feat: adjusted camera

packages/trashy_road/lib/src/game/entities/vehicle/behaviors/camera_follow_behavior.dart

@@ -0,0 +1,66 @@
+import 'package:flame/camera.dart';
+import 'package:flame/components.dart';
+import 'package:flame/effects.dart';
+import 'package:trashy_road/game_settings.dart';
+
+/// {@template CameraFollowBehavior}
+/// An adaptation of [FollowBehavior] that makes some vertical adjustments so
+/// that the [target] is not directly at the center of the screen.
+/// {@endtemplate}
+class CameraFollowBehavior extends Component with HasGameReference {
+  /// {@macro CameraFollowBehavior}
+  CameraFollowBehavior({
+    required ReadOnlyPositionProvider target,
+    required this.viewport,
+    PositionProvider? owner,
+    double maxSpeed = double.infinity,
+    super.priority,
+  })  : _target = target,
+        _owner = owner,
+        _speed = maxSpeed,
+        assert(maxSpeed > 0, 'maxSpeed must be positive: $maxSpeed');
+
+  ReadOnlyPositionProvider get target => _target;
+  final ReadOnlyPositionProvider _target;
+
+  PositionProvider get owner => _owner!;
+  PositionProvider? _owner;
+
+  double get maxSpeed => _speed;
+  final double _speed;
+
+  final Viewport viewport;
+
+  @override
+  void onMount() {
+    if (_owner == null) {
+      assert(
+        parent is PositionProvider,
+        'Can only apply this behavior to a PositionProvider',
+      );
+      _owner = parent! as PositionProvider;
+    }
+  }
+
+  final _deltaCache = Vector2.zero();
+
+  /// The amount of distance that there should be between the target and the
+  /// bottom of the screen.
+  static final _verticalAdjustment = GameSettings.gridDimensions.y * 4;
+
+  @override
+  void update(double dt) {
+    final delta = _deltaCache
+      ..setFrom(target.position)
+      ..sub(owner.position)
+      ..y -= _verticalAdjustment;
+
+    final distance = delta.length;
+    if (distance > _speed * dt) {
+      delta.scale(_speed * dt / distance);
+    }
+    if (delta.x != 0 || delta.y != 0) {
+      owner.position = delta..add(owner.position);
+    }
+  }
+}

packages/trashy_road/lib/src/game/entities/vehicle/behaviors/translated_follow_behavior.dart

@@ -0,0 +1 @@
+

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

@@ -6,11 +6,13 @@ import 'package:flame/cache.dart';
 import 'package:flame/camera.dart';
 import 'package:flame/components.dart';
 import 'package:flame/events.dart';
+import 'package:flame/experimental.dart';
 import 'package:flame/game.dart';
 import 'package:flame_bloc/flame_bloc.dart';
 import 'package:flame_tiled/flame_tiled.dart';
 import 'package:flutter/material.dart';
 import 'package:trashy_road/game_settings.dart';
+import 'package:trashy_road/src/game/entities/vehicle/behaviors/camera_follow_behavior.dart';
 import 'package:trashy_road/src/game/game.dart';
 
 export 'bloc/bloc.dart';
@@ -89,7 +91,16 @@ class TrashyRoadGame extends FlameGame
     _player = trashyRoadWorld.tiled.children.whereType<Player>().first;
     _player.children.register<PlayerDragMovingBehavior>();
 
-    camera.follow(_player);
+    camera.viewfinder.add(
+      CameraFollowBehavior(target: _player, viewport: camera.viewport),
+    );
+
+    camera.setBounds(
+      Rectangle.fromPoints(
+        trashyRoadWorld.bounds.topLeft,
+        trashyRoadWorld.bounds.bottomRight,
+      ),
+    );
   }
 
   @override