diff --git a/Interface/movement.py b/Interface/movement.py
index 546c8f5..63eaed4 100644
--- a/Interface/movement.py
+++ b/Interface/movement.py
@@ -2,24 +2,24 @@ import pygame
 import sys
 
 
-def robot_movement(grid_width, grid_height, tile_width, tile_height, x, y):
+def movement_key_press(board_size, 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
+            if event.key == pygame.K_LEFT and x > 0:
+                x -= 1
 
-            # go right
-            if event.key == pygame.K_RIGHT and x < (grid_width - (tile_width / 2)):
-                x += tile_width
+                # go right
+            if event.key == pygame.K_RIGHT and x < board_size - 1:
+                x += 1
 
-            # go up
-            if event.key == pygame.K_UP and y > (tile_height / 2):
-                y -= tile_height
+                # go up
+            if event.key == pygame.K_UP and y > 0:
+                y -= 1
 
-            # go down
-            if event.key == pygame.K_DOWN and y < (grid_height - (tile_height / 2)):
-                y += tile_height
+                # go down
+            if event.key == pygame.K_DOWN and y < board_size - 1:
+                y += 1
     return (x, y)
diff --git a/Interface/vacuum_render.py b/Interface/vacuum_render.py
index 38eaee0..a4fca0d 100644
--- a/Interface/vacuum_render.py
+++ b/Interface/vacuum_render.py
@@ -3,7 +3,7 @@ from typing import List
 from Interface.grid_draw import GridDraw, Colors
 import sys
 import pygame
-from Interface.movement import robot_movement
+from Interface.movement import movement_key_press
 
 
 # window_dimensions says how many pixels window have
@@ -18,23 +18,30 @@ def initial_draw(window_dimensions, board_size):
     # initialize board array
     newGrid = Grid(board_size)
     newGrid.add(objectOnTile(1, 1, acceptedType.PLAYER))
+    player = newGrid.findFirst(acceptedType.PLAYER)
+    newGrid.move(1, 1, 1, 2)
+    newGrid.move(1, 2, 1, 1)
 
     # set window dimension
     window_width = window_dimensions
     window_height = window_dimensions
 
-    # FIXME @countingthedots: please tell me what is going on there and why???
-    #
-    renderer = GridDraw(window_width, window_height)
+    # initialize drawer
+    drawer = GridDraw(window_width, window_height)
 
     # rendering loop
     while True:
-        renderer.start_draw()
-        renderer.board(board_size, board_size)
+        drawer.start_draw()
+        drawer.board(board_size, board_size)
 
-        newGrid.render(renderer, window_dimensions, board_size)
+        player = newGrid.findFirst(acceptedType.PLAYER)
 
-        renderer.end_draw()
+        (x, y) = movement_key_press(board_size, player.position_x, player.position_y)
+
+        newGrid.move(player.position_x, player.position_y, x, y)
+
+        newGrid.render(drawer, window_dimensions, board_size)
+        drawer.end_draw()
         pygame.time.delay(30)
 
 
@@ -68,7 +75,7 @@ class Grid:
         self.list: List[objectOnTile] = []
 
     # render the array
-    def render(self, renderer: GridDraw, window_dimensions, board_size):
+    def render(self, drawer: GridDraw, window_dimensions, board_size):
         tile_size = window_dimensions / board_size
 
         # render object with respect to type
@@ -87,7 +94,7 @@ class Grid:
                 )
 
                 # image rendering function
-                renderer.circle(
+                drawer.circle(
                     render_x,
                     render_y,
                     tile_size / PLAYER_RADIUS_RATIO,
@@ -109,7 +116,9 @@ class Grid:
         self.array[newObject.position_x][newObject.position_y] = newObject
         self.list.append(newObject)
 
-    def delete(self, position_x, position_y):
+    # deletes object from game
+    # untested, potentially not working
+    def delete(self, position_x: int, position_y: int):
         # Find the object with the given position in the list
         for obj in self.list:
             if obj.position_x == position_x and obj.position_y == position_y:
@@ -123,22 +132,38 @@ class Grid:
         self.array[position_x][position_y] = objectOnTile(position_x, position_y)
         self.list.remove(obj)
 
-    # TODO update: update position from (start_x, start_y) to (end_x, end_y)
-    def update(self, start_x, start_y, end_x, end_y):
+    # move: update position from (start_x, start_y) to (end_x, end_y)
+    def move(self, start_x: int, start_y: int, end_x: int, end_y: int):
+        # no change
+        if start_x == end_x and start_y == end_y:
+            return
+
         # check if obj exist at starting position
         if self.array[start_x][start_y].type == acceptedType.EMPTY:
             print(
                 f"Cannot move object at ({start_x}, {start_y}): no object on position"
             )
             return
+
         # check if destination is empty
         if self.array[end_x][end_y].type != acceptedType.EMPTY:
             print(
                 f"Cannot move object to ({end_x}, {end_y}): position already occupied"
             )
             return
-        # all OK
-        self.array[end_x][end_y].type = self.array[start_x][start_y].type
-        self.array[start_x][start_y].type = acceptedType.EMPTY
 
-    # TODO change movement to work with arrays
+        # all OK
+        # change position attribute in array
+        self.array[start_x][start_y].position_x = end_x
+        self.array[start_x][start_y].position_y = end_y
+
+        # change position in array
+        self.array[end_x][end_y] = self.array[start_x][start_y]
+        self.array[start_x][start_y] = objectOnTile(start_x, start_y)
+
+    def findFirst(self, find_type: acceptedType) -> objectOnTile:
+        for item in self.list:
+            if item.type == find_type:
+                return item
+        else:
+            print(f"Cannot find object of type: ({find_type})!")