private bool TryGetValueAt(int row, int column, out int?value, out string error)
{
AccessibleBoard board = new AccessibleBoard
{
AccessibleTiles = new List <Tile>()
{
new Tile(0), new Tile(1), new Tile(2), new Tile(null)
},
AccessibleBlankIndex = 3,
AccessibleSize = 2,
AccessibleIsSolved = true,
AccessibleTotalMisplacedTiles = 0
};
BoardValueFetcher boardValueFetcher = new BoardValueFetcher();
bool found = boardValueFetcher.TryGetValueAt(board, row, column, out value, out error);
return(found);
}
public virtual string Render(Board board)
{
StringBuilder sb = new StringBuilder();
IEnumerable <int> indices = Enumerable.Range(0, board.Size);
sb.AppendLine($"Number Of Misplaced Tiles: {board.TotalMisplacedTiles}");
indices.ToList().ForEach(row =>
{
IEnumerable <string> rowValues = indices.Select(col =>
{
if (!boardValueFetcher.TryGetValueAt(board, row, col, out int?value, out string error))
{
throw new System.Exception($"Something is wrong - can't get value at {row}/{col}: {error}");
}
else
{
return(value.HasValue ? $"{value.Value}" : "");
}
});
sb.AppendJoin("\t", rowValues);
sb.Append(Environment.NewLine);
});
return(sb.ToString());
}