refactor: move to package and test

lib/game/components/components.dart

@@ -6,7 +6,6 @@ export 'flipper_controller.dart';
 export 'flutter_forest.dart';
 export 'jetpack_ramp.dart';
 export 'kicker.dart';
-export 'launcher_ramp.dart';
 export 'plunger.dart';
 export 'score_points.dart';
 export 'spaceship_exit_rail.dart';

lib/game/game_assets.dart

@@ -15,6 +15,10 @@ extension PinballGameAssetsX on PinballGame {
       images.load(components.Assets.images.baseboard.right.keyName),
       images.load(components.Assets.images.spaceshipSaucer.keyName),
       images.load(components.Assets.images.spaceshipBridge.keyName),
+      images.load(components.Assets.images.launchRamp.ramp.keyName),
+      images.load(
+        components.Assets.images.launchRamp.foregroundRailing.keyName,
+      ),
       images.load(Assets.images.components.background.path),
       images.load(Assets.images.components.launchRamp.launchRamp.path),
       images.load(Assets.images.components.launchRamp.launchRailFG.path),

lib/game/pinball_game.dart

@@ -35,7 +35,7 @@ class PinballGame extends Forge2DGame
     unawaited(add(Board()));
     unawaited(_addPlunger());
     unawaited(_addBonusWord());
-    unawaited(_addPaths());
+    unawaited(_addRamps());
     unawaited(
       addFromBlueprint(
         Spaceship(
@@ -86,9 +86,9 @@ class PinballGame extends Forge2DGame
     );
   }
 
-  Future<void> _addPaths() async {
+  Future<void> _addRamps() async {
     unawaited(addFromBlueprint(Jetpack()));
-    unawaited(addFromBlueprint(Launcher()));
+    unawaited(addFromBlueprint(LaunchRamp()));
   }
 
   void spawnBall() {

packages/pinball_components/lib/gen/assets.gen.dart

@@ -21,6 +21,9 @@ class $AssetsImagesGen {
   AssetGenImage get flutterSignPost =>
       const AssetGenImage('assets/images/flutter_sign_post.png');
 
+  $AssetsImagesLaunchRampGen get launchRamp =>
+      const $AssetsImagesLaunchRampGen();
+
   /// File path: assets/images/spaceship_bridge.png
   AssetGenImage get spaceshipBridge =>
       const AssetGenImage('assets/images/spaceship_bridge.png');
@@ -54,6 +57,18 @@ class $AssetsImagesFlipperGen {
       const AssetGenImage('assets/images/flipper/right.png');
 }
 
+class $AssetsImagesLaunchRampGen {
+  const $AssetsImagesLaunchRampGen();
+
+  /// File path: assets/images/launch_ramp/foreground-railing.png
+  AssetGenImage get foregroundRailing =>
+      const AssetGenImage('assets/images/launch_ramp/foreground-railing.png');
+
+  /// File path: assets/images/launch_ramp/ramp.png
+  AssetGenImage get ramp =>
+      const AssetGenImage('assets/images/launch_ramp/ramp.png');
+}
+
 class Assets {
   Assets._();
 

packages/pinball_components/lib/src/components/components.dart

@@ -7,6 +7,7 @@ export 'flipper.dart';
 export 'flutter_sign_post.dart';
 export 'initial_position.dart';
 export 'joint_anchor.dart';
+export 'launch_ramp.dart';
 export 'layer.dart';
 export 'ramp_opening.dart';
 export 'shapes/shapes.dart';

packages/pinball_components/lib/src/components/launch_ramp.dart

@@ -4,44 +4,43 @@ import 'dart:math' as math;
 
 import 'package:flame/components.dart';
 import 'package:flame_forge2d/flame_forge2d.dart';
-import 'package:pinball/gen/assets.gen.dart';
-import 'package:pinball_components/pinball_components.dart' hide Assets;
+import 'package:pinball_components/pinball_components.dart';
 
-/// {@template launcher}
-/// A [Blueprint] which creates the [LauncherRamp] and
-/// [LauncherForegroundRailing].
+/// {@template launch_ramp}
+/// A [Blueprint] which creates the [_LaunchRampBase] and
+/// [_LaunchRampForegroundRailing].
 /// {@endtemplate}
-class Launcher extends Forge2DBlueprint {
+class LaunchRamp extends Forge2DBlueprint {
   @override
   void build(_) {
     addAllContactCallback([
-      RampOpeningBallContactCallback<_LauncherExit>(),
+      RampOpeningBallContactCallback<_LaunchRampExit>(),
     ]);
 
-    final launcherRamp = LauncherRamp()..layer = Layer.launcher;
+    final launchRampBase = _LaunchRampBase()..layer = Layer.launcher;
 
-    final launcherForegroundRailing = LauncherForegroundRailing()
+    final launchRampForegroundRailing = _LaunchRampForegroundRailing()
       ..layer = Layer.launcher;
 
-    final launcherExit = _LauncherExit(rotation: math.pi / 2)
+    final launchRampExit = _LaunchRampExit(rotation: math.pi / 2)
       ..initialPosition = Vector2(1.8, 34.2)
       ..layer = Layer.opening
       ..renderBody = false;
 
     addAll([
-      launcherRamp,
-      launcherForegroundRailing,
-      launcherExit,
+      launchRampBase,
+      launchRampForegroundRailing,
+      launchRampExit,
     ]);
   }
 }
 
-/// {@template launcher_ramp}
+/// {@template launch_ramp_base}
 /// Ramp the [Ball] is launched from at the beginning of each ball life.
 /// {@endtemplate}
-class LauncherRamp extends BodyComponent with InitialPosition, Layered {
-  /// {@macro launcher_ramp}
-  LauncherRamp() : super(priority: -1) {
+class _LaunchRampBase extends BodyComponent with InitialPosition, Layered {
+  /// {@macro launch_ramp_base}
+  _LaunchRampBase() : super(priority: -1) {
     layer = Layer.launcher;
   }
 
@@ -106,7 +105,7 @@ class LauncherRamp extends BodyComponent with InitialPosition, Layered {
     await super.onLoad();
 
     final sprite = await gameRef.loadSprite(
-      Assets.images.components.launchRamp.launchRamp.path,
+      Assets.images.launchRamp.ramp.keyName,
     );
     final spriteComponent = SpriteComponent(
       sprite: sprite,
@@ -133,13 +132,13 @@ class LauncherRamp extends BodyComponent with InitialPosition, Layered {
   }
 }
 
-/// {@template launcher_foreground_railing}
-/// Foreground railing for the [LauncherRamp] to render in front of the [Ball].
+/// {@template launch_ramp_foreground_railing}
+/// Foreground railing for the [_LaunchRampBase] to render in front of the [Ball].
 /// {@endtemplate}
-class LauncherForegroundRailing extends BodyComponent
+class _LaunchRampForegroundRailing extends BodyComponent
     with InitialPosition, Layered {
-  /// {@macro launcher_foreground_railing}
-  LauncherForegroundRailing() : super(priority: 4) {
+  /// {@macro launch_ramp_foreground_railing}
+  _LaunchRampForegroundRailing() : super(priority: 4) {
     layer = Layer.launcher;
   }
 
@@ -179,7 +178,7 @@ class LauncherForegroundRailing extends BodyComponent
     await super.onLoad();
 
     final sprite = await gameRef.loadSprite(
-      Assets.images.components.launchRamp.launchRailFG.path,
+      Assets.images.launchRamp.foregroundRailing.keyName,
     );
     final spriteComponent = SpriteComponent(
       sprite: sprite,
@@ -207,13 +206,13 @@ class LauncherForegroundRailing extends BodyComponent
   }
 }
 
-/// {@template launcher_exit}
+/// {@template launch_ramp_exit}
 /// [RampOpening] with [Layer.launcher] to filter [Ball]s exiting the
-/// [Launcher].
+/// [LaunchRamp].
 /// {@endtemplate}
-class _LauncherExit extends RampOpening {
-  /// {@macro launcher_exit}
-  _LauncherExit({
+class _LaunchRampExit extends RampOpening {
+  /// {@macro launch_ramp_exit}
+  _LaunchRampExit({
     required double rotation,
   })  : _rotation = rotation,
         super(

packages/pinball_components/pubspec.yaml

@@ -28,6 +28,7 @@ flutter:
     - assets/images/
     - assets/images/baseboard/
     - assets/images/flipper/
+    - assets/images/launch_ramp/
 
 flutter_gen:
   line_length: 80

packages/pinball_components/test/src/components/launch_ramp_test.dart

@@ -0,0 +1,30 @@
+// ignore_for_file: cascade_invocations
+
+import 'package:flame_forge2d/flame_forge2d.dart';
+import 'package:flame_test/flame_test.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pinball_components/pinball_components.dart';
+
+import '../../helpers/helpers.dart';
+
+void main() {
+  group('LaunchRamp', () {
+    final tester = FlameTester(TestGame.new);
+
+    tester.testGameWidget(
+      'renders correctly',
+      setUp: (game, tester) async {
+        await game.addFromBlueprint(LaunchRamp());
+        await game.ready();
+        game.camera.followVector2(Vector2.zero());
+        game.camera.zoom = 4.1;
+      },
+      verify: (game, tester) async {
+        await expectLater(
+          find.byGame<Forge2DGame>(),
+          matchesGoldenFile('golden/launch-ramp.png'),
+        );
+      },
+    );
+  });
+}