import pygame
pygame.init()

okno = pygame.display.set_mode((500, 500))
pygame.display.set_caption("Snake")


class Snake:
    x = 50
    y = 50
    s = 5

    def prawo(self):
        self.x += self.s

    def lewo(self):
        self.x -= self.s

    def dol(self):
        self.y += self.s

    def gora(self):
        self.y -+ self.s


x = 50
y = 50
width = 20
height = 20
vel = 5
snake = 1


def _init_ (self):
    self.Snake = Snake()


gra = True

while gra:
    pygame.time.delay(100)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            gra = False

    keys = pygame.key.get_pressed()

    if keys[pygame.K_LEFT]:

        self.Snake.lewo()

    if keys[pygame.K_RIGHT]:
            x += vel

    if keys[pygame.K_UP]:
            y -= vel

    if keys[pygame.K_DOWN]:

             y += vel

    okno.fill((0, 0, 0))
    pygame.draw.rect(okno, (0, 255, 0), (x, y, width, height))
    pygame.display.update()
pygame.quit()