public double OrderItems(IItem item, uint amount)
{
ISupplier supplierForItem = Marketplace.GetInstance().FindSupplier(item);
if (supplierForItem == null)
{
return(0.0);
}
if (_stock.ContainsKey(item))
{
_stock[item] += amount;
}
else
{
_stock.Add(item, amount);
}
return(supplierForItem.Buy(item, amount));
}
