public static SectorGraph BuildFrom(MapData map)
{
var linesWithVertices = BuildLinesWithStartingVertex(map);
List <LogicalSector> logicalSectors = new List <LogicalSector>();
List <SubSector> subSectors = new List <SubSector>();
foreach (var lineGroup in linesWithVertices.GroupBy(pair => pair.Line.Side.Sector).OrderBy(g => g.Key))
{
var sector = map.Sectors[lineGroup.Key];
var logicalSector = new LogicalSector(lineGroup.Key, sector);
var sectorLines = new LinkedList <LineAndVertices>(lineGroup);
while (sectorLines.Any())
{
var(startVertexId, lastVertexId, line) = sectorLines.TakeFirst();
var subSectorLines = new List <Line> {
line
};
while (sectorLines.Any() && lastVertexId != startVertexId)
{
(_, lastVertexId, line) = sectorLines.TakeFirst(pair => pair.StartVertexId == lastVertexId);
subSectorLines.Add(line);
}
var ss = new SubSector(lineGroup.Key, logicalSector, subSectorLines);
logicalSector.Add(ss);
subSectors.Add(ss);
}
logicalSectors.Add(logicalSector);
}
return(new SectorGraph(map, logicalSectors, subSectors));
}
public SubSector(int sectorIndex, LogicalSector parent, IEnumerable <Line> lines)
{
SectorIndex = sectorIndex;
ParentSector = parent;
_lines.AddRange(lines);
}