Dart for Game Developers

Transcript

1. for Game Developers Don Olmstead Sr Software Engineer SNEI
2. I’m a native programmer working on the web platform for the PS4 And I want games on the web
5. JavaScript
8. C Java Objective-C C++ Basic C# Pascal Ada Fortran Forth D Go Haskell Scala Erlang Delphi Smalltalk Oberon ML Eiffel Icon PL/I Caml/F# Rust PHP Python Perl Ruby R Lisp/Scheme MATLAB APL NXT-G Lua ABC Scratch J Oz Groovy ActionScript Awk ...
10. CHANGE WE CAN BELIEVE IN
11. x86/x64 PowerPC ARM JavaScript
12. JavaScript is irrelevant to the modern web
13. CoffeeScript TypeScript ClojureScript Haxe Emscripten JSIL GWT ...
15. "Dart helps developers from all platforms build complex, high performance client apps for the modern web."
18. Virtual Machine (dart) Code analysis (dartanalyzer) JS compilation (dart2js) Package management (pub) Documentation generation (docgen) Profiling (Observatory) Editing (Dart Editor)
22. library math3d; import ‘dart:math’ as Math; class Vector2 { double x; double y; Vector2(this.x, this.y); Vector2 operator +(Vector2 rhs) { return new Vector2(x + rhs.x, y + rhs.y); } double get length => Math.sqrt(x * x + y * y); }
23. library math3d; import ‘dart:math’ as Math; class Vector2 { double x; double y; Vector2(this.x, this.y); Vector2 operator +(Vector2 rhs) { return new Vector2(x + rhs.x, y + rhs.y); } double get length => Math.sqrt(x * x + y * y); }
24. library math3d; import ‘dart:math’ as Math; class Vector2 { double x; double y; Vector2(this.x, this.y); Vector2 operator +(Vector2 rhs) { return new Vector2(x + rhs.x, y + rhs.y); } double get length => Math.sqrt(x * x + y * y); }
25. library math3d; import ‘dart:math’ as Math; class Vector2 { double x; double y; Vector2(this.x, this.y); Vector2 operator +(Vector2 rhs) { return new Vector2(x + rhs.x, y + rhs.y); } double get length => Math.sqrt(x * x + y * y); }
26. library math3d; import ‘dart:math’ as Math; class Vector2 { double x; double y; Vector2(this.x, this.y); Vector2 operator +(Vector2 rhs) { return new Vector2(x + rhs.x, y + rhs.y); } double get length => Math.sqrt(x * x + y * y); }
27. library math3d; import ‘dart:math’ as Math; class Vector2 { double x; double y; Vector2(this.x, this.y); Vector2 operator +(Vector2 rhs) { return new Vector2(x + rhs.x, y + rhs.y); } double get length => Math.sqrt(x * x + y * y); }
28. library math3d; import ‘dart:math’ as Math; class Vector2 { double x; double y; Vector2(this.x, this.y); Vector2 operator +(Vector2 rhs) { return new Vector2(x + rhs.x, y + rhs.y); } double get length => Math.sqrt(x * x + y * y); }
29. abstract class Disposable { bool get isDisposed; void dispose(); } class GraphicsResource implements Disposable { GraphicsDevice _graphicsDevice; bool get isDisposed => _graphicsDevice == null; void dispose() { _graphicsDevice._destroyWithoutBinding(this); } }
30. abstract class Disposable { bool get isDisposed; void dispose(); } class GraphicsResource implements Disposable { GraphicsDevice _graphicsDevice; bool get isDisposed => _graphicsDevice == null; void dispose() { _graphicsDevice._destroyWithoutBinding(this); } }
31. abstract class Disposable { bool get isDisposed; void dispose(); } class GraphicsResource implements Disposable { GraphicsDevice _graphicsDevice; bool get isDisposed => _graphicsDevice == null; void dispose() { _graphicsDevice._destroyWithoutBinding(this); } }
32. abstract class Disposable { bool get isDisposed; void dispose(); } class GraphicsResource implements Disposable { GraphicsDevice _graphicsDevice; bool get isDisposed => _graphicsDevice == null; void dispose() { _graphicsDevice._destroyWithoutBinding(this); } }
33. class GraphicsResource implements Disposable { void dispose() { _graphicsDevice._destroyWithoutBinding(this); } } class VertexBuffer extends GraphicsResource { @override void dispose() { _graphicsDevice._destroyVertexBuffer(this); } }
34. class GraphicsResource implements Disposable { void dispose() { _graphicsDevice._destroyWithoutBinding(this); } } class VertexBuffer extends GraphicsResource { @override void dispose() { _graphicsDevice._destroyVertexBuffer(this); } }
35. class GraphicsResource implements Disposable { void dispose() { _graphicsDevice._destroyWithoutBinding(this); } } class VertexBuffer extends GraphicsResource { @override void dispose() { _graphicsDevice._destroyVertexBuffer(this); } }
36. typedef T Init<T>(); typedef void Term<T>(T value); class ObjectPool<T> { List<T> _objects; ObjectPool(int size, Init<T> initializer, Term<T> terminator) { _objects = new List<T>(size); for (var i = 0; i < size; ++i) { var object = initializer(); terminator(object); _objects[i] = object; } } }
37. typedef T Init<T>(); typedef void Term<T>(T value); class ObjectPool<T> { List<T> _objects; ObjectPool(int size, Init<T> initializer, Term<T> terminator) { _objects = new List<T>(size); for (var i = 0; i < size; ++i) { var object = initializer(); terminator(object); _objects[i] = object; } } }
38. typedef T Init<T>(); typedef void Term<T>(T value); class ObjectPool<T> { List<T> _objects; ObjectPool(int size, Init<T> initializer, Term<T> terminator) { _objects = new List<T>(size); for (var i = 0; i < size; ++i) { var object = initializer(); terminator(object); _objects[i] = object; } } }
39. abstract class Selectable { bool _selected = false; bool get selected => _selected; set selected(bool value) { setSelected(value); } } @CustomTag(‘px-tree-node’) class TreeViewNode extends PolymerElement with Expandable, Customizable, Selectable { ... }
40. abstract class Selectable { bool _selected = false; bool get selected => _selected; set selected(bool value) { setSelected(value); } } @CustomTag(‘px-tree-node’) class TreeViewNode extends PolymerElement with Expandable, Customizable, Selectable { ... }
41. abstract class Selectable { bool _selected = false; bool get selected => _selected; set selected(bool value) { setSelected(value); } } @CustomTag(‘px-tree-node’) class TreeViewNode extends PolymerElement with Expandable, Customizable, Selectable { ... }
42. class DebugRenderingContext implements WebGL.RenderingContext { dynamic noSuchMethod(Invocation invocation) { var mirror = reflect(_gl); var result = mirror.delegate(invocation); int errorCode = _gl.getError(); while (errorCode != WebGL.NO_ERROR) { if (!_onErrorController.isPaused) { var methodName = MirrorSystem.getName(invocation.memberName); _onErrorController.add( new RenderingErrorEvent._internal(errorCode, methodName)); errorCode = _gl.getError(); } } return result; } }
44. class BlendState extends GraphicsResource { BlendState(GraphicsDevice device) : super._internalWithoutBinding(device); BlendState.additive(String name, GraphicsDevice device) : super._internalWithoutBinding(device) , alphaDestinationBlend = Blend.One , alphaSourceBlend = Blend.SourceAlpha , colorDestinationBlend = Blend.One , colorSourceBlend = Blend.SourceAlpha; } var blendState = new BlendState.additive();
45. BlendState createBlendState() { var state = new BlendState(device); state..enabled = true ..alphaDestinationBlend = Blend.One ..alphaSourceBlend = Blend.One ..colorBlendOperation = BlendOperation.Add ..colorDestinationBlend = Blend.One ..blendFactorRed = 1.0 ..blendFactorGreen = 1.0 ..blendFactorBlue = 1.0 ..blendFactorAlpha = 1.0; return state; }
47. class TextureManager { Future<Texture> loadTexture(String path) { ... } } void initTextures() { textureManager.loadTexture('uv.jpg').then((texture) { effect.parameters['uTexture'] = texture; }); }
48. class GraphicsDevice { StreamController<ResourceCreatedEvent> _onResourceCreatedController; Stream<ResourceCreatedEvent> _onResourceCreated; Stream<ResourceCreatedEvent> get onResourceCreated => _onResourceCreated; void _notifyResourceCreated(GraphicsResource graphicsResource) { if (!_onResourceCreatedController.isPaused) { _onResourceCreatedController.add( new ResourceCreatedEvent._internal(graphicsResource) ); } } }
49. Server libraries Collections Serialization JS Interop Angular.dart Polymer.dart AND MANY MORE!
50. #perfmatters
55. Faster JS performance And an even faster VM!
57. enum E { id1, ... idn }
58. @lazy import 'foo.dart' as foo; const lazy = const DeferredLibrary('com.example.foo'); void main() { foo.method(); // Throws a NoSuchMethodError, foo is not loaded yet. lazy.load().then(onFooLoaded); } void onFooLoaded(_) { foo.method(); }
59. async Future<int> foo() { var longRunningTask = longRunningOperation(); // Wait for result var result = await longRunningTask; print(result); } async Future<int> longRunningOperation() { .. }
60. Thank you! g+ google.com/+DonOlmstead twitter @don_olmstead www donolmstead.me github github.com/donny-dont