boss_cragmaw_the_infested.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 "InstanceScript.h"
#include "Map.h"
#include "MotionMaster.h"
#include "ObjectAccessor.h"
#include "ScriptMgr.h"
#include "ScriptedCreature.h"
#include "SpellAuraEffects.h"
#include "SpellScript.h"
#include "SpellAuras.h"
#include "SharedDefines.h"
#include "TemporarySummon.h"
#include "underrot.h"
 
enum CragmawSpells
{
 // Cragmaw
 SPELL_CRAWG_EATING = 279156,
 SPELL_POWER_DISPLAY_TANTRUM = 271771,
 SPELL_POWER_ENERGIZE_TANTRUM = 271775,
 SPELL_CHARGE_SELECTOR = 260292,
 SPELL_INDIGESTION = 260793,
 SPELL_TANTRUM_INITIAL = 260333,
 
 // Larva
 SPELL_DESTROY_LARVA = 260418,
 SPELL_METAMORPHOSIS_2 = 260766,
 SPELL_SUMMON_BLOOD_TICK = 260353,
 SPELL_SUMMON_BLOOD_TICK_VISUAL = 260496,
 
 // Blood Tick
 SPELL_BLOOD_BURST_DAMAGE = 278637,
 SPELL_SERRATED_FANGS = 260455,
 
 // Fetid Maggot
 SPELL_FEIGN_DEATH = 159474
};
 
enum CragmawEvents
{
 // Cragmaw
 EVENT_CHARGE_SELECTOR = 1,
 EVENT_INDIGESTION,
 EVENT_NORMAL_REQUEUE,
 EVENT_CHECK_ENERGY_TANTRUM,
 
 // Blood Tick
 EVENT_SERRATED_FANGS = 1
};
 
enum CragmawPoints
{
 POINT_TANTRUM_START_RND_MOVEMENT = 0
};
 
enum CragmawNPC
{
 NPC_FETID_MAGGOT = 130909
};
 
Position const FetidMaggotSpawn = { 857.864f, 984.981f, 39.231f, 4.68147f };
 
// 131817 - Cragmaw the Infested
struct boss_cragmaw_the_infested : public BossAI
{
 boss_cragmaw_the_infested(Creature* creature) : BossAI(creature, DATA_CRAGMAW_THE_INFESTED) { }
 
 void JustDied(Unit* /*killer*/) override
 {
 _JustDied();
 instance->SendEncounterUnit(ENCOUNTER_FRAME_DISENGAGE, me);
 }
 
 void JustAppeared() override
 {
 me->SetPowerType(POWER_ENERGY);
 DoCast(SPELL_POWER_DISPLAY_TANTRUM);
 
 if (instance->GetData(DATA_CRAGMAW_CRAWG_EATING))
 return;
 
 DoCastSelf(SPELL_CRAWG_EATING);
 me->SetEmoteState(EMOTE_STATE_EAT);
 if (TempSummon* summon = me->SummonCreature(NPC_FETID_MAGGOT, FetidMaggotSpawn))
 {
 _fetidMaggotGuid = summon->GetGUID();
 summon->CastSpell(nullptr, SPELL_FEIGN_DEATH, true);
 }
 }
 
 void EnterEvadeMode(EvadeReason /*why*/) override
 {
 instance->SendEncounterUnit(ENCOUNTER_FRAME_DISENGAGE, me);
 summons.DespawnAll();
 _EnterEvadeMode();
 _DespawnAtEvade();
 }
 
 void ScheduleSpells()
 {
 events.Reset();
 
 if (GetDifficulty() == DIFFICULTY_NORMAL)
 events.ScheduleEvent(EVENT_NORMAL_REQUEUE, 45s);
 
 if (urand(0, 1) == 0)
 {
 events.ScheduleEvent(EVENT_CHARGE_SELECTOR, 9s);
 events.ScheduleEvent(EVENT_INDIGESTION, 20s);
 events.ScheduleEvent(EVENT_CHARGE_SELECTOR, 33s);
 }
 else
 {
 events.ScheduleEvent(EVENT_INDIGESTION, 9s);
 events.ScheduleEvent(EVENT_CHARGE_SELECTOR, 21s);
 events.ScheduleEvent(EVENT_CHARGE_SELECTOR, 41s);
 }
 }
 
 void JustEngagedWith(Unit* who) override
 {
 BossAI::JustEngagedWith(who);
 instance->SendEncounterUnit(ENCOUNTER_FRAME_ENGAGE, me, 1);
 instance->SetData(DATA_CRAGMAW_CRAWG_EATING, 1);
 ScheduleSpells();
 events.ScheduleEvent(EVENT_CHECK_ENERGY_TANTRUM, 500ms);
 
 if (Creature* fetidMaggot = ObjectAccessor::GetCreature(*me, _fetidMaggotGuid))
 fetidMaggot->DespawnOrUnsummon();
 
 if (IsHeroicOrHigher())
 DoCast(SPELL_POWER_ENERGIZE_TANTRUM);
 }
 
 void MovementInform(uint32 /*type*/, uint32 id) override
 {
 if (id == POINT_TANTRUM_START_RND_MOVEMENT)
 me->GetMotionMaster()->MoveRandom(20.0f);
 }
 
 void OnChannelFinished(SpellInfo const* spell) override
 {
 if (spell->Id == SPELL_TANTRUM_INITIAL)
 me->SetReactState(REACT_AGGRESSIVE);
 };
 
 void UpdateAI(uint32 diff) override
 {
 if (!UpdateVictim())
 return;
 
 events.Update(diff);
 
 if (me->HasUnitState(UNIT_STATE_CASTING))
 return;
 
 switch (events.ExecuteEvent())
 {
 case EVENT_CHARGE_SELECTOR:
 DoCast(SPELL_CHARGE_SELECTOR);
 break;
 case EVENT_INDIGESTION:
 DoCast(SPELL_INDIGESTION);
 break;
 case EVENT_NORMAL_REQUEUE:
 ScheduleSpells();
 break;
 case EVENT_CHECK_ENERGY_TANTRUM:
 if (me->GetPower(POWER_ENERGY) >= 100)
 {
 ScheduleSpells();
 DoCast(SPELL_TANTRUM_INITIAL);
 me->SetReactState(REACT_PASSIVE);
 me->GetMotionMaster()->MovePoint(POINT_TANTRUM_START_RND_MOVEMENT, me->GetHomePosition());
 }
 events.Repeat(500ms);
 break;
 default:
 break;
 }
 }
private:
 ObjectGuid _fetidMaggotGuid;
};
 
// 132051 - Blood Tick
struct npc_cragmaw_blood_tick : public ScriptedAI
{
 npc_cragmaw_blood_tick(Creature* creature) : ScriptedAI(creature) { }
 
 void JustAppeared() override
 {
 Creature* cragmaw = me->GetInstanceScript()->GetCreature(DATA_CRAGMAW_THE_INFESTED);
 if (!cragmaw || !cragmaw->IsAIEnabled())
 return;
 
 cragmaw->AI()->JustSummoned(me);
 DoZoneInCombat();
 }
 
 void JustEngagedWith(Unit* /*who*/) override
 {
 _events.ScheduleEvent(EVENT_SERRATED_FANGS, 1s);
 }
 
 void UpdateAI(uint32 diff) override
 {
 if (!UpdateVictim())
 return;
 
 _events.Update(diff);
 
 if (me->HasUnitState(UNIT_STATE_CASTING) || me->HasUnitState(UNIT_STATE_STUNNED))
 return;
 
 switch (_events.ExecuteEvent())
 {
 case EVENT_SERRATED_FANGS:
 DoCastVictim(SPELL_SERRATED_FANGS);
 _events.ScheduleEvent(EVENT_SERRATED_FANGS, 6s);
 break;
 default:
 break;
 }
 }
private:
 EventMap _events;
};
 
// 271775 - Tantrum Energy Bar (periodic)
class spell_cragmaw_power_energize_tantrum : public AuraScript
{
 void HandlePeriodic(AuraEffect const* /*aurEff*/)
 {
 Unit* target = GetTarget();
 target->SetPower(POWER_ENERGY, target->GetPower(POWER_ENERGY) + 2);
 }
 
 void Register() override
 {
 OnEffectPeriodic += AuraEffectPeriodicFn(spell_cragmaw_power_energize_tantrum::HandlePeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
 }
};
 
// 260411 - Summon Larva
class spell_cragmaw_summon_larva : public AuraScript
{
 void OnRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
 {
 if (Creature* creature = GetTarget()->ToCreature())
 creature->DespawnOrUnsummon(300ms);
 }
 
 void Register() override
 {
 AfterEffectRemove += AuraEffectRemoveFn(spell_cragmaw_summon_larva::OnRemove, EFFECT_0, SPELL_AURA_AREA_TRIGGER, AURA_EFFECT_HANDLE_REAL);
 }
};
 
// 260418 - Destroy Larva
struct at_cragmaw_destroy_larva : AreaTriggerAI
{
 at_cragmaw_destroy_larva(AreaTrigger* areatrigger) : AreaTriggerAI(areatrigger) { }
 
 void OnUnitEnter(Unit* unit) override
 {
 if (!unit->IsPlayer())
 return;
 
 at->GetCaster()->CastSpell(nullptr, SPELL_DESTROY_LARVA, true);
 }
};
 
// 260416 - Metamorphosis
class spell_cragmaw_larva_metamorphosis : public AuraScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo(
 {
 SPELL_SUMMON_BLOOD_TICK,
 SPELL_SUMMON_BLOOD_TICK_VISUAL,
 SPELL_METAMORPHOSIS_2
 });
 }
 
 void HandlePeriodic(AuraEffect const* aurEff)
 {
 if (aurEff->GetTickNumber() == aurEff->GetTotalTicks() - 2)
 GetTarget()->CastSpell(nullptr, SPELL_METAMORPHOSIS_2, true);
 }
 
 void OnRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
 {
 if (GetTargetApplication()->GetRemoveMode() != AURA_REMOVE_BY_EXPIRE)
 return;
 
 Unit* target = GetTarget();
 target->CastSpell(nullptr, SPELL_SUMMON_BLOOD_TICK_VISUAL, true);
 target->CastSpell(target->GetPosition(), SPELL_SUMMON_BLOOD_TICK, true);
 }
 
 void Register() override
 {
 OnEffectPeriodic += AuraEffectPeriodicFn(spell_cragmaw_larva_metamorphosis::HandlePeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY);
 AfterEffectRemove += AuraEffectRemoveFn(spell_cragmaw_larva_metamorphosis::OnRemove, EFFECT_0, SPELL_AURA_PERIODIC_DUMMY, AURA_EFFECT_HANDLE_REAL);
 }
};
 
// 278641 - Blood Burst
class spell_cragmaw_blood_burst : public AuraScript
{
 void OnRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
 {
 Unit* target = GetTarget();
 target->CastSpell(target, SPELL_BLOOD_BURST_DAMAGE, true);
 }
 
 void Register() override
 {
 AfterEffectRemove += AuraEffectRemoveFn(spell_cragmaw_blood_burst::OnRemove, EFFECT_0, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_REAL);
 }
};
 
void AddSC_boss_cragmaw_the_infested()
{
 // Creature
 RegisterUnderrotCreatureAI(boss_cragmaw_the_infested);
 RegisterUnderrotCreatureAI(npc_cragmaw_blood_tick);
 
 // Spells
 RegisterSpellScript(spell_cragmaw_power_energize_tantrum);
 RegisterSpellScript(spell_cragmaw_larva_metamorphosis);
 RegisterSpellScript(spell_cragmaw_blood_burst);
 RegisterSpellScript(spell_cragmaw_summon_larva);
 
 // AreaTrigger
 RegisterAreaTriggerAI(at_cragmaw_destroy_larva);
}