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auxSceneData.h
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73 lines (59 loc) · 1.93 KB
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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 auxSceneData.h
* @author drose
* @date 2004-09-27
*/
#ifndef AUXSCENEDATA_H
#define AUXSCENEDATA_H
#include "pandabase.h"
#include "typedReferenceCount.h"
#include "clockObject.h"
/**
* This is a base class for a generic data structure that can be attached per-
* instance to the camera, to store per-instance data that must be preserved
* over multiple frames.
*
* In particular, this is used to implement the FadeLODNode, which must
* remember during traversal at what point it is in the fade, separately for
* each instance and for each camera.
*/
class EXPCL_PANDA_PGRAPH AuxSceneData : public TypedReferenceCount {
protected:
INLINE AuxSceneData(double duration = 0.0);
PUBLISHED:
INLINE void set_duration(double duration);
INLINE double get_duration() const;
INLINE void set_last_render_time(double render_time);
INLINE double get_last_render_time() const;
INLINE double get_expiration_time() const;
virtual void output(std::ostream &out) const;
virtual void write(std::ostream &out, int indent_level = 0) const;
protected:
double _duration;
double _last_render_time;
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
TypedReferenceCount::init_type();
register_type(_type_handle, "AuxSceneData",
TypedReferenceCount::get_class_type());
}
virtual TypeHandle get_type() const {
return get_class_type();
}
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
private:
static TypeHandle _type_handle;
};
INLINE std::ostream &operator << (std::ostream &out, const AuxSceneData &data);
#include "auxSceneData.I"
#endif