+ SCM
+ irr_scene_addCustomSceneNode (SCM wrapped_scene_manager,
+ SCM proc_render,
+ SCM proc_get_bounding_box,
+ SCM proc_get_material_count,
+ SCM proc_get_material,
+ SCM rest)
+ {
+ irr::scene::ISceneManager* scene_manager = unwrap_scene_manager (wrapped_scene_manager);
+
+ SCM parent = wrap_scene_node (scene_manager->getRootSceneNode ());
+ SCM id = scm_from_int32 (-1);
+ SCM position = scm_list_3 (scm_from_double (0),
+ scm_from_double (0),
+ scm_from_double (0));
+ SCM rotation = scm_list_3 (scm_from_double (0),
+ scm_from_double (0),
+ scm_from_double (0));
+ SCM scale = scm_list_3 (scm_from_double (1),
+ scm_from_double (1),
+ scm_from_double (1));
+
+ scm_c_bind_keyword_arguments ("add-custom-scene-node!", rest, (scm_t_keyword_arguments_flags)0,
+ scm_from_utf8_keyword ("parent"), &parent,
+ scm_from_utf8_keyword ("id"), &id,
+ scm_from_utf8_keyword ("position"), &position,
+ scm_from_utf8_keyword ("rotation"), &rotation,
+ scm_from_utf8_keyword ("scale"), &scale,
+ SCM_UNDEFINED);
+
+ class CustomSceneNode : public irr::scene::ISceneNode
+ {
+ SCM scm_render;
+ SCM scm_get_bounding_box;
+ SCM scm_get_material_count;
+ SCM scm_get_material;
+
+ public:
+ CustomSceneNode (irr::scene::ISceneNode* parent,
+ irr::scene::ISceneManager* smgr,
+ irr::s32 id,
+ const irr::core::vector3df& position,
+ const irr::core::vector3df& rotation,
+ const irr::core::vector3df& scale,
+ SCM render,
+ SCM get_bounding_box,
+ SCM get_material_count,
+ SCM get_material)
+ : irr::scene::ISceneNode (parent, smgr, id, position, rotation, scale)
+ {
+ scm_render = render;
+ scm_get_bounding_box = get_bounding_box;
+ scm_get_material_count = get_material_count;
+ scm_get_material = get_material;
+ }
+
+ virtual void OnRegisterSceneNode ()
+ {
+ if (IsVisible)
+ {
+ SceneManager->registerNodeForRendering (this);
+ }
+ ISceneNode::OnRegisterSceneNode ();
+ }
+
+ virtual void render ()
+ {
+ scm_call_0 (scm_render);
+ }
+
+ virtual const irr::core::aabbox3d<irr::f32>& getBoundingBox () const
+ {
+ SCM box = scm_call_0 (scm_get_bounding_box);
+ return *(unwrap_box3d (box));
+ }
+
+ virtual irr::u32 getMaterialCount () const
+ {
+ return scm_to_uint32 (scm_call_0 (scm_get_material_count));
+ }
+
+ virtual irr::video::SMaterial& getMaterial (irr::u32 i)
+ {
+ SCM material = scm_call_1 (scm_get_material, scm_from_uint32 (i));
+ return *(unwrap_material (material));
+ }
+ };
+
+ CustomSceneNode* node =
+ new CustomSceneNode (unwrap_scene_node (parent),
+ scene_manager,
+ scm_to_int32 (id),
+ scm_to_vector3df (position),
+ scm_to_vector3df (rotation),
+ scm_to_vector3df (scale),
+ proc_render,
+ proc_get_bounding_box,
+ proc_get_material_count,
+ proc_get_material);
+ return wrap_scene_node (node);
+ }
+