import pygame

# Define some colors
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)
RED = (255, 0, 0)

def drow_background(screen):
    screen.fill(WHITE)

def drow_item(screen,x,y):
    pygame.draw.rect(screen, GREEN, [0+x,0+y,30,10],0)
    pygame.draw.circle(screen, BLACK, [15+x,5+y],7,0)

pygame.init()

# Set the width and height of the screen [width, height]
size = (700, 500)
screen = pygame.display.set_mode(size)

pygame.display.set_caption("My Game")

# Loop until the user clicks the close button.
done = False

# Used to manage how fast the screen updates
clock = pygame.time.Clock()

# Main Program Loop
while not done:
    # Main event loop
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            done = True

    drow_background(screen)

    # get the current mouse position
    pos = pygame.mouse.get_pos()

    x = pos[0]
    y = pos[1]

    # drow item
    drow_item(screen,x,y)

    # go ahead and update the screen with what we've drawn
    pygame.display.flip()

    # limit to 60 frames per second
    clock.tick(60)

# Close the window and quit
pygame.quit()