joint.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2013 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Arkadiusz Kalinowski
27 */
28 
29 
30 
31 #pragma once
32 
33 #include "../../api_physics2d.h"
34 #include "../../../Core/Math/vec2.h"
35 #include <memory>
36 
37 namespace clan
38 {
41 
42  class JointDescription;
43  class Joint_Impl;
44  class Body;
45 
48 {
59  Joint_None = 1337
60 };
61 
63 class CL_API_PHYSICS Joint
64 {
65 
68 public:
70  Joint();
71 
72  virtual ~Joint();
73 
77 public:
78 
79  JointType get_Joint_type () const;
80 
82  virtual bool is_null() const { return true; }
83 
85  virtual void throw_if_null() const;
86 
88  virtual bool is_active() const;
89 
91  virtual Vec2f get_reaction_force (float dt);
92 
94  virtual float get_reaction_torque (float dt);
95 
97  virtual Body* get_body_a();
98 
100  virtual Body* get_body_b();
101 
103  virtual Vec2f get_anchor_a();
104 
106  virtual Vec2f get_anchor_b();
107 
109  virtual int get_id() const;
110 
112  bool is_dummy() const;
113 
117 public:
118  Joint &operator =(const Joint &copy);
119 
120  //Add us
121  // Clone the concrete Joint
122  //virtual Joint *Clone () const = 0;
123 
124  //virtual int GetChildCount () const = 0;
125  //virtual bool TestPoint (const Vec2f &transformation, const Vec2f &point) const = 0;
126 
127  //virtual bool RayCast (b2RayCastOutput *output, const b2RayCastInput &input, const b2Transform &transform, int32 childIndex) const = 0;
128  //virtual void ComputeAABB (b2AABB *aabb, const b2Transform &xf, int32 childIndex) const = 0;
129  //virtual void ComputeMass (b2MassData *massData, float32 density) const = 0;
130  //Add us
131 
135 protected:
136 
137  std::shared_ptr<Joint_Impl> impl;
138 
140 
141  friend class PhysicsContext;
142  friend class PhysicsContext_Impl;
143 };
144 
145 }
146 
147 /// \}
JointType
Joint types.
Definition: joint.h:47
Definition: joint.h:49
std::shared_ptr< Joint_Impl > impl
Definition: joint.h:137
Definition: joint.h:55
Definition: joint.h:58
Joint class.
Definition: joint.h:63
Definition: joint.h:53
Body class.
Definition: body.h:52
Definition: joint.h:52
Definition: joint.h:50
virtual bool is_null() const
Returns true if this object is invalid.
Definition: joint.h:82
Definition: joint.h:59
Definition: joint.h:51
Definition: physics_context.h:45
Definition: joint.h:56
Definition: joint.h:54
Definition: joint.h:57