Panda3D
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00001 // Filename: audioVolumeAttrib.h 00002 // Created by: darren (15Dec06) 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 AUDIOVOLUMEATTRIB_H 00016 #define AUDIOVOLUMEATTRIB_H 00017 00018 #include "pandabase.h" 00019 00020 #include "renderAttrib.h" 00021 #include "luse.h" 00022 00023 class FactoryParams; 00024 00025 //////////////////////////////////////////////////////////////////// 00026 // Class : AudioVolumeAttrib 00027 // Description : Applies a scale to audio volume for positional sounds 00028 // in the scene graph. 00029 //////////////////////////////////////////////////////////////////// 00030 class EXPCL_PANDA_PGRAPH AudioVolumeAttrib : public RenderAttrib { 00031 protected: 00032 AudioVolumeAttrib(bool off, float volume); 00033 INLINE AudioVolumeAttrib(const AudioVolumeAttrib ©); 00034 00035 PUBLISHED: 00036 static CPT(RenderAttrib) make_identity(); 00037 static CPT(RenderAttrib) make(float volume); 00038 static CPT(RenderAttrib) make_off(); 00039 static CPT(RenderAttrib) make_default(); 00040 00041 INLINE bool is_off() const; 00042 INLINE bool has_volume() const; 00043 INLINE float get_volume() const; 00044 CPT(RenderAttrib) set_volume(float volume) const; 00045 00046 public: 00047 virtual void output(ostream &out) const; 00048 00049 protected: 00050 virtual int compare_to_impl(const RenderAttrib *other) const; 00051 virtual CPT(RenderAttrib) compose_impl(const RenderAttrib *other) const; 00052 virtual CPT(RenderAttrib) invert_compose_impl(const RenderAttrib *other) const; 00053 00054 private: 00055 bool _off; 00056 bool _has_volume; 00057 float _volume; 00058 static CPT(RenderAttrib) _identity_attrib; 00059 00060 PUBLISHED: 00061 static int get_class_slot() { 00062 return _attrib_slot; 00063 } 00064 virtual int get_slot() const { 00065 return get_class_slot(); 00066 } 00067 00068 public: 00069 static void register_with_read_factory(); 00070 virtual void write_datagram(BamWriter *manager, Datagram &dg); 00071 00072 protected: 00073 static TypedWritable *make_from_bam(const FactoryParams ¶ms); 00074 void fillin(DatagramIterator &scan, BamReader *manager); 00075 00076 public: 00077 static TypeHandle get_class_type() { 00078 return _type_handle; 00079 } 00080 static void init_type() { 00081 RenderAttrib::init_type(); 00082 register_type(_type_handle, "AudioVolumeAttrib", 00083 RenderAttrib::get_class_type()); 00084 _attrib_slot = register_slot(_type_handle, 100, make_default); 00085 } 00086 virtual TypeHandle get_type() const { 00087 return get_class_type(); 00088 } 00089 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00090 00091 private: 00092 static TypeHandle _type_handle; 00093 static int _attrib_slot; 00094 }; 00095 00096 #include "audioVolumeAttrib.I" 00097 00098 #endif 00099