boss_telash_greywing.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 "AreaTrigger.h"
#include "AreaTriggerAI.h"
#include "CreatureAI.h"
#include "CreatureAIImpl.h"
#include "Map.h"
#include "MotionMaster.h"
#include "InstanceScript.h"
#include "ObjectAccessor.h"
#include "Player.h"
#include "ScriptMgr.h"
#include "ScriptedCreature.h"
#include "SpellAuraEffects.h"
#include "SpellScript.h"
#include "SpellAuras.h"
#include "SharedDefines.h"
#include "azure_vault.h"
 
enum TelashSpells
{
 // Telash
 SPELL_POWER_ENERGIZE_ICE_POWER_PERIODIC = 389453,
 SPELL_FROST_BOMB_CAST = 386781,
 SPELL_FROST_BOMB_AURA = 386881,
 SPELL_FROST_BOMB_DAMAGE = 386910,
 SPELL_FROZEN_GROUND_AT = 387149,
 SPELL_ICY_DEVASTATOR = 387151,
 SPELL_ABSOLUTE_ZERO_CAST = 387928,
 SPELL_ABSOLUTE_ZERO_JUMP = 387981,
 SPELL_ABSOLUTE_ZERO_JUMP_BACK = 388082,
 SPELL_ABSOLUTE_ZERO_SHIELD = 388084,
 SPELL_ABSOLUTE_ZERO_DAMAGE = 388008,
 SPELL_ACTIVATE_VAULT_RUNE = 390209,
 SPELL_VAULT_RUNE_AT_AURA = 388065,
 SPELL_VAULT_RUNE_SHIELD = 390201,
 SPELL_INACTIVE_VAULT_RUNE = 390238,
 
 // Conversation
 SPELL_TELASH_APPROACH_CONV = 389379
};
 
enum TelashEvents
{
 EVENT_FROST_BOMB = 1,
 EVENT_ICY_DEVASTATOR = 2,
 EVENT_ABSOLUTE_ZERO = 3
};
 
enum TelashSummonGroups
{
 SUMMON_GROUP_TELASH_VAULT_RUNES = 0
};
 
enum TelashActions
{
 ACTION_RESCHEDULE_SPELLS = 1,
};
 
enum TelashText
{
 SAY_AGGRO = 0,
 SAY_FROST_BOMB = 1,
 SAY_ICY_DEVASTATOR = 2,
 SAY_FLY_TO_MIDDLE = 3,
 SAY_ANNOUNCE_ABSOLUTE_ZERO = 4,
 SAY_DEATH = 5
};
 
Position const TelashJumpPosition = { -5336.8003f, 1066.6493f, 344.32678f };
 
Position const TelashJumpBackPositions[] =
{
 { -5350.0835f, 1089.8976f, 340.5709f, 5.0882f },
 { -5310.4464f, 1066.8134f, 340.5967f, 3.9184f },
 { -5350.3934f, 1043.9323f, 340.5894f, 2.0924f }
};
 
// 186737 - Telash Greywing
struct boss_telash_greywing : public BossAI
{
 boss_telash_greywing(Creature* creature) : BossAI(creature, DATA_TELASH_GREYWING), _isInCenter(false), _frostBombRemaining(0), _icyDevastatorRemaining(0) { }
 
 void JustAppeared() override
 {
 me->SummonCreatureGroup(SUMMON_GROUP_TELASH_VAULT_RUNES);
 me->SetPower(me->GetPowerType(), 60);
 }
 
 void JustEngagedWith(Unit* who) override
 {
 BossAI::JustEngagedWith(who);
 instance->SendEncounterUnit(ENCOUNTER_FRAME_ENGAGE, me, 1);
 
 _frostBombRemaining = 1;
 _icyDevastatorRemaining = 1;
 
 Talk(SAY_AGGRO);
 DoCast(SPELL_POWER_ENERGIZE_ICE_POWER_PERIODIC);
 events.ScheduleEvent(EVENT_FROST_BOMB, 3500ms);
 events.ScheduleEvent(EVENT_ICY_DEVASTATOR, 14500ms);
 events.ScheduleEvent(EVENT_ABSOLUTE_ZERO, 500ms);
 }
 
 void EnterEvadeMode(EvadeReason /*why*/) override
 {
 summons.DespawnAll();
 _EnterEvadeMode();
 _DespawnAtEvade();
 }
 
 void JustDied(Unit* /*killer*/) override
 {
 Talk(SAY_DEATH);
 summons.DespawnAll();
 }
 
 void MovementInform(uint32 /*type*/, uint32 id) override
 {
 if (id == EVENT_JUMP)
 {
 if (!_isInCenter)
 {
 DoCastSelf(SPELL_ABSOLUTE_ZERO_DAMAGE);
 _isInCenter = true;
 }
 else
 {
 DoCastSelf(SPELL_POWER_ENERGIZE_ICE_POWER_PERIODIC);
 me->RemoveAurasDueToSpell(SPELL_ABSOLUTE_ZERO_SHIELD);
 me->SetReactState(REACT_AGGRESSIVE);
 _isInCenter = false;
 }
 }
 }
 
 void UpdateAI(uint32 diff) override
 {
 scheduler.Update(diff);
 
 if (!UpdateVictim())
 return;
 
 events.Update(diff);
 
 if (me->HasUnitState(UNIT_STATE_CASTING))
 return;
 
 while (uint32 eventId = events.ExecuteEvent())
 {
 switch (eventId)
 {
 case EVENT_FROST_BOMB:
 {
 Talk(SAY_FROST_BOMB);
 DoCastSelf(SPELL_FROST_BOMB_CAST);
 
 _frostBombRemaining--;
 if (!_frostBombRemaining)
 {
 if (_icyDevastatorRemaining == 1)
 {
 events.CancelEvent(EVENT_ICY_DEVASTATOR);
 events.ScheduleEvent(EVENT_ICY_DEVASTATOR, 10800ms);
 }
 break;
 }
 
 events.ScheduleEvent(EVENT_FROST_BOMB, _frostBombRemaining == 2 ? 18200ms : 15800ms);
 break;
 }
 case EVENT_ICY_DEVASTATOR:
 {
 if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 75.0f, true))
 {
 Talk(SAY_ICY_DEVASTATOR);
 DoCast(target, SPELL_ICY_DEVASTATOR);
 
 _icyDevastatorRemaining--;
 if (!_icyDevastatorRemaining)
 {
 if (_frostBombRemaining == 1)
 {
 events.CancelEvent(EVENT_FROST_BOMB);
 events.ScheduleEvent(EVENT_FROST_BOMB, 7300ms);
 }
 break;
 }
 events.ScheduleEvent(EVENT_ICY_DEVASTATOR, 23100ms);
 }
 break;
 }
 case EVENT_ABSOLUTE_ZERO:
 if (me->GetPower(me->GetPowerType()) >= 100)
 {
 Talk(SAY_FLY_TO_MIDDLE);
 Talk(SAY_ANNOUNCE_ABSOLUTE_ZERO);
 me->SetReactState(REACT_PASSIVE);
 me->SetDisableGravity(true, true);
 me->RemoveAurasDueToSpell(SPELL_POWER_ENERGIZE_ICE_POWER_PERIODIC);
 DoCastSelf(SPELL_ABSOLUTE_ZERO_CAST);
 DoCastSelf(SPELL_ABSOLUTE_ZERO_SHIELD);
 DoCastSelf(SPELL_ACTIVATE_VAULT_RUNE);
 events.CancelEvent(EVENT_FROST_BOMB);
 events.CancelEvent(EVENT_ICY_DEVASTATOR);
 }
 events.Repeat(500ms);
 break;
 default:
 break;
 }
 if (me->HasUnitState(UNIT_STATE_CASTING))
 return;
 }
 }
 
 void DoAction(int32 param) override
 {
 if (param == ACTION_RESCHEDULE_SPELLS)
 {
 _frostBombRemaining = 3;
 _icyDevastatorRemaining = 2;
 
 events.ScheduleEvent(EVENT_FROST_BOMB, 4300ms);
 events.ScheduleEvent(EVENT_ICY_DEVASTATOR, 15200ms);
 }
 }
 
private:
 bool _isInCenter;
 uint8 _frostBombRemaining;
 uint8 _icyDevastatorRemaining;
};
 
// 30743 - Vault Rune
struct at_telash_greywing_vault_rune : AreaTriggerAI
{
 at_telash_greywing_vault_rune(AreaTrigger* areatrigger) : AreaTriggerAI(areatrigger) { }
 
 void OnUnitEnter(Unit* unit) override
 {
 if (!unit->IsPlayer())
 return;
 
 Unit* caster = at->GetCaster();
 if (!caster)
 return;
 
 if (caster->HasAura(SPELL_VAULT_RUNE_SHIELD))
 return;
 
 caster->CastSpell(nullptr, SPELL_VAULT_RUNE_SHIELD, true);
 }
 
 void OnUnitExit(Unit* unit) override
 {
 if (!unit->IsPlayer())
 return;
 
 for (ObjectGuid const& guid : at->GetInsideUnits())
 {
 Player* player = ObjectAccessor::GetPlayer(*at, guid);
 if (!player)
 continue;
 
 if (player->isDead())
 continue;
 
 return;
 }
 
 Unit* caster = at->GetCaster();
 if (!caster)
 return;
 
 caster->RemoveAurasDueToSpell(SPELL_VAULT_RUNE_SHIELD);
 }
 
 void OnRemove() override
 {
 if (!at->GetMap()->IsMythic() && !at->GetMap()->IsMythicPlus())
 return;
 
 for (ObjectGuid const& guid : at->GetInsideUnits())
 {
 Player* player = ObjectAccessor::GetPlayer(*at, guid);
 if (!player)
 continue;
 
 if (player->isDead())
 continue;
 
 Unit* caster = at->GetCaster();
 if (!caster)
 return;
 
 caster->CastSpell(caster, SPELL_INACTIVE_VAULT_RUNE, true);
 break;
 }
 }
};
 
// 389453 - Ice Power (periodic)
class spell_telash_ice_power_periodic : public AuraScript
{
 void HandlePeriodic(AuraEffect const* /*aurEff*/)
 {
 Unit* target = GetTarget();
 target->SetPower(target->GetPowerType(), target->GetPower(POWER_ENERGY) + 2);
 }
 
 void Register() override
 {
 OnEffectPeriodic += AuraEffectPeriodicFn(spell_telash_ice_power_periodic::HandlePeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
 }
};
 
// 386781 - Frost Bomb
class spell_telash_frost_bomb_cast : public SpellScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo({ SPELL_FROST_BOMB_AURA });
 }
 
 void HandleHit(SpellEffIndex /*effIndex*/)
 {
 GetCaster()->CastSpell(GetHitUnit(), SPELL_FROST_BOMB_AURA, true);
 }
 
 void Register() override
 {
 OnEffectHitTarget += SpellEffectFn(spell_telash_frost_bomb_cast::HandleHit, EFFECT_0, SPELL_EFFECT_DUMMY);
 }
};
 
// 386881 - Frost Bomb
class spell_telash_frost_bomb_aura : public AuraScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo(
 {
 SPELL_FROST_BOMB_DAMAGE,
 SPELL_FROZEN_GROUND_AT
 });
 }
 
 void OnRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
 {
 if (GetTargetApplication()->GetRemoveMode() != AURA_REMOVE_BY_EXPIRE)
 return;
 
 if (Unit* caster = GetCaster())
 {
 caster->CastSpell(GetTarget(), SPELL_FROZEN_GROUND_AT, true);
 caster->CastSpell(GetTarget(), SPELL_FROST_BOMB_DAMAGE, true);
 }
 }
 
 void Register() override
 {
 OnEffectRemove += AuraEffectRemoveFn(spell_telash_frost_bomb_aura::OnRemove, EFFECT_0, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_REAL);
 }
};
 
// 387928 - Absolute Zero
class spell_telash_absolute_zero_cast : public SpellScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo({ SPELL_ABSOLUTE_ZERO_JUMP });
 }
 
 void HandleHit(SpellEffIndex /*effIndex*/)
 {
 GetCaster()->CastSpell(TelashJumpPosition, SPELL_ABSOLUTE_ZERO_JUMP, true);
 }
 
 void Register() override
 {
 OnEffectHitTarget += SpellEffectFn(spell_telash_absolute_zero_cast::HandleHit, EFFECT_0, SPELL_EFFECT_DUMMY);
 }
};
 
// 390209 - Activate Vault Rune
class spell_telash_activate_vault_rune : public SpellScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo(
 {
 SPELL_VAULT_RUNE_AT_AURA,
 SPELL_INACTIVE_VAULT_RUNE
 });
 }
 
 void HandleHitTarget(SpellEffIndex /*effIndex*/)
 {
 if (GetHitUnit()->HasAura(SPELL_INACTIVE_VAULT_RUNE))
 return;
 
 GetHitUnit()->CastSpell(nullptr, SPELL_VAULT_RUNE_AT_AURA, true);
 }
 
 void Register() override
 {
 OnEffectHitTarget += SpellEffectFn(spell_telash_activate_vault_rune::HandleHitTarget, EFFECT_0, SPELL_EFFECT_DUMMY);
 }
};
 
// 388008 - Absolute Zero
class spell_telash_absolute_zero_damage : public SpellScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo(
 {
 SPELL_ABSOLUTE_ZERO_JUMP_BACK,
 SPELL_VAULT_RUNE_AT_AURA,
 SPELL_VAULT_RUNE_SHIELD
 });
 }
 
 Position const& GetClosestPositionToMaxThreatTarget(Unit* victim)
 {
 float nearestDist = std::numeric_limits<float>::max();
 Position const* nearestPos = &TelashJumpBackPositions[0];
 
 for (Position const& pos : TelashJumpBackPositions)
 {
 float dist = victim->GetDistance(pos);
 if (dist < nearestDist)
 {
 nearestDist = dist;
 nearestPos = &pos;
 }
 }
 
 return *nearestPos;
 }
 
 void HandleAfterCast()
 {
 Unit* caster = GetCaster();
 UnitAI* casterAI = caster->GetAI();
 if (!casterAI)
 return;
 
 Unit* victim = casterAI->SelectTarget(SelectTargetMethod::MaxThreat);
 if (!victim)
 return;
 
 casterAI->DoAction(ACTION_RESCHEDULE_SPELLS);
 caster->CastSpell(GetClosestPositionToMaxThreatTarget(victim), SPELL_ABSOLUTE_ZERO_JUMP_BACK, true);
 }
 
 void HandleHitTarget(SpellEffIndex /*effIndex*/)
 {
 GetHitUnit()->RemoveAurasDueToSpell(SPELL_VAULT_RUNE_AT_AURA);
 GetHitUnit()->RemoveAurasDueToSpell(SPELL_VAULT_RUNE_SHIELD);
 }
 
 void Register() override
 {
 AfterCast += SpellCastFn(spell_telash_absolute_zero_damage::HandleAfterCast);
 OnEffectHitTarget += SpellEffectFn(spell_telash_absolute_zero_damage::HandleHitTarget, EFFECT_1, SPELL_EFFECT_DUMMY);
 }
};
 
void AddSC_boss_telash_greywing()
{
 // Creature
 RegisterAzureVaultCreatureAI(boss_telash_greywing);
 
 // AreaTrigger
 RegisterAreaTriggerAI(at_telash_greywing_vault_rune);
 
 // Spells
 RegisterSpellScript(spell_telash_ice_power_periodic);
 RegisterSpellScript(spell_telash_frost_bomb_cast);
 RegisterSpellScript(spell_telash_frost_bomb_aura);
 RegisterSpellScript(spell_telash_absolute_zero_cast);
 RegisterSpellScript(spell_telash_activate_vault_rune);
 RegisterSpellScript(spell_telash_absolute_zero_damage);
}