private static bool updateChildData(AnimatingPanelItemData data, double dampening, double attractionFactor, double variation)
{
if (data == null)
{
return(false);
}
else
{
Debug.Assert(dampening > 0 && dampening < 1);
Debug.Assert(attractionFactor > 0 && !double.IsInfinity(attractionFactor));
attractionFactor *= 1 + (variation * data.RandomSeed - .5);
Point newLocation;
Vector newVelocity;
bool anythingChanged =
GeoHelper.Animate(data.Current, data.LocationVelocity, data.Target,
attractionFactor, dampening, c_terminalVelocity, c_diff, c_diff,
out newLocation, out newVelocity);
data.Current = newLocation;
data.LocationVelocity = newVelocity;
var transformVector = data.Current - data.Target;
data.Transform.SetToVector(transformVector);
return(anythingChanged);
}
}
private void m_listener_rendering(object sender, EventArgs e)
{
if (this.Child != m_zapPanel)
{
m_zapPanel = (PagingPanel)this.Child;
m_zapPanel.RenderTransform = m_traslateTransform;
}
if (m_zapPanel != null)
{
int actualTargetIndex = Math.Max(0, Math.Min(m_zapPanel.Children.Count - 1, TargetIndex));
double targetPercentOffset = -actualTargetIndex / (double)m_zapPanel.Children.Count;
targetPercentOffset = double.IsNaN(targetPercentOffset) ? 0 : targetPercentOffset;
bool stopListening = !GeoHelper.Animate(
m_percentOffset, m_velocity, targetPercentOffset,
.05, .3, .1, c_diff, c_diff,
out m_percentOffset, out m_velocity);
double targetPixelOffset = m_percentOffset * (this.RenderSize.Width * m_zapPanel.Children.Count);
m_traslateTransform.X = targetPixelOffset;
if (stopListening)
{
m_listener.StopListening();
}
}
}
private void m_listener_Rendering(object sender, EventArgs e)
{
bool stillAnimating = false;
foreach (SetCard3D card in m_cards)
{
double zTranslateTarget = (card.IsChecked) ? 50 : 0;
zTranslateTarget += (card.IsMouseOver) ? -10 : 0;
double attractionFactor = .05;
attractionFactor *= 1 + (card.Variation - .5);
double newTranslate, newVelocity;
stillAnimating = GeoHelper.Animate(card.TranslateTransform3D.OffsetZ, card.CurrentZVelocity, zTranslateTarget,
attractionFactor, .3, 1000, .00001, .00001,
out newTranslate, out newVelocity) || stillAnimating;
card.CurrentZVelocity = newVelocity;
card.TranslateTransform3D.OffsetZ = newTranslate;
}
if (!stillAnimating)
{
m_listener.StopListening();
}
}