PickUpItem.OnItemPick C# (CSharp) Method

    void OnItemPick()
    {
        if (_player == null)
        {
            _player = UnityEngine.GameObject.FindGameObjectWithTag("Player");
        }
        if (_inventory == null && _player != null)
        {
            _inventory = _player.GetComponent<PlayerInventory>().inventory.GetComponent<Inventory>();
        }
        if (_inventory != null)
        {
            float distance = Vector3.Distance(this.gameObject.transform.position, _player.transform.position);

            if (distance <= 3)
            {
                //bool check = _inventory.checkIfItemAllreadyExist(item.itemID, item.itemValue);
                //if (check)
                //    Destroy(this.gameObject);
                if (_inventory.ItemsInInventory.Count < (_inventory.width * _inventory.height))
                {
                    DroppedItem item = (DroppedItem)KBEngineApp.app.findEntity(Utility.getPostInt(gameObject.name));
                    if (item != null)
                    {
                        item.pickUpRequest();
                    }
                    //_inventory.addItemToInventory(item.itemID, item.itemValue);
                    //_inventory.updateItemList();
                    //_inventory.stackableSettings();
                    //Destroy(this.gameObject);
                }

            }
        }
    }