feat(sandbox): made BasicBallGame traceable

packages/pinball_components/sandbox/lib/stories/ball/basic_ball_game.dart

@@ -3,7 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 
-class BasicBallGame extends BasicGame with TapDetector {
+class BasicBallGame extends BasicGame with TapDetector, Traceable {
   BasicBallGame({required this.color});
 
   static const info = '''
@@ -19,5 +19,6 @@ class BasicBallGame extends BasicGame with TapDetector {
     add(
       Ball(baseColor: color)..initialPosition = info.eventPosition.game,
     );
+    traceAllBodies();
   }
 }

packages/pinball_components/sandbox/lib/stories/ball/stories.dart

@@ -12,7 +12,7 @@ void addBallStories(Dashbook dashbook) {
       (context) => GameWidget(
         game: BasicBallGame(
           color: context.colorProperty('color', Colors.blue),
-        ),
+        )..trace = context.boolProperty('Trace', true),
       ),
       codeLink: buildSourceLink('ball/basic.dart'),
       info: BasicBallGame.info,