Panda3D
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00001 // Filename: forceNode.h 00002 // Created by: charles (02Aug00) 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 FORCENODE_H 00016 #define FORCENODE_H 00017 00018 #include "pandaNode.h" 00019 #include "pvector.h" 00020 00021 #include "baseForce.h" 00022 00023 //////////////////////////////////////////////////////////////////// 00024 // Class : ForceNode 00025 // Description : A force that lives in the scene graph and is 00026 // therefore subject to local coordinate systems. 00027 // An example of this would be simulating gravity 00028 // in a rotating space station. or something. 00029 //////////////////////////////////////////////////////////////////// 00030 class EXPCL_PANDAPHYSICS ForceNode : public PandaNode { 00031 PUBLISHED: 00032 ForceNode(const string &name); 00033 INLINE void clear(); 00034 INLINE BaseForce *get_force(int index) const; 00035 INLINE int get_num_forces() const; 00036 MAKE_SEQ(get_forces, get_num_forces, get_force); 00037 INLINE void add_force(BaseForce *force); 00038 00039 void add_forces_from(const ForceNode &other); 00040 void remove_force(BaseForce *f); 00041 void remove_force(int index); 00042 00043 virtual void output(ostream &out) const; 00044 virtual void write_forces(ostream &out, unsigned int indent=0) const; 00045 virtual void write(ostream &out, unsigned int indent=0) const; 00046 00047 public: 00048 virtual ~ForceNode(); 00049 virtual bool safe_to_flatten() const { return false; } 00050 virtual PandaNode *make_copy() const; 00051 00052 protected: 00053 ForceNode(const ForceNode ©); 00054 00055 private: 00056 typedef pvector< PT(BaseForce) > ForceVector; 00057 ForceVector _forces; 00058 00059 public: 00060 static TypeHandle get_class_type() { 00061 return _type_handle; 00062 } 00063 static void init_type() { 00064 PandaNode::init_type(); 00065 register_type(_type_handle, "ForceNode", 00066 PandaNode::get_class_type()); 00067 } 00068 virtual TypeHandle get_type() const { 00069 return get_class_type(); 00070 } 00071 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00072 00073 private: 00074 static TypeHandle _type_handle; 00075 }; 00076 00077 #include "forceNode.I" 00078 00079 #endif // FORCENODE_H