diff --git a/lib/animation.dart b/lib/animation.dart
index a105a50bb..bf27414b6 100644
--- a/lib/animation.dart
+++ b/lib/animation.dart
@@ -41,7 +41,7 @@ class Animation {
   ///
   /// All frames have the same [stepTime].
   Animation.spriteList(List<Sprite> sprites, {double stepTime, this.loop}) {
-    this.frames = sprites.map((s) => Frame(s, stepTime)).toList();
+    frames = sprites.map((s) => Frame(s, stepTime)).toList();
   }
 
   /// Creates an animation given a list of frames.
@@ -68,7 +68,7 @@ class Animation {
     double textureHeight,
     double stepTime = 0.1,
   }) {
-    this.frames = List<Frame>(amount);
+    frames = List<Frame>(amount);
     for (var i = 0; i < amount; i++) {
       Sprite sprite = Sprite(
         imagePath,
@@ -77,7 +77,7 @@ class Animation {
         width: textureWidth,
         height: textureHeight,
       );
-      this.frames[i] = Frame(sprite, stepTime);
+      frames[i] = Frame(sprite, stepTime);
     }
   }
 
@@ -91,7 +91,7 @@ class Animation {
     double textureWidth,
     double textureHeight,
   }) {
-    this.frames = List<Frame>(amount);
+    frames = List<Frame>(amount);
     for (var i = 0; i < amount; i++) {
       Sprite sprite = Sprite(
         imagePath,
@@ -100,7 +100,7 @@ class Animation {
         width: textureWidth,
         height: textureHeight,
       );
-      this.frames[i] = Frame(sprite, stepTimes[i]);
+      frames[i] = Frame(sprite, stepTimes[i]);
     }
   }
 
@@ -155,14 +155,14 @@ class Animation {
 
   /// Sets a fixed step time to all frames.
   void set stepTime(double stepTime) {
-    this.frames.forEach((frame) => frame.stepTime = stepTime);
+    frames.forEach((frame) => frame.stepTime = stepTime);
   }
 
   /// Resets the animation, like it'd just been created.
   void reset() {
-    this.clock = 0.0;
-    this.elapsed = 0.0;
-    this.currentIndex = 0;
+    clock = 0.0;
+    elapsed = 0.0;
+    currentIndex = 0;
   }
 
   /// Gets tha current [Sprite] that should be shown.
diff --git a/lib/box2d/box2d_component.dart b/lib/box2d/box2d_component.dart
index fa857f79c..8dd0b4e89 100644
--- a/lib/box2d/box2d_component.dart
+++ b/lib/box2d/box2d_component.dart
@@ -29,12 +29,12 @@ abstract class Box2DComponent extends Component {
     this.positionIterations: DEFAULT_POSITION_ITERATIONS,
     double scale: DEFAULT_SCALE,
   }) {
-    if (this.dimensions == null) {
-      this.dimensions = window.physicalSize;
+    if (dimensions == null) {
+      dimensions = window.physicalSize;
     }
     final pool = DefaultWorldPool(worldPoolSize, worldPoolContainerSize);
-    this.world = World.withPool(Vector2(0.0, gravity), pool);
-    this.viewport = Viewport(dimensions, scale);
+    world = World.withPool(Vector2(0.0, gravity), pool);
+    viewport = Viewport(dimensions, scale);
   }
 
   @override
@@ -47,7 +47,7 @@ abstract class Box2DComponent extends Component {
 
   @override
   void render(canvas) {
-    if (viewport.size == Size(0.0, 0.0)) {
+    if (viewport.size == Size.zero) {
       return;
     }
     components.forEach((c) {
@@ -134,7 +134,7 @@ abstract class BodyComponent extends Component {
     }
   }
 
-  Vector2 get center => this.body.worldCenter;
+  Vector2 get center => body.worldCenter;
 
   void _renderCircle(Canvas canvas, Fixture fixture) {
     Vector2 center = Vector2.zero();
diff --git a/lib/box2d/viewport.dart b/lib/box2d/viewport.dart
index f1248447e..7fff22d83 100644
--- a/lib/box2d/viewport.dart
+++ b/lib/box2d/viewport.dart
@@ -17,8 +17,8 @@ class Viewport extends ViewportTransform {
   /// Resizes the current view port.
   void resize(Size size) {
     this.size = size;
-    this.extents = Vector2.copy(Vector2(size.width / 2, size.height / 2));
-    this.center = Vector2.copy(Vector2(size.width / 2, size.height / 2));
+    extents = Vector2.copy(Vector2(size.width / 2, size.height / 2));
+    center = Vector2.copy(Vector2(size.width / 2, size.height / 2));
   }
 
   /// Computes the number of horizontal world meters of this viewport considering a percentage of its width.
diff --git a/lib/components/animation_component.dart b/lib/components/animation_component.dart
index aa5d9f9db..b4301a5ce 100644
--- a/lib/components/animation_component.dart
+++ b/lib/components/animation_component.dart
@@ -25,7 +25,7 @@ class AnimationComponent extends PositionComponent {
   }) {
     this.width = width;
     this.height = height;
-    this.animation = Animation.sequenced(
+    animation = Animation.sequenced(
       imagePath,
       amount,
       textureX: textureX,
diff --git a/lib/components/component.dart b/lib/components/component.dart
index 9901ea574..810c05e7a 100644
--- a/lib/components/component.dart
+++ b/lib/components/component.dart
@@ -65,30 +65,30 @@ abstract class PositionComponent extends Component {
 
   Position toPosition() => Position(x, y);
   void setByPosition(Position position) {
-    this.x = position.x;
-    this.y = position.y;
+    x = position.x;
+    y = position.y;
   }
 
   Position toSize() => Position(width, height);
   void setBySize(Position size) {
-    this.width = size.x;
-    this.height = size.y;
+    width = size.x;
+    height = size.y;
   }
 
   Rect toRect() => Rect.fromLTWH(x, y, width, height);
   void setByRect(Rect rect) {
-    this.x = rect.left;
-    this.y = rect.top;
-    this.width = rect.width;
-    this.height = rect.height;
+    x = rect.left;
+    y = rect.top;
+    width = rect.width;
+    height = rect.height;
   }
 
   double angleBetween(PositionComponent c) {
-    return (atan2(c.x - this.x, this.y - c.y) - pi / 2) % (2 * pi);
+    return (atan2(c.x - x, y - c.y) - pi / 2) % (2 * pi);
   }
 
   double distance(PositionComponent c) {
-    return sqrt(pow(this.y - c.y, 2) + pow(this.x - c.x, 2));
+    return sqrt(pow(y - c.y, 2) + pow(x - c.x, 2));
   }
 
   void prepareCanvas(Canvas canvas) {
diff --git a/lib/components/composed_component.dart b/lib/components/composed_component.dart
index 5626fd5d8..53fc417a0 100644
--- a/lib/components/composed_component.dart
+++ b/lib/components/composed_component.dart
@@ -56,7 +56,7 @@ mixin ComposedComponent on Component {
   }
 
   void add(Component c) {
-    this.components.add(c);
+    components.add(c);
 
     if (this is Resizable) {
       // first time resize
@@ -68,5 +68,5 @@ mixin ComposedComponent on Component {
   }
 
   List<Resizable> children() =>
-      this.components.where((r) => r is Resizable).cast<Resizable>().toList();
+      components.where((r) => r is Resizable).cast<Resizable>().toList();
 }
diff --git a/lib/components/parallax_component.dart b/lib/components/parallax_component.dart
index 2004d93c6..cc094b2fc 100644
--- a/lib/components/parallax_component.dart
+++ b/lib/components/parallax_component.dart
@@ -57,7 +57,7 @@ abstract class ParallaxComponent extends PositionComponent {
 
   @override
   void resize(Size size) {
-    this._size = size;
+    _size = size;
   }
 
   /// Loads the images defined by this list of filenames. All images are positioned at its scroll center.
@@ -103,7 +103,7 @@ abstract class ParallaxComponent extends PositionComponent {
 
   @override
   void update(double delta) {
-    if (!this.loaded()) {
+    if (!loaded()) {
       return;
     }
     for (int i = 0; i < _layers.length; i++) {
diff --git a/lib/components/text_component.dart b/lib/components/text_component.dart
index 264c3d583..e8ebfed3f 100644
--- a/lib/components/text_component.dart
+++ b/lib/components/text_component.dart
@@ -25,14 +25,14 @@ class TextComponent extends PositionComponent {
   }
 
   TextComponent(this._text, {TextConfig config = const TextConfig()}) {
-    this._config = config;
+    _config = config;
     _updateBox();
   }
 
   void _updateBox() {
     TextPainter tp = config.toTextPainter(text);
-    this.width = tp.width;
-    this.height = tp.height;
+    width = tp.width;
+    height = tp.height;
   }
 
   @override
diff --git a/lib/components/tiled_component.dart b/lib/components/tiled_component.dart
index 522b4581d..0b5de2413 100644
--- a/lib/components/tiled_component.dart
+++ b/lib/components/tiled_component.dart
@@ -17,14 +17,14 @@ class TiledComponent extends Component {
   static Paint paint = Paint()..color = Colors.white;
 
   TiledComponent(this.filename) {
-    this.future = _load();
+    future = _load();
   }
 
   Future _load() async {
-    this.map = await _loadMap();
-    this.image = await Flame.images.load(map.tilesets[0].image.source);
-    this.images = await _loadImages(map);
-    this._loaded = true;
+    map = await _loadMap();
+    image = await Flame.images.load(map.tilesets[0].image.source);
+    images = await _loadImages(map);
+    _loaded = true;
   }
 
   Future<TileMap> _loadMap() {
diff --git a/lib/game.dart b/lib/game.dart
index a7522e815..10701ba42 100644
--- a/lib/game.dart
+++ b/lib/game.dart
@@ -61,7 +61,7 @@ class _GameRenderObjectWidget extends SingleChildRenderObjectWidget {
 
   @override
   RenderObject createRenderObject(BuildContext context) =>
-      _GameRenderBox(context, this.game);
+      _GameRenderBox(context, game);
 
   @override
   void updateRenderObject(BuildContext context, _GameRenderBox _gameRenderBox) {
@@ -193,8 +193,8 @@ abstract class BaseGame extends Game {
   ///
   /// Also calls [preAdd], witch in turn sets the current size on the component (because the resize hook won't be called until a new resize happens).
   void add(Component c) {
-    this.preAdd(c);
-    this.components.add(c);
+    preAdd(c);
+    components.add(c);
   }
 
   /// Registers a component to be added on the components on the next tick.
@@ -202,8 +202,8 @@ abstract class BaseGame extends Game {
   /// Use this to add components in places where a concurrent issue with the update method might happen.
   /// Also calls [preAdd] for the component added, immediately.
   void addLater(Component c) {
-    this.preAdd(c);
-    this._addLater.add(c);
+    preAdd(c);
+    _addLater.add(c);
   }
 
   /// This implementation of render basically calls [renderComponent] for every component, making sure the canvas is reset for each one.
diff --git a/lib/position.dart b/lib/position.dart
index 98f8e2d3f..7ad8c4c14 100644
--- a/lib/position.dart
+++ b/lib/position.dart
@@ -40,43 +40,43 @@ class Position {
   Position.fromVector(b2d.Vector2 vector) : this(vector.x, vector.y);
 
   Position add(Position other) {
-    this.x += other.x;
-    this.y += other.y;
+    x += other.x;
+    y += other.y;
     return this;
   }
 
   Position minus(Position other) {
-    return this.add(other.clone().opposite());
+    return add(other.clone().opposite());
   }
 
   Position opposite() {
-    return this.times(-1.0);
+    return times(-1.0);
   }
 
   Position times(double scalar) {
-    this.x *= scalar;
-    this.y *= scalar;
+    x *= scalar;
+    y *= scalar;
     return this;
   }
 
   double dotProduct(Position p) {
-    return this.x * p.x + this.y * p.y;
+    return x * p.x + y * p.y;
   }
 
   double length() {
-    return math.sqrt(math.pow(this.x, 2) + math.pow(this.y, 2));
+    return math.sqrt(math.pow(x, 2) + math.pow(y, 2));
   }
 
   Position rotate(double angle) {
-    double nx = math.cos(angle) * this.x - math.sin(angle) * this.y;
-    double ny = math.sin(angle) * this.x + math.cos(angle) * this.y;
-    this.x = nx;
-    this.y = ny;
+    double nx = math.cos(angle) * x - math.sin(angle) * y;
+    double ny = math.sin(angle) * x + math.cos(angle) * y;
+    x = nx;
+    y = ny;
     return this;
   }
 
   double distance(Position other) {
-    return this.minus(other).length();
+    return minus(other).length();
   }
 
   ui.Offset toOffset() {
diff --git a/lib/profiler.dart b/lib/profiler.dart
index 8df91bb89..a39cb2b72 100644
--- a/lib/profiler.dart
+++ b/lib/profiler.dart
@@ -9,15 +9,15 @@ class Profiler {
   List<double> dts = [];
 
   Profiler(this.name) {
-    this.tick();
+    tick();
   }
 
   void tick() {
-    this.dts.add(currentTime());
+    dts.add(currentTime());
   }
 
   void end() {
-    this.tick();
+    tick();
     Records.save(this);
   }
 
diff --git a/lib/sprite.dart b/lib/sprite.dart
index fd78fb41a..53e10ef2b 100644
--- a/lib/sprite.dart
+++ b/lib/sprite.dart
@@ -24,8 +24,8 @@ class Sprite {
       if (height == null) {
         height = img.height.toDouble();
       }
-      this.image = img;
-      this.src = Rect.fromLTWH(x, y, width, height);
+      image = img;
+      src = Rect.fromLTWH(x, y, width, height);
     });
   }
 
@@ -42,7 +42,7 @@ class Sprite {
     if (height == null) {
       height = image.height.toDouble();
     }
-    this.src = Rect.fromLTWH(x, y, width, height);
+    src = Rect.fromLTWH(x, y, width, height);
   }
 
   static Future<Sprite> loadSprite(
@@ -66,9 +66,9 @@ class Sprite {
     return image != null && src != null;
   }
 
-  double get _imageWidth => this.image.width.toDouble();
+  double get _imageWidth => image.width.toDouble();
 
-  double get _imageHeight => this.image.height.toDouble();
+  double get _imageHeight => image.height.toDouble();
 
   Position get originalSize {
     if (!loaded()) {
@@ -87,14 +87,14 @@ class Sprite {
   /// Anchor is on top left as default.
   /// If not loaded, does nothing.
   void renderScaled(Canvas canvas, Position p, [double scale = 1.0]) {
-    if (!this.loaded()) {
+    if (!loaded()) {
       return;
     }
     renderPosition(canvas, p, size.times(scale));
   }
 
   void renderPosition(Canvas canvas, Position p, [Position size]) {
-    if (!this.loaded()) {
+    if (!loaded()) {
       return;
     }
     size ??= this.size;
@@ -102,16 +102,16 @@ class Sprite {
   }
 
   void render(Canvas canvas, [double width, double height]) {
-    if (!this.loaded()) {
+    if (!loaded()) {
       return;
     }
-    width ??= this.size.x;
-    height ??= this.size.y;
+    width ??= size.x;
+    height ??= size.y;
     renderRect(canvas, Rect.fromLTWH(0.0, 0.0, width, height));
   }
 
   void renderRect(Canvas canvas, Rect dst) {
-    if (!this.loaded()) {
+    if (!loaded()) {
       return;
     }
     canvas.drawImageRect(image, src, dst, paint);
@@ -122,7 +122,7 @@ class Sprite {
   /// If [size] is not provided, the original size of the src image is used.
   /// If the asset is not yet loaded, it does nothing.
   void renderCentered(Canvas canvas, Position p, [Position size]) {
-    if (!this.loaded()) {
+    if (!loaded()) {
       return;
     }
     size ??= this.size;