add testCollisions method for manual collision checking

lib/filament_controller.dart

@@ -6,6 +6,7 @@ import 'package:flutter/widgets.dart';
 
 import 'package:flutter_filament/animations/animation_data.dart';
 import 'package:flutter_filament/entities/entity_transform_controller.dart';
+import 'package:flutter_filament/generated_bindings.dart';
 import 'package:vector_math/vector_math_64.dart';
 
 // a handle that can be safely passed back to the rendering layer to manipulate an Entity
@@ -594,16 +595,6 @@ abstract class FilamentController {
       {void Function(int entityId1, int entityId2)? callback,
       bool affectsCollingTransform = false});
 
-  ///
-  /// Make [entity] collidable, without affecting its transform.
-  ///
-  Future markNonTransformableCollidable(FilamentEntity entity);
-
-  ///
-  /// Make [entity] no longer collidable.
-  ///
-  Future unmarkNonTransformableCollidable(FilamentEntity entity);
-
   ///
   /// Creates a (renderable) entity with the specified geometry and adds to the scene.
   ///
@@ -614,4 +605,10 @@ abstract class FilamentController {
   /// Sets the parent transform of [child] to the transform of [parent].
   ///
   Future setParent(FilamentEntity child, FilamentEntity parent);
+
+  ///
+  /// Test all collidable entities against this entity to see if any have collided.
+  /// This method returns void; the relevant callback passed to [addCollisionComponent] will be fired if a collision is detected.
+  ///
+  Future testCollisions(FilamentEntity entity);
 }

lib/filament_controller_ffi.dart

@@ -1437,16 +1437,6 @@ class FilamentControllerFFI extends FilamentController {
     }
   }
 
-  @override
-  Future markNonTransformableCollidable(FilamentEntity entity) async {
-    mark_nontransformable_collidable(_sceneManager!, entity);
-  }
-
-  @override
-  Future unmarkNonTransformableCollidable(FilamentEntity entity) async {
-    unmark_nontransformable_collidable(_sceneManager!, entity);
-  }
-
   @override
   Future<FilamentEntity> createGeometry(
       List<double> vertices, List<int> indices, String? materialPath) async {
@@ -1489,4 +1479,9 @@ class FilamentControllerFFI extends FilamentController {
     }
     set_parent(_sceneManager!, child, parent);
   }
+
+  @override
+  Future testCollisions(FilamentEntity entity) async {
+    test_collisions(_sceneManager!, entity);
+  }
 }

lib/generated_bindings.dart

@@ -891,22 +891,6 @@ external void add_collision_component(
   bool affectsCollidingTransform,
 );
 
-@ffi.Native<ffi.Void Function(ffi.Pointer<ffi.Void>, EntityId)>(
-    symbol: 'mark_nontransformable_collidable',
-    assetId: 'flutter_filament_plugin')
-external void mark_nontransformable_collidable(
-  ffi.Pointer<ffi.Void> sceneManager,
-  int entityId,
-);
-
-@ffi.Native<ffi.Void Function(ffi.Pointer<ffi.Void>, EntityId)>(
-    symbol: 'unmark_nontransformable_collidable',
-    assetId: 'flutter_filament_plugin')
-external void unmark_nontransformable_collidable(
-  ffi.Pointer<ffi.Void> sceneManager,
-  int entityId,
-);
-
 @ffi.Native<
         EntityId Function(ffi.Pointer<ffi.Void>, ffi.Pointer<ffi.Float>,
             ffi.Int, ffi.Pointer<ffi.Uint16>, ffi.Int, ffi.Pointer<ffi.Char>)>(
@@ -928,6 +912,13 @@ external void set_parent(
   int parent,
 );
 
+@ffi.Native<ffi.Void Function(ffi.Pointer<ffi.Void>, EntityId)>(
+    symbol: 'test_collisions', assetId: 'flutter_filament_plugin')
+external void test_collisions(
+  ffi.Pointer<ffi.Void> sceneManager,
+  int entity,
+);
+
 @ffi.Native<
         ffi.Pointer<ffi.Void> Function(
             ffi.Pointer<ffi.Void>,