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 loading bars/percentages.
Returns [constant OK] if the poll is successful but the load operation has not finished yet (intermediate stage). This means [method poll] will have to be called again until the last stage is completed.
Returns [constant ERR_FILE_EOF] if the load operation has completed successfully. The loaded resource can be obtained by calling [method get_resource].
Returns another [enum Error] code if the poll has failed.
Returns [constant ERR_FILE_EOF] if the load operation has completed successfully. The loaded resource can be obtained by calling [method get_resource].
Returns another [enum Error] code if a poll has failed, aborting the operation.