GreenfootImage bg = getBackground();
        bg.setColor(Color.white);  -- THIS ONE
        bg.fillRect(684, 15, 100, 30);
        bg.setColor(Color.black); -- THIS ONE
        bg.setFont(new Font("SERIF", Font.BOLD, 28));
        bg.setColor(Color.black);  -- THIS ONE
        bg.drawString(""+score, 684, 40);
    }
     
    private void setAction(int action)
    {
        removeObjects(getObjects(Chaser.class)); // remove old chasers
        actionType = action%5; // set bound action
        int[] distances = { 0, 0, -10, 0, -15 }; // bound ranges
        actionDistance = distances[actionType]; // the range for this action
        String[] texts = { "UNBOUND", "LIMIT", "REMOVAL", "WRAPPING", "BOUNCE" }; // the bounds text
        // adjust bounds display
        GreenfootImage bg = getBackground();
        bg.setFont(new Font("SERIF", Font.BOLD, 36));
        bg.setColor(Color.black); -- THIS ONE
        bg.fillRect(350, 0, 200, 50);
        bg.setColor(Color.gray); -- THIS ONE
        bg.drawString(texts[actionType], 350, 44);
        // reset score
        score = 0;
        // ensure player is in world

import greenfoot.*;

public class Boss extends Actor
{
    int dr = 0; // the current turn rate
    
    public Boss()
    {
        setBoundedAction(Lume1_2.actionType, Lume1_2.actionDistance); // set bound fields
        // create image for this actor
        
        GreenfootImage image = new GreenfootImage(30, 30);
        image.fillOval(0, 0, 30, 30);
        image.setColor(new java.awt.Color(224, 240, 255));
        image.fillOval(7, 7, 16, 16);
        setImage("1.png");
        
    }

    /**
     * turn and move actor
     */
    public void act()
    {
        int dx = 0, dy = 0; // the differences in locational coordinates
        int rate = 0; // the rate of turn and speed
        
        if ChaserBullet bullet = new ChaserBullet(); // adjust class name as needed
          {bullet.setRotation(getRotation());
           getWorld().addObject(bullet, getX(), getY());}
        

        Actor chased = Lume1_1.chased;
        if (chased != null && chased.getWorld() != null)
        { // set variable values
            dx = getX()-chased.getX();
            dy = getY()-chased.getY();
            rate = 400-(int)Math.abs(dx)-(int)Math.abs(dy);

        }

        if (rate > 100)
        { // chase
            // the next code line does what is described in the following commented lines
               // determine shortest turn direction to face chased
            // int angleDiff = getRotation()-(int)(Math.atan2(dy, dx)*180/Math.PI); // range: -359 to 359
            // int anglet = (angleDiff+360+180)%360-180; // range: -180 to 179 (sign is turn direction)
               // turn and move
            // turn(16*rate*(int)Math.signum(anglet)); 
            turn(16*rate*(int)Math.signum((getRotation()-(int)(Math.atan2(dy, dx)*180/Math.PI)+540)%360-180));
            move(rate/8, getQR()); // between 'move(0.1)' to 'move(0.4)' for a non-QActor, which is not possible
        }
        else
        { // wander
            // vary turn rate
            dr += 2-Greenfoot.getRandomNumber(5)-(int)Math.signum(dr);
            // limit turn rate to between 40 q-rotation units left and right
            if (dr < -40) dr = -40;
            if (dr > 40) dr = 40;
            // turn and move
            turn(dr);
            move(35);
        
        }
    }
}

if ( /*some condition*/ )
{
    //things to happen when condition is met
}
else //optional
{
    //things to happen when condition is not met
}

  public void act()
    {
        int dx = 0, dy = 0; // the differences in locational coordinates
        int rate = 0; // the rate of turn and speed
        
        if (ChaserBullet bullet = new ChaserBullet())
       {
           bullet.setRotation(getRotation());
           getWorld().addObject(bullet, getX(), getY());

        }
       

        Actor chased = Lume1_1.chased;
        if (chased != null && chased.getWorld() != null)
        { // set variable values
            dx = getX()-chased.getX();
            dy = getY()-chased.getY();
            rate = 400-(int)Math.abs(dx)-(int)Math.abs(dy);

        }