Panda3D
fltFace.cxx
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file fltFace.cxx
10  * @author drose
11  * @date 2000-08-25
12  */
13 
14 #include "fltFace.h"
15 #include "fltRecordReader.h"
16 #include "fltRecordWriter.h"
17 #include "fltHeader.h"
18 #include "fltMaterial.h"
19 
20 TypeHandle FltFace::_type_handle;
21 
22 /**
23  *
24  */
25 FltFace::
26 FltFace(FltHeader *header) : FltGeometry(header) {
27 }
28 
29 /**
30  * Fills in the information in this bead based on the information given in the
31  * indicated datagram, whose opcode has already been read. Returns true on
32  * success, false if the datagram is invalid.
33  */
34 bool FltFace::
35 extract_record(FltRecordReader &reader) {
36  if (!FltBeadID::extract_record(reader)) {
37  return false;
38  }
39  if (!FltGeometry::extract_record(reader)) {
40  return false;
41  }
42 
43  nassertr(reader.get_opcode() == FO_face, false);
44 
45  DatagramIterator &iterator = reader.get_iterator();
46  check_remaining_size(iterator);
47  return true;
48 }
49 
50 /**
51  * Fills up the current record on the FltRecordWriter with data for this
52  * record, but does not advance the writer. Returns true on success, false if
53  * there is some error.
54  */
55 bool FltFace::
56 build_record(FltRecordWriter &writer) const {
57  if (!FltBeadID::build_record(writer)) {
58  return false;
59  }
60  if (!FltGeometry::build_record(writer)) {
61  return false;
62  }
63 
64  writer.set_opcode(FO_face);
65 
66  return true;
67 }
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
This class writes a sequence of FltRecords to an ostream, handling opcode and size counts properly.
This class turns an istream into a sequence of FltRecords by reading a sequence of Datagrams and extr...
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void check_remaining_size(const DatagramIterator &di, const std::string &name=std::string()) const
Checks that the iterator has no bytes left, as it should at the end of a successfully read record.
Definition: fltRecord.cxx:254
DatagramIterator & get_iterator()
Returns an iterator suitable for extracting data from the current record.
This is a base class for both FltFace and FltMesh, which are two different kinds of geometric primiti...
Definition: fltGeometry.h:33
This is the first bead in the file, the top of the bead hierarchy, and the primary interface to readi...
Definition: fltHeader.h:44
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
FltOpcode get_opcode() const
Returns the opcode associated with the current record.
A class to retrieve the individual data elements previously stored in a Datagram.
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
void set_opcode(FltOpcode opcode)
Sets the opcode associated with the current record.