Panda3D
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fltInstanceDefinition.h
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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 fltInstanceDefinition.h
10 * @author drose
11 * @date 2000-08-30
12 */
13
14#ifndef FLTINSTANCEDEFINITION_H
15#define FLTINSTANCEDEFINITION_H
16
17#include "pandatoolbase.h"
18
19#include "fltBead.h"
20
21/**
22 * This special kind of record marks the top node of an instance subtree.
23 * This subtree lives outside of the normal hierarchy, and is MultiGen's way
24 * of supporting instancing--each instance subtree has a unique index, which
25 * may be referenced in a FltInstanceRef object to make the instance appear in
26 * various places in the hierarchy.
27 */
29public:
31
32 int _instance_index;
33
34protected:
35 virtual bool extract_record(FltRecordReader &reader);
36 virtual bool build_record(FltRecordWriter &writer) const;
37
38public:
39 virtual TypeHandle get_type() const {
40 return get_class_type();
41 }
42 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
43 static TypeHandle get_class_type() {
44 return _type_handle;
45 }
46 static void init_type() {
47 FltBead::init_type();
48 register_type(_type_handle, "FltInstanceDefinition",
49 FltBead::get_class_type());
50 }
51
52private:
53 static TypeHandle _type_handle;
54
55 friend class FltInstanceRef;
56 friend class FltRecordWriter;
57};
58
59#endif
A base class for any of a broad family of flt records that represent particular beads in the hierarch...
Definition fltBead.h:29
This is the first bead in the file, the top of the bead hierarchy, and the primary interface to readi...
Definition fltHeader.h:44
This special kind of record marks the top node of an instance subtree.
This bead appears in the hierarchy to refer to a FltInstanceDefinition node defined elsewhere.
This class turns an istream into a sequence of FltRecords by reading a sequence of Datagrams and extr...
This class writes a sequence of FltRecords to an ostream, handling opcode and size counts properly.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...