+ set_err_try_fgets_delim("%%\n");
+
+ /* Check existence of config files. */
+ char * err_mod = "No map object definitions file.";
+ char * err_moa = "No map object actions file.";
+ exit_err(access(world.path_map_obj_defs, F_OK), err_mod);
+ exit_err(access(world.path_map_obj_acts, F_OK), err_moa);