class: WheelJoint

[18:7] extends: Joint

Wraps jbox2d's WheelJoint (com.almasb.fxgl.physics.box2d.dynamics.joints.WheelJoint). Provides two degrees of freedom: translation along an axis fixed in bodyA and rotation in the plane. Designed for vehicle suspensions, with optional rotational motor and a soft spring/damper on the suspension axis.

Methods

WheelJoint ()

Empty default constructor; populated by adopt.
adopt (object Ajo)

Wraps an existing WheelJoint AussomJavaObject.
getLocalAnchorA ()

Returns the local anchor on body A as a Vec2 wrapper.
getLocalAnchorB ()

Returns the local anchor on body B as a Vec2 wrapper.
getLocalAxisA ()

Returns the local translation axis in body A as a Vec2 wrapper.
getJointTranslation ()

Returns the current joint translation, usually in meters.
getJointSpeed ()

Returns the current joint angular speed.
isMotorEnabled ()

Returns whether the joint motor is enabled.
enableMotor (bool Flag)

Enables or disables the joint motor.
setMotorSpeed (double Speed)

Sets the motor speed, usually in radians per second.
getMotorSpeed ()

Returns the motor speed, usually in radians per second.
getMaxMotorTorque ()

Returns the maximum motor torque, usually in N*m.
setMaxMotorTorque (double Torque)

Sets the maximum motor torque, usually in N*m.
getMotorTorque (double InvDt)

Returns the current motor torque for the inverse dt.
setSpringFrequencyHz (double Hz)

Sets the suspension spring frequency in Hertz.
getSpringFrequencyHz ()

Returns the suspension spring frequency in Hertz.
setSpringDampingRatio (double Ratio)

Sets the suspension damping ratio.
getSpringDampingRatio ()

Returns the suspension damping ratio.