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"""This module contains a code example related to

Think Python, 2nd Edition

by Allen Downey

http://thinkpython2.com

Copyright 2015 Allen Downey

License: http://creativecommons.org/licenses/by/4.0/

"""

from __future__ import print_function, division

import copy

import math

from Point1 import Point, Rectangle

def distance_between_points(p1, p2):

"""Computes the distance between two Point objects.

p1: Point

p2: Point

returns: float

"""

dx = p1.x - p2.x

dy = p1.y - p2.y

dist = math.sqrt(dx**2 + dy**2)

return dist

def move_rectangle(rect, dx, dy):

"""Move the Rectangle by modifying its corner object.

rect: Rectangle object.

dx: change in x coordinate (can be negative).

dy: change in y coordinate (can be negative).

"""

rect.corner.x += dx

rect.corner.y += dy

def move_rectangle_copy(rect, dx, dy):

"""Move the Rectangle and return a new Rectangle object.

rect: Rectangle object.

dx: change in x coordinate (can be negative).

dy: change in y coordinate (can be negative).

returns: new Rectangle

"""

new = copy.deepcopy(rect)

move_rectangle(new, dx, dy)

return new

def main():

blank = Point()

blank.x = 0

blank.y = 0

grosse = Point()

grosse.x = 3

grosse.y = 4

print('distance', end=' ')

print(distance_between_points(grosse, blank))

box = Rectangle()

box.width = 100.0

box.height = 200.0

box.corner = Point()

box.corner.x = 50.0

box.corner.y = 50.0

print(box.corner.x)

print(box.corner.y)

print('move')

move_rectangle(box, 50, 100)

print(box.corner.x)

print(box.corner.y)

new_box = move_rectangle_copy(box, 50, 100)

print(new_box.corner.x)

print(new_box.corner.y)

if __name__ == '__main__':

main()