internal bool IsThreatened(Piece piece)
{
Position position = piece.Position;
int row = position.Row;
int col = position.Col;
while (row > 0 && col > 0 && Board.GetPiece(row - 1, col - 1) is Empty)
{
row--;
col--;
}
if (row > 0 && col > 0 && IsThreat(piece, Board.GetPiece(row - 1, col - 1)))
{
return(true);
}
row = position.Row;
col = position.Col;
while (row > 0 && col < 7 && Board.GetPiece(row - 1, col + 1) is Empty)
{
row--;
col++;
}
if (row > 0 && col < 7 && IsThreat(piece, Board.GetPiece(row - 1, col + 1)))
{
return(true);
}
row = position.Row;
col = position.Col;
while (row < 7 && col > 0 && Board.GetPiece(row + 1, col - 1) is Empty)
{
row++;
col--;
}
if (row < 7 && col > 0 && IsThreat(piece, Board.GetPiece(row + 1, col - 1)))
{
return(true);
}
row = position.Row;
col = position.Col;
while (row < 7 && col < 7 && Board.GetPiece(row + 1, col + 1) is Empty)
{
row++;
col++;
}
if (row < 7 && col < 7 && IsThreat(piece, Board.GetPiece(row + 1, col + 1)))
{
return(true);
}
row = position.Row;
col = position.Col;
while (col > 0 && Board.GetPiece(row, col - 1) is Empty)
{
col--;
}
if (col > 0 && IsThreat(piece, Board.GetPiece(row, col - 1)))
{
return(true);
}
col = position.Col;
while (col < 7 && Board.GetPiece(row, col + 1) is Empty)
{
col++;
}
if (col < 7 && IsThreat(piece, Board.GetPiece(row, col + 1)))
{
return(true);
}
col = position.Col;
while (row > 0 && Board.GetPiece(row - 1, col) is Empty)
{
row--;
}
if (row > 0 && IsThreat(piece, Board.GetPiece(row - 1, col)))
{
return(true);
}
row = position.Row;
while (row < 7 && Board.GetPiece(row + 1, col) is Empty)
{
row++;
}
if (row < 7 && IsThreat(piece, Board.GetPiece(row + 1, col)))
{
return(true);
}
row = position.Row;
if (row + 2 <= 7 && col - 1 >= 0 && IsThreat(piece, Board.GetPiece(row + 2, col - 1)))
{
return(true);
}
if (row + 2 <= 7 && col + 1 <= 7 && IsThreat(piece, Board.GetPiece(row + 2, col + 1)))
{
return(true);
}
if (row - 2 >= 0 && col - 1 >= 0 && IsThreat(piece, Board.GetPiece(row - 2, col - 1)))
{
return(true);
}
if (row - 2 >= 0 && col + 1 <= 7 && IsThreat(piece, Board.GetPiece(row - 2, col + 1)))
{
return(true);
}
if (row + 1 <= 7 && col - 2 >= 0 && IsThreat(piece, Board.GetPiece(row + 1, col - 2)))
{
return(true);
}
if (row + 1 <= 7 && col + 2 <= 7 && IsThreat(piece, Board.GetPiece(row + 1, col + 2)))
{
return(true);
}
if (row - 1 >= 0 && col - 2 >= 0 && IsThreat(piece, Board.GetPiece(row - 1, col - 2)))
{
return(true);
}
if (row - 1 >= 0 && col + 2 <= 7 && IsThreat(piece, Board.GetPiece(row - 1, col + 2)))
{
return(true);
}
return(false);
}
internal string PrintBoard()
{
string boardString = " A B C D E F G H\n";
for (int i = 0; i < 8; i++)
{
boardString += 8 - i + " ";
for (int j = 0; j < 8; j++)
{
switch (Board.GetPiece(i, j).Enum)
{
case PieceEnum.BlackBishop:
boardString += "BB ";
break;
case PieceEnum.BlackKing:
boardString += "BK ";
break;
case PieceEnum.BlackKingNoCastle:
boardString += "BK ";
break;
case PieceEnum.BlackKnight:
boardString += "BN ";
break;
case PieceEnum.BlackPawn:
boardString += "BP ";
break;
case PieceEnum.BlackPawnEnPassant:
boardString += "BP ";
break;
case PieceEnum.BlackQueen:
boardString += "BQ ";
break;
case PieceEnum.BlackRook:
boardString += "BR ";
break;
case PieceEnum.WhiteBishop:
boardString += "WB ";
break;
case PieceEnum.WhiteKing:
boardString += "WK ";
break;
case PieceEnum.WhiteKingNoCastle:
boardString += "WK ";
break;
case PieceEnum.WhiteKnight:
boardString += "WN ";
break;
case PieceEnum.WhitePawn:
boardString += "WP ";
break;
case PieceEnum.WhitePawnEnPassant:
boardString += "WP ";
break;
case PieceEnum.WhiteQueen:
boardString += "WQ ";
break;
case PieceEnum.WhiteRook:
boardString += "WR ";
break;
default:
boardString += " ";
break;
}
}
boardString += " " + (8 - i) + "\n";
}
boardString += " A B C D E F G H";
return(boardString);
}