C# Class Project290.Physics.Dynamics.Joints.LineJoint

A line joint. This joint provides two degrees of freedom: translation along an axis fixed in body1 and rotation in the plane. You can use a joint limit to restrict the range of motion and a joint motor to drive the motion or to model joint friction.

Inheritance: Joint

Show file Open project: scastle/Solitude Class Usage Examples

Public Properties

Property	Type	Description
LocalAnchorA	Vector2
LocalAnchorB	Vector2

Public Methods

Method	Description
GetReactionForce ( float inv_dt ) : Vector2
GetReactionTorque ( float inv_dt ) : float
LineJoint ( Body bodyA, Body bodyB, Vector2 localAnchorA, Vector2 localAnchorB, Vector2 axis ) : System	Initialize the bodies, anchors, axis, and reference angle using the local anchor and world axis. This requires defining a line of motion using an axis and an anchor point. Uses local anchor points and a local axis so that the initial configuration can violate the constraint slightly. The joint translation is zero when the local anchor points coincide in world space. Using local anchors and a local axis helps when saving and loading a game.

Private Methods

Method	Description
InitVelocityConstraints ( TimeStep &step ) : void
SolvePositionConstraints ( ) : bool
SolveVelocityConstraints ( TimeStep &step ) : void

Method Details

GetReactionForce() public method

public GetReactionForce ( float inv_dt ) : Vector2
inv_dt	float
return	Vector2

GetReactionTorque() public method

public GetReactionTorque ( float inv_dt ) : float
inv_dt	float
return	float

LineJoint() public method

Initialize the bodies, anchors, axis, and reference angle using the local anchor and world axis. This requires defining a line of motion using an axis and an anchor point. Uses local anchor points and a local axis so that the initial configuration can violate the constraint slightly. The joint translation is zero when the local anchor points coincide in world space. Using local anchors and a local axis helps when saving and loading a game.

public LineJoint ( Body bodyA, Body bodyB, Vector2 localAnchorA, Vector2 localAnchorB, Vector2 axis ) : System
bodyA	Body	The first body.
bodyB	Body	The second body.
localAnchorA	Vector2	The first body anchor.
localAnchorB	Vector2	The second body anchor.
axis	Vector2	The axis.
return	System

Property Details

LocalAnchorA public property

The local anchor point relative to body1's origin.

public Vector2 LocalAnchorA
return	Vector2

LocalAnchorB public property

The local anchor point relative to body2's origin.

public Vector2 LocalAnchorB
return	Vector2