/*
* The King can move in any direction by 1 space, unless it is Castling.
* The King asks the Move Validator if it is allowed to Castle.
* It is only a valid move if it can Castle, or if the square it's moving from has a piece and it is not
* moving to itself. Also need to check if the space it's moving to is not occupied by it's own colored pieces.
*/
public bool IsValidMove(GameBoard gb, Square fromSquare, Square toSquare)
{
int fromRow = fromSquare.RowID;
int fromCol = fromSquare.ColID;
int toRow = toSquare.RowID;
int toCol = toSquare.ColID;
bool isOccupied = MoveValidator.IsOccupied(toSquare);
bool isEnemy = MoveValidator.IsEnemy(fromSquare, toSquare);
if (fromSquare.Piece == null || fromSquare.Piece == toSquare.Piece)
{
return(false);
}
bool isCastle = MoveValidator.IsCastle(gb, fromSquare, toSquare);
if (isCastle)
{
return(true);
}
if (((toRow == fromRow + 1 && toCol == fromCol) || (toCol == fromCol + 1 && toRow == fromRow) ||
(toRow == fromRow - 1 && toCol == fromCol) || (toCol == fromCol - 1 && toRow == fromRow) ||
(toRow == fromRow + 1 && toCol == fromCol + 1) || (toRow == fromRow - 1 && toCol == fromCol - 1) ||
(toRow == fromRow + 1 && toCol == fromCol - 1) || (toRow == fromRow - 1 && toCol == fromCol + 1)) &&
(!isOccupied || isEnemy))
{
return(true);
}
return(false);
}
