public void AddDiscardedValues(SudokuCell keyCell, List <int> discardedValues)
{
if (discardedCellValues != null && discardedCellValues.ContainsKey(keyCell))
{
if (discardedValues.Contains(0))
{
discardedValues.RemoveAll(dv => dv == 0);
}
if (keyCell.isFilled && discardedValues.Contains(keyCell.FillValue))
{
discardedValues.RemoveAll(fv => fv == keyCell.FillValue);
}
if (discardedValues != null && discardedValues.Count > 0)
{
discardedCellValues[keyCell] = discardedCellValues[keyCell].Union(discardedValues).ToList();
}
if (keyCell.NeighborFills != null && discardedValues.Any(dv => keyCell.NeighborFills.Contains(dv)))
{
discardedValues = discardedValues.Except(keyCell.NeighborFills).ToList();
if (discardedValues == null || discardedValues.Count == 0)
{
return;
}
else
{
discardedCellValues[keyCell] = discardedCellValues[keyCell].Union(discardedValues).Distinct().ToList();
}
}
}
else if (discardedCellValues != null && !discardedCellValues.ContainsKey(keyCell))
{
AddKey(keyCell, discardedValues);
}
}
public void AddKey(SudokuCell keyCell, List <int> value = null)
{
if (discardedCellValues.Keys.Contains(keyCell))
{
Console.WriteLine("Key already exists in discarded values");
}
else
{
if (value == null)
{
discardedCellValues[keyCell] = new List <int>();
}
else
{
if (value.Contains(0))
{
value.RemoveAll(ak => ak == 0);
}
if (keyCell.isFilled && value.Contains(keyCell.FillValue))
{
value.RemoveAll(af => af == keyCell.FillValue);
}
if (keyCell.isFilled && keyCell.NeighborFills != null && value.Any(v => keyCell.NeighborFills.Contains(v)))
{
value = value.Except(keyCell.NeighborFills).ToList();
if (value == null || value.Count == 0)
{
discardedCellValues[keyCell] = new List <int>();
return;
}
}
discardedCellValues[keyCell] = value;
}
}
}
public void AddDiscardedValue(SudokuCell keyCell, int discardedValue)
{
if (!discardedCellValues.ContainsKey(keyCell))
{
AddKey(keyCell, new List <int>()
{
discardedValue
});
}
if (discardedCellValues[keyCell] != null && !discardedCellValues[keyCell].Contains(discardedValue))
{
if (!keyCell.isFilled || (keyCell.isFilled && discardedValue != keyCell.FillValue))
{
discardedCellValues[keyCell].Add(discardedValue);
Console.WriteLine("{0} added to {1}'s list of discarded values", discardedValue, keyCell);
Debug.WriteLine("{0} added to {1}'s list of discarded values", discardedValue, keyCell);
}
if (!keyCell.isFilled && keyCell.NeighborFills != null && keyCell.NeighborFills.Contains(discardedValue))
{
Console.WriteLine("Cannot add a neighboring value to discarded values table.");
Debug.WriteLine("Cannot add a neighboring value to discarded values table.");
}
if (keyCell.isFilled && keyCell.FillValue == discardedValue)
{
Console.WriteLine("Cannot discard the fill value of a cell.");
Debug.WriteLine("Cannot discard the fill value of a cell.");
}
}
else
{
Console.WriteLine("The cell already has {0} inside its list of discarded values.", discardedValue);
Debug.WriteLine("The cell already has {0} inside its list of discarded values.", discardedValue);
}
}
public List <TwinNode> GetTwinNodesWithKey(SudokuCell targetCell)
{
if (!ConfirmTwinKey(targetCell))
{
return(null);
}
return(_twinNodes.Select(tnc => tnc).Where(tidx => tidx.keyA == targetCell || tidx.keyB == targetCell).ToList());
}
//function to input a cell and return list not containing said cell (if cell is inside)
public List <SudokuCell> GetNeighboringCells(SudokuCell inputCell)
{
if (_members.Contains(inputCell))
{
return(_members.Where(z => z != inputCell).ToList());
}
return(null);
}
public static int getCellDistance(SudokuCell c1, SudokuCell c2)
{
int dx = (c2.rowNumber - c1.rowNumber);
int dy = (c2.colNumber - c2.colNumber);
double totalDistance = Math.Sqrt((dx ^ 2) + (dy ^ 2));
return((int)totalDistance);
}
public List <int> this[SudokuCell key] {
get { return(GetPairByKeyType(key).Value); } set { if (value == null)
{
throw new InvalidOperationException();
}
else
{
AddDiscardedValues(key, value);
} }
}
public bool Remove(SudokuCell key)
{
if (ContainsKey(key))
{
return(discardedCellValues.Remove(GetPairByKeyType(key).Key));
}
else
{
return(false);
}
}
public void RemoveMember(SudokuCell target)
{
if (!_members.Contains(target))
{
Console.WriteLine("The desired cell is not in this group.");
}
else
{
_members.Remove(target);
}
}
public bool Remove(SudokuCell key, int value)
{
if (ContainsKey(key))
{
if (this[key].Contains(value))
{
return(this[key].Remove(value));
}
}
return(false);
}
public int RemoveValue(SudokuCell key, int value)
{
if (discardedCellValues != null && discardedCellValues.ContainsKey(key))
{
if (discardedCellValues[key].Contains(value))
{
discardedCellValues[key].Remove(value);
return(value);
}
}
return(0);
}
public bool TryGetValue(SudokuCell key, out List <int> value)
{
if (ContainsKey(key))
{
value = GetPairByKeyType(key).Value;
return(true);
}
else
{
value = default(List <int>);
return(false);
}
}
private KeyValuePair <SudokuCell, List <int> > GetPairByKeyType(SudokuCell key)
{
KeyValuePair <SudokuCell, List <int> > pair = discardedCellValues.Where(u => u.GetType() == key.GetType()).FirstOrDefault();
if (pair.Key == null)
{
throw new KeyNotFoundException();
}
else
{
return(pair);
}
}
public bool ContainsKey(SudokuCell key)
{
KeyValuePair <SudokuCell, List <int> > pair = discardedCellValues.Where(u => u.Key.GetType() == key.GetType()).FirstOrDefault();
if (pair.Key == null)
{
return(false);
}
else
{
return(true);
}
}
public List <int> RemoveValues(SudokuCell keyCell, List <int> values)
{
if (discardedCellValues != null && discardedCellValues.ContainsKey(keyCell))
{
foreach (int value in values)
{
if (discardedCellValues[keyCell].Contains(value))
{
discardedCellValues[keyCell].Remove(value);
}
}
return(values);
}
return(null);
}
public void SetupBoard(string clueFile)
{
InitializeCellGroups();
List <CellData> clueList = ClueSerializationUtility.DeserailizeClues(clueFile, out bool fileExists);
if (clueList != null && clueList.Count > 0)
{
puzzleId = clueFile;
for (int i = 0; i < 81; i++)
{
int rn = i / 9;
int cn = i % 9;
CellData cellular = clueList.FirstOrDefault(a => a.rowNum == rn + 1 && a.columnNum == cn + 1);
if (cellular != null)
{
SudokuCell cellulos = new SudokuCell(cellular);
cellList.Add(cellulos);
rowList[rn].AddMember(cellulos);
columnList[cn].AddMember(cellulos);
subgridList[cellulos.sgNumber - 1].AddMember(cellulos);
cellulos.rowPointer = rowList[rn];
cellulos.columnPointer = columnList[cn];
cellulos.subgridPointer = subgridList[cellulos.sgNumber - 1];
fillFrequencyCounter.IncrementFor(cellulos.FillValue);
Debug.WriteLine(cellulos);
}
else
{
SudokuCell cellulos = new SudokuCell();
cellList.Add(cellulos);
cellulos.rowNumber = rn + 1;
cellulos.colNumber = cn + 1;
SudokuCellExtensions.AssignSubgridNumber(cellulos);
rowList[rn].AddMember(cellulos);
columnList[cn].AddMember(cellulos);
subgridList[cellulos.sgNumber - 1].AddMember(cellulos);
cellulos.rowPointer = rowList[rn];
cellulos.columnPointer = columnList[cn];
cellulos.subgridPointer = subgridList[cellulos.sgNumber - 1];
}
}
}
}
public static void UnfillCell(this SudokuCell sudokuCell)
{
if (sudokuCell == null)
{
new NullReferenceException();
}
else
{
if (sudokuCell.isFilled)
{
int oldValue = sudokuCell.FillValue;
sudokuCell.FillValue = 0;
SudokuPuzzle.GetPuzzle().cellBoard.fillFrequencyCounter.DecrementFor(oldValue);
}
else
{
Console.WriteLine("{0} is already unfilled.", sudokuCell.ToString());
}
}
}
public static void FillCell(this SudokuCell sudokuCell, int newFill)
{
if (sudokuCell == null)
{
new NullReferenceException();
}
else
{
if (sudokuCell.Possibilities.Contains(newFill))
{
sudokuCell.FillValue = newFill;
Console.WriteLine("{0} now has fill value of {1}", sudokuCell.ToString(), newFill.ToString());
Debug.WriteLine("{0} now has fill value of {1}", sudokuCell.ToString(), newFill.ToString());
SudokuPuzzle.GetPuzzle().cellBoard.fillFrequencyCounter.IncrementFor(newFill);
}
else
{
Console.WriteLine("{0} not part of {1}'s possibilities", newFill.ToString(), sudokuCell.ToString());
}
}
}
//function to return cell(s) that all belong to one different subgroup
public List <SudokuCell> ReturnSharedNeighbors(SudokuCell sc)
{
if (!_members.Contains(sc))
{
return(null);
}
List <SudokuCell> sharedNeighbors = new List <SudokuCell>();
foreach (SudokuCell icell in _members)
{
switch (_groupType)
{
case UnitType.row:
if (icell.colNumber == sc.colNumber || icell.sgNumber == sc.sgNumber)
{
sharedNeighbors.Add(icell);
}
break;
case UnitType.column:
if (icell.rowNumber == sc.rowNumber || icell.sgNumber == sc.sgNumber)
{
sharedNeighbors.Add(icell);
}
break;
case UnitType.subgrid:
if (icell.rowNumber == sc.rowNumber || icell.colNumber == sc.colNumber)
{
sharedNeighbors.Add(icell);
}
break;
default:
break;
}
}
return(sharedNeighbors);
}
public CellAttempts(SudokuCell s_cell, List <int> attemptedVals) //constructor with multiple attempted values
{
keyCell = s_cell;
attemptedValues = attemptedVals;
}
public SudokuCell getFewestPossibilitiesNeighbor()
{
SudokuCell fewestCell = neighbors.OrderBy(y => y.Possibilities.Count()).FirstOrDefault();
return(fewestCell);
}
public static void AssignSubgridNumber(SudokuCell inputCell)
{
bool canBeFilled = !inputCell.isClue || inputCell.rowNumber == 0 || inputCell.colNumber == 0;
if (canBeFilled)
{
if (inputCell.rowNumber <= 3)
{
if (inputCell.colNumber <= 3)
{
inputCell.sgNumber = 1;
}
else if (inputCell.colNumber <= 6)
{
inputCell.sgNumber = 2;
}
else
{
inputCell.sgNumber = 3;
}
}
else if (inputCell.rowNumber <= 6)
{
if (inputCell.colNumber <= 3)
{
inputCell.sgNumber = 4;
}
else if (inputCell.colNumber <= 6)
{
inputCell.sgNumber = 5;
}
else
{
inputCell.sgNumber = 6;
}
}
else
{
if (inputCell.colNumber <= 3)
{
inputCell.sgNumber = 7;
}
else if (inputCell.colNumber >= 4 && inputCell.colNumber <= 6)
{
inputCell.sgNumber = 8;
}
else
{
inputCell.sgNumber = 9;
}
}
}
else
{
if (inputCell.isClue)
{
Console.WriteLine("Cannot change the subgrid number of a clue");
}
else
{
Console.WriteLine("Assign the row and column numbers of the cell a value ranging from 1-9");
}
}
}
public bool ConfirmTwinKey(SudokuCell inquiry)
{
return(_keyNodes.Contains(inquiry));
}
public void AddMember(SudokuCell newMember)
{
_members.Add(newMember);
}
public TwinNode(SudokuCell a, SudokuCell b, HashSet <int> sharedValues, TwinEnum tEnum)
{
twinCells = new Pair <SudokuCell, SudokuCell>(a, b);
possSet = sharedValues;
twinEnum = tEnum;
}
public List <int> GetCellDiscardedValues(SudokuCell keyCell)
{
return(discardedCellValues[keyCell]);
}
public void ClearKey(SudokuCell key)
{
discardedCellValues[key].Clear();
}
public void Add(SudokuCell key, List <int> value)
{
(this as ICollection <KeyValuePair <SudokuCell, List <int> > >).Add(new KeyValuePair <SudokuCell, List <int> >(key, value));
}
public CellAttempts(SudokuCell s_cell, int singularVal) //constructor with only a single attempted value
{
keyCell = s_cell;
attemptedValues = new List <int>();
attemptedValues.Add(singularVal);
}