public override void PresentStep(int index, PresentationViewController presentationViewController)
{
SCNTransaction.Begin();
switch (index)
{
case 0:
// Set the slide's title and subtitle and add some text
TextManager.SetTitle("Skinning");
TextManager.AddBulletAtLevel("Animate characters", 0);
TextManager.AddBulletAtLevel("Deform geometries with a skeleton", 0);
TextManager.AddBulletAtLevel("Joints and bones", 0);
// Animate the character
CharacterNode.AddAnimation(IdleAnimationGroup, new NSString("idleAnimation"));
// The character is hidden. Wait a little longer before showing it
// otherwise it may slow down the transition from the previous slide
var delayInSeconds = 1.5;
var popTime = new DispatchTime(DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0;
CharacterNode.Hidden = false;
CharacterNode.Opacity = 0;
SCNTransaction.Commit();
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.5;
SCNTransaction.AnimationTimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseIn);
CharacterNode.Opacity = 1;
SCNTransaction.Commit();
});
break;
case 1:
SCNTransaction.AnimationDuration = 1.5f;
//TODO SetShowsBones (true);
break;
case 2:
CharacterNode.AddAnimation(AnimationGroup1, new NSString("animation"));
break;
case 3:
SCNTransaction.AnimationDuration = 1.5f;
//TODO SetShowsBones (false);
break;
case 4:
CharacterNode.AddAnimation(AnimationGroup1, new NSString("animation"));
break;
}
SCNTransaction.Commit();
}