/* IsLegalMove() for the king also calls into the ChessBoard to see if
* making that move would put it in check.
*/
public MovementResult IsLegalMove(int newX, int newY)
{
if (!ChessBoard.IsLegalBoardPosition(newX, newY))
{
return new MovementResult()
{
WasSuccessful = false,
ReasonForFailure = "That board position does not exist."
}
}
;
if ((Math.Abs(newX - XCoordinate) > 1) || (Math.Abs(newY - YCoordinate) > 1))
{
return new MovementResult()
{
WasSuccessful = false,
ReasonForFailure = "That is not a valid move for this piece."
}
}
;
if (!ChessBoard.IsPositionSafeForKing(this, newX, newY))
{
return new MovementResult()
{
WasSuccessful = false,
ReasonForFailure = "A king cannot move into check."
}
}
;
if (ChessBoard.IsPieceAt(newX, newY))
{
if (ChessBoard.PieceAt(newX, newY).PieceColor == PieceColor)
{
return new MovementResult()
{
WasSuccessful = false,
ReasonForFailure = "There is a piece of the same color already there."
}
}
}
;
return(new MovementResult()
{
WasSuccessful = true,
ReasonForFailure = ""
});
}
