public static void PrintChessboard(Chessboard chessboard, bool[,] possiblePositions)
{
ConsoleColor originBackground = Console.BackgroundColor;
ConsoleColor changedBackground = ConsoleColor.DarkGray;
for (int i = 0; i < chessboard.Rows; i++)
{
Console.Write(8 - i + " ");
for (int j = 0; j < chessboard.Columns; j++)
{
if (possiblePositions[i, j])
{
Console.BackgroundColor = changedBackground;
}
else
{
Console.BackgroundColor = originBackground;
}
PrintChessPiece(chessboard.ChessPiece(i, j));
Console.BackgroundColor = originBackground;
}
Console.WriteLine();
}
Console.WriteLine();
Console.WriteLine(" A B C D E F G H");
Console.BackgroundColor = originBackground;
}
public void DestinyPositionValidate(Position origin, Position destiny)
{
if (!Chessboard.ChessPiece(origin).PossibleMovement(destiny))
{
throw new ChessboardException("Invalid destiny position!");
}
}
public override bool[,] PossibleMovements()
{
bool[,] match = new bool[Chessboard.Rows, Chessboard.Columns];
Position position = new Position(0, 0);
// Up-Left
position.SetValues(Position.Row - 1, Position.Column - 1);
while (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
if (Chessboard.ChessPiece(position) != null && Chessboard.ChessPiece(position).Color != Color)
{
break;
}
position.SetValues(position.Row - 1, position.Column - 1);
}
// Up-Right
position.SetValues(Position.Row - 1, Position.Column + 1);
while (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
if (Chessboard.ChessPiece(position) != null && Chessboard.ChessPiece(position).Color != Color)
{
break;
}
position.SetValues(position.Row - 1, position.Column + 1);
}
// Down-Right
position.SetValues(Position.Row + 1, Position.Column + 1);
while (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
if (Chessboard.ChessPiece(position) != null && Chessboard.ChessPiece(position).Color != Color)
{
break;
}
position.SetValues(position.Row + 1, position.Column + 1);
}
// Down-Left
position.SetValues(Position.Row + 1, Position.Column - 1);
while (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
if (Chessboard.ChessPiece(position) != null && Chessboard.ChessPiece(position).Color != Color)
{
break;
}
position.SetValues(position.Row + 1, position.Column - 1);
}
return(match);
}
public void DoTheMove(Position origin, Position destiny)
{
ChessPiece capturedPiece = MakeTheMove(origin, destiny);
if (IsOnCheck(CurrentPlayer))
{
UndoMove(origin, destiny, capturedPiece);
throw new ChessboardException("You cannot put yourself on check!");
}
ChessPiece cp = Chessboard.ChessPiece(destiny);
// #SpecialMove Promotion
if (cp is Pawn)
{
if ((cp.Color == Color.White && destiny.Row == 0) || (cp.Color == Color.Black && destiny.Row == 7))
{
cp = Chessboard.RemoveChessPiece(destiny);
ChessPieces.Remove(cp);
ChessPiece queen = new Queen(cp.Color, Chessboard);
Chessboard.ChessPiecePosition(queen, destiny);
ChessPieces.Add(queen);
}
}
if (IsOnCheck(Opponent(CurrentPlayer)))
{
Check = true;
}
else
{
Check = false;
}
if (IsOnCheckmate(Opponent(CurrentPlayer)))
{
GameOver = true;
}
else
{
Turn++;
ChangePlayer();
}
// #SpecialMove En Passant
if (cp is Pawn && (destiny.Row == origin.Row - 2 || destiny.Row == origin.Row + 2))
{
VulnerableEnPassant = cp;
}
else
{
VulnerableEnPassant = null;
}
}
public static void PrintChessboard(Chessboard chessboard)
{
for (int i = 0; i < chessboard.Rows; i++)
{
Console.Write(8 - i + " ");
for (int j = 0; j < chessboard.Columns; j++)
{
PrintChessPiece(chessboard.ChessPiece(i, j));
}
Console.WriteLine();
}
Console.WriteLine();
Console.WriteLine(" A B C D E F G H");
}
public void OriginPositionValidate(Position position)
{
if (Chessboard.ChessPiece(position) == null)
{
throw new ChessboardException("There is no chess piece on this position!");
}
if (CurrentPlayer != Chessboard.ChessPiece(position).Color)
{
throw new ChessboardException("The origin chess piece is not yours!");
}
if (!Chessboard.ChessPiece(position).IsTherePossibleMovements())
{
throw new ChessboardException("There is no possible movements to this origin chess piece!");
}
}
public override bool[,] PossibleMovements()
{
bool[,] match = new bool[Chessboard.Rows, Chessboard.Columns];
Position position = new Position(0, 0);
// Up
position.SetValues(Position.Row - 1, Position.Column);
if (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
}
// Diagonal Up-Right
position.SetValues(Position.Row - 1, Position.Column + 1);
if (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
}
// Right
position.SetValues(Position.Row, Position.Column + 1);
if (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
}
// Diagonal Down-Right
position.SetValues(Position.Row + 1, Position.Column + 1);
if (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
}
// Down
position.SetValues(Position.Row + 1, Position.Column);
if (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
}
// Diagonal Down-Left
position.SetValues(Position.Row + 1, Position.Column - 1);
if (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
}
// Left
position.SetValues(Position.Row, Position.Column - 1);
if (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
}
// Diagonal Up-Left
position.SetValues(Position.Row - 1, Position.Column - 1);
if (Chessboard.ValidPosition(position) && CanMove(position))
{
match[position.Row, position.Column] = true;
}
// #SpecialMove Castle
if (QuantityMovements == 0 && !Game.Check)
{
// #SpecialMove Small Castle
Position posR1 = new Position(Position.Row, Position.Column + 3);
if (TestRookToCastle(posR1))
{
Position p1 = new Position(Position.Row, Position.Column + 1);
Position p2 = new Position(Position.Row, Position.Column + 2);
if (Chessboard.ChessPiece(p1) == null && Chessboard.ChessPiece(p2) == null)
{
match[Position.Row, Position.Column + 2] = true;
}
}
// #SpecialMove Big Castle
Position posR2 = new Position(Position.Row, Position.Column - 4);
if (TestRookToCastle(posR2))
{
Position p1 = new Position(Position.Row, Position.Column - 1);
Position p2 = new Position(Position.Row, Position.Column - 2);
Position p3 = new Position(Position.Row, Position.Column - 3);
if (Chessboard.ChessPiece(p1) == null && Chessboard.ChessPiece(p2) == null && Chessboard.ChessPiece(p3) == null)
{
match[Position.Row, Position.Column - 2] = true;
}
}
}
return(match);
}
private bool TestRookToCastle(Position position)
{
ChessPiece cp = Chessboard.ChessPiece(position);
return(cp != null && cp is Rook && cp.Color == Color && cp.QuantityMovements == 0);
}
private bool CanMove(Position position)
{
ChessPiece cp = Chessboard.ChessPiece(position);
return(cp == null || cp.Color != Color);
}
public override bool[,] PossibleMovements()
{
bool[,] match = new bool[Chessboard.Rows, Chessboard.Columns];
Position position = new Position(0, 0);
if (Color == Color.White)
{
position.SetValues(Position.Row - 1, Position.Column);
if (Chessboard.ValidPosition(position) && Free(position))
{
match[position.Row, position.Column] = true;
}
position.SetValues(Position.Row - 2, Position.Column);
if (Chessboard.ValidPosition(position) && Free(position) && QuantityMovements == 0)
{
match[position.Row, position.Column] = true;
}
position.SetValues(Position.Row - 1, Position.Column - 1);
if (Chessboard.ValidPosition(position) && IsThereEnemy(position))
{
match[position.Row, position.Column] = true;
}
position.SetValues(Position.Row - 1, Position.Column + 1);
if (Chessboard.ValidPosition(position) && IsThereEnemy(position))
{
match[position.Row, position.Column] = true;
}
// #SpecialMove En Passant
if (Position.Row == 3)
{
Position left = new Position(Position.Row, Position.Column - 1);
if (Chessboard.ValidPosition(left) && IsThereEnemy(left) && Chessboard.ChessPiece(left) == ChessMatch.VulnerableEnPassant)
{
match[left.Row - 1, left.Column] = true;
}
Position right = new Position(Position.Row, Position.Column + 1);
if (Chessboard.ValidPosition(right) && IsThereEnemy(right) && Chessboard.ChessPiece(right) == ChessMatch.VulnerableEnPassant)
{
match[right.Row - 1, right.Column] = true;
}
}
}
else
{
position.SetValues(Position.Row + 1, Position.Column);
if (Chessboard.ValidPosition(position) && Free(position))
{
match[position.Row, position.Column] = true;
}
position.SetValues(Position.Row + 2, Position.Column);
if (Chessboard.ValidPosition(position) && Free(position) && QuantityMovements == 0)
{
match[position.Row, position.Column] = true;
}
position.SetValues(Position.Row + 1, Position.Column - 1);
if (Chessboard.ValidPosition(position) && IsThereEnemy(position))
{
match[position.Row, position.Column] = true;
}
position.SetValues(Position.Row + 1, Position.Column + 1);
if (Chessboard.ValidPosition(position) && IsThereEnemy(position))
{
match[position.Row, position.Column] = true;
}
// #SpecialMove En Passant
if (Position.Row == 4)
{
Position left = new Position(Position.Row, Position.Column - 1);
if (Chessboard.ValidPosition(left) && IsThereEnemy(left) && Chessboard.ChessPiece(left) == ChessMatch.VulnerableEnPassant)
{
match[left.Row + 1, left.Column] = true;
}
Position right = new Position(Position.Row, Position.Column + 1);
if (Chessboard.ValidPosition(right) && IsThereEnemy(right) && Chessboard.ChessPiece(right) == ChessMatch.VulnerableEnPassant)
{
match[right.Row + 1, right.Column] = true;
}
}
}
return(match);
}
private bool Free(Position position)
{
return(Chessboard.ChessPiece(position) == null);
}
private bool IsThereEnemy(Position position)
{
ChessPiece cp = Chessboard.ChessPiece(position);
return(cp != null && cp.Color != Color);
}