---

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                move_right = True
            if event.key == pygame.K_LEFT:
                move_left = True
        elif event.type == pygame.KEYUP:
            if event.key == pygame.K_RIGHT:
                move_right = False

            if event.key == pygame.K_LEFT:
                move_left = False

    if move_right:
        platform.rect.x += 3

    if move_left:
        platform.rect.x -= 3