com.badlogic.gdx.physics.box2d.joints

Class PrismaticJoint

java.lang.Object

com.badlogic.gdx.physics.box2d.Joint

com.badlogic.gdx.physics.box2d.joints.PrismaticJoint

public class PrismaticJoint
extends Joint

A prismatic joint. This joint provides one degree of freedom: translation along an axis fixed in body1. Relative rotation is prevented. 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.

Constructor Summary

Constructors

Constructor and Description
PrismaticJoint(World world, long addr)

Method Summary

Modifier and Type	Method and Description
void	enableLimit(boolean flag) Enable/disable the joint limit.
void	enableMotor(boolean flag) Enable/disable the joint motor.
float	getJointSpeed() Get the current joint translation speed, usually in meters per second.
float	getJointTranslation() Get the current joint translation, usually in meters.
Vector2	getLocalAnchorA()
Vector2	getLocalAnchorB()
Vector2	getLocalAxisA()
float	getLowerLimit() Get the lower joint limit, usually in meters.
float	getMaxMotorForce() Get the max motor force, usually in N.
float	getMotorForce(float invDt) Get the current motor force given the inverse time step, usually in N.
float	getMotorSpeed() Get the motor speed, usually in meters per second.
float	getReferenceAngle() Get the reference angle.
float	getUpperLimit() Get the upper joint limit, usually in meters.
boolean	isLimitEnabled() Is the joint limit enabled?
boolean	isMotorEnabled() Is the joint motor enabled?
void	setLimits(float lower, float upper) Set the joint limits, usually in meters.
void	setMaxMotorForce(float force) Set the maximum motor force, usually in N.
void	setMotorSpeed(float speed) Set the motor speed, usually in meters per second.

Methods inherited from class com.badlogic.gdx.physics.box2d.Joint

getAnchorA, getAnchorB, getBodyA, getBodyB, getCollideConnected, getReactionForce, getReactionTorque, getType, getUserData, isActive, setUserData

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PrismaticJoint

public PrismaticJoint(World world,
                      long addr)

Method Detail

getLocalAnchorA

public Vector2 getLocalAnchorA()

getLocalAnchorB

public Vector2 getLocalAnchorB()

getLocalAxisA

public Vector2 getLocalAxisA()

getJointTranslation

public float getJointTranslation()

Get the current joint translation, usually in meters.

getJointSpeed

public float getJointSpeed()

Get the current joint translation speed, usually in meters per second.

isLimitEnabled

public boolean isLimitEnabled()

Is the joint limit enabled?

enableLimit

public void enableLimit(boolean flag)

Enable/disable the joint limit.

getLowerLimit

public float getLowerLimit()

Get the lower joint limit, usually in meters.

getUpperLimit

public float getUpperLimit()

Get the upper joint limit, usually in meters.

setLimits

public void setLimits(float lower,
                      float upper)

Set the joint limits, usually in meters.

isMotorEnabled

public boolean isMotorEnabled()

Is the joint motor enabled?

enableMotor

public void enableMotor(boolean flag)

Enable/disable the joint motor.

setMotorSpeed

public void setMotorSpeed(float speed)

Set the motor speed, usually in meters per second.

getMotorSpeed

public float getMotorSpeed()

Get the motor speed, usually in meters per second.

setMaxMotorForce

public void setMaxMotorForce(float force)

Set the maximum motor force, usually in N.

getMotorForce

public float getMotorForce(float invDt)

Get the current motor force given the inverse time step, usually in N.

getMaxMotorForce

public float getMaxMotorForce()

Get the max motor force, usually in N.

getReferenceAngle

public float getReferenceAngle()

Get the reference angle.