnum) {
case 15:
case 14:
if (rn2(3))
return CLC_OPEN_WOUNDS;
/*FALLTHRU*/
case 13:
return CLC_GEYSER;
case 12:
return CLC_FIRE_PILLAR;
case 11:
return CLC_LIGHTNING;
case 10:
case 9:
return CLC_CURSE_ITEMS;
case 8:
return CLC_INSECTS;
case 7:
case 6:
return CLC_BLIND_YOU;
case 5:
case 4:
return CLC_PARALYZE;
case 3:
case 2:
return CLC_CONFUSE_YOU;
case 1:
return CLC_CURE_SELF;
case 0:
default:
return CLC_OPEN_WOUNDS;
}
}
castmu
/* return values:
* 1: successful spell
* 0: unsuccessful spell
*/
int
castmu(mtmp, mattk, thinks_it_foundyou, foundyou)
register struct monst *mtmp;
register struct attack *mattk;
boolean thinks_it_foundyou;
boolean foundyou;
{
int dmg, ml = mtmp->m_lev;
int ret;
int spellnum = 0;
/* Three cases:
* -- monster is attacking you. Search for a useful spell.
* -- monster thinks it's attacking you. Search for a useful spell,
* without checking for undirected. If the spell found is directed,
* it fails with cursetxt() and loss of mspec_used.
* -- monster isn't trying to attack. Select a spell once. Don't keep
* searching; if that spell is not useful (or if it's directed),
* return and do something else.
* Since most spells are directed, this means that a monster that isn't
* attacking casts spells only a small portion of the time that an
* attacking monster does.
*/
if ((mattk->adtyp == AD_SPEL || mattk->adtyp == AD_CLRC) && ml) {
int cnt = 40;
do {
spellnum = rn2(ml);
if (mattk->adtyp == AD_SPEL)
spellnum = choose_magic_spell(spellnum);
else
spellnum = choose_clerical_spell(spellnum);
/* not trying to attack? don't allow directed spells */
if (!thinks_it_foundyou) {
if (!is_undirected_spell(mattk->adtyp, spellnum)
|| spell_would_be_useless(mtmp, mattk->adtyp, spellnum)) {
if (foundyou)
impossible(
"spellcasting monster found you and doesn't know it?");
return 0;
}
break;
}
} while (--cnt > 0
&& spell_would_be_useless(mtmp, mattk->adtyp, spellnum));
if (cnt == 0)
return 0;
}
/* monster unable to cast spells? */
if (mtmp->mcan || mtmp->mspec_used || !ml) {
cursetxt(mtmp, is_undirected_spell(mattk->adtyp, spellnum));
return (0);
}
if (mattk->adtyp == AD_SPEL || mattk->adtyp == AD_CLRC) {
mtmp->mspec_used = 10 - mtmp->m_lev;
if (mtmp->mspec_used < 2)
mtmp->mspec_used = 2;
}
/* monster can cast spells, but is casting a directed spell at the
wrong place? If so, give a message, and return. Do this *after*
penalizing mspec_used. */
if (!foundyou && thinks_it_foundyou
&& !is_undirected_spell(mattk->adtyp, spellnum)) {
pline("%s casts a spell at %s!",
canseemon(mtmp) ? Monnam(mtmp) : "Something",
levl[mtmp->mux][mtmp->muy].typ == WATER ? "empty water"
: "thin air");
return (0);
}
nomul(0);
if (rn2(ml * 10) < (mtmp->mconf ? 100 : 20)) { /* fumbled attack */
if (canseemon(mtmp) && !Deaf)
pline_The("air crackles around %s.", mon_nam(mtmp));
return (0);
}
if (canspotmon(mtmp) || !is_undirected_spell(mattk->adtyp, spellnum)) {
pline("%s casts a spell%s!",
canspotmon(mtmp) ? Monnam(mtmp) : "Something",
is_undirected_spell(mattk->adtyp, spellnum)
? ""
: (Invisible && !perceives(mtmp->data)
&& (mtmp->mux != u.ux || mtmp->muy != u.uy))
? " at a spot near you"
: (Displaced
&& (mtmp->mux != u.ux || mtmp->muy != u.uy))
? " at your displaced image"
: " at you");
}
/*
* As these are spells, the damage is related to the level
* of the monster casting the spell.
*/
if (!foundyou) {
dmg = 0;
if (mattk->adtyp != AD_SPEL && mattk->adtyp != AD_CLRC) {
impossible(
"%s casting non-hand-to-hand version of hand-to-hand spell %d?",
Monnam(mtmp), mattk->adtyp);
return (0);
}
} else if (mattk->damd)
dmg = d((int) ((ml / 2) + mattk->damn), (int) mattk->damd);
else
dmg = d((int) ((ml / 2) + 1), 6);
if (Half_spell_damage)
dmg = (dmg + 1) / 2;
ret = 1;
switch (mattk->adtyp) {
case AD_FIRE:
pline("You're enveloped in flames.");
if (Fire_resistance) {
shieldeff(u.ux, u.uy);
pline("But you resist the effects.");
dmg = 0;
}
burn_away_slime();
break;
case AD_COLD:
pline("You're covered in frost.");
if (Cold_resistance) {
shieldeff(u.ux, u.uy);
pline("But you resist the effects.");
dmg = 0;
}
break;
case AD_MAGM:
You("are hit by a shower of missiles!");
if (Antimagic) {
shieldeff(u.ux, u.uy);
pline_The("missiles bounce off!");
dmg = 0;
} else
dmg = d((int) mtmp->m_lev / 2 + 1, 6);
break;
case AD_SPEL: /* wizard spell */
case AD_CLRC: /* clerical spell */
{
if (mattk->adtyp == AD_SPEL)
cast_wizard_spell(mtmp, dmg, spellnum);
else
cast_cleric_spell(mtmp, dmg, spellnum);
dmg = 0; /* done by the spell casting functions */
break;
}
}
if (dmg)
mdamageu(mtmp, dmg);
return (ret);
}
cast_wizard_spell
/* monster wizard and cleric spellcasting functions */
/*
If dmg is zero, then the monster is not casting at you.
If the monster is intentionally not casting at you, we have previously
called spell_would_be_useless() and spellnum should always be a valid
undirected spell.
If you modify either of these, be sure to change is_undirected_spell()
and spell_would_be_useless().
*/
STATIC_OVL
void
cast_wizard_spell(mtmp, dmg, spellnum)
struct monst *mtmp;
int dmg;
int spellnum;
{
if (dmg == 0 && !is_undirected_spell(AD_SPEL, spellnum)) {
impossible("cast directed wizard spell (%d) with dmg=0?", spellnum);
return;
}
switch (spellnum) {
case MGC_DEATH_TOUCH:
pline("Oh no, %s's using the touch of death!", mhe(mtmp));
if (nonliving(youmonst.data) || is_demon(youmonst.data)) {
You("seem no deader than before.");
} else if (!Antimagic && rn2(mtmp->m_lev) > 12) {
if (Hallucination) {
You("have an out of body experience.");
} else {
killer.format = KILLED_BY_AN;
Strcpy(killer.name, "touch of death");
done(DIED);
}
} else {
if (Antimagic)
shieldeff(u.ux, u.uy);
pline("Lucky for you, it didn't work!");
}
dmg = 0;
break;
case MGC_CLONE_WIZ:
if (mtmp->iswiz && context.no_of_wizards == 1) {
pline("Double Trouble...");
clonewiz();
dmg = 0;
} else
impossible("bad wizard cloning?");
break;
case MGC_SUMMON_MONS: {
int count;
count = nasty(mtmp); /* summon something nasty */
if (mtmp->iswiz)
verbalize("Destroy the thief, my pet%s!", plur(count));
else {
const char *mappear =
(count == 1) ? "A monster appears" : "Monsters appear";
/* messages not quite right if plural monsters created but
only a single monster is seen */
if (Invisible && !perceives(mtmp->data)
&& (mtmp->mux != u.ux || mtmp->muy != u.uy))
pline("%s around a spot near you!", mappear);
else if (Displaced && (mtmp->mux != u.ux || mtmp->muy != u.uy))
pline("%s around your displaced image!", mappear);
else
pline("%s from nowhere!", mappear);
}
dmg = 0;
break;
}
case MGC_AGGRAVATION:
You_feel("that monsters are aware of your presence.");
aggravate();
dmg = 0;
break;
case MGC_CURSE_ITEMS:
You_feel("as if you need some help.");
rndcurse();
dmg = 0;
break;
case MGC_DESTRY_ARMR:
if (Antimagic) {
shieldeff(u.ux, u.uy);
pline("A field of force surrounds you!");
} else if (!destroy_arm(some_armor(&youmonst))) {
Your("skin itches.");
}
dmg = 0;
break;
case MGC_WEAKEN_YOU: /* drain strength */
if (Antimagic) {
shieldeff(u.ux, u.uy);
You_feel("momentarily weakened.");
} else {
You("suddenly feel weaker!");
dmg = mtmp->m_lev - 6;
if (Half_spell_damage)
dmg = (dmg + 1) / 2;
losestr(rnd(dmg));
if (u.uhp < 1)
done_in_by(mtmp, DIED);
}
dmg = 0;
break;
case MGC_DISAPPEAR: /* makes self invisible */
if (!mtmp->minvis && !mtmp->invis_blkd) {
if (canseemon(mtmp))
pline("%s suddenly %s!", Monnam(mtmp),
!See_invisible ? "disappears" : "becomes transparent");
mon_set_minvis(mtmp);
if (cansee(mtmp->mx, mtmp->my) && !canspotmon(mtmp))
map_invisible(mtmp->mx, mtmp->my);
dmg = 0;
} else
impossible("no reason for monster to cast disappear spell?");
break;
case MGC_STUN_YOU:
if (Antimagic || Free_action) {
shieldeff(u.ux, u.uy);
if (!Stunned)
You_feel("momentarily disoriented.");
make_stunned(1L, FALSE);
} else {
You(Stunned ? "struggle to keep your balance." : "reel...");
dmg = d(ACURR(A_DEX) < 12 ? 6 : 4, 4);
if (Half_spell_damage)
dmg = (dmg + 1) / 2;
make_stunned((HStun & TIMEOUT) + (long) dmg, FALSE);
}
dmg = 0;
break;
case MGC_HASTE_SELF:
mon_adjust_speed(mtmp, 1, (struct obj *) 0);
dmg = 0;
break;
case MGC_CURE_SELF:
if (mtmp->mhp < mtmp->mhpmax) {
if (canseemon(mtmp))
pline("%s looks better.", Monnam(mtmp));
/* note: player healing does 6d4; this used to do 1d8 */
if ((mtmp->mhp += d(3, 6)) > mtmp->mhpmax)
mtmp->mhp = mtmp->mhpmax;
dmg = 0;
}
break;
case MGC_PSI_BOLT:
/* prior to 3.4.0 Antimagic was setting the damage to 1--this
made the spell virtually harmless to players with magic res. */
if (Antimagic) {
shieldeff(u.ux, u.uy);
dmg = (dmg + 1) / 2;
}
if (dmg <= 5)
You("get a slight %sache.", body_part(HEAD));
else if (dmg <= 10)
Your("brain is on fire!");
else if (dmg <= 20)
Your("%s suddenly aches painfully!", body_part(HEAD));
else
Your("%s suddenly aches very painfully!", body_part(HEAD));
break;
default:
impossible("mcastu: invalid magic spell (%d)", spellnum);
dmg = 0;
break;
}
if (dmg)
mdamageu(mtmp, dmg);
}
cast_cleric_spell
STATIC_OVL
void
cast_cleric_spell(mtmp, dmg, spellnum)
struct monst *mtmp;
int dmg;
int spellnum;
{
if (dmg == 0 && !is_undirected_spell(AD_CLRC, spellnum)) {
impossible("cast directed cleric spell (%d) with dmg=0?", spellnum);
return;
}
switch (spellnum) {
case CLC_GEYSER:
/* this is physical damage (force not heat),
* not magical damage or fire damage
*/
pline("A sudden geyser slams into you from nowhere!");
dmg = d(8, 6);
if (Half_physical_damage)
dmg = (dmg + 1) / 2;
break;
case CLC_FIRE_PILLAR:
pline("A pillar of fire strikes all around you!");
if (Fire_resistance) {
shieldeff(u.ux, u.uy);
dmg = 0;
} else
dmg = d(8, 6);
if (Half_spell_damage)
dmg = (dmg + 1) / 2;
burn_away_slime();
(void) burnarmor(&youmonst);
destroy_item(SCROLL_CLASS, AD_FIRE);
destroy_item(POTION_CLASS, AD_FIRE);
destroy_item(SPBOOK_CLASS, AD_FIRE);
(void) burn_floor_objects(u.ux, u.uy, TRUE, FALSE);
break;
case CLC_LIGHTNING: {
boolean reflects;
pline("A bolt of lightning strikes down at you from above!");
reflects = ureflects("It bounces off your %s%s.", "");
if (reflects || Shock_resistance) {
shieldeff(u.ux, u.uy);
dmg = 0;
if (reflects)
break;
} else
dmg = d(8, 6);
if (Half_spell_damage)
dmg = (dmg + 1) / 2;
destroy_item(WAND_CLASS, AD_ELEC);
destroy_item(RING_CLASS, AD_ELEC);
(void) flashburn((long) rnd(100));
break;
}
case CLC_CURSE_ITEMS:
You_feel("as if you need some help.");
rndcurse();
dmg = 0;
break;
case CLC_INSECTS: {
/* Try for insects, and if there are none
left, go for (sticks to) snakes. -3. */
struct permonst *pm = mkclass(S_ANT, 0);
struct monst *mtmp2 = (struct monst *) 0;
char let = (pm ? S_ANT : S_SNAKE);
boolean success = FALSE, seecaster;
int i, quan, oldseen, newseen;
coord bypos;
const char *fmt;
oldseen = monster_census(TRUE);
quan = (mtmp->m_lev < 2) ? 1 : rnd((int) mtmp->m_lev / 2);
if (quan < 3)
quan = 3;
for (i = 0; i <= quan; i++) {
if (!enexto(&bypos, mtmp->mux, mtmp->muy, mtmp->data))
break;
if ((pm = mkclass(let, 0)) != 0
&& (mtmp2 = makemon(pm, bypos.x, bypos.y, MM_ANGRY)) != 0) {
success = TRUE;
mtmp2->msleeping = mtmp2->mpeaceful = mtmp2->mtame = 0;
set_malign(mtmp2);
}
}
newseen = monster_census(TRUE);
/* not canspotmon(), which includes unseen things sensed via warning
*/
seecaster = canseemon(mtmp) || tp_sensemon(mtmp) || Detect_monsters;
fmt = 0;
if (!seecaster) {
char *arg; /* [not const: upstart(N==1 ? an() : makeplural())] */
const char *what = (let == S_SNAKE) ? "snake" : "insect";
if (newseen <= oldseen || Unaware) {
/* unseen caster fails or summons unseen critters,
or unconscious hero ("You dream that you hear...") */
You_hear("someone summoning %s.", makeplural(what));
} else {
/* unseen caster summoned seen critter(s) */
arg = (newseen == oldseen + 1) ? an(what) : makeplural(what);
if (!Deaf)
You_hear("someone summoning something, and %s %s.", arg,
vtense(arg, "appear"));
else
pline("%s %s.", upstart(arg), vtense(arg, "appear"));
}
/* seen caster, possibly producing unseen--or just one--critters;
hero is told what the caster is doing and doesn't necessarily
observe complete accuracy of that caster's results (in other
words, no need to fuss with visibility or singularization;
player is told what's happening even if hero is unconscious) */
} else if (!success)
fmt = "%s casts at a clump of sticks, but nothing happens.";
else if (let == S_SNAKE)
fmt = "%s transforms a clump of sticks into snakes!";
else if (Invisible && !perceives(mtmp->data)
&& (mtmp->mux != u.ux || mtmp->muy != u.uy))
fmt = "%s summons insects around a spot near you!";
else if (Displaced && (mtmp->mux != u.ux || mtmp->muy != u.uy))
fmt = "%s summons insects around your displaced image!";
else
fmt = "%s summons insects!";
if (fmt)
pline(fmt, Monnam(mtmp));
dmg = 0;
break;
}
case CLC_BLIND_YOU:
/* note: resists_blnd() doesn't apply here */
if (!Blinded) {
int num_eyes = eyecount(youmonst.data);
pline("Scales cover your %s!", (num_eyes == 1)
? body_part(EYE)
: makeplural(body_part(EYE)));
make_blinded(Half_spell_damage ? 100L : 200L, FALSE);
if (!Blind)
Your1(vision_clears);
dmg = 0;
} else
impossible("no reason for monster to cast blindness spell?");
break;
case CLC_PARALYZE:
if (Antimagic || Free_action) {
shieldeff(u.ux, u.uy);
if (multi >= 0)
You("stiffen briefly.");
nomul(-1);
multi_reason = "paralyzed by a monster";
} else {
if (multi >= 0)
You("are frozen in place!");
dmg = 4 + (int) mtmp->m_lev;
if (Half_spell_damage)
dmg = (dmg + 1) / 2;
nomul(-dmg);
multi_reason = "paralyzed by a monster";
}
nomovemsg = 0;
dmg = 0;
break;
case CLC_CONFUSE_YOU:
if (Antimagic) {
shieldeff(u.ux, u.uy);
You_feel("momentarily dizzy.");
} else {
boolean oldprop = !!Confusion;
dmg = (int) mtmp->m_lev;
if (Half_spell_damage)
dmg = (dmg + 1) / 2;
make_confused(HConfusion + dmg, TRUE);
if (Hallucination)
You_feel("%s!", oldprop ? "trippier" : "trippy");
else
You_feel("%sconfused!", oldprop ? "more " : "");
}
dmg = 0;
break;
case CLC_CURE_SELF:
if (mtmp->mhp < mtmp->mhpmax) {
if (canseemon(mtmp))
pline("%s looks better.", Monnam(mtmp));
/* note: player healing does 6d4; this used to do 1d8 */
if ((mtmp->mhp += d(3, 6)) > mtmp->mhpmax)
mtmp->mhp = mtmp->mhpmax;
dmg = 0;
}
break;
case CLC_OPEN_WOUNDS:
if (Antimagic) {
shieldeff(u.ux, u.uy);
dmg = (dmg + 1) / 2;
}
if (dmg <= 5)
Your("skin itches badly for a moment.");
else if (dmg <= 10)
pline("Wounds appear on your body!");
else if (dmg <= 20)
pline("Severe wounds appear on your body!");
else
Your("body is covered with painful wounds!");
break;
default:
impossible("mcastu: invalid clerical spell (%d)", spellnum);
dmg = 0;
break;
}
if (dmg)
mdamageu(mtmp, dmg);
}
is_undirected_spell
STATIC_DCL
boolean
is_undirected_spell(adtyp, spellnum)
unsigned int adtyp;
int spellnum;
{
if (adtyp == AD_SPEL) {
switch (spellnum) {
case MGC_CLONE_WIZ:
case MGC_SUMMON_MONS:
case MGC_AGGRAVATION:
case MGC_DISAPPEAR:
case MGC_HASTE_SELF:
case MGC_CURE_SELF:
return TRUE;
default:
break;
}
} else if (adtyp == AD_CLRC) {
switch (spellnum) {
case CLC_INSECTS:
case CLC_CURE_SELF:
return TRUE;
default:
break;
}
}
return FALSE;
}
spell_would_be_useless
/* Some spells are useless under some circumstances. */
STATIC_DCL
boolean
spell_would_be_useless(mtmp, adtyp, spellnum)
struct monst *mtmp;
unsigned int adtyp;
int spellnum;
{
/* Some spells don't require the player to really be there and can be cast
* by the monster when you're invisible, yet still shouldn't be cast when
* the monster doesn't even think you're there.
* This check isn't quite right because it always uses your real position.
* We really want something like "if the monster could see mux, muy".
*/
boolean mcouldseeu = couldsee(mtmp->mx, mtmp->my);
if (adtyp == AD_SPEL) {
/* aggravate monsters, etc. won't be cast by peaceful monsters */
if (mtmp->mpeaceful
&& (spellnum == MGC_AGGRAVATION || spellnum == MGC_SUMMON_MONS
|| spellnum == MGC_CLONE_WIZ))
return TRUE;
/* haste self when already fast */
if (mtmp->permspeed == MFAST && spellnum == MGC_HASTE_SELF)
return TRUE;
/* invisibility when already invisible */
if ((mtmp->minvis || mtmp->invis_blkd) && spellnum == MGC_DISAPPEAR)
return TRUE;
/* peaceful monster won't cast invisibility if you can't see
invisible,
same as when monsters drink potions of invisibility. This doesn't
really make a lot of sense, but lets the player avoid hitting
peaceful monsters by mistake */
if (mtmp->mpeaceful && !See_invisible && spellnum == MGC_DISAPPEAR)
return TRUE;
/* healing when already healed */
if (mtmp->mhp == mtmp->mhpmax && spellnum == MGC_CURE_SELF)
return TRUE;
/* don't summon monsters if it doesn't think you're around */
if (!mcouldseeu && (spellnum == MGC_SUMMON_MONS
|| (!mtmp->iswiz && spellnum == MGC_CLONE_WIZ)))
return TRUE;
if ((!mtmp->iswiz || context.no_of_wizards > 1)
&& spellnum == MGC_CLONE_WIZ)
return TRUE;
/* aggravation (global wakeup) when everyone is already active */
if (spellnum == MGC_AGGRAVATION) {
/* if nothing needs to be awakened then this spell is useless
but caster might not realize that [chance to pick it then
must be very small otherwise caller's many retry attempts
will eventually end up picking it too often] */
if (!has_aggravatables(mtmp))
return rn2(100) ? TRUE : FALSE;
}
} else if (adtyp == AD_CLRC) {
/* summon insects/sticks to snakes won't be cast by peaceful monsters
*/
if (mtmp->mpeaceful && spellnum == CLC_INSECTS)
return TRUE;
/* healing when already healed */
if (mtmp->mhp == mtmp->mhpmax && spellnum == CLC_CURE_SELF)
return TRUE;
/* don't summon insects if it doesn't think you're around */
if (!mcouldseeu && spellnum == CLC_INSECTS)
return TRUE;
/* blindness spell on blinded player */
if (Blinded && spellnum == CLC_BLIND_YOU)
return TRUE;
}
return FALSE;
}
/* convert 1..10 to 0..9; add 10 for second group (spell casting) */
#define ad_to_typ(k) (10 + (int) k - 1)
buzzmu
/* monster uses spell (ranged) */
int
buzzmu(mtmp, mattk)
register struct monst *mtmp;
register struct attack *mattk;
{
/* don't print constant stream of curse messages for 'normal'
spellcasting monsters at range */
if (mattk->adtyp > AD_SPC2)
return (0);
if (mtmp->mcan) {
cursetxt(mtmp, FALSE);
return (0);
}
if (lined_up(mtmp) && rn2(3)) {
nomul(0);
if (mattk->adtyp && (mattk->adtyp < 11)) { /* no cf unsigned >0 */
if (canseemon(mtmp))
pline("%s zaps you with a %s!", Monnam(mtmp),
flash_types[ad_to_typ(mattk->adtyp)]);
buzz(-ad_to_typ(mattk->adtyp), (int) mattk->damn, mtmp->mx,
mtmp->my, sgn(tbx), sgn(tby));
} else
impossible("Monster spell %d cast", mattk->adtyp - 1);
}
return (1);
}
/*mcastu.c*/