Untitled

import java.util.ArrayList;
import java.util.Random;

public class ControlUnit {

    private int numOfFloors;
    private int numOfElevators;
    private ArrayList<Elevator> listOfElevators = new ArrayList();
    private ElevatorControlPanel ECP = new ElevatorControlPanel();

    public ControlUnit () {
    }

    public ControlUnit (int floors, int elevators)
    {
        numOfFloors = floors;
        numOfElevators = elevators;
    }

    public ArrayList<Elevator> getListOfElevators () {
        return listOfElevators;
    }

    public int getNumOfElevators () {
        return numOfElevators;
    }

    public void setNumOfElevators (int val) {
        this.numOfElevators = val;
    }

    public int getNumOfFloors () {
        return numOfFloors;
    }

    public void setNumOfFloors (int val) {
        this.numOfFloors = val;
    }

    public void addElevator () {
        listOfElevators.add(new Elevator());
    }

    public Elevator getClosestElevator (int floor) {
        //if elevator is not idle but going towards the floor, use that elevator
        //if elevator is idle, get closest elevator (if more than one to choose from, get random
        return null;
    }

    public Elevator randomElevator (int floor) {
        int counter = 0;
        int current = 0;

        for (int i=0; i < getNumOfElevators(); i++)
        {
            if (listOfElevators.get(i).getCurrentFloor() == floor)
            {
                counter++;
                current = i;
            }

        }
        if (counter > 1)
        {
            Random generator = new Random();
            int rand = generator.nextInt(counter);
            return listOfElevators.get(rand);
        }
        else
        {
            return listOfElevators.get(current);
        }
    }

}