Panda3D
|
00001 // Filename: fltInstanceDefinition.h 00002 // Created by: drose (30Aug00) 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 FLTINSTANCEDEFINITION_H 00016 #define FLTINSTANCEDEFINITION_H 00017 00018 #include "pandatoolbase.h" 00019 00020 #include "fltBead.h" 00021 00022 //////////////////////////////////////////////////////////////////// 00023 // Class : FltInstanceDefinition 00024 // Description : This special kind of record marks the top node of an 00025 // instance subtree. This subtree lives outside of the 00026 // normal hierarchy, and is MultiGen's way of supporting 00027 // instancing--each instance subtree has a unique index, 00028 // which may be referenced in a FltInstanceRef object to 00029 // make the instance appear in various places in the 00030 // hierarchy. 00031 //////////////////////////////////////////////////////////////////// 00032 class FltInstanceDefinition : public FltBead { 00033 public: 00034 FltInstanceDefinition(FltHeader *header); 00035 00036 int _instance_index; 00037 00038 protected: 00039 virtual bool extract_record(FltRecordReader &reader); 00040 virtual bool build_record(FltRecordWriter &writer) const; 00041 00042 public: 00043 virtual TypeHandle get_type() const { 00044 return get_class_type(); 00045 } 00046 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00047 static TypeHandle get_class_type() { 00048 return _type_handle; 00049 } 00050 static void init_type() { 00051 FltBead::init_type(); 00052 register_type(_type_handle, "FltInstanceDefinition", 00053 FltBead::get_class_type()); 00054 } 00055 00056 private: 00057 static TypeHandle _type_handle; 00058 00059 friend class FltInstanceRef; 00060 friend class FltRecordWriter; 00061 }; 00062 00063 #endif 00064 00065