73 lines
1.9 KiB
C++
73 lines
1.9 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 auxSceneData.h
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* @author drose
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* @date 2004-09-27
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*/
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#ifndef AUXSCENEDATA_H
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#define AUXSCENEDATA_H
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#include "pandabase.h"
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#include "typedReferenceCount.h"
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#include "clockObject.h"
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/**
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* This is a base class for a generic data structure that can be attached per-
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* instance to the camera, to store per-instance data that must be preserved
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* over multiple frames.
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*
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* In particular, this is used to implement the FadeLODNode, which must
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* remember during traversal at what point it is in the fade, separately for
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* each instance and for each camera.
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*/
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class EXPCL_PANDA_PGRAPH AuxSceneData : public TypedReferenceCount {
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protected:
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INLINE AuxSceneData(double duration = 0.0);
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PUBLISHED:
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INLINE void set_duration(double duration);
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INLINE double get_duration() const;
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INLINE void set_last_render_time(double render_time);
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INLINE double get_last_render_time() const;
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INLINE double get_expiration_time() const;
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virtual void output(std::ostream &out) const;
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virtual void write(std::ostream &out, int indent_level = 0) const;
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protected:
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double _duration;
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double _last_render_time;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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TypedReferenceCount::init_type();
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register_type(_type_handle, "AuxSceneData",
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TypedReferenceCount::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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INLINE std::ostream &operator << (std::ostream &out, const AuxSceneData &data);
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#include "auxSceneData.I"
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#endif
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