import java.awt.geom.Point2D;

public class Direction {
    static Point2D UP() {
        return new Point2D.Double(0, -1);
    }

    static Point2D LEFT() {
        return new Point2D.Double(-1, 0);
    }

    static Point2D DOWN() {
        return new Point2D.Double(0, 1);
    }

    static Point2D RIGHT() {
        return new Point2D.Double(1, 0);
    }
}