""" Purpose: introduce some functions from module random
"""

# by default the random module produces different interactions every time we use it

import random # get access to random functions and capabilities by importing this module
# in this class, you will only be using choice(), seed(), and randrange()
# you will ALWAYS need to import random for using these functions

### get four integers
reply = input( "Enter four integers: " )

m1, n1, m2, n2 = reply.split()
m1 = int( m1 ) # casting the strings to numbers ( handed back from input() so they are strings )
n1 = int( n1 )
m2 = int( m2 )
n2 = int( n2 )

# random function randrange( x, y ) returns random integer from interval 
# x to y-1; which is written MATHEMATICALLY as [ x, y )

# **like nearly every other operation (range(), [:], etc., we go from x to y-1 / [ x, y )**
i1 = random.randrange( m1, n1 )
i2 = random.randrange( m1, n1 )
i3 = random.randrange( m1, n1 )
i4 = random.randrange( m1, n1 )

j1 = random.randrange( m2, n2 )
j2 = random.randrange( m2, n2 )
j3 = random.randrange( m2, n2 )
j4 = random.randrange( m2, n2 )

print()

print( "Four random values from [", m1, ",",  n1, "):",  i1, i2, i3, i4 )
print( "Four random values from [", m2, ",",  n2, "):",  j1, j2, j3, j4 )

print() # rachel added this for her own sanity

### get two integers
reply = input( "Enter two integers: " )

n1, n2 = reply.split()
n1 = int( n1 )
n2 = int( n2 )

# random function randrange( b ) when a given a single integer argument returns
# random integer from 0 to b-1. The value is also called a base b integer
    # there are many applications of getting a random number between 0 and a number
    # for example, colors are represented using rgb values, r,g, and b can vary between 0-255
    # we don't have to say ( 0, n ) starting at 0 is implied
    # this is also true for the range( n ) function! this will be a range from 0 to n-1 ; ( the range has a size n )

i1 = random.randrange( n1 )
i2 = random.randrange( n1 )
i3 = random.randrange( n1 )
i4 = random.randrange( n1 )

j1 = random.randrange( n2 )
j2 = random.randrange( n2 )
j3 = random.randrange( n2 )
j4 = random.randrange( n2 )

print()

print( "Four random values from interval [ 0,", n1, " ):", i1, i2, i3, i4 )
print( "Four random values from interval [ 0,", n2, "):",  j1, j2, j3, j4 )

print()
# summary: random.randrange( i, j )
    # returns a random number between i and ( j-1 ) -> number on the interval [ i, j )
# random.randrange( n )
    # returns a random number between 0 and ( n-1 ) -> number on the interval [ 0, n )
# these values can be forced by setting a seed with random.seed()
# there are many random number applications, they're all over video games for example!