private void onIsHittingChanged(ValueChangedEvent <bool> isHitting)
{
// Update animate
InternalChildren.OfType <LayerContainer>().ForEach(x =>
{
x.Reset();
x.IsPlaying = isHitting.NewValue;
});
// Foreground sparkle
foreground.ClearTransforms(false, nameof(foreground.Colour));
foreground.Alpha = 0;
if (isHitting.NewValue)
{
foreground.Alpha = 1;
const float animation_length = 50;
// wait for the next sync point
double synchronisedOffset = animation_length * 2 - Time.Current % (animation_length * 2);
using (foreground.BeginDelayedSequence(synchronisedOffset))
foreground.FadeColour(AccentColour.Value.Lighten(0.7f), animation_length).Then().FadeColour(foreground.Colour, animation_length).Loop();
}
}