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The code matrix.scale(-1, 1); works in Chrome, but it throws an error on macOS. #3421

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shingo-nakanishi opened this issue Dec 21, 2024 · 3 comments
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The code matrix.scale(-1, 1); works in Chrome, but it throws an error on macOS. #3421

shingo-nakanishi opened this issue Dec 21, 2024 · 3 comments
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bug

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@shingo-nakanishi
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What happened?

The code matrix.scale(-1, 1); works in Chrome, but it throws an error on macOS.

What do you expect?

No error.

How can we reproduce this?

import 'package:flame/components.dart';
import 'package:flame/events.dart';
import 'package:flame/game.dart';
import 'dart:ui';

class CardFlipGame extends FlameGame {
  @override
  Future<void> onLoad() async {
    final frontSprite = await loadSprite('card_front.png');
    final backSprite = await loadSprite('card_back.png');

    add(CardPositionComponent(
      position: Vector2(size.x / 2 - 50, size.y / 2 - 75),
      size: Vector2.all(128),
      frontSprite: frontSprite,
      backSprite: backSprite,
    ));
  }
}

class CardPositionComponent extends PositionComponent with TapCallbacks {
  final Sprite frontSprite;
  final Sprite backSprite;

  CardPositionComponent({
    required super.position,
    required super.size,
    required this.frontSprite,
    required this.backSprite,
  });

  @override
  void render(Canvas canvas) {
    super.render(canvas);

    final matrix = Matrix4.identity();
    matrix.scale(-1, 1);
  }
}

What steps should take to fix this?

No response

Do have an example of where the bug occurs?

No response

Relevant log output

══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════
The following UnimplementedError was thrown during paint():
UnimplementedError

The relevant error-causing widget was:
  RenderGameWidget
  RenderGameWidget:file:///user-name/.pub-cache/hosted/pub.dev/flame-1.18.0/lib/src/game/game_widget/game_widget.dart:333:36

When the exception was thrown, this was the stack:
#0      Matrix4.scale (package:vector_math/src/vector_math_64/matrix4.dart:886:7)
#1      CardPositionComponent.render (package:flame_cookbook/card_flip_game/card_flip_game.dart:37:12)
#2      Component.renderTree (package:flame/src/components/core/component.dart:524:5)
#3      Transform2DDecorator.apply (package:flame/src/rendering/transform2d_decorator.dart:21:9)
#4      Decorator.applyChain (package:flame/src/rendering/decorator.dart:38:5)
#5      PositionComponent.renderTree (package:flame/src/components/position_component.dart:467:15)
#6      FlameGame.renderTree (package:flame/src/game/flame_game.dart:144:17)
#7      FlameGame.render (package:flame/src/game/flame_game.dart:134:7)
#8      GameRenderBox.paint (package:flame/src/game/game_render_box.dart:129:10)
#9      RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#10     PaintingContext._repaintCompositedChild (package:flutter/src/rendering/object.dart:166:11)
#11     PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:109:5)
#12     PaintingContext._compositeChild (package:flutter/src/rendering/object.dart:261:7)
#13     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:242:7)
#14     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#15     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#16     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#17     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#18     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#19     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#20     RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:3158:15)
#21     RenderStack.paintStack (package:flutter/src/rendering/stack.dart:633:5)
#22     RenderStack.paint (package:flutter/src/rendering/stack.dart:649:7)
#23     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#24     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#25     _RenderLayoutBuilder.paint (package:flutter/src/widgets/layout_builder.dart:356:15)
#26     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#27     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#28     _RenderColoredBox.paint (package:flutter/src/widgets/basic.dart:7826:15)
#29     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#30     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#31     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#32     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#33     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#34     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#35     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#36     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#37     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#38     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#39     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#40     RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:3158:15)
#41     RenderStack.paintStack (package:flutter/src/rendering/stack.dart:633:5)
#42     RenderStack.paint (package:flutter/src/rendering/stack.dart:649:7)
#43     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#44     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#45     RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:3158:15)
#46     RenderFlex.paint (package:flutter/src/rendering/flex.dart:1014:7)
#47     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#48     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#49     RenderShiftedBox.paint (package:flutter/src/rendering/shifted_box.dart:74:15)
#50     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#51     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#52     RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:3158:15)
#53     RenderCustomMultiChildLayoutBox.paint (package:flutter/src/rendering/custom_layout.dart:409:5)
#54     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#55     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#56     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#57     _RenderInkFeatures.paint (package:flutter/src/material/material.dart:662:11)
#58     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#59     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#60     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#61     RenderPhysicalModel.paint.<anonymous closure> (package:flutter/src/rendering/proxy_box.dart:2033:15)
#62     PaintingContext.pushClipRRect (package:flutter/src/rendering/object.dart:575:14)
#63     RenderPhysicalModel.paint (package:flutter/src/rendering/proxy_box.dart:2020:21)
#64     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#65     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#66     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#67     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#68     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:250:13)
#69     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:130:13)
#70     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3239:7)
#71     PaintingContext._repaintCompositedChild (package:flutter/src/rendering/object.dart:166:11)
#72     PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:109:5)
#73     PipelineOwner.flushPaint (package:flutter/src/rendering/object.dart:1182:31)
#74     PipelineOwner.flushPaint (package:flutter/src/rendering/object.dart:1192:15)
#75     RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:579:23)
#76     WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:1138:13)
#77     RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:443:5)
#78     SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1392:15)
#79     SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1313:9)
#80     SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1171:5)
#81     _invoke (dart:ui/hooks.dart:312:13)
#82     PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:419:5)
#83     _drawFrame (dart:ui/hooks.dart:283:31)

The following RenderObject was being processed when the exception was fired: GameRenderBox#a77b6:
  needs compositing
  creator: RenderGameWidget ← Listener ← _GestureSemantics ← RawGestureDetector ← Stack ←
    FutureBuilder<void> ← LayoutBuilder ← ColoredBox ← Directionality ← MouseRegion ← Semantics ←
    _FocusInheritedScope ← ⋯
  parentData: <none> (can use size)
  constraints: BoxConstraints(0.0<=w<=1248.0, 0.0<=h<=600.0)
  layer: OffsetLayer#018ce DETACHED
  size: Size(1248.0, 600.0)
This RenderObject has no descendants.
════════════════════════════════════════════════════════════════════════════════════════════════════

Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError
Another exception was thrown: UnimplementedError


### Execute in a terminal and put output into the code block below

Output of: flutter doctor -v

### Affected platforms

macOS

### Other information

_No response_

### Are you interested in working on a PR for this?

- [ ] I want to work on this
@shingo-nakanishi
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It seems like this might be a bug in the https://github.com/google/vector_math.dart library.

@shingo-nakanishi shingo-nakanishi mentioned this issue Dec 21, 2024
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@shingo-nakanishi
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I was able to reproduce it without Flame, so I posted it.

google/vector_math.dart#338

@spydon
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spydon commented Dec 21, 2024

I was able to reproduce it without Flame, so I posted it.

google/vector_math.dart#338

Closing this since it's an unimplemented feature on vector_math, so it can be tracked on the issue you opened there. :)

@spydon spydon closed this as completed Dec 21, 2024
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@spydon @shingo-nakanishi