Tony Gaddis Python

checkerBoard.py

# This program makes a checkerboard pattern using functions.

import turtle

# Width of one square.
WIDTH = 60
NUM_ROWS = 8

def main():
    turtle.hideturtle()
    color_flag = 1
    for row in range(NUM_ROWS):
        if NUM_ROWS % 2 == 0:
            color_flag += 1
        for col in range(NUM_ROWS):
            color_flag += 1
            if color_flag % 2 == 0:
                my_color = 'black'
            else:
                my_color = 'white'
            square(WIDTH * row - NUM_ROWS * WIDTH / 2, \
                   WIDTH * col - NUM_ROWS * WIDTH / 2, \
                   WIDTH, my_color)

def square(x, y, width, color):
    turtle.speed(0)
    turtle.penup()
    turtle.goto(x, y)
    turtle.fillcolor(color)
    turtle.pendown()
    turtle.begin_fill()
    for count in range(4):
        turtle.forward(width)
        turtle.left(90)
    turtle.end_fill()
    return square
        
# Start Program
main()