/// <summary>
/// Choose an elevator to make the trip
/// No new elevator will be assigned during this method, but elevators may become available
/// </summary>
/// <param name="startFloor"></param>
/// <param name="endFloor"></param>
/// <returns></returns>
public Elevator AssignElevator(int startFloor, int endFloor)
{
// Find all of the available elevators
IEnumerable <Elevator> availableElevators = Elevators.Where(e => e.IsAvailable);
if (availableElevators.Count() == 0)
{
// No elevators are available try again later
return(null);
}
Elevator assignedElevator = availableElevators.First();
int floorDistance = Math.Abs(startFloor - assignedElevator.CurrentFloor);
// When an elevator request is made, the unoccupied elevator closest to it will answer the call
foreach (Elevator current in availableElevators)
{
int currentDistance = Math.Abs(startFloor - current.CurrentFloor);
if (currentDistance < floorDistance)
{
floorDistance = currentDistance;
assignedElevator = current;
}
if (currentDistance == 0)
{
return(assignedElevator);
}
}
return(assignedElevator);
}
/// <summary>
/// Removes all elements in scope from the instance.
/// </summary>
/// <param name="theTier">The tier to remove the elements from.</param>
/// <param name="xMin">The min x-value of the scope.</param>
/// <param name="xMax">The max x-value of the scope.</param>
/// <param name="yMin">The min y-value of the scope.</param>
/// <param name="yMax">The max y-value of the scope.</param>
public void ModRemoveWaypoints(ITierInfo theTier, double xMin, double yMin, double xMax, double yMax)
{
Tier tier = theTier as Tier;
// Remove waypoints
List <Waypoint> remWaypoints = Waypoints.Where(w => w.Tier == tier && xMin <= w.X && w.X <= xMax && yMin <= w.Y && w.Y <= yMax).ToList();
// Remove all of them
foreach (var waypoint in remWaypoints)
{
// Remove the waypoint - the waypoint graph handles all cascading path removals
waypoint.Tier.RemoveWaypoint(waypoint);
// Remove all elements that were connected to the waypoint
foreach (var guard in Semaphores.SelectMany(s => s.Guards).Where(guard => guard.From == waypoint || guard.To == waypoint).ToArray())
{
guard.Semaphore.UnregisterGuard(guard);
if (guard.Semaphore.Guards.Count() == 0)
{
Semaphores.Remove(guard.Semaphore);
}
}
foreach (var station in InputStations.Where(s => s.Waypoint == waypoint).ToArray())
{
station.Tier.RemoveInputStation(station);
InputStations.Remove(station);
}
foreach (var station in OutputStations.Where(s => s.Waypoint == waypoint).ToArray())
{
station.Tier.RemoveOutputStation(station);
OutputStations.Remove(station);
}
foreach (var pod in Pods.Where(p => p.Waypoint == waypoint).ToArray())
{
pod.Tier.RemovePod(pod);
Pods.Remove(pod);
}
foreach (var elevator in Elevators.Where(e => e.ConnectedPoints.Contains(waypoint)))
{
elevator.UnregisterPoint(waypoint);
if (elevator.ConnectedPoints.Count == 0)
{
Elevators.Remove(elevator);
}
}
// Make sure it is not on the list of storage locations anymore
if (waypoint.PodStorageLocation)
{
ResourceManager.RemovePodStorageLocation(waypoint);
}
// Finally remove from the overall waypoint list
Waypoints.Remove(waypoint);
}
// Also remove movables in scope
List <Bot> remBots = Bots.Where(b => b.Tier == tier && xMin <= b.X && b.X <= xMax && yMin <= b.Y && b.Y <= yMax).ToList();
foreach (var bot in remBots)
{
Bots.Remove(bot);
bot.Tier.RemoveBot(bot);
}
List <Pod> remPods = Pods.Where(p => p.Tier == tier && xMin <= p.X && p.X <= xMax && yMin <= p.Y && p.Y <= yMax).ToList();
foreach (var pod in remPods)
{
Pods.Remove(pod);
pod.Tier.RemovePod(pod);
}
}