movement as a seperate function

Interface/movement.py

@@ -0,0 +1,17 @@
+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:
+            if event.key == pygame.K_LEFT and x>(tile_width / 2):
+                x -= tile_width
+            if event.key == pygame.K_RIGHT and x<(grid_width-(tile_width / 2)):
+                x += tile_width
+            if event.key == pygame.K_UP and y>(tile_height / 2):
+                y -= tile_height
+            if event.key == pygame.K_DOWN and y<(grid_height-(tile_height / 2)):
+                y += tile_height
+    return(x,y)