//plane can start arrival/landing only if sations 0,1,2,3,7,4 are empty(4-can start parking)
public static bool IsClearForLanding(AirportDTO airport)
{
// same rules as IsClearForDeparture with the exception of station 4
if (AirportFieldValidator.IsClearForDeparturing(airport)) // if all is true, then can check station 4
{
PlaneDTO plane = airport.Planes.FirstOrDefault(p => StationsInfoService.IsAttendingToPark(p.StationId));
if (plane == null) //no
{
return(true);
}
}
return(false);
}
private void ManagePlanesOnHold(AirportDTO airport)
{
//mangaing the planes that want to departure/arrival:
//check if the airport field is clean for departure:
if (AirportFieldValidator.IsClearForDeparturing(airport))
{
// if there is plane that want to departure:
if (DeparturePlanesOnHold.Count != 0)
{
//tell the plane to departure:
PlaneDTO plane = DeparturePlanesOnHold.Peek();
PlaneDTO departuringPlane = airport.Planes.Find(p => p.PlaneId == plane.PlaneId);
departuringPlane.StationId = StationsInfoService.AttendToDepart;
//raise event that plane is departuring:
PlaneDeparturing.Invoke(departuringPlane, EventArgs.Empty);
}
else //if there isnt planes that want to depart, check if there is plane that want land
{
// if there is plane that want to land:
if (ArrivalPlanesOnHold.Count != 0)
{
//check if the field clear for landing:
if (AirportFieldValidator.IsClearForLanding(airport))
{
//if field clear tell the plane to land:
PlaneDTO plane = ArrivalPlanesOnHold.Dequeue();
plane.StationId = StationsInfoService.AttendingToLand.First();
//adding plane to airport :
airport.Planes.Add(plane);
//raise event that plane is arriving:
PlaneArriving.Invoke(plane, EventArgs.Empty);
}
}
}
}
}