text: import sys
  from pacmangame.point import Point
  from pacmangame import constants
  
  import arcade
  
  class ArcadeInputService:
      """Detects player input. The responsibility of the class of objects is to detect and communicate player keypresses.
  
      Stereotype: 
          Service Provider
  
      Attributes:
          _keys (list): up, dn, lt, rt.
      """
  
      def __init__(self):
          """The class constructor."""
          self._keys = []
      
      def set_key(self, key, modifiers):
          #Ignoring modifies ar this point...
          self._keys.append(key)
  
      def remove_key(self, key, modifiers):
          self._keys.remove(key)
  
      def get_direction(self):
          """Gets the selected direction for the given player.
  
          Returns:
              Point: The selected direction.
          """
          x = 0
          y = 0
  
          if arcade.key.LEFT in self._keys:
              x = -1
              
             
          elif arcade.key.RIGHT in self._keys:
              x = 1
              
  
          if arcade.key.UP in self._keys:
              y = 1
              
          elif arcade.key.DOWN in self._keys:
              y = -1
              
  
          velocity = Point(x, y)
          return velocity
  