Box2DX.Dynamics.PulleyJoint.PulleyJoint C# (CSharp) Method

        public PulleyJoint(PulleyJointDef def)
            : base(def)
        {
            _ground = _body1.GetWorld().GetGroundBody();
            _groundAnchor1 = def.GroundAnchor1 - _ground.GetTransform().position;
            _groundAnchor2 = def.GroundAnchor2 - _ground.GetTransform().position;
            _localAnchor1 = def.LocalAnchor1;
            _localAnchor2 = def.LocalAnchor2;

            Box2DXDebug.Assert(def.Ratio != 0.0f);
            _ratio = def.Ratio;

            _constant = def.Length1 + _ratio * def.Length2;

            _maxLength1 = Common.Math.Min(def.MaxLength1, _constant - _ratio * PulleyJoint.MinPulleyLength);
            _maxLength2 = Common.Math.Min(def.MaxLength2, (_constant - PulleyJoint.MinPulleyLength) / _ratio);

            _impulse = 0.0f;
            _limitImpulse1 = 0.0f;
            _limitImpulse2 = 0.0f;
        }