feat: shaking trash effect

packages/trashy_road/lib/src/game/entities/player/behaviors/player_collecting_trash_behavior.dart

@@ -1,3 +1,4 @@
+import 'package:flame/components.dart';
 import 'package:flame/game.dart';
 import 'package:flame_behaviors/flame_behaviors.dart';
 import 'package:flame_bloc/flame_bloc.dart';
@@ -18,6 +19,7 @@ class PlayerCollectingTrashBehavior extends CollisionBehavior<Trash, Player>
     }
 
     bloc.add(GameCollectedTrashEvent(item: other.trashType));
-    other.removeFromParent();
+
+    other.collect();
   }
 }

packages/trashy_road/lib/src/game/entities/trash/behaviors/behaviors.dart

@@ -0,0 +1 @@
+export 'trash_shaking_behavior.dart';

packages/trashy_road/lib/src/game/entities/trash/behaviors/trash_shaking_behavior.dart

@@ -0,0 +1,44 @@
+import 'dart:async';
+import 'dart:math';
+
+import 'package:flame/components.dart';
+import 'package:flame/effects.dart';
+import 'package:flame_behaviors/flame_behaviors.dart';
+import 'package:flame_noise/flame_noise.dart';
+import 'package:trashy_road/src/game/game.dart';
+
+final _random = Random(0);
+
+/// Shakes the [Trash] around every now and then.
+///
+/// This is to catch the player's attention so they know that the [Trash] is
+/// interactable and needs to be collected.
+class TrashShakingBehavior extends Behavior<Trash> {
+  final _shakeDistance = Vector2(10, 4);
+
+  @override
+  FutureOr<void> onLoad() async {
+    await super.onLoad();
+
+    add(
+      TimerComponent(
+        repeat: true,
+        period: 2 + _random.nextDouble() * 2,
+        onTick: () {
+          parent.add(
+            MoveEffect.by(
+              _shakeDistance,
+              NoiseEffectController(
+                noise: WhiteNoise(
+                  seed: _random.nextInt(100),
+                  frequency: 5,
+                ),
+                duration: 0.5,
+              ),
+            ),
+          );
+        },
+      ),
+    );
+  }
+}

packages/trashy_road/lib/src/game/entities/trash/trash.dart

@@ -10,6 +10,8 @@ import 'package:trashy_road/gen/assets.gen.dart';
 import 'package:trashy_road/src/audio/audio.dart';
 import 'package:trashy_road/src/game/game.dart';
 
+export 'behaviors/behaviors.dart';
+
 /// The different types of [Trash].
 enum TrashType {
   plastic._('plastic'),
@@ -49,6 +51,7 @@ class Trash extends PositionedEntity
               drop: Vector2(0, -45),
               minDuration: 0.1,
             ),
+            TrashShakingBehavior(),
             PropagatingCollisionBehavior(
               RectangleHitbox(
                 isSolid: true,
@@ -114,16 +117,15 @@ class Trash extends PositionedEntity
     }
   }
 
-  @override
-  void removeFromParent() {
+  /// Collects the trash.
+  void collect() {
     game.audioBloc.playEffect(GameSoundEffects.plasticTrash);
-
     findBehavior<PropagatingCollisionBehavior>()
         .children
         .whereType<RectangleHitbox>()
         .first
         .collisionType = CollisionType.inactive;
-    super.removeFromParent();
+    removeFromParent();
   }
 
   final TrashType trashType;

packages/trashy_road/pubspec.lock

@@ -320,6 +320,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
+  fast_noise:
+    dependency: transitive
+    description:
+      name: fast_noise
+      sha256: "2aa7bbde5599d2b6769750ee23536ec8a0096606fc9d10d29a3855e80715e1c6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
   ffi:
     dependency: transitive
     description:
@@ -376,6 +384,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.11.0"
+  flame_noise:
+    dependency: "direct main"
+    description:
+      name: flame_noise
+      sha256: e75afe58380156298deeca0f2b40b9e077fd4dea7b84a9b5c6e4536bf94a35e8
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.0"
   flame_test:
     dependency: "direct dev"
     description:

packages/trashy_road/pubspec.yaml

@@ -21,6 +21,7 @@ dependencies:
   flame_audio: ^2.10.0
   flame_behaviors: ^1.1.0
   flame_bloc: ^1.11.0
+  flame_noise: ^0.3.0
   flame_tiled: ^1.19.0
   flutter:
     sdk: flutter