/// <summary>
/// Sell an amount of the selected item to the merchant
/// </summary>
/// <param name="amount">The amount to sell</param>
public void SellItem(int amount = 1)
{
if (LedgerManager.ProcessSell(_ship, _warehouse, GameState.assets, _itemList[_selectedItem].ware.id, amount))
{
UpdateDisplay();
}
}