/// <summary>Creates a populated <see cref="Collection{T}"/> of <see cref="Landmark"/>
/// instances.</summary>
/// <param name="board">The board on which the collection of landmarks is to be instantiated.</param>
/// <param name="landmarkCoords">Board coordinates of the desired landmarks</param>
public static ILandmarkCollection CreateLandmarks(
IHexBoard <IHex> board,
IFastList <HexCoords> landmarkCoords
)
{
if (landmarkCoords == null)
{
throw new ArgumentNullException("landmarkCoords");
}
ILandmarkCollection tempLandmarks = null, landmarks = null;
try {
tempLandmarks = new LandmarkCollection((
from coords in landmarkCoords.AsParallel().AsOrdered()
where board.IsOnboard(coords)
select new Landmark(coords, board)
).ToList <ILandmark>());
landmarks = tempLandmarks;
tempLandmarks = null;
} finally { if (tempLandmarks != null)
{
tempLandmarks.Dispose();
}
}
return(landmarks);
}
/// <summary>Creates a populated <see cref="Collection{T}"/> of <see cref="Landmark"/>
/// instances.</summary>
/// <param name="board">The board on which the collection of landmarks is to be instantiated.</param>
/// <param name="landmarkCoords">Board coordinates of the desired landmarks</param>
public static ILandmarkCollection New(
INavigableBoard board,
IFastList <HexCoords> landmarkCoords
)
{
int degreeOfParallelism = Math.Max(1, Environment.ProcessorCount - 1);
var query = from coords in landmarkCoords.AsParallel()
.WithDegreeOfParallelism(degreeOfParallelism)
.WithMergeOptions(ParallelMergeOptions.NotBuffered)
#if UseSortedDictionary
select Landmark.DictionaryPriorityQueueLandmark(coords, board);
#else
select Landmark.HotPriorityQueueLandmark(coords, board);
#endif
return(Extensions.InitializeDisposable(() => new LandmarkCollection(query)));
}