private static CollectionView CreateCollectionViewForEnumeration <TEnum>() where TEnum : struct
{
return(EnumFactotum
.GetAllValues <TEnum>()
.Select(value => DescriptiveItem.Create(value, ((Enum)(object)value).GetTranslation()))
.ToArray()
.ToCollectionView());
}
private static InternalCastlingInfo2[] InitializeKingCastlingInfos()
{
var castlingTypes = EnumFactotum.GetAllValues <CastlingType>();
var result = new InternalCastlingInfo2[(int)castlingTypes.Max() + 1];
foreach (var castlingType in castlingTypes)
{
var info = ChessHelper.CastlingTypeToInfoMap2[castlingType];
var index = GetCastlingTypeArrayIndexInternal(castlingType);
result[index] = new InternalCastlingInfo2(
info.KingMove,
new Bitboard(info.EmptySquares.Concat(info.PassedSquare.AsArray())));
}
return(result);
}
private static Bitboard[] InitializeKingAttacksOrMoves()
{
var result = new Bitboard[ChessConstants.SquareCount * ChessConstants.SquareCount];
var directions = EnumFactotum.GetAllValues <ShiftDirection>();
for (var squareIndex = 0; squareIndex < ChessConstants.SquareCount; squareIndex++)
{
var sourceBitboard = Bitboard.FromSquareIndex(squareIndex);
var movesBitboard = directions
.Select(sourceBitboard.Shift)
.Aggregate(Bitboard.None, (current, bitboard) => current | bitboard);
result[squareIndex] = movesBitboard;
}
return(result);
}