rector.py

import pygame
import random
 
# Define some colors
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)
RED = (255, 0, 0)
class Rectangle():
    def __init__(self):
        self.x = random.randrange(700)
        self.y = random.randrange(500)
        self.change_x = random.randrange(-3,4)
        self.change_y = random.randrange(-3,4)
        self.size_x= random.randrange(20,71)
        self.size_y= random.randrange(20,71)
        self.color = [0,255,0]
    def move(self):
        self.x += self.change_x
        self.y += self.change_y
    def draw(self, screen):
        pygame.draw.rect(screen, self.color, [self.x, self.y, self.size_x, self.size_y],0)

rectanglelist = []
for i in range(10):
    x = Rectangle()
    rectanglelist.append(x)

 
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
 
    # --- Game logic should go here
 
    # --- Screen-clearing code goes here
 
    # Here, we clear the screen to white. Don't put other drawing commands
    # above this, or they will be erased with this command.\
    for i in rectanglelist:
        i.move()
    
 
 
    # If you want a background image, replace this clear with blit'ing the
    # background image.
    screen.fill(BLACK)
    for i in rectanglelist:
        i.draw(screen)
    # --- Drawing code should go here
 
    # --- 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()