formatting and fixes

lib/animation.dart

@@ -1,9 +1,7 @@
-import 'dart:math' as math;
 import 'sprite.dart';
 
 /// Represents a single animation frame
 class Frame {
-
   /// The [Sprite] to be displayed
   Sprite sprite;
 
@@ -16,7 +14,6 @@ class Frame {
 
 /// Represents an animation, that is, a list of sprites that change with time.
 class Animation {
-
   /// The frames that compose this animation.
   List<Frame> frames = [];
 
@@ -27,7 +24,7 @@ class Animation {
   ///
   /// It's ticked by the update method. It's reset every frame change.
   double clock = 0.0;
- 
+
   /// Wether the animation loops after the last sprite of the list, going back to the first, or keeps returning the last when done.
   bool loop = true;
 
@@ -109,7 +106,7 @@ class Animation {
 
   /// Sets a different step time to each frame. The sizes of the arrays must match.
   void set variableStepTimes(List<double> stepTimes) {
-    assert (stepTimes.length == frames.length);
+    assert(stepTimes.length == frames.length);
     for (int i = 0; i < frames.length; i++) {
       frames[i].stepTime = stepTimes[i];
     }

lib/audio_pool.dart

@@ -7,7 +7,6 @@ import 'package:synchronized/synchronized.dart';
 typedef void Stoppable();
 
 class AudioPool {
-
   AudioCache cache;
   Map<String, AudioPlayer> currentPlayers = {};
   List<AudioPlayer> availablePlayers = [];
@@ -18,7 +17,11 @@ class AudioPool {
 
   Lock _lock = new Lock();
 
-  AudioPool(this.sound, { this.repeating = false, this.maxPlayers = 1, this.minPlayers = 1, String prefix = 'audio/sfx/' }) {
+  AudioPool(this.sound,
+      {this.repeating = false,
+      this.maxPlayers = 1,
+      this.minPlayers = 1,
+      String prefix = 'audio/sfx/'}) {
     cache = new AudioCache(prefix: prefix);
   }
 
@@ -28,7 +31,7 @@ class AudioPool {
     }
   }
 
-  Future<Stoppable> start({ double volume = 1.0 }) async {
+  Future<Stoppable> start({double volume = 1.0}) async {
     return _lock.synchronized(() async {
       if (availablePlayers.isEmpty) {
         availablePlayers.add(await _createNewAudioPlayer());

lib/flame.dart

@@ -17,7 +17,6 @@ export 'gamepad.dart';
 /// You can access shared instances of [AudioCache], [Images] and [Util].
 /// Most games should need only one instance of each, and should use this class to manage that reference.
 class Flame {
-
   /// Access a shared instance of the [AudioCache] class.
   static AudioCache audio = new AudioCache(prefix: 'audio/');
 

lib/game.dart

@@ -154,7 +154,8 @@ class _GameRenderBox extends RenderBox with WidgetsBindingObserver {
 /// It is based on the Component system.
 abstract class BaseGame extends Game {
   /// The list of components to be updated and rendered by the base game.
-  OrderedSet<Component> components = new OrderedSet(Comparing.on((c) => c.priority()));
+  OrderedSet<Component> components =
+      new OrderedSet(Comparing.on((c) => c.priority()));
 
   /// Components added by the [addLater] method
   List<Component> _addLater = [];

lib/gamepad.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/services.dart';
 
-typedef void KeyListener (RawKeyEvent event);
+typedef void KeyListener(RawKeyEvent event);
-typedef void GamepadListener (String evtType, String key);
+typedef void GamepadListener(String evtType, String key);
 
 const GAMEPAD_BUTTON_UP = "UP";
 const GAMEPAD_BUTTON_DOWN = "DOWN";
@@ -26,13 +26,13 @@ const GAMEPAD_BUTTON_START = "START";
 const GAMEPAD_BUTTON_SELECT = "SELECT";
 
 const ANDROID_MAPPING = {
-  19:  GAMEPAD_DPAD_UP,
+  19: GAMEPAD_DPAD_UP,
-  20:  GAMEPAD_DPAD_DOWN,
+  20: GAMEPAD_DPAD_DOWN,
-  21:  GAMEPAD_DPAD_LEFT,
+  21: GAMEPAD_DPAD_LEFT,
-  22:  GAMEPAD_DPAD_RIGHT,
+  22: GAMEPAD_DPAD_RIGHT,
-  96:  GAMEPAD_BUTTON_A,
+  96: GAMEPAD_BUTTON_A,
-  97:  GAMEPAD_BUTTON_B,
+  97: GAMEPAD_BUTTON_B,
-  99:  GAMEPAD_BUTTON_X,
+  99: GAMEPAD_BUTTON_X,
   100: GAMEPAD_BUTTON_Y,
   102: GAMEPAD_BUTTON_L1,
   103: GAMEPAD_BUTTON_R1,
@@ -46,12 +46,12 @@ const ANDROID_MAPPING = {
 ///
 /// To use this class, access it via [Flame.gamepad].
 class Gamepad {
-
   KeyListener listener;
 
   void addListener(GamepadListener gamepadListener) {
     this.listener = (RawKeyEvent e) {
-      String evtType = e is RawKeyDownEvent ? GAMEPAD_BUTTON_DOWN : GAMEPAD_BUTTON_UP;
+      String evtType =
+          e is RawKeyDownEvent ? GAMEPAD_BUTTON_DOWN : GAMEPAD_BUTTON_UP;
 
       if (e.data is RawKeyEventDataAndroid) {
         RawKeyEventDataAndroid androidEvent = e.data as RawKeyEventDataAndroid;

lib/sprite.dart

@@ -114,6 +114,7 @@ class Sprite {
       return;
     }
     size ??= this.size;
-    renderRect(canvas, new Rect.fromLTWH(p.x - size.x/2, p.y - size.y/2, size.x, size.y));
+    renderRect(canvas,
+        new Rect.fromLTWH(p.x - size.x / 2, p.y - size.y / 2, size.x, size.y));
   }
 }