public filledBox[] shuffleBoxesCreateCheckingLists()
{
filledBox[] boxes = new filledBox[81];
for (int i = 0; i < 81; i++)
{
boxes[i] = new filledBox();
boxes[i].values = new int[9] {
1, 2, 3, 4, 5, 6, 7, 8, 9
};
boxes[i].values = shuffle(boxes[i].values);
}
generationLines = new List <filledBox> [9];
generationColumns = new List <filledBox> [9];
generationGroups = new List <filledBox> [9];
for (int i = 0; i < 9; i++)
{
generationLines[i] = new List <filledBox>();
generationColumns[i] = new List <filledBox>();
generationGroups[i] = new List <filledBox>();
}
int boxIndex = 0;
for (int y = 0; y < 3; y++)
{
for (int x = 0; x < 3; x++)
{
for (int innerY = 0; innerY < 3; innerY++)
{
for (int innerX = 0; innerX < 3; innerX++)
{
int subPanelIndex = x + y * 3;
int lineIndex = innerY + y * 3;
int columnIndex = innerX + x * 3;
boxes[boxIndex].textBoxIndex = boxIndex;
boxes[boxIndex].groupIndex = subPanelIndex;
boxes[boxIndex].columnIndex = columnIndex;
boxes[boxIndex].lineIndex = lineIndex;
boxes[boxIndex].nextIndexToTry = 0;
boxes[boxIndex].value = 0;
generationLines[lineIndex].Add(boxes[boxIndex]);
generationColumns[columnIndex].Add(boxes[boxIndex]);
generationGroups[subPanelIndex].Add(boxes[boxIndex]);
boxIndex++;
}
}
}
}
#if !fast
boxes = shuffle(boxes);
#endif
return(boxes);
}
public bool createsError(filledBox box)
{
bool result = false;
if (hasError(generationGroups[box.groupIndex], box))
{
result = true;
}
else if (hasError(generationLines[box.lineIndex], box))
{
result = true;
}
else if (hasError(generationColumns[box.columnIndex], box))
{
result = true;
}
return(result);
}
public bool hasError(List <filledBox> list, filledBox box)
{
bool result = false;
foreach (filledBox filledBoxToCheck in list)
{
if (filledBoxToCheck.value == box.values[box.nextIndexToTry])
{
if (box.lineIndex != filledBoxToCheck.lineIndex ||
box.columnIndex != filledBoxToCheck.columnIndex)
{
result = true;
break;
}
}
}
return(result);
}