Public Member Functions | Protected Member Functions | Protected Attributes | Friends | List of all members
b2RopeJoint Class Reference

#include <b2RopeJoint.h>

Inheritance diagram for b2RopeJoint:
Inheritance graph
[legend]

Public Member Functions

void Dump ()
 Dump joint to dmLog. More...
 
b2Vec2 GetAnchorA () const
 Get the anchor point on bodyA in world coordinates. More...
 
b2Vec2 GetAnchorB () const
 Get the anchor point on bodyB in world coordinates. More...
 
b2LimitState GetLimitState () const
 
const b2Vec2GetLocalAnchorA () const
 The local anchor point relative to bodyA's origin. More...
 
const b2Vec2GetLocalAnchorB () const
 The local anchor point relative to bodyB's origin. More...
 
float32 GetMaxLength () const
 
b2Vec2 GetReactionForce (float32 inv_dt) const
 Get the reaction force on bodyB at the joint anchor in Newtons. More...
 
float32 GetReactionTorque (float32 inv_dt) const
 Get the reaction torque on bodyB in N*m. More...
 
void SetMaxLength (float32 length)
 Set/Get the maximum length of the rope. More...
 
- Public Member Functions inherited from b2Joint
b2BodyGetBodyA ()
 Get the first body attached to this joint. More...
 
b2BodyGetBodyB ()
 Get the second body attached to this joint. More...
 
bool GetCollideConnected () const
 
b2JointGetNext ()
 Get the next joint the world joint list. More...
 
const b2JointGetNext () const
 
b2JointType GetType () const
 Get the type of the concrete joint. More...
 
voidGetUserData () const
 Get the user data pointer. More...
 
bool IsActive () const
 Short-cut function to determine if either body is inactive. More...
 
void SetUserData (void *data)
 Set the user data pointer. More...
 
virtual void ShiftOrigin (const b2Vec2 &newOrigin)
 Shift the origin for any points stored in world coordinates. More...
 

Protected Member Functions

 b2RopeJoint (const b2RopeJointDef *data)
 
void InitVelocityConstraints (const b2SolverData &data)
 
bool SolvePositionConstraints (const b2SolverData &data)
 
void SolveVelocityConstraints (const b2SolverData &data)
 
- Protected Member Functions inherited from b2Joint
 b2Joint (const b2JointDef *def)
 
virtual ~b2Joint ()
 

Protected Attributes

float32 m_impulse
 
int32 m_indexA
 
int32 m_indexB
 
float32 m_invIA
 
float32 m_invIB
 
float32 m_invMassA
 
float32 m_invMassB
 
float32 m_length
 
b2Vec2 m_localAnchorA
 
b2Vec2 m_localAnchorB
 
b2Vec2 m_localCenterA
 
b2Vec2 m_localCenterB
 
float32 m_mass
 
float32 m_maxLength
 
b2Vec2 m_rA
 
b2Vec2 m_rB
 
b2LimitState m_state
 
b2Vec2 m_u
 
- Protected Attributes inherited from b2Joint
b2Bodym_bodyA
 
b2Bodym_bodyB
 
bool m_collideConnected
 
b2JointEdge m_edgeA
 
b2JointEdge m_edgeB
 
int32 m_index
 
bool m_islandFlag
 
b2Jointm_next
 
b2Jointm_prev
 
b2JointType m_type
 
voidm_userData
 

Friends

class b2Joint
 

Additional Inherited Members

- Static Protected Member Functions inherited from b2Joint
static b2JointCreate (const b2JointDef *def, b2BlockAllocator *allocator)
 
static void Destroy (b2Joint *joint, b2BlockAllocator *allocator)
 

Detailed Description

A rope joint enforces a maximum distance between two points on two bodies. It has no other effect. Warning: if you attempt to change the maximum length during the simulation you will get some non-physical behavior. A model that would allow you to dynamically modify the length would have some sponginess, so I chose not to implement it that way. See b2DistanceJoint if you want to dynamically control length.

Definition at line 58 of file b2RopeJoint.h.

Constructor & Destructor Documentation

b2RopeJoint::b2RopeJoint ( const b2RopeJointDef data)
protected

Definition at line 32 of file b2RopeJoint.cpp.

Member Function Documentation

void b2RopeJoint::Dump ( )
virtual

Dump joint to dmLog.

Reimplemented from b2Joint.

Definition at line 228 of file b2RopeJoint.cpp.

b2Vec2 b2RopeJoint::GetAnchorA ( ) const
virtual

Get the anchor point on bodyA in world coordinates.

Implements b2Joint.

Definition at line 196 of file b2RopeJoint.cpp.

b2Vec2 b2RopeJoint::GetAnchorB ( ) const
virtual

Get the anchor point on bodyB in world coordinates.

Implements b2Joint.

Definition at line 201 of file b2RopeJoint.cpp.

b2LimitState b2RopeJoint::GetLimitState ( ) const

Definition at line 223 of file b2RopeJoint.cpp.

const b2Vec2& b2RopeJoint::GetLocalAnchorA ( ) const
inline

The local anchor point relative to bodyA's origin.

Definition at line 68 of file b2RopeJoint.h.

const b2Vec2& b2RopeJoint::GetLocalAnchorB ( ) const
inline

The local anchor point relative to bodyB's origin.

Definition at line 71 of file b2RopeJoint.h.

float32 b2RopeJoint::GetMaxLength ( ) const

Definition at line 218 of file b2RopeJoint.cpp.

b2Vec2 b2RopeJoint::GetReactionForce ( float32  inv_dt) const
virtual

Get the reaction force on bodyB at the joint anchor in Newtons.

Implements b2Joint.

Definition at line 206 of file b2RopeJoint.cpp.

float32 b2RopeJoint::GetReactionTorque ( float32  inv_dt) const
virtual

Get the reaction torque on bodyB in N*m.

Implements b2Joint.

Definition at line 212 of file b2RopeJoint.cpp.

void b2RopeJoint::InitVelocityConstraints ( const b2SolverData data)
protectedvirtual

Implements b2Joint.

Definition at line 46 of file b2RopeJoint.cpp.

void b2RopeJoint::SetMaxLength ( float32  length)
inline

Set/Get the maximum length of the rope.

Definition at line 74 of file b2RopeJoint.h.

bool b2RopeJoint::SolvePositionConstraints ( const b2SolverData data)
protectedvirtual

Implements b2Joint.

Definition at line 162 of file b2RopeJoint.cpp.

void b2RopeJoint::SolveVelocityConstraints ( const b2SolverData data)
protectedvirtual

Implements b2Joint.

Definition at line 126 of file b2RopeJoint.cpp.

Friends And Related Function Documentation

friend class b2Joint
friend

Definition at line 84 of file b2RopeJoint.h.

Member Data Documentation

float32 b2RopeJoint::m_impulse
protected

Definition at line 96 of file b2RopeJoint.h.

int32 b2RopeJoint::m_indexA
protected

Definition at line 99 of file b2RopeJoint.h.

int32 b2RopeJoint::m_indexB
protected

Definition at line 100 of file b2RopeJoint.h.

float32 b2RopeJoint::m_invIA
protected

Definition at line 108 of file b2RopeJoint.h.

float32 b2RopeJoint::m_invIB
protected

Definition at line 109 of file b2RopeJoint.h.

float32 b2RopeJoint::m_invMassA
protected

Definition at line 106 of file b2RopeJoint.h.

float32 b2RopeJoint::m_invMassB
protected

Definition at line 107 of file b2RopeJoint.h.

float32 b2RopeJoint::m_length
protected

Definition at line 95 of file b2RopeJoint.h.

b2Vec2 b2RopeJoint::m_localAnchorA
protected

Definition at line 92 of file b2RopeJoint.h.

b2Vec2 b2RopeJoint::m_localAnchorB
protected

Definition at line 93 of file b2RopeJoint.h.

b2Vec2 b2RopeJoint::m_localCenterA
protected

Definition at line 104 of file b2RopeJoint.h.

b2Vec2 b2RopeJoint::m_localCenterB
protected

Definition at line 105 of file b2RopeJoint.h.

float32 b2RopeJoint::m_mass
protected

Definition at line 110 of file b2RopeJoint.h.

float32 b2RopeJoint::m_maxLength
protected

Definition at line 94 of file b2RopeJoint.h.

b2Vec2 b2RopeJoint::m_rA
protected

Definition at line 102 of file b2RopeJoint.h.

b2Vec2 b2RopeJoint::m_rB
protected

Definition at line 103 of file b2RopeJoint.h.

b2LimitState b2RopeJoint::m_state
protected

Definition at line 111 of file b2RopeJoint.h.

b2Vec2 b2RopeJoint::m_u
protected

Definition at line 101 of file b2RopeJoint.h.


The documentation for this class was generated from the following files:


mvsim
Author(s):
autogenerated on Fri May 7 2021 03:05:52