Panda3D
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auxSceneData.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 auxSceneData.h
10 * @author drose
11 * @date 2004-09-27
12 */
13
14#ifndef AUXSCENEDATA_H
15#define AUXSCENEDATA_H
16
17#include "pandabase.h"
18
19#include "typedReferenceCount.h"
20#include "clockObject.h"
21
22/**
23 * This is a base class for a generic data structure that can be attached per-
24 * instance to the camera, to store per-instance data that must be preserved
25 * over multiple frames.
26 *
27 * In particular, this is used to implement the FadeLODNode, which must
28 * remember during traversal at what point it is in the fade, separately for
29 * each instance and for each camera.
30 */
31class EXPCL_PANDA_PGRAPH AuxSceneData : public TypedReferenceCount {
32protected:
33 INLINE AuxSceneData(double duration = 0.0);
34
35PUBLISHED:
36 INLINE void set_duration(double duration);
37 INLINE double get_duration() const;
38
39 INLINE void set_last_render_time(double render_time);
40 INLINE double get_last_render_time() const;
41
42 INLINE double get_expiration_time() const;
43
44 virtual void output(std::ostream &out) const;
45 virtual void write(std::ostream &out, int indent_level = 0) const;
46
47protected:
48 double _duration;
49 double _last_render_time;
50
51public:
52 static TypeHandle get_class_type() {
53 return _type_handle;
54 }
55 static void init_type() {
56 TypedReferenceCount::init_type();
57 register_type(_type_handle, "AuxSceneData",
58 TypedReferenceCount::get_class_type());
59 }
60 virtual TypeHandle get_type() const {
61 return get_class_type();
62 }
63 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
64
65private:
66 static TypeHandle _type_handle;
67};
68
69INLINE std::ostream &operator << (std::ostream &out, const AuxSceneData &data);
70
71#include "auxSceneData.I"
72
73#endif
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
This is a base class for a generic data structure that can be attached per- instance to the camera,...
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
A base class for things which need to inherit from both TypedObject and from ReferenceCount.
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(),...
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.