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

/**
 * Write a description of class Drone here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Drone extends Actor
{
    /**
     * Act - do whatever the Drone wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        if(Greenfoot.getRandomNumber(5)==0)    
        {    
            setLocation(getX()+5, getY());  
        }
    }    
}

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

/**
 * Write a description of class Dom here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Dom extends Mover
{
  private int speed=5;
   
    public Dom()
    {
    }
    public void act() 
    {
        checkKeys();
        Actor actor = getOneIntersectingObject(Dom.class);  
        if(actor != null)  
        {  
            getWorld().removeObject(this);  
        } 
    }    
    private void checkKeys(){

        if(Greenfoot.isKeyDown("left")){
            moveLeft();
        }

        if(Greenfoot.isKeyDown("right")){
            moveRight();
        }
    
        if(Greenfoot.isKeyDown("up")){
            moveUp();
        } 

        if(Greenfoot.isKeyDown("down")){
            moveDown();
        }    
    }
    public void moveRight(){
        setLocation(getX()+speed,getY());
    }
    public void moveLeft(){
        setLocation(getX()-speed,getY());
    }
    public void moveUp(){
        setLocation(getX(),getY() -speed);
    }
    public void moveDown(){
        setLocation(getX(),getY() +speed);
    } 
}

  public void moveRandomly(){
        move(7);
        if (Greenfoot.getRandomNumber(100) < 10){
            turn(Greenfoot.getRandomNumber(90) -45);
        }
        if (getY() < 20 || getY() > 378 || getX() > 590 || getX() < 20){
            turn(180);
        }
    }

    public boolean collision(){
        if(whateverUrConditionsAre || this.isTouching(Enemy.class)){
            return true;
        }
        else{
            return false;
        }
    }