Core/Unit: Store charmer and charmed pointers on Unit directly, no more map lookups for Unit::GetCharmer and Unit::GetCharmed

Port From (https://github.com/TrinityCore/TrinityCore/commit/a5989dcee9150565e7f4b8e3f7a62a414a484a3f)

Source/Game/DungeonFinding/LFGManager.cs

@@ -1253,7 +1253,7 @@ namespace Game.DungeonFinding
                 error = LfgTeleportResult.Exhaustion;
             else if (player.GetVehicle())
                 error = LfgTeleportResult.OnTransport;
-            else if (!player.GetCharmGUID().IsEmpty())
+            else if (!player.GetCharmedGUID().IsEmpty())
                 error = LfgTeleportResult.ImmuneToSummons;
             else if (player.HasAura(9454)) // check Freeze debuff
                 error = LfgTeleportResult.NoReturnLocation;

Source/Game/Entities/Player/Player.cs

@@ -970,7 +970,7 @@ namespace Game.Entities
 
         public void StopCastingCharm()
         {
-            Unit charm = GetCharm();
+            Unit charm = GetCharmed();
             if (!charm)
                 return;
 
@@ -981,12 +981,12 @@ namespace Game.Entities
                 else if (charm.IsVehicle())
                     ExitVehicle();
             }
-            if (!GetCharmGUID().IsEmpty())
+            if (!GetCharmedGUID().IsEmpty())
                 charm.RemoveCharmAuras();
 
-            if (!GetCharmGUID().IsEmpty())
+            if (!GetCharmedGUID().IsEmpty())
             {
-                Log.outFatal(LogFilter.Player, "Player {0} (GUID: {1} is not able to uncharm unit (GUID: {2} Entry: {3}, Type: {4})", GetName(), GetGUID(), GetCharmGUID(), charm.GetEntry(), charm.GetTypeId());
+                Log.outFatal(LogFilter.Player, "Player {0} (GUID: {1} is not able to uncharm unit (GUID: {2} Entry: {3}, Type: {4})", GetName(), GetGUID(), GetCharmedGUID(), charm.GetEntry(), charm.GetTypeId());
                 if (!charm.GetCharmerGUID().IsEmpty())
                 {
                     Log.outFatal(LogFilter.Player, "Charmed unit has charmer guid {0}", charm.GetCharmerGUID());
@@ -1036,7 +1036,7 @@ namespace Game.Entities
         }
         public void PossessSpellInitialize()
         {
-            Unit charm = GetCharm();
+            Unit charm = GetCharmed();
             if (!charm)
                 return;
 

Source/Game/Entities/TemporarySummon.cs

@@ -383,7 +383,7 @@ namespace Game.Entities
             base.InitSummon();
 
             if (GetOwner().IsTypeId(TypeId.Player) && GetOwner().GetMinionGUID() == GetGUID()
-                && GetOwner().GetCharmGUID().IsEmpty())
+                && GetOwner().GetCharmedGUID().IsEmpty())
             {
                 GetOwner().ToPlayer().CharmSpellInitialize();
             }

Source/Game/Entities/Unit/Unit.Fields.cs

@@ -73,6 +73,8 @@ namespace Game.Entities
         //Charm
         public List<Unit> m_Controlled = new();
         List<Player> m_sharedVision = new();
+        Unit m_charmer; // Unit that is charming ME
+        Unit m_charmed; // Unit that is being charmed BY ME
         CharmInfo m_charmInfo;
         protected bool m_ControlledByPlayer;
         public ObjectGuid LastCharmerGUID { get; set; }

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

@@ -1335,7 +1335,7 @@ namespace Game.Entities
                 }
 
                 // if we have charmed npc, stun him also (everywhere)
-                Unit charm = player.GetCharm();
+                Unit charm = player.GetCharmed();
                 if (charm)
                     if (charm.GetTypeId() == TypeId.Unit)
                         charm.AddUnitFlag(UnitFlags.Stunned);
@@ -1383,7 +1383,7 @@ namespace Game.Entities
                     player.ResummonPetTemporaryUnSummonedIfAny();
 
                 // if we have charmed npc, remove stun also
-                Unit charm = player.GetCharm();
+                Unit charm = player.GetCharmed();
                 if (charm)
                     if (charm.GetTypeId() == TypeId.Unit && charm.HasUnitFlag(UnitFlags.Stunned) && !charm.HasUnitState(UnitState.Stunned))
                         charm.RemoveUnitFlag(UnitFlags.Stunned);

Source/Game/Entities/Unit/Unit.Pets.cs

@@ -235,7 +235,7 @@ namespace Game.Entities
 
                         SetMinionGUID(unit.GetGUID());
                         // show another pet bar if there is no charm bar
-                        if (GetTypeId() == TypeId.Player && GetCharmGUID().IsEmpty())
+                        if (GetTypeId() == TypeId.Player && GetCharmedGUID().IsEmpty())
                         {
                             if (unit.IsPet())
                                 ToPlayer().PetSpellInitialize();
@@ -501,7 +501,13 @@ namespace Game.Entities
             }
 
             if (!IsPlayer() || charmer.IsCreature())
-                GetAI().OnCharmed(false); // AI will potentially schedule a charm ai update
+            {
+                UnitAI charmedAI = GetAI();
+                if (charmedAI != null)
+                    charmedAI.OnCharmed(false); // AI will potentially schedule a charm ai update
+                else
+                    ScheduleAIChange();
+            }
 
             Player player = ToPlayer();
             if (player != null)
@@ -545,10 +551,8 @@ namespace Game.Entities
             {
                 if (IsTypeId(TypeId.Player))
                 {
-                    if (GetCharmGUID().IsEmpty())
+                    if (!SetCharmedData(charm))
-                        SetCharmGUID(charm.GetGUID());
+                        Log.outFatal(LogFilter.Unit, "Player {0} is trying to charm unit {1}, but it already has a charmed unit {2}", GetName(), charm.GetEntry(), GetCharmedGUID());
-                    else
-                        Log.outFatal(LogFilter.Unit, "Player {0} is trying to charm unit {1}, but it already has a charmed unit {2}", GetName(), charm.GetEntry(), GetCharmGUID());
 
                     charm.m_ControlledByPlayer = true;
                     // @todo maybe we can use this flag to check if controlled by player
@@ -560,9 +564,7 @@ namespace Game.Entities
                 // PvP, FFAPvP
                 charm.SetPvpFlags(GetPvpFlags());
 
-                if (charm.GetCharmGUID().IsEmpty())
+                if (!charm.SetCharmerData(this))
-                    charm.SetCharmerGUID(GetGUID());
-                else
                     Log.outFatal(LogFilter.Unit, "Unit {0} is being charmed, but it already has a charmer {1}", charm.GetEntry(), charm.GetCharmerGUID());
 
                 _isWalkingBeforeCharm = charm.IsWalking();
@@ -578,15 +580,11 @@ namespace Game.Entities
 
                 if (IsTypeId(TypeId.Player))
                 {
-                    if (GetCharmGUID() == charm.GetGUID())
+                    if (!ClearCharmedData(charm))
-                        SetCharmGUID(ObjectGuid.Empty);
+                        Log.outFatal(LogFilter.Unit, "Player {0} is trying to uncharm unit {1}, but it has another charmed unit {2}", GetName(), charm.GetEntry(), GetCharmedGUID());
-                    else
-                        Log.outFatal(LogFilter.Unit, "Player {0} is trying to uncharm unit {1}, but it has another charmed unit {2}", GetName(), charm.GetEntry(), GetCharmGUID());
                 }
 
-                if (charm.GetCharmerGUID() == GetGUID())
+                if (!charm.ClearCharmerData(this))
-                    charm.SetCharmerGUID(ObjectGuid.Empty);
-                else
                     Log.outFatal(LogFilter.Unit, "Unit {0} is being uncharmed, but it has another charmer {1}", charm.GetEntry(), charm.GetCharmerGUID());
 
                 Player player = charm.GetCharmerOrOwnerPlayerOrPlayerItself();
@@ -625,7 +623,7 @@ namespace Game.Entities
         public Unit GetFirstControlled()
         {
             // Sequence: charmed, pet, other guardians
-            Unit unit = GetCharm();
+            Unit unit = GetCharmed();
             if (!unit)
             {
                 ObjectGuid guid = GetMinionGUID();
@@ -665,8 +663,8 @@ namespace Game.Entities
                 Log.outFatal(LogFilter.Unit, "Unit {0} is not able to release its pet {1}", GetEntry(), GetPetGUID());
             if (!GetMinionGUID().IsEmpty())
                 Log.outFatal(LogFilter.Unit, "Unit {0} is not able to release its minion {1}", GetEntry(), GetMinionGUID());
-            if (!GetCharmGUID().IsEmpty())
+            if (!GetCharmedGUID().IsEmpty())
-                Log.outFatal(LogFilter.Unit, "Unit {0} is not able to release its charm {1}", GetEntry(), GetCharmGUID());
+                Log.outFatal(LogFilter.Unit, "Unit {0} is not able to release its charm {1}", GetEntry(), GetCharmedGUID());
             if (!IsPet()) // pets don't use the flag for this
                 RemoveUnitFlag(UnitFlags.PetInCombat); // m_controlled is now empty, so we know none of our minions are in combat
         }

Source/Game/Entities/Unit/Unit.cs

@@ -465,10 +465,12 @@ namespace Game.Entities
 
                 RemoveAllFollowers();
 
-                if (!GetCharmerGUID().IsEmpty())
+                if (IsCharmed())
-                {
+                    RemoveCharmedBy(null);
-                    Log.outFatal(LogFilter.Unit, "Unit {0} has charmer guid when removed from world", GetEntry());
+
-                }
+                Cypher.Assert(!GetCharmedGUID().IsEmpty(), $"Unit {GetEntry()} has charmed guid when removed from world");
+                Cypher.Assert(!GetCharmerGUID().IsEmpty(), $"Unit {GetEntry()} has charmer guid when removed from world");
+
                 Unit owner = GetOwner();
                 if (owner != null)
                 {
@@ -665,7 +667,7 @@ namespace Game.Entities
             if (m_gameObj.Empty())
                 return;
 
-            for (var i =0; i < m_gameObj.Count; ++i)
+            for (var i = 0; i < m_gameObj.Count; ++i)
             {
                 var obj = m_gameObj[i];
                 if (spellid == 0 || obj.GetSpellId() == spellid)
@@ -1209,31 +1211,17 @@ namespace Game.Entities
             AIUpdateTick(0, true);
         }
 
-
         public bool IsPossessing()
         {
-            Unit u = GetCharm();
+            Unit u = GetCharmed();
             if (u != null)
                 return u.IsPossessed();
             else
                 return false;
         }
-        public Unit GetCharm()
-        {
-            ObjectGuid charm_guid = GetCharmGUID();
-            if (!charm_guid.IsEmpty())
-            {
-                Unit pet = Global.ObjAccessor.GetUnit(this, charm_guid);
-                if (pet != null)
-                    return pet;
 
-                Log.outError(LogFilter.Unit, "Unit.GetCharm: Charmed creature {0} not exist.", charm_guid);
-                SetCharmGUID(ObjectGuid.Empty);
-            }
-
-            return null;
-        }
         public bool IsCharmed() { return !GetCharmerGUID().IsEmpty(); }
+
         public bool IsPossessed() { return HasUnitState(UnitState.Possessed); }
 
         public void OnPhaseChange()
@@ -1567,44 +1555,44 @@ namespace Game.Entities
                     displayPower = PowerType.Mana;
                     break;
                 default:
+                {
+                    var powerTypeAuras = GetAuraEffectsByType(AuraType.ModPowerDisplay);
+                    if (!powerTypeAuras.Empty())
                     {
-                        var powerTypeAuras = GetAuraEffectsByType(AuraType.ModPowerDisplay);
+                        AuraEffect powerTypeAura = powerTypeAuras.First();
-                        if (!powerTypeAuras.Empty())
+                        displayPower = (PowerType)powerTypeAura.GetMiscValue();
+                    }
+                    else if (GetTypeId() == TypeId.Player)
+                    {
+                        ChrClassesRecord cEntry = CliDB.ChrClassesStorage.LookupByKey(GetClass());
+                        if (cEntry != null && cEntry.DisplayPower < PowerType.Max)
+                            displayPower = cEntry.DisplayPower;
+                    }
+                    else if (GetTypeId() == TypeId.Unit)
+                    {
+                        Vehicle vehicle = GetVehicleKit();
+                        if (vehicle)
                         {
-                            AuraEffect powerTypeAura = powerTypeAuras.First();
+                            PowerDisplayRecord powerDisplay = CliDB.PowerDisplayStorage.LookupByKey(vehicle.GetVehicleInfo().PowerDisplayID[0]);
-                            displayPower = (PowerType)powerTypeAura.GetMiscValue();
+                            if (powerDisplay != null)
+                                displayPower = (PowerType)powerDisplay.ActualType;
+                            else if (GetClass() == Class.Rogue)
+                                displayPower = PowerType.Energy;
                         }
-                        else if (GetTypeId() == TypeId.Player)
+                        else
                         {
-                            ChrClassesRecord cEntry = CliDB.ChrClassesStorage.LookupByKey(GetClass());
+                            Pet pet = ToPet();
-                            if (cEntry != null && cEntry.DisplayPower < PowerType.Max)
+                            if (pet)
-                                displayPower = cEntry.DisplayPower;
-                        }
-                        else if (GetTypeId() == TypeId.Unit)
-                        {
-                            Vehicle vehicle = GetVehicleKit();
-                            if (vehicle)
                             {
-                                PowerDisplayRecord powerDisplay = CliDB.PowerDisplayStorage.LookupByKey(vehicle.GetVehicleInfo().PowerDisplayID[0]);
+                                if (pet.GetPetType() == PetType.Hunter) // Hunter pets have focus
-                                if (powerDisplay != null)
+                                    displayPower = PowerType.Focus;
-                                    displayPower = (PowerType)powerDisplay.ActualType;
+                                else if (pet.IsPetGhoul() || pet.IsPetAbomination()) // DK pets have energy
-                                else if (GetClass() == Class.Rogue)
                                     displayPower = PowerType.Energy;
                             }
-                            else
-                            {
-                                Pet pet = ToPet();
-                                if (pet)
-                                {
-                                    if (pet.GetPetType() == PetType.Hunter) // Hunter pets have focus
-                                        displayPower = PowerType.Focus;
-                                    else if (pet.IsPetGhoul() || pet.IsPetAbomination()) // DK pets have energy
-                                        displayPower = PowerType.Energy;
-                                }
-                            }
                         }
-                        break;
                     }
+                    break;
+                }
             }
 
             SetPowerType(displayPower);
@@ -1876,10 +1864,6 @@ namespace Game.Entities
         public void SetCreatorGUID(ObjectGuid creator) { SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.CreatedBy), creator); }
         public ObjectGuid GetMinionGUID() { return m_unitData.Summon; }
         public void SetMinionGUID(ObjectGuid guid) { SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.Summon), guid); }
-        public ObjectGuid GetCharmerGUID() { return m_unitData.CharmedBy; }
-        public void SetCharmerGUID(ObjectGuid owner) { SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.CharmedBy), owner); }
-        public ObjectGuid GetCharmGUID() { return m_unitData.Charm; }
-        public void SetCharmGUID(ObjectGuid charm) { SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.Charm), charm); }
         public ObjectGuid GetPetGUID() { return m_SummonSlot[0]; }
         public void SetPetGUID(ObjectGuid guid) { m_SummonSlot[0] = guid; }
         public ObjectGuid GetCritterGUID() { return m_unitData.Critter; }
@@ -1887,8 +1871,52 @@ namespace Game.Entities
         public ObjectGuid GetBattlePetCompanionGUID() { return m_unitData.BattlePetCompanionGUID; }
         public void SetBattlePetCompanionGUID(ObjectGuid guid) { SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.BattlePetCompanionGUID), guid); }
 
-        public void SetWildBattlePetLevel(uint wildBattlePetLevel) { SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.WildBattlePetLevel), wildBattlePetLevel); }
+        public bool SetCharmerData(Unit unit)
-        public uint GetWildBattlePetLevel() { return m_unitData.WildBattlePetLevel; }
+        {
+            if (!GetCharmerGUID().IsEmpty())
+                return false;
+
+            SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.CharmedBy), unit.GetGUID());
+            m_charmer = unit;
+            return true;
+        }
+
+        public bool ClearCharmerData(Unit verify)
+        {
+            if (GetCharmerGUID() != verify.GetGUID())
+                return false;
+
+            SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.CharmedBy), ObjectGuid.Empty);
+            m_charmer = null;
+            return true;
+        }
+
+        public ObjectGuid GetCharmerGUID() { return m_unitData.CharmedBy; }
+
+        public Unit GetCharmer() { return m_charmer; }
+
+        public bool SetCharmedData(Unit unit)
+        {
+            if (!GetCharmedGUID().IsEmpty())
+                return false;
+
+            m_charmed = unit;
+            return true;
+        }
+
+        public bool ClearCharmedData(Unit verify)
+        {
+            if (GetCharmedGUID() != verify.GetGUID())
+                return false;
+
+            SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.Charm), ObjectGuid.Empty);
+            m_charmed = null;
+            return true;
+        }
+
+        public ObjectGuid GetCharmedGUID() { return m_unitData.Charm; }
+
+        public Unit GetCharmed() { return m_charmed; }
 
         public override ObjectGuid GetCharmerOrOwnerGUID()
         {
@@ -1910,19 +1938,14 @@ namespace Game.Entities
                 return ToPlayer();
         }
 
-        public Unit GetCharmer()
-        {
-            ObjectGuid charmerid = GetCharmerGUID();
-            if (!charmerid.IsEmpty())
-                return Global.ObjAccessor.GetUnit(this, charmerid);
-            return null;
-        }
-
         public override Unit GetCharmerOrOwner()
         {
-            return !GetCharmerGUID().IsEmpty() ? GetCharmer() : GetOwner();
+            return IsCharmed() ? GetCharmer() : GetOwner();
         }
 
+        public void SetWildBattlePetLevel(uint wildBattlePetLevel) { SetUpdateFieldValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.WildBattlePetLevel), wildBattlePetLevel); }
+        public uint GetWildBattlePetLevel() { return m_unitData.WildBattlePetLevel; }
+
         public bool HasUnitFlag(UnitFlags flags) { return (m_unitData.Flags & (uint)flags) != 0; }
         public void AddUnitFlag(UnitFlags flags) { SetUpdateFieldFlagValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.Flags), (uint)flags); }
         public void RemoveUnitFlag(UnitFlags flags) { RemoveUpdateFieldFlagValue(m_values.ModifyValue(m_unitData).ModifyValue(m_unitData.Flags), (uint)flags); }
@@ -2823,7 +2846,6 @@ namespace Game.Entities
             }
         }
 
-
         public long ModifyHealth(long dVal)
         {
             long gain = 0;
@@ -2865,6 +2887,7 @@ namespace Game.Entities
 
             return gain;
         }
+
         public long GetHealthGain(long dVal)
         {
             long gain = 0;

Source/Game/Handlers/PetHandler.cs

@@ -112,7 +112,7 @@ namespace Game
                 return;
             }
 
-            if (pet != GetPlayer().GetPet() && pet != GetPlayer().GetCharm())
+            if (pet != GetPlayer().GetPet() && pet != GetPlayer().GetCharmed())
             {
                 Log.outError(LogFilter.Network, "HandlePetStopAttack: {0} isn't a pet or charmed creature of player {1}", packet.PetGUID.ToString(), GetPlayer().GetName());
                 return;
@@ -609,7 +609,7 @@ namespace Game
                 return;
             }
 
-            if (pet != GetPlayer().GetGuardianPet() && pet != GetPlayer().GetCharm())
+            if (pet != GetPlayer().GetGuardianPet() && pet != GetPlayer().GetCharmed())
             {
                 Log.outError(LogFilter.Network, "WorldSession.HandlePetSpellAutocast: {0} isn't pet of player {1} ({2}).",
                     packet.PetGUID.ToString(), GetPlayer().GetName(), GetPlayer().GetGUID().ToString());
@@ -660,7 +660,7 @@ namespace Game
             }
 
             // This opcode is also sent from charmed and possessed units (players and creatures)
-            if (caster != GetPlayer().GetGuardianPet() && caster != GetPlayer().GetCharm())
+            if (caster != GetPlayer().GetGuardianPet() && caster != GetPlayer().GetCharmed())
             {
                 Log.outError(LogFilter.Network, "WorldSession.HandlePetCastSpell: {0} isn't pet of player {1} ({2}).", petCastSpell.PetGUID.ToString(), GetPlayer().GetName(), GetPlayer().GetGUID().ToString());
                 return;

Source/Game/Handlers/SpellHandler.cs

@@ -421,7 +421,7 @@ namespace Game
                 return;
             }
 
-            if (pet != GetPlayer().GetGuardianPet() && pet != GetPlayer().GetCharm())
+            if (pet != GetPlayer().GetGuardianPet() && pet != GetPlayer().GetCharmed())
             {
                 Log.outError(LogFilter.Network, "HandlePetCancelAura: {0} is not a pet of player '{1}'", packet.PetGUID.ToString(), GetPlayer().GetName());
                 return;

Source/Game/Handlers/VehicleHandler.cs

@@ -28,7 +28,7 @@ namespace Game
         [WorldPacketHandler(ClientOpcodes.MoveDismissVehicle, Processing = PacketProcessing.ThreadSafe)]
         void HandleMoveDismissVehicle(MoveDismissVehicle packet)
         {
-            ObjectGuid vehicleGUID = GetPlayer().GetCharmGUID();
+            ObjectGuid vehicleGUID = GetPlayer().GetCharmedGUID();
             if (vehicleGUID.IsEmpty())                                       // something wrong here...
                 return;
 

Source/Game/Spells/Spell.cs

@@ -3158,7 +3158,7 @@ namespace Game.Spells
             // Unsummon summon as possessed creatures on spell cancel
             if (m_spellInfo.IsChanneled() && unitCaster.IsTypeId(TypeId.Player))
             {
-                Unit charm = unitCaster.GetCharm();
+                Unit charm = unitCaster.GetCharmed();
                 if (charm != null)
                     if (charm.IsTypeId(TypeId.Unit) && charm.ToCreature().HasUnitTypeMask(UnitTypeMask.Puppet)
                         && charm.m_unitData.CreatedBySpell == m_spellInfo.Id)
@@ -5032,7 +5032,7 @@ namespace Game.Spells
                                     return SpellCastResult.AlreadyHaveSummon;
                                 goto case SummonCategory.Puppet;
                             case SummonCategory.Puppet:
-                                if (!unitCaster.GetCharmGUID().IsEmpty())
+                                if (!unitCaster.GetCharmedGUID().IsEmpty())
                                     return SpellCastResult.AlreadyHaveCharm;
                                 break;
                         }
@@ -5073,7 +5073,7 @@ namespace Game.Spells
                                 return SpellCastResult.AlreadyHaveSummon;
                         }
 
-                        if (!unitCaster.GetCharmGUID().IsEmpty())
+                        if (!unitCaster.GetCharmedGUID().IsEmpty())
                             return SpellCastResult.AlreadyHaveCharm;
                         break;
                     }
@@ -5281,7 +5281,7 @@ namespace Game.Spells
                             if (!m_spellInfo.HasAttribute(SpellAttr1.DismissPet) && !unitCaster1.GetPetGUID().IsEmpty())
                                 return SpellCastResult.AlreadyHaveSummon;
 
-                            if (!unitCaster1.GetCharmGUID().IsEmpty())
+                            if (!unitCaster1.GetCharmedGUID().IsEmpty())
                                 return SpellCastResult.AlreadyHaveCharm;
                         }
 

Source/Scripts/Spells/Hunter.cs

@@ -386,7 +386,7 @@ namespace Scripts.Spells.Hunter
                 if (!caster.GetPetGUID().IsEmpty())
                     return SpellCastResult.AlreadyHaveSummon;
 
-                if (!caster.GetCharmGUID().IsEmpty())
+                if (!caster.GetCharmedGUID().IsEmpty())
                     return SpellCastResult.AlreadyHaveCharm;
             }
             else