/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.physics.box2d.joints;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.Body;
import com.badlogic.gdx.physics.box2d.JointDef;
/** Friction joint definition. */
public class FrictionJointDef extends JointDef {
public FrictionJointDef () {
type = JointType.FrictionJoint;
}
/** Initialize the bodies, anchors, axis, and reference angle using the world anchor and world axis. */
public void initialize (Body bodyA, Body bodyB, Vector2 anchor) {
this.bodyA = bodyA;
this.bodyB = bodyB;
localAnchorA.set(bodyA.getLocalPoint(anchor));
localAnchorB.set(bodyB.getLocalPoint(anchor));
}
/** The local anchor point relative to bodyA's origin. */
public final Vector2 localAnchorA = new Vector2();
/** The local anchor point relative to bodyB's origin. */
public final Vector2 localAnchorB = new Vector2();
/** The maximum friction force in N. */
public float maxForce = 0;
/** The maximum friction torque in N-m. */
public float maxTorque = 0;
@Override
public org.jbox2d.dynamics.joints.JointDef toJBox2d () {
org.jbox2d.dynamics.joints.FrictionJointDef jd = new org.jbox2d.dynamics.joints.FrictionJointDef();
jd.bodyA = bodyA.body;
jd.bodyB = bodyB.body;
jd.collideConnected = collideConnected;
jd.localAnchorA.set(localAnchorA.x, localAnchorA.y);
jd.localAnchorB.set(localAnchorB.x, localAnchorB.y);
jd.maxForce = maxForce;
jd.maxTorque = maxTorque;
jd.type = org.jbox2d.dynamics.joints.JointType.FRICTION;
return jd;
}
}