fltVectorRecord.cxx

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/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file fltVectorRecord.cxx
 * @author drose
 * @date 2002-08-30
 */

#include "fltVectorRecord.h"
#include "fltRecordReader.h"
#include "fltRecordWriter.h"

TypeHandle FltVectorRecord::_type_handle;

/**
 *
 */
FltVectorRecord::
FltVectorRecord(FltHeader *header) : FltRecord(header) {
  _vector.set(0.0f, 0.0f, 0.0f);
}

/**
 * Returns the vector value.
 */
const LVector3 &FltVectorRecord::
get_vector() const {
  return _vector;
}

/**
 * Fills in the information in this record based on the information given in
 * the indicated datagram, whose opcode has already been read.  Returns true
 * on success, false if the datagram is invalid.
 */
bool FltVectorRecord::
extract_record(FltRecordReader &reader) {
  if (!FltRecord::extract_record(reader)) {
    return false;
  }

  nassertr(reader.get_opcode() == FO_vector, false);
  DatagramIterator &iterator = reader.get_iterator();

  _vector[0] = iterator.get_be_float32();
  _vector[1] = iterator.get_be_float32();
  _vector[2] = iterator.get_be_float32();

  check_remaining_size(iterator);
  return true;
}

/**
 * Fills up the current record on the FltRecordWriter with data for this
 * record, but does not advance the writer.  Returns true on success, false if
 * there is some error.
 */
bool FltVectorRecord::
build_record(FltRecordWriter &writer) const {
  if (!FltRecord::build_record(writer)) {
    return false;
  }

  writer.set_opcode(FO_vector);
  Datagram &datagram = writer.update_datagram();

  datagram.add_be_float32(_vector[0]);
  datagram.add_be_float32(_vector[1]);
  datagram.add_be_float32(_vector[2]);

  return true;
}