fix(Scripts/ShadowLabyrinth): Murmur's Touch (#16600)

data/sql/updates/pending_db_world/rev_1687388954869141000.sql

@@ -0,0 +1,4 @@
+--
+DELETE FROM `spell_script_names` WHERE `ScriptName` IN ('spell_murmur_touch', 'spell_shockwave_knockback');
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(33686, 'spell_shockwave_knockback');

src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_murmur.cpp

@@ -208,25 +208,27 @@ class spell_murmur_thundering_storm : public SpellScript
     }
 };
 
-// 33711/38794 - Murmur's Touch
+// 33686 - Shockwave (Murmur's Touch final explosion)
-class spell_murmur_touch : public AuraScript
+class spell_shockwave_knockback : public SpellScript
 {
-    PrepareAuraScript(spell_murmur_touch);
+    PrepareSpellScript(spell_shockwave_knockback);
 
-    void HandleAfterRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
+    bool Validate(SpellInfo const* /*spellInfo*/) override
     {
-        if (GetTargetApplication()->GetRemoveMode() == AURA_REMOVE_BY_EXPIRE)
+        return ValidateSpellInfo({ SPELL_SHOCKWAVE_SERVERSIDE });
+    }
+
+    void HandleOnHit()
+    {
+        if (Unit* target = GetHitUnit())
         {
-            if (GetTarget())
+            target->CastSpell(target, SPELL_SHOCKWAVE_SERVERSIDE, true);
-            {
-                GetTarget()->CastSpell(GetTarget(), SPELL_SHOCKWAVE_SERVERSIDE, true);
-            }
         }
     }
 
     void Register() override
     {
-        AfterEffectRemove += AuraEffectRemoveFn(spell_murmur_touch::HandleAfterRemove, EFFECT_0, SPELL_AURA_PERIODIC_TRIGGER_SPELL, AURA_EFFECT_HANDLE_REAL);
+        OnHit += SpellHitFn(spell_shockwave_knockback::HandleOnHit);
     }
 };
 
@@ -252,6 +254,6 @@ void AddSC_boss_murmur()
 {
     RegisterShadowLabyrinthCreatureAI(boss_murmur);
     RegisterSpellScript(spell_murmur_thundering_storm);
-    RegisterSpellScript(spell_murmur_touch);
+    RegisterSpellScript(spell_shockwave_knockback);
     RegisterSpellScript(spell_murmur_sonic_boom_effect);
 }