void HandleUseItem(UseItem packet)
        {
            Player user = GetPlayer();

            // ignore for remote control state
            if (user.m_unitMovedByMe != user)
            {
                return;
            }

            Item item = user.GetUseableItemByPos(packet.PackSlot, packet.Slot);

            if (item == null)
            {
                user.SendEquipError(InventoryResult.ItemNotFound);
                return;
            }

            if (item.GetGUID() != packet.CastItem)
            {
                user.SendEquipError(InventoryResult.ItemNotFound);
                return;
            }

            ItemTemplate proto = item.GetTemplate();

            if (proto == null)
            {
                user.SendEquipError(InventoryResult.ItemNotFound, item);
                return;
            }

            // some item classes can be used only in equipped state
            if (proto.GetInventoryType() != InventoryType.NonEquip && !item.IsEquipped())
            {
                user.SendEquipError(InventoryResult.ItemNotFound, item);
                return;
            }

            InventoryResult msg = user.CanUseItem(item);

            if (msg != InventoryResult.Ok)
            {
                user.SendEquipError(msg, item);
                return;
            }

            // only allow conjured consumable, bandage, poisons (all should have the 2^21 item flag set in DB)
            if (proto.GetClass() == ItemClass.Consumable && !proto.GetFlags().HasAnyFlag(ItemFlags.IgnoreDefaultArenaRestrictions) && user.InArena())
            {
                user.SendEquipError(InventoryResult.NotDuringArenaMatch, item);
                return;
            }

            // don't allow items banned in arena
            if (proto.GetFlags().HasAnyFlag(ItemFlags.NotUseableInArena) && user.InArena())
            {
                user.SendEquipError(InventoryResult.NotDuringArenaMatch, item);
                return;
            }

            if (user.IsInCombat())
            {
                for (int i = 0; i < proto.Effects.Count; ++i)
                {
                    SpellInfo spellInfo = Global.SpellMgr.GetSpellInfo((uint)proto.Effects[i].SpellID);
                    if (spellInfo != null)
                    {
                        if (!spellInfo.CanBeUsedInCombat())
                        {
                            user.SendEquipError(InventoryResult.NotInCombat, item);
                            return;
                        }
                    }
                }
            }

            // check also  BIND_WHEN_PICKED_UP and BIND_QUEST_ITEM for .additem or .additemset case by GM (not binded at adding to inventory)
            if (item.GetBonding() == ItemBondingType.OnUse || item.GetBonding() == ItemBondingType.OnAcquire || item.GetBonding() == ItemBondingType.Quest)
            {
                if (!item.IsSoulBound())
                {
                    item.SetState(ItemUpdateState.Changed, user);
                    item.SetBinding(true);
                    GetCollectionMgr().AddItemAppearance(item);
                }
            }

            SpellCastTargets targets = new SpellCastTargets(user, packet.Cast);

            // Note: If script stop casting it must send appropriate data to client to prevent stuck item in gray state.
            if (!Global.ScriptMgr.OnItemUse(user, item, targets, packet.Cast.CastID))
            {
                // no script or script not process request by self
                user.CastItemUseSpell(item, targets, packet.Cast.CastID, packet.Cast.Misc);
            }
        }