import pygame
import random
import math
pygame.init()

win = pygame.display.set_mode((500,500))
pygame.display.set_caption("")
var_1 = 0
var_2 = 0
y1 = 10

run = True
while run:
   

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False
        if event.type == pygame.KEYDOWN:
          if event.key == pygame.K_RETURN:
           pygame.image.save(win, "image.jpg")
    for i in range(0,500,100):
     pygame.draw.line(win, (255,255,255), [var_1+i, y1], [i+var_2, y1], 3)
    var_1 = var_1+1
    var_2=var_2-1
    y1 = y1 + 10   
    pygame.display.update() 

pygame.quit()