'''lecture_09_distance_template.py
Illustrates how return statements work
Oliver W. Layton
CS 151: Computational Thinking: Visual Media
Fall 2020
TODO:
1. Add return statement
2. Demo None: show what happens with assignment without return value
3. Simultaneous assignment: show returning absolute and Eucludean distance
4. Try adding int and tuple
'''
import math


# def distance(x, y):
#     '''Computes the Euclidean distance between x and y'''
#     dist = math.sqrt(x**2 + y**2)
#     return dist
#     # return math.sqrt(x**2 + y**2)
#     # math.sqrt(x**2 + y**2)


# # main code
# dist = 0
# x = 3
# y = 4
# dist123 = distance(x, y)
# print(dist123)
# if dist123 is None:
#     print('The value is None')
# else:
#     print('The value is', dist123)


def distance(x, y):
    '''Computes the Euclidean distance between x and y'''
    dist = math.sqrt(x**2 + y**2)
    absDiff = abs(x - y)
    return absDiff, dist


# main code
dist = 0
x = 3
y = 4
d1, d2 = distance(x, y)
# z = distance(x, y)
# print(z)
# print('keep going...')
# print(z + 1)
# print('d1', d1)
# print('d2', d2)
# print(absDiff)