/// <summary>
        /// Open this treasure chest, auto. closes the previous one.
        /// From an external call use the triggerer. Use() instead.
        /// </summary>
        protected virtual void OpenTreasureChest()
        {
            if (this != lastChest && lastChest != null)
            {
                lastChest.CloseTreasureChest();
            }

            lastChest = this;

            // Set items
            lootWindow.SetItems(items, true);
            window.OnHide            += window_OnHide;
            lootWindow.OnRemovedItem += lootWindow_OnRemovedItem;

            if (open == false)
            {
                window.Show();
                open = true;
            }
        }