Merge branch 'main' into feat/sparky-animatronic

lib/game/components/wall.dart

@@ -39,22 +39,6 @@ class Wall extends BodyComponent {
   }
 }
 
-/// Create top, left, and right [Wall]s for the game board.
-List<Wall> createBoundaries(Forge2DGame game) {
-  final topLeft = BoardDimensions.bounds.topLeft.toVector2() + Vector2(18.6, 0);
-  final bottomRight = BoardDimensions.bounds.bottomRight.toVector2();
-
-  final topRight =
-      BoardDimensions.bounds.topRight.toVector2() - Vector2(18.6, 0);
-  final bottomLeft = BoardDimensions.bounds.bottomLeft.toVector2();
-
-  return [
-    Wall(start: topLeft, end: topRight),
-    Wall(start: topRight, end: bottomRight),
-    Wall(start: topLeft, end: bottomLeft),
-  ];
-}
-
 /// {@template bottom_wall}
 /// [Wall] located at the bottom of the board.
 ///

lib/game/pinball_game.dart

@@ -46,7 +46,8 @@ class PinballGame extends Forge2DGame
     unawaited(add(CameraController(this)));
     unawaited(add(Backboard.waiting(position: Vector2(0, -88))));
 
-    await _addGameBoundaries();
+    // TODO(allisonryan0002): banish Wall and Board classes in later PR.
+    await add(BottomWall());
     unawaited(addFromBlueprint(Boundaries()));
     unawaited(addFromBlueprint(LaunchRamp()));
 
@@ -77,11 +78,6 @@ class PinballGame extends Forge2DGame
     addContactCallback(BottomWallBallContactCallback());
   }
 
-  Future<void> _addGameBoundaries() async {
-    await add(BottomWall());
-    createBoundaries(this).forEach(add);
-  }
-
   Future<void> _addBonusWord() async {
     await add(
       GoogleWord(

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

@@ -22,7 +22,6 @@ class Baseboard extends BodyComponent with InitialPosition {
   final BoardSide _side;
 
   List<FixtureDef> _createFixtureDefs() {
-    final fixturesDef = <FixtureDef>[];
     final direction = _side.direction;
     const arcsAngle = 1.11;
     final arcsRotation = (_side.isLeft) ? -2.7 : -1.6;
@@ -30,12 +29,10 @@ class Baseboard extends BodyComponent with InitialPosition {
     final pegBumperShape = CircleShape()..radius = 0.7;
     pegBumperShape.position.setValues(11.11 * direction, -7.15);
     final pegBumperFixtureDef = FixtureDef(pegBumperShape);
-    fixturesDef.add(pegBumperFixtureDef);
 
     final topCircleShape = CircleShape()..radius = 0.7;
     topCircleShape.position.setValues(9.71 * direction, -4.95);
     final topCircleFixtureDef = FixtureDef(topCircleShape);
-    fixturesDef.add(topCircleFixtureDef);
 
     final innerEdgeShape = EdgeShape()
       ..set(
@@ -43,7 +40,6 @@ class Baseboard extends BodyComponent with InitialPosition {
         Vector2(5.29 * direction, 0.95),
       );
     final innerEdgeShapeFixtureDef = FixtureDef(innerEdgeShape);
-    fixturesDef.add(innerEdgeShapeFixtureDef);
 
     final outerEdgeShape = EdgeShape()
       ..set(
@@ -51,7 +47,6 @@ class Baseboard extends BodyComponent with InitialPosition {
         Vector2(3.79 * direction, 5.95),
       );
     final outerEdgeShapeFixtureDef = FixtureDef(outerEdgeShape);
-    fixturesDef.add(outerEdgeShapeFixtureDef);
 
     final upperArcShape = ArcShape(
       center: Vector2(0.09 * direction, -2.15),
@@ -60,7 +55,6 @@ class Baseboard extends BodyComponent with InitialPosition {
       rotation: arcsRotation,
     );
     final upperArcFixtureDef = FixtureDef(upperArcShape);
-    fixturesDef.add(upperArcFixtureDef);
 
     final lowerArcShape = ArcShape(
       center: Vector2(0.09 * direction, 3.35),
@@ -69,7 +63,6 @@ class Baseboard extends BodyComponent with InitialPosition {
       rotation: arcsRotation,
     );
     final lowerArcFixtureDef = FixtureDef(lowerArcShape);
-    fixturesDef.add(lowerArcFixtureDef);
 
     final bottomRectangle = PolygonShape()
       ..setAsBox(
@@ -79,9 +72,16 @@ class Baseboard extends BodyComponent with InitialPosition {
         0,
       );
     final bottomRectangleFixtureDef = FixtureDef(bottomRectangle);
-    fixturesDef.add(bottomRectangleFixtureDef);
 
-    return fixturesDef;
+    return [
+      pegBumperFixtureDef,
+      topCircleFixtureDef,
+      innerEdgeShapeFixtureDef,
+      outerEdgeShapeFixtureDef,
+      upperArcFixtureDef,
+      lowerArcFixtureDef,
+      bottomRectangleFixtureDef,
+    ];
   }
 
   @override
@@ -100,21 +100,26 @@ class Baseboard extends BodyComponent with InitialPosition {
 }
 
 class _BaseboardSpriteComponent extends SpriteComponent with HasGameRef {
-  _BaseboardSpriteComponent({required BoardSide side}) : _side = side;
+  _BaseboardSpriteComponent({required BoardSide side})
+      : _side = side,
+        super(
+          anchor: Anchor.center,
+          position: Vector2(0.4 * -side.direction, 0),
+        );
 
   final BoardSide _side;
 
   @override
   Future<void> onLoad() async {
     await super.onLoad();
-    final sprite = await gameRef.loadSprite(
+    final sprite = Sprite(
-      (_side.isLeft)
+      gameRef.images.fromCache(
-          ? Assets.images.baseboard.left.keyName
+        (_side.isLeft)
-          : Assets.images.baseboard.right.keyName,
+            ? Assets.images.baseboard.left.keyName
+            : Assets.images.baseboard.right.keyName,
+      ),
     );
     this.sprite = sprite;
     size = sprite.originalSize / 10;
-    position = Vector2(0.4 * -_side.direction, 0);
-    anchor = Anchor.center;
   }
 }

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

@@ -32,8 +32,6 @@ class _BottomBoundary extends BodyComponent with InitialPosition {
   }
 
   List<FixtureDef> _createFixtureDefs() {
-    final fixturesDefs = <FixtureDef>[];
-
     final bottomLeftCurve = BezierCurveShape(
       controlPoints: [
         Vector2(-43.9, 41.8),
@@ -42,7 +40,6 @@ class _BottomBoundary extends BodyComponent with InitialPosition {
       ],
     );
     final bottomLeftCurveFixtureDef = FixtureDef(bottomLeftCurve);
-    fixturesDefs.add(bottomLeftCurveFixtureDef);
 
     final bottomRightCurve = BezierCurveShape(
       controlPoints: [
@@ -52,9 +49,8 @@ class _BottomBoundary extends BodyComponent with InitialPosition {
       ],
     );
     final bottomRightCurveFixtureDef = FixtureDef(bottomRightCurve);
-    fixturesDefs.add(bottomRightCurveFixtureDef);
 
-    return fixturesDefs;
+    return [bottomLeftCurveFixtureDef, bottomRightCurveFixtureDef];
   }
 
   @override
@@ -68,16 +64,22 @@ class _BottomBoundary extends BodyComponent with InitialPosition {
 }
 
 class _BottomBoundarySpriteComponent extends SpriteComponent with HasGameRef {
+  _BottomBoundarySpriteComponent()
+      : super(
+          anchor: Anchor.center,
+          position: Vector2(-5.4, 55.6),
+        );
+
   @override
   Future<void> onLoad() async {
     await super.onLoad();
-    final sprite = await gameRef.loadSprite(
+    final sprite = Sprite(
-      Assets.images.boundary.bottom.keyName,
+      gameRef.images.fromCache(
+        Assets.images.boundary.bottom.keyName,
+      ),
     );
     this.sprite = sprite;
     size = sprite.originalSize / 10;
-    anchor = Anchor.center;
-    position = Vector2(-5.4, 55.6);
   }
 }
 
@@ -96,15 +98,12 @@ class _OuterBoundary extends BodyComponent with InitialPosition {
   }
 
   List<FixtureDef> _createFixtureDefs() {
-    final fixturesDefs = <FixtureDef>[];
-
     final topWall = EdgeShape()
       ..set(
         Vector2(3.6, -70.2),
         Vector2(-14.1, -70.2),
       );
     final topWallFixtureDef = FixtureDef(topWall);
-    fixturesDefs.add(topWallFixtureDef);
 
     final topLeftCurve = BezierCurveShape(
       controlPoints: [
@@ -114,7 +113,6 @@ class _OuterBoundary extends BodyComponent with InitialPosition {
       ],
     );
     final topLeftCurveFixtureDef = FixtureDef(topLeftCurve);
-    fixturesDefs.add(topLeftCurveFixtureDef);
 
     final leftWall = EdgeShape()
       ..set(
@@ -122,9 +120,12 @@ class _OuterBoundary extends BodyComponent with InitialPosition {
         Vector2(-43.9, 41.8),
       );
     final leftWallFixtureDef = FixtureDef(leftWall);
-    fixturesDefs.add(leftWallFixtureDef);
 
-    return fixturesDefs;
+    return [
+      topWallFixtureDef,
+      topLeftCurveFixtureDef,
+      leftWallFixtureDef,
+    ];
   }
 
   @override
@@ -138,15 +139,21 @@ class _OuterBoundary extends BodyComponent with InitialPosition {
 }
 
 class _OuterBoundarySpriteComponent extends SpriteComponent with HasGameRef {
+  _OuterBoundarySpriteComponent()
+      : super(
+          anchor: Anchor.center,
+          position: Vector2(0, -7.8),
+        );
+
   @override
   Future<void> onLoad() async {
     await super.onLoad();
-    final sprite = await gameRef.loadSprite(
+    final sprite = Sprite(
-      Assets.images.boundary.outer.keyName,
+      gameRef.images.fromCache(
+        Assets.images.boundary.outer.keyName,
+      ),
     );
     this.sprite = sprite;
     size = sprite.originalSize / 10;
-    anchor = Anchor.center;
-    position = Vector2(-0.2, -1.4);
   }
 }

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

@@ -17,12 +17,12 @@ class DashAnimatronic extends SpriteAnimationComponent with HasGameRef {
   Future<void> onLoad() async {
     await super.onLoad();
 
-    final spriteSheet = await gameRef.images.load(
+    final spriteSheet = gameRef.images.fromCache(
       Assets.images.dash.animatronic.keyName,
     );
 
-    const amountPerRow = 12;
+    const amountPerRow = 13;
-    const amountPerColumn = 8;
+    const amountPerColumn = 6;
     final textureSize = Vector2(
       spriteSheet.width / amountPerRow,
       spriteSheet.height / amountPerColumn,

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

@@ -60,7 +60,6 @@ class Flipper extends BodyComponent with KeyboardHandler, InitialPosition {
   }
 
   List<FixtureDef> _createFixtureDefs() {
-    final fixturesDef = <FixtureDef>[];
     final direction = side.direction;
 
     final assetShadow = Flipper.size.x * 0.012 * -direction;
@@ -77,7 +76,6 @@ class Flipper extends BodyComponent with KeyboardHandler, InitialPosition {
       0,
     );
     final bigCircleFixtureDef = FixtureDef(bigCircleShape);
-    fixturesDef.add(bigCircleFixtureDef);
 
     final smallCircleShape = CircleShape()..radius = size.y * 0.23;
     smallCircleShape.position.setValues(
@@ -87,7 +85,6 @@ class Flipper extends BodyComponent with KeyboardHandler, InitialPosition {
       0,
     );
     final smallCircleFixtureDef = FixtureDef(smallCircleShape);
-    fixturesDef.add(smallCircleFixtureDef);
 
     final trapeziumVertices = side.isLeft
         ? [
@@ -108,9 +105,12 @@ class Flipper extends BodyComponent with KeyboardHandler, InitialPosition {
       density: 50, // TODO(alestiago): Use a proper density.
       friction: .1, // TODO(alestiago): Use a proper friction.
     );
-    fixturesDef.add(trapeziumFixtureDef);
 
-    return fixturesDef;
+    return [
+      bigCircleFixtureDef,
+      smallCircleFixtureDef,
+      trapeziumFixtureDef,
+    ];
   }
 
   @override
@@ -136,21 +136,24 @@ class Flipper extends BodyComponent with KeyboardHandler, InitialPosition {
 }
 
 class _FlipperSpriteComponent extends SpriteComponent with HasGameRef {
-  _FlipperSpriteComponent({required BoardSide side}) : _side = side;
+  _FlipperSpriteComponent({required BoardSide side})
+      : _side = side,
+        super(anchor: Anchor.center);
 
   final BoardSide _side;
 
   @override
   Future<void> onLoad() async {
     await super.onLoad();
-    final sprite = await gameRef.loadSprite(
+    final sprite = Sprite(
-      (_side.isLeft)
+      gameRef.images.fromCache(
-          ? Assets.images.flipper.left.keyName
+        (_side.isLeft)
-          : Assets.images.flipper.right.keyName,
+            ? Assets.images.flipper.left.keyName
+            : Assets.images.flipper.right.keyName,
+      ),
     );
     this.sprite = sprite;
     size = sprite.originalSize / 10;
-    anchor = Anchor.center;
   }
 }
 

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

@@ -49,7 +49,7 @@ abstract class RenderPriority {
 
   static const int launchRamp = _above + outerBoudary;
 
-  static const int launchRampForegroundRailing = _above + ballOnLaunchRamp;
+  static const int launchRampForegroundRailing = _below + ballOnBoard;
 
   static const int plunger = _above + launchRamp;
 
@@ -63,7 +63,7 @@ abstract class RenderPriority {
 
   static const int dinoBottomWall = _above + dino;
 
-  static const int slingshot = _above + ballOnBoard;
+  static const int slingshot = _above + dinoBottomWall;
 
   // Flutter Forest
 
@@ -71,7 +71,7 @@ abstract class RenderPriority {
 
   static const int dashBumper = _above + ballOnBoard;
 
-  static const int dashAnimatronic = _above + launchRampForegroundRailing;
+  static const int dashAnimatronic = 2 * _above + launchRamp;
 
   // Sparky Fire Zone
 

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

@@ -49,18 +49,15 @@ class Slingshot extends BodyComponent with InitialPosition {
   final double _angle;
 
   List<FixtureDef> _createFixtureDefs() {
-    final fixturesDef = <FixtureDef>[];
     const circleRadius = 1.55;
 
     final topCircleShape = CircleShape()..radius = circleRadius;
     topCircleShape.position.setValues(0, -_length / 2);
     final topCircleFixtureDef = FixtureDef(topCircleShape);
-    fixturesDef.add(topCircleFixtureDef);
 
     final bottomCircleShape = CircleShape()..radius = circleRadius;
     bottomCircleShape.position.setValues(0, _length / 2);
     final bottomCircleFixtureDef = FixtureDef(bottomCircleShape);
-    fixturesDef.add(bottomCircleFixtureDef);
 
     final leftEdgeShape = EdgeShape()
       ..set(
@@ -72,8 +69,6 @@ class Slingshot extends BodyComponent with InitialPosition {
       restitution: 5,
     );
 
-    fixturesDef.add(leftEdgeShapeFixtureDef);
-
     final rightEdgeShape = EdgeShape()
       ..set(
         Vector2(-circleRadius, _length / 2),
@@ -83,9 +78,13 @@ class Slingshot extends BodyComponent with InitialPosition {
       rightEdgeShape,
       restitution: 5,
     );
-    fixturesDef.add(rightEdgeShapeFixtureDef);
 
-    return fixturesDef;
+    return [
+      topCircleFixtureDef,
+      bottomCircleFixtureDef,
+      leftEdgeShapeFixtureDef,
+      rightEdgeShapeFixtureDef,
+    ];
   }
 
   @override
@@ -118,7 +117,7 @@ class _SlinghsotSpriteComponent extends SpriteComponent with HasGameRef {
   @override
   Future<void> onLoad() async {
     await super.onLoad();
-    final sprite = await gameRef.loadSprite(_path);
+    final sprite = Sprite(gameRef.images.fromCache(_path));
     this.sprite = sprite;
     size = sprite.originalSize / 10;
   }

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

@@ -0,0 +1,38 @@
+import 'package:flame_forge2d/flame_forge2d.dart';
+import 'package:pinball_components/pinball_components.dart';
+import 'package:sandbox/common/common.dart';
+import 'package:sandbox/stories/ball/basic_ball_game.dart';
+
+class BaseboardGame extends BasicBallGame with Traceable {
+  static const info = '''
+    Shows how the Baseboards are rendered.
+
+    - Activate the "trace" parameter to overlay the body.
+    - Tap anywhere on the screen to spawn a ball into the game.
+''';
+
+  @override
+  Future<void> onLoad() async {
+    await super.onLoad();
+
+    await images.loadAll([
+      Assets.images.baseboard.left.keyName,
+      Assets.images.baseboard.right.keyName,
+    ]);
+
+    final center = screenToWorld(camera.viewport.canvasSize! / 2);
+    final leftBaseboard = Baseboard(side: BoardSide.left)
+      ..initialPosition = center - Vector2(25, 0)
+      ..priority = 1;
+    final rightBaseboard = Baseboard(side: BoardSide.right)
+      ..initialPosition = center + Vector2(25, 0)
+      ..priority = 1;
+
+    await addAll([
+      leftBaseboard,
+      rightBaseboard,
+    ]);
+
+    await traceAllBodies();
+  }
+}

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

@@ -1,24 +0,0 @@
-import 'package:flame_forge2d/flame_forge2d.dart';
-import 'package:pinball_components/pinball_components.dart';
-import 'package:sandbox/common/common.dart';
-
-class BasicBaseboardGame extends BasicGame {
-  static const info = 'Shows how a Baseboard works.';
-
-  @override
-  Future<void> onLoad() async {
-    await super.onLoad();
-
-    final center = screenToWorld(camera.viewport.canvasSize! / 2);
-
-    final leftBaseboard = Baseboard(side: BoardSide.left)
-      ..initialPosition = center - Vector2(25, 0);
-    final rightBaseboard = Baseboard(side: BoardSide.right)
-      ..initialPosition = center + Vector2(25, 0);
-
-    await addAll([
-      leftBaseboard,
-      rightBaseboard,
-    ]);
-  }
-}

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

@@ -1,15 +1,15 @@
 import 'package:dashbook/dashbook.dart';
 import 'package:flame/game.dart';
 import 'package:sandbox/common/common.dart';
-import 'package:sandbox/stories/baseboard/basic_baseboard_game.dart';
+import 'package:sandbox/stories/baseboard/baseboard_game.dart';
 
 void addBaseboardStories(Dashbook dashbook) {
   dashbook.storiesOf('Baseboard').add(
         'Basic',
         (context) => GameWidget(
-          game: BasicBaseboardGame(),
+          game: BaseboardGame()..trace = context.boolProperty('Trace', true),
         ),
-        codeLink: buildSourceLink('baseboard/basic.dart'),
+        codeLink: buildSourceLink('baseboard_game/basic.dart'),
-        info: BasicBaseboardGame.info,
+        info: BaseboardGame.info,
       );
 }

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

@@ -16,6 +16,11 @@ class BoundariesGame extends BasicBallGame with Traceable {
   Future<void> onLoad() async {
     await super.onLoad();
 
+    await images.loadAll([
+      Assets.images.boundary.outer.keyName,
+      Assets.images.boundary.bottom.keyName,
+    ]);
+
     await addFromBlueprint(Boundaries());
     await ready();
 

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

@@ -33,6 +33,11 @@ class FlipperGame extends BasicBallGame with KeyboardEvents, Traceable {
   Future<void> onLoad() async {
     await super.onLoad();
 
+    await images.loadAll([
+      Assets.images.flipper.left.keyName,
+      Assets.images.flipper.right.keyName,
+    ]);
+
     final center = screenToWorld(camera.viewport.canvasSize! / 2);
 
     leftFlipper = Flipper(side: BoardSide.left)

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

@@ -15,6 +15,12 @@ class SlingshotGame extends BasicBallGame with Traceable {
   @override
   Future<void> onLoad() async {
     await super.onLoad();
+
+    await images.loadAll([
+      Assets.images.slingshot.upper.keyName,
+      Assets.images.slingshot.lower.keyName,
+    ]);
+
     await addFromBlueprint(Slingshots());
     camera.followVector2(Vector2.zero());
     await traceAllBodies();

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

@@ -10,11 +10,16 @@ import '../../helpers/helpers.dart';
 void main() {
   group('Baseboard', () {
     TestWidgetsFlutterBinding.ensureInitialized();
-    final flameTester = FlameTester(TestGame.new);
+    final assets = [
+      Assets.images.baseboard.left.keyName,
+      Assets.images.baseboard.right.keyName,
+    ];
+    final flameTester = FlameTester(() => TestGame(assets));
 
     flameTester.testGameWidget(
       'renders correctly',
       setUp: (game, tester) async {
+        await game.images.loadAll(assets);
         final leftBaseboard = Baseboard(
           side: BoardSide.left,
         )..initialPosition = Vector2(-20, 0);
@@ -24,6 +29,7 @@ void main() {
 
         await game.ensureAddAll([leftBaseboard, rightBaseboard]);
         game.camera.followVector2(Vector2.zero());
+        await tester.pump();
       },
       verify: (game, tester) async {
         await expectLater(

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

@@ -10,15 +10,20 @@ import '../../helpers/helpers.dart';
 
 void main() {
   group('Boundaries', () {
+    final assets = [
+      Assets.images.boundary.outer.keyName,
+      Assets.images.boundary.bottom.keyName,
+    ];
     final tester = FlameTester(TestGame.new);
 
     tester.testGameWidget(
       'render correctly',
       setUp: (game, tester) async {
+        await game.images.loadAll(assets);
         await game.addFromBlueprint(Boundaries());
         game.camera.followVector2(Vector2.zero());
-        game.camera.zoom = 3.9;
+        game.camera.zoom = 3.2;
-        await game.ready();
+        await tester.pump();
       },
       verify: (game, tester) async {
         await expectLater(

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

@@ -9,29 +9,33 @@ import '../../helpers/helpers.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
-  final flameTester = FlameTester(TestGame.new);
+  final asset = Assets.images.dash.animatronic.keyName;
+  final flameTester = FlameTester(() => TestGame([asset]));
 
   group('DashAnimatronic', () {
     flameTester.testGameWidget(
       'renders correctly',
       setUp: (game, tester) async {
+        await game.images.load(asset);
         await game.ensureAdd(DashAnimatronic()..playing = true);
         game.camera.followVector2(Vector2.zero());
+        await tester.pump();
       },
       verify: (game, tester) async {
+        const animationDuration = 3.25;
         await expectLater(
           find.byGame<TestGame>(),
           matchesGoldenFile('golden/dash_animatronic/start.png'),
         );
 
-        game.update(1);
+        game.update(animationDuration * 0.25);
         await tester.pump();
         await expectLater(
           find.byGame<TestGame>(),
           matchesGoldenFile('golden/dash_animatronic/middle.png'),
         );
 
-        game.update(3);
+        game.update(animationDuration * 0.75);
         await tester.pump();
         await expectLater(
           find.byGame<TestGame>(),

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

@@ -10,7 +10,11 @@ import '../../helpers/helpers.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
-  final flameTester = FlameTester(TestGame.new);
+  final assets = [
+    Assets.images.flipper.left.keyName,
+    Assets.images.flipper.right.keyName,
+  ];
+  final flameTester = FlameTester(() => TestGame(assets));
 
   group('Flipper', () {
     // TODO(alestiago): Consider testing always both left and right Flipper.
@@ -18,6 +22,7 @@ void main() {
     flameTester.testGameWidget(
       'renders correctly',
       setUp: (game, tester) async {
+        await game.images.loadAll(assets);
         final leftFlipper = Flipper(
           side: BoardSide.left,
         )..initialPosition = Vector2(-10, 0);
@@ -27,6 +32,7 @@ void main() {
 
         await game.ensureAddAll([leftFlipper, rightFlipper]);
         game.camera.followVector2(Vector2.zero());
+        await tester.pump();
       },
       verify: (game, tester) async {
         await expectLater(

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

@@ -10,17 +10,22 @@ import '../../helpers/helpers.dart';
 
 void main() {
   group('Slingshot', () {
-    final flameTester = FlameTester(TestGame.new);
+    final assets = [
+      Assets.images.slingshot.upper.keyName,
+      Assets.images.slingshot.lower.keyName,
+    ];
+    final flameTester = FlameTester(() => TestGame(assets));
     const length = 2.0;
     const angle = 0.0;
-    final spritePath = Assets.images.slingshot.upper.keyName;
 
     flameTester.testGameWidget(
       'renders correctly',
       setUp: (game, tester) async {
+        await game.images.loadAll(assets);
         await game.addFromBlueprint(Slingshots());
         game.camera.followVector2(Vector2.zero());
         await game.ready();
+        await tester.pump();
       },
       verify: (game, tester) async {
         await expectLater(
@@ -36,7 +41,7 @@ void main() {
         final slingshot = Slingshot(
           length: length,
           angle: angle,
-          spritePath: spritePath,
+          spritePath: assets.first,
         );
         await game.ensureAdd(slingshot);
 
@@ -50,7 +55,7 @@ void main() {
         final slingshot = Slingshot(
           length: length,
           angle: angle,
-          spritePath: spritePath,
+          spritePath: assets.first,
         );
         await game.ensureAdd(slingshot);
 
@@ -64,7 +69,7 @@ void main() {
         final slingshot = Slingshot(
           length: length,
           angle: angle,
-          spritePath: spritePath,
+          spritePath: assets.first,
         );
         await game.ensureAdd(slingshot);
 
@@ -82,7 +87,7 @@ void main() {
         final slingshot = Slingshot(
           length: length,
           angle: angle,
-          spritePath: spritePath,
+          spritePath: assets.first,
         );
         await game.ensureAdd(slingshot);
 

packages/pinball_flame/lib/src/blueprint.dart

@@ -18,6 +18,7 @@ class Blueprint extends Component {
   }) {
     if (components != null) _components.addAll(components);
     if (blueprints != null) {
+      _blueprints.addAll(blueprints);
       for (final blueprint in blueprints) {
         _components.addAll(blueprint.components);
       }
@@ -26,12 +27,17 @@ class Blueprint extends Component {
 
   final List<Component> _components = [];
 
+  final List<Component> _blueprints = [];
+
   Future<void> _addToParent(Component parent) async {
     await parent.addAll(_components);
   }
 
   /// Returns a copy of the components built by this blueprint.
   List<Component> get components => List.unmodifiable(_components);
+
+  /// Returns a copy of the blueprints built by this blueprint.
+  List<Component> get blueprints => List.unmodifiable(_blueprints);
 }
 
 /// Adds helper methods regarding [Blueprint]s to [FlameGame].

packages/pinball_flame/test/src/blueprint_test.dart

@@ -27,6 +27,18 @@ void main() {
       expect(blueprint.components, contains(component2));
     });
 
+    test('correctly sets and gets blueprints', () {
+      final blueprint2 = Blueprint(
+        components: [Component()],
+      );
+      final blueprint1 = Blueprint(
+        components: [Component()],
+        blueprints: [blueprint2],
+      );
+
+      expect(blueprint1.blueprints, contains(blueprint2));
+    });
+
     flameTester.test('adds the components to parent on attach', (game) async {
       final blueprint = Blueprint(
         components: [

test/game/components/board_test.dart

@@ -16,10 +16,15 @@ void main() {
     Assets.images.dash.bumper.a.inactive.keyName,
     Assets.images.dash.bumper.b.active.keyName,
     Assets.images.dash.bumper.b.inactive.keyName,
+    Assets.images.dash.animatronic.keyName,
     Assets.images.signpost.inactive.keyName,
     Assets.images.signpost.active1.keyName,
     Assets.images.signpost.active2.keyName,
     Assets.images.signpost.active3.keyName,
+    Assets.images.baseboard.left.keyName,
+    Assets.images.baseboard.right.keyName,
+    Assets.images.flipper.left.keyName,
+    Assets.images.flipper.right.keyName,
   ];
   final flameTester = FlameTester(() => EmptyPinballTestGame(assets));
 

test/game/components/controlled_flipper_test.dart

@@ -11,7 +11,11 @@ import '../../helpers/helpers.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
-  final flameTester = FlameTester(EmptyPinballTestGame.new);
+  final assets = [
+    Assets.images.flipper.left.keyName,
+    Assets.images.flipper.right.keyName,
+  ];
+  final flameTester = FlameTester(() => EmptyPinballTestGame(assets));
 
   final flameBlocTester = FlameBlocTester<EmptyPinballTestGame, GameBloc>(
     gameBuilder: EmptyPinballTestGame.new,
@@ -25,6 +29,7 @@ void main() {
       whenListen(bloc, Stream.value(state), initialState: state);
       return bloc;
     },
+    assets: assets,
   );
 
   group('FlipperController', () {

test/game/components/flutter_forest_test.dart

@@ -19,6 +19,7 @@ void main() {
     Assets.images.dash.bumper.a.inactive.keyName,
     Assets.images.dash.bumper.b.active.keyName,
     Assets.images.dash.bumper.b.inactive.keyName,
+    Assets.images.dash.animatronic.keyName,
     Assets.images.signpost.inactive.keyName,
     Assets.images.signpost.active1.keyName,
     Assets.images.signpost.active2.keyName,

test/game/pinball_game_test.dart

@@ -19,6 +19,7 @@ void main() {
     Assets.images.dash.bumper.a.inactive.keyName,
     Assets.images.dash.bumper.b.active.keyName,
     Assets.images.dash.bumper.b.inactive.keyName,
+    Assets.images.dash.animatronic.keyName,
     Assets.images.signpost.inactive.keyName,
     Assets.images.signpost.active1.keyName,
     Assets.images.signpost.active2.keyName,
@@ -44,6 +45,14 @@ void main() {
     Assets.images.spaceship.ramp.arrow.active3.keyName,
     Assets.images.spaceship.ramp.arrow.active4.keyName,
     Assets.images.spaceship.ramp.arrow.active5.keyName,
+    Assets.images.baseboard.left.keyName,
+    Assets.images.baseboard.right.keyName,
+    Assets.images.flipper.left.keyName,
+    Assets.images.flipper.right.keyName,
+    Assets.images.boundary.outer.keyName,
+    Assets.images.boundary.bottom.keyName,
+    Assets.images.slingshot.upper.keyName,
+    Assets.images.slingshot.lower.keyName,
   ];
   final flameTester = FlameTester(() => PinballTestGame(assets));
   final debugModeFlameTester = FlameTester(() => DebugPinballTestGame(assets));
@@ -53,17 +62,6 @@ void main() {
     // [BallScorePointsCallback] once the following issue is resolved:
     // https://github.com/flame-engine/flame/issues/1416
     group('components', () {
-      flameTester.test(
-        'has three Walls',
-        (game) async {
-          await game.ready();
-          final walls = game.children.where(
-            (component) => component is Wall && component is! BottomWall,
-          );
-          expect(walls.length, 3);
-        },
-      );
-
       flameTester.test(
         'has only one BottomWall',
         (game) async {