public double distance(Segment other) {
        Point p = line.intersection(other.line);
        if (p == null) {
            if (!other.isInside(other.line.project(line.getPointA())) && !other.isInside(other.line.project(line.getPointB()))
                    && !isInside(line.project(other.line.getPointA())) && !isInside(line.project(other.line.getPointB()))) {
                return Math.min(
                        Math.min(line.getPointA().distance(other.line.getPointA()),
                                line.getPointA().distance(other.line.getPointB())),
                        Math.min(line.getPointB().distance(other.line.getPointB()),
                                line.getPointB().distance(other.line.getPointA())));
            }
            return line.distance(other.line);
        }
        if (isInside(p)) {
            return other.distance(p);
        }
        if (other.isInside(p)) {
            return distance(p);
        }
        return Math.min(
                Math.min(line.getPointA().distance(other.line.getPointA()),
                line.getPointA().distance(other.line.getPointB())),
                Math.min(line.getPointB().distance(other.line.getPointB()),
                line.getPointB().distance(other.line.getPointA())));
    }