private void addScreen(TutorialScreen screen)
{
var anim = new DoubleAnimation(0, 1, TimeSpan.FromSeconds(screenFadeTime));
screen.BeginAnimation(UIElement.OpacityProperty, anim);
this.tutorialPanel.Children.Add(screen);
screen.Initialise(this);
}
private void activateScreen(TutorialScreen screen)
{
if (this.activeScreen != null)
{
this.removeScreen(this.activeScreen, screen != null);
}
this.activeScreen = screen;
if (screen != null)
{
this.addScreen(screen);
}
}
private void removeScreen(TutorialScreen screen, bool waitForNextScreenToFadeIn)
{
var anim = new DoubleAnimation(0, TimeSpan.FromSeconds(screenFadeTime))
{
BeginTime = TimeSpan.FromSeconds(
waitForNextScreenToFadeIn ? screenFadeTime : 0)
};
anim.Completed += (sender, args) =>
{
this.tutorialPanel.Children.Remove(screen);
};
screen.BeginAnimation(UIElement.OpacityProperty, anim);
screen.IsEnabled = false;
screen.Cleanup();
}