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71f7b475e3
I was playing around with the rule avoid-global-state While I don't think we should enable it, because we do have several totally legitimate cases of what the rule considers global state, it did help me find any current cases where the things just should be final constants. So this PR will mark semantically final variables as final (or const) proper, exclusively on examples (no violations on actual src code are legit).
80 lines
1.9 KiB
Dart
80 lines
1.9 KiB
Dart
import 'dart:math';
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import 'dart:ui';
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import 'package:flame/components.dart';
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import 'package:flame/effects.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:flutter/material.dart' hide Gradient;
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class _Rectangle extends RectangleComponent {
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_Rectangle()
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: super(
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size: Vector2(200, 200),
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anchor: Anchor.center,
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paint: Paint()
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..shader = Gradient.linear(
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Offset.zero,
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const Offset(0, 100),
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[Colors.orange, Colors.blue],
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),
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children: [
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RotateEffect.by(
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pi * 2,
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EffectController(duration: .4, infinite: true),
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),
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],
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);
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}
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class ClipComponentExample extends FlameGame with TapDetector {
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static const String description =
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'Tap on the objects to increase their size.';
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@override
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Future<void> onLoad() async {
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addAll(
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[
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ClipComponent.circle(
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position: Vector2(100, 100),
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size: Vector2.all(50),
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children: [_Rectangle()],
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),
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ClipComponent.rectangle(
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position: Vector2(200, 100),
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size: Vector2.all(50),
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children: [_Rectangle()],
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),
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ClipComponent.polygon(
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points: [
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Vector2(1, 0),
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Vector2(1, 1),
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Vector2(0, 1),
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Vector2(1, 0),
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],
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position: Vector2(200, 200),
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size: Vector2.all(50),
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children: [_Rectangle()],
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),
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],
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);
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}
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@override
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void onTapUp(TapUpInfo info) {
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final position = info.eventPosition.game;
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final hit = children
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.whereType<PositionComponent>()
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.where(
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(component) => component.containsLocalPoint(
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position - component.position,
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),
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)
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.toList();
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hit.forEach((component) {
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component.size += Vector2.all(10);
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});
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}
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}
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