// WI: ? make virtual calls
/// <summary>
/// Converts data in the specified binary file to the instance of grid.
/// </summary>
/// <param name="binaryFile">Binary file containing
/// compressed grid.</param>
/// <returns>Instance of a particular grid.</returns>
public static SudokuGrid FromBinary(FileStream binaryFile)
{
SudokuGridConstraints constraints;
SudokuGridMetrics metrics;
byte[] numbersKinds;
string content = SudokuConverter.ToText(binaryFile, out constraints, out numbersKinds, out metrics);
//string content = SudokuConverter.ToText(binaryFile, out constraints, out metrics);
switch (metrics.MaximumNumber)
{
case 9:
var grid = new SudokuGrid9x3(constraints);
grid.IterateLinesXY((x, y) =>
{
var cell = new SudokuGridCell(grid,
new SudokuGridPosition(x, y, false),
byte.Parse(content[metrics.MaximumNumber * y + x].ToString()));
//cell.NumberChanged += (s, e) => grid.OnCellNumberChanged(new CellNumberChangedEventArgs((SudokuGridCell)s));
//grid.cells[y, x] = cell;
AssignNewCell(grid, cell);
});
return(grid);
default:
throw new SudokuGridNotSupportedException();
}
}
/// <summary>
///
/// </summary>
/// <param name="parentCell"></param>
public CandidatesSortedSet(SudokuGridCell parentCell)
{
ParentCell = parentCell;
CandidatesDecreased += (s, e) =>
{
// no substitutions exist => incorrect substitution has been made earlier
if (Count == 0)
{
OnContradictionFound(EventArgs.Empty);
}
// the only possible substitution found
else if (Count == 1)
{
parentCell.Number = this.ToArray()[0];
parentCell.Candidates = null;
}
};
}
// BUG: used to avoid buggy duplicate-code decision in solver classes -- get rid of as soon as possible
internal static void AssignNewCell(SudokuGrid grid, SudokuGridCell cell)
{
cell.NumberChanged += (s, e) => grid.OnCellNumberChanged(new CellNumberChangedEventArgs((SudokuGridCell)s));
grid.cells[cell.Position.Y, cell.Position.X] = cell;
}
public CellNumberChangedEventArgs(SudokuGridCell cell)
{
this.cell = cell;
}