Physics3D: Ensure RigidBody are destroyed on world destruction

include/Nazara/Physics3D/Components/RigidBody3DComponent.hpp

@@ -14,6 +14,8 @@ namespace Nz
 {
 	class NAZARA_PHYSICS3D_API RigidBody3DComponent : public RigidBody3D
 	{
+		friend class Physics3DSystem;
+
 		public:
 			using RigidBody3D::RigidBody3D;
 			RigidBody3DComponent(const RigidBody3DComponent&) = default;

include/Nazara/Physics3D/RigidBody3D.hpp

@@ -77,6 +77,9 @@ namespace Nz
 			RigidBody3D& operator=(const RigidBody3D& object);
 			RigidBody3D& operator=(RigidBody3D&& object) noexcept;
 
+		protected:
+			void Destroy();
+
 		private:
 			void UpdateBody(const Matrix4f& transformMatrix);
 			static void ForceAndTorqueCallback(const NewtonBody* body, float timeStep, int threadIndex);

include/Nazara/Physics3D/Systems/Physics3DSystem.hpp

@@ -35,6 +35,7 @@ namespace Nz
 		private:
 			static void OnConstruct(entt::registry& registry, entt::entity entity);
 
+			entt::registry& m_registry;
 			entt::connection m_constructConnection;
 			PhysWorld3D m_physWorld;
 	};