import pygame
import random

def initialize():
    """
    This function sets some global constants (i.e., the values of these global
    variables never change).
    """
    pygame.init()

    # set up the display window
    global width, height, screen
    width = 600
    height = 600
    screen = pygame.display.set_mode((width,height))



def run_game():

    # DEFINE GRID HERE
    
    cell_width = 50
    x_offset = 20
    y_offset = 20
    padding = 5

    # start clock
    clock = pygame.time.Clock()
    
    keepGoing = True

    while (keepGoing):

        dt = clock.tick()

        # go through all events that happened and check ...
        for event in pygame.event.get():
            
            # ... whether the event was a quit event
            if event.type == pygame.QUIT:
                keepGoing = False                


        # set background color
        screen.fill(pygame.color.Color("navy"))


        # update display
        pygame.display.update()


def done():
    
    pygame.quit()
    


def main():

    initialize()

    run_game()

    done()



main()