import pygame
import random
import math
pygame.init()

win = pygame.display.set_mode((500,500))
pygame.display.set_caption("")
angle = 0
angleStep = 10
x = 250
y = 250

run = True

while run:
    pygame.time.delay(100)

    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")
    angle+=5
    x1 = x + math.cos(math.radians(angle)) * 50;
    y1 = y + math.sin(math.radians(angle)) * 50;
    angle += angleStep;
    x2 = x - math.cos(math.radians(angle)) * 50;
    y2 = y - math.sin(math.radians(angle)) * 50;
    
    pygame.draw.line(win,(255,255,255), [x1, y1], [x2, y2], 1)
    
    pygame.display.update() 
    if (angle == 360):
     angle = 0
     y = y + 10

pygame.quit()