/**
     * Gets the Yaw from one location to another in relation to North.
     *
     */
    public double getYawTo(Location from, Location to) {
            final int distX = to.getBlockX() - from.getBlockX();
            final int distZ = to.getBlockZ() - from.getBlockZ();
            double degrees = Math.toDegrees(Math.atan(distX/distZ));
            if ( (distX < 0 && distZ >= 0) || ( distX >= 0 && distZ >= 0) )
                    degrees += 180;
            if ( distX >= 0 && distZ < 0)
                degrees += 360;

        return degrees;
    }