public void Clone()
        {
            var e = new LinearAccelerationEffector
              {
            DirectionParameter = "D",
            SpeedParameter = "S",
            AccelerationParameter = "A",
            Enabled = false,
              };

              var c = (LinearAccelerationEffector)e.Clone();

              Assert.AreEqual(e.DirectionParameter, c.DirectionParameter);
              Assert.AreEqual(e.SpeedParameter, c.SpeedParameter);
              Assert.AreEqual(e.AccelerationParameter, c.AccelerationParameter);
              Assert.AreEqual(e.Enabled, c.Enabled);
        }