/
attack.cc
2040 lines (1767 loc) · 60.4 KB
/
attack.cc
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/*
* File: attack.cc
* Summary: Methods of the attack class, generalized functions which may
* be overloaded by inheriting classes.
* Written by: Robert Burnham
*/
#include "AppHdr.h"
#include "attack.h"
#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include "art-enum.h"
#include "delay.h"
#include "english.h"
#include "env.h"
#include "exercise.h"
#include "fight.h"
#include "fineff.h"
#include "godconduct.h"
#include "godpassive.h" // passive_t::no_haste
#include "itemname.h"
#include "itemprop.h"
#include "message.h"
#include "misc.h"
#include "mon-behv.h"
#include "mon-clone.h"
#include "mon-death.h"
#include "mon-poly.h"
#include "religion.h"
#include "spl-miscast.h"
#include "state.h"
#include "stepdown.h"
#include "stringutil.h"
#include "transform.h"
#include "xom.h"
/*
**************************************************
* BEGIN PUBLIC FUNCTIONS *
**************************************************
*/
attack::attack(actor *attk, actor *defn, actor *blame)
: attacker(attk), defender(defn), responsible(blame ? blame : attk),
attack_occurred(false), cancel_attack(false), did_hit(false),
needs_message(false), attacker_visible(false), defender_visible(false),
perceived_attack(false), obvious_effect(false), to_hit(0),
damage_done(0), special_damage(0), aux_damage(0), min_delay(0),
final_attack_delay(0), special_damage_flavour(BEAM_NONE),
stab_attempt(false), stab_bonus(0), ev_margin(0), weapon(nullptr),
damage_brand(SPWPN_NORMAL), wpn_skill(SK_UNARMED_COMBAT),
shield(nullptr), art_props(0), unrand_entry(nullptr),
attacker_to_hit_penalty(0), attack_verb("bug"), verb_degree(),
no_damage_message(), special_damage_message(), aux_attack(), aux_verb(),
attacker_armour_tohit_penalty(0), attacker_shield_tohit_penalty(0),
defender_shield(nullptr), miscast_level(-1), miscast_type(SPTYP_NONE),
miscast_target(nullptr), fake_chaos_attack(false), simu(false),
aux_source(""), kill_type(KILLED_BY_MONSTER)
{
// No effective code should execute, we'll call init_attack again from
// the child class, since initializing an attack will vary based the within
// type of attack actually being made (melee, ranged, etc.)
}
bool attack::handle_phase_attempted()
{
return true;
}
bool attack::handle_phase_blocked()
{
damage_done = 0;
return true;
}
bool attack::handle_phase_damaged()
{
// We have to check in_bounds() because removed kraken tentacles are
// temporarily returned to existence (without a position) when they
// react to damage.
if (defender->can_bleed()
&& !defender->is_summoned()
&& !defender->submerged()
&& in_bounds(defender->pos())
&& !simu)
{
int blood = damage_done;
if (blood > defender->stat_hp())
blood = defender->stat_hp();
if (blood)
blood_fineff::schedule(defender, defender->pos(), blood);
}
announce_hit();
// Inflict stored damage
damage_done = inflict_damage(damage_done);
// TODO: Unify these, added here so we can get rid of player_attack
if (attacker->is_player())
{
if (damage_done)
player_exercise_combat_skills();
}
else
{
if (!mons_attack_effects())
return false;
}
// It's okay if a monster took lethal damage, but we should stop
// the combat if it was already reset (e.g. a spectral weapon that
// took damage and then noticed that its caster is gone).
return defender->is_player() || !invalid_monster(defender->as_monster());
}
bool attack::handle_phase_killed()
{
monster * const mon = defender->as_monster();
if (!invalid_monster(mon))
monster_die(mon, attacker);
return true;
}
bool attack::handle_phase_end()
{
// This may invalidate both the attacker and defender.
fire_final_effects();
return true;
}
/**
* Calculate the to-hit for an attacker
*
* @param random If false, calculate average to-hit deterministically.
*/
int attack::calc_to_hit(bool random)
{
int mhit = attacker->is_player() ?
15 + (calc_stat_to_hit_base() / 2)
: calc_mon_to_hit_base();
#ifdef DEBUG_DIAGNOSTICS
const int base_hit = mhit;
#endif
// This if statement is temporary, it should be removed when the
// implementation of a more universal (and elegant) to-hit calculation
// is designed. The actual code is copied from the old mons_to_hit and
// player_to_hit methods.
if (attacker->is_player())
{
// fighting contribution
mhit += maybe_random_div(you.skill(SK_FIGHTING, 100), 100, random);
// weapon skill contribution
if (using_weapon())
{
if (wpn_skill != SK_FIGHTING)
{
if (you.skill(wpn_skill) < 1 && player_in_a_dangerous_place())
xom_is_stimulated(10); // Xom thinks that is mildly amusing.
mhit += maybe_random_div(you.skill(wpn_skill, 100), 100,
random);
}
}
else if (you.form_uses_xl())
mhit += maybe_random_div(you.experience_level * 100, 100, random);
else
{
// Claws give a slight bonus to accuracy when active
mhit += (player_mutation_level(MUT_CLAWS) > 0
&& wpn_skill == SK_UNARMED_COMBAT) ? 4 : 2;
mhit += maybe_random_div(you.skill(wpn_skill, 100), 100,
random);
}
// weapon bonus contribution
if (using_weapon())
{
if (weapon->base_type == OBJ_WEAPONS)
{
mhit += weapon->plus;
mhit += property(*weapon, PWPN_HIT);
}
else if (weapon->base_type == OBJ_STAVES)
mhit += property(*weapon, PWPN_HIT);
else if (weapon->base_type == OBJ_RODS)
{
mhit += property(*weapon, PWPN_HIT);
mhit += weapon->special;
}
}
// slaying bonus
mhit += slaying_bonus(wpn_skill == SK_THROWING
|| (weapon && is_range_weapon(*weapon)
&& using_weapon()));
// horror penalty
if (you.duration[DUR_HORROR])
mhit -= you.props[HORROR_PENALTY_KEY].get_int();
// hunger penalty
if (you.hunger_state <= HS_STARVING)
mhit -= 3;
// armour penalty
mhit -= (attacker_armour_tohit_penalty + attacker_shield_tohit_penalty);
// mutation
if (player_mutation_level(MUT_EYEBALLS))
mhit += 2 * player_mutation_level(MUT_EYEBALLS) + 1;
// hit roll
mhit = maybe_random2(mhit, random);
}
else // Monster to-hit.
{
if (using_weapon())
mhit += weapon->plus + property(*weapon, PWPN_HIT);
const int jewellery = attacker->as_monster()->inv[MSLOT_JEWELLERY];
if (jewellery != NON_ITEM
&& mitm[jewellery].is_type(OBJ_JEWELLERY, RING_SLAYING))
{
mhit += mitm[jewellery].plus;
}
mhit += attacker->scan_artefacts(ARTP_SLAYING);
if (using_weapon() && weapon->base_type == OBJ_RODS)
mhit += weapon->special;
}
// Penalties for both players and monsters:
mhit -= 5 * attacker->inaccuracy();
if (attacker->confused())
mhit -= 5;
if (using_weapon() && is_unrandom_artefact(*weapon, UNRAND_WOE))
return AUTOMATIC_HIT;
// If no defender, we're calculating to-hit for debug-display
// purposes, so don't drop down to defender code below
if (defender == nullptr)
return mhit;
if (!defender->visible_to(attacker))
if (attacker->is_player())
mhit -= 6;
else
mhit = mhit * 65 / 100;
else
{
// This can only help if you're visible!
const int how_transparent = player_mutation_level(MUT_TRANSLUCENT_SKIN);
if (defender->is_player() && how_transparent)
mhit -= 2 * how_transparent;
if (defender->backlit(false))
mhit += 2 + random2(8);
else if (!attacker->nightvision()
&& defender->umbra())
mhit -= 2 + random2(4);
}
// Don't delay doing this roll until test_hit().
if (!attacker->is_player())
mhit = random2(mhit + 1);
dprf(DIAG_COMBAT, "%s: Base to-hit: %d, Final to-hit: %d",
attacker->name(DESC_PLAIN).c_str(),
base_hit, mhit);
return mhit;
}
/* Returns an actor's name
*
* Takes into account actor visibility/invisibility and the type of description
* to be used (capitalization, possessiveness, etc.)
*/
string attack::actor_name(const actor *a, description_level_type desc,
bool actor_visible)
{
return actor_visible ? a->name(desc) : anon_name(desc);
}
/* Returns an actor's pronoun
*
* Takes into account actor visibility
*/
string attack::actor_pronoun(const actor *a, pronoun_type pron,
bool actor_visible)
{
return actor_visible ? a->pronoun(pron) : anon_pronoun(pron);
}
/* Returns an anonymous actor's name
*
* Given the actor visible or invisible, returns the
* appropriate possessive pronoun.
*/
string attack::anon_name(description_level_type desc)
{
switch (desc)
{
case DESC_NONE:
return "";
case DESC_YOUR:
case DESC_ITS:
return "its";
case DESC_THE:
case DESC_A:
case DESC_PLAIN:
default:
return "something";
}
}
/* Returns an anonymous actor's pronoun
*
* Given invisibility (whether out of LOS or just invisible), returns the
* appropriate possessive, inflexive, capitalised pronoun.
*/
string attack::anon_pronoun(pronoun_type pron)
{
return decline_pronoun(GENDER_NEUTER, pron);
}
/* Initializes an attack, setting up base variables and values
*
* Does not make any changes to any actors, items, or the environment,
* in case the attack is cancelled or otherwise fails. Only initializations
* that are universal to all types of attacks should go into this method,
* any initialization properties that are specific to one attack or another
* should go into their respective init_attack.
*
* Although this method will get overloaded by the derived class, we are
* calling it from attack::attack(), before the overloading has taken place.
*/
void attack::init_attack(skill_type unarmed_skill, int attack_number)
{
weapon = attacker->weapon(attack_number);
wpn_skill = weapon ? item_attack_skill(*weapon) : unarmed_skill;
if (attacker->is_player() && you.form_uses_xl())
wpn_skill = SK_FIGHTING; // for stabbing, mostly
attacker_armour_tohit_penalty =
div_rand_round(attacker->armour_tohit_penalty(true, 20), 20);
attacker_shield_tohit_penalty =
div_rand_round(attacker->shield_tohit_penalty(true, 20), 20);
to_hit = calc_to_hit(true);
shield = attacker->shield();
defender_shield = defender ? defender->shield() : defender_shield;
if (weapon && weapon->base_type == OBJ_WEAPONS && is_artefact(*weapon))
{
artefact_properties(*weapon, art_props);
if (is_unrandom_artefact(*weapon))
unrand_entry = get_unrand_entry(weapon->special);
}
attacker_visible = attacker->observable();
defender_visible = defender && defender->observable();
needs_message = (attacker_visible || defender_visible);
if (attacker->is_monster())
{
mon_attack_def mon_attk = mons_attack_spec(attacker->as_monster(),
attack_number);
attk_type = mon_attk.type;
attk_flavour = mon_attk.flavour;
// Don't scale damage for YOU_FAULTLESS etc.
if (attacker->get_experience_level() == 0)
attk_damage = mon_attk.damage;
else
{
attk_damage = div_rand_round(mon_attk.damage
* attacker->get_hit_dice(),
attacker->get_experience_level());
}
if (attk_type == AT_WEAP_ONLY)
{
int weap = attacker->as_monster()->inv[MSLOT_WEAPON];
if (weap == NON_ITEM || is_range_weapon(mitm[weap]))
attk_type = AT_NONE;
else
attk_type = AT_HIT;
}
else if (attk_type == AT_TRUNK_SLAP && attacker->type == MONS_SKELETON)
{
// Elephant trunks have no bones inside.
attk_type = AT_NONE;
}
}
else
{
attk_type = AT_HIT;
attk_flavour = AF_PLAIN;
}
}
void attack::alert_defender()
{
// Allow monster attacks to draw the ire of the defender. Player
// attacks are handled elsewhere.
if (perceived_attack
&& defender->is_monster()
&& attacker->is_monster()
&& attacker->alive() && defender->alive()
&& (defender->as_monster()->foe == MHITNOT || one_chance_in(3)))
{
behaviour_event(defender->as_monster(), ME_WHACK, attacker);
}
// If an enemy attacked a friend, set the pet target if it isn't set
// already, but not if sanctuary is in effect (pet target must be
// set explicitly by the player during sanctuary).
if (perceived_attack && attacker->alive()
&& (defender->is_player() || defender->as_monster()->friendly())
&& !attacker->is_player()
&& !crawl_state.game_is_arena()
&& !attacker->as_monster()->wont_attack())
{
if (defender->is_player())
interrupt_activity(AI_MONSTER_ATTACKS, attacker->as_monster());
if (you.pet_target == MHITNOT && env.sanctuary_time <= 0)
you.pet_target = attacker->mindex();
}
}
bool attack::distortion_affects_defender()
{
//jmf: blink frogs *like* distortion
// I think could be amended to let blink frogs "grow" like
// jellies do {dlb}
if (defender->is_monster()
&& mons_genus(defender->type) == MONS_BLINK_FROG)
{
if (one_chance_in(5))
{
if (defender_visible)
{
special_damage_message =
make_stringf("%s %s in the distortional energy.",
defender_name(false).c_str(),
defender->conj_verb("bask").c_str());
}
defender->heal(1 + random2avg(7, 2), true); // heh heh
}
return false;
}
enum disto_effect
{
SMALL_DMG,
BIG_DMG,
BANISH,
BLINK,
TELE_INSTANT,
TELE_DELAYED,
NONE
};
const disto_effect choice = random_choose_weighted(33, SMALL_DMG,
22, BIG_DMG,
5, BANISH,
15, BLINK,
10, TELE_INSTANT,
10, TELE_DELAYED,
5, NONE,
0);
if (simu && !(choice == SMALL_DMG || choice == BIG_DMG))
return false;
switch (choice)
{
case SMALL_DMG:
special_damage_message = make_stringf("Space bends around %s.",
defender_name(false).c_str());
special_damage += 1 + random2avg(7, 2);
break;
case BIG_DMG:
special_damage_message = make_stringf("Space warps horribly around %s!",
defender_name(false).c_str());
special_damage += 3 + random2avg(24, 2);
break;
case BLINK:
if (defender_visible)
obvious_effect = true;
if (!defender->no_tele(true, false))
blink_fineff::schedule(defender);
break;
case BANISH:
if (!player_in_branch(BRANCH_ABYSS))
{
if (defender_visible)
obvious_effect = true;
defender->banish(attacker, attacker->name(DESC_PLAIN, true),
attacker->get_experience_level());
}
return true;
case TELE_INSTANT:
case TELE_DELAYED:
if (defender_visible)
obvious_effect = true;
if (crawl_state.game_is_sprint() && defender->is_player()
|| defender->no_tele())
{
if (defender->is_player())
canned_msg(MSG_STRANGE_STASIS);
return false;
}
if (choice == TELE_INSTANT)
distortion_tele_fineff::schedule(defender);
else
defender->teleport();
break;
case NONE:
// Do nothing
break;
}
return false;
}
void attack::antimagic_affects_defender(int pow)
{
obvious_effect =
enchant_actor_with_flavour(defender, nullptr, BEAM_DRAIN_MAGIC, pow);
}
void attack::pain_affects_defender()
{
if (defender->res_negative_energy())
return;
if (!one_chance_in(attacker->skill_rdiv(SK_NECROMANCY) + 1))
{
if (defender_visible)
{
special_damage_message =
make_stringf("%s %s in agony.",
defender->name(DESC_THE).c_str(),
defender->conj_verb("writhe").c_str());
}
special_damage += random2(1 + attacker->skill_rdiv(SK_NECROMANCY));
}
attacker->god_conduct(DID_NECROMANCY, 4);
}
// TODO: Move this somewhere sane
enum chaos_type
{
CHAOS_CLONE,
CHAOS_POLY,
CHAOS_POLY_UP,
CHAOS_MAKE_SHIFTER,
CHAOS_MISCAST,
CHAOS_RAGE,
CHAOS_HEAL,
CHAOS_HASTE,
CHAOS_INVIS,
CHAOS_SLOW,
CHAOS_PARALYSIS,
CHAOS_PETRIFY,
NUM_CHAOS_TYPES
};
void attack::chaos_affects_defender()
{
monster * const mon = defender->as_monster();
const bool firewood = mon && mons_is_firewood(mon);
const bool immune = mon && mons_immune_magic(mon);
const bool is_natural = mon && defender->holiness() == MH_NATURAL;
const bool is_shifter = mon && mon->is_shapeshifter();
const bool can_clone = mon && mons_clonable(mon, true);
const bool can_poly = is_shifter || (defender->can_safely_mutate()
&& !immune && !firewood);
const bool can_rage = defender->can_go_berserk();
const bool can_slow = !firewood && !(mon && mon->is_stationary());
const bool can_petrify = mon && !defender->res_petrify();
int clone_chance = can_clone ? 1 : 0;
int poly_chance = can_poly ? 1 : 0;
int poly_up_chance = can_poly && mon ? 1 : 0;
int shifter_chance = can_poly && mon && is_natural
&& !is_shifter ? 1 : 0;
int rage_chance = can_rage ? 5 : 0;
int speed_chance = can_slow ? 10 : 0;
int para_chance = !firewood ? 5 : 0;
int petrify_chance = can_slow && can_petrify ? 10 : 0;
// NOTE: Must appear in exact same order as in chaos_type enumeration.
int probs[NUM_CHAOS_TYPES] =
{
clone_chance, // CHAOS_CLONE
poly_chance, // CHAOS_POLY
poly_up_chance, // CHAOS_POLY_UP
shifter_chance, // CHAOS_MAKE_SHIFTER
20, // CHAOS_MISCAST
rage_chance, // CHAOS_RAGE
10, // CHAOS_HEAL
speed_chance, // CHAOS_HASTE
10, // CHAOS_INVIS
speed_chance, // CHAOS_SLOW
para_chance, // CHAOS_PARALYSIS
petrify_chance, // CHAOS_PETRIFY
};
bolt beam;
beam.flavour = BEAM_NONE;
int choice = choose_random_weighted(probs, probs + NUM_CHAOS_TYPES);
#ifdef NOTE_DEBUG_CHAOS_EFFECTS
string chaos_effect = "CHAOS effect: ";
switch (choice)
{
case CHAOS_CLONE: chaos_effect += "clone"; break;
case CHAOS_POLY: chaos_effect += "polymorph"; break;
case CHAOS_POLY_UP: chaos_effect += "polymorph PPT_MORE"; break;
case CHAOS_MAKE_SHIFTER: chaos_effect += "shifter"; break;
case CHAOS_MISCAST: chaos_effect += "miscast"; break;
case CHAOS_RAGE: chaos_effect += "berserk"; break;
case CHAOS_HEAL: chaos_effect += "healing"; break;
case CHAOS_HASTE: chaos_effect += "hasting"; break;
case CHAOS_INVIS: chaos_effect += "invisible"; break;
case CHAOS_SLOW: chaos_effect += "slowing"; break;
case CHAOS_PARALYSIS: chaos_effect += "paralysis"; break;
case CHAOS_PETRIFY: chaos_effect += "petrify"; break;
default: chaos_effect += "(other)"; break;
}
take_note(Note(NOTE_MESSAGE, 0, 0, chaos_effect), true);
#endif
switch (static_cast<chaos_type>(choice))
{
case CHAOS_CLONE:
{
ASSERT(can_clone);
ASSERT(clone_chance > 0);
ASSERT(defender->is_monster());
if (monster *clone = clone_mons(mon, true, &obvious_effect))
{
if (obvious_effect)
{
special_damage_message =
make_stringf("%s is duplicated!",
defender_name(false).c_str());
}
// The player shouldn't get new permanent followers from cloning.
if (clone->attitude == ATT_FRIENDLY && !clone->is_summoned())
clone->mark_summoned(6, true, MON_SUMM_CLONE);
// Monsters being cloned is interesting.
xom_is_stimulated(clone->friendly() ? 12 : 25);
}
break;
}
case CHAOS_POLY:
ASSERT(can_poly);
ASSERT(poly_chance > 0);
beam.flavour = BEAM_POLYMORPH;
break;
case CHAOS_POLY_UP:
ASSERT(can_poly);
ASSERT(poly_up_chance > 0);
ASSERT(defender->is_monster());
obvious_effect = you.can_see(*defender);
monster_polymorph(mon, RANDOM_MONSTER, PPT_MORE);
break;
case CHAOS_MAKE_SHIFTER:
{
ASSERT(can_poly);
ASSERT(shifter_chance > 0);
ASSERT(!is_shifter);
ASSERT(defender->is_monster());
obvious_effect = you.can_see(*defender);
mon->add_ench(one_chance_in(3) ? ENCH_GLOWING_SHAPESHIFTER
: ENCH_SHAPESHIFTER);
// Immediately polymorph monster, just to make the effect obvious.
monster_polymorph(mon, RANDOM_MONSTER);
// Xom loves it if this happens!
const int friend_factor = mon->friendly() ? 1 : 2;
const int glow_factor = mon->has_ench(ENCH_SHAPESHIFTER) ? 1 : 2;
xom_is_stimulated(64 * friend_factor * glow_factor);
break;
}
case CHAOS_MISCAST:
{
int level = defender->get_hit_dice();
// At level == 27 there's a 13.9% chance of a level 3 miscast.
int level0_chance = level;
int level1_chance = max(0, level - 7);
int level2_chance = max(0, level - 12);
int level3_chance = max(0, level - 17);
level = random_choose_weighted(
level0_chance, 0,
level1_chance, 1,
level2_chance, 2,
level3_chance, 3,
0);
miscast_level = level;
miscast_type = SPTYP_RANDOM;
miscast_target = defender;
break;
}
case CHAOS_RAGE:
ASSERT(can_rage);
ASSERT(rage_chance > 0);
defender->go_berserk(false);
obvious_effect = you.can_see(*defender);
break;
// For these, obvious_effect is computed during beam.fire() below.
case CHAOS_HEAL:
beam.flavour = BEAM_HEALING;
break;
case CHAOS_HASTE:
if (defender->is_player() && have_passive(passive_t::no_haste))
{
simple_god_message(" protects you from inadvertent hurry.");
obvious_effect = true;
break;
}
beam.flavour = BEAM_HASTE;
break;
case CHAOS_INVIS:
beam.flavour = BEAM_INVISIBILITY;
break;
case CHAOS_SLOW:
beam.flavour = BEAM_SLOW;
break;
case CHAOS_PARALYSIS:
beam.flavour = BEAM_PARALYSIS;
break;
case CHAOS_PETRIFY:
beam.flavour = BEAM_PETRIFY;
break;
default:
die("Invalid chaos effect type");
break;
}
if (beam.flavour != BEAM_NONE)
{
beam.glyph = 0;
beam.range = 0;
beam.colour = BLACK;
beam.effect_known = false;
// Wielded brand is always known, but maybe this was from a call
// to chaos_affect_actor.
beam.effect_wanton = !fake_chaos_attack;
if (using_weapon() && you.can_see(*attacker))
{
beam.name = wep_name(DESC_YOUR);
beam.item = weapon;
}
else
beam.name = atk_name(DESC_THE);
beam.thrower =
(attacker->is_player()) ? KILL_YOU
: attacker->as_monster()->confused_by_you() ? KILL_YOU_CONF
: KILL_MON;
if (beam.thrower == KILL_YOU || attacker->as_monster()->friendly())
beam.attitude = ATT_FRIENDLY;
beam.source_id = attacker->mid;
beam.source = defender->pos();
beam.target = defender->pos();
beam.damage = dice_def(damage_done + special_damage + aux_damage, 1);
beam.ench_power = beam.damage.num;
const bool you_could_see = you.can_see(*defender);
beam.fire();
if (you_could_see)
obvious_effect = beam.obvious_effect;
}
if (!you.can_see(*attacker))
obvious_effect = false;
}
// NOTE: random_chaos_brand() and random_chaos_attack_flavour() should
// return a set of effects that are roughly the same, to make it easy
// for chaos_affects_defender() not to do duplicate effects caused
// by the non-chaos brands/flavours they return.
brand_type attack::random_chaos_brand()
{
brand_type brand = SPWPN_NORMAL;
// Assuming the chaos to be mildly intelligent, try to avoid brands
// that clash with the most basic resists of the defender,
// i.e. its holiness.
while (true)
{
brand = (random_choose_weighted(
5, SPWPN_VORPAL,
10, SPWPN_FLAMING,
10, SPWPN_FREEZING,
10, SPWPN_ELECTROCUTION,
10, SPWPN_VENOM,
10, SPWPN_CHAOS,
5, SPWPN_DRAINING,
5, SPWPN_VAMPIRISM,
5, SPWPN_HOLY_WRATH,
5, SPWPN_ANTIMAGIC,
2, SPWPN_CONFUSE,
2, SPWPN_DISTORTION,
0));
if (one_chance_in(3))
break;
bool susceptible = true;
switch (brand)
{
case SPWPN_FLAMING:
if (defender->is_fiery())
susceptible = false;
break;
case SPWPN_FREEZING:
if (defender->is_icy())
susceptible = false;
break;
case SPWPN_VENOM:
if (defender->holiness() == MH_UNDEAD)
susceptible = false;
break;
case SPWPN_VAMPIRISM:
if (defender->is_summoned())
{
susceptible = false;
break;
}
// intentional fall-through
case SPWPN_DRAINING:
if (defender->holiness() != MH_NATURAL)
susceptible = false;
break;
case SPWPN_HOLY_WRATH:
if (!defender->holy_wrath_susceptible())
susceptible = false;
break;
case SPWPN_CONFUSE:
if (defender->holiness() == MH_NONLIVING
|| defender->holiness() == MH_PLANT)
{
susceptible = false;
}
break;
case SPWPN_ANTIMAGIC:
if (!defender->antimagic_susceptible())
susceptible = false;
break;
default:
break;
}
if (susceptible)
break;
}
#ifdef NOTE_DEBUG_CHAOS_BRAND
string brand_name = "CHAOS brand: ";
switch (brand)
{
case SPWPN_NORMAL: brand_name += "(plain)"; break;
case SPWPN_FLAMING: brand_name += "flaming"; break;
case SPWPN_FREEZING: brand_name += "freezing"; break;
case SPWPN_HOLY_WRATH: brand_name += "holy wrath"; break;
case SPWPN_ELECTROCUTION: brand_name += "electrocution"; break;
case SPWPN_VENOM: brand_name += "venom"; break;
case SPWPN_DRAINING: brand_name += "draining"; break;
case SPWPN_DISTORTION: brand_name += "distortion"; break;
case SPWPN_VAMPIRISM: brand_name += "vampirism"; break;
case SPWPN_VORPAL: brand_name += "vorpal"; break;
case SPWPN_ANTIMAGIC: brand_name += "antimagic"; break;
// both ranged and non-ranged
case SPWPN_CHAOS: brand_name += "chaos"; break;
case SPWPN_CONFUSE: brand_name += "confusion"; break;
default: brand_name += "(other)"; break;
}
// Pretty much duplicated by the chaos effect note,
// which will be much more informative.
if (brand != SPWPN_CHAOS)
take_note(Note(NOTE_MESSAGE, 0, 0, brand_name), true);
#endif
return brand;
}
void attack::do_miscast()
{
if (miscast_level == -1)
return;
ASSERT(miscast_target != nullptr);
ASSERT_RANGE(miscast_level, 0, 4);
ASSERT(count_bits(miscast_type) == 1);
if (!miscast_target->alive())
return;
if (miscast_target->is_player() && you.banished)
return;
const bool chaos_brand =
using_weapon() && get_weapon_brand(*weapon) == SPWPN_CHAOS;
// If the miscast is happening on the attacker's side and is due to
// a chaos weapon then make smoke/sand/etc pour out of the weapon
// instead of the attacker's hands.
string hand_str;
string cause = atk_name(DESC_THE);
const int ignore_mask = ISFLAG_KNOW_CURSE | ISFLAG_KNOW_PLUSES;
if (attacker->is_player())
{
if (chaos_brand)
{
cause = "a chaos effect from ";
// Ignore a lot of item flags to make cause as short as possible,
// so it will (hopefully) fit onto a single line in the death
// cause screen.
cause += wep_name(DESC_YOUR, ignore_mask | ISFLAG_COSMETIC_MASK);
if (miscast_target == attacker)
hand_str = wep_name(DESC_PLAIN, ignore_mask);
}
}
else
{
if (chaos_brand && miscast_target == attacker
&& you.can_see(*attacker))
{
hand_str = wep_name(DESC_PLAIN, ignore_mask);
}
}
MiscastEffect(miscast_target, attacker, MELEE_MISCAST,
(spschool_flag_type) miscast_type, miscast_level, cause,
NH_NEVER, 0, hand_str, false);
// Don't do miscast twice for one attack.
miscast_level = -1;
}
void attack::drain_defender()
{
if (defender->is_monster() && coinflip())
return;
if (defender->holiness() != MH_NATURAL)
return;
special_damage = resist_adjust_damage(defender, BEAM_NEG,
(1 + random2(damage_done)) / 2);