/// <summary>
/// Implements the possibles movements
/// </summary>
/// <returns>Possibles movements</returns>
public override bool[,] PossibleMovements()
{
bool[,] possiblesMovements = new bool[Board.Rows, Board.Columns];
Position position = new Position(0, 0);
for (int i = 0; i < Board.Rows; i++)
{
for (int j = 0; j < Board.Columns; j++)
{
position.SetValues(i, j);
if (Color is Color.White)
{
if ((Board.IsPositionValid(position) && CanMove(position) && Position != null) && (
(!Board.ExistsPiece(position) && Position.Row - i == 1 && Position.Column == j) ||
(!Board.ExistsPiece(position) && (NumberOfMovements < 1) && Position.Row - i == 2 && Position.Column == j) ||
(ExistsEnemy(position) && Position.Row - i == 1 && Position.Column - j == 1) ||
(ExistsEnemy(position) && Position.Row - i == 1 && j - Position.Column == 1)))
{
possiblesMovements[i, j] = true;
}
}
else if (Color is Color.Black)
{
if ((Board.IsPositionValid(position) && CanMove(position) && Position != null) && (
(!Board.ExistsPiece(position) && i - Position.Row == 1 && Position.Column == j) ||
(!Board.ExistsPiece(position) && (NumberOfMovements < 1) && i - Position.Row == 2 && Position.Column == j) ||
(ExistsEnemy(position) && i - Position.Row == 1 && j - Position.Column == 1) ||
(ExistsEnemy(position) && i - Position.Row == 1 && Position.Column - j == 1)))
{
possiblesMovements[i, j] = true;
}
}
}
}
// Checks enpassant
if (Position != null)
{
Position left = new Position(Position.Row, Position.Column - 1);
Position right = new Position(Position.Row, Position.Column + 1);
Piece pieceLeft = null;
Piece pieceRight = null;
if (Board.IsPositionValid(left))
{
pieceLeft = Board.Piece(left);
}
if (Board.IsPositionValid(right))
{
pieceRight = Board.Piece(right);
}
// Black
if (Position.Row == 4)
{
if (Board.IsPositionValid(left) && ExistsEnemy(left) && Match.EnableEnPassant == pieceLeft)
{
possiblesMovements[left.Row + 1, left.Column] = true;
}
else if (Board.IsPositionValid(right) && ExistsEnemy(right) && Match.EnableEnPassant == pieceRight)
{
possiblesMovements[right.Row + 1, right.Column] = true;
}
}
// White
else if (Position.Row == 3)
{
if (Board.IsPositionValid(left) && ExistsEnemy(left) && Match.EnableEnPassant == pieceLeft)
{
possiblesMovements[left.Row - 1, left.Column] = true;
}
else if (Board.IsPositionValid(right) && ExistsEnemy(right) && Match.EnableEnPassant == pieceRight)
{
possiblesMovements[right.Row - 1, right.Column] = true;
}
}
}
return(possiblesMovements);
}
