mirror of
https://github.com/flame-engine/flame.git
synced 2025-11-03 12:28:03 +08:00
692213d5a4
* Fix rendering of children * Game loop handles other restore * Properly propagate onMount and onRemove to children * Use BaseGame on gestures to minimize confusion * Fix linting * All children don't need preparation * Add composability example * gameRef might not be defined * Add mustCallSuper * isMounted on game * Remove unused gameRef argument * Made isMounted only modifiable by the component * Move dartdoc to public isMounted * Fix formatting
60 lines
1.2 KiB
Dart
60 lines
1.2 KiB
Dart
import 'package:flame/game.dart';
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import 'package:flutter/material.dart';
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import 'package:flame/gestures.dart';
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import 'package:flame/palette.dart';
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import 'package:flame/extensions/vector2.dart';
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import 'package:flame/extensions/offset.dart';
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void main() {
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runApp(
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GameWidget(
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game: MyGame(),
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),
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);
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}
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class MyGame extends BaseGame with MouseMovementDetector {
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static const SPEED = 200;
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Vector2 position = Vector2(0, 0);
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Vector2 target;
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final Paint _blue = Paint()..color = const Color(0xFF0000FF);
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bool _onTarget = false;
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@override
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void onMouseMove(event) {
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target = event.localPosition.toVector2();
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}
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Rect _toRect() => Rect.fromLTWH(
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position.x,
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position.y,
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50,
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50,
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);
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@override
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void render(Canvas canvas) {
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super.render(canvas);
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canvas.drawRect(
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_toRect(),
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_onTarget ? _blue : BasicPalette.white.paint,
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);
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}
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@override
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void update(double dt) {
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super.update(dt);
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if (target != null) {
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_onTarget = _toRect().contains(target.toOffset());
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if (!_onTarget) {
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final dir = (target - position).normalized();
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position += dir * (SPEED * dt);
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}
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}
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}
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}
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