private Path(Path source, Position position, decimal distance)
{
this.StartPosition = source.StartPosition;
this.EndPosition = position;
this.Distance = source.Distance + distance;
this._pathPositions.AddRange(source._pathPositions.Concat(new [] {position}));
}
public IEnumerable<Path> FindPath(Position start, decimal distance)
{
var newPath = new Path(start);
var resultDict = new Dictionary<Position, Path> {{newPath.EndPosition, newPath}};
FindPaths(new Path(start), distance, resultDict);
return resultDict.Values.Where(x => x.Distance > 0).OrderBy(x => x.Distance);
}
public Path(Position start)
{
StartPosition = start;
EndPosition = start;
Distance = 0.0M;
}