chore: trace all bodies in sandbox (#157)

* feat: add traceAllBodies method

* chore: update tracing stories

* refactor: use for each

* refactor: convert to mixin

* refactor: simplify mixin

packages/pinball_components/sandbox/lib/common/trace.dart

@@ -24,3 +24,18 @@ extension BodyTrace on BodyComponent {
     );
   }
 }
+
+mixin Traceable on Forge2DGame {
+  late final bool trace;
+
+  Future<void> traceAllBodies({
+    Color color = const Color(0xFFFF0000),
+  }) async {
+    if (trace) {
+      await ready();
+      children
+          .whereType<BodyComponent>()
+          .forEach((bodyComponent) => bodyComponent.trace());
+    }
+  }
+}

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

@@ -5,10 +5,8 @@ import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 import 'package:sandbox/stories/ball/basic_ball_game.dart';
 
-class BigDashNestBumperGame extends BasicBallGame {
-  BigDashNestBumperGame({
-    required this.trace,
-  }) : super(color: const Color(0xFF0000FF));
+class BigDashNestBumperGame extends BasicBallGame with Traceable {
+  BigDashNestBumperGame() : super(color: const Color(0xFF0000FF));
 
   static const info = '''
     Shows how a BigDashNestBumper is rendered.
@@ -16,8 +14,6 @@ class BigDashNestBumperGame extends BasicBallGame {
     Activate the "trace" parameter to overlay the body.
 ''';
 
-  final bool trace;
-
   @override
   Future<void> onLoad() async {
     await super.onLoad();
@@ -28,6 +24,6 @@ class BigDashNestBumperGame extends BasicBallGame {
       ..priority = 1;
     await add(bigDashNestBumper);
 
-    if (trace) bigDashNestBumper.trace();
+    await traceAllBodies();
   }
 }

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

@@ -8,9 +8,8 @@ void addDashNestBumperStories(Dashbook dashbook) {
   dashbook.storiesOf('Dash Nest Bumpers').add(
         'Big',
         (context) => GameWidget(
-          game: BigDashNestBumperGame(
-            trace: context.boolProperty('Trace', true),
-          ),
+          game: BigDashNestBumperGame()
+            ..trace = context.boolProperty('Trace', true),
         ),
         codeLink: buildSourceLink('dash_nest_bumper/big.dart'),
         info: BasicBallGame.info,

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

@@ -6,10 +6,8 @@ import 'package:sandbox/common/common.dart';
 
 import 'package:sandbox/stories/ball/basic_ball_game.dart';
 
-class FlipperGame extends BasicBallGame with KeyboardEvents {
-  FlipperGame({
-    required this.trace,
-  }) : super(color: Colors.blue);
+class FlipperGame extends BasicBallGame with KeyboardEvents, Traceable {
+  FlipperGame() : super(color: Colors.blue);
 
   static const info = '''
     Shows how Flippers are rendered.
@@ -30,8 +28,6 @@ class FlipperGame extends BasicBallGame with KeyboardEvents {
     LogicalKeyboardKey.keyD,
   ];
 
-  final bool trace;
-
   late Flipper leftFlipper;
   late Flipper rightFlipper;
 
@@ -51,10 +47,7 @@ class FlipperGame extends BasicBallGame with KeyboardEvents {
       rightFlipper,
     ]);
 
-    if (trace) {
-      leftFlipper.trace();
-      rightFlipper.trace();
-    }
+    await traceAllBodies();
   }
 
   @override

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

@@ -7,9 +7,7 @@ void addFlipperStories(Dashbook dashbook) {
   dashbook.storiesOf('Flipper').add(
         'Basic',
         (context) => GameWidget(
-          game: FlipperGame(
-            trace: context.boolProperty('Trace', true),
-          ),
+          game: FlipperGame()..trace = context.boolProperty('Trace', true),
         ),
         codeLink: buildSourceLink('flipper/basic.dart'),
         info: FlipperGame.info,

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

@@ -3,10 +3,8 @@ import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 import 'package:sandbox/stories/ball/basic_ball_game.dart';
 
-class KickerGame extends BasicBallGame {
-  KickerGame({
-    required this.trace,
-  }) : super(color: const Color(0xFFFF0000));
+class KickerGame extends BasicBallGame with Traceable {
+  KickerGame() : super(color: const Color(0xFFFF0000));
 
   static const info = '''
     Shows how Kickers are rendered.
@@ -15,8 +13,6 @@ class KickerGame extends BasicBallGame {
     - Tap anywhere on the screen to spawn a ball into the game.
 ''';
 
-  final bool trace;
-
   @override
   Future<void> onLoad() async {
     await super.onLoad();
@@ -31,9 +27,6 @@ class KickerGame extends BasicBallGame {
       ..initialPosition = Vector2(center.x + (Kicker.size.x * 2), center.y);
     await add(rightKicker);
 
-    if (trace) {
-      leftKicker.trace();
-      rightKicker.trace();
-    }
+    await traceAllBodies();
   }
 }

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

@@ -7,9 +7,7 @@ void addKickerStories(Dashbook dashbook) {
   dashbook.storiesOf('Kickers').add(
         'Basic',
         (context) => GameWidget(
-          game: KickerGame(
-            trace: context.boolProperty('Trace', true),
-          ),
+          game: KickerGame()..trace = context.boolProperty('Trace', true),
         ),
         codeLink: buildSourceLink('kicker_game/basic.dart'),
         info: KickerGame.info,

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

@@ -1,14 +1,10 @@
-import 'dart:math' as math;
-
 import 'package:flame/extensions.dart';
 import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 import 'package:sandbox/stories/ball/basic_ball_game.dart';
 
-class SlingshotGame extends BasicBallGame {
-  SlingshotGame({
-    required this.trace,
-  }) : super(color: const Color(0xFFFF0000));
+class SlingshotGame extends BasicBallGame with Traceable {
+  SlingshotGame() : super(color: const Color(0xFFFF0000));
 
   static const info = '''
     Shows how Slingshots are rendered.
@@ -17,50 +13,11 @@ class SlingshotGame extends BasicBallGame {
     - 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 leftUpperSlingshot = Slingshot(
-      length: 5.66,
-      angle: -1.5 * (math.pi / 180),
-      spritePath: Assets.images.slingshot.leftUpper.keyName,
-    )..initialPosition = center + Vector2(-29, 1.5);
-
-    final leftLowerSlingshot = Slingshot(
-      length: 3.54,
-      angle: -29.1 * (math.pi / 180),
-      spritePath: Assets.images.slingshot.leftLower.keyName,
-    )..initialPosition = center + Vector2(-31, -6.2);
-
-    final rightUpperSlingshot = Slingshot(
-      length: 5.64,
-      angle: 1 * (math.pi / 180),
-      spritePath: Assets.images.slingshot.rightUpper.keyName,
-    )..initialPosition = center + Vector2(22.3, 1.58);
-
-    final rightLowerSlingshot = Slingshot(
-      length: 3.46,
-      angle: 26.8 * (math.pi / 180),
-      spritePath: Assets.images.slingshot.rightLower.keyName,
-    )..initialPosition = center + Vector2(24.7, -6.2);
-
-    await addAll([
-      leftUpperSlingshot,
-      leftLowerSlingshot,
-      rightUpperSlingshot,
-      rightLowerSlingshot,
-    ]);
-
-    if (trace) {
-      leftUpperSlingshot.trace();
-      leftLowerSlingshot.trace();
-      rightUpperSlingshot.trace();
-      rightLowerSlingshot.trace();
-    }
+    await addFromBlueprint(Slingshots());
+    camera.followVector2(Vector2.zero());
+    await traceAllBodies();
   }
 }

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

@@ -7,9 +7,7 @@ void addSlingshotStories(Dashbook dashbook) {
   dashbook.storiesOf('Slingshots').add(
         'Basic',
         (context) => GameWidget(
-          game: SlingshotGame(
-            trace: context.boolProperty('Trace', true),
-          ),
+          game: SlingshotGame()..trace = context.boolProperty('Trace', true),
         ),
         codeLink: buildSourceLink('slingshot_game/basic.dart'),
         info: SlingshotGame.info,

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

@@ -5,10 +5,8 @@ import 'package:pinball_components/pinball_components.dart';
 import 'package:sandbox/common/common.dart';
 import 'package:sandbox/stories/ball/basic_ball_game.dart';
 
-class SparkyBumperGame extends BasicBallGame {
-  SparkyBumperGame({
-    required this.trace,
-  }) : super(color: const Color(0xFF0000FF));
+class SparkyBumperGame extends BasicBallGame with Traceable {
+  SparkyBumperGame() : super(color: const Color(0xFF0000FF));
 
   static const info = '''
     Shows how a SparkyBumper is rendered.
@@ -16,8 +14,6 @@ class SparkyBumperGame extends BasicBallGame {
     Activate the "trace" parameter to overlay the body.
 ''';
 
-  final bool trace;
-
   @override
   Future<void> onLoad() async {
     await super.onLoad();
@@ -38,10 +34,6 @@ class SparkyBumperGame extends BasicBallGame {
       sparkyBumperC,
     ]);
 
-    if (trace) {
-      sparkyBumperA.trace();
-      sparkyBumperB.trace();
-      sparkyBumperC.trace();
-    }
+    await traceAllBodies();
   }
 }

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

@@ -7,9 +7,7 @@ void addSparkyBumperStories(Dashbook dashbook) {
   dashbook.storiesOf('Sparky Bumpers').add(
         'Basic',
         (context) => GameWidget(
-          game: SparkyBumperGame(
-            trace: context.boolProperty('Trace', true),
-          ),
+          game: SparkyBumperGame()..trace = context.boolProperty('Trace', true),
         ),
         codeLink: buildSourceLink('sparky_bumper/basic.dart'),
         info: SparkyBumperGame.info,