80 lines
1.8 KiB
C
80 lines
1.8 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 linearForce.h
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* @author charles
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* @date 2000-06-13
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*/
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#ifndef LINEARFORCE_H
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#define LINEARFORCE_H
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#include "baseForce.h"
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/**
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* A force that acts on a PhysicsObject by way of an Integrator. This is a
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* pure virtual base class.
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*/
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class EXPCL_PANDA_PHYSICS LinearForce : public BaseForce {
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PUBLISHED:
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~LinearForce();
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INLINE void set_amplitude(const PN_stdfloat a);
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INLINE void set_mass_dependent(bool m);
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INLINE PN_stdfloat get_amplitude() const;
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INLINE bool get_mass_dependent() const;
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INLINE void set_vector_masks(bool x, bool y, bool z);
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INLINE LVector3 get_vector_masks();
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LVector3 get_vector(const PhysicsObject *po);
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virtual LinearForce *make_copy() = 0;
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virtual bool is_linear() 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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protected:
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LinearForce(PN_stdfloat a, bool mass);
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LinearForce(const LinearForce& copy);
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private:
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PN_stdfloat _amplitude;
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bool _mass_dependent;
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bool _x_mask;
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bool _y_mask;
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bool _z_mask;
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virtual LVector3 get_child_vector(const PhysicsObject *po) = 0;
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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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BaseForce::init_type();
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register_type(_type_handle, "LinearForce",
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BaseForce::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 "linearForce.I"
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#endif // BASELINEARFORCE_H
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