Panda3D
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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 ©); 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