Interactive Resource Loader. Interactive Resource Loader. This object is returned by ResourceLoader when performing an interactive load. It allows to load with high granularity, so this is mainly useful for displaying load bars/percentages. Returns the loaded resource (only if loaded). Otherwise, returns null. Returns the load stage. The total amount of stages can be queried with [method get_stage_count] Returns the total amount of stages (calls to [method poll]) needed to completely load this resource. Poll the load. If OK is returned, this means poll will have to be called again. If ERR_FILE_EOF is returned, them the load has finished and the resource can be obtained by calling [method get_resource].