Panda3D
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00001 // Filename: animChannelFixed.h 00002 // Created by: drose (24Feb99) 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 ANIMCHANNELFIXED_H 00016 #define ANIMCHANNELFIXED_H 00017 00018 #include "pandabase.h" 00019 00020 #include "animChannel.h" 00021 00022 00023 //////////////////////////////////////////////////////////////////// 00024 // Class : AnimChannelFixed 00025 // Description : This template class is a special kind of AnimChannel 00026 // that always returns just one fixed value. It is a 00027 // special channel, in that it need not be assigned 00028 // within a hierarchy. It may stand alone, so that it 00029 // may be created on-the-fly for parts that need default 00030 // anims to bind against. 00031 //////////////////////////////////////////////////////////////////// 00032 template<class SwitchType> 00033 class AnimChannelFixed : public AnimChannel<SwitchType> { 00034 public: 00035 typedef TYPENAME AnimChannel<SwitchType>::ValueType ValueType; 00036 00037 protected: 00038 INLINE AnimChannelFixed(AnimGroup *parent, const AnimChannelFixed<SwitchType> ©); 00039 00040 public: 00041 INLINE AnimChannelFixed(const string &name, const ValueType &value); 00042 00043 virtual bool has_changed(int last_frame, double last_frac, 00044 int this_frame, double this_frac); 00045 virtual void get_value(int frame, ValueType &value); 00046 00047 virtual void output(ostream &out) const; 00048 00049 ValueType _value; 00050 00051 public: 00052 virtual TypeHandle get_type() const { 00053 return get_class_type(); 00054 } 00055 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00056 static TypeHandle get_class_type() { 00057 return _type_handle; 00058 } 00059 static void init_type() { 00060 AnimChannel<SwitchType>::init_type(); 00061 register_type(_type_handle, SwitchType::get_fixed_channel_type_name(), 00062 AnimChannel<SwitchType>::get_class_type()); 00063 } 00064 00065 private: 00066 static TypeHandle _type_handle; 00067 }; 00068 00069 00070 #include "animChannelFixed.I" 00071 00072 #endif