public void Reset()
{
ConvertToColor ctc = new ConvertToColor();
Board = new Tile[7, 7];
BoardState = BoardStateEnum.Normal;
RowPicked = ColPicked = -1;
LayoutRoot.Children.Clear();
for (int r = 0; r < 7; r++)
{
for (int c = 0; c < 7; c++)
{
Board[r, c] = new Tile(r, c);
Shape rect = new Ellipse();
rect.Margin = new Thickness(5);
Grid.SetRow(rect, r);
Grid.SetColumn(rect, c);
Binding bb = new Binding();
bb.Source = Board[r, c];
bb.Converter = ctc;
bb.Path = new PropertyPath("State");
rect.SetBinding(Ellipse.FillProperty, bb);
LayoutRoot.Children.Add(rect);
if (Board[r, c].State != TileStateEnum.Blocked)
{
rect.Stroke = Brushes.Black;
rect.StrokeThickness = 1;
}
rect.MouseDown += new MouseButtonEventHandler(rect_MouseDown);
}
}
}
void rect_MouseDown(object sender, MouseButtonEventArgs e)
{
Shape r = sender as Shape;
BindingExpression be = r.GetBindingExpression(Ellipse.FillProperty);
Tile t = be.DataItem as Tile;
BoardState = t.MakeMove(BoardState, ref RowPicked, ref ColPicked, Board);
CheckAnyMorePossible();
}
internal BoardStateEnum MakeMove(BoardStateEnum bs, ref int rowPicked, ref int colPicked, Tile[,] Board)
{
BoardStateEnum rbs = bs;
if (bs == BoardStateEnum.Normal)
{
if (State == TileStateEnum.Filled)
{
State = TileStateEnum.Picked;
rowPicked = m_row;
colPicked = m_col;
rbs = BoardStateEnum.Picked;
}
}
else
{
switch (State)
{
case TileStateEnum.Blocked: break; // Not allowed
case TileStateEnum.Filled: break; // Not allowed
case TileStateEnum.Picked: // Dropping it back
{
State = TileStateEnum.Filled;
rowPicked = -1;
colPicked = -1;
rbs = BoardStateEnum.Normal;
break;
}
case TileStateEnum.Empty: // We need to check if dropping here is allowed
{
if ((m_row == rowPicked)
&& (Math.Abs(m_col - colPicked) == 2)
&& (Board[m_row, (m_col + colPicked) / 2].State == TileStateEnum.Filled)
)
{
State = TileStateEnum.Filled;
Board[m_row, (m_col + colPicked) / 2].State = TileStateEnum.Empty;
}
if ((m_col == colPicked)
&& (Math.Abs(m_row - rowPicked) == 2)
&& (Board[(m_row + rowPicked) / 2, m_col].State == TileStateEnum.Filled)
)
{
State = TileStateEnum.Filled;
Board[(m_row + rowPicked) / 2, m_col].State = TileStateEnum.Empty;
}
if (State == TileStateEnum.Filled)
{
Board[rowPicked, colPicked].State = TileStateEnum.Empty;
rowPicked = -1;
colPicked = -1;
rbs = BoardStateEnum.Normal;
}
break;
}
default: // Do nothing
break;
}
}
return rbs;
}