// Update this instance based on another instance
// this avoid allocation such as using Copy constructor
internal void UpdateFrom(TrackCircuitPosition source)
{
TrackCircuitSectionIndex = source.TrackCircuitSectionIndex;
Direction = source.Direction;
Offset = source.Offset;
RouteListIndex = source.RouteListIndex;
TrackNode = source.TrackNode;
DistanceTravelled = source.DistanceTravelled;
}
/// <summary>
/// Copy constructor
/// </summary>
public TrackCircuitPosition(TrackCircuitPosition source, bool reverse = false)
{
if (null == source)
{
throw new ArgumentNullException(nameof(source));
}
TrackCircuitSectionIndex = source.TrackCircuitSectionIndex;
Direction = reverse ? source.Direction.Reverse() : source.Direction;
Offset = source.Offset;
RouteListIndex = source.RouteListIndex;
TrackNode = source.TrackNode;
DistanceTravelled = source.DistanceTravelled;
}
// Restore
public void RestorePresentPosition(BinaryReader inf, Train train)
{
if (null == train)
{
throw new ArgumentNullException(nameof(train));
}
if (null == inf)
{
throw new ArgumentNullException(nameof(inf));
}
TrackNode tn = train.FrontTDBTraveller.TN;
float offset = train.FrontTDBTraveller.TrackNodeOffset;
TrackDirection direction = (TrackDirection)train.FrontTDBTraveller.Direction;
TrackCircuitPosition tempPosition = new TrackCircuitPosition();
tempPosition.SetPosition(tn.TrackCircuitCrossReferences, offset, direction);
TrackCircuitSectionIndex = inf.ReadInt32();
Direction = (TrackDirection)inf.ReadInt32();
Offset = inf.ReadSingle();
RouteListIndex = inf.ReadInt32();
TrackNode = inf.ReadInt32();
DistanceTravelled = inf.ReadSingle();
float offsetDif = Math.Abs(Offset - tempPosition.Offset);
if (TrackCircuitSectionIndex != tempPosition.TrackCircuitSectionIndex ||
(TrackCircuitSectionIndex == tempPosition.TrackCircuitSectionIndex && offsetDif > 5.0f))
{
Trace.TraceWarning("Train {0} restored at different present position : was {1} - {3}, is {2} - {4}",
train.Number, TrackCircuitSectionIndex, tempPosition.TrackCircuitSectionIndex,
Offset, tempPosition.Offset);
}
}