public static FixedFrictionJoint CreateFixedFrictionJoint(World world, Body body, Vector2 bodyAnchor)
{
FixedFrictionJoint frictionJoint = new FixedFrictionJoint(body, bodyAnchor);
world.AddJoint(frictionJoint);
return frictionJoint;
}
public static Joint CopyJoint(Joint joint, Body bodyA, Body bodyB, World world)
{
Joint newJoint = null;
switch (joint.JointType)
{
case JointType.Angle:
newJoint = JointFactory.CreateAngleJoint(world, bodyA, bodyB);
break;
case JointType.Distance:
newJoint = new DistanceJoint(bodyA, bodyB, bodyA.WorldCenter, bodyB.WorldCenter);
break;
case JointType.FixedAngle:
newJoint = new FixedAngleJoint(bodyA);
break;
case JointType.FixedDistance:
newJoint = new FixedDistanceJoint(bodyA, bodyA.WorldCenter, Vector2.Zero);
break;
case JointType.FixedFriction:
newJoint = new FixedFrictionJoint(bodyA, bodyA.WorldCenter);
break;
case JointType.FixedPrismatic:
var fpJoint = joint as FixedPrismaticJoint;
var fpAxis = fpJoint.LocalXAxis1;
newJoint = new FixedPrismaticJoint(bodyA, bodyA.WorldCenter, fpAxis);
break;
case JointType.FixedRevolute:
newJoint = new FixedRevoluteJoint(bodyA, bodyA.WorldCenter, Vector2.Zero);
break;
case JointType.Friction:
newJoint = new FrictionJoint(bodyA, bodyB, bodyA.WorldCenter, bodyB.WorldCenter);
break;
case JointType.Line:
var lineJoint = joint as LineJoint;
var axis = lineJoint.LocalXAxis;
newJoint = new LineJoint(bodyA, bodyB, bodyA.WorldCenter, axis);
break;
case JointType.Prismatic:
var pJoint = joint as PrismaticJoint;
var pAxis = pJoint.LocalXAxis1;
newJoint = new PrismaticJoint(bodyA, bodyB, bodyA.WorldCenter, bodyB.WorldCenter, pAxis);
((PrismaticJoint)newJoint).LimitEnabled = pJoint.LimitEnabled;
((PrismaticJoint)newJoint).MotorEnabled = pJoint.MotorEnabled;
((PrismaticJoint)newJoint).MaxMotorForce = pJoint.MaxMotorForce;
((PrismaticJoint)newJoint).MotorSpeed = pJoint.MotorSpeed;
((PrismaticJoint)newJoint).LowerLimit = pJoint.LowerLimit;
((PrismaticJoint)newJoint).UpperLimit = pJoint.UpperLimit;
((PrismaticJoint)newJoint).ReferenceAngle = pJoint.ReferenceAngle;
((PrismaticJoint)newJoint).LocalXAxis1 = pJoint.LocalXAxis1;
break;
case JointType.Pulley:
var pulleyJoint = joint as PulleyJoint;
var ratio = pulleyJoint.Ratio;
newJoint = new PulleyJoint(bodyA, bodyB, Vector2.Zero, Vector2.Zero, bodyA.WorldCenter, bodyB.WorldCenter, ratio);
break;
case JointType.Revolute:
newJoint = new RevoluteJoint(bodyA, bodyB, bodyA.WorldCenter, bodyB.WorldCenter);
break;
case JointType.Slider:
var sliderJoint = joint as SliderJoint;
var minLength = sliderJoint.MinLength;
var maxLength = sliderJoint.MaxLength;
newJoint = new SliderJoint(bodyA, bodyB, bodyA.WorldCenter, bodyB.WorldCenter, minLength, maxLength);
break;
case JointType.Weld:
newJoint = new WeldJoint(bodyA, bodyB, bodyA.WorldCenter, bodyB.WorldCenter);
break;
}
var data = new FarseerJointUserData();
data.BodyAName = ((FarseerJointUserData) joint.UserData).BodyAName;
data.BodyBName = ((FarseerJointUserData) joint.UserData).BodyBName;
joint.UserData = data;
return newJoint;
}
