public AssignmentConstraint Assign(AssignmentConstraint inAssignmentConstraint)
{
mAllowedValues.Clear();
foreach (int number in inAssignmentConstraint.mAllowedValues.Keys)
mAllowedValues.Add(number, number);
return this;
}
public AssignmentConstraint IntersectWith(AssignmentConstraint inAssignmentConstraint)
{
int[] allowedValues = new int[mAllowedValues.Keys.Count];
mAllowedValues.Keys.CopyTo(allowedValues, 0);
mAllowedValues.Clear();
foreach (int number in allowedValues)
if(inAssignmentConstraint.mAllowedValues.ContainsKey(number))
mAllowedValues.Add(number, number);
return this;
}
public bool Init(
Board inBoard,
AssignmentConstraint[] inConstraints,
int inConstraintsCount
)
{
if (inBoard.IsAvailable(mCellColumn, mCellRow))
{
if(inConstraintsCount > 0)
{
Assign(inConstraints[0]);
for (int i = 1; i < inConstraintsCount; ++i)
IntersectWith(inConstraints[i]);
}
return (0 < mAllowedValues.Count);
}
else
return true;
}
private bool SetupCellConstraints(bool inEnforceDiagonalConstraints)
{
bool statusOK = true;
int k;
AssignmentConstraint[] thisCellConstraints = new AssignmentConstraint[5];
if (inEnforceDiagonalConstraints)
{
for (int i = 0; i < 9 && statusOK; ++i)
for (int j = 0; j < 9 && statusOK; ++j)
{
thisCellConstraints[0] = ThreeByTreeBlockConstraints[i / 3, j / 3];
thisCellConstraints[1] = ColumnsConstraints[i];
thisCellConstraints[2] = RowsConstraints[j];
k = 3;
if (i == j)
thisCellConstraints[k++] = TopToBottomDiagonalConstraint;
if (i == 8 - j)
thisCellConstraints[k++] = mBottomToTopDiagonalConstraint;
statusOK = CellsConstraints[i, j].Init(mBoard, thisCellConstraints, k);
}
}
else
{
for (int i = 0; i < 9 && statusOK; ++i)
for (int j = 0; j < 9 && statusOK; ++j)
{
thisCellConstraints[0] = ThreeByTreeBlockConstraints[i / 3, j / 3];
thisCellConstraints[1] = ColumnsConstraints[i];
thisCellConstraints[2] = RowsConstraints[j];
statusOK = CellsConstraints[i, j].Init(mBoard, thisCellConstraints,3);
}
}
return statusOK;
}