Panda3D
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00001 // Filename: auxSceneData.h 00002 // Created by: drose (27Sep04) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef AUXSCENEDATA_H 00016 #define AUXSCENEDATA_H 00017 00018 #include "pandabase.h" 00019 00020 #include "typedReferenceCount.h" 00021 #include "clockObject.h" 00022 00023 //////////////////////////////////////////////////////////////////// 00024 // Class : AuxSceneData 00025 // Description : This is a base class for a generic data structure 00026 // that can be attached per-instance to the camera, to 00027 // store per-instance data that must be preserved over 00028 // multiple frames. 00029 // 00030 // In particular, this is used to implement the 00031 // FadeLODNode, which must remember during traversal at 00032 // what point it is in the fade, separately for each 00033 // instance and for each camera. 00034 //////////////////////////////////////////////////////////////////// 00035 class EXPCL_PANDA_PGRAPH AuxSceneData : public TypedReferenceCount { 00036 protected: 00037 INLINE AuxSceneData(double duration = 0.0); 00038 00039 PUBLISHED: 00040 INLINE void set_duration(double duration); 00041 INLINE double get_duration() const; 00042 00043 INLINE void set_last_render_time(double render_time); 00044 INLINE double get_last_render_time() const; 00045 00046 INLINE double get_expiration_time() const; 00047 00048 virtual void output(ostream &out) const; 00049 virtual void write(ostream &out, int indent_level = 0) const; 00050 00051 protected: 00052 double _duration; 00053 double _last_render_time; 00054 00055 public: 00056 static TypeHandle get_class_type() { 00057 return _type_handle; 00058 } 00059 static void init_type() { 00060 TypedReferenceCount::init_type(); 00061 register_type(_type_handle, "AuxSceneData", 00062 TypedReferenceCount::get_class_type()); 00063 } 00064 virtual TypeHandle get_type() const { 00065 return get_class_type(); 00066 } 00067 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00068 00069 private: 00070 static TypeHandle _type_handle; 00071 }; 00072 00073 INLINE ostream &operator << (ostream &out, const AuxSceneData &data); 00074 00075 #include "auxSceneData.I" 00076 00077 #endif