81 lines
2 KiB
C
81 lines
2 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file linearDistanceForce.h
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* @author charles
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* @date 2000-06-21
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*/
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#ifndef LINEARDISTANCEFORCE_H
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#define LINEARDISTANCEFORCE_H
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#include "linearForce.h"
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class BamReader;
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/**
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* Pure virtual class for sinks and sources
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*/
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class EXPCL_PANDA_PHYSICS LinearDistanceForce : public LinearForce {
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PUBLISHED:
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enum FalloffType {
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FT_ONE_OVER_R,
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FT_ONE_OVER_R_SQUARED,
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FT_ONE_OVER_R_CUBED
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};
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INLINE void set_radius(PN_stdfloat r);
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INLINE void set_falloff_type(FalloffType ft);
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INLINE void set_force_center(const LPoint3& p);
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INLINE PN_stdfloat get_radius() const;
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INLINE FalloffType get_falloff_type() const;
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INLINE LPoint3 get_force_center() const;
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INLINE PN_stdfloat get_scalar_term() const;
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virtual void output(std::ostream &out) const;
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virtual void write(std::ostream &out, int indent=0) const;
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private:
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LPoint3 _force_center;
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FalloffType _falloff;
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PN_stdfloat _radius;
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virtual LinearForce *make_copy() = 0;
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virtual LVector3 get_child_vector(const PhysicsObject *po) = 0;
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protected:
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LinearDistanceForce(const LPoint3& p, FalloffType ft, PN_stdfloat r, PN_stdfloat a,
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bool m);
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LinearDistanceForce(const LinearDistanceForce ©);
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virtual ~LinearDistanceForce();
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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LinearForce::init_type();
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register_type(_type_handle, "LinearDistanceForce",
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LinearForce::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "linearDistanceForce.I"
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#endif // LINEARDISTANCEFORCE_H
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