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

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

Public Methods

Method Description
FixedLineJoint ( Body bodyA, Vector2 worldAnchor, 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.
GetReactionForce ( float inv_dt ) : Vector2
GetReactionTorque ( float inv_dt ) : float

Private Methods

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

Method Details

FixedLineJoint() 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 FixedLineJoint ( Body bodyA, Vector2 worldAnchor, Vector2 axis ) : System
bodyA Body The first body.
worldAnchor Vector2 The anchor.
axis Vector2 The axis.
return System

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