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

public class Bullet extends SmoothMover
{
    /** The damage this bullet will deal */
    private static int damage = 20;
    
    /** A bullet looses one life each act, and will disappear when life = 0 */
    private int life = 30;
    private int rayGunLife = 40;
    GreenfootSound sound =new GreenfootSound("EnergyGun.mp3");
    public Bullet()
    {
    }
    
    /**
     * Allows the Bullet image to be changed to the RayGun image when called
     * and boolean ray is true
     */
    public Bullet(Vector speed, int rotation, boolean ray)
    {
        super(speed);
        setRotation(rotation);
        addForce(new Vector(rotation, 15));
        sound.play();
        damage = 15;
        setImage("RayGunFull.png");
    }
    
    /**
     * Adds a Bullet when call
     */
    public Bullet(Vector speed, int rotation)
    {
        super(speed);
        setRotation(rotation);
        addForce(new Vector(rotation, 15));
        sound.play();
    }
    
    /**
     * The bullet will damage Bug if it hits them.
     */
    public void act()
    {
        if(life <= 0) 
        {
            getWorld().removeObject(this);
        } 
        else 
        {
            life--;
            move();
            checkBugHit();
        }
    }
    
    /**
     * Check whether we have hit an Bug.
     */
    private void checkBugHit()
    {
        Bug Bug = (Bug) getOneIntersectingObject(Bug.class);
        if (Bug!= null)
        {
            getWorld().removeObject(this);
            Bug.hit(damage);
        }
            }
}