/// <summary>
/// The activeTrackLocation needs to be between two nodes on the track, if it is to be valid.
/// Here we find whether indeed it is.
/// </summary>
/// <param name="drawnPathData">The data structure with the information on the drawn path</param>
/// <param name="trackNodeIndex">The index of the track node</param>
/// <returns>The node that will be before a possible new node on the track</returns>
TrainpathNode FindPrevNodeOfActiveTrack(DrawnPathData drawnPathData, int trackNodeIndex)
{
Collection <TrainpathNode> nodesOnTrack = drawnPathData.NodesOnTrack(trackNodeIndex);
// We are given a set of nodes. We know that a part of the path was drawn following those nodes
// All of these parts are on the same track.
// The nodes are ordered in pairs.
for (int i = nodesOnTrack.Count - 1; i > 0; i -= 2)
{
if (activeTrackLocation.IsBetween(nodesOnTrack[i - 1], nodesOnTrack[i]))
{
return(nodesOnTrack[i - 1]);
}
}
return(null);
}
private List <string> StationNamesBetweenNodes(TrainpathNode firstNode, TrainpathNode secondNode)
{
var stationNames = new List <string>();
int tvnIndex = firstNode.NextMainTvnIndex;
if (tvnIndex < 0)
{
return(stationNames);
}
TrackNode tn = trackDB.TrackNodes[tvnIndex];
TrVectorNode tvn = tn.TrVectorNode;
if (tvn == null)
{
return(stationNames);
}
if (tvn.TrItemRefs == null)
{
return(stationNames);
}
foreach (int trackItemIndex in tvn.TrItemRefs)
{
TrItem trItem = trackDB.TrItemTable[trackItemIndex];
if (trItem.ItemType == TrItem.trItemType.trPLATFORM)
{
var traveller = new Traveller(tsectionDat, trackDB.TrackNodes, tn,
trItem.TileX, trItem.TileZ, trItem.X, trItem.Z, Traveller.TravellerDirection.Forward);
if (traveller != null)
{
var platformNode = new TrainpathVectorNode(firstNode, traveller);
if (platformNode.IsBetween(firstNode, secondNode))
{
PlatformItem platform = trItem as PlatformItem;
stationNames.Add(platform.Station);
}
}
}
}
return(stationNames);
}
private List <string> StationNamesBetweenNodes(TrainpathNode firstNode, TrainpathNode secondNode)
{
var stationNames = new List <string>();
int tvnIndex = firstNode.NextMainTvnIndex;
if (tvnIndex < 0)
{
return(stationNames);
}
TrackVectorNode tvn = trackDB.TrackNodes[tvnIndex] as TrackVectorNode;
if (tvn == null)
{
return(stationNames);
}
if (tvn.TrackItemIndices == null)
{
return(stationNames);
}
foreach (int trackItemIndex in tvn.TrackItemIndices)
{
TrackItem trItem = trackDB.TrackItems[trackItemIndex];
if (trItem is PlatformItem)
{
var traveller = new Traveller(tsectionDat, trackDB.TrackNodes, tvn, trItem.Location, Traveller.TravellerDirection.Forward);
if (traveller != null)
{
var platformNode = new TrainpathVectorNode(firstNode, traveller);
if (platformNode.IsBetween(firstNode, secondNode))
{
PlatformItem platform = trItem as PlatformItem;
stationNames.Add(platform.Station);
}
}
}
}
return(stationNames);
}