''' Purpose: generate random colors over a user-specified selfie
'''

from PIL import Image

import random

import image_support 

# get selfie of interest
reply = input( "Enter computing id: " )
who   = reply.strip().lower()

img = image_support.get_selfie( who ); 

# get selfie dimensions
w, h = img.size

for x in range( 0, w, 2 ) : # examining pixels in a rightward sweep
    for y in range( 0, h, 2 ) : # process for a given x from top to bottom

        # use the x and y combination as spot on the picture
        spot = ( x, y )

        # generate a random color for the spot

        r = random.randrange( 0, 256 )
        g = random.randrange( 0, 256 )
        b = random.randrange( 0, 256 )

        c = ( r, g, b )
    
        # set the img pixel at spot to color c 
        img.putpixel( spot, c )

# show image
img.show()