Fix fleeing speed to 66% run speed

Port From (https://github.com/TrinityCore/TrinityCore/commit/d095d4afe95125bba64312025528a2c4aab157e0)

Source/Game/Entities/Creature/Creature.cs

@@ -713,7 +713,6 @@ namespace Game.Entities
                 var creature = searcher.GetTarget();
 
                 SetNoSearchAssistance(true);
-                UpdateSpeed(UnitMoveType.Run);
 
                 if (!creature)
                     SetControlled(true, UnitState.Fleeing);
@@ -1810,13 +1809,8 @@ namespace Game.Entities
 
                 SetMountDisplayId(0); // if creature is mounted on a virtual mount, remove it at death
 
-                SetActive(false);
-
-                if (HasSearchedAssistance())
-                {
-                    SetNoSearchAssistance(false);
-                    UpdateSpeed(UnitMoveType.Run);
-                }
+                SetActive(false);                
+                SetNoSearchAssistance(false);
 
                 //Dismiss group if is leader
                 if (m_formation != null && m_formation.GetLeader() == this)

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

@@ -400,16 +400,8 @@ namespace Game.Entities
             // reset only at real combat stop
             Creature creature = ToCreature();
             if (creature != null)
-            {
                 creature.SetNoCallAssistance(false);
 
-                if (creature.HasSearchedAssistance())
-                {
-                    creature.SetNoSearchAssistance(false);
-                    UpdateSpeed(UnitMoveType.Run);
-                }
-            }
-
             SendMeleeAttackStop(victim);
             return true;
         }

Source/Game/Entities/Unit/Unit.Movement.cs

@@ -543,10 +543,6 @@ namespace Game.Entities
             Creature creature = ToCreature();
             if (creature != null)
             {
-                // for creature case, we check explicit if mob searched for assistance
-                if (ToCreature().HasSearchedAssistance())
-                    speed *= 0.66f;                                 // best guessed value, so this will be 33% reduction. Based off initial speed, mob can then "run", "walk fast" or "walk".
-
                 if (creature.HasUnitTypeMask(UnitTypeMask.Minion) && !creature.IsInCombat())
                 {
                     if (GetMotionMaster().GetCurrentMovementGeneratorType() == MovementGeneratorType.Follow)

Source/Game/Movement/Generators/HomeMovement.cs

@@ -36,6 +36,8 @@ namespace Game.AI
             RemoveFlag(MovementGeneratorFlags.InitializationPending | MovementGeneratorFlags.Deactivated);
             AddFlag(MovementGeneratorFlags.Initialized);
 
+            owner.SetNoSearchAssistance(false);
+
             SetTargetLocation(owner);
         }
 

Source/Game/Movement/Generators/PointMovement.cs

@@ -185,7 +185,7 @@ namespace Game.Movement
 
     public class AssistanceMovementGenerator : PointMovementGenerator<Creature>
     {
-        public AssistanceMovementGenerator(uint id, float x, float y, float z, float speed = 0.0f) : base(id, x, y, z, true, speed) { }
+        public AssistanceMovementGenerator(uint id, float x, float y, float z) : base(id, x, y, z, true) { }
 
         public override void Finalize(Unit owner, bool active, bool movementInform)
         {

Source/Game/Movement/MotionMaster.cs

@@ -914,12 +914,15 @@ namespace Game.Movement
 
         public void MoveSeekAssistance(float x, float y, float z)
         {
-            if (_owner.IsCreature())
+            Creature creature = _owner.ToCreature();
+            if (creature != null)
             {
-                _owner.AttackStop();
-                _owner.CastStop();
-                _owner.ToCreature().SetReactState(ReactStates.Passive);
-                Add(new AssistanceMovementGenerator(EventId.AssistMove, x, y, z, _owner.GetSpeed(UnitMoveType.Run) * 0.66f));
+                Log.outDebug(LogFilter.Movement, $"MotionMaster::MoveSeekAssistance: '{creature.GetGUID()}', seeks assistance (X: {x}, Y: {y}, Z: {z})");
+                creature.AttackStop();
+                creature.CastStop();
+                creature.DoNotReacquireSpellFocusTarget();
+                creature.SetReactState(ReactStates.Passive);
+                Add(new AssistanceMovementGenerator(EventId.AssistMove, x, y, z));
             }
             else
                 Log.outError(LogFilter.Server, $"MotionMaster::MoveSeekAssistance: {_owner.GetGUID()}, attempted to seek assistance");

Source/Game/Movement/MoveSplineInit.cs

@@ -122,6 +122,10 @@ namespace Game.Movement
                     moveFlagsForSpeed &= ~MovementFlag.Walking;
 
                 args.velocity = unit.GetSpeed(SelectSpeedType(moveFlagsForSpeed));
+                Creature creature = unit.ToCreature();
+                if (creature != null)
+                    if (creature.HasSearchedAssistance())
+                        args.velocity *= 0.66f;
             }
 
             // limit the speed in the same way the client does