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https://github.com/flame-engine/flame.git
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b283b82f6c
Replaces the switch cases that can be replaces with switch expressions and removes `break;` where it isn't needed. https://dart.dev/language/branches#switch-statements
63 lines
1.6 KiB
Dart
63 lines
1.6 KiB
Dart
import 'package:examples/commons/ember.dart';
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import 'package:flame/components.dart';
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import 'package:flame/events.dart';
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import 'package:flame/experimental.dart';
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import 'package:flame/extensions.dart';
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import 'package:flame/game.dart';
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import 'package:flame/input.dart';
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import 'package:flame/math.dart';
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class SpawnComponentExample extends FlameGame with TapDetector {
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static const String description =
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'Tap on the screen to start spawning Embers within different shapes.';
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SpawnComponentExample() : super(world: SpawnComponentWorld());
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}
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class SpawnComponentWorld extends World with TapCallbacks {
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@override
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void onTapDown(TapDownEvent info) {
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final shapeType = Shapes.values.random();
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final position = info.localPosition;
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final shape = switch (shapeType) {
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Shapes.rectangle => Rectangle.fromCenter(
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center: position,
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size: Vector2.all(200),
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),
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Shapes.circle => Circle(position, 150),
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Shapes.polygon => Polygon(
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[
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Vector2(-1.0, 0.0),
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Vector2(-0.8, 0.6),
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Vector2(0.0, 1.0),
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Vector2(0.6, 0.9),
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Vector2(1.0, 0.0),
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Vector2(0.3, -0.2),
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Vector2(0.0, -1.0),
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Vector2(-0.8, -0.5),
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].map((vertex) {
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return vertex
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..scale(200)
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..add(position);
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}).toList(),
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),
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};
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add(
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SpawnComponent(
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factory: (_) => Ember(),
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period: 0.5,
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area: shape,
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within: randomFallback.nextBool(),
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),
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);
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}
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}
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enum Shapes {
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rectangle,
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circle,
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polygon,
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}
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