Panda3D

linearRandomForce.h

00001 // Filename: linearRandomForce.h
00002 // Created by:  charles (19Jun00)
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 LINEARRANDOMFORCE_H
00016 #define LINEARRANDOMFORCE_H
00017 
00018 #include <stdlib.h>
00019 #include "cmath.h"
00020 #include "mathNumbers.h"
00021 #include "linearForce.h"
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : LinearRandomForce
00025 // Description : Pure virtual, parent to noiseForce and jitterForce
00026 ////////////////////////////////////////////////////////////////////
00027 class EXPCL_PANDAPHYSICS LinearRandomForce : public LinearForce {
00028 PUBLISHED:
00029   virtual ~LinearRandomForce();
00030   
00031   virtual void output(ostream &out) const;
00032   virtual void write(ostream &out, unsigned int indent=0) const;
00033 
00034 protected:
00035   static PN_stdfloat bounded_rand();
00036   static LVector3 random_unit_vector();
00037 
00038   LinearRandomForce(PN_stdfloat a = 1.0f, bool m = false);
00039   LinearRandomForce(const LinearRandomForce &copy);
00040 
00041   virtual LVector3 get_child_vector(const PhysicsObject *po) = 0;
00042   virtual LinearForce *make_copy() = 0;
00043 
00044 public:
00045   static TypeHandle get_class_type() {
00046     return _type_handle;
00047   }
00048   static void init_type() {
00049     LinearForce::init_type();
00050     register_type(_type_handle, "LinearRandomForce",
00051                   LinearForce::get_class_type());
00052   }
00053   virtual TypeHandle get_type() const {
00054     return get_class_type();
00055   }
00056   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00057 
00058 private:
00059   static TypeHandle _type_handle;
00060 };
00061 
00062 #include "linearRandomForce.I"
00063 
00064 #endif // LINEARRANDOMFORCE_H
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