Panda3D
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linearControlForce.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file linearControlForce.h
10 * @author Dave Schuyler
11 * @date 2006
12 */
13
14#ifndef LINEARCONTROLFORCE_H
15#define LINEARCONTROLFORCE_H
16
17#include "linearForce.h"
18
19/**
20 * Simple directed vector force. This force is different from the others in
21 * that it can be global and still only affect a single object. That might
22 * not make sense for a physics simulation, but it's very handy for a game.
23 * I.e. this is the force applied by user on the selected object.
24 */
25class EXPCL_PANDA_PHYSICS LinearControlForce : public LinearForce {
26PUBLISHED:
27 explicit LinearControlForce(const PhysicsObject *po = 0, PN_stdfloat a = 1.0f,
28 bool mass = false);
30 virtual ~LinearControlForce();
31
32 INLINE void clear_physics_object();
33 INLINE void set_physics_object(const PhysicsObject *po);
34 INLINE CPT(PhysicsObject) get_physics_object() const;
35
36 INLINE void set_vector(const LVector3& v);
37 INLINE void set_vector(PN_stdfloat x, PN_stdfloat y, PN_stdfloat z);
38
39 INLINE LVector3 get_local_vector() const;
40
41 virtual void output(std::ostream &out) const;
42 virtual void write(std::ostream &out, int indent=0) const;
43
44private:
45 CPT(PhysicsObject) _physics_object;
46 LVector3 _fvec;
47
48 virtual LinearForce *make_copy();
49 virtual LVector3 get_child_vector(const PhysicsObject *po);
50
51public:
52 static TypeHandle get_class_type() {
53 return _type_handle;
54 }
55 static void init_type() {
56 LinearForce::init_type();
57 register_type(_type_handle, "LinearControlForce",
58 LinearForce::get_class_type());
59 }
60 virtual TypeHandle get_type() const {
61 return get_class_type();
62 }
63 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
64
65private:
66 static TypeHandle _type_handle;
67};
68
69#include "linearControlForce.I"
70
71#endif // LINEARCONTROLFORCE_H
Simple directed vector force.
A force that acts on a PhysicsObject by way of an Integrator.
Definition linearForce.h:23
virtual void write(std::ostream &out, int indent=0) const
Write a string representation of this instance to <out>.
virtual void output(std::ostream &out) const
Write a string representation of this instance to <out>.
A body on which physics will be applied.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
std::ostream & indent(std::ostream &out, int indent_level)
A handy function for doing text formatting.
Definition indent.cxx:20
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...