Core/Scripts: dynamic_spawning follow-up, I had forgotten JustRespawned existed.

Port From (https://github.com/TrinityCore/TrinityCore/commit/129dd7c9091d3fafc0f5e10b795224bc9418d006)

Source/Game/Entities/Creature/Creature.Fields.cs

@@ -70,7 +70,7 @@ namespace Game.Entities
 
         //Formation var
         CreatureGroup m_formation;
-        bool TriggerJustRespawned;
+        bool triggerJustAppeared;
         bool m_respawnCompatibilityMode;
 
         public uint[] m_spells = new uint[SharedConst.MaxCreatureSpells];

Source/Game/Entities/Creature/Creature.cs

@@ -44,6 +44,7 @@ namespace Game.Entities
             DefaultMovementType = MovementGeneratorType.Idle;
             m_regenHealth = true;
             m_meleeDamageSchoolMask = SpellSchoolMask.Normal;
+            triggerJustAppeared = true;
 
             RegenTimer = SharedConst.CreatureRegenInterval;
 
@@ -378,10 +379,10 @@ namespace Game.Entities
 
         public override void Update(uint diff)
         {
-            if (IsAIEnabled && TriggerJustRespawned)
+            if (IsAIEnabled && triggerJustAppeared && m_deathState == DeathState.Alive)
             {
-                TriggerJustRespawned = false;
-                GetAI().JustRespawned();
+                triggerJustAppeared = false;
+                GetAI().JustAppeared();
                 if (VehicleKit != null)
                     VehicleKit.Reset();
             }
@@ -1736,13 +1737,10 @@ namespace Game.Entities
                     //Re-initialize reactstate that could be altered by movementgenerators
                     InitializeReactState();
 
-                    //Call AI respawn virtual function//Call AI respawn virtual function
-                    if (IsAIEnabled)
-                    {
-                        //reset the AI to be sure no dirty or uninitialized values will be used till next tick
+                    if (IsAIEnabled) // reset the AI to be sure no dirty or uninitialized values will be used till next tick
                         GetAI().Reset();
-                        TriggerJustRespawned = true;//delay event to next tick so all creatures are created on the map before processing
-                    }
+
+                    triggerJustAppeared = true;
 
                     uint poolid = GetSpawnId() != 0 ? Global.PoolMgr.IsPartOfAPool<Creature>(GetSpawnId()) : 0;
                     if (poolid != 0)

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

@@ -16,16 +16,16 @@
  */
 
 using Framework.Constants;
+using Framework.Dynamic;
 using Framework.GameMath;
 using Game.BattleGrounds;
 using Game.DataStorage;
 using Game.Maps;
 using Game.Movement;
 using Game.Networking.Packets;
+using Game.Spells;
 using System;
 using System.Collections.Generic;
-using Game.Spells;
-using Framework.Dynamic;
 
 namespace Game.Entities
 {