import pygame

from random import randint,seed

import datetime

class Ball():

def __init__(self,screen):

self.radius = randint(5,20)

seed(datetime.datetime.now())

self.color = (randint(0,250),randint(0,250),randint(0,250))

self.x = randint(100,1500)

self.y = randint(100,1000)

self.direction_x = randint(-5,5)

self.direction_y = randint(-4,4)

self.screen = screen

def draw(self):

pygame.draw.circle(self.screen,self.color,[self.x,self.y],self.radius)

pygame.init()

screen = pygame.display.set_mode((1280,720))

tick = 0

balls = []

for i in range(0,250):

balls.append(Ball(screen))

while True:

for event in pygame.event.get():

if event.type == pygame.QUIT:

exit()

if tick%5 == 0:

screen.fill((0,0,0))

screen.fill((0,0,0))

for ball in balls:

if ball.x > 1280 or ball.x < 0:

ball.direction_x = -ball.direction_x

if ball.y > 720 or ball.y < 0:

ball.direction_y = -ball.direction_y

ball.x += ball.direction_x

ball.y += ball.direction_y

ball.draw()

pygame.display.update()

tick +=1

pygame.time.Clock().tick(60)