//Through this method we will analyze the scores of the method above and select the best one
public BestElevatorInfo checkIfElevatorISBetter(int scoreToCheck, Elevator newElevator, BestElevatorInfo bestElevatorInfo, int _requestedFloor)
{
if (scoreToCheck < bestElevatorInfo.bestScore)
{
bestElevatorInfo.bestScore = scoreToCheck;
bestElevatorInfo.bestElevator = newElevator;
bestElevatorInfo.referanceGap = Math.Abs(newElevator.currentFloor - _requestedFloor);
}
else if (bestElevatorInfo.bestScore == scoreToCheck)
{
int gap = Math.Abs(newElevator.currentFloor - _requestedFloor);
if (bestElevatorInfo.referanceGap > gap)
{
bestElevatorInfo.bestScore = scoreToCheck;
bestElevatorInfo.bestElevator = newElevator;
bestElevatorInfo.referanceGap = gap;
}
}
return(bestElevatorInfo);
}
//Comparing elevator to previous best
public BestElevatorInfo checkBestElevator(int scoreToCheck, Elevator newElevator, BestElevatorInfo bestElevatorInfo, int floor)
{
//If elevators situation is more favourable, set to best elevator
if (scoreToCheck < bestElevatorInfo.bestScore)
{
bestElevatorInfo.bestScore = scoreToCheck;
bestElevatorInfo.bestElevator = newElevator;
bestElevatorInfo.referenceGap = Math.Abs(newElevator.currentFloor - floor);
//If elevators are in a similar situation, set the closest one to the best elevator
}
else if (bestElevatorInfo.bestScore == scoreToCheck)
{
int gap = Math.Abs(newElevator.currentFloor - floor);
if (bestElevatorInfo.referenceGap > gap)
{
bestElevatorInfo.bestScore = scoreToCheck;
bestElevatorInfo.bestElevator = newElevator;
bestElevatorInfo.referenceGap = gap;
}
}
return(bestElevatorInfo);
}
//Through this method we will score the best elevator, taking into account proximity, direction and its status
public Elevator findElevator(int _requestedFloor, String _direction)
{
BestElevatorInfo bestElevatorInfo = new BestElevatorInfo(null, 7, 10000000);
if (_requestedFloor == 1)
{
foreach (Elevator elevator in this.elevatorsList)
{
//The elevator is at the lobby and already has some requests. It is about to leave but has not yet departed
if (_requestedFloor == elevator.currentFloor && elevator.status == "stopped")
{
bestElevatorInfo = checkIfElevatorISBetter(1, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is at the lobby and has no requests
else if (_requestedFloor == elevator.currentFloor && elevator.status == "idle")
{
bestElevatorInfo = checkIfElevatorISBetter(2, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is lower than me and is coming up. It means that I'm requesting an elevator to go to a basement, and the elevator is on it's way to me.
else if (_requestedFloor > elevator.currentFloor && elevator.direction == "up")
{
bestElevatorInfo = checkIfElevatorISBetter(3, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is above me and is coming down. It means that I'm requesting an elevator to go to a floor, and the elevator is on it's way to me
else if (_requestedFloor < elevator.currentFloor && elevator.direction == "down")
{
bestElevatorInfo = checkIfElevatorISBetter(3, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is not at the first floor, but doesn't have any request
else if (elevator.status == "idle")
{
bestElevatorInfo = checkIfElevatorISBetter(4, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is not available, but still could take the call if nothing better is found
else
{
bestElevatorInfo = checkIfElevatorISBetter(5, elevator, bestElevatorInfo, _requestedFloor);
}
}
}
else
{
foreach (Elevator elevator in this.elevatorsList)
{
//The elevator is at the same level as me, and is about to depart to the first floor
if (_requestedFloor == elevator.currentFloor && elevator.status == "stopped" && _direction == elevator.direction)
{
bestElevatorInfo = checkIfElevatorISBetter(1, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is lower than me and is going up. I'm on a basement, and the elevator can pick me up on it's way
else if (_requestedFloor > elevator.currentFloor && elevator.direction == "up" && _direction == "up")
{
bestElevatorInfo = checkIfElevatorISBetter(2, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is higher than me and is going down. I'm on a floor, and the elevator can pick me up on it's way
else if (_requestedFloor < elevator.currentFloor && elevator.direction == "down" && _direction == "down")
{
bestElevatorInfo = checkIfElevatorISBetter(2, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is idle and has no requests
else if (elevator.status == "idle")
{
bestElevatorInfo = checkIfElevatorISBetter(4, elevator, bestElevatorInfo, _requestedFloor);
} //The elevator is not available, but still could take the call if nothing better is found
else
{
bestElevatorInfo = checkIfElevatorISBetter(5, elevator, bestElevatorInfo, _requestedFloor);
}
}
}
return(bestElevatorInfo.bestElevator);
}
//Find best elevator to send
public Elevator findBestElevator(int floor, string direction)
{
int requestedFloor = floor;
string requestedDirection = direction;
var bestElevatorInfo = new BestElevatorInfo(null, 6, 1000000);
if (requestedFloor == 1)
{
foreach (Elevator elevator in this.elevatorsList)
{
//Elevator is at lobby with some requests, and about to leave but has not yet
if (1 == elevator.currentFloor && elevator.status == "stopped")
{
this.checkBestElevator(1, elevator, bestElevatorInfo, requestedFloor);
//Elevator is at lobby with no requests
}
else if (1 == elevator.currentFloor && elevator.status == "idle")
{
this.checkBestElevator(2, elevator, bestElevatorInfo, requestedFloor);
//Elevator is lower than user and moving up. Shows user is requesting to go to basement, and elevator is moving to them.
}
else if (1 > elevator.currentFloor && elevator.direction == "up")
{
this.checkBestElevator(3, elevator, bestElevatorInfo, requestedFloor);
//Elevator is higher than user and moving down. Shows user is requesting to go to a floor, and elevator is moving to them.
}
else if (1 < elevator.currentFloor && elevator.direction == "down")
{
this.checkBestElevator(3, elevator, bestElevatorInfo, requestedFloor);
//Elevator is not at lobby floor, but has no requests
}
else if (elevator.status == "idle")
{
this.checkBestElevator(4, elevator, bestElevatorInfo, requestedFloor);
//Elevator is last resort
}
else
{
this.checkBestElevator(5, elevator, bestElevatorInfo, requestedFloor);
}
}
}
else
{
foreach (Elevator elevator in this.elevatorsList)
{
//Elevator is at floor going to lobby
if (requestedFloor == elevator.currentFloor && elevator.status == "stopped" && requestedDirection == elevator.direction)
{
this.checkBestElevator(1, elevator, bestElevatorInfo, requestedFloor);
//Elevator is lower than user and moving through them to destination
}
else if (requestedFloor > elevator.currentFloor && elevator.direction == "up" && requestedDirection == "up")
{
this.checkBestElevator(2, elevator, bestElevatorInfo, requestedFloor);
//Elevator is higher than user and moving through them to destination
}
else if (requestedFloor < elevator.currentFloor && elevator.direction == "down" && requestedDirection == "down")
{
this.checkBestElevator(2, elevator, bestElevatorInfo, requestedFloor);
//Elevator is idle
}
else if (elevator.status == "idle")
{
this.checkBestElevator(3, elevator, bestElevatorInfo, requestedFloor);
//Elevator is last resort
}
else
{
this.checkBestElevator(4, elevator, bestElevatorInfo, requestedFloor);
}
}
}
return(bestElevatorInfo.bestElevator);
}