b2Joint Class Reference

#include <b2Joint.h>

Inheritance diagram for b2Joint:

Public Member Functions
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.
virtual b2Vec2	GetAnchorA () const =0
	Get the anchor point on bodyA in world coordinates.
virtual b2Vec2	GetAnchorB () const =0
	Get the anchor point on bodyB in world coordinates.
virtual b2Vec2	GetReactionForce (float32 inv_dt) const =0
	Get the reaction force on bodyB at the joint anchor in Newtons.
virtual float32	GetReactionTorque (float32 inv_dt) const =0
	Get the reaction torque on bodyB in N*m.
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	IsActive () const
	Short-cut function to determine if either body is inactive.
bool	GetCollideConnected () const
virtual void	Dump ()
	Dump this joint to the log file.
virtual void	ShiftOrigin (const b2Vec2 &newOrigin)
	Shift the origin for any points stored in world coordinates.

Protected Member Functions
	b2Joint (const b2JointDef *def)
virtual void	InitVelocityConstraints (const b2SolverData &data)=0
virtual void	SolveVelocityConstraints (const b2SolverData &data)=0
virtual bool	SolvePositionConstraints (const b2SolverData &data)=0

Static Protected Member Functions
static b2Joint *	Create (const b2JointDef *def, b2BlockAllocator *allocator)
static void	Destroy (b2Joint *joint, b2BlockAllocator *allocator)

Protected Attributes
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	b2World
class	b2Body
class	b2Island
class	b2GearJoint

Detailed Description

The base joint class. Joints are used to constraint two bodies together in various fashions. Some joints also feature limits and motors.

Member Function Documentation

bool b2Joint::GetCollideConnected ( ) const

inline

Get collide connected. Note: modifying the collide connect flag won't work correctly because the flag is only checked when fixture AABBs begin to overlap.

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

• b2Joint.h
• b2Joint.cpp