public override string ToString()
{
var pieceFile = MovingPieceService.FileFromIdx(SquareIndex);
var pawnDescription = $"{Color.AsString()}";
var pieceDescription = $"Piece";
var pawnPlacement = $"on {DisplayHelpers.ToSquareString(SquareIndex)} ";
var expectedIndexes = MovingPieceService.GetSetBits(Expected);
var playerOccupancy = MovingPieceService.GetSetBits(PlayerObstructions);
var opponentOccupancy = MovingPieceService.GetSetBits(OpponentObstructions);
var strMoves =
expectedIndexes.Any()
? $"move to {string.Join(", ", expectedIndexes.Select(DisplayHelpers.ToSquareString))}"
: "[no moves expected]";
var strPlayerOccupancy =
playerOccupancy.Any()
? string.Join(", ", playerOccupancy.Select(DisplayHelpers.ToSquareString))
: "[no player pieces]";
var strOpponentOccupancy =
opponentOccupancy.Any()
? string.Join(", ", opponentOccupancy.Select(DisplayHelpers.ToSquareString))
: "[no opponent pieces]";
var attackedOpponentPieces = opponentOccupancy.Where(x => MovingPieceService.FileFromIdx(x) != pieceFile);
var strAttack = attackedOpponentPieces.Any()
? $"- Attack pieces on {string.Join(", ", attackedOpponentPieces.Select(DisplayHelpers.ToSquareString))}"
: "[no attacked pieces]";
return($"{pawnDescription} {pieceDescription} on {pawnPlacement} should be able to:{Environment.NewLine}" +
$"{strMoves}{Environment.NewLine}" +
$"{strAttack}{Environment.NewLine}" +
$"when players pieces are at {strPlayerOccupancy} and opponent pieces are at {strOpponentOccupancy}.");
}
private static IEnumerable <MoveTestCase> GetTestCases(Color color, ushort squareIndex)
{
var moveSet = GetPawnShift(squareIndex, color);
var setSquares = MovingPieceService.GetSetBits(moveSet);
var permutations = MovingPieceService.GetAllPermutationsOfSetBits(setSquares, 0, 0);
var testCases = new List <MoveTestCase>();
foreach (var block in permutations)
{
var obstructionBoards = GetMovesFromObstructions(color, block, squareIndex);
testCases.Add(new MoveTestCase(squareIndex, color, 0, obstructionBoards.Occupancy,
obstructionBoards.MoveBoard));
}
return(testCases);
}