#include <b2RopeJoint.h>

Inheritance diagram for b2RopeJoint:

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 b2Vec2 &	GetLocalAnchorA () const
	The local anchor point relative to bodyA's origin. More...

const b2Vec2 &	GetLocalAnchorB () 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
b2Body *	GetBodyA ()
	Get the first body attached to this joint. More...

b2Body *	GetBodyB ()
	Get the second body attached to this joint. More...

bool	GetCollideConnected () const

b2Joint *	GetNext ()
	Get the next joint the world joint list. More...

const b2Joint *	GetNext () const

b2JointType	GetType () const
	Get the type of the concrete joint. More...

void *	GetUserData () 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
b2Body *	m_bodyA

b2Body *	m_bodyB

bool	m_collideConnected

b2JointEdge	m_edgeA

b2JointEdge	m_edgeB

int32	m_index

bool	m_islandFlag

b2Joint *	m_next

b2Joint *	m_prev

b2JointType	m_type

void *	m_userData

Friends
class	b2Joint

Additional Inherited Members
Static Protected Member Functions inherited from b2Joint
static b2Joint *	Create (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:

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation