void WriteTransform(BitStream stream, MyEntity entity, Vector3D? deltaPosBase, bool lowPrecisionOrientation)
{
var matrix = entity.WorldMatrix;
stream.WriteBool(deltaPosBase == null);
if (deltaPosBase == null)
{
stream.Write(matrix.Translation); // 24 B
}
else
{
stream.Write((Vector3)(matrix.Translation - deltaPosBase.Value)); // 6 B
}
var orientation = Quaternion.CreateFromForwardUp(matrix.Forward, matrix.Up);
stream.WriteBool(lowPrecisionOrientation);
if (lowPrecisionOrientation)
{
stream.WriteQuaternionNormCompressed(orientation); // 29b
}
else
{
stream.WriteQuaternionNorm(orientation); // 52b
}
}
