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276d2b72f9
Previously, as part of Issue #2798, I fixed the Klondike Tutorial app's step4 executable to use the Flame 1.9.x `world` and `camera` built-in objects and described the new code in the Step 2 tutorial, where it first appears in the discussion. However, the Step 2 and Step 3 tutorial texts have options to execute code and those did not include the new code. Accordingly, I have cloned the relevant code into `app/lib/step2/klondike_game.dart` and `app/lib/step3/klondike_game.dart`. I have also checked that there are no `*.md` files to be updated. The `step2.md` tutorial file covers Issue #2799 AFAICS.
79 lines
2.2 KiB
Dart
79 lines
2.2 KiB
Dart
import 'dart:math';
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import 'package:flame/components.dart';
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import 'package:flame/flame.dart';
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import 'package:flame/game.dart';
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import 'components/card.dart';
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import 'components/foundation.dart';
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import 'components/pile.dart';
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import 'components/stock.dart';
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import 'components/waste.dart';
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class KlondikeGame extends FlameGame {
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static const double cardGap = 175.0;
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static const double cardWidth = 1000.0;
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static const double cardHeight = 1400.0;
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static const double cardRadius = 100.0;
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static final Vector2 cardSize = Vector2(cardWidth, cardHeight);
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@override
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Future<void> onLoad() async {
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await Flame.images.load('klondike-sprites.png');
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final stock = Stock()
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..size = cardSize
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..position = Vector2(cardGap, cardGap);
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final waste = Waste()
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..size = cardSize
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..position = Vector2(cardWidth + 2 * cardGap, cardGap);
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final foundations = List.generate(
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4,
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(i) => Foundation()
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..size = cardSize
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..position =
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Vector2((i + 3) * (cardWidth + cardGap) + cardGap, cardGap),
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);
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final piles = List.generate(
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7,
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(i) => Pile()
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..size = cardSize
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..position = Vector2(
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cardGap + i * (cardWidth + cardGap),
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cardHeight + 2 * cardGap,
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),
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);
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world.add(stock);
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world.add(waste);
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world.addAll(foundations);
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world.addAll(piles);
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camera.viewfinder.visibleGameSize =
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Vector2(cardWidth * 7 + cardGap * 8, 4 * cardHeight + 3 * cardGap);
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camera.viewfinder.position = Vector2(cardWidth * 3.5 + cardGap * 4, 0);
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camera.viewfinder.anchor = Anchor.topCenter;
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final random = Random();
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for (var i = 0; i < 7; i++) {
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for (var j = 0; j < 4; j++) {
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final card = Card(random.nextInt(13) + 1, random.nextInt(4))
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..position = Vector2(100 + i * 1150, 100 + j * 1500)
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..addToParent(world);
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// flip the card face-up with 90% probability
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if (random.nextDouble() < 0.9) {
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card.flip();
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}
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}
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}
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}
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}
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Sprite klondikeSprite(double x, double y, double width, double height) {
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return Sprite(
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Flame.images.fromCache('klondike-sprites.png'),
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srcPosition: Vector2(x, y),
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srcSize: Vector2(width, height),
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);
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}
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