From 72cc9b932a15c1ddb359e332dc983ad220559686 Mon Sep 17 00:00:00 2001
From: Nick Fisher <nick.fisher@avinium.com>
Date: Thu, 26 Jun 2025 22:11:36 +0800
Subject: [PATCH] add containsChild method to ThermionAsset

---
 .../lib/src/filament/src/implementation/ffi_asset.dart   | 9 +++++++++
 thermion_dart/lib/src/filament/src/interface/asset.dart  | 8 +++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/thermion_dart/lib/src/filament/src/implementation/ffi_asset.dart b/thermion_dart/lib/src/filament/src/implementation/ffi_asset.dart
index ff1cc6c7..dbcced83 100644
--- a/thermion_dart/lib/src/filament/src/implementation/ffi_asset.dart
+++ b/thermion_dart/lib/src/filament/src/implementation/ffi_asset.dart
@@ -9,6 +9,7 @@ import 'package:thermion_dart/thermion_dart.dart';
 import 'package:vector_math/vector_math_64.dart' as v64;
 
 class FFIAsset extends ThermionAsset {
+  
   T getHandle<T>() {
     return asset as T;
   }
@@ -934,4 +935,12 @@ class FFIAsset extends ThermionAsset {
   Future<int> getPrimitiveCount({ThermionEntity? entity}) async {
     return FilamentApp.instance!.getPrimitiveCount(entity ??= this.entity);
   }
+  
+  ///
+  ///
+  ///
+  @override
+  Future<bool> containsChild(ThermionEntity entity) async {
+    return (await getChildEntities()).contains(entity);
+  }
 }
diff --git a/thermion_dart/lib/src/filament/src/interface/asset.dart b/thermion_dart/lib/src/filament/src/interface/asset.dart
index 596109a2..7e8f05a6 100644
--- a/thermion_dart/lib/src/filament/src/interface/asset.dart
+++ b/thermion_dart/lib/src/filament/src/interface/asset.dart
@@ -21,7 +21,6 @@ export 'geometry.dart';
 ///
 ///
 abstract class ThermionAsset {
-
   ///
   ///
   ///
@@ -39,6 +38,13 @@ abstract class ThermionAsset {
   ///
   Future<List<ThermionEntity>> getChildEntities();
 
+  ///
+  ///
+  ///
+  Future<bool> containsChild(ThermionEntity entity) {
+    throw UnimplementedError();
+  }
+
   ///
   ///
   ///