Core/Unit: Abide UNIT_FLAG2_DISABLE_TURN on creatures.

Port From (https://github.com/TrinityCore/TrinityCore/commit/ac8ff492744e65437fc906372058a0b29147af3f)

Source/Game/Entities/Creature/Creature.cs

@@ -519,6 +519,9 @@ namespace Game.Entities
                     if (m_shouldReacquireTarget && !IsFocusing(null, true))
                     {
                         SetTarget(m_suppressedTarget);
+
+                        if (!HasUnitFlag2(UnitFlags2.DisableTurn))
+                        {
                             if (!m_suppressedTarget.IsEmpty())
                             {
                                 WorldObject objTarget = Global.ObjAccessor.GetWorldObject(this, m_suppressedTarget);
@@ -527,6 +530,8 @@ namespace Game.Entities
                             }
                             else
                                 SetFacingTo(m_suppressedOrientation);
+                        }
+
                         m_shouldReacquireTarget = false;
                     }
 
@@ -2979,18 +2984,22 @@ namespace Game.Entities
                 }
             }
 
-            bool canTurnDuringCast = !focusSpell.GetSpellInfo().HasAttribute(SpellAttr5.DontTurnDuringCast);
+            bool noTurnDuringCast = spellInfo.HasAttribute(SpellAttr5.DontTurnDuringCast);
+
+            if (!HasUnitFlag2(UnitFlags2.DisableTurn))
+            {
                 // Face the target - we need to do this before the unit state is modified for no-turn spells
                 if (target)
                     SetFacingToObject(target, false);
-            else if (!canTurnDuringCast)
+                else if (!noTurnDuringCast)
                 {
                     Unit victim = GetVictim();
                     if (victim)
                         SetFacingToObject(victim, false); // ensure server-side orientation is correct at beginning of cast
                 }
+            }
 
-            if (!canTurnDuringCast)
+            if (!noTurnDuringCast)
                 AddUnitState(UnitState.CannotTurn);
         }
 
@@ -3028,7 +3037,7 @@ namespace Game.Entities
             if (focusSpell && focusSpell != _focusSpell)
                 return;
 
-            if (IsPet())// player pets do not use delay system
+            if (IsPet() && !HasUnitFlag2(UnitFlags2.DisableTurn))// player pets do not use delay system
             {
                 SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.Target), m_suppressedTarget);
                 if (!m_suppressedTarget.IsEmpty())

Source/Game/Entities/Unit/Unit.Combat.cs

@@ -517,7 +517,7 @@ namespace Game.Entities
             if (attType != WeaponAttackType.BaseAttack && attType != WeaponAttackType.OffAttack)
                 return;
 
-            if (IsTypeId(TypeId.Unit) && !HasUnitFlag(UnitFlags.PlayerControlled))
+            if (IsTypeId(TypeId.Unit) && !HasUnitFlag(UnitFlags.PlayerControlled) && !HasUnitFlag2(UnitFlags2.DisableTurn))
                 SetFacingToObject(victim, false); // update client side facing to face the target (prevents visual glitches when casting untargeted spells)
 
             // melee attack spell casted at main hand attack only - no normal melee dmg dealt
@@ -600,7 +600,7 @@ namespace Game.Entities
             if (attType != WeaponAttackType.BaseAttack && attType != WeaponAttackType.OffAttack)
                 return;                                             // ignore ranged case
 
-            if (IsTypeId(TypeId.Unit) && !HasUnitFlag(UnitFlags.PlayerControlled))
+            if (IsTypeId(TypeId.Unit) && !HasUnitFlag(UnitFlags.PlayerControlled) && !HasUnitFlag2(UnitFlags2.DisableTurn))
                 SetFacingToObject(victim, false); // update client side facing to face the target (prevents visual glitches when casting untargeted spells)
 
             CalcDamageInfo damageInfo = new();

sql/updates/world/master/2021_05_16_13_world_2018_01_10_00_world.sql

@@ -0,0 +1,2 @@
+-- 
+UPDATE `creature_template` SET `unit_flags2` = `unit_flags2`|0x8000 WHERE `entry` IN (32930,33909);