C# Class FarseerPhysics.Dynamics.Joints.RopeJoint

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.

Inheritance: Joint

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Public Properties

Property	Type	Description
localAnchorA	Vector2
localAnchorB	Vector2
maxLength	float

Public Methods

Method	Description
RopeJoint ( Body bodyA, Body bodyB, Vector2 anchorA, Vector2 anchorB, bool useWorldCoordinates = false ) : System	Constructor for RopeJoint.
getReactionForce ( float invDt ) : Vector2
getReactionTorque ( float invDt ) : float

Private Methods

Method	Description
RopeJoint ( ) : System
initVelocityConstraints ( SolverData &data ) : void
solvePositionConstraints ( SolverData &data ) : bool
solveVelocityConstraints ( SolverData &data ) : void

Method Details

RopeJoint() public method

Constructor for RopeJoint.

public RopeJoint ( Body bodyA, Body bodyB, Vector2 anchorA, Vector2 anchorB, bool useWorldCoordinates = false ) : System
bodyA	Body	The first body
bodyB	Body	The second body
anchorA	Vector2	The anchor on the first body
anchorB	Vector2	The anchor on the second body
useWorldCoordinates	bool	Set to true if you are using world coordinates as anchors.
return	System

getReactionForce() public method

public getReactionForce ( float invDt ) : Vector2
invDt	float
return	Vector2

getReactionTorque() public method

public getReactionTorque ( float invDt ) : float
invDt	float
return	float

Property Details

localAnchorA public_oe property

The local anchor point on BodyA

public Vector2 localAnchorA
return	Vector2

localAnchorB public_oe property

The local anchor point on BodyB

public Vector2 localAnchorB
return	Vector2

maxLength public_oe property

Get or set the maximum length of the rope. By default, it is the distance between the two anchor points.

public float maxLength
return	float