/// <summary>
/// Each time a PerformAction is called we check what Status the elevator
/// is in and we are removing the guests from the RemoveGuest list
/// Because we have a "Smart" elevator, the elevator will check wich list is bigger and then handle the biggest list first until it's empty
/// which means that the elevator will always make the uplist smaller and if the list is equal to zero the elevator will go down
///
/// This is just like in real life. If there are 3 people, each person is on a different floor
/// and lets say guestA presses the button first and the elevator is also on floor 3 now
/// GuestA,B wants to go down but guestC wants to go up.
///
/// which means our Up list is filled with guestC and our Down list is filled with guestA and B
/// this will lead to that our down list is bigger and the lift will first drop off guestA and B to the requested floor and will then pick up guestC
/// this elevator will not jump up and down
/// floor: 5
/// floor: 4 guestC
/// floor: 3 guestA elevator
/// floor: 2 guestB
/// floor: 1
/// </summary>
public void PerformAction()
{
//We wanted to use a foreach loop but because of the threading we had to do a forloop
//Difference between foreach and forloop is that a foreach will crash when something is changed during the simulation and forloop can adjust
RemoveGuests.Clear();
for (int i = 0; i < GuestList.Count; i++)
{
if (GuestList[i] is IMovable g)
{
if (Position.Y == g.FinalDes.Position.Y)
{
g.Status = MovableStatus.LEAVING_ELEVATOR;
g.Area = Hotel.GetArea(Position);
RemoveGuests.Add(GuestList[i]);
}
}
}
//Second forloop to remove the guest in order to not have an error
for (int i = 0; i < RemoveGuests.Count; i++)
{
GuestList.Remove(RemoveGuests[i]);
}
RemoveGuests.Clear();
//Removing Down list items
if (Down.Count != 0 && Down[0] == Position.Y)
{
Down.RemoveAt(0);
}
//Removing Up list items
if (Up.Count != 0 && Up[0] == Position.Y)
{
Up.RemoveAt(0);
}
//If the status is up we perform the method _elevatorGoesup();
if (Status == MovableStatus.UP)
{
_elevatorGoesUp();
}
//If the status is down we perform the method _elevatorGoesDown() with an extra check that the elevator will not leave the field.
else if (Status == MovableStatus.DOWN && Position.Y < Hotel.HotelHeight)
{
_elevatorGoesDown();
}
else
{
Status = MovableStatus.IDLE;
}
//In order to draw the guests correctly on the field we change the position to the elevator position
foreach (IMovable human in GuestList)
{
human.Position = Position;
}
AddDestinationFloor();
//If both lists are empty we are changing the elevatorCart status and the elevator will go down
if (Up.Count == 0 && Down.Count == 0)
{
Status = MovableStatus.IDLE;
}
if (Status == MovableStatus.IDLE)
{
_ElevatorDoesNothing();
}
}
/// <summary>
/// Sets the properties to use dijkstra
/// </summary>
/// <param name="hotel">The current hotel</param>
public static void IntilazeDijkstra(Hotel hotel)
{
Hotel = hotel;
Areas = Hotel.HotelAreas;
}