#include <b2_rope_joint.h>

Inheritance diagram for b2RopeJoint:

Public Member Functions
b2Vec2	GetAnchorA () const override
	Get the anchor point on bodyA in world coordinates.

b2Vec2	GetAnchorB () const override
	Get the anchor point on bodyB in world coordinates.

b2Vec2	GetReactionForce (float inv_dt) const override
	Get the reaction force on bodyB at the joint anchor in Newtons.

float	GetReactionTorque (float inv_dt) const override
	Get the reaction torque on bodyB in N*m.

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

const b2Vec2 &	GetLocalAnchorB () const
	The local anchor point relative to bodyB's origin.

void	SetMaxLength (float length)
	Set/Get the maximum length of the rope.

float	GetMaxLength () const

float	GetLength () const

void	Dump () override
	Dump joint to dmLog.

Public Member Functions inherited from b2Joint
b2JointType	GetType () const
	Get the type of the concrete joint.

b2Body *	GetBodyA ()
	Get the first body attached to this joint.

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

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

const b2Joint *	GetNext () const

void *	GetUserData () const
	Get the user data pointer.

void	SetUserData (void *data)
	Set the user data pointer.

bool	IsEnabled () const
	Short-cut function to determine if either body is enabled.

bool	GetCollideConnected () const

virtual void	ShiftOrigin (const b2Vec2 &newOrigin)
	Shift the origin for any points stored in world coordinates.

virtual void	Draw (b2Draw *draw) const
	Debug draw this joint.

Protected Member Functions
	b2RopeJoint (const b2RopeJointDef *data)

void	InitVelocityConstraints (const b2SolverData &data) override

void	SolveVelocityConstraints (const b2SolverData &data) override

bool	SolvePositionConstraints (const b2SolverData &data) override

Protected Member Functions inherited from b2Joint
	b2Joint (const b2JointDef *def)

Protected Attributes
b2Vec2	m_localAnchorA

b2Vec2	m_localAnchorB

float	m_maxLength

float	m_length

float	m_impulse

int32	m_indexA

int32	m_indexB

b2Vec2	m_u

b2Vec2	m_rA

b2Vec2	m_rB

b2Vec2	m_localCenterA

b2Vec2	m_localCenterB

float	m_invMassA

float	m_invMassB

float	m_invIA

float	m_invIB

float	m_mass

Protected Attributes inherited from b2Joint
b2JointType	m_type

b2Joint *	m_prev

b2Joint *	m_next

b2JointEdge	m_edgeA

b2JointEdge	m_edgeB

b2Body *	m_bodyA

b2Body *	m_bodyB

int32	m_index

bool	m_islandFlag

bool	m_collideConnected

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.

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

D:/GitHub/box2d/include/box2d/b2_rope_joint.h

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description