# Ur den generella klassen för alla objekt i spelet

public class GameObject {
	private double x, y;
	private double xv, yv;
	private int width, height;
	private GameWorld world;

	public GameObject(double x, double y, double xv, double yv, int width, int height, GameWorld world) {
		this.x = x;
		this.y = y;
		this.xv = xv;
		this.yv = yv;
		this.width = width;
		this.height = height;
		this.world = world;
	}

	public void move() {
		x += xv;
		y += yv;
	}

# Klass som alla fiender ärver från

public class Enemy extends GameObject {
	private GameWorld world;

	public Enemy(double x, double y, double xv, double yv, int width, int height, GameWorld world) {
		super(x, y, xv, yv, width, height, world);
		this.world = world;
	}


# Klass för fienden helikopter

public class Helicopter extends Enemy {

	public Helicopter(double x, double y, double xv, double yv, GameWorld world) {
		super(x, y, xv, yv, 64, 32, world);
	}