def move(self):
old_x, old_y = self.snake[-1]
dir_x, dir_y = self.snake_direction
new_x = old_x + dir_x
new_y = old_y + dir_y
# Kontrola vylezení z hrací plochy
new_x = new_x % self.width
new_y = new_y % self.height
new_head = new_x, new_y
self.snake.append(new_head)
if new_head in self.food:
self.food.remove(new_head)
else:
del self.snake[0]