#include <b2_friction_joint.h>

Inheritance diagram for b2FrictionJoint:

Public Member Functions
void	Dump () override
	Dump joint to dmLog. More...

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

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

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...

float	GetMaxForce () const
	Get the maximum friction force in N. More...

float	GetMaxTorque () const
	Get the maximum friction torque in N*m. More...

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

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

void	SetMaxForce (float force)
	Set the maximum friction force in N. More...

void	SetMaxTorque (float torque)
	Set the maximum friction torque in N*m. More...

Public Member Functions inherited from b2Joint
virtual void	Draw (b2Draw *draw) const
	Debug draw this joint. More...

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...

b2JointUserData &	GetUserData ()
	Get the user data pointer. More...

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

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

Protected Member Functions
	b2FrictionJoint (const b2FrictionJointDef *def)

void	InitVelocityConstraints (const b2SolverData &data) override

bool	SolvePositionConstraints (const b2SolverData &data) override

void	SolveVelocityConstraints (const b2SolverData &data) override

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

virtual	~b2Joint ()

Protected Attributes
float	m_angularImpulse

float	m_angularMass

int32	m_indexA

int32	m_indexB

float	m_invIA

float	m_invIB

float	m_invMassA

float	m_invMassB

b2Vec2	m_linearImpulse

b2Mat22	m_linearMass

b2Vec2	m_localAnchorA

b2Vec2	m_localAnchorB

b2Vec2	m_localCenterA

b2Vec2	m_localCenterB

float	m_maxForce

float	m_maxTorque

b2Vec2	m_rA

b2Vec2	m_rB

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

b2JointUserData	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

Friction joint. This is used for top-down friction. It provides 2D translational friction and angular friction.

Definition at line 60 of file b2_friction_joint.h.

Constructor & Destructor Documentation

◆ b2FrictionJoint()

b2FrictionJoint::b2FrictionJoint ( const b2FrictionJointDef * def )

protected

Definition at line 47 of file b2_friction_joint.cpp.

Member Function Documentation

◆ Dump()

void b2FrictionJoint::Dump ( )

overridevirtual

Dump joint to dmLog.

Reimplemented from b2Joint.

Definition at line 241 of file b2_friction_joint.cpp.

◆ GetAnchorA()

b2Vec2 b2FrictionJoint::GetAnchorA ( ) const

overridevirtual

Get the anchor point on bodyA in world coordinates.

Implements b2Joint.

Definition at line 199 of file b2_friction_joint.cpp.

◆ GetAnchorB()

b2Vec2 b2FrictionJoint::GetAnchorB ( ) const

overridevirtual

Get the anchor point on bodyB in world coordinates.

Implements b2Joint.

Definition at line 204 of file b2_friction_joint.cpp.

◆ GetLocalAnchorA()

const b2Vec2& b2FrictionJoint::GetLocalAnchorA ( ) const

inline

The local anchor point relative to bodyA's origin.

Definition at line 70 of file b2_friction_joint.h.

◆ GetLocalAnchorB()

const b2Vec2& b2FrictionJoint::GetLocalAnchorB ( ) const

inline

The local anchor point relative to bodyB's origin.

Definition at line 73 of file b2_friction_joint.h.

◆ GetMaxForce()

float b2FrictionJoint::GetMaxForce ( ) const

Get the maximum friction force in N.

Definition at line 225 of file b2_friction_joint.cpp.

◆ GetMaxTorque()

float b2FrictionJoint::GetMaxTorque ( ) const

Get the maximum friction torque in N*m.

Definition at line 236 of file b2_friction_joint.cpp.

◆ GetReactionForce()

b2Vec2 b2FrictionJoint::GetReactionForce ( float inv_dt ) const

overridevirtual

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

Implements b2Joint.

Definition at line 209 of file b2_friction_joint.cpp.

◆ GetReactionTorque()

float b2FrictionJoint::GetReactionTorque ( float inv_dt ) const

overridevirtual

Get the reaction torque on bodyB in N*m.

Implements b2Joint.

Definition at line 214 of file b2_friction_joint.cpp.

◆ InitVelocityConstraints()

void b2FrictionJoint::InitVelocityConstraints ( const b2SolverData & data )

overrideprotectedvirtual

Implements b2Joint.

Definition at line 60 of file b2_friction_joint.cpp.

◆ SetMaxForce()

void b2FrictionJoint::SetMaxForce ( float force )

Set the maximum friction force in N.

Definition at line 219 of file b2_friction_joint.cpp.

◆ SetMaxTorque()

void b2FrictionJoint::SetMaxTorque ( float torque )

Set the maximum friction torque in N*m.

Definition at line 230 of file b2_friction_joint.cpp.

◆ SolvePositionConstraints()

bool b2FrictionJoint::SolvePositionConstraints ( const b2SolverData & data )

overrideprotectedvirtual

Implements b2Joint.

Definition at line 192 of file b2_friction_joint.cpp.

◆ SolveVelocityConstraints()

void b2FrictionJoint::SolveVelocityConstraints ( const b2SolverData & data )

overrideprotectedvirtual

Implements b2Joint.

Definition at line 135 of file b2_friction_joint.cpp.

Friends And Related Function Documentation

◆ b2Joint

friend class b2Joint

friend

Definition at line 92 of file b2_friction_joint.h.

Member Data Documentation

◆ m_angularImpulse

float b2FrictionJoint::m_angularImpulse

protected

Definition at line 105 of file b2_friction_joint.h.

◆ m_angularMass

float b2FrictionJoint::m_angularMass

protected

Definition at line 121 of file b2_friction_joint.h.

◆ m_indexA

int32 b2FrictionJoint::m_indexA

protected

Definition at line 110 of file b2_friction_joint.h.

◆ m_indexB

int32 b2FrictionJoint::m_indexB

protected

Definition at line 111 of file b2_friction_joint.h.

◆ m_invIA

float b2FrictionJoint::m_invIA

protected

Definition at line 118 of file b2_friction_joint.h.

◆ m_invIB

float b2FrictionJoint::m_invIB

protected

Definition at line 119 of file b2_friction_joint.h.

◆ m_invMassA

float b2FrictionJoint::m_invMassA

protected

Definition at line 116 of file b2_friction_joint.h.

◆ m_invMassB

float b2FrictionJoint::m_invMassB

protected

Definition at line 117 of file b2_friction_joint.h.

◆ m_linearImpulse

b2Vec2 b2FrictionJoint::m_linearImpulse

protected

Definition at line 104 of file b2_friction_joint.h.

◆ m_linearMass

b2Mat22 b2FrictionJoint::m_linearMass

protected

Definition at line 120 of file b2_friction_joint.h.

◆ m_localAnchorA

b2Vec2 b2FrictionJoint::m_localAnchorA

protected

Definition at line 100 of file b2_friction_joint.h.

◆ m_localAnchorB

b2Vec2 b2FrictionJoint::m_localAnchorB

protected

Definition at line 101 of file b2_friction_joint.h.

◆ m_localCenterA

b2Vec2 b2FrictionJoint::m_localCenterA

protected

Definition at line 114 of file b2_friction_joint.h.

◆ m_localCenterB

b2Vec2 b2FrictionJoint::m_localCenterB

protected

Definition at line 115 of file b2_friction_joint.h.

◆ m_maxForce

float b2FrictionJoint::m_maxForce

protected

Definition at line 106 of file b2_friction_joint.h.

◆ m_maxTorque

float b2FrictionJoint::m_maxTorque

protected

Definition at line 107 of file b2_friction_joint.h.

◆ m_rA

b2Vec2 b2FrictionJoint::m_rA

protected

Definition at line 112 of file b2_friction_joint.h.

◆ m_rB

b2Vec2 b2FrictionJoint::m_rB

protected

Definition at line 113 of file b2_friction_joint.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

◆ b2FrictionJoint()

Member Function Documentation

◆ Dump()

◆ GetAnchorA()

◆ GetAnchorB()

◆ GetLocalAnchorA()

◆ GetLocalAnchorB()

◆ GetMaxForce()

◆ GetMaxTorque()

◆ GetReactionForce()

◆ GetReactionTorque()

◆ InitVelocityConstraints()

◆ SetMaxForce()

◆ SetMaxTorque()

◆ SolvePositionConstraints()

◆ SolveVelocityConstraints()

Friends And Related Function Documentation

◆ b2Joint

Member Data Documentation

◆ m_angularImpulse

◆ m_angularMass

◆ m_indexA

◆ m_indexB

◆ m_invIA

◆ m_invIB

◆ m_invMassA

◆ m_invMassB

◆ m_linearImpulse

◆ m_linearMass

◆ m_localAnchorA

◆ m_localAnchorB

◆ m_localCenterA

◆ m_localCenterB

◆ m_maxForce

◆ m_maxTorque

◆ m_rA

◆ m_rB