public void ScaleByteToFloat()
 {
     Assert.That(FloatBytePacker.ScaleByteToFloat(0, byte.MinValue, byte.MaxValue, -1, 1), Is.EqualTo(-1).Within(0.0001f));
     Assert.That(FloatBytePacker.ScaleByteToFloat(127, byte.MinValue, byte.MaxValue, -1, 1), Is.EqualTo(-0.003921569f).Within(0.0001f));
     Assert.That(FloatBytePacker.ScaleByteToFloat(191, byte.MinValue, byte.MaxValue, -1, 1), Is.EqualTo(0.4980392f).Within(0.0001f));
     Assert.That(FloatBytePacker.ScaleByteToFloat(255, byte.MinValue, byte.MaxValue, -1, 1), Is.EqualTo(1).Within(0.0001f));
 }
        // serialization is needed by OnSerialize and by manual sending from authority
        void DeserializeFromReader(NetworkReader reader)
        {
            // put it into a data point immediately
            DataPoint temp = new DataPoint
            {
                // deserialize position
                localPosition = reader.ReadVector3()
            };

            // deserialize rotation
            if (compressRotation == Compression.None)
            {
                // read 3 floats = 16 byte
                float x = reader.ReadSingle();
                float y = reader.ReadSingle();
                float z = reader.ReadSingle();
                temp.localRotation = Quaternion.Euler(x, y, z);
            }
            else if (compressRotation == Compression.Much)
            {
                // read 3 byte. scaling [0,255] to [0,360]
                float x = FloatBytePacker.ScaleByteToFloat(reader.ReadByte(), byte.MinValue, byte.MaxValue, 0, 360);
                float y = FloatBytePacker.ScaleByteToFloat(reader.ReadByte(), byte.MinValue, byte.MaxValue, 0, 360);
                float z = FloatBytePacker.ScaleByteToFloat(reader.ReadByte(), byte.MinValue, byte.MaxValue, 0, 360);
                temp.localRotation = Quaternion.Euler(x, y, z);
            }
            else if (compressRotation == Compression.Lots)
            {
                // read 2 byte, 5 bits per float
                Vector3 xyz = FloatBytePacker.UnpackUShortIntoThreeFloats(reader.ReadUInt16(), 0, 360);
                temp.localRotation = Quaternion.Euler(xyz.x, xyz.y, xyz.z);
            }

            temp.localScale = reader.ReadVector3();

            temp.timeStamp = Time.time;

            // movement speed: based on how far it moved since last time
            // has to be calculated before 'start' is overwritten
            temp.movementSpeed = EstimateMovementSpeed(goal, temp, targetComponent.transform, syncInterval);

            // reassign start wisely
            // -> first ever data point? then make something up for previous one
            //    so that we can start interpolation without waiting for next.
            if (start == null)
            {
                start = new DataPoint
                {
                    timeStamp = Time.time - syncInterval,
                    // local position/rotation for VR support
                    localPosition = targetComponent.transform.localPosition,
                    localRotation = targetComponent.transform.localRotation,
                    localScale    = targetComponent.transform.localScale,
                    movementSpeed = temp.movementSpeed
                };
            }
            // -> second or nth data point? then update previous, but:
            //    we start at where ever we are right now, so that it's
            //    perfectly smooth and we don't jump anywhere
            //
            //    example if we are at 'x':
            //
            //        A--x->B
            //
            //    and then receive a new point C:
            //
            //        A--x--B
            //              |
            //              |
            //              C
            //
            //    then we don't want to just jump to B and start interpolation:
            //
            //              x
            //              |
            //              |
            //              C
            //
            //    we stay at 'x' and interpolate from there to C:
            //
            //           x..B
            //            \ .
            //             \.
            //              C
            //
            else
            {
                float oldDistance = Vector3.Distance(start.localPosition, goal.localPosition);
                float newDistance = Vector3.Distance(goal.localPosition, temp.localPosition);

                start = goal;

                // teleport / lag / obstacle detection: only continue at current
                // position if we aren't too far away
                //
                // // local position/rotation for VR support
                if (Vector3.Distance(targetComponent.transform.localPosition, start.localPosition) < oldDistance + newDistance)
                {
                    start.localPosition = targetComponent.transform.localPosition;
                    start.localRotation = targetComponent.transform.localRotation;
                    start.localScale    = targetComponent.transform.localScale;
                }
            }

            // set new destination in any case. new data is best data.
            goal = temp;
        }