''' Purpose: generate an random colors over random spots on 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

# get number of pixels in img
nbr_pixels = w * h

# get number of pixel mutations
n = nbr_pixels // 2

for i in range( 0, n ) : # change n random pixels of img
    # generate a random location
    x = random.randrange( 0, w   )
    y = random.randrange( 0, h   )

    spot = (x, y )

    # generate a random colors
    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()