import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class MainWorld here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class MainWorld extends World
{

    /**
     * Constructor for objects of class MainWorld.
     * 
     */
    public MainWorld()
    {    
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(600, 400, 1);
        Heading heading = new Heading();
        TankTurret turret = new TankTurret(heading);
        TankBase tank = new TankBase();
        addObject(tank, 200, 200);
        addObject(turret, 198, 199);
        turret.createHeading();
    }
}

import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class TankTurret here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class TankTurret extends Actor
{
    private Heading heading;

    public TankTurret()
    {
    }

    public TankTurret(Heading head)
    {
        heading = head;
    }

    /**
     * Act - do whatever the TankTurret wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        heading.turnTurret(getRotation());
    }
    
    public void turnNow(int degr)
    {
        turn(degr);
    }
    
    public void createHeading()
    {
        TankTurret turret = new TankTurret(heading);
        Heading heading = new Heading(turret);
        getWorld().addObject(heading, getX(), getY());
    }
}

import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class Heading here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Heading extends Actor
{
    private TankTurret turret;
    int rotatie;
    int rotatieSpeedRechts = 2;
    int rotatieSpeedLinks = -2;
    
    public Heading()
    {     
    }
   
    public Heading(TankTurret turr)
    {
        turret = turr;
        if (Greenfoot.getMouseInfo()== null)
        {

        }
        else
        {
            MouseInfo mouse = Greenfoot.getMouseInfo();
            turnTowards((int)mouse.getX(), (int)mouse.getY());
        }
    }

    /**
     * Act - do whatever the Heading wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        turn();
    }    

    public void turn()
    {
        if (Greenfoot.getMouseInfo()== null)
        {

        }
        else
        {
            MouseInfo mouse = Greenfoot.getMouseInfo();
            turnTowards((int)mouse.getX(), (int)mouse.getY());
        }
    }

    public void setRotationSpeed(int rotaSpeedLinks, int rotaSpeedRechts)
    {
        int rotatieSpeedRechts = rotaSpeedRechts;
        int rotatieSpeedLinks = rotaSpeedLinks;
    }

    public void turnTurret(int rotatie)
    {
        //turret.setHeading(getRotation());
        if(getRotation() > rotatie && getRotation() < rotatie + 180)
        {
            turret.turnNow(rotatieSpeedRechts);
        }
        else if(getRotation() > rotatie && getRotation() + 180 < rotatie || getRotation() - 180 < rotatie)
        {
            turret.turnNow(rotatieSpeedRechts);
        }
        else if(getRotation() < rotatie && getRotation() + 180 > rotatie)
        {
            turret.turnNow(rotatieSpeedLinks);
        }
        else if(getRotation() < rotatie && getRotation() + 180 > rotatie || getRotation() - 180 > rotatie)
        {
            turret.turnNow(rotatieSpeedLinks);
        }
    }
}