//Count all the items in a register line
public int GetNumItems()
{
int num_items = 0;
if (current_customer != null)
{
num_items += current_customer.GetItems();
}
foreach (Customer c in line)
{
num_items += c.GetItems();
}
return(num_items);
}
//Select next customer in line
public void NextCustomer(int current_time)
{
if (current_customer == null && line.Count > 0)
{
current_customer = line[0];
current_customer.QueueFinished(current_time);
//Calculate time necessary to help customer
processing_time = CalculateProcessingTime(current_customer.GetItems());
//Remove customer from line
line.Remove(current_customer);
//Start the proc
current_customer.ProcessingStart(current_time);
}
}
