anchor.diff:  }
   
   /// {@template bottom_wall_ball_contact_callback}
  -///
  -/// The [ContactCallback] responsible for indentifying when a [Ball]
  -/// has fall into the bottom of the board
  -///
  +/// Listens when a [Ball] falls into a [BottomWall].
   /// {@endtemplate}
   class BottomWallBallContactCallback extends ContactCallback<Ball, BottomWall> {
     @override
  
positive.code: }
  
  /// {@template bottom_wall}
  ///
  /// An specifc [Wall] used to create bottom boundary of the
  /// game board
  ///
  /// {@endtemplate}
  class BottomWall extends Wall {
    BottomWall(Forge2DGame game)
  
negative.code: import 'package:pinball/game/components/components.dart';
  
  /// {@template wall}
  /// A continuos generic and [BodyType.static] barrier that divides a game area.
  /// {@endtemplate}
  class Wall extends BodyComponent {
    Wall({
  