def __init__(self, window):
super(Credits, self).__init__(window)
self.surface = pygame.Surface(window.size)
self.text_surface = pygame.Surface(window.size)
for i, line in enumerate(CREDITS.split("\n")):
line_surface = Credits.FONT.render(line, True, (255, 255, 255))
self.text_surface.blit(line_surface, (50, i * 20))
self.back_button = Button(self.window.width / 2, self.window.height - 100, _("back"), self.back)
