public bool TouchFinish(SquareDataViewModel cell, out bool cleared)
{
int x, y;
cleared = false;
if (SelectedCells.Count == 0)
{
return(false);
}
var state = CreateGridState();
if (cell == null)
{
var cellIndex = SelectedCells.Last();
x = cellIndex % Definition.Width;
y = cellIndex / Definition.Width;
cell = Grid[x, y];
}
else
{
FindXY(cell, out x, out y);
}
Debug.WriteLine($"TouchFinish: {x}, {y}: {cell}");
if (IsGameOver)
{
return(false);
}
if (SelectedLine == null)
{
return(false);
}
if (SelectedCells.Count >= 2)
{
int cellIndex = Definition.GetCellIndex(x, y);
int lastCellIndex = SelectedCells.Last();
if (lastCellIndex == cellIndex)
{
lastCellIndex = SelectedCells[SelectedCells.Count - 2];
}
if (!AreCellsNextToEachOther(lastCellIndex, cellIndex))
{
ClearSelectedShape();
return(false);
}
}
var allCells = Grid.Flatten().ToList();
var touchingCelling = allCells.Where(c => c.TouchState == TouchState.Touching);
if (cell.Fixed && // Start or end
cell.GameLine == SelectedLine && // Same as beggining
(touchingCelling.Count() > 1)) // Selected more than a single cell
{
foreach (var touchedCell in touchingCelling)
{
touchedCell.TouchState = TouchState.Touched;
touchedCell.MarkerVisible = false;
}
cell.TouchState = TouchState.Touched;
cell.MarkerVisible = false;
SelectedLine = null;
SelectedCells.Clear();
UpdateAllCells();
if (CheckComplete())
{
return(false);
}
GridStates.Push(state);
return(true);
}
ClearSelectedShape();
return(false);
}
public bool TouchCell(SquareDataViewModel cell)
{
if (cell == null)
{
return(false);
}
int x, y;
FindXY(cell, out x, out y);
int cellIndex = Definition.GetCellIndex(x, y);
int lastCellIndex = SelectedCells.Count == 0 ? -1 : SelectedCells.Last();
Debug.WriteLine($"TouchCell: {x}, {y}: {cell}");
if (IsGameOver)
{
return(false);
}
if (SelectedLine == null)
{
return(false);
}
if (lastCellIndex == cellIndex)
{
return(false); // Ain't moved
}
if (cell.TouchState == TouchState.Touched)
{
return(false);
}
// Touching another line start/end
if (cell.Fixed && cell.GameLine != SelectedLine)
{
return(false);
}
// If selected cell is already in the list. This is when the user goes backwards
if (SelectedCells.Contains(cellIndex))
{
// The user has back tracked
var index = SelectedCells.LastIndexOf(cellIndex);
while (SelectedCells.Count > index)
{
var last = SelectedCells.Last();
SelectedCells.RemoveAt(SelectedCells.Count() - 1);
int lastX, lastY;
Definition.GetCellXY(last, out lastX, out lastY);
var lastCell = Grid[lastX, lastY];
lastCell.TouchState = TouchState.UnTouched;
}
if (index < SelectedCells.Count)
{
SelectedCells.RemoveRange(index + 1, SelectedCells.Count - index);
}
return(true);
}
if (lastCellIndex >= 0)
{
if (!AreCellsNextToEachOther(lastCellIndex, cellIndex))
{
return(false);
}
}
cell.TouchState = TouchState.Touching;
cell.GameLine = SelectedLine;
SelectedCells.Add(cellIndex);
return(true);
}