+ * Add a loaded tile to the 'attach to the scene graph' queue.
+ */
+ static void ready_to_attach( FGTileEntry *t ) { attach_queue.push( t ); }
+
+#ifdef WISH_PLIB_WAS_THREADED // but it isn't
+ /**
+ * Tile is detatched from scene graph and is ready to delete
+ */
+ inline void ready_to_delete( FGTileEntry *t ) { loader.remove( t ); }
+#endif
+
+ /**
+ * Add a pending model to the 'deferred model load' queue