89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file fltGroup.cxx
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* @author drose
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* @date 2000-08-24
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*/
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#include "fltGroup.h"
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#include "fltRecordReader.h"
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#include "fltRecordWriter.h"
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#include "fltHeader.h"
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TypeHandle FltGroup::_type_handle;
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/**
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*
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*/
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FltGroup::
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FltGroup(FltHeader *header) : FltBeadID(header) {
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_relative_priority = 0;
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_flags = 0;
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_special_id1 = 0;
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_special_id2 = 0;
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_significance = 0;
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_layer_id = 0;
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}
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/**
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* Fills in the information in this bead based on the information given in the
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* indicated datagram, whose opcode has already been read. Returns true on
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* success, false if the datagram is invalid.
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*/
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bool FltGroup::
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extract_record(FltRecordReader &reader) {
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if (!FltBeadID::extract_record(reader)) {
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return false;
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}
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nassertr(reader.get_opcode() == FO_group, false);
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DatagramIterator &iterator = reader.get_iterator();
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_relative_priority = iterator.get_be_int16();
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iterator.skip_bytes(2);
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_flags = iterator.get_be_uint32();
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_special_id1 = iterator.get_be_int16();
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_special_id2 = iterator.get_be_int16();
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_significance = iterator.get_be_int16();
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_layer_id = iterator.get_int8();
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iterator.skip_bytes(1);
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if (_header->get_flt_version() >= 1420) {
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iterator.skip_bytes(4);
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}
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check_remaining_size(iterator);
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return true;
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}
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/**
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* Fills up the current record on the FltRecordWriter with data for this
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* record, but does not advance the writer. Returns true on success, false if
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* there is some error.
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*/
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bool FltGroup::
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build_record(FltRecordWriter &writer) const {
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if (!FltBeadID::build_record(writer)) {
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return false;
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}
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writer.set_opcode(FO_group);
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Datagram &datagram = writer.update_datagram();
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datagram.add_be_int16(_relative_priority);
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datagram.pad_bytes(2);
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datagram.add_be_uint32(_flags);
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datagram.add_be_int16(_special_id1);
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datagram.add_be_int16(_special_id2);
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datagram.add_be_int16(_significance);
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datagram.add_int8(_layer_id);
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datagram.pad_bytes(5);
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return true;
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}
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