fix: Add key parameters to the rest of the components

packages/flame/lib/src/camera/behaviors/bounded_position_behavior.dart

@@ -23,6 +23,7 @@ class BoundedPositionBehavior extends Component {
     PositionProvider? target,
     double precision = 0.5,
     super.priority,
+    super.key,
   })  : assert(precision > 0, 'Precision must be positive: $precision'),
         _bounds = bounds,
         _target = target,

packages/flame/lib/src/camera/behaviors/follow_behavior.dart

@@ -24,6 +24,7 @@ class FollowBehavior extends Component {
     this.horizontalOnly = false,
     this.verticalOnly = false,
     super.priority,
+    super.key,
   })  : _target = target,
         _owner = owner,
         _speed = maxSpeed,

packages/flame/lib/src/camera/behaviors/viewport_aware_bounds_behavior.dart

@@ -22,6 +22,7 @@ class ViewportAwareBoundsBehavior extends Component with ParentIsA<Viewfinder> {
 
   ViewportAwareBoundsBehavior({
     required Shape boundsShape,
+    super.key,
   }) : _boundsShape = boundsShape;
 
   @override

packages/flame/lib/src/camera/camera_component.dart

@@ -47,6 +47,7 @@ class CameraComponent extends Component {
     Viewfinder? viewfinder,
     Component? backdrop,
     List<Component>? hudComponents,
+    super.key,
   })  : _viewport = (viewport ?? MaxViewport())..addAll(hudComponents ?? []),
         _viewfinder = viewfinder ?? Viewfinder(),
         _backdrop = backdrop ?? Component(),
@@ -74,12 +75,14 @@ class CameraComponent extends Component {
     Viewfinder? viewfinder,
     Component? backdrop,
     List<Component>? hudComponents,
+    ComponentKey? key,
   }) : this(
           world: world,
           viewport: FixedResolutionViewport(resolution: Vector2(width, height)),
           viewfinder: viewfinder ?? Viewfinder(),
           backdrop: backdrop,
           hudComponents: hudComponents,
+          key: key,
         );
 
   /// The [viewport] is the "window" through which the game world is observed.

packages/flame/lib/src/camera/viewfinder.dart

@@ -22,6 +22,10 @@ class Viewfinder extends Component
         PositionProvider,
         ScaleProvider,
         CoordinateTransform {
+  Viewfinder({
+    super.key,
+  });
+
   /// Transform matrix used by the viewfinder.
   final Transform2D transform = Transform2D();
 

packages/flame/lib/src/camera/viewport.dart

@@ -24,7 +24,10 @@ abstract class Viewport extends Component
         PositionProvider,
         SizeProvider,
         CoordinateTransform {
-  Viewport({super.children});
+  Viewport({
+    super.children,
+    super.key,
+  });
 
   final Vector2 _size = Vector2.zero();
   bool _isInitialized = false;

packages/flame/lib/src/camera/world.dart

@@ -19,6 +19,7 @@ class World extends Component implements CoordinateTransform {
   World({
     super.children,
     super.priority = -0x7fffffff,
+    super.key,
   });
 
   @override

packages/flame/lib/src/components/core/component_tree_root.dart

@@ -9,8 +9,10 @@ import 'package:meta/meta.dart';
 /// functionality, namely: it contains global lifecycle events for the component
 /// tree.
 class ComponentTreeRoot extends Component {
-  ComponentTreeRoot({super.children})
-      : _queue = RecycledQueue(_LifecycleEvent.new),
+  ComponentTreeRoot({
+    super.children,
+    super.key,
+  })  : _queue = RecycledQueue(_LifecycleEvent.new),
         _blocked = <int>{},
         _componentsToRebalance = <Component>{};
 

packages/flame/lib/src/components/input/keyboard_listener_component.dart

@@ -16,6 +16,7 @@ class KeyboardListenerComponent extends Component with KeyboardHandler {
   KeyboardListenerComponent({
     Map<LogicalKeyboardKey, KeyHandlerCallback> keyUp = const {},
     Map<LogicalKeyboardKey, KeyHandlerCallback> keyDown = const {},
+    super.key,
   })  : _keyUp = keyUp,
         _keyDown = keyDown;
 

packages/flame/lib/src/effects/anchor_by_effect.dart

@@ -24,6 +24,7 @@ class AnchorByEffect extends AnchorEffect {
     EffectController controller, {
     AnchorProvider? target,
     void Function()? onComplete,
+    super.key,
   })  : _offset = offset.clone(),
         super(controller, target, onComplete: onComplete);
 

packages/flame/lib/src/effects/anchor_effect.dart

@@ -1,12 +1,11 @@
-import 'package:flame/src/anchor.dart';
+import 'package:flame/components.dart';
 import 'package:flame/src/effects/anchor_by_effect.dart';
 import 'package:flame/src/effects/anchor_to_effect.dart';
 import 'package:flame/src/effects/controllers/effect_controller.dart';
 import 'package:flame/src/effects/effect.dart';
 import 'package:flame/src/effects/effect_target.dart';
 import 'package:flame/src/effects/measurable_effect.dart';
 import 'package:flame/src/effects/provider_interfaces.dart';
-import 'package:vector_math/vector_math_64.dart';
 
 /// Base class for effects that affect the `anchor` of their targets.
 ///
@@ -22,6 +21,7 @@ abstract class AnchorEffect extends Effect
     super.controller,
     AnchorProvider? target, {
     super.onComplete,
+    super.key,
   }) {
     this.target = target;
   }
@@ -31,24 +31,28 @@ abstract class AnchorEffect extends Effect
     EffectController controller, {
     AnchorProvider? target,
     void Function()? onComplete,
+    ComponentKey? key,
   }) =>
       AnchorByEffect(
         offset,
         controller,
         target: target,
         onComplete: onComplete,
+        key: key,
       );
 
   factory AnchorEffect.to(
     Anchor destination,
     EffectController controller, {
     AnchorProvider? target,
     void Function()? onComplete,
+    ComponentKey? key,
   }) =>
       AnchorToEffect(
         destination,
         controller,
         target: target,
         onComplete: onComplete,
+        key: key,
       );
 }

packages/flame/lib/src/effects/anchor_to_effect.dart

@@ -15,6 +15,7 @@ class AnchorToEffect extends AnchorEffect {
     EffectController controller, {
     AnchorProvider? target,
     void Function()? onComplete,
+    super.key,
   })  : _destination = destination,
         super(controller, target, onComplete: onComplete);
 

packages/flame/lib/src/effects/color_effect.dart

@@ -23,6 +23,7 @@ class ColorEffect extends ComponentEffect<HasPaint> {
     double opacityTo = 1,
     this.paintId,
     void Function()? onComplete,
+    super.key,
   })  : assert(
           opacityFrom >= 0 &&
               opacityFrom <= 1 &&

packages/flame/lib/src/effects/component_effect.dart

@@ -9,6 +9,7 @@ abstract class ComponentEffect<T extends Component> extends Effect {
   ComponentEffect(
     super.controller, {
     super.onComplete,
+    super.key,
   });
 
   late T target;

packages/flame/lib/src/effects/effect.dart

@@ -27,8 +27,11 @@ import 'package:meta/meta.dart';
 /// changes in the effect's target; and also the `reset()` method if they have
 /// non-trivial internal state.
 abstract class Effect extends Component {
-  Effect(this.controller, {this.onComplete})
-      : removeOnFinish = true,
+  Effect(
+    this.controller, {
+    this.onComplete,
+    super.key,
+  })  : removeOnFinish = true,
         _paused = false,
         _started = false,
         _finished = false {
@@ -210,5 +213,5 @@ abstract class Effect extends Component {
   /// This is a main method that MUST be implemented in every derived class.
   void apply(double progress);
 
-  //#endregion
+//#endregion
 }

packages/flame/lib/src/effects/glow_effect.dart

@@ -11,7 +11,12 @@ import 'package:meta/meta.dart';
 /// same component also used incremental updates.
 @experimental
 class GlowEffect extends Effect with EffectTarget<PaintProvider> {
-  GlowEffect(this.strength, super.controller, {this.style = BlurStyle.outer});
+  GlowEffect(
+    this.strength,
+    super.controller, {
+    this.style = BlurStyle.outer,
+    super.key,
+  });
 
   final BlurStyle style;
   final double strength;

packages/flame/lib/src/effects/move_along_path_effect.dart

@@ -31,6 +31,7 @@ class MoveAlongPathEffect extends MoveEffect {
     bool oriented = false,
     PositionProvider? target,
     void Function()? onComplete,
+    super.key,
   })  : _isAbsolute = absolute,
         _followDirection = oriented,
         super(

packages/flame/lib/src/effects/move_by_effect.dart

@@ -23,6 +23,7 @@ class MoveByEffect extends MoveEffect {
     EffectController controller, {
     PositionProvider? target,
     void Function()? onComplete,
+    super.key,
   })  : _offset = offset.clone(),
         super(controller, target, onComplete: onComplete);
 

packages/flame/lib/src/effects/move_effect.dart

@@ -1,11 +1,11 @@
+import 'package:flame/components.dart';
 import 'package:flame/src/effects/controllers/effect_controller.dart';
 import 'package:flame/src/effects/effect.dart';
 import 'package:flame/src/effects/effect_target.dart';
 import 'package:flame/src/effects/measurable_effect.dart';
 import 'package:flame/src/effects/move_by_effect.dart';
 import 'package:flame/src/effects/move_to_effect.dart';
 import 'package:flame/src/effects/provider_interfaces.dart';
-import 'package:vector_math/vector_math_64.dart';
 
 /// Base class for effects that affect the `position` of their targets.
 ///
@@ -21,6 +21,7 @@ abstract class MoveEffect extends Effect
     super.controller,
     PositionProvider? target, {
     super.onComplete,
+    super.key,
   }) {
     this.target = target;
   }
@@ -30,24 +31,28 @@ abstract class MoveEffect extends Effect
     EffectController controller, {
     PositionProvider? target,
     void Function()? onComplete,
+    ComponentKey? key,
   }) =>
       MoveByEffect(
         offset,
         controller,
         target: target,
         onComplete: onComplete,
+        key: key,
       );
 
   factory MoveEffect.to(
     Vector2 destination,
     EffectController controller, {
     PositionProvider? target,
     void Function()? onComplete,
+    ComponentKey? key,
   }) =>
       MoveToEffect(
         destination,
         controller,
         target: target,
         onComplete: onComplete,
+        key: key,
       );
 }

packages/flame/lib/src/effects/move_to_effect.dart

@@ -24,6 +24,7 @@ class MoveToEffect extends MoveEffect {
     EffectController controller, {
     PositionProvider? target,
     void Function()? onComplete,
+    super.key,
   })  : _destination = destination.clone(),
         _offset = Vector2.zero(),
         super(controller, target, onComplete: onComplete);

packages/flame/lib/src/effects/opacity_effect.dart

@@ -1,3 +1,4 @@
+import 'package:flame/components.dart';
 import 'package:flame/effects.dart';
 
 /// Change the opacity of a component over time.
@@ -13,6 +14,7 @@ class OpacityEffect extends Effect with EffectTarget<OpacityProvider> {
     super.controller, {
     OpacityProvider? target,
     super.onComplete,
+    super.key,
   }) : _opacityOffset = offset {
     this.target = target;
   }
@@ -23,38 +25,44 @@ class OpacityEffect extends Effect with EffectTarget<OpacityProvider> {
     EffectController controller, {
     OpacityProvider? target,
     void Function()? onComplete,
+    ComponentKey? key,
   }) {
     return _OpacityToEffect(
       targetOpacity,
       controller,
       target: target,
       onComplete: onComplete,
+      key: key,
     );
   }
 
   factory OpacityEffect.fadeIn(
     EffectController controller, {
     OpacityProvider? target,
     void Function()? onComplete,
+    ComponentKey? key,
   }) {
     return _OpacityToEffect(
       1.0,
       controller,
       target: target,
       onComplete: onComplete,
+      key: key,
     );
   }
 
   factory OpacityEffect.fadeOut(
     EffectController controller, {
     OpacityProvider? target,
     void Function()? onComplete,
+    ComponentKey? key,
   }) {
     return _OpacityToEffect(
       0.0,
       controller,
       target: target,
       onComplete: onComplete,
+      key: key,
     );
   }
 
@@ -89,6 +97,7 @@ class _OpacityToEffect extends OpacityEffect {
     EffectController controller, {
     OpacityProvider? target,
     void Function()? onComplete,
+    super.key,
   }) : super.by(
           0.0,
           controller,

packages/flame/lib/src/effects/remove_effect.dart

@@ -6,6 +6,7 @@ class RemoveEffect extends ComponentEffect {
   RemoveEffect({
     double delay = 0.0,
     void Function()? onComplete,
+    super.key,
   }) : super(
           LinearEffectController(delay),
           onComplete: onComplete,

packages/flame/lib/src/effects/rotate_effect.dart

@@ -1,3 +1,4 @@
+import 'package:flame/components.dart';
 import 'package:flame/src/effects/controllers/effect_controller.dart';
 import 'package:flame/src/effects/effect.dart';
 import 'package:flame/src/effects/effect_target.dart';
@@ -25,17 +26,20 @@ class RotateEffect extends Effect
     double angle,
     super.controller, {
     super.onComplete,
+    super.key,
   }) : _angle = angle;
 
   factory RotateEffect.to(
     double angle,
     EffectController controller, {
     void Function()? onComplete,
+    ComponentKey? key,
   }) {
     return _RotateToEffect(
       angle,
       controller,
       onComplete: onComplete,
+      key: key,
     );
   }
 
@@ -58,6 +62,7 @@ class _RotateToEffect extends RotateEffect {
     double angle,
     EffectController controller, {
     void Function()? onComplete,
+    super.key,
   })  : _destinationAngle = angle,
         super.by(0, controller, onComplete: onComplete);