Panda3D
baseForce.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 baseForce.h
10  * @author charles
11  * @date 2000-08-08
12  */
13 
14 #ifndef BASEFORCE_H
15 #define BASEFORCE_H
16 
17 #include "pandabase.h"
18 #include "typedReferenceCount.h"
19 #include "luse.h"
20 #include "nodePath.h"
21 
22 #include "physicsObject.h"
23 
24 class ForceNode;
25 
26 /**
27  * pure virtual base class for all forces that could POSSIBLY exist.
28  */
29 class EXPCL_PANDA_PHYSICS BaseForce : public TypedReferenceCount {
30 PUBLISHED:
31  virtual ~BaseForce();
32 
33  INLINE bool get_active() const;
34  INLINE void set_active(bool active);
35  virtual bool is_linear() const = 0;
36 
37  INLINE ForceNode *get_force_node() const;
38  INLINE NodePath get_force_node_path() const;
39 
40  virtual void output(std::ostream &out) const;
41  virtual void write(std::ostream &out, int indent_level=0) const;
42 
43 protected:
44  BaseForce(bool active = true);
45  BaseForce(const BaseForce &copy);
46 
47 private:
48  ForceNode *_force_node;
49  NodePath _force_node_path;
50  bool _active;
51 
52 public:
53  static TypeHandle get_class_type() {
54  return _type_handle;
55  }
56  static void init_type() {
57  TypedReferenceCount::init_type();
58  register_type(_type_handle, "BaseForce",
59  TypedReferenceCount::get_class_type());
60  }
61  virtual TypeHandle get_type() const {
62  return get_class_type();
63  }
64  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
65 
66 private:
67  static TypeHandle _type_handle;
68 
69  friend class ForceNode;
70 };
71 
72 #include "baseForce.I"
73 
74 #endif // BASEFORCE_H
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pure virtual base class for all forces that could POSSIBLY exist.
Definition: baseForce.h:29
A force that lives in the scene graph and is therefore subject to local coordinate systems.
Definition: forceNode.h:27
NodePath is the fundamental system for disambiguating instances, and also provides a higher-level int...
Definition: nodePath.h:159
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
A base class for things which need to inherit from both TypedObject and from ReferenceCount.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
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(),...
Definition: register_type.I:22
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.