boss_erekem.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 "ScriptMgr.h"
#include "InstanceScript.h"
#include "MotionMaster.h"
#include "ObjectAccessor.h"
#include "ScriptedCreature.h"
#include "violet_hold.h"
 
enum ErekemTexts
{
    SAY_AGGRO                 = 0,
    SAY_SLAY                  = 1,
    SAY_DEATH                 = 2,
    SAY_SPAWN                 = 3,
    SAY_ADD_KILLED            = 4,
    SAY_BOTH_ADDS_KILLED      = 5
};
 
enum ErekemSpells
{
    SPELL_BLOODLUST           = 54516,
    SPELL_BREAK_BONDS         = 59463,
    SPELL_CHAIN_HEAL          = 54481,
    SPELL_EARTH_SHIELD        = 54479,
    SPELL_EARTH_SHOCK         = 54511,
    SPELL_LIGHTNING_BOLT      = 53044,
    SPELL_STORMSTRIKE         = 51876,
    SPELL_WINDFURY            = 54493
};
 
enum ErekemActions
{
    ACTION_EREKEM_GUARD_DIED = 1
};
 
// 29315 - Erekem
// 32226 - Arakkoa Windwalker
struct boss_erekem : public BossAI
{
    boss_erekem(Creature* creature) : BossAI(creature, DATA_EREKEM)
    {
        Initialize();
    }
 
    void Initialize()
    {
        _phase = 0;
        _addsKilled = 0;
    }
 
    void Reset() override
    {
        Initialize();
        BossAI::Reset();
        me->SetCanDualWield(false);
    }
 
    void JustEngagedWith(Unit* who) override
    {
        BossAI::JustEngagedWith(who);
        Talk(SAY_AGGRO);
        DoCast(me, SPELL_EARTH_SHIELD);
    }
 
    void JustReachedHome() override
    {
        BossAI::JustReachedHome();
        instance->SetData(DATA_HANDLE_CELLS, DATA_EREKEM);
    }
 
    void DoAction(int32 actionId) override
    {
        switch (actionId)
        {
            case ACTION_EREKEM_GUARD_DIED:
                if (!me->IsAlive())
                    break;
 
                if (_addsKilled++ == 0)
                    Talk(SAY_ADD_KILLED);
                else
                    Talk(SAY_BOTH_ADDS_KILLED);
                break;
            default:
                break;
        }
    }
 
    void KilledUnit(Unit* victim) override
    {
        if (victim->GetTypeId() == TYPEID_PLAYER)
            Talk(SAY_SLAY);
    }
 
    void JustDied(Unit* /*killer*/) override
    {
        Talk(SAY_DEATH);
        _JustDied();
    }
 
    bool CheckGuardAuras(Creature* guard) const
    {
        static uint32 const MechanicImmunityList =
              (1 << MECHANIC_SNARE)
            | (1 << MECHANIC_ROOT)
            | (1 << MECHANIC_FEAR)
            | (1 << MECHANIC_STUN)
            | (1 << MECHANIC_SLEEP)
            | (1 << MECHANIC_CHARM)
            | (1 << MECHANIC_SAPPED)
            | (1 << MECHANIC_HORROR)
            | (1 << MECHANIC_POLYMORPH)
            | (1 << MECHANIC_DISORIENTED)
            | (1 << MECHANIC_FREEZE)
            | (1 << MECHANIC_TURN);
 
        static std::list<AuraType> const AuraImmunityList =
        {
            SPELL_AURA_MOD_STUN,
            SPELL_AURA_MOD_DECREASE_SPEED,
            SPELL_AURA_MOD_ROOT,
            SPELL_AURA_MOD_CONFUSE,
            SPELL_AURA_MOD_FEAR
        };
 
        if (guard->HasAuraWithMechanic(MechanicImmunityList))
            return true;
 
        for (AuraType type : AuraImmunityList)
            if (guard->HasAuraType(type))
                return true;
 
        return false;
    }
 
    bool CheckGuardAlive() const
    {
        for (uint32 i = DATA_EREKEM_GUARD_1; i <= DATA_EREKEM_GUARD_2; ++i)
        {
            if (Creature* guard = ObjectAccessor::GetCreature(*me, instance->GetGuidData(i)))
                if (guard->IsAlive())
                    return true;
        }
 
        return false;
    }
 
    Unit* GetChainHealTarget() const
    {
        if (HealthBelowPct(85))
            return me;
 
        for (uint32 i = DATA_EREKEM_GUARD_1; i <= DATA_EREKEM_GUARD_2; ++i)
        {
            if (Creature* guard = ObjectAccessor::GetCreature(*me, instance->GetGuidData(i)))
                if (guard->IsAlive() && !guard->HealthAbovePct(75))
                    return guard;
        }
 
        return nullptr;
    }
 
    void UpdateAI(uint32 diff) override
    {
        if (!UpdateVictim())
            return;
 
        if (_phase == 0 && !CheckGuardAlive())
        {
            _phase = 1;
            me->SetCanDualWield(true);
            DoCast(me, SPELL_WINDFURY, true);
        }
 
        scheduler.Update(diff, [this]
        {
            if (_phase == 1)
                DoSpellAttackIfReady(SPELL_STORMSTRIKE);
        });
    }
 
    void ScheduleTasks() override
    {
        scheduler.Schedule(20s, [this](TaskContext& task)
        {
            if (Unit* ally = DoSelectLowestHpFriendly(30.0f))
                DoCast(ally, SPELL_EARTH_SHIELD);
 
            task.Repeat(20s);
        });
 
        scheduler.Schedule(2s, [this](TaskContext& task)
        {
            DoCast(SPELL_BLOODLUST);
            task.Repeat(35s, 45s);
        });
 
        scheduler.Schedule(2s, [this](TaskContext& task)
        {
            if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 40.0f))
                DoCast(target, SPELL_LIGHTNING_BOLT);
 
            task.Repeat(2500ms);
        });
 
        scheduler.Schedule(10s, [this](TaskContext& task)
        {
            if (Unit* ally = DoSelectLowestHpFriendly(40.0f))
                DoCast(ally, SPELL_CHAIN_HEAL);
 
            if (!CheckGuardAlive())
                task.Repeat(3s);
            else
                task.Repeat(8s, 11s);
        });
 
        scheduler.Schedule(2s, 8s, [this](TaskContext& task)
        {
            DoCastVictim(SPELL_EARTH_SHOCK);
            task.Repeat(8s, 13s);
        });
 
        scheduler.Schedule(0s, [this](TaskContext& task)
        {
            for (uint32 i = DATA_EREKEM_GUARD_1; i <= DATA_EREKEM_GUARD_2; ++i)
            {
                Creature* guard = ObjectAccessor::GetCreature(*me, instance->GetGuidData(i));
 
                if (guard && guard->IsAlive() && CheckGuardAuras(guard))
                {
                    DoCastAOE(SPELL_BREAK_BONDS);
                    task.Repeat(10s);
                    return;
                }
            }
            task.Repeat(500ms);
        });
    }
 
private:
    uint8 _phase;
    uint8 _addsKilled;
};
 
enum GuardSpells
{
    SPELL_GUSHING_WOUND                   = 39215,
    SPELL_HOWLING_SCREECH                 = 54462,
    SPELL_STRIKE                          = 14516
};
 
// 29395 - Erekem Guard
// 32228 - Arakkoa Talon Guard
struct npc_erekem_guard : public ScriptedAI
{
    npc_erekem_guard(Creature* creature) : ScriptedAI(creature)
    {
        scheduler.SetValidator([this]
        {
            return !me->HasUnitState(UNIT_STATE_CASTING);
        });
    }
 
    void Reset() override
    {
        scheduler.CancelAll();
    }
 
    void JustEngagedWith(Unit* /*who*/) override
    {
        ScheduledTasks();
        DoZoneInCombat();
    }
 
    void JustDied(Unit* /*killer*/) override
    {
        if (InstanceScript* instance = me->GetInstanceScript())
            if (Creature* erekem = instance->GetCreature(DATA_EREKEM))
                erekem->AI()->DoAction(ACTION_EREKEM_GUARD_DIED);
    }
 
    void UpdateAI(uint32 diff) override
    {
        if (!UpdateVictim())
            return;
 
        scheduler.Update(diff);
    }
 
    void ScheduledTasks()
    {
        scheduler.Schedule(4s, 8s, [this](TaskContext& task)
        {
            DoCastVictim(SPELL_STRIKE);
            task.Repeat(4s, 8s);
        });
 
        scheduler.Schedule(8s, 13s, [this](TaskContext& task)
        {
            DoCastAOE(SPELL_HOWLING_SCREECH);
            task.Repeat(8s, 13s);
        });
 
        scheduler.Schedule(1s, 3s, [this](TaskContext& task)
        {
            DoCastVictim(SPELL_GUSHING_WOUND);
            task.Repeat(7s, 12s);
        });
    }
 
private:
    TaskScheduler scheduler;
};
 
void AddSC_boss_erekem()
{
    RegisterVioletHoldCreatureAI(boss_erekem);
    RegisterVioletHoldCreatureAI(npc_erekem_guard);
}