I need to make the Man object class change black on the Wall and red on the Fire, but I'm not sure how to.
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
 * Write a description of class Man here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Man extends Actor
{
    /**
     * Act - do whatever the Man wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        // Add your action code here.
        checkKeyPress(); // call this method to work
    } 
    public void checkKeyPress()
    {
        if (Greenfoot.isKeyDown("left"))
        {
            setLocation(getX()-1,getY()); // get loaction of x and y, then move -1 on x move Left
        }
        if (Greenfoot.isKeyDown("right"))
        {
            setLocation(getX()+1,getY()); // move Right
        }
        if (Greenfoot.isKeyDown("down")) 
        {
            setLocation(getX(),getY()+1); // move  down
        }
        if (Greenfoot.isKeyDown("up")) 
        {
            setLocation(getX(),getY()-1); // move up
        }
    }
    public boolean onFire()
    {
        Actor Fire = getOneObjectAtOffset( 0 , 0, Fire.class);
        return Fire != null;
    }
    public boolean onWall()
    {
        Actor Wall = getOneObjectAtOffset( 0 , 0, Wall.class);
        return Wall != null;
    }
}
   
   
             
          
        

