/// <summary>
/// Check the number of MainBlocks that may own the given Cell.
/// Can proves no solution, mark a Cell as owned or set a possible block as a solution to a MainBlock.
/// </summary>
private bool CountCellPossibleOwners(ICell cell)
{
//There are no MainBlocks that can contain the Cell, hence there can be no solution.
if (cell.GetPossibleMainBlocks.Count == 0)
{
return(true);
}
//There is only 1 MainBlock that can contain this Cell, hence the Cell must be owned by said MainBlock.
//If there is also only 1 PossibleOwner for this MainBlock, that PossibleBlock must be the solution to the MainBlock.
if (cell.GetPossibleMainBlocks.Count == 1)
{
if (cell.GetPossibleOwners[cell.GetPossibleMainBlocks.First.Value].Count == 1)
{
if (_ownershipSetter.SetPossibleBlockAsSolution(AdditionalMethods.CreatePossibleBlockFromIndex(
cell.GetPossibleMainBlocks.First.Value, _solutionTracker.BlockDimensionSets, cell.GetPossibleOwners[cell.GetPossibleMainBlocks.First.Value].First.Value)))
{
return(true);
}
}
else
{
if (_ownershipSetter.MarkCellAsOwned(cell, cell.GetPossibleMainBlocks.First.Value))
{
return(true);
}
}
}
return(false);
}
private bool CheckMainBlocks(List <IMainBlock> mainBlocks)
{
if (mainBlocks == null)
{
return(true);
}
else
{
foreach (IMainBlock mainBlock in mainBlocks)
{
foreach (int possibleBlock in mainBlock.PossibleBlocks)
{
SetPossibleBlockAsSolution(AdditionalMethods.CreatePossibleBlockFromIndex(mainBlock, _solutionTracker.BlockDimensionSets, possibleBlock));
}
}
}
return(false);
}
