private void AddDice(DiceViewModel newDiceViewModel)
{
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
var storyRollDice = new Storyboard();
var maxWidth = MainCanvas.ActualWidth;
var maxHeight = MainCanvas.ActualHeight;
// Retrieve the center position of the menu, to use as a start point for the animation later.
var menuCenter = (Menu.VerticalAlignment == VerticalAlignment.Center)
? new Point(Menu.ActualWidth / 2.0, maxHeight / 2.0)
: new Point(maxWidth / 2.0, maxHeight - (Menu.ActualHeight / 2.0));
// Create the Dice object.
var dice = new Dice
{
DataContext = newDiceViewModel
};
// Add it to the Canvas.
MainCanvas.Children.Add(dice);
// Find a position to place the dice in max 10 loops.
Rect posRect;
bool posOk = false;
short tryCount = 0;
while (!posOk && tryCount < 10)
{
double newTop;
double newLeft;
if (Menu.VerticalAlignment == VerticalAlignment.Center)
{
newTop = (double)RandomHelpers.Next(0, (int)(maxHeight - dice.RealHeight));
newLeft = ((newTop > (maxHeight / 2.0) ? newTop - (maxHeight / 2.0) : (maxHeight / 2.0) - newTop - dice.RealHeight) > (Menu.ActualHeight / 2.0)) ? (double)RandomHelpers.Next(0, (int)(maxWidth - dice.RealWidth)) : (double)RandomHelpers.Next((int)Menu.ActualWidth, (int)(maxWidth - dice.RealWidth));
}
else
{
newLeft = (double)RandomHelpers.Next(0, (int)(maxWidth - dice.RealWidth));
newTop = ((newLeft > (maxWidth / 2.0) ? newLeft - (maxWidth / 2.0) : (maxWidth / 2.0) - newLeft - dice.RealWidth) > (Menu.ActualWidth / 2.0)) ? (double)RandomHelpers.Next(0, (int)(maxHeight - dice.RealHeight)) : (double)RandomHelpers.Next(0, (int)(maxHeight - dice.RealHeight - Menu.ActualHeight));
}
posRect = new Rect(newLeft, newTop, dice.RealWidth, dice.RealHeight);
posOk = true;
foreach (var otherDiceRect in diceRects.Values)
{
var intersection = otherDiceRect;
intersection.Intersect(posRect);
if (!intersection.IsEmpty)
{
posOk = false;
tryCount++;
continue;
}
}
}
// Add the current dice's rect to the list.
diceRects.Add(newDiceViewModel, posRect);
Canvas.SetLeft(dice, posRect.X);
Canvas.SetTop(dice, posRect.Y);
var repositionAnim = new RepositionThemeAnimation
{
FromHorizontalOffset = (menuCenter.X - (dice.RealWidth / 2.0)) - posRect.X,
FromVerticalOffset = (menuCenter.Y - (dice.RealHeight / 2.0)) - posRect.Y,
SpeedRatio = 0.2
};
Storyboard.SetTarget(repositionAnim, dice);
storyRollDice.Children.Add(repositionAnim);
// Run the animaton.
storyRollDice.Begin();
});
}
private void AddDice()
{
var newDice = new DiceViewModel
{
Number = RandomHelpers.Next(1, this.DiceMax + 1),
SizeRatio = (this.DiceMax + 10) / 20.0,
Brush = this.Brush
};
this.DiceList.Add(newDice);
}
private void RemoveDice(DiceViewModel oldDiceViewModel)
{
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
// Find the visual Dice to remove.
var dice = MainCanvas.Children
.Where(u => ((FrameworkElement)u).DataContext == oldDiceViewModel)
.FirstOrDefault() as Dice;
if (dice == null)
{
return;
}
// Remove the associated rect from the collection.
diceRects.Remove(oldDiceViewModel);
// Build the animation to remove the visual Dice.
var storyFadeOldDice = new Storyboard();
var fadeOutAnim = new FadeOutThemeAnimation
{
SpeedRatio = 0.5
};
Storyboard.SetTarget(fadeOutAnim, dice);
storyFadeOldDice.Children.Add(fadeOutAnim);
// Event to remove the old dice after animation.
storyFadeOldDice.Completed += (sender2, e2) =>
{
MainCanvas.Children.Remove(dice);
};
// Run the animation.
storyFadeOldDice.Begin();
});
}