// </Snippet_GamePiece_PublicProperties>
/*******************************************/
// <Snippet_GamePiece_ProcessInertia>
#region ProcessInertia
public void ProcessInertia()
{
if (processInertia)
{
inertiaProcessor.Process(Timestamp);
}
}
public override void OnApplyTemplate()
{
// Set up the ContentPresenter.
_content = GetTemplateChild("PART_Content") as ContentPresenter;
_translate = new TranslateTransform();
_scale = new ScaleTransform();
_content.RenderTransform = new TransformGroup
{
Children = new TransformCollection {
_scale, _translate
}
};
_content.RenderTransformOrigin = new Point(.5, .5);
// Set up the spring animation.
_spring = new Storyboard {
Duration = TimeSpan.FromMilliseconds(200), FillBehavior = FillBehavior.Stop, DecelerationRatio = .6
};
_spring.Completed += Spring_Completed;
_springScaleX = new DoubleAnimation {
Duration = _spring.Duration, To = 1, DecelerationRatio = _spring.DecelerationRatio
};
Storyboard.SetTarget(_springScaleX, _content);
Storyboard.SetTargetProperty(_springScaleX, new PropertyPath("(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"));
_spring.Children.Add(_springScaleX);
_springScaleY = new DoubleAnimation {
Duration = _spring.Duration, To = 1, DecelerationRatio = _spring.DecelerationRatio
};
Storyboard.SetTarget(_springScaleY, _content);
Storyboard.SetTargetProperty(_springScaleY, new PropertyPath("(UIElement.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"));
_spring.Children.Add(_springScaleY);
_springTranslateX = new DoubleAnimation {
Duration = _spring.Duration, To = 0, DecelerationRatio = _spring.DecelerationRatio
};
Storyboard.SetTarget(_springTranslateX, _content);
Storyboard.SetTargetProperty(_springTranslateX, new PropertyPath("(UIElement.RenderTransform).(TransformGroup.Children)[1].(TranslateTransform.X)"));
_spring.Children.Add(_springTranslateX);
_springTranslateY = new DoubleAnimation {
Duration = _spring.Duration, To = 0, DecelerationRatio = _spring.DecelerationRatio
};
Storyboard.SetTarget(_springTranslateY, _content);
Storyboard.SetTargetProperty(_springTranslateY, new PropertyPath("(UIElement.RenderTransform).(TransformGroup.Children)[1].(TranslateTransform.Y)"));
_spring.Children.Add(_springTranslateY);
_spring.Begin(this, true);
ClipToBounds = true;
// Set up the ManipulationProcessor.
_contentManipulationProcessor = new ManipulationProcessor2D(Manipulations2D.Scale | Manipulations2D.TranslateX | Manipulations2D.TranslateY);
_contentManipulationProcessor.Started += ContentManipulationProcessor_Affine2DManipulationStarted;
_contentManipulationProcessor.Delta += ContentManipulationProcessor_Affine2DManipulationDelta;
_contentManipulationProcessor.Completed += ContentManipulationProcessor_Affine2DManipulationCompleted;
// Set up the InertiaProcessor.
_inertiaTimer = new DispatcherTimer {
Interval = TimeSpan.FromMilliseconds(30)
};
_inertiaTimer.Tick += (sender, e) => _inertiaProcessor.Process(DateTime.UtcNow.Ticks);
_inertiaProcessor = new InertiaProcessor2D();
_inertiaProcessor.Delta += ContentManipulationProcessor_Affine2DManipulationDelta;
_inertiaProcessor.Completed += (sender, e) => _inertiaTimer.Stop();
_inertiaProcessor.TranslationBehavior.DesiredDeceleration = (float)(96 * 1.5 * .001 * .001);
#warning ElasticMargin has been deprecated.
//// _inertiaProcessor.ElasticMargin = new Thickness(25);
base.OnApplyTemplate();
}
/// <summary>
/// Here when the inertia timer ticks.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnTimerTick(object sender, EventArgs e)
{
inertiaProcessor.Process(Timestamp);
}