/*
 * Copyright (c) 2015 Camil Staps
 */
package com.camilstaps.route66;

import OO14route66.Car;
import OO14route66.Model;
import java.util.Random;

/**
 * A Driver takes care its car doesn't collide
 * @author Camil Staps
 */
public class Driver implements Runnable {
    
    private final Car car;
    private final Model model;
    
    private final Random r;
    
    private boolean running, waitingToCross = false;
    private int delay;
    
    public Driver(Car car, Model model) {
        this.car = car;
        this.model = model;
        r = new Random();
    }
    
    /**
     * Set running to false to disable driving altogether
     * @param value 
     */
    public void setRunning(boolean value) {
        running = value;
    }
    
    public void setWaitingToCross(boolean value) {
        waitingToCross = value;
    }
    
    public boolean getWaitingToCross() {
        return waitingToCross;
    }
    
    /**
     * Set some approximate delay for {@link Driver#pause()}. The actual delay
     * is still pseudorandom.
     * @param value 
     */
    public void setDelay(int value) {
        delay = value;
    }

    @Override
    @SuppressWarnings("empty-statement")
    public void run() {
        running = true;
        while (true) {
            while (!running || !model.isSafeLocation(car, car.getNewLocation()));

            car.step();
            
            pause();
        }
    }
    
    /**
     * Pause for some pseudorandom time
     */
    protected void pause() {
        try {
            int bonus = 0;
            if (Math.abs((System.currentTimeMillis() / 1000) % Model.NUMBEROFCARS - car.getNumber()) < 2) {
                bonus = -50;
            }
            Thread.sleep(Math.abs(r.nextInt(50) + delay + bonus));
        } catch (InterruptedException ex) {}
    }
    
}