/// <summary>
/// Link the various nodes to each other. Do some initial processing on the path, like finding linking TVNs
/// and determining whether junctions are facing or not.
/// </summary>
/// <param name="patFile">Patfile object containing the various unprocessed Track Path Nodes</param>
/// <param name="Nodes">The list of as-of-yet unlinked processed path nodes</param>
static private void LinkNodes(PathFile patFile, List <TrainpathNode> Nodes)
{
// Connect the various nodes to each other
for (int i = 0; i < Nodes.Count; i++)
{
TrainpathNode node = Nodes[i];
TrPathNode tpn = patFile.TrPathNodes[i];
// find TvnIndex to next main node.
if (tpn.HasNextMainNode)
{
node.NextMainNode = Nodes[(int)tpn.nextMainNode];
node.NextMainNode.PrevNode = node;
node.NextMainTvnIndex = node.FindTvnIndex(node.NextMainNode);
}
// find TvnIndex to next siding node
if (tpn.HasNextSidingNode)
{
node.NextSidingNode = Nodes[(int)tpn.nextSidingNode];
if (node.NextSidingNode.PrevNode == null)
{
node.NextSidingNode.PrevNode = node;
}
node.NextSidingTvnIndex = node.FindTvnIndex(node.NextSidingNode);
}
if (node.NextMainNode != null && node.NextSidingNode != null)
{
node.NodeType = TrainpathNodeType.SidingStart;
}
}
}
