// Sort requests, for added efficiency
private void SortRequestsQueue()
{
// Remove any requests which are useless i.e. requests that are already on their desired floor
foreach (var req in RequestsQueue.ToArray())
{
if (req.Floor == CurrentFloor)
{
RequestsQueue.Remove(req);
}
}
// Decide if elevator is going up, down or is staying idle
SetMovement();
// Sort
if (RequestsQueue.Count > 1)
{
if (Movement == "up")
{
// Sort the queue in ascending order
RequestsQueue.Sort((x, y) => x.Floor.CompareTo(y.Floor));
// Push any request to the end of the queue that would require a direction change
foreach (var req in RequestsQueue.ToArray())
{
if (req.Direction != Movement || req.Floor < CurrentFloor)
{
RequestsQueue.Remove(req);
RequestsQueue.Add(req);
}
}
}
else
{
// Reverse the sorted queue (will now be in descending order)
RequestsQueue.Sort((x, y) => y.Floor.CompareTo(x.Floor));
// Push any request to the end of the queue that would require a direction change
foreach (var req in RequestsQueue.ToArray())
{
if (req.Direction != Movement || req.Floor > CurrentFloor)
{
RequestsQueue.Remove(req);
RequestsQueue.Add(req);
}
}
}
}
}
// Change properties of elevator in one line - USE ONLY FOR TESTING
public void ChangeProperties(int newCurrentFloor, int newNextFloor)
{
CurrentFloor = newCurrentFloor;
NextFloor = newNextFloor;
if (CurrentFloor > NextFloor)
{
Movement = "down";
}
else
{
Movement = "up";
}
RequestsQueue.Add(new Request(NextFloor, Movement));
}
// Send new request to its request queue
public void SendRequest(int stopFloor, string btnDirection)
{
var request = new Request(stopFloor, btnDirection);
RequestsQueue.Add(request);
}
