private OperationResult <StateInfo> getStateInfo(GameState gameState, int piecePosition, int newPiecePosition, PieceType?piecePromotionType)
{
var square = gameState.Squares.GetSquare(piecePosition);
if (!square.Occupied)
{
return(OperationResult <StateInfo> .Fail("Square was empty."));
}
if (square.Piece.Color != gameState.ActiveColor)
{
return(OperationResult <StateInfo> .Fail("Wrong team."));
}
var moveInfoResult = _moveService.GetStateInfo(gameState, piecePosition, newPiecePosition);
if (moveInfoResult.Failure)
{
return(OperationResult <StateInfo> .Fail(moveInfoResult.Message));
}
var moveInfo = moveInfoResult.Result;
if (moveInfo.IsPawnPromotion)
{
if (!piecePromotionType.HasValue)
{
return(OperationResult <StateInfo> .Fail("Must provide pawn promotion piece type in order to promote a pawn."));
}
moveInfo.PawnPromotedTo = piecePromotionType.Value;
}
//var putsOwnKingInCheck = false;
if (moveInfo.IsCheck)
{
return(OperationResult <StateInfo> .Fail("Must move out of check. Must not move into check."));
}
return(OperationResult <StateInfo> .Ok(moveInfo));
}
