private void StartUndoSquishAnimation()
{
// Build animation to undo squish
//
_unsquishAnimation = new Storyboard();
DoubleAnimation scaleAnimation = new DoubleAnimation();
_unsquishAnimationTranslation = new DoubleAnimation();
Storyboard.SetTarget(scaleAnimation, _rootTransform);
Storyboard.SetTarget(_unsquishAnimationTranslation, _rootTransform);
Storyboard.SetTargetProperty(scaleAnimation, new PropertyPath(CompositeTransform.ScaleXProperty));
Storyboard.SetTargetProperty(_unsquishAnimationTranslation, new PropertyPath(CompositeTransform.TranslateXProperty));
scaleAnimation.From = _rootTransform.ScaleX;
_unsquishAnimationTranslation.From = _rootTransform.TranslateX;
scaleAnimation.To = 1.0;
_unsquishAnimationTranslation.To = _dragState.UnsquishTranslationAnimationTarget;
scaleAnimation.Duration = new TimeSpan(0, 0, 0, 0, UnsquishAnimationMilliseconds);
_unsquishAnimationTranslation.Duration = scaleAnimation.Duration;
_unsquishAnimation.Children.Add(scaleAnimation);
_unsquishAnimation.Children.Add(_unsquishAnimationTranslation);
_unsquishAnimation.FillBehavior = FillBehavior.Stop;
_unsquishAnimation.Completed += UnsquishAnimationComplete;
_state = FlipperState.UnsquishAnimating;
_unsquishAnimation.Begin();
// Go ahead and set the values we're animating to their final values so when the storyboard ends, these will take effect
//
_rootTransform.ScaleX = scaleAnimation.To.Value;
_rootTransform.TranslateX = _unsquishAnimationTranslation.To.Value;
}
private void HandleSquishingWhileDragging(double newTranslation)
{
double translationOfLastItem = -1 * (ItemsSource.Count - 1) * (_size.Value.Width + ItemGutter);
double squishDistance = 0;
if (newTranslation > 0)
{
// We're squishing the first item
//
squishDistance = newTranslation;
_dragState.UnsquishTranslationAnimationTarget = 0;
_rootCanvas.RenderTransformOrigin = new Point(0, 0);
}
else if (newTranslation < translationOfLastItem)
{
// We're squishing the last item
//
squishDistance = translationOfLastItem - newTranslation;
_dragState.UnsquishTranslationAnimationTarget = translationOfLastItem;
_rootCanvas.RenderTransformOrigin = new Point(1, 0);
}
double squishScale = 1.0 - (squishDistance / MaxDraggingSquishDistance) * (1 - MinDraggingSquishScale);
// Apply the squish
//
_rootTransform.ScaleX = squishScale;
// Update our state
//
_state = squishScale == 1.0 ? FlipperState.Dragging : FlipperState.DraggingAndSquishing;
}
private void DragStartedEventHandler()
{
_state = FlipperState.Dragging;
_dragState.LastDragUpdateTime = DateTime.Now;
_dragState.DragStartingMediaStripOffset = _rootTransform.TranslateX;
_dragState.NetDragDistanceSincleLastDragStagnation = 0.0;
_dragState.IsDraggingFirstElement = SelectedIndex == 0;
_dragState.IsDraggingLastElement = SelectedIndex == ItemsSource.Count - 1;
_dragState.GotDragDelta = false;
}
private void AnimateToElement(int elementIndex, TimeSpan animationDuration)
{
double animationEndingValue = -1 * elementIndex * (_size.Value.Width + ItemGutter);
ConstructDragInertiaAnimation(animationEndingValue, animationDuration);
_state = FlipperState.InertiaAnimating;
_dragInertiaAnimation.Begin();
SelectedIndex = elementIndex;
}
private void UnsquishAnimationComplete(object sender, EventArgs e)
{
if (_state == FlipperState.UnsquishAnimating)
{
_state = FlipperState.Initialized;
}
_rootTransform.TranslateX = _unsquishAnimationTranslation.To.Value;
_unsquishAnimation.Stop();
_unsquishAnimation = null;
_unsquishAnimationTranslation = null;
}
private void StartDragInertiaAnimation()
{
TimeSpan lastDragTimeDelta = DateTime.Now - _dragState.LastDragUpdateTime;
// Build animation to finish the drag
//
int elementIndexDelta = CalculateDragInertiaAnimationEndingValue();
TimeSpan animationDuration = CalculateDragInertiaAnimationDuration(lastDragTimeDelta);
AnimateToElement(SelectedIndex + elementIndexDelta, animationDuration);
_state = FlipperState.InertiaAnimating;
}
private void CompleteDragInertiaAnimation()
{
if (_dragInertiaAnimation != null)
{
if (_state == FlipperState.InertiaAnimating)
{
_state = FlipperState.Initialized;
}
_rootTransform.TranslateX = _dragInertiaAnimationTranslation.To.Value;
_dragInertiaAnimation.Stop();
_dragInertiaAnimation = null;
_dragInertiaAnimationTranslation = null;
}
}
protected override void OnManipulationDelta(ManipulationDeltaEventArgs e)
{
base.OnManipulationDelta(e);
if (e.PinchManipulation == null)
{
bool isZoomed = SelectedIndex >= 0 && _containers[_displayedContainerIndex].IsZoomedIn;
if (!isZoomed && _state == FlipperState.Initialized && ItemsSource.Count > 0)
{
_state = FlipperState.Dragging;
DragStartedEventHandler();
}
if (_state == FlipperState.Dragging || _state == FlipperState.DraggingAndSquishing)
{
_dragState.GotDragDelta = true;
ProcessDragDelta(e.DeltaManipulation.Translation.X, e.DeltaManipulation.Translation.Y);
}
}
}
private void InitializeIfReady()
{
if (_state != FlipperState.Uninitialized || _size == null || _rootCanvas == null || ItemTemplate == null || ItemsSource == null)
{
return;
}
for (int i = 0; i < VirtualPoolSize; i++)
{
FrameworkElement root = (FrameworkElement)ItemTemplate.LoadContent();
root.Visibility = Visibility.Collapsed;
_containers[i] = new ContentFlipperContent(root, _size.Value);
_rootCanvas.Children.Add(root);
}
_state = FlipperState.Initialized;
ResetGeometry();
UpdateVirtualizedItemPositions();
UpdateViewport();
}
/// <summary>
/// Allows the game component to perform any initialization it needs to before starting
/// to run. This is where it can query for any required services and load content.
/// </summary>
public override void Initialize()
{
// TODO: Add your initialization code here
flipperTexture = playScene.game1.Content.Load <Texture2D>(flipperTextureName);
flipperState = FlipperState.STOP;
OK = true;
flipperPtTheta = new float[flipperPoints.Count()];
flipperPtRadius = new float[flipperPoints.Count()];
flipperAngle = flipperRestAngle;
for (int i = 0; i < flipperPoints.Count(); i++)
{
flipperPtTheta[i] = (float)Math.Atan2((flipperPoints[i].Y - flipperPivot.Y), (flipperPoints[i].X - flipperPivot.X));
flipperPtRadius[i] = (flipperPoints[i] - flipperPivot).Length();
flipperPoints[i].X = flipperPivot.X + flipperPtRadius[i] * (float)Math.Cos(flipperPtTheta[i] - flipperAngle);
flipperPoints[i].Y = flipperPivot.Y + flipperPtRadius[i] * (float)Math.Sin(flipperPtTheta[i] - flipperAngle);
}
flipperAngularSpeed = 0.09f;
flipperAngularSpeed = (float)Math.PI / 25;
flipperBounceFactor = 0.9f;
flipperLength = flipperPtRadius[1];
base.Initialize();
}
protected override void OnManipulationDelta(ManipulationDeltaEventArgs e)
{
base.OnManipulationDelta(e);
if (e.PinchManipulation == null)
{
bool isZoomed = SelectedIndex >= 0 && _containers[_displayedContainerIndex].IsZoomedIn;
if (!isZoomed && _state == FlipperState.Initialized && ItemsSource.Count > 0)
{
_state = FlipperState.Dragging;
DragStartedEventHandler();
}
if (_state == FlipperState.Dragging || _state == FlipperState.DraggingAndSquishing)
{
_dragState.GotDragDelta = true;
ProcessDragDelta(e.DeltaManipulation.Translation.X, e.DeltaManipulation.Translation.Y);
}
}
}
private void DragStartedEventHandler()
{
_state = FlipperState.Dragging;
_dragState.LastDragUpdateTime = DateTime.Now;
_dragState.DragStartingMediaStripOffset = _rootTransform.TranslateX;
_dragState.NetDragDistanceSincleLastDragStagnation = 0.0;
_dragState.IsDraggingFirstElement = SelectedIndex == 0;
_dragState.IsDraggingLastElement = SelectedIndex == ItemsSource.Count - 1;
_dragState.GotDragDelta = false;
}
private void CompleteDragInertiaAnimation()
{
if (_dragInertiaAnimation != null)
{
if (_state == FlipperState.InertiaAnimating)
{
_state = FlipperState.Initialized;
}
_rootTransform.TranslateX = _dragInertiaAnimationTranslation.To.Value;
_dragInertiaAnimation.Stop();
_dragInertiaAnimation = null;
_dragInertiaAnimationTranslation = null;
}
}
private void InitializeIfReady()
{
if (_state != FlipperState.Uninitialized || _size == null || _rootCanvas == null || ItemTemplate == null || ItemsSource == null)
{
return;
}
for (int i = 0; i < VirtualPoolSize; i++)
{
FrameworkElement root = (FrameworkElement)ItemTemplate.LoadContent();
root.Visibility = Visibility.Collapsed;
_containers[i] = new ContentFlipperContent(root, _size.Value);
_rootCanvas.Children.Add(root);
}
_state = FlipperState.Initialized;
ResetGeometry();
UpdateVirtualizedItemPositions();
UpdateViewport();
}
private void HandleSquishingWhileDragging(double newTranslation)
{
double translationOfLastItem = -1 * (ItemsSource.Count - 1) * (_size.Value.Width + ItemGutter);
double squishDistance = 0;
if (newTranslation > 0)
{
// We're squishing the first item
//
squishDistance = newTranslation;
_dragState.UnsquishTranslationAnimationTarget = 0;
_rootCanvas.RenderTransformOrigin = new Point(0, 0);
}
else if (newTranslation < translationOfLastItem)
{
// We're squishing the last item
//
squishDistance = translationOfLastItem - newTranslation;
_dragState.UnsquishTranslationAnimationTarget = translationOfLastItem;
_rootCanvas.RenderTransformOrigin = new Point(1, 0);
}
double squishScale = 1.0 - (squishDistance / MaxDraggingSquishDistance) * (1 - MinDraggingSquishScale);
// Apply the squish
//
_rootTransform.ScaleX = squishScale;
// Update our state
//
_state = squishScale == 1.0 ? FlipperState.Dragging : FlipperState.DraggingAndSquishing;
}
private void StartDragInertiaAnimation()
{
TimeSpan lastDragTimeDelta = DateTime.Now - _dragState.LastDragUpdateTime;
// Build animation to finish the drag
//
int elementIndexDelta = CalculateDragInertiaAnimationEndingValue();
TimeSpan animationDuration = CalculateDragInertiaAnimationDuration(lastDragTimeDelta);
AnimateToElement(SelectedIndex + elementIndexDelta, animationDuration);
_state = FlipperState.InertiaAnimating;
}
private void StartUndoSquishAnimation()
{
// Build animation to undo squish
//
_unsquishAnimation = new Storyboard();
DoubleAnimation scaleAnimation = new DoubleAnimation();
_unsquishAnimationTranslation = new DoubleAnimation();
Storyboard.SetTarget(scaleAnimation, _rootTransform);
Storyboard.SetTarget(_unsquishAnimationTranslation, _rootTransform);
Storyboard.SetTargetProperty(scaleAnimation, new PropertyPath(CompositeTransform.ScaleXProperty));
Storyboard.SetTargetProperty(_unsquishAnimationTranslation, new PropertyPath(CompositeTransform.TranslateXProperty));
scaleAnimation.From = _rootTransform.ScaleX;
_unsquishAnimationTranslation.From = _rootTransform.TranslateX;
scaleAnimation.To = 1.0;
_unsquishAnimationTranslation.To = _dragState.UnsquishTranslationAnimationTarget;
scaleAnimation.Duration = new TimeSpan(0, 0, 0, 0, UnsquishAnimationMilliseconds);
_unsquishAnimationTranslation.Duration = scaleAnimation.Duration;
_unsquishAnimation.Children.Add(scaleAnimation);
_unsquishAnimation.Children.Add(_unsquishAnimationTranslation);
_unsquishAnimation.FillBehavior = FillBehavior.Stop;
_unsquishAnimation.Completed += UnsquishAnimationComplete;
_state = FlipperState.UnsquishAnimating;
_unsquishAnimation.Begin();
// Go ahead and set the values we're animating to their final values so when the storyboard ends, these will take effect
//
_rootTransform.ScaleX = scaleAnimation.To.Value;
_rootTransform.TranslateX = _unsquishAnimationTranslation.To.Value;
}
private void UnsquishAnimationComplete(object sender, EventArgs e)
{
if (_state == FlipperState.UnsquishAnimating)
{
_state = FlipperState.Initialized;
}
_rootTransform.TranslateX = _unsquishAnimationTranslation.To.Value;
_unsquishAnimation.Stop();
_unsquishAnimation = null;
_unsquishAnimationTranslation = null;
}
/// <summary>
/// Allows the game component to perform any initialization it needs to before starting
/// to run. This is where it can query for any required services and load content.
/// </summary>
public override void Initialize()
{
// TODO: Add your initialization code here
flipperTexture = playScene.game1.Content.Load<Texture2D>(flipperTextureName);
flipperState = FlipperState.STOP;
OK = true;
flipperPtTheta = new float[flipperPoints.Count()];
flipperPtRadius = new float[flipperPoints.Count()];
flipperAngle = flipperRestAngle;
for (int i = 0; i < flipperPoints.Count(); i++)
{
flipperPtTheta[i] = (float)Math.Atan2((flipperPoints[i].Y - flipperPivot.Y), (flipperPoints[i].X - flipperPivot.X));
flipperPtRadius[i] = (flipperPoints[i] - flipperPivot).Length();
flipperPoints[i].X = flipperPivot.X + flipperPtRadius[i] * (float)Math.Cos(flipperPtTheta[i] - flipperAngle);
flipperPoints[i].Y = flipperPivot.Y + flipperPtRadius[i] * (float)Math.Sin(flipperPtTheta[i] - flipperAngle);
}
flipperAngularSpeed = 0.09f;
flipperAngularSpeed = (float)Math.PI / 25;
flipperBounceFactor = 0.9f;
flipperLength = flipperPtRadius[1];
base.Initialize();
}
private void AnimateToElement(int elementIndex, TimeSpan animationDuration)
{
double animationEndingValue = -1 * elementIndex * (_size.Value.Width + ItemGutter);
ConstructDragInertiaAnimation(animationEndingValue, animationDuration);
_state = FlipperState.InertiaAnimating;
_dragInertiaAnimation.Begin();
SelectedIndex = elementIndex;
}
