feat: plunger story

packages/pinball_components/sandbox/lib/main.dart

@@ -21,5 +21,6 @@ void main() {
   addChromeDinoStories(dashbook);
   addDashNestBumperStories(dashbook);
   addKickerStories(dashbook);
+  addPlungerStories(dashbook);
   runApp(dashbook);
 }

packages/pinball_components/sandbox/lib/stories/plunger/plunger_game.dart

@@ -0,0 +1,33 @@
+import 'package:flame/input.dart';
+import 'package:flutter/material.dart';
+import 'package:pinball_components/pinball_components.dart';
+import 'package:sandbox/common/common.dart';
+import 'package:sandbox/stories/ball/basic_ball_game.dart';
+
+class PlungerGame extends BasicBallGame with HasKeyboardHandlerComponents {
+  PlungerGame({
+    required this.trace,
+  }) : super(color: const Color(0xFFFF0000));
+
+  static const info = '''
+    Shows how Plunger is rendered.
+
+    - Activate the "trace" parameter to overlay the body.
+    - Tap anywhere on the screen to spawn a ball into the game.
+''';
+
+  final bool trace;
+
+  @override
+  Future<void> onLoad() async {
+    await super.onLoad();
+
+    final center = screenToWorld(camera.viewport.canvasSize! / 2);
+
+    final plunger = Plunger(compressionDistance: 29)
+      ..initialPosition = Vector2(center.x - (Kicker.size.x * 2), center.y);
+    await add(plunger);
+
+    if (trace) plunger.trace();
+  }
+}

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

@@ -0,0 +1,17 @@
+import 'package:dashbook/dashbook.dart';
+import 'package:flame/game.dart';
+import 'package:sandbox/common/common.dart';
+import 'package:sandbox/stories/plunger/plunger_game.dart';
+
+void addPlungerStories(Dashbook dashbook) {
+  dashbook.storiesOf('Plunger').add(
+        'Basic',
+        (context) => GameWidget(
+          game: PlungerGame(
+            trace: context.boolProperty('Trace', true),
+          ),
+        ),
+        codeLink: buildSourceLink('plunger_game/basic.dart'),
+        info: PlungerGame.info,
+      );
+}

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

@@ -5,4 +5,5 @@ export 'dash_nest_bumper/stories.dart';
 export 'effects/stories.dart';
 export 'flipper/stories.dart';
 export 'layer/stories.dart';
+export 'plunger/stories.dart';
 export 'spaceship/stories.dart';