#!/usr/bin/env python

#
# a simple point class example
# 
# written by e.bonakdarian  december 2010
#

from math import sqrt

class Point():
    # initialize point with x and y val
    def __init__(self, xval, yval):
        self.x = xval
        self.y = yval


    def get_x(self):
        # return x coordinate
        return self.x


    def get_y(self):
        # return y coordinate
        return self.y


    def set_x(self, x):
        # set x coordinate
        self.x = x


    def set_y(self, y):
        # set y coordinate
        self.y = y


    def set_xy(self, x, y):
        # set y coordinate
        self.x = x
        self.y = y


    def distance(self, other_x, other_y):
        # compute the distance between this point
        # and the other point on the plane

        x_diff = other_x - self.x
        y_diff = other_y - self.y

        dist = sqrt((x_diff**2) + (y_diff**2))
        return dist


    def p_distance(self, other_point):
        # compute the distance between this point
        # and the other point on the plane

        x_diff = other_point.get_x() - self.x
        y_diff = other_point.get_y() - self.y

        dist = sqrt((x_diff**2) + (y_diff**2))
        return dist


    def show(self):
        print self.x, self.y,

    
if __name__ == '__main__':
    pointA = Point(0, 0)
    pointB = Point(1, 1)

    print 'Point A: ', 
    pointA.show()
    print
    print 'Point B: ', 
    pointB.show()
    print

    distance = pointA.distance(pointB.get_x(), pointB.get_y())
    print 'distance between point A and point B is %.2f' % distance

    distance = pointB.distance(pointA.get_x(), pointA.get_y())
    print 'distance between point B and point A is %.2f' % distance
    print

    pointA.set_xy(10, 10)
    print 'Point A: ', 
    pointA.show()
    print
    print 'Point B: ', 
    pointB.show()
    print

    print 'distance between point B and point A is %.2f' % pointB.p_distance(pointA)