Scripts/Anniversary: Implement Doomwalker encounter (#30591)

Co-authored-by: Shauren <shauren.trinity@gmail.com>

2 files changed, 171 insertions, 0 deletions

diff --git a/src/server/scripts/Events/Anniversary/boss_doomwalker_anniversary.cpp b/src/server/scripts/Events/Anniversary/boss_doomwalker_anniversary.cpp
new file mode 100644
index 00000000000..70a07fce9a1
--- /dev/null
+++ b/src/server/scripts/Events/Anniversary/boss_doomwalker_anniversary.cpp
@@ -0,0 +1,165 @@
+/*
+ * 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 "MovementDefines.h"
+#include "ScriptMgr.h"
+#include "ScriptedCreature.h"
+
+enum DoomwalkerSpells
+{
+    SPELL_SUMMON_OVERRUN_TARGET       = 32632, // Serverside
+    SPELL_OVERRUN_TARGET_SPAWN        = 32634, // Serverside
+    SPELL_OVERRUN_TARGET_SPAWN_EFFECT = 32635, // Serverside
+    SPELL_OVERRUN                     = 32636,
+    SPELL_OVERRUN_DAMAGE              = 32637,
+    SPELL_LIGHTNING_WRATH             = 33665,
+    SPELL_FRENZY                      = 33653,
+    SPELL_CRUSH_ARMOR                 = 33661,
+    SPELL_EARTHQUAKE                  = 326405,
+    SPELL_KNOCKDOWN                   = 13360
+};
+
+enum DoomwalkerTexts
+{
+    SAY_AGGRO       = 0,
+    SAY_EARTHQUAKE  = 1,
+    SAY_OVERRUN     = 2,
+    SAY_KILL        = 3,
+    SAY_FRENZY      = 4,
+    SAY_DEATH       = 5
+};
+
+enum DoomwalkerEvents
+{
+    EVENT_OVERRUN         = 1,
+    EVENT_CRUSH_ARMOR,
+    EVENT_LIGHTNING_WRATH,
+    EVENT_EARTHQUAKE
+};
+
+enum DoomwalkerMisc
+{
+    POINT_OVERRUN         = 0,
+    NPC_OVERRUN_TARGET    = 18665
+};
+
+// 167749 - Doomwalker
+struct boss_doomwalker_anniversary : public WorldBossAI
+{
+    using WorldBossAI::WorldBossAI;
+
+    void JustDied(Unit* killer) override
+    {
+        WorldBossAI::JustDied(killer);
+        Talk(SAY_DEATH);
+    }
+
+    void KilledUnit(Unit* victim) override
+    {
+        if (victim->GetTypeId() == TYPEID_PLAYER)
+            Talk(SAY_KILL);
+    }
+
+    void JustEngagedWith(Unit* who) override
+    {
+        WorldBossAI::JustEngagedWith(who);
+        Talk(SAY_AGGRO);
+
+        events.ScheduleEvent(EVENT_OVERRUN, 15s, 40s);
+        events.ScheduleEvent(EVENT_EARTHQUAKE, 30s, 55s);
+        events.ScheduleEvent(EVENT_LIGHTNING_WRATH, 7s, 27s);
+        events.ScheduleEvent(EVENT_CRUSH_ARMOR, 10s, 25s);
+    }
+
+    void DamageTaken(Unit* /*attacker*/, uint32& damage, DamageEffectType /*damageType*/, SpellInfo const* /*spellInfo*/) override
+    {
+        if (me->HealthBelowPctDamaged(20, damage))
+        {
+            Talk(SAY_FRENZY);
+            DoCastSelf(SPELL_FRENZY);
+        }
+    }
+
+    void MovementInform(uint32 type, uint32 id) override
+    {
+        if (type == POINT_MOTION_TYPE && id == POINT_OVERRUN)
+        {
+            me->SetReactState(REACT_AGGRESSIVE);
+            me->RemoveAurasDueToSpell(SPELL_OVERRUN);
+
+            if (Creature* overrunTarget = me->FindNearestCreature(NPC_OVERRUN_TARGET, 50.0f))
+                overrunTarget->DespawnOrUnsummon();
+        }
+    }
+
+    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_OVERRUN:
+                {
+                    DoCastSelf(SPELL_SUMMON_OVERRUN_TARGET);
+                    me->SetReactState(REACT_PASSIVE);
+                    Talk(SAY_OVERRUN);
+                    DoCastSelf(SPELL_OVERRUN);
+                    events.ScheduleEvent(EVENT_OVERRUN, 25s, 40s);
+                    break;
+                }
+                case EVENT_EARTHQUAKE:
+                {
+                    Talk(SAY_EARTHQUAKE);
+                    DoCastSelf(SPELL_EARTHQUAKE);
+                    events.ScheduleEvent(EVENT_EARTHQUAKE, 30s, 55s);
+                    break;
+                }
+                case EVENT_LIGHTNING_WRATH:
+                {
+                    if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 0.0f, true))
+                        DoCast(target, SPELL_LIGHTNING_WRATH);
+                    events.ScheduleEvent(EVENT_LIGHTNING_WRATH, 7s, 27s);
+                    break;
+                }
+                case EVENT_CRUSH_ARMOR:
+                {
+                    DoCastVictim(SPELL_CRUSH_ARMOR);
+                    events.ScheduleEvent(EVENT_CRUSH_ARMOR, 10s, 25s);
+                    break;
+                }
+                default:
+                    break;
+            }
+
+            if (me->HasUnitState(UNIT_STATE_CASTING))
+                return;
+        }
+    }
+};
+
+void AddSC_boss_doomwalker_anniversary()
+{
+    RegisterCreatureAI(boss_doomwalker_anniversary);
+}
diff --git a/src/server/scripts/Events/events_script_loader.cpp b/src/server/scripts/Events/events_script_loader.cpp
index 78311bfa6ce..149e816ecba 100644
--- a/src/server/scripts/Events/events_script_loader.cpp
+++ b/src/server/scripts/Events/events_script_loader.cpp
@@ -29,6 +29,9 @@ void AddSC_event_pilgrims_bounty();
 void AddSC_event_winter_veil();
 void AddSC_event_zalazane_fall();
 
+// Anniversary
+void AddSC_boss_doomwalker_anniversary();
+
 // The name of this function should match:
 // void Add${NameOfDirectory}Scripts()
 void AddEventsScripts()
@@ -45,4 +48,7 @@ void AddEventsScripts()
     AddSC_event_pilgrims_bounty();
     AddSC_event_winter_veil();
     AddSC_event_zalazane_fall();
+
+    // Anniversary
+    AddSC_boss_doomwalker_anniversary();
 }