test_drawatlas.dart 1.59 KB
Newer Older
1 2
import 'dart:sky';

3
import 'package:sky/material.dart';
4
import 'package:sky/rendering.dart';
5
import 'package:sky/services.dart';
6
import 'package:sky/widgets.dart';
7
import 'package:skysprites/skysprites.dart';
8 9 10 11 12 13 14 15 16 17 18

AssetBundle _initBundle() {
  if (rootBundle != null)
    return rootBundle;
  return new NetworkAssetBundle(Uri.base);
}

final AssetBundle _bundle = _initBundle();

ImageMap _images;
SpriteSheet _spriteSheet;
19 20 21 22 23

final ThemeData _theme = new ThemeData(
  brightness: ThemeBrightness.light,
  primarySwatch: Colors.purple
);
24 25 26 27 28 29 30 31 32 33 34

main() async {
  _images = new ImageMap(_bundle);

  await _images.load([
    'assets/sprites.png'
  ]);

  String json = await _bundle.loadString('assets/sprites.json');
  _spriteSheet = new SpriteSheet(_images['assets/sprites.png'], json);

35 36 37 38
  runApp(new App(
    title: 'Test drawAtlas',
    theme: _theme,
    routes: {
39
      '/': (RouteArguments args) {
40
        return new SpriteWidget(
41 42
          new TestDrawAtlas(),
          SpriteBoxTransformMode.fixedWidth
43 44 45 46
        );
      }
    }
  ));
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
}

class TestDrawAtlas extends NodeWithSize {
  TestDrawAtlas() : super(new Size(1024.0, 1024.0)) {
  }

  void paint(PaintingCanvas canvas) {
    List<RSTransform> transforms = [
      new RSTransform(1.0, 0.0, 100.0, 100.0)
    ];
    List<Rect> rects = [
      _spriteSheet["ship.png"].frame
    ];
    List<Color> colors = [
      new Color(0xffffffff)
    ];

    canvas.drawAtlas(
      _spriteSheet.image,
      transforms,
      rects,
      colors,
      TransferMode.src,
      null,
71 72 73
      new Paint()
        ..filterQuality = FilterQuality.low
        ..isAntiAlias = false
74 75 76
    );
  }
}