point_obstacle.show_value()
        # print(point_current.find_distance_between_points(point_obstacle))

        if point_current.find_distance_between_points(point_obstacle) <= REPULSIVE_RANGE:
            rep_vector = repulsive_force(point_current, point_obstacle, polygon_centroid)
        else:
            rep_vector = Point(0, 0)

        att_vector.show_value()
        rep_vector.show_value()

        total_vector = total_potential_force(att_vector, rep_vector)
        # force_point = po
        # point_current.plot_line_between_two_point()
        # point_current.show_value()
        point_current.add_point(total_vector, STEP_SIZE)
        # point_current.show_value()
        path.append(Point(point_current.x, point_current.y))
        step += 1

    return path


# Parameter:
#   path contains a sequence of x y coordinate
# Return:
#   plot the sequence of dot on a figure
def plot_path(path):
    x = []
    y = []
    for p in path: