Core/Creatures: Implemented CREATURE_STATIC_FLAG_3_NO_THREAT_FEEDBACK

Port From (https://github.com/TrinityCore/TrinityCore/commit/3fd1a2b78c8791576679e93ce1d43038db2212c5)

Source/Game/Combat/ThreatManager.cs

@@ -669,6 +669,10 @@ namespace Game.Combat
 
         void SendClearAllThreatToClients()
         {
+            Creature owner = _owner.ToCreature();
+            if (owner != null && owner.IsThreatFeedbackDisabled())
+                return;
+
             ThreatClear threatClear = new();
             threatClear.UnitGUID = _owner.GetGUID();
             _owner.SendMessageToSet(threatClear, false);
@@ -676,6 +680,10 @@ namespace Game.Combat
 
         public void SendRemoveToClients(Unit victim)
         {
+            Creature owner = _owner.ToCreature();
+            if (owner != null && owner.IsThreatFeedbackDisabled())
+                return;
+
             ThreatRemove threatRemove = new();
             threatRemove.UnitGUID = _owner.GetGUID();
             threatRemove.AboutGUID = victim.GetGUID();
@@ -684,6 +692,10 @@ namespace Game.Combat
 
         void SendThreatListToClients(bool newHighest)
         {
+            Creature owner = _owner.ToCreature();
+            if (owner != null && owner.IsThreatFeedbackDisabled())
+                return;
+
             void fillSharedPacketDataAndSend(dynamic packet)
             {
                 packet.UnitGUID = _owner.GetGUID();
@@ -970,7 +982,8 @@ namespace Game.Combat
         public void ModifyThreatByPercent(int percent)
         {
             if (percent != 0)
-                ScaleThreat(0.01f * (100f + percent)); }
+                ScaleThreat(0.01f * (100f + percent));
+        }
 
         public void ListNotifyChanged() { _mgr.ListNotifyChanged(); }
 

Source/Game/Entities/Creature/Creature.cs

@@ -3352,7 +3352,10 @@ namespace Game.Entities
         public override void SetImmuneToPC(bool apply) { SetImmuneToPC(apply, HasReactState(ReactStates.Passive)); }
         public override void SetImmuneToNPC(bool apply) { SetImmuneToNPC(apply, HasReactState(ReactStates.Passive)); }
 
-        void SetUnkillable(bool unkillable) { _staticFlags.ApplyFlag(CreatureStaticFlags.Unkillable, unkillable); }
+        public bool IsThreatFeedbackDisabled() { return _staticFlags.HasFlag(CreatureStaticFlags3.NoThreatFeedback); }
+        public void SetNoThreatFeedback(bool noThreatFeedback) { _staticFlags.ApplyFlag(CreatureStaticFlags3.NoThreatFeedback, noThreatFeedback); }
+
+        public void SetUnkillable(bool unkillable) { _staticFlags.ApplyFlag(CreatureStaticFlags.Unkillable, unkillable); }
 
         public bool IsInEvadeMode() { return HasUnitState(UnitState.Evade); }
         public bool IsEvadingAttacks() { return IsInEvadeMode() || CanNotReachTarget(); }