public XamagonXuzzlePage()
{
InitializeComponent();
for (int row = 0; row < NUM; row++)
{
for (int col = 0; col < NUM; col++)
{
if (row == NUM - 1 && col == NUM - 1)
{
break;
}
ImageSource imageSource =
ImageSource.FromResource("Animation.Images.Bitmap" + row + col + ".png");
XamagonXuzzleTile tile = new XamagonXuzzleTile(row, col, imageSource);
TapGestureRecognizer tapGestureRecognizer = new TapGestureRecognizer
{
Command = new Command(OnTileTapped),
CommandParameter = tile
};
tile.GestureRecognizers.Add(tapGestureRecognizer);
tiles[row, col] = tile;
absoluteLayout.Children.Add(tile);
}
}
}
async private void OnTileTapped(object parameter)
{
if (isBusy)
{
return;
}
isBusy = true;
XamagonXuzzleTile tappedTile = (XamagonXuzzleTile)parameter;
await ShiftIntoEmpty(tappedTile.Row, tappedTile.Col);
isBusy = false;
}
async private Task AnimateTile(int row, int col, int newRow, int newCol, uint length)
{
XamagonXuzzleTile animaTile = tiles[row, col];
Rectangle rect = new Rectangle(emptyCol * tileSize, emptyRow * tileSize, tileSize, tileSize);
await animaTile.LayoutTo(rect, length);
AbsoluteLayout.SetLayoutBounds(animaTile, rect);
tiles[newRow, newCol] = animaTile;
animaTile.Row = newRow;
animaTile.Col = newCol;
tiles[row, col] = null;
emptyRow = row;
emptyCol = col;
}
private void OnContentViewSizeChanged(object sender, EventArgs e)
{
ContentView contentView = (ContentView)sender;
double width = contentView.Width;
double height = contentView.Height;
if (width <= 0 || height <= 0)
{
return;
}
stackLayout.Orientation = (width < height) ? StackOrientation.Vertical : StackOrientation.Horizontal;
tileSize = Math.Min(width, height) / NUM;
absoluteLayout.WidthRequest = NUM * tileSize;
absoluteLayout.HeightRequest = NUM * tileSize;
foreach (View view in absoluteLayout.Children)
{
XamagonXuzzleTile tile = (XamagonXuzzleTile)view;
AbsoluteLayout.SetLayoutBounds(tile, new Rectangle(tile.Col * tileSize, tile.Row * tileSize, tileSize, tileSize));
}
}