/// <summary>
/// Helper method to get the absolute position with respect to the screen borders
/// </summary>
private Thickness GetPositionForCell(Cell cell)
{
var pos = new System.Windows.Point(cell.ActualWidth / 2 - numberSelection.KeyboardSize.Width / 2, cell.ActualHeight / 2 - numberSelection.KeyboardSize.Height / 2);
pos = cell.TransformToVisual(LayoutRoot).Transform(pos);
if (pos.X < 0)
pos.X = 0;
else if (pos.X > LayoutRoot.ActualWidth - numberSelection.KeyboardSize.Width)
pos.X = LayoutRoot.ActualWidth - numberSelection.KeyboardSize.Width;
if (pos.Y < 0)
pos.Y = 0;
else if (pos.Y > LayoutRoot.ActualHeight - numberSelection.KeyboardSize.Height)
pos.Y = LayoutRoot.ActualHeight - numberSelection.KeyboardSize.Height;
return new Thickness(pos.X, pos.Y, 0, 0);
}
/// <summary>
/// Action triggered when user selected a number
/// </summary>
private void OnNumberChoosen(Cell sender, int number)
{
var conflictingCells = game.SetNumberByPlayer((int)sender.GetValue(Grid.RowProperty),
(int)sender.GetValue(Grid.ColumnProperty),
number);
foreach (var point in conflictingCells)
cells[point.X][point.Y].Blink();
SoundHelper.PlaySound(SoundHelper.SoundType.CellSelectedSound);
if (gameState != GameState.NotStarted && game.EmptyCells == 0)
GameEnds();
}
/// <summary>
/// Creates the grid cells and populates the board grid with the cells
/// </summary>
/// <returns>9x9 array of empty cells</returns>
private Cell[][] CreateGrid()
{
var darkImage = new BitmapImage(new Uri("/gfx/darkGridItem.png", UriKind.Relative));
var lightImage = new BitmapImage(new Uri("/gfx/lightGridItem.png", UriKind.Relative));
bool lightCell = false;
Cell[][] cells = new Cell[GameLogic.RowLength][];
for (int row = 0; row < GameLogic.RowLength; row++)
{
cells[row] = new Cell[GameLogic.ColumnLength];
if (row % GameLogic.BlockSize != 0)
lightCell = !lightCell;
for (int col = 0; col < GameLogic.ColumnLength; col++)
{
// switch image type (light or dark) after each 3 cells in row
if (col % GameLogic.BlockSize == 0)
lightCell = !lightCell;
Cell c = new Cell();
c.SetValue(Grid.RowProperty, row);
c.SetValue(Grid.ColumnProperty, col);
c.BackgroundImage.Source = lightCell ? lightImage : darkImage;
// install event handler
c.MouseLeftButtonDown += new MouseButtonEventHandler(OnCellTouched);
// set binding to proper BoardValue from BoardViewModel
Binding b = new Binding(string.Format("BoardNumbers[{0}][{1}].Value", row, col));
c.SetBinding(Cell.ValueProperty, b);
Binding b2 = new Binding(string.Format("BoardNumbers[{0}][{1}].SetByGame", row, col));
c.SetBinding(Cell.SetByGameProperty, b2);
cells[row][col] = c;
BoardGrid.Children.Add(c);
}
}
return cells;
}