public LineUpdatedEventArgs(Definition.Line line)
: base(line.Index, line)
{
this.line = line;
}
private bool fillOnlyTwoElement(Definition.Line line)
{
var twoEmptyElementsQuery = line.Elements.OnlyTwo(item => !item.HasValue);
if (!twoEmptyElementsQuery.Any())
{
return(false);
}
Definition.Element emptyElement1, emptyElement2;
using (var iterator = twoEmptyElementsQuery.GetEnumerator())
{
iterator.MoveNext();
emptyElement1 = iterator.Current;
iterator.MoveNext();
emptyElement2 = iterator.Current;
}
var valuesRemainder = line.Elements
.Values()
.SudokuExcept()
.ToArray();
var sudoku = this.sudoku;
int emptyElement1Index = emptyElement1.Index;
int emptyElement2Index = emptyElement2.Index;
int sourceGrid1Index = emptyElement1.GridIndex;
int sourceGrid2Index = emptyElement2.GridIndex;
bool inSameGrid = sourceGrid1Index == sourceGrid2Index;
var sourceGrid1 = sudoku.Grids[sourceGrid1Index];
var sourceGrid2 = inSameGrid ? sourceGrid1 : sudoku.Grids[sourceGrid2Index];
var lineType = getOppositeLineType(line.LineType);
Definition.Grid otherGrid1ForElement1, otherGrid2ForElement1;
sourceGrid1.GetOtherGrids(lineType, out otherGrid1ForElement1, out otherGrid2ForElement1);
Definition.Grid otherGrid1ForElement2, otherGrid2ForElement2;
if (inSameGrid)
{
otherGrid1ForElement2 = otherGrid1ForElement1;
otherGrid2ForElement2 = otherGrid2ForElement1;
}
else
{
sourceGrid2.GetOtherGrids(lineType, out otherGrid1ForElement2, out otherGrid2ForElement2);
}
int layer1, layer2;
switch (lineType)
{
case Definition.LineType.Row:
layer1 = emptyElement1Index / 3;
layer2 = emptyElement2Index / 3;
break;
case Definition.LineType.Column:
layer1 = emptyElement1Index % 3;
layer2 = emptyElement2Index % 3;
break;
default: throw new NotImplementedException();
}
var valuesForEmptyElement1 =
otherGrid1ForElement1.GetElementsInCurrentGridLine(layer1, lineType)
.Concat(otherGrid2ForElement1.GetElementsInCurrentGridLine(layer1, lineType))
.Values();
var except1 = valuesRemainder.Except(valuesForEmptyElement1);
int value1 = except1.SingleOrDefault(-1);
if (value1 > 0)
{
var exceptedValue = valuesRemainder.Except(value1).First();
filling(emptyElement1, value1);
emptyElement1.SetValue(value1);
if (!emptyElement2.HasValue)
{
filling(emptyElement2, exceptedValue);
emptyElement2.SetValue(exceptedValue);
}
return(true);
}
var valuesForEmptyElement2 =
otherGrid1ForElement2.GetElementsInCurrentGridLine(layer2, lineType)
.Concat(otherGrid2ForElement2.GetElementsInCurrentGridLine(layer2, lineType))
.Values();
var except2 = valuesRemainder.Except(valuesForEmptyElement2);
int value2 = except2.SingleOrDefault(-1);
if (value2 > 0)
{
var exceptedValue = valuesRemainder.Except(value2).First();
filling(emptyElement2, value2);
emptyElement2.SetValue(value2);
if (!emptyElement1.HasValue)
{
filling(emptyElement1, exceptedValue);
emptyElement1.SetValue(exceptedValue);
}
return(true);
}
return(false);
}
public LineObserver(Definition.Line line, SeatMode seatMode)
: base(line, seatMode)
{
this.line = line;
}
