/// <summary>
/// Run through the track and for each node find the direction on the node
/// </summary>
void FindNodeOrientations()
{
// Node orientations are determined based on the track leading to the node
// This makes it easier to extend the path (in case the last node is not known)
// Only for the start node this is not possible. But hey, that is anyway up to the user.
// start of path
TrainpathNode currentMainNode = FirstNode;
while (currentMainNode.NextMainNode != null)
{
// If there is a siding starting here, go through it until it ends.
TrainpathNode currentSidingNode = currentMainNode;
while (currentSidingNode.NextSidingNode != null)
{
TrainpathNode nextSidingNode = currentSidingNode.NextSidingNode;
nextSidingNode.DetermineOrientation(currentSidingNode, currentSidingNode.NextSidingTvnIndex);
currentSidingNode = nextSidingNode;
}
// In case a main node has two nodes leading to it (siding and main), then
// the main track will override.
TrainpathNode nextMainNode = currentMainNode.NextMainNode;
nextMainNode.DetermineOrientation(currentMainNode, currentMainNode.NextMainTvnIndex);
currentMainNode = nextMainNode;
}
if (currentMainNode is TrainpathVectorNode)
{ // Only vector nodes can be a real end!
HasEnd = true;
currentMainNode.NodeType = TrainpathNodeType.End;
}
else
{
HasEnd = false;
}
//Determine direction of first point. By using second point, the direction will be reversed
FirstNode.DetermineOrientation(FirstNode.NextMainNode, FirstNode.NextMainTvnIndex);
FirstNode.ReverseOrientation();
}
