private static bool GenerateNumber(GameFieldModel model, Random rand, IndexPair pair)
{
var availableNumbers = GetHeuristicsAvailableNumbers(model, pair);
sbyte number = rand.Choose(availableNumbers);
model.SetItemNumber(pair, number);
return !model.IsItemEmpty(pair);
}
private static Dictionary<IndexPair, IEnumerable<sbyte>> GetAvailableDictByPairs(GameFieldModel model, IEnumerable<IndexPair> pairs, IndexPair checkedPair, int rank)
{
var dict = new Dictionary<IndexPair, IEnumerable<sbyte>>();
foreach (var pair in pairs)
{
if (rank > 1 && model.IsItemNotAvailable(pair, checkedPair))
{
model.SelectedPair = pair;
dict.Add(pair, GetHeuristicsAvailableNumbers(model, pair, rank - 1));
model.SelectedPair = null;
}
else
{
dict.Add(pair, model.GetAvailableNumbers(pair, checkedPair));
}
}
return dict;
}
private static IEnumerable<sbyte> GetAvailableByDict(Dictionary<IndexPair, IEnumerable<sbyte>> dict, IndexPair pair)
{
var currentPairValue = dict.First(item => item.Key.X == pair.X && item.Key.Y == pair.Y).Value;
if (currentPairValue.Count() == 1)
return currentPairValue;
while (/*RemoveFilledGroupNumbers(dict, 3) ||
SetGroupNumbersIfFilled(dict, 3) ||
RemoveFilledGroupNumbers(dict, 2) ||
SetGroupNumbersIfFilled(dict, 2) ||
RemoveFilledGroupNumbers(dict, 1) ||
SetGroupNumbersIfFilled(dict, 1)*/
RemoveSingleNumbers(dict) ||
SetNumbersIfSingle(dict))
{
currentPairValue = dict.First(item => item.Key.X == pair.X && item.Key.Y == pair.Y).Value;
if (currentPairValue.Count() == 1)
return currentPairValue;
}
return dict.First(item => item.Key.X == pair.X && item.Key.Y == pair.Y).Value;
}
private void ResetNumber(IndexPair pair)
{
field[pair.X, pair.Y].ResetNumber();
}
private void ResetIsVisible(IndexPair pair)
{
field[pair.X, pair.Y].ResetIsVisible();
}
private void InitField()
{
field = new CellItem[CellLineCount, CellLineCount];
indexPairs = new IndexPair[CellLineCount, CellLineCount];
for (int i = 0; i < CellLineCount; i++)
for (int j = 0; j < CellLineCount; j++)
{
indexPairs[i, j] = new IndexPair(i, j);
}
foreach (var pair in GetAllPairs())
field[pair.X, pair.Y] = new CellItem();
cancellationTokenSource = new CancellationTokenSource();
GameFieldFillHelper.Init(this, cancellationTokenSource.Token);
}
private IEnumerable<sbyte> GetRowNumbers(IndexPair pair, IndexPair checkedPair)
{
return GetAvailableNumbersByPairs(GetRowPairs(pair), checkedPair);
}
public IEnumerable<IndexPair> GetBlockPairs(IndexPair pair)
{
int xBlock = pair.X / BlockLineCount;
int yBlock = pair.Y / BlockLineCount;
int blockColumn = xBlock * BlockLineCount;
int blockRow = yBlock * BlockLineCount;
for (int i = 0; i < BlockLineCount; i++)
for (int j = 0; j < BlockLineCount; j++)
{
var xCell = blockColumn + i;
var yCell = blockRow + j;
yield return indexPairs[xCell, yCell];
}
}
public void UpdateByTap(PointF point)
{
if (Model.IsInitializing)
return;
var ctmPoint = new PointF(point.X, Frame.Height - point.Y);
if (Mode == EMode.Normal)
{
var x = (int)(ctmPoint.X / cellWidth);
var y = (int)(ctmPoint.Y / cellHeight);
var pair = new IndexPair(x, y);
if (Model.GetItemVisible(pair))
return;
SelectedPair = pair;
DialogViewModel = new DialogViewModel(GetDialogFrame(ctmPoint), dialogBorder);
Mode = EMode.Dialog;
return;
}
if (Mode == EMode.Dialog)
{
if (DialogViewModel == null || DialogViewModel.IsInvisible)
return;
if (DialogViewModel.IsInside(ctmPoint))
{
Model.SetItemVisible(SelectedPair, true);
if (DialogViewModel.GetNumber(ctmPoint) != Model.GetItemNumber(SelectedPair))
{
Mode = EMode.Lose;
}
else if (Model.IsAllItemsVisible)
{
Mode = EMode.Win;
}
else
{
Mode = EMode.Normal;
}
}
else
{
Mode = EMode.Normal;
}
SelectedPair = null;
DialogViewModel = null;
return;
}
}
public sbyte GetItemNumber(IndexPair pair)
{
return field[pair.X, pair.Y].Number;
}
public void SetItemNumber(IndexPair pair, sbyte value)
{
field[pair.X, pair.Y].Number = value;
}
public bool IsItemNotAvailable(IndexPair pair, IndexPair checkedPair)
{
return IsItemEmpty(pair) || !GetItemVisible(pair) || checkedPair.X == pair.X && checkedPair.Y == pair.Y;
}
public bool IsSelectedPair(IndexPair pair)
{
var selectedPair = SelectedPair;
return isInitializing && selectedPair != null && selectedPair.X == pair.X && selectedPair.Y == pair.Y;
}
public bool IsItemEmpty(IndexPair pair)
{
return field[pair.X, pair.Y].IsEmpty;
}
public IEnumerable<IndexPair> GetRowPairs(IndexPair pair)
{
for (int i = 0; i < CellLineCount; i++)
{
yield return indexPairs[i, pair.Y];
}
}
public bool GetItemVisible(IndexPair pair)
{
return field[pair.X, pair.Y].IsVisible;
}
private static IEnumerable<sbyte> GetHeuristicsAvailableNumbers(GameFieldModel model, IndexPair pair, int rank = 1)
{
var blockDict = GetBlockAvailableDict(model, pair, rank);
var available = GetAvailableByDict(blockDict, pair).ToList();
if (available.Count < 2)
return available;
var rowDict = GetRowAvailableDict(model, pair, rank);
available = available.Intersect(GetAvailableByDict(rowDict, pair)).ToList();
if (available.Count < 2)
return available;
var columnDict = GetColumnAvailableDict(model, pair, rank);
return available.Intersect(GetAvailableByDict(columnDict, pair));
}
private static Dictionary<IndexPair, IEnumerable<sbyte>> GetBlockAvailableDict(GameFieldModel model, IndexPair pair, int rank)
{
var blockPairs = model.GetBlockPairs(pair);
return GetAvailableDictByPairs(model, blockPairs, pair, rank);
}
public void SetItemVisible(IndexPair pair, bool isVisible)
{
field[pair.X, pair.Y].IsVisible = isVisible;
}
public IEnumerable<IndexPair> GetColumnPairs(IndexPair pair)
{
for (int j = CellLineCount - 1; j >= 0; j--)
{
yield return indexPairs[pair.X, j];
}
}
private IEnumerable<sbyte> GetAvailableNumbersByPairs(IEnumerable<IndexPair> pairs, IndexPair checkedPair)
{
foreach (var pair in pairs)
{
if (IsItemNotAvailable(pair, checkedPair))
continue;
yield return GetItemNumber(pair);
}
}
private IEnumerable<sbyte> GetCheckedAvailableNumbers(IndexPair pair, IndexPair checkedPair)
{
var cellBlockNumbers = GetBlockNumbers(pair, checkedPair);
var cellRowNumbers = GetRowNumbers(pair, checkedPair);
var blockRowNumbers = cellBlockNumbers.Union(cellRowNumbers).Distinct().ToList();
if (blockRowNumbers.Count == CellLineCount)
return new List<sbyte>();
var cellColumnNumbers = GetColumnNumbers(pair, checkedPair);
var alreadyGeneratedNumbers = blockRowNumbers.Union(cellColumnNumbers).Distinct();
return numberList.Except(alreadyGeneratedNumbers);
}
public void UpdateByOffboardTap()
{
if (Mode != EMode.Dialog)
return;
Mode = EMode.Normal;
SelectedPair = null;
DialogViewModel = null;
}
private IEnumerable<sbyte> GetDefaultAvailableNumbers(IndexPair pair)
{
return GetItemNumber(pair).Yield();
}
private void FillCellBackground(IndexPair pair)
{
context.AddRect(new RectangleF(pair.X * cellWidth, pair.Y * cellHeight, cellWidth, cellHeight));
context.DrawPath(CGPathDrawingMode.Fill);
}
public IEnumerable<sbyte> GetAvailableNumbers(IndexPair pair, IndexPair checkedPair)
{
return IsItemNotAvailable(pair, checkedPair)
? GetCheckedAvailableNumbers(pair, checkedPair)
: GetDefaultAvailableNumbers(pair);
}