import pygame
import sys


def moving_cleaner(grid_width, grid_height, tile_width, tile_height, x, y):
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        if event.type == pygame.KEYDOWN:
            # go left
            if event.key == pygame.K_LEFT and x > (tile_width / 2):
                x -= tile_width

            # go right
            if event.key == pygame.K_RIGHT and x < (grid_width - (tile_width / 2)):
                x += tile_width

            # go up
            if event.key == pygame.K_UP and y > (tile_height / 2):
                y -= tile_height

            # go down
            if event.key == pygame.K_DOWN and y < (grid_height - (tile_height / 2)):
                y += tile_height
    return (x, y)