Moves sky sprites to its own package

examples/game/lib/game_demo.dart

@@ -3,9 +3,9 @@ library game;
 import 'dart:async';
 import 'dart:math' as math;
 import 'dart:sky' as sky;
-import 'sprites.dart';
 
 import 'package:sky/rendering/object.dart';
 import 'package:sky/widgets/framework.dart';
+import 'package:skysprites/skysprites.dart';
 
 part 'game_demo_node.dart';

examples/game/lib/main.dart

@@ -14,9 +14,9 @@ import 'package:sky/widgets/navigator.dart';
 import 'package:sky/widgets/framework.dart';
 import 'package:sky/widgets/title.dart';
 import 'package:sky/widgets/theme.dart';
+import 'package:skysprites/skysprites.dart';
 
 import 'game_demo.dart';
-import 'sprites.dart';
 
 AssetBundle _initBundle() {
   if (rootBundle != null)

examples/game/pubspec.yaml

@@ -2,8 +2,11 @@ name: asteroids
 dependencies:
   sky: any
   sky_tools: any
+  skysprites: any
 dependency_overrides:
   material_design_icons:
     path: ../../sky/packages/material_design_icons
   sky:
     path: ../../sky/packages/sky
+  skysprites:
+    path: ../../skysprites

examples/game/test_drawatlas.dart

-import 'lib/sprites.dart';
-
 import 'dart:sky';
 
 import 'package:sky/mojo/asset_bundle.dart';
@@ -7,6 +5,7 @@ import 'package:sky/rendering/object.dart';
 import 'package:sky/theme/colors.dart' as colors;
 import 'package:sky/widgets/basic.dart';
 import 'package:sky/widgets.dart';
+import 'package:skysprites/skysprites.dart';
 
 AssetBundle _initBundle() {
   if (rootBundle != null)

examples/game/test_performance.dart

@@ -5,8 +5,7 @@ import 'package:sky/mojo/asset_bundle.dart';
 import 'package:sky/rendering/object.dart';
 import 'package:sky/theme/colors.dart' as colors;
 import 'package:sky/widgets.dart';
-
-import 'lib/sprites.dart';
+import 'package:skysprites/skysprites.dart';
 
 AssetBundle _initBundle() {
   if (rootBundle != null)

packages/flutter_sprites/.gitignore

+.DS_Store
+.idea
+.packages
+.pub/
+build/
+packages
+pubspec.lock

packages/flutter_sprites/README.md

+# skysprites
+
+A minimal Sky project.
+
+## Getting Started
+
+For help getting started with Sky, view our online
+[documentation](https://github.com/domokit/sky_engine/blob/master/sky/packages/sky/README.md).

examples/game/lib/action.dart → packages/flutter_sprites/lib/action.dart

-part of sprites;
+part of skysprites;
 
 typedef void ActionCallback();
 

examples/game/lib/action_spline.dart → packages/flutter_sprites/lib/action_spline.dart

-part of sprites;
+part of skysprites;
 
 Point _cardinalSplineAt(Point p0, Point p1, Point p2, Point p3, double tension, double t) {
   double t2 = t * t;

examples/game/lib/color_secuence.dart → packages/flutter_sprites/lib/color_secuence.dart

-part of sprites;
+part of skysprites;
 
 /// A sequence of colors representing a gradient or a color transition over
 /// time. The sequence is represented by a list of [colors] and a list of

examples/game/lib/constraint.dart → packages/flutter_sprites/lib/constraint.dart

-part of sprites;
+part of skysprites;
 
 abstract class Constraint {
   void preUpdate(Node node, double dt) {

examples/game/lib/image_map.dart → packages/flutter_sprites/lib/image_map.dart

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-part of sprites;
+part of skysprites;
 
 class ImageMap {
   ImageMap(AssetBundle bundle) : _bundle = bundle;

examples/game/lib/layer.dart → packages/flutter_sprites/lib/layer.dart

-part of sprites;
+part of skysprites;
 
 /// A [Node] that provides an intermediate rendering surface in the sprite
 /// rendering tree. A [Layer] can be used to change the opacity, color, or to

examples/game/lib/node.dart → packages/flutter_sprites/lib/node.dart

-part of sprites;
+part of skysprites;
 
 double convertDegrees2Radians(double degrees) => degrees * math.PI/180.8;
 

examples/game/lib/node3d.dart → packages/flutter_sprites/lib/node3d.dart

-part of sprites;
+part of skysprites;
 
 /// An node that transforms its children using a 3D perspective projection. This
 /// node type can be used to create 3D flips and other similar effects.

examples/game/lib/node_with_size.dart → packages/flutter_sprites/lib/node_with_size.dart

-part of sprites;
+part of skysprites;
 
 /// The super class of any [Node] that has a size.
 ///

examples/game/lib/particle_system.dart → packages/flutter_sprites/lib/particle_system.dart

-part of sprites;
+part of skysprites;
 
 class _Particle {
   Vector2 pos;

examples/game/lib/sprites.dart → packages/flutter_sprites/lib/skysprites.dart

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-library sprites;
+library skysprites;
 
 import 'dart:async';
 import 'dart:convert';

examples/game/lib/sound.dart → packages/flutter_sprites/lib/sound.dart

-part of sprites;
+part of skysprites;
 
 // TODO: The sound effects should probably use Android's SoundPool instead of
 // MediaPlayer as it is more efficient and flexible for playing back sound effects

examples/game/lib/sound_manager.dart → packages/flutter_sprites/lib/sound_manager.dart

-part of sprites;
+part of skysprites;
 
 enum SoundFadeMode {
   crossFade,

examples/game/lib/sprite.dart → packages/flutter_sprites/lib/sprite.dart

-part of sprites;
+part of skysprites;
 
 /// A Sprite is a [Node] that renders a bitmap image to the screen.
 class Sprite extends NodeWithSize with SpritePaint {

examples/game/lib/sprite_box.dart → packages/flutter_sprites/lib/sprite_box.dart

-part of sprites;
+part of skysprites;
 
 /// Options for setting up a [SpriteBox].
 ///

examples/game/lib/sprite_widget.dart → packages/flutter_sprites/lib/sprite_widget.dart

-part of sprites;
+part of skysprites;
 
 /// A widget that uses a [SpriteBox] to render a sprite node tree to the screen.
 class SpriteWidget extends OneChildRenderObjectWrapper {

examples/game/lib/spritesheet.dart → packages/flutter_sprites/lib/spritesheet.dart

-part of sprites;
+part of skysprites;
 
 /// A sprite sheet packs a number of smaller images into a single large image.
 ///

examples/game/lib/texture.dart → packages/flutter_sprites/lib/texture.dart

-part of sprites;
+part of skysprites;
 
 /// A texture represents a rectangular area of an image and is typically used to draw a sprite to the screen.
 ///

examples/game/lib/util.dart → packages/flutter_sprites/lib/util.dart

-part of sprites;
+part of skysprites;
 
 
 math.Random _random = new math.Random();

examples/game/lib/virtual_joystick.dart → packages/flutter_sprites/lib/virtual_joystick.dart

-part of sprites;
+part of skysprites;
 
 class VirtualJoystick extends NodeWithSize {
   VirtualJoystick() : super(new Size(160.0, 160.0)) {

packages/flutter_sprites/pubspec.yaml

+name: skysprites
+description: A sprite toolkit built on top of Sky.
+version: 0.0.1
+dependencies:
+  sky: any
+  sky_tools: any