/// <summary>
/// Check if after this node a disambiguity node needs to be added
/// </summary>
/// <param name="currentNode"></param>
public void AddDisambiguityNodeIfNeeded(TrainpathNode currentNode)
{
//Check if we need to add an disambiguity node
TrainpathJunctionNode currentNodeAsJunction = currentNode as TrainpathJunctionNode;
if ((currentNodeAsJunction != null) &&
(currentNode.NextMainNode != null) &&
(currentNode.NextMainNode is TrainpathJunctionNode) &&
(currentNodeAsJunction.IsSimpleSidingStart())
)
{
TrainpathVectorNode halfwayNode = CreateHalfWayNode(currentNodeAsJunction, currentNodeAsJunction.NextMainTvnIndex);
halfwayNode.PrevNode = currentNode;
AddIntermediateMainNode(halfwayNode);
}
}
/// <summary>
/// Add an additional node starting at the given node, following the TvnIndex,
/// but take care of a possible need for disambiguity.
/// </summary>
/// <param name="lastNode">Node after which a new node needs to be added</param>
/// <param name="tvnIndex">TrackVectorNode index of the track the path needs to be on</param>
/// <param name="isMainPath">Do we add the node to the main path or not</param>
/// <returns>The newly created path node</returns>
public TrainpathNode AddAdditionalNode(TrainpathNode lastNode, int tvnIndex, bool isMainPath)
{
TrainpathVectorNode lastNodeAsVector = lastNode as TrainpathVectorNode;
if (lastNodeAsVector != null)
{
return(AddAdditionalJunctionNode(lastNode, lastNodeAsVector.TvnIndex, isMainPath));
}
TrainpathJunctionNode junctionNode = lastNode as TrainpathJunctionNode;
if (junctionNode.IsSimpleSidingStart())
{ // start of a simple siding. So the next node should be a node to remove disambiguity.
TrainpathVectorNode halfwayNode = CreateHalfWayNode(junctionNode, tvnIndex);
return(AddAdditionalVectorNode(junctionNode, halfwayNode, isMainPath));
}
else
{
return(AddAdditionalJunctionNode(junctionNode, tvnIndex, isMainPath));
}
}