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GameWidget previously blocked all pointer events from reaching Flutter widgets behind it, even when transparent and without input handling. - Replace ColoredBox with DecoratedBox to avoid opaque hit testing - Set MouseRegion opaque to false since it only tracks cursor changes - Change RawGestureDetector to HitTestBehavior.deferToChild so it only intercepts events when a game component reports a hit - Add GameRenderBox.hitTestSelf that delegates to Game - Add Game.containsEventHandlerAt with FlameGame override that checks componentsAtPoint for event callback mixins (TapCallbacks, etc.) Events now pass through empty game space to widgets behind the GameWidget, while still being intercepted by game components that have event handling mixins.
…ivery The hit test in containsEventHandlerAt now caches the full tree traversal so the immediate event delivery can replay it, reducing redundant componentsAtPoint calls from 3 to 2 per tap.
…ivery The hit test in containsEventHandlerAt now caches the full tree traversal so the immediate event delivery can replay it, reducing redundant componentsAtPoint calls from 3 to 2 per tap. Uses a position-keyed map to support concurrent multitouch correctly. # Conflicts: # packages/flame/lib/src/game/flame_game.dart
Benchmarking showed the cache added complexity without measurable performance benefit. containsEventHandlerAt now simply uses super.componentsAtPoint to check for event handlers at a position.
Adds HitTestBehavior parameter (default opaque) so users can opt into event passthrough with deferToChild or translucent. Includes tests for all three behaviors.
wolfenrain
reviewed
Feb 20, 2026
wolfenrain
approved these changes
Feb 20, 2026
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Description
This adds the ability for Flutter widgets to receive events when they are underneath a
GameWidget, for example in aStack.Checklist
docsand added dartdoc comments with///.examplesordocs.Breaking Change?
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