diff --git a/examples/snake_example.py b/examples/snake_example.py
index af7bedd..6630dd7 100644
--- a/examples/snake_example.py
+++ b/examples/snake_example.py
@@ -21,6 +21,23 @@ class Direction(Enum):
     LEFT = 4
 
 
+def determine_snake_direction(event_key: int, snake_direction: Direction) -> Direction:
+    if event_key == pygame.K_UP and \
+            snake_direction != Direction.DOWN:
+        return Direction.UP
+    elif event_key == pygame.K_RIGHT and \
+            snake_direction != Direction.LEFT:
+        return Direction.RIGHT
+    elif event_key == pygame.K_DOWN and \
+            snake_direction != Direction.UP:
+        return Direction.DOWN
+    elif event_key == pygame.K_LEFT and \
+            snake_direction != Direction.RIGHT:
+        return Direction.LEFT
+    
+    return snake_direction
+
+
 def determine_snake_position(snake_direction: Direction, snake_head_top: int, snake_head_left: int) -> tuple:
     if snake_direction == Direction.UP:
         snake_head_top -= 1
@@ -38,7 +55,7 @@ def determine_snake_position(snake_direction: Direction, snake_head_top: int, sn
         snake_head_left -= 1
         if snake_head_left == -1:
             snake_head_left = 9
-    
+
     return snake_head_top, snake_head_left
 
 
@@ -85,18 +102,8 @@ def start_snake_example() -> None:
                 if event.key == pygame.K_ESCAPE:
                     running = False
                     break
-                if event.key == pygame.K_UP and \
-                        snake_direction != Direction.DOWN:
-                    snake_direction = Direction.UP
-                elif event.key == pygame.K_RIGHT and \
-                        snake_direction != Direction.LEFT:
-                    snake_direction = Direction.RIGHT
-                elif event.key == pygame.K_DOWN and \
-                        snake_direction != Direction.UP:
-                    snake_direction = Direction.DOWN
-                elif event.key == pygame.K_LEFT and \
-                        snake_direction != Direction.RIGHT:
-                    snake_direction = Direction.LEFT
+                
+                snake_direction = determine_snake_direction(event.key, snake_direction)
 
         # Draw border
         border = shape_factory.Rect(0, 0, grid.width_gap(0, 10),