import com.badlogic.gdx.physics.box2d.joints.FrictionJointDef; //导入依赖的package包/类
public JointSerializer(RubeScene scene,Json _json)
{
	this.scene = scene;
	_json.setSerializer(RevoluteJointDef.class, 	new RevoluteJointDefSerializer());
	_json.setSerializer(PrismaticJointDef.class, 	new PrismaticJointDefSerializer());
	_json.setSerializer(PulleyJointDef.class, 		new PulleyJointDefSerializer());
	_json.setSerializer(WeldJointDef.class, 		new WeldJointDefSerializer());
	_json.setSerializer(FrictionJointDef.class, 	new FrictionJointDefSerializer());
	_json.setSerializer(WheelJointDef.class, 		new WheelJointDefSerializer());
	_json.setSerializer(RopeJointDef.class, 		new RopeJointDefSerializer());
	_json.setSerializer(DistanceJointDef.class, 	new DistanceJointDefSerializer());
	_json.setSerializer(GearJointDef.class, 		new GearJointDefSerializer());
	
	mouseJointDefSerializer = new MouseJointDefSerializer();
	
	_json.setSerializer(MouseJointDef.class, 		mouseJointDefSerializer);
}
 

import com.badlogic.gdx.physics.box2d.joints.FrictionJointDef; //导入依赖的package包/类
@SuppressWarnings("rawtypes")
@Override
public FrictionJointDef read(Json json, JsonValue jsonData, Class type)
{	
	FrictionJointDef defaults = RubeDefaults.Joint.frictionDef;
	
	FrictionJointDef def = new FrictionJointDef();
	
	Vector2 anchorA = json.readValue("anchorA", Vector2.class, defaults.localAnchorA, jsonData);
	Vector2 anchorB = json.readValue("anchorB", Vector2.class, defaults.localAnchorB, jsonData);
	
	if(anchorA != null && anchorB != null)
	{
		def.localAnchorA.set(anchorA);
		def.localAnchorB.set(anchorB);
		def.maxForce 	= json.readValue("maxForce", float.class, defaults.maxForce, jsonData);
		def.maxTorque 	= json.readValue("maxTorque", float.class, defaults.maxTorque, jsonData);
	}
	
	return def; 
}
 

import com.badlogic.gdx.physics.box2d.joints.FrictionJointDef; //导入依赖的package包/类
/**
 * Creates the joint.
 * @return This joint. Handy for chaining stuff together.
 */
@Override
public B2FlxFrictionJoint create()
{
	((FrictionJointDef)jointDef).initialize(bodyA, bodyB, anchorA);
	joint = B2FlxB.world.createJoint(jointDef);
	return this;
}
 

import com.badlogic.gdx.physics.box2d.joints.FrictionJointDef; //导入依赖的package包/类
@Override
public void reset() {
    jointDef = new FrictionJointDef();

}
 

import com.badlogic.gdx.physics.box2d.joints.FrictionJointDef; //导入依赖的package包/类
/**
 * Set the max force.
 * @param maxForce
 * @return	This joint. Handy for chaining stuff together.
 */
public B2FlxFrictionJoint setMaxForce(float maxForce)
{
	((FrictionJointDef)jointDef).maxForce = maxForce;
	return this;
}
 

import com.badlogic.gdx.physics.box2d.joints.FrictionJointDef; //导入依赖的package包/类
/**
 * Set the max torque.
 * @param maxTorque
 * @return	This joint. Handy for chaining stuff together.
 */
public B2FlxFrictionJoint setMaxTorque(float maxTorque)
{
	((FrictionJointDef)jointDef).maxTorque = maxTorque;
	return this;
}
 

import com.badlogic.gdx.physics.box2d.joints.FrictionJointDef; //导入依赖的package包/类
private long createProperJoint(JointDef paramJointDef)
{
  if (paramJointDef.type == JointDef.JointType.DistanceJoint)
  {
    DistanceJointDef localDistanceJointDef = (DistanceJointDef)paramJointDef;
    return jniCreateDistanceJoint(this.addr, localDistanceJointDef.bodyA.addr, localDistanceJointDef.bodyB.addr, localDistanceJointDef.collideConnected, localDistanceJointDef.localAnchorA.x, localDistanceJointDef.localAnchorA.y, localDistanceJointDef.localAnchorB.x, localDistanceJointDef.localAnchorB.y, localDistanceJointDef.length, localDistanceJointDef.frequencyHz, localDistanceJointDef.dampingRatio);
  }
  if (paramJointDef.type == JointDef.JointType.FrictionJoint)
  {
    FrictionJointDef localFrictionJointDef = (FrictionJointDef)paramJointDef;
    return jniCreateFrictionJoint(this.addr, localFrictionJointDef.bodyA.addr, localFrictionJointDef.bodyB.addr, localFrictionJointDef.collideConnected, localFrictionJointDef.localAnchorA.x, localFrictionJointDef.localAnchorA.y, localFrictionJointDef.localAnchorB.x, localFrictionJointDef.localAnchorB.y, localFrictionJointDef.maxForce, localFrictionJointDef.maxTorque);
  }
  if (paramJointDef.type == JointDef.JointType.GearJoint)
  {
    GearJointDef localGearJointDef = (GearJointDef)paramJointDef;
    return jniCreateGearJoint(this.addr, localGearJointDef.bodyA.addr, localGearJointDef.bodyB.addr, localGearJointDef.collideConnected, localGearJointDef.joint1.addr, localGearJointDef.joint2.addr, localGearJointDef.ratio);
  }
  if (paramJointDef.type == JointDef.JointType.MouseJoint)
  {
    MouseJointDef localMouseJointDef = (MouseJointDef)paramJointDef;
    return jniCreateMouseJoint(this.addr, localMouseJointDef.bodyA.addr, localMouseJointDef.bodyB.addr, localMouseJointDef.collideConnected, localMouseJointDef.target.x, localMouseJointDef.target.y, localMouseJointDef.maxForce, localMouseJointDef.frequencyHz, localMouseJointDef.dampingRatio);
  }
  if (paramJointDef.type == JointDef.JointType.PrismaticJoint)
  {
    PrismaticJointDef localPrismaticJointDef = (PrismaticJointDef)paramJointDef;
    return jniCreatePrismaticJoint(this.addr, localPrismaticJointDef.bodyA.addr, localPrismaticJointDef.bodyB.addr, localPrismaticJointDef.collideConnected, localPrismaticJointDef.localAnchorA.x, localPrismaticJointDef.localAnchorA.y, localPrismaticJointDef.localAnchorB.x, localPrismaticJointDef.localAnchorB.y, localPrismaticJointDef.localAxisA.x, localPrismaticJointDef.localAxisA.y, localPrismaticJointDef.referenceAngle, localPrismaticJointDef.enableLimit, localPrismaticJointDef.lowerTranslation, localPrismaticJointDef.upperTranslation, localPrismaticJointDef.enableMotor, localPrismaticJointDef.maxMotorForce, localPrismaticJointDef.motorSpeed);
  }
  if (paramJointDef.type == JointDef.JointType.PulleyJoint)
  {
    PulleyJointDef localPulleyJointDef = (PulleyJointDef)paramJointDef;
    return jniCreatePulleyJoint(this.addr, localPulleyJointDef.bodyA.addr, localPulleyJointDef.bodyB.addr, localPulleyJointDef.collideConnected, localPulleyJointDef.groundAnchorA.x, localPulleyJointDef.groundAnchorA.y, localPulleyJointDef.groundAnchorB.x, localPulleyJointDef.groundAnchorB.y, localPulleyJointDef.localAnchorA.x, localPulleyJointDef.localAnchorA.y, localPulleyJointDef.localAnchorB.x, localPulleyJointDef.localAnchorB.y, localPulleyJointDef.lengthA, localPulleyJointDef.lengthB, localPulleyJointDef.ratio);
  }
  if (paramJointDef.type == JointDef.JointType.RevoluteJoint)
  {
    RevoluteJointDef localRevoluteJointDef = (RevoluteJointDef)paramJointDef;
    return jniCreateRevoluteJoint(this.addr, localRevoluteJointDef.bodyA.addr, localRevoluteJointDef.bodyB.addr, localRevoluteJointDef.collideConnected, localRevoluteJointDef.localAnchorA.x, localRevoluteJointDef.localAnchorA.y, localRevoluteJointDef.localAnchorB.x, localRevoluteJointDef.localAnchorB.y, localRevoluteJointDef.referenceAngle, localRevoluteJointDef.enableLimit, localRevoluteJointDef.lowerAngle, localRevoluteJointDef.upperAngle, localRevoluteJointDef.enableMotor, localRevoluteJointDef.motorSpeed, localRevoluteJointDef.maxMotorTorque);
  }
  if (paramJointDef.type == JointDef.JointType.WeldJoint)
  {
    WeldJointDef localWeldJointDef = (WeldJointDef)paramJointDef;
    return jniCreateWeldJoint(this.addr, localWeldJointDef.bodyA.addr, localWeldJointDef.bodyB.addr, localWeldJointDef.collideConnected, localWeldJointDef.localAnchorA.x, localWeldJointDef.localAnchorA.y, localWeldJointDef.localAnchorB.x, localWeldJointDef.localAnchorB.y, localWeldJointDef.referenceAngle);
  }
  if (paramJointDef.type == JointDef.JointType.RopeJoint)
  {
    RopeJointDef localRopeJointDef = (RopeJointDef)paramJointDef;
    return jniCreateRopeJoint(this.addr, localRopeJointDef.bodyA.addr, localRopeJointDef.bodyB.addr, localRopeJointDef.collideConnected, localRopeJointDef.localAnchorA.x, localRopeJointDef.localAnchorA.y, localRopeJointDef.localAnchorB.x, localRopeJointDef.localAnchorB.y, localRopeJointDef.maxLength);
  }
  if (paramJointDef.type == JointDef.JointType.WheelJoint)
  {
    WheelJointDef localWheelJointDef = (WheelJointDef)paramJointDef;
    return jniCreateWheelJoint(this.addr, localWheelJointDef.bodyA.addr, localWheelJointDef.bodyB.addr, localWheelJointDef.collideConnected, localWheelJointDef.localAnchorA.x, localWheelJointDef.localAnchorA.y, localWheelJointDef.localAnchorB.x, localWheelJointDef.localAnchorB.y, localWheelJointDef.localAxisA.x, localWheelJointDef.localAxisA.y, localWheelJointDef.enableMotor, localWheelJointDef.maxMotorTorque, localWheelJointDef.motorSpeed, localWheelJointDef.frequencyHz, localWheelJointDef.dampingRatio);
  }
  return 0L;
}
 

import com.badlogic.gdx.physics.box2d.joints.FrictionJointDef; //导入依赖的package包/类
/**
 * Creates a friction joint.
 * @param spriteA	The first body.
 * @param spriteB	The second body.
 * @param jointDef	The joint definition.
 */
public B2FlxFrictionJoint(B2FlxShape spriteA, B2FlxShape spriteB, FrictionJointDef jointDef)
{
	super(spriteA, spriteB, jointDef);
}