public static void undo()
{
Piece last = board.at(lastMove.to);
if (last.getType() == "pawn" && (lastMove.from.y == 1 && last.getColor() == "black" || lastMove.from.y == 6 && last.getColor() == "white"))
{
last.numberOfMoves = 0;
}
else
{
last.numberOfMoves--;
}
last.setPosition(lastMove.from);
board.set(lastMove.from, last);
board.set(lastMove.to, pieceRemoved);
}
private static void move(Position from, Position to, bool realMove)
{
lastMove = new ChessMove(from, to);
Piece p1 = board.at(from);
Piece p2 = board.at(to);
pieceRemoved = p2;
int xDiff = to.x - from.x;
if (p1.getType() == "king" && Math.Abs(xDiff) > 1 && realMove)
{
int xDir = xDiff < 0 ? -2 : 1;
Position rook = new Position(to.x + xDir, to.y);
xDir = xDiff < 0 ? 1 : -1;
board.at(rook).debug();
move(rook, new Position(to.x + xDir, to.y));
}
board.set(from, new Piece("blank", "none", from));
p1.numberOfMoves++;
if (p1.getType() == "pawn" && Math.Abs(to.y - from.y) == 2)
{
p1.numberOfMoves++;
}
p1.setPosition(to);
if (p1.getType() == "pawn" && (to.y == 0 || to.y == 7))
{
p1 = new Piece("queen", p1.getColor(), p1.getPosition(), p1.getNumberOfMoves());
}
board.set(to, p1);
}