public DistanceJoint(IWorldPool argWorld, DistanceJointDef def)
: base(argWorld, def)
{
LocalAnchorA = def.LocalAnchorA.Clone();
LocalAnchorB = def.LocalAnchorB.Clone();
Length = def.Length;
Impulse = 0.0f;
FrequencyHz = def.FrequencyHz;
DampingRatio = def.DampingRatio;
Gamma = 0.0f;
Bias = 0.0f;
}