boss_shazzrah.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 "Containers.h"
#include "molten_core.h"
#include "ScriptedCreature.h"
#include "SpellScript.h"
 
enum Spells
{
 SPELL_ARCANE_EXPLOSION = 19712,
 SPELL_SHAZZRAH_CURSE = 19713,
 SPELL_MAGIC_GROUNDING = 19714,
 SPELL_COUNTERSPELL = 19715,
 SPELL_SHAZZRAH_GATE_DUMMY = 23138, // Teleports to and attacks a random target.
 SPELL_SHAZZRAH_GATE = 23139,
};
 
enum Events
{
 EVENT_ARCANE_EXPLOSION = 1,
 EVENT_ARCANE_EXPLOSION_TRIGGERED = 2,
 EVENT_SHAZZRAH_CURSE = 3,
 EVENT_MAGIC_GROUNDING = 4,
 EVENT_COUNTERSPELL = 5,
 EVENT_SHAZZRAH_GATE = 6,
};
 
struct boss_shazzrah : public BossAI
{
 boss_shazzrah(Creature* creature) : BossAI(creature, BOSS_SHAZZRAH) { }
 
 void JustEngagedWith(Unit* target) override
 {
 BossAI::JustEngagedWith(target);
 events.ScheduleEvent(EVENT_ARCANE_EXPLOSION, 6s);
 events.ScheduleEvent(EVENT_SHAZZRAH_CURSE, 10s);
 events.ScheduleEvent(EVENT_MAGIC_GROUNDING, 24s);
 events.ScheduleEvent(EVENT_COUNTERSPELL, 15s);
 events.ScheduleEvent(EVENT_SHAZZRAH_GATE, 45s);
 }
 
 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_ARCANE_EXPLOSION:
 DoCastVictim(SPELL_ARCANE_EXPLOSION);
 events.ScheduleEvent(EVENT_ARCANE_EXPLOSION, 4s, 7s);
 break;
 // Triggered subsequent to using "Gate of Shazzrah".
 case EVENT_ARCANE_EXPLOSION_TRIGGERED:
 DoCastVictim(SPELL_ARCANE_EXPLOSION);
 break;
 case EVENT_SHAZZRAH_CURSE:
 if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 0.0f, true, true, -SPELL_SHAZZRAH_CURSE))
 DoCast(target, SPELL_SHAZZRAH_CURSE);
 events.ScheduleEvent(EVENT_SHAZZRAH_CURSE, 25s, 30s);
 break;
 case EVENT_MAGIC_GROUNDING:
 DoCast(me, SPELL_MAGIC_GROUNDING);
 events.ScheduleEvent(EVENT_MAGIC_GROUNDING, 35s);
 break;
 case EVENT_COUNTERSPELL:
 DoCastVictim(SPELL_COUNTERSPELL);
 events.ScheduleEvent(EVENT_COUNTERSPELL, 16s, 20s);
 break;
 case EVENT_SHAZZRAH_GATE:
 ResetThreatList();
 DoCastAOE(SPELL_SHAZZRAH_GATE_DUMMY);
 events.ScheduleEvent(EVENT_ARCANE_EXPLOSION_TRIGGERED, 2s);
 events.RescheduleEvent(EVENT_ARCANE_EXPLOSION, 3s, 6s);
 events.ScheduleEvent(EVENT_SHAZZRAH_GATE, 45s);
 break;
 default:
 break;
 }
 
 if (me->HasUnitState(UNIT_STATE_CASTING))
 return;
 }
 }
};
 
// 23138 - Gate of Shazzrah
class spell_shazzrah_gate_dummy : public SpellScript
{
 bool Validate(SpellInfo const* /*spellInfo*/) override
 {
 return ValidateSpellInfo({ SPELL_SHAZZRAH_GATE });
 }
 
 void FilterTargets(std::list<WorldObject*>& targets)
 {
 if (targets.empty())
 return;
 
 WorldObject* target = Trinity::Containers::SelectRandomContainerElement(targets);
 targets.clear();
 targets.push_back(target);
 }
 
 void HandleScript(SpellEffIndex /*effIndex*/)
 {
 if (Unit* target = GetHitUnit())
 {
 target->CastSpell(GetCaster(), SPELL_SHAZZRAH_GATE, true);
 if (Creature* creature = GetCaster()->ToCreature())
 creature->AI()->AttackStart(target); // Attack the target which caster will teleport to.
 }
 }
 
 void Register() override
 {
 OnObjectAreaTargetSelect += SpellObjectAreaTargetSelectFn(spell_shazzrah_gate_dummy::FilterTargets, EFFECT_0, TARGET_UNIT_SRC_AREA_ENEMY);
 OnEffectHitTarget += SpellEffectFn(spell_shazzrah_gate_dummy::HandleScript, EFFECT_0, SPELL_EFFECT_DUMMY);
 }
};
 
void AddSC_boss_shazzrah()
{
 RegisterMoltenCoreCreatureAI(boss_shazzrah);
 RegisterSpellScript(spell_shazzrah_gate_dummy);
}