boss_volkhan.cpp

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "halls_of_lightning.h"
#include "ScriptMgr.h"
#include "GameObject.h"
#include "InstanceScript.h"
#include "Map.h"
#include "MotionMaster.h"
#include "ObjectAccessor.h"
#include "ScriptedCreature.h"
#include "SpellAuraEffects.h"
#include "SpellInfo.h"
#include "SpellScript.h"
 
enum Texts
{
 // Volkhan
 SAY_AGGRO = 0,
 SAY_ANNOUNCE_RUN_TO_ANVIL = 1,
 SAY_RUN_TO_ANVIL = 2,
 SAY_SHATTERING_STOMP = 3,
 SAY_ANNOUNCE_SHATTERING_STOMP = 4,
 SAY_DEATH = 5,
 SAY_SLAY = 6
};
 
enum Spells
{
 // Volkhan
 SPELL_TEMPER_SUMMON_OBJECT = 52661,
 SPELL_TEMPER_DUMMY_INTRO = 52654,
 SPELL_TEMPER_DUMMY_COMBAT = 52238,
 SPELL_SHATTERING_STOMP = 52237,
 SPELL_HEAT = 52387,
 SPELL_DAZE_IMMUNITY_CANCEL = 59556,
 
 // Volkhan's Anvil
 SPELL_SUMMON_MOLTEN_GOLEM = 52405,
 
 // Molten Golem
 SPELL_COOL_DOWN = 52441,
 SPELL_COOL_DOWN_SLOW = 52443,
 SPELL_STUN_SELF = 47067, // Serverside spell @todo
 SPELL_COSMETIC_STUN_IMMUNE_FREEZE_AMNIM = 59123,
 SPELL_INSTAKILL_SELF = 29878, // Serverside spell
 SPELL_IMMOLATION_STRIKE = 52433
};
 
#define SPELL_SHATTER DUNGEON_MODE<uint32>(52429,59527)
 
enum Events
{
 // Volkhan
 EVENT_TEMPER_INTRO = 1,
 EVENT_RUN_TO_ANVIL,
 EVENT_TEMPER,
 EVENT_HEAT,
 EVENT_SHATTERING_STOMP,
 
 // Molten Golem
 EVENT_IMMOLATION_STRIKE
};
 
enum Actions
{
 // Volkhan
 ACTION_SHATTER_GOLEMS = 0,
 ACTION_GOLEMS_TEMPERED = 1,
 
 // Molten Golem
 ACTION_SHATTER = 0
};
 
enum Phases
{
 // Volkhan
 PHASE_INTRO = 1,
 PHASE_COMBAT
};
 
enum MovePoints
{
 // Volkhan
 POINT_ID_ANVIL = 0
};
 
enum Misc
{
 ENTRY_BRITTLE_GOLEM = 28681
};
 
enum Data
{
 DATA_SHATTER_RESISTANT = 0
};
 
static Position const AnvilPosition = { 1333.5901f, -103.67797f, 56.7177f };
 
struct boss_volkhan : public BossAI
{
 boss_volkhan(Creature* creature) : BossAI(creature, DATA_VOLKHAN),
 _shatteredGolems(false), _temperingGolems(false), _temperCycles(0), _shatteredGolemsCount(0) { }
 
 void JustAppeared() override
 {
 events.SetPhase(PHASE_INTRO);
 events.ScheduleEvent(EVENT_TEMPER_INTRO, 13s, 0, PHASE_INTRO);
 }
 
 void JustEngagedWith(Unit* who) override
 {
 BossAI::JustEngagedWith(who);
 Talk(SAY_AGGRO, who);
 events.SetPhase(PHASE_COMBAT);
 }
 
 void EnterEvadeMode(EvadeReason /*why*/) override
 {
 summons.DespawnAll();
 _DespawnAtEvade();
 }
 
 void JustDied(Unit* killer) override
 {
 BossAI::JustDied(killer);
 Talk(SAY_DEATH, killer);
 }
 
 void KilledUnit(Unit* who) override
 {
 if (who->IsPlayer())
 Talk(SAY_SLAY, who);
 }
 
 void MovementInform(uint32 motionType, uint32 id) override
 {
 if (motionType != POINT_MOTION_TYPE)
 return;
 
 switch (id)
 {
 case POINT_ID_ANVIL:
 events.ScheduleEvent(EVENT_TEMPER, 1s, 0, PHASE_COMBAT);
 break;
 default:
 break;
 }
 }
 
 void DamageTaken(Unit* /*attacker*/, uint32& damage, DamageEffectType /*damageType*/, SpellInfo const* /*spellInfo*/) override
 {
 if (damage >= me->GetHealth() || _shatteredGolems)
 return;
 
 if (_temperCycles >= 3 && !_temperingGolems && !_shatteredGolems && me->HealthBelowPctDamaged(25, damage))
 {
 events.CancelEvent(EVENT_RUN_TO_ANVIL);
 events.ScheduleEvent(EVENT_SHATTERING_STOMP, 1ms, 0, PHASE_COMBAT);
 _shatteredGolems = true;
 return;
 }
 
 if (_temperCycles < 3 && me->HealthBelowPctDamaged(100.f - (20.f + 20.f * _temperCycles), damage))
 {
 if (!_temperingGolems)
 {
 events.ScheduleEvent(EVENT_RUN_TO_ANVIL, 1ms, 0, PHASE_COMBAT);
 _temperingGolems = true;
 }
 ++_temperCycles;
 }
 
 }
 
 void DoAction(int32 action) override
 {
 switch (action)
 {
 case ACTION_SHATTER_GOLEMS:
 summons.RemoveNotExisting();
 for (ObjectGuid const& guid : summons)
 {
 if (Creature* golem = ObjectAccessor::GetCreature(*me, guid))
 {
 if (golem->HasAura(SPELL_COSMETIC_STUN_IMMUNE_FREEZE_AMNIM))
 {
 if (CreatureAI* ai = golem->AI())
 {
 ai->DoAction(ACTION_SHATTER);
 ++_shatteredGolemsCount;
 }
 }
 }
 }
 break;
 case ACTION_GOLEMS_TEMPERED:
 _temperingGolems = false;
 break;
 default:
 break;
 }
 }
 
 uint32 GetData(uint32 type) const override
 {
 switch (type)
 {
 case DATA_SHATTER_RESISTANT:
 return _shatteredGolemsCount;
 default:
 return 0;
 }
 
 return 0;
 }
 
 void UpdateAI(uint32 diff) override
 {
 if (!UpdateVictim() && !events.IsInPhase(PHASE_INTRO))
 return;
 
 events.Update(diff);
 
 if (me->HasUnitState(UNIT_STATE_CASTING))
 return;
 
 while (uint32 eventId = events.ExecuteEvent())
 {
 switch (eventId)
 {
 case EVENT_TEMPER_INTRO:
 DoCastAOE(SPELL_TEMPER_SUMMON_OBJECT);
 DoCastAOE(SPELL_TEMPER_DUMMY_INTRO);
 events.Repeat(13s);
 break;
 case EVENT_RUN_TO_ANVIL:
 me->AttackStop();
 me->SetReactState(REACT_PASSIVE);
 me->GetMotionMaster()->MovePoint(POINT_ID_ANVIL, AnvilPosition);
 events.CancelEvent(EVENT_HEAT);
 Talk(SAY_ANNOUNCE_RUN_TO_ANVIL);
 Talk(SAY_RUN_TO_ANVIL);
 break;
 case EVENT_TEMPER:
 if (Creature const* anvil = instance->GetCreature(DATA_VOLKHANS_ANVIL))
 {
 me->SetFacingToObject(anvil);
 DoCastAOE(SPELL_TEMPER_SUMMON_OBJECT);
 DoCastAOE(SPELL_TEMPER_DUMMY_COMBAT);
 me->SetReactState(REACT_AGGRESSIVE);
 events.ScheduleEvent(EVENT_HEAT, 8s + 500ms, 0, PHASE_COMBAT);
 }
 break;
 case EVENT_HEAT:
 DoCastAOE(SPELL_HEAT);
 events.Repeat(10s);
 break;
 case EVENT_SHATTERING_STOMP:
 events.CancelEvent(EVENT_HEAT);
 Talk(SAY_SHATTERING_STOMP);
 Talk(SAY_ANNOUNCE_SHATTERING_STOMP);
 DoCastAOE(SPELL_SHATTERING_STOMP);
 break;
 default:
 break;
 }
 
 if (me->HasUnitState(UNIT_STATE_CASTING))
 return;
 }
 }
 
private:
 bool _shatteredGolems;
 bool _temperingGolems;
 uint8 _temperCycles;
 uint8 _shatteredGolemsCount;
};
 
struct npc_volkhan_molten_golem : public ScriptedAI
{
 npc_volkhan_molten_golem(Creature* creature) : ScriptedAI(creature) { }
 
 void JustAppeared() override
 {
 DoCastSelf(SPELL_COOL_DOWN);
 //DoCastSelf(SPELL_STUN_SELF);
 }
 
 void JustEngagedWith(Unit* /*who*/) override
 {
 _events.ScheduleEvent(EVENT_IMMOLATION_STRIKE, 7s, 12s);
 }
 
 void EnterEvadeMode(EvadeReason why) override
 {
 ScriptedAI::EnterEvadeMode(why);
 _events.Reset();
 }
 
 void JustDied(Unit* /*killer*/) override
 {
 me->DespawnOrUnsummon(5s);
 }
 
 void DoAction(int32 action) override
 {
 switch (action)
 {
 case ACTION_SHATTER:
 me->RemoveAurasDueToSpell(SPELL_COSMETIC_STUN_IMMUNE_FREEZE_AMNIM);
 DoCastAOE(SPELL_SHATTER);
 DoCastSelf(SPELL_INSTAKILL_SELF);
 break;
 default:
 break;
 }
 }
 
 void DamageTaken(Unit* attacker, uint32& damage, DamageEffectType /*damageType*/, SpellInfo const* /*spellInfo*/) override
 {
 // Molten Golems cannot die from foreign damage. They will kill themselves via suicide spell when getting shattered
 if (damage >= me->GetHealth() && attacker != me)
 damage = me->GetHealth() - 1;
 }
 
 void UpdateAI(uint32 diff) override
 {
 if (!UpdateVictim())
 return;
 
 _events.Update(diff);
 
 if (me->HasUnitState(UNIT_STATE_CASTING))
 return;
 
 while (uint32 eventId = _events.ExecuteEvent())
 {
 switch (eventId)
 {
 case EVENT_IMMOLATION_STRIKE:
 DoCastVictim(SPELL_IMMOLATION_STRIKE);
 _events.Repeat(5s);
 break;
 default:
 break;
 }
 
 if (me->HasUnitState(UNIT_STATE_CASTING))
 return;
 }
 }
 
private:
 EventMap _events;
};
 
// 52654, 52238 - Temper
class spell_volkhan_temper_dummy : public SpellScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo({ SPELL_TEMPER_DUMMY_COMBAT });
 }
 
 void HandleDummyEffect(SpellEffIndex /*effIndex*/)
 {
 Unit* target = GetHitUnit();
 if (InstanceScript* instance = target->GetInstanceScript())
 if (GameObject* temperVisual = instance->GetGameObject(DATA_VOLKHAN_TEMPER_VISUAL))
 temperVisual->SendCustomAnim(0);
 
 if (GetSpellInfo()->Id == SPELL_TEMPER_DUMMY_COMBAT)
 {
 for (uint8 i = 0; i < 2; ++i)
 GetHitUnit()->CastSpell(nullptr, SPELL_SUMMON_MOLTEN_GOLEM);
 
 if (Unit* caster = GetCaster())
 if (Creature* creatureCaster = caster->ToCreature())
 if (CreatureAI* ai = creatureCaster->AI())
 ai->DoAction(ACTION_GOLEMS_TEMPERED);
 }
 }
 
 void Register() override
 {
 OnEffectHitTarget += SpellEffectFn(spell_volkhan_temper_dummy::HandleDummyEffect, EFFECT_0, SPELL_EFFECT_DUMMY);
 }
};
 
// 52441 - Cool Down
class spell_volkhan_cool_down : public AuraScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo({ SPELL_COOL_DOWN_SLOW, SPELL_COSMETIC_STUN_IMMUNE_FREEZE_AMNIM });
 }
 
 void HandlePeriodicDummyEffect(AuraEffect const* /*aurEff*/)
 {
 Unit* target = GetTarget();
 if (target->GetHealthPct() > 1.f)
 {
 // This damage part feels weird but there is no trace of spells in sniffs that could do such thing otherwise.
 Unit::DealDamage(target, target, CalculatePct(target->GetMaxHealth(), target->GetMap()->IsHeroic() ? 1 : 2));
 int32 bp = 0 - static_cast<int32>(100.f - target->GetHealthPct());
 target->CastSpell(nullptr, SPELL_COOL_DOWN_SLOW, CastSpellExtraArgs().AddSpellBP0(bp));
 }
 else
 {
 target->CastSpell(nullptr, SPELL_COSMETIC_STUN_IMMUNE_FREEZE_AMNIM);
 target->RemoveAurasDueToSpell(SPELL_COOL_DOWN_SLOW);
 GetAura()->Remove();
 }
 }
 
 void Register() override
 {
 OnEffectPeriodic += AuraEffectPeriodicFn(spell_volkhan_cool_down::HandlePeriodicDummyEffect, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
 }
};
 
// 59123 Cosmetic - Stun + Immune Permanent (Freeze Anim)
class spell_volkhan_cosmetic_stun_immune_permanent : public AuraScript
{
 void HandleApply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
 {
 if (Creature* target = GetTarget()->ToCreature())
 target->UpdateEntry(ENTRY_BRITTLE_GOLEM, nullptr, false);
 }
 
 void Register() override
 {
 AfterEffectApply += AuraEffectApplyFn(spell_volkhan_cosmetic_stun_immune_permanent::HandleApply, EFFECT_0, SPELL_AURA_MOD_STUN, AURA_EFFECT_HANDLE_REAL);
 }
};
 
// 52237, 59529 - Shattering Stomp
class spell_volkhan_shattering_stomp : public SpellScript
{
 void HandleShattering()
 {
 if (Creature* caster = GetCaster()->ToCreature())
 if (CreatureAI* ai = caster->AI())
 ai->DoAction(ACTION_SHATTER_GOLEMS);
 }
 
 void Register() override
 {
 AfterCast += SpellCastFn(spell_volkhan_shattering_stomp::HandleShattering);
 }
};
 
class achievement_shatter_resistant : public AchievementCriteriaScript
{
 public:
 achievement_shatter_resistant() : AchievementCriteriaScript("achievement_shatter_resistant") { }
 
 bool OnCheck(Player* /*source*/, Unit* target) override
 {
 if (!target || !target->IsCreature())
 return false;
 
 if (Creature* creature = target->ToCreature())
 if (CreatureAI* ai = creature->AI())
 return ai->GetData(DATA_SHATTER_RESISTANT) < 5;
 
 return false;
 }
};
 
void AddSC_boss_volkhan()
{
 RegisterHallsOfLightningCreatureAI(boss_volkhan);
 RegisterHallsOfLightningCreatureAI(npc_volkhan_molten_golem);
 RegisterSpellScript(spell_volkhan_temper_dummy);
 RegisterSpellScript(spell_volkhan_cool_down);
 RegisterSpellScript(spell_volkhan_cosmetic_stun_immune_permanent);
 RegisterSpellScript(spell_volkhan_shattering_stomp);
 new achievement_shatter_resistant();
}