public void RestartExperience(NSObject sender)
{
if (!RestartExperienceButton.Enabled || IsLoadingObject)
{
return;
}
RestartExperienceButton.Enabled = false;
UserFeedback.CancelAllScheduledMessages();
UserFeedback.DismissPresentedAlert();
UserFeedback.ShowMessage("STARTING A NEW SESSION");
virtualObjectManager.RemoveAllVirtualObjects();
AddObjectButton.SetImage(UIImage.FromBundle("add"), UIControlState.Normal);
AddObjectButton.SetImage(UIImage.FromBundle("addPressed"), UIControlState.Highlighted);
if (FocusSquare != null)
{
FocusSquare.Hidden = true;
}
ResetTracking();
RestartExperienceButton.SetImage(UIImage.FromBundle("restart"), UIControlState.Normal);
// Disable Restart button for a second in order to give the session enough time to restart.
var when = new DispatchTime(DispatchTime.Now, new TimeSpan(0, 0, 1));
DispatchQueue.MainQueue.DispatchAfter(when, () => SetupFocusSquare());
}
public override int GetHashCode()
{
int hash = 1;
if (scheduleTime_ != null)
{
hash ^= ScheduleTime.GetHashCode();
}
if (dispatchTime_ != null)
{
hash ^= DispatchTime.GetHashCode();
}
if (responseTime_ != null)
{
hash ^= ResponseTime.GetHashCode();
}
if (responseStatus_ != null)
{
hash ^= ResponseStatus.GetHashCode();
}
if (_unknownFields != null)
{
hash ^= _unknownFields.GetHashCode();
}
return(hash);
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
// Set the slide's title
TextManager.SetTitle ("Labs");
// Add two labs
var lab1TitleNode = Utils.SCBoxNode ("Scene Kit Lab", new CGRect (-375, -35, 750, 70), NSColor.FromCalibratedWhite (0.15f, 1.0f), 0.0f, false);
lab1TitleNode.Scale = new SCNVector3 (0.02f, 0.02f, 0.02f);
lab1TitleNode.Position = new SCNVector3 (-2.8f, 30.7f, 10.0f);
lab1TitleNode.Rotation = new SCNVector4 (1, 0, 0, (float)(Math.PI));
lab1TitleNode.Opacity = 0.0f;
var lab2TitleNode = (SCNNode)lab1TitleNode.Copy ();
lab2TitleNode.Position = new SCNVector3 (-2.8f, 29.2f, 10.0f);
ContentNode.AddChildNode (lab1TitleNode);
ContentNode.AddChildNode (lab2TitleNode);
var lab1InfoNode = AddLabInfoNode ("\nGraphics and Games Lab A\nTuesday 4:00PM", 30.7f);
var lab2InfoNode = AddLabInfoNode ("\nGraphics and Games Lab A\nWednesday 9:00AM", 29.2f);
var delayInSeconds = 0.75;
var popTime = new DispatchTime (DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
lab1TitleNode.Opacity = lab2TitleNode.Opacity = 1.0f;
lab1TitleNode.Rotation = lab2TitleNode.Rotation = new SCNVector4 (1, 0, 0, 0);
lab1InfoNode.Opacity = lab2InfoNode.Opacity = 1.0f;
lab1InfoNode.Rotation = lab2InfoNode.Rotation = new SCNVector4 (0, 1, 0, 0);
SCNTransaction.Commit ();
});
}
private void ShowResult(IList <Barcode> barcodes, Action completion)
{
DispatchQueue.MainQueue.DispatchAsync(() =>
{
var result = new ScanResult(barcodes);
var alert = UIAlertController.Create("Scan Results", result.Text, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, action =>
{
DismissViewController(true, null);
completion.Invoke();
}));
this.PresentViewController(alert, true, () =>
{
if (!SettingsManager.Instance.ContinuousModeEnabled)
{
return;
}
var delta = new TimeSpan(0, 0, 0, 0, ShownDurationInContinuousModeInMilliSecs);
var dispatchTime = new DispatchTime(DispatchTime.Now, delta);
DispatchQueue.MainQueue.DispatchAfter(dispatchTime, () =>
{
this.DismissViewController(true, completion);
});
});
});
}
public void ButtonFinished(ButtonView button, UIView trackingView, UITouch location)
{
double delayInSeconds;
buttonDraggedToPad = false;
miniPadView.Layer.BorderWidth = 0;
CGPoint point = location.LocationInView(miniPadView);
if (miniPadView.PointInside(point, null))
{
UpdateScoreForDroppedButton(button);
UIView.Animate(.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation(10f * (float)Math.PI / 180), async() => {
await UIView.AnimateAsync(.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation(-10f * (float)Math.PI / 180));
await UIView.AnimateAsync(.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation(10f * (float)Math.PI / 180));
await UIView.AnimateAsync(.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation(-10f * (float)Math.PI / 180));
await UIView.AnimateAsync(.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation(0));
});
}
delayInSeconds = 0.5;
var popTime = new DispatchTime(DispatchTime.Now, (long)(delayInSeconds * NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, async() => {
await UIView.AnimateAsync(0.35f, () => {
CGRect bounds = trackingView.Bounds;
bounds.Size = new CGSize(10, 10);
trackingView.Bounds = bounds;
});
trackingView.RemoveFromSuperview();
});
}
public override void PresentStep (int index, PresentationViewController presentationViewController)
{
// Set the slide's title
TextManager.SetTitle ("Labs");
// Add two labs
var lab1TitleNode = Utils.SCBoxNode ("Scene Kit Lab", new CGRect (-375, -35, 750, 70), NSColor.FromCalibratedWhite (0.15f, 1.0f), 0.0f, false);
lab1TitleNode.Scale = new SCNVector3 (0.02f, 0.02f, 0.02f);
lab1TitleNode.Position = new SCNVector3 (-2.8f, 30.7f, 10.0f);
lab1TitleNode.Rotation = new SCNVector4 (1, 0, 0, (float)(Math.PI));
lab1TitleNode.Opacity = 0.0f;
var lab2TitleNode = (SCNNode)lab1TitleNode.Copy ();
lab2TitleNode.Position = new SCNVector3 (-2.8f, 29.2f, 10.0f);
ContentNode.AddChildNode (lab1TitleNode);
ContentNode.AddChildNode (lab2TitleNode);
var lab1InfoNode = AddLabInfoNode ("\nGraphics and Games Lab A\nTuesday 4:00PM", 30.7f);
var lab2InfoNode = AddLabInfoNode ("\nGraphics and Games Lab A\nWednesday 9:00AM", 29.2f);
var delayInSeconds = 0.75;
var popTime = new DispatchTime (DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
lab1TitleNode.Opacity = lab2TitleNode.Opacity = 1.0f;
lab1TitleNode.Rotation = lab2TitleNode.Rotation = new SCNVector4 (1, 0, 0, 0);
lab1InfoNode.Opacity = lab2InfoNode.Opacity = 1.0f;
lab1InfoNode.Rotation = lab2InfoNode.Rotation = new SCNVector4 (0, 1, 0, 0);
SCNTransaction.Commit ();
});
}
private void FailIfSimulator()
{
if (Runtime.Arch != Arch.SIMULATOR)
{
return;
}
Console.WriteLine("You will not be able to receive push notifications in the simulator.");
if (NSUserDefaults.StandardUserDefaults.BoolForKey("ua-simulator-warning-disabled"))
{
return;
}
UIAlertController alertController = UIAlertController.Create(title: "Notice", message: "You will not be able " +
"to receive push notifications in the simulator.",
preferredStyle: UIAlertControllerStyle.Alert);
UIAlertAction cancelAction = UIAlertAction.Create(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: null);
alertController.AddAction(cancelAction);
DispatchTime delay = new DispatchTime(DispatchTime.Now, 500000000);
DispatchQueue.MainQueue.DispatchAfter(delay, () =>
{
Window.RootViewController.PresentViewController(alertController, true, null);
});
}
private void adjustOffsetForTransition()
{
var currentPage = this.CurrentPage;
var popTime = new DispatchTime(DispatchTime.Now, (long)(NSEC_PER_SEC * 0.1) / NSEC_PER_SEC);
DispatchQueue.MainQueue.DispatchAfter(popTime, () => GotoPage(currentPage));
}
public override void DidSelectPost()
{
string shortenedUrl = "";
try
{
foreach (NSItemProvider itemProvider in this.ExtensionContext.InputItems[0].Attachments)
{
if (itemProvider.HasItemConformingTo(MobileCoreServices.UTType.URL))
{
itemProvider.LoadItem(MobileCoreServices.UTType.URL, null, async(item, error) =>
{
if (item is NSUrl)
{
var urlToShorten = ((NSUrl)item).AbsoluteUrl.ToString();
var request = new ShortRequest
{
TagWt = false,
TagUtm = false,
Campaign = ContentText,
Mediums = new List <string>()
{
"twitter"
},
Input = urlToShorten
};
var defaults = new NSUserDefaults(Constants.GroupName, NSUserDefaultsType.SuiteName);
var url = defaults.StringForKey(Constants.IOS_SettingsKey);
shortenedUrl = await ShorteningService.ShortenUrl(request, url);
InvokeOnMainThread(() =>
{
UIPasteboard clipboard = UIPasteboard.General;
clipboard.String = shortenedUrl;
UIAlertController alert = UIAlertController.Create("Share extension", $"https://{shortenedUrl} has been copied!", UIAlertControllerStyle.Alert);
PresentViewController(alert, true, () =>
{
var dt = new DispatchTime(DispatchTime.Now, TimeSpan.FromSeconds(1));
DispatchQueue.MainQueue.DispatchAfter(dt, () =>
{
ExtensionContext.CompleteRequest(null, null);
});
});
});
}
});
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
void StartSingleVariantAsync(int paramIndex)
{
var afterTime = new DispatchTime(DispatchTime.Now, (long)250 * NSEC_PER_MILISEC);
DispatchQueue.MainQueue.DispatchAfter(afterTime, () =>
{
StartSingleVariant(paramIndex);
});
}
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();
}
void goForthZombies()
{
manageVisibleZombies();
statusView.Status = "Your program has started. The zombies are massing";
const double delayInSeconds = 2;
var popTime = new DispatchTime(DispatchTime.Now, (long)(delayInSeconds * NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, ZombiesOnATimer);
}
public override void PresentStep (int index, PresentationViewController presentationViewController)
{
TextManager.SetTitle ("Creating a Scene");
TextManager.AddBulletAtLevel ("Creating programmatically", 0);
TextManager.AddBulletAtLevel ("Loading a scene from a file", 0);
var delayInSeconds = 1.0;
var popTime = new DispatchTime (DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
TextManager.HighlightBullet (1);
});
}
/// <summary>
/// Some view controllers that inherit from BaseViewController have UI elements, e.g., close button,
/// on the top in View stack that leads to it being read first by VO eventhough a UIAccessibility.PostNotification
/// is being called to indicate another element that should be in focus. This can be addressed by removing the UIView
/// that is read first to focus on the element that should be targeted by UIAccessibility.PostNotification call, and
/// put it back into accessibility elements after a short delay (1 sec).
/// </summary>
/// <param name="uiViewToDisable">UIView to be removed from VoiceOver reading hierarchy</param>
protected void PostAccessibilityNotificationAndReenableElement(UIView uiViewToDisable, UIView uiViewPostNotification)
{
if (UIAccessibility.IsVoiceOverRunning)
{
UIAccessibility.PostNotification(UIAccessibilityPostNotification.LayoutChanged, uiViewPostNotification);
uiViewToDisable.IsAccessibilityElement = false;
DispatchTime when = new DispatchTime(DispatchTime.Now, TimeSpan.FromSeconds(1));
DispatchQueue.MainQueue.DispatchAfter(when, () =>
{
uiViewToDisable.IsAccessibilityElement = true;
});
}
}
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 ();
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
TextManager.SetTitle("Creating a Scene");
TextManager.AddBulletAtLevel("Creating programmatically", 0);
TextManager.AddBulletAtLevel("Loading a scene from a file", 0);
var delayInSeconds = 1.0;
var popTime = new DispatchTime(DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
TextManager.HighlightBullet(1);
});
}
public void NeverTooLate()
{
Assert.That(DispatchTime.Now.Nanoseconds, Is.EqualTo(0), "Now");
Assert.That(DispatchTime.Forever.Nanoseconds, Is.EqualTo(unchecked ((ulong)~0)), "Forever");
var dt = new DispatchTime(1);
Assert.That(dt.Nanoseconds, Is.EqualTo(1), "1");
dt = new DispatchTime(DispatchTime.Now, 0);
Assert.That(dt.Nanoseconds, Is.Not.EqualTo(0), "!0");
var dt2 = new DispatchTime(dt, Int32.MaxValue);
Assert.That(dt2.Nanoseconds, Is.GreaterThan(dt.Nanoseconds), "later");
}
public void Start(Action <NSData, NSError> completionHandler)
{
this.completionHandler = completionHandler;
downloadState.Queue = new DispatchQueue("download_queue");
downloadState.Queue.DispatchAsync(() => {
try {
var data = NSData.FromUrl(downloadURL);
downloadState.DownloadTimer = new DispatchSource.Timer(downloadState.Queue);
int downloadedBytes = 0;
int randomMilliseconds = new Random().Next(0, 500);
var delay = new DispatchTime(DispatchTime.Now, (long)(TimerInterval * NanosecondsPerSecond - randomMilliseconds * NanosecondsPerMillisecond));
downloadState.DownloadTimer.SetTimer(delay, (long)TimerInterval * NanosecondsPerSecond, 0);
downloadState.DownloadTimer.SetEventHandler(() => {
downloadedBytes += (int)(BatchSize * TimerInterval);
if (downloadedBytes >= (int)data.Length)
{
downloadState.DownloadTimer.Cancel();
return;
}
DidDownloadData(downloadedBytes);
});
downloadState.DownloadTimer.SetCancelHandler(() => {
if (downloadedBytes >= (int)data.Length)
{
DidFinishDownload(data);
}
else
{
DidFailDownloadWithError(downloadState.DownloadError);
}
downloadState.DownloadTimer = null;
});
WillBeginDownload((int)data.Length);
downloadState.DownloadTimer.Resume();
} catch (Exception) {
var error = new NSError(NSError.CocoaErrorDomain, 0, null);
DidFailDownloadWithError(error);
}
});
}
bool TryLoadFirstBatch()
{
bool haveNoPost = PostCells.Count == 0 || lastPostSeenOnServer == null;
if (haveNoPost)
{
// We dispatch it after two seconds to give the server time to index the new post
// TODO: https://trello.com/c/cWWQXKYY
var dispatchTime = new DispatchTime(DispatchTime.Now, 2 * 1000000000);
DispatchQueue.MainQueue.DispatchAfter(dispatchTime, () => {
// If we get here, we must have no posts. That must mean that last time we tried loading a batch nothing came through so we locked the method. Let's unlock it
haveOldestPost = false;
LoadBatch();
});
}
return(haveNoPost);
}
partial void SaveButton_TouchUpInside(UIButton sender)
{
var s = new NSUserDefaults(Constants.GroupName, NSUserDefaultsType.SuiteName);
s.SetString(shortenedUrlLocation.Text, Constants.IOS_SettingsKey);
s.Synchronize();
UIAlertController alert = UIAlertController.Create("Share extension", "Shortening URL has been saved!", UIAlertControllerStyle.Alert);
PresentViewController(alert, true, () =>
{
var dt = new DispatchTime(DispatchTime.Now, TimeSpan.FromSeconds(1));
DispatchQueue.MainQueue.DispatchAfter(dt, () =>
{
alert.DismissViewController(true, null);
});
});
}
public void OpenToast(string text)
{
var rootViewController = UIApplication.SharedApplication.KeyWindow.RootViewController;
var alertController = UIAlertController.Create(string.Empty,
text,
UIAlertControllerStyle.Alert);
alertController.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
rootViewController.PresentViewController(alertController, true, () =>
{
var delayTime = new DispatchTime(DispatchTime.Now, 3000000000);
DispatchQueue.MainQueue.DispatchAlert(delayTime, () =>
{
alertController.DismissViewController(true, null);
});
});
}
void ZombiesOnATimer()
{
if (paused)
{
return;
}
TimerEvent eventType = nextZombieEvent();
statusView.Status = StringForZombieEvent(eventType);
meterView.ZombieLevel = meterView.ZombieLevel + ZombieFactorForEvent(eventType);
MonitorZombiePressure();
manageVisibleZombies();
var popTime = new DispatchTime(DispatchTime.Now, (long)6 * NSEC_PER_SEC);
DispatchQueue.MainQueue.DispatchAfter(popTime, ZombiesOnATimer);
}
public void Start (Action<NSData, NSError> completionHandler)
{
this.completionHandler = completionHandler;
downloadState.Queue = new DispatchQueue ("download_queue");
downloadState.Queue.DispatchAsync (() => {
try {
var data = NSData.FromUrl (downloadURL);
downloadState.DownloadTimer = new DispatchSource.Timer (downloadState.Queue);
int downloadedBytes = 0;
int randomMilliseconds = new Random ().Next (0, 500);
var delay = new DispatchTime (DispatchTime.Now, (long)(TimerInterval * NanosecondsPerSecond - randomMilliseconds * NanosecondsPerMillisecond));
downloadState.DownloadTimer.SetTimer (delay, (long)TimerInterval * NanosecondsPerSecond, 0);
downloadState.DownloadTimer.SetEventHandler (() => {
downloadedBytes += (int)(BatchSize * TimerInterval);
if (downloadedBytes >= (int)data.Length) {
downloadState.DownloadTimer.Cancel ();
return;
}
DidDownloadData (downloadedBytes);
});
downloadState.DownloadTimer.SetCancelHandler (() => {
if (downloadedBytes >= (int)data.Length)
DidFinishDownload (data);
else
DidFailDownloadWithError (downloadState.DownloadError);
downloadState.DownloadTimer = null;
});
WillBeginDownload ((int)data.Length);
downloadState.DownloadTimer.Resume ();
} catch (Exception) {
var error = new NSError (NSError.CocoaErrorDomain, 0, null);
DidFailDownloadWithError (error);
}
});
}
public void MergeFrom(Attempt other)
{
if (other == null)
{
return;
}
if (other.scheduleTime_ != null)
{
if (scheduleTime_ == null)
{
scheduleTime_ = new global::Google.Protobuf.WellKnownTypes.Timestamp();
}
ScheduleTime.MergeFrom(other.ScheduleTime);
}
if (other.dispatchTime_ != null)
{
if (dispatchTime_ == null)
{
dispatchTime_ = new global::Google.Protobuf.WellKnownTypes.Timestamp();
}
DispatchTime.MergeFrom(other.DispatchTime);
}
if (other.responseTime_ != null)
{
if (responseTime_ == null)
{
responseTime_ = new global::Google.Protobuf.WellKnownTypes.Timestamp();
}
ResponseTime.MergeFrom(other.ResponseTime);
}
if (other.responseStatus_ != null)
{
if (responseStatus_ == null)
{
responseStatus_ = new global::Google.Rpc.Status();
}
ResponseStatus.MergeFrom(other.ResponseStatus);
}
_unknownFields = pb::UnknownFieldSet.MergeFrom(_unknownFields, other._unknownFields);
}
public override void PresentStep (int index, PresentationViewController presentationViewController)
{
switch (index) {
case 0:
// Set the slide's title and subtitle and add some text
TextManager.SetTitle ("Constraints");
TextManager.SetSubtitle ("SCNConstraint");
TextManager.AddBulletAtLevel ("Applied sequentially at render time", 0);
TextManager.AddBulletAtLevel ("Only affect presentation values", 0);
TextManager.AddCode ("#aNode.#Constraints# = new SCNConstraint[] { aConstraint, anotherConstraint, ... };#");
// Tweak the near clipping plane of the spot light to get a precise shadow map
presentationViewController.SpotLight.Light.SetAttribute (new NSNumber (10), SCNLightAttribute.ShadowNearClippingKey);
break;
case 1:
// Remove previous text
TextManager.FlipOutText (SlideTextManager.TextType.Subtitle);
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.FlipOutText (SlideTextManager.TextType.Code);
// Add new text
TextManager.SetSubtitle ("SCNLookAtConstraint");
TextManager.AddBulletAtLevel ("Makes a node to look at another node", 0);
TextManager.AddCode ("#nodeA.Constraints = new SCNConstraint[] { #SCNLookAtConstraint.Create# (nodeB) };#");
TextManager.FlipInText (SlideTextManager.TextType.Subtitle);
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Code);
break;
case 2:
// Setup the scene
SetupLookAtScene ();
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
// Dim the text and move back a little bit
TextManager.TextNode.Opacity = 0.5f;
presentationViewController.CameraHandle.Position = presentationViewController.CameraNode.ConvertPositionToNode (new SCNVector3 (0, 0, 5.0f), presentationViewController.CameraHandle.ParentNode);
SCNTransaction.Commit ();
break;
case 3:
// Add constraints to the arrows
var container = ContentNode.FindChildNode ("arrowContainer", true);
// "Look at" constraint
var constraint = SCNLookAtConstraint.Create (BallNode);
var i = 0;
foreach (var arrow in container.ChildNodes) {
var delayInSeconds = 0.1 * i++;
var popTime = new DispatchTime (DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
// Animate to the result of applying the constraint
((SCNNode)arrow.ChildNodes [0]).Rotation = new SCNVector4 (0, 1, 0, (float)(Math.PI / 2));
arrow.Constraints = new SCNConstraint[] { constraint };
SCNTransaction.Commit ();
});
}
break;
case 4:
// Create a keyframe animation to move the ball
var animation = CAKeyFrameAnimation.GetFromKeyPath ("position");
animation.KeyTimes = new NSNumber[] {
0.0f,
(1.0f / 8.0f),
(2.0f / 8.0f),
(3.0f / 8.0f),
(4.0f / 8.0f),
(5.0f / 8.0f),
(6.0f / 8.0f),
(7.0f / 8.0f),
1.0f
};
animation.Values = new NSObject[] {
NSValue.FromVector (new SCNVector3 (0, 0.0f, 0)),
NSValue.FromVector (new SCNVector3 (20.0f, 0.0f, 20.0f)),
NSValue.FromVector (new SCNVector3 (40.0f, 0.0f, 0)),
NSValue.FromVector (new SCNVector3 (20.0f, 0.0f, -20.0f)),
NSValue.FromVector (new SCNVector3 (0, 0.0f, 0)),
NSValue.FromVector (new SCNVector3 (-20.0f, 0.0f, 20.0f)),
NSValue.FromVector (new SCNVector3 (-40.0f, 0.0f, 0)),
NSValue.FromVector (new SCNVector3 (-20.0f, 0.0f, -20.0f)),
NSValue.FromVector (new SCNVector3 (0, 0.0f, 0))
};
animation.CalculationMode = CAKeyFrameAnimation.AnimationCubicPaced; // smooth the movement between keyframes
animation.RepeatCount = float.MaxValue;
animation.Duration = 10.0f;
animation.TimingFunction = CAMediaTimingFunction.FromName (CAMediaTimingFunction.Linear);
BallNode.AddAnimation (animation, new NSString ("ballNodeAnimation"));
// Rotate the ball to give the illusion of a rolling ball
// We need two animations to do that:
// - one rotation to orient the ball in the right direction
// - one rotation to spin the ball
animation = CAKeyFrameAnimation.GetFromKeyPath ("rotation");
animation.KeyTimes = new NSNumber[] {
0.0f,
(0.7f / 8.0f),
(1.0f / 8.0f),
(2.0f / 8.0f),
(3.0f / 8.0f),
(3.3f / 8.0f),
(4.7f / 8.0f),
(5.0f / 8.0f),
(6.0f / 8.0f),
(7.0f / 8.0f),
(7.3f / 8.0f),
1.0f
};
animation.Values = new NSObject[] {
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI / 4))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI / 4))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI / 2))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI + Math.PI / 2))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI * 2 - Math.PI / 4))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI * 2 - Math.PI / 4))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI * 2 - Math.PI / 2))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI - Math.PI / 2))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI / 4))),
NSValue.FromVector (new SCNVector4 (0, 1, 0, (float)(Math.PI / 4)))
};
animation.RepeatCount = float.MaxValue;
animation.Duration = 10.0f;
animation.TimingFunction = CAMediaTimingFunction.FromName (CAMediaTimingFunction.Linear);
BallNode.AddAnimation (animation, new NSString ("ballNodeAnimation2"));
var rotationAnimation = CABasicAnimation.FromKeyPath ("rotation");
rotationAnimation.Duration = 1.0f;
rotationAnimation.RepeatCount = float.MaxValue;
rotationAnimation.To = NSValue.FromVector (new SCNVector4 (1, 0, 0, (float)(Math.PI * 2)));
BallNode.ChildNodes [1].AddAnimation (rotationAnimation, new NSString ("ballNodeRotation"));
break;
case 5:
// Add a constraint to the camera
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
constraint = SCNLookAtConstraint.Create (BallNode);
presentationViewController.CameraNode.Constraints = new SCNConstraint[] { constraint };
SCNTransaction.Commit ();
break;
case 6:
// Add a constraint to the light
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
var cameraTarget = ContentNode.FindChildNode ("cameraTarget", true);
constraint = SCNLookAtConstraint.Create (cameraTarget);
presentationViewController.SpotLight.Constraints = new SCNConstraint[] { constraint };
SCNTransaction.Commit ();
break;
}
}
public override void PresentStep (int switchIndex, PresentationViewController presentationViewController)
{
switch (switchIndex) {
case 0:
// Set the slide's title and subtitle and add some text
TextManager.SetTitle ("Core Image");
TextManager.SetSubtitle ("CI Filters");
TextManager.AddBulletAtLevel ("Screen-space effects", 0);
TextManager.AddBulletAtLevel ("Applies to a node hierarchy", 0);
TextManager.AddBulletAtLevel ("Filter parameters are animatable", 0);
TextManager.AddCode ("#aNode.#Filters# = new CIFilter[] { filter1, filter2 };#");
break;
case 1:
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1.0f;
// Dim the text and move back a little
TextManager.TextNode.Opacity = 0.0f;
presentationViewController.CameraHandle.Position = presentationViewController.CameraNode.ConvertPositionToNode (new SCNVector3 (0, 0, 5.0f), presentationViewController.CameraHandle.ParentNode);
SCNTransaction.Commit ();
// Reveal the grid
GroupNode.Opacity = 1;
break;
case 2:
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
// Highlight an item
HighlightContact (13, presentationViewController);
SCNTransaction.Commit ();
break;
case 3:
var index = 13;
var subStep = 0;
// Successively select items
for (var i = 0; i < 5; ++i) {
var popTime = new DispatchTime (DispatchTime.Now, (Int64)(i * 0.2 * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 0.2f;
UnhighlightContact (index);
if (subStep++ == 3)
index += ColumnCount;
else
index++;
HighlightContact (index, presentationViewController);
SCNTransaction.Commit ();
});
}
break;
case 4:
// BLUR+DESATURATE in the background, GLOW in the foreground
// Here we will change the node hierarchy in order to group all the nodes in the background under a single node.
// This way we can use a single Core Image filter and apply it on the whole grid, and have another CI filter for the node in the foreground.
var selectionParent = HeroNode.ParentNode;
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 0;
// Stop the animations of the selected node
HeroNode.Transform = HeroNode.PresentationNode.Transform; // set the current rotation to the current presentation value
HeroNode.RemoveAllAnimations ();
// Re-parent the node by preserving its world tranform
var wantedWorldTransform = selectionParent.WorldTransform;
GroupNode.ParentNode.AddChildNode (selectionParent);
selectionParent.Transform = selectionParent.ParentNode.ConvertTransformFromNode (wantedWorldTransform, null);
SCNTransaction.Commit ();
// Add CIFilters
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
// A negative 'centerX' value means no scaling.
//TODO HeroNode.Filters [0].SetValueForKey (new NSNumber (-1), new NSString ("centerX"));
// Move the selection to the foreground
selectionParent.Rotation = new SCNVector4 (0, 1, 0, 0);
HeroNode.Transform = ContentNode.ConvertTransformToNode (SCNMatrix4.CreateTranslation (0, Altitude, 29), selectionParent);
HeroNode.Scale = new SCNVector3 (1, 1, 1);
HeroNode.Rotation = new SCNVector4 (1, 0, 0, -(float)(Math.PI / 4) * 0.25f);
// Upon completion, rotate the selection forever
SCNTransaction.SetCompletionBlock (() => {
var animation = CABasicAnimation.FromKeyPath ("rotation");
animation.Duration = 4.0f;
animation.From = NSValue.FromVector (new SCNVector4 (0, 1, 0, 0));
animation.To = NSValue.FromVector (new SCNVector4 (0, 1, 0, NMath.PI * 2));
animation.TimingFunction = CAMediaTimingFunction.FromName (CAMediaTimingFunction.EaseInEaseOut);
animation.RepeatCount = float.MaxValue;
HeroNode.ChildNodes [0].AddAnimation (animation, new NSString ("heroNodeAnimation"));
});
// Add the filters
var blurFilter = CIFilter.FromName ("CIGaussianBlur");
blurFilter.SetDefaults ();
blurFilter.Name = "blur";
blurFilter.SetValueForKey (new NSNumber (0), CIFilterInputKey.Radius);
var desaturateFilter = CIFilter.FromName ("CIColorControls");
desaturateFilter.SetDefaults ();
desaturateFilter.Name = "desaturate";
GroupNode.Filters = new CIFilter[] { blurFilter, desaturateFilter };
SCNTransaction.Commit ();
// Increate the blur radius and desaturate progressively
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 2;
GroupNode.SetValueForKey (new NSNumber (10), new NSString ("filters.blur.inputRadius"));
GroupNode.SetValueForKey (new NSNumber (0.1), new NSString ("filters.desaturate.inputSaturation"));
SCNTransaction.Commit ();
break;
}
}
void PerformRandomUpdate()
{
if (WifiEnabled && ScanForNetworks)
{
var updatedNetworks = new List <Network> ();
if (AvailableNetworks != null)
{
updatedNetworks.AddRange(AvailableNetworks);
}
if (updatedNetworks.Count == 0)
{
AvailableNetworks = allNetworks;
}
else
{
var random = new Random(DateTime.Now.Millisecond);
var shouldRemove = random.Next(0, 3) == 0;
if (shouldRemove)
{
var removeCount = random.Next(0, updatedNetworks.Count);
for (int i = 0; i < removeCount; i++)
{
var removeIndex = random.Next(0, updatedNetworks.Count);
updatedNetworks.RemoveAt(removeIndex);
}
}
var shouldAdd = random.Next(0, 3) == 0;
if (shouldAdd)
{
var allNetworksSet = new List <Network> (allNetworks);
var updatedNetworksSet = new List <Network> (updatedNetworks);
var notPresentNetworksSet = new List <Network> (allNetworksSet);
foreach (var network in updatedNetworksSet)
{
notPresentNetworksSet.Remove(network);
}
if (notPresentNetworksSet.Count > 0)
{
var addCount = random.Next(0, notPresentNetworksSet.Count);
for (int i = 0; i < addCount; i++)
{
var removeIndex = random.Next(0, notPresentNetworksSet.Count);
var networkToAdd = notPresentNetworksSet [removeIndex];
notPresentNetworksSet.Remove(networkToAdd);
updatedNetworksSet.Add(networkToAdd);
}
}
updatedNetworks = updatedNetworksSet;
}
UpdateAvailableNetworks(updatedNetworks.ToArray());
}
// notify
updateHandler(this);
}
var deadline = new DispatchTime(DispatchTime.Now, new TimeSpan(0, 0, 4));
DispatchQueue.MainQueue.DispatchAfter(deadline, () => PerformRandomUpdate());
}
void zombiesOnATimer ()
{
if (paused)
return;
TimerEvent eventType = nextZombieEvent ();
statusView.Status = stringForZombieEvent (eventType);
meterView.ZombieLevel = meterView.ZombieLevel + zombieFactorForEvent (eventType);
monitorZombiePressure ();
manageVisibleZombies ();
var popTime = new DispatchTime (DispatchTime.Now, (long)6 * NSEC_PER_SEC);
DispatchQueue.MainQueue.DispatchAfter (popTime, () => zombiesOnATimer ());
}
public override string ToString()
{
var str = Message + " DispatchTime: " + DispatchTime.ToString("hh:mm:ss.fffffff");
return(str);
}
public override void PresentStep(int switchIndex, PresentationViewController presentationViewController)
{
switch (switchIndex)
{
case 0:
// Set the slide's title and subtitle and add some text
TextManager.SetTitle("Core Image");
TextManager.SetSubtitle("CI Filters");
TextManager.AddBulletAtLevel("Screen-space effects", 0);
TextManager.AddBulletAtLevel("Applies to a node hierarchy", 0);
TextManager.AddBulletAtLevel("Filter parameters are animatable", 0);
TextManager.AddCode("#aNode.#Filters# = new CIFilter[] { filter1, filter2 };#");
break;
case 1:
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1.0f;
// Dim the text and move back a little
TextManager.TextNode.Opacity = 0.0f;
presentationViewController.CameraHandle.Position = presentationViewController.CameraNode.ConvertPositionToNode(new SCNVector3(0, 0, 5.0f), presentationViewController.CameraHandle.ParentNode);
SCNTransaction.Commit();
// Reveal the grid
GroupNode.Opacity = 1;
break;
case 2:
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
// Highlight an item
HighlightContact(13, presentationViewController);
SCNTransaction.Commit();
break;
case 3:
var index = 13;
var subStep = 0;
// Successively select items
for (var i = 0; i < 5; ++i)
{
var popTime = new DispatchTime(DispatchTime.Now, (long)(i * 0.2 * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.2f;
UnhighlightContact(index);
if (subStep++ == 3)
{
index += ColumnCount;
}
else
{
index++;
}
HighlightContact(index, presentationViewController);
SCNTransaction.Commit();
});
}
break;
case 4:
// BLUR+DESATURATE in the background, GLOW in the foreground
// Here we will change the node hierarchy in order to group all the nodes in the background under a single node.
// This way we can use a single Core Image filter and apply it on the whole grid, and have another CI filter for the node in the foreground.
var selectionParent = HeroNode.ParentNode;
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0;
// Stop the animations of the selected node
HeroNode.Transform = HeroNode.PresentationNode.Transform; // set the current rotation to the current presentation value
HeroNode.RemoveAllAnimations();
// Re-parent the node by preserving its world tranform
var wantedWorldTransform = selectionParent.WorldTransform;
GroupNode.ParentNode.AddChildNode(selectionParent);
selectionParent.Transform = selectionParent.ParentNode.ConvertTransformFromNode(wantedWorldTransform, null);
SCNTransaction.Commit();
// Add CIFilters
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
// A negative 'centerX' value means no scaling.
//TODO HeroNode.Filters [0].SetValueForKey (new NSNumber (-1), new NSString ("centerX"));
// Move the selection to the foreground
selectionParent.Rotation = new SCNVector4(0, 1, 0, 0);
HeroNode.Transform = ContentNode.ConvertTransformToNode(SCNMatrix4.CreateTranslation(0, Altitude, 29), selectionParent);
HeroNode.Scale = new SCNVector3(1, 1, 1);
HeroNode.Rotation = new SCNVector4(1, 0, 0, -(float)(Math.PI / 4) * 0.25f);
// Upon completion, rotate the selection forever
SCNTransaction.SetCompletionBlock(() => {
var animation = CABasicAnimation.FromKeyPath("rotation");
animation.Duration = 4.0f;
animation.From = NSValue.FromVector(new SCNVector4(0, 1, 0, 0));
animation.To = NSValue.FromVector(new SCNVector4(0, 1, 0, NMath.PI * 2));
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
animation.RepeatCount = float.MaxValue;
HeroNode.ChildNodes [0].AddAnimation(animation, new NSString("heroNodeAnimation"));
});
// Add the filters
var blurFilter = CIFilter.FromName("CIGaussianBlur");
blurFilter.SetDefaults();
blurFilter.Name = "blur";
blurFilter.SetValueForKey(new NSNumber(0), CIFilterInputKey.Radius);
var desaturateFilter = CIFilter.FromName("CIColorControls");
desaturateFilter.SetDefaults();
desaturateFilter.Name = "desaturate";
GroupNode.Filters = new CIFilter[] { blurFilter, desaturateFilter };
SCNTransaction.Commit();
// Increate the blur radius and desaturate progressively
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 2;
GroupNode.SetValueForKey(new NSNumber(10), new NSString("filters.blur.inputRadius"));
GroupNode.SetValueForKey(new NSNumber(0.1), new NSString("filters.desaturate.inputSaturation"));
SCNTransaction.Commit();
break;
}
}
void goForthZombies ()
{
manageVisibleZombies ();
statusView.Status = "Your program has started. The zombies are massing";
double delayInSeconds = 2;
var popTime = new DispatchTime (DispatchTime.Now, (long)(delayInSeconds * NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => zombiesOnATimer ());
}
void PresentStep (nint step)
{
var overlay = (SpriteKitOverlayScene)((SCNView)View).OverlayScene;
if (CameraHandleTransforms [(int)step].M11 == 0) {
CameraHandleTransforms [(int)step] = CameraHandle.Transform;
CameraOrientationTransforms [(int)step] = CameraOrientation.Transform;
}
switch (step) {
case 1:
overlay.ShowLabel ("Physics");
overlay.RunAction (SKAction.Sequence (new [] { SKAction.WaitForDuration (2), SKAction.Run (() => {
if (Step == 1)
overlay.ShowLabel (null);
})
}));
var popTime = new DispatchTime (DispatchTime.Now, (long)(0.0 * NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, ShowPhysicsSlide);
break;
case 2:
overlay.ShowLabel ("Particles");
overlay.RunAction (SKAction.Sequence (new [] { SKAction.WaitForDuration (4), SKAction.Run (() => {
if (Step == 2)
overlay.ShowLabel (null);
})
}));
ShowParticlesSlide ();
break;
case 3:
overlay.ShowLabel ("Physics Fields");
overlay.RunAction (SKAction.Sequence (new [] { SKAction.WaitForDuration (2), SKAction.Run (() => {
if (Step == 3)
overlay.ShowLabel (null);
})
}));
ShowPhysicsFields ();
break;
case 4:
overlay.ShowLabel ("SceneKit + SpriteKit");
overlay.RunAction (SKAction.Sequence (new [] { SKAction.WaitForDuration (4), SKAction.Run (() => {
if (Step == 4)
overlay.ShowLabel (null);
})
}));
ShowSpriteKitSlide ();
break;
case 5:
overlay.ShowLabel ("SceneKit + Shaders");
ShowShadersSlide ();
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
Step = index;
switch (index)
{
case 0:
break;
case 1:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.SetSubtitle("SCNPhysicsBody");
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.AddBulletAtLevel("Dynamic Bodies", 0);
// Add some code
TextManager.AddCode("#// Make a node dynamic\n"
+ "aNode.#physicsBody# = [SCNPhysicsBody #dynamicBody#];#");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
case 2:
//add a cube
var worldPos = GroundNode.ConvertPositionToNode(new SCNVector3(0, 12, 2), null);
var dice = CreateBlock(worldPos, new SCNVector3(1.5f, 1.5f, 1.5f));
dice.PhysicsBody = null; //wait!
dice.Rotation = new SCNVector4(0, 0, 1, (float)(Math.PI / 4) * 0.5f);
dice.Scale = new SCNVector3(0.001f, 0.001f, 0.001f);
((SCNView)presentationViewController.View).Scene.RootNode.AddChildNode(dice);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
dice.Scale = new SCNVector3(2, 2, 2);
SCNTransaction.Commit();
Dices.Add(dice);
break;
case 3:
foreach (var node in Dices)
{
node.PhysicsBody = SCNPhysicsBody.CreateDynamicBody();
}
break;
case 4:
PresentDices(presentationViewController);
break;
case 5:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.AddBulletAtLevel("Manipulate with forces", 0);
// Add some code
TextManager.AddCode("#// Apply an impulse\n"
+ "[aNode.physicsBody #applyForce:#aVector3 #atPosition:#aVector3 #impulse:#YES];#");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
case 6:
// remove dices
var center = new SCNVector3(0, -5, 20);
center = GroundNode.ConvertPositionToNode(center, null);
Explosion(center, Dices);
var popTime = new DispatchTime(DispatchTime.Now, (long)(1 * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Static Bodies", 0);
TextManager.AddCode("#// Make a node static\n"
+ "aNode.#physicsBody# = [SCNPhysicsBody #staticBody#];#");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
});
break;
case 7:
PresentWalls(presentationViewController);
break;
case 8:
PresentBalls(presentationViewController);
break;
case 9:
//remove walls
var walls = new List <SCNNode> ();
GroundNode.EnumerateChildNodes(delegate(SCNNode node, out bool stop) {
stop = false;
if (node.Name == "container-wall")
{
node.RunAction(SCNAction.Sequence(new SCNAction [] {
SCNAction.MoveBy(new SCNVector3(0, -2, 0), 0.5),
SCNAction.RemoveFromParentNode()
}));
walls.Add(node);
}
return(stop);
});
break;
case 10:
// remove balls
center = new SCNVector3(0, -5, 5);
center = GroundNode.ConvertPositionToNode(center, null);
Explosion(center, Balls);
popTime = new DispatchTime(DispatchTime.Now, (long)(0.5 * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel("Kinematic Bodies", 0);
TextManager.AddCode("#// Make a node kinematic\n"
+ "aNode.#physicsBody# = [SCNPhysicsBody #kinematicBody#];#");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
});
break;
case 11:
var boxNode = SCNNode.Create();
boxNode.Geometry = SCNBox.Create(10, 0.2f, 10, 0);
boxNode.Position = new SCNVector3(0, 5, MIDDLE_Z);
boxNode.Geometry.FirstMaterial.Emission.Contents = NSColor.DarkGray;
boxNode.PhysicsBody = SCNPhysicsBody.CreateKinematicBody();
boxNode.RunAction(SCNAction.RepeatActionForever(SCNAction.RotateBy(0, 0, NMath.PI * 2, 2.0)));
GroundNode.AddChildNode(boxNode);
KinematicItems.Add(boxNode);
var invisibleWall = SCNNode.Create();
invisibleWall.Geometry = SCNBox.Create(4, 40, 10, 0);
invisibleWall.Position = new SCNVector3(-7, 0, MIDDLE_Z);
invisibleWall.Geometry.FirstMaterial.Transparency = 0;
invisibleWall.PhysicsBody = SCNPhysicsBody.CreateStaticBody();
GroundNode.AddChildNode(invisibleWall);
KinematicItems.Add(invisibleWall);
invisibleWall = (SCNNode)invisibleWall.Copy();
invisibleWall.Position = new SCNVector3(7, 0, MIDDLE_Z);
GroundNode.AddChildNode(invisibleWall);
KinematicItems.Add(invisibleWall);
invisibleWall = (SCNNode)invisibleWall.Copy();
invisibleWall.Geometry = SCNBox.Create(10, 40, 4, 0);
invisibleWall.Geometry.FirstMaterial.Transparency = 0;
invisibleWall.Position = new SCNVector3(0, 0, MIDDLE_Z - 7);
invisibleWall.PhysicsBody = SCNPhysicsBody.CreateStaticBody();
GroundNode.AddChildNode(invisibleWall);
KinematicItems.Add(invisibleWall);
invisibleWall = (SCNNode)invisibleWall.Copy();
invisibleWall.Position = new SCNVector3(0, 0, MIDDLE_Z + 7);
GroundNode.AddChildNode(invisibleWall);
KinematicItems.Add(invisibleWall);
for (int i = 0; i < 100; i++)
{
var ball = SCNNode.Create();
worldPos = boxNode.ConvertPositionToNode(new SCNVector3(RandFloat(-4, 4), RandFloat(10, 30), RandFloat(-1, 4)), null);
ball.Position = worldPos;
ball.Geometry = SCNSphere.Create(0.5f);
ball.Geometry.FirstMaterial.Diffuse.Contents = NSColor.Cyan;
ball.PhysicsBody = SCNPhysicsBody.CreateDynamicBody();
((SCNView)presentationViewController.View).Scene.RootNode.AddChildNode(ball);
KinematicItems.Add(ball);
}
break;
case 12:
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle("SCNPhysicsShape");
TextManager.AddCode("#// Configure the physics shape\n\n"
+ "aNode.physicsBody.#physicsShape# = \n\t[#SCNPhysicsShape# shapeWithGeometry:aGeometry options:options];#");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
KinematicItems[0].RunAction(SCNAction.Sequence(new SCNAction[] {
SCNAction.FadeOut(0.5),
SCNAction.RemoveFromParentNode()
}));
for (int i = 1; i < 5; i++)
{
KinematicItems[i].RemoveFromParentNode();
}
KinematicItems = null;
break;
case 13:
//add meshes
PresentMeshes(presentationViewController);
break;
case 14:
// remove meshes
center = new SCNVector3(0, -5, 20);
center = GroundNode.ConvertPositionToNode(center, null);
Explosion(center, Meshes);
break;
case 15:
// add shapes
PresentPrimitives(presentationViewController);
break;
case 16:
// remove shapes
center = new SCNVector3(0, -5, 20);
center = GroundNode.ConvertPositionToNode(center, null);
Explosion(center, Shapes);
popTime = new DispatchTime(DispatchTime.Now, (long)(0.5 * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle("SCNPhysicsBehavior");
TextManager.AddCode("#// setup a physics behavior\n\n"
+ "#SCNPhysicsHingeJoint# *joint = [SCNPhysicsHingeJoint\n\n"
+ "jointWithBodyA:#nodeA.physicsBody# axisA:[...] anchorA:[...]\n\n"
+ "bodyB:#nodeB.physicsBody# axisB:[...] anchorB:[...]];\n\n\n"
+ "[scene.#physicsWorld# addBehavior:joint];#");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Code);
});
break;
case 17:
//add meshes
PresentHinge(presentationViewController);
break;
case 18:
//remove constraints
((SCNView)presentationViewController.View).Scene.PhysicsWorld.RemoveAllBehaviors();
foreach (var node in Hinges)
{
node.RunAction(SCNAction.Sequence(new SCNAction[] { SCNAction.Wait(3.0), SCNAction.FadeOut(0.5), SCNAction.RemoveFromParentNode() }));
}
break;
case 19:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.FlipOutText(SlideTextManager.TextType.Code);
TextManager.SetSubtitle("More...");
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.AddBulletAtLevel("SCNPhysicsField", 0);
TextManager.AddBulletAtLevel("SCNPhysicsVehicle", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
}
}
void PreventAccidentalNext (nfloat delay)
{
PreventNext = true;
//disable the next button for "delay" seconds to prevent accidental tap
var overlay = (SpriteKitOverlayScene)((SCNView)View).OverlayScene;
overlay.NextButton.RunAction (SKAction.FadeAlphaBy (-0.5f, 0.5f));
overlay.PreviousButton.RunAction (SKAction.FadeAlphaBy (-0.5f, 0.5f));
var popTime = new DispatchTime (DispatchTime.Now, (long)(delay * NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
PreventNext = false;
overlay.PreviousButton.RunAction (SKAction.FadeAlphaTo (Step > 1 ? 1 : 0, 0.75f));
overlay.NextButton.RunAction (SKAction.FadeAlphaTo (IntroductionStep == 0 && Step < 5 ? 1 : 0, 0.75f));
});
}
public void HandlePan (CGPoint p)
{
var scnView = (SCNView)this.View;
if (Step == 2) {
//particles
var pTmp = scnView.ProjectPoint (new SCNVector3 (0, 0, 0));
var p3d = scnView.UnprojectPoint (new SCNVector3 (p.X, p.Y, pTmp.Z));
var handlePos = Handle.WorldTransform;
var dy = (float)Math.Max (0, p3d.Y - handlePos.M42);
var dx = handlePos.M41 - p3d.X;
var angle = (float)Math.Atan2 (dy, dx);
angle -= 35.0f * (float)Math.PI / 180.0f; //handle is 35 degree by default
//clamp
if (angle < MIN_ANGLE)
angle = MIN_ANGLE;
if (angle > MAX_ANGLE)
angle = MAX_ANGLE;
var popTime = new DispatchTime (DispatchTime.Now, (long)(HIT_DELAY * NSEC_PER_SEC));
if (angle <= 0.66 && angle >= 0.48) {
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
//hit the fire!
HitFire = true;
});
} else {
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
//hit the fire!
HitFire = false;
});
}
Handle.Rotation = new SCNVector4 (1, 0, 0, angle);
}
if (Step == 3) {
//bubbles
MoveEmitter (p);
}
}
public static void DispatchAfter(this DispatchQueue self, TimeSpan delay, Action action)
{
var time = new DispatchTime(DispatchTime.Now, delay.Ticks * 100);
self.DispatchAfter(time, action);
}
// switch to the next introduction step
void NextIntroductionStep ()
{
IntroductionStep++;
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1;
SCNTransaction.SetCompletionBlock (() => {
if (IntroductionStep >= 4) {
//We did finish introduction step 4
//free some memory
if (ShipHandle != null)
ShipHandle.RemoveFromParentNode ();
ShipHandle = null;
ShipPivot = null;
ShipNode = null;
}
if (IntroductionStep == 0) {
//We did finish the whole introduction
IntroNodeGroup.RemoveFromParentNode ();
IntroNodeGroup = null;
Next ();
}
});
if (IntroductionStep == 2) {
var popTime = new DispatchTime (DispatchTime.Now, (long)(1 * NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 1.0f;
ShipNode.Opacity = 1.0f;
ShipNode.RunAction (SCNAction.RepeatActionForever (SCNAction.RotateBy (0, NMath.PI, 0, 1.0)));
SCNTransaction.Commit ();
});
}
if (IntroductionStep == 3) {
//animate ship
ShipNode.RemoveAllActions ();
ShipNode.Rotation = new SCNVector4 (0, 0, 1, (float)(Math.PI / 4) * 0.5f);
//make spotlight relative to the ship
var newPosition = new SCNVector3 (50, 100, 0);
var oldTransform = ShipPivot.ConvertTransformFromNode (SCNMatrix4.Identity, SpotLightNode);
OldSpotTransform = SpotLightNode.Transform;
SpotLightNode.RemoveFromParentNode ();
SpotLightNode.Transform = oldTransform;
ShipPivot.AddChildNode (SpotLightNode);
SpotLightNode.Position = newPosition; // will animate implicitly
SpotLightNode.EulerAngles = new SCNVector3 (-(float)Math.PI / 2, 0, 0);
SpotLightNode.Light.SpotOuterAngle = 120;
var action = SCNAction.Sequence (new [] {
SCNAction.Wait (1),
SCNAction.RepeatActionForever (SCNAction.RotateBy (0, NMath.PI, 0, 2))
});
ShipPivot.RunAction (action);
var animation = CABasicAnimation.FromKeyPath ("position.x");
animation.From = new NSNumber (-50);
animation.To = new NSNumber (50);
animation.TimingFunction = CAMediaTimingFunction.FromName (CAMediaTimingFunction.EaseInEaseOut);
animation.AutoReverses = true;
animation.Duration = 2;
animation.RepeatCount = float.MaxValue;
animation.TimeOffset = animation.Duration * 0.5f;
ShipPivot.ParentNode.AddAnimation (animation, null);
var emitter = ShipNode.FindChildNode ("emitter", true);
var ps = SCNParticleSystem.Create ("reactor.scnp", "assets.scnassets/particles");
ps.ParticleImage = new NSString ("assets.scnassets/textures/tspark.png");
emitter.AddParticleSystem (ps);
ShipHandle.Position = new SCNVector3 (ShipHandle.Position.X, ShipHandle.Position.Y, ShipHandle.Position.Z - TEXT_Z_SPACING - 50);
}
if (IntroductionStep == 4) {
//restore spot light config
SpotLightNode.Light.SpotOuterAngle = 70;
var oldTransform = SpotLightParentNode.ConvertTransformFromNode (SCNMatrix4.Identity, SpotLightNode);
SpotLightNode.RemoveFromParentNode ();
SpotLightNode.Transform = oldTransform;
SpotLightParentNode.AddChildNode (SpotLightNode);
SpotLightNode.Transform = OldSpotTransform;
CameraNode.Position = new SCNVector3 (CameraNode.Position.X, CameraNode.Position.Y, CameraNode.Position.Z - TEXT_Z_SPACING);
}
if (IntroductionStep == 5) {
IntroductionStep = 0;//introduction is over
// jiterring is now useless since the screen will never be static again.
var scnView = (SCNView)this.View;
scnView.JitteringEnabled = false;
AmbientLightNode.Light.Color = SKColorHelper.FromCommonWhiteAlpha (0.3f, 1.0f);
SpotLightNode.Position = new SCNVector3 (0, 0, 0);
SpotLightNode.EulerAngles = new SCNVector3 (-(float)(Math.PI / 4), 0, 0);
CameraNode.Position = new SCNVector3 (0, 0, 120);
CameraNode.EulerAngles = new SCNVector3 (0, 0, 0);
} else {
CameraNode.Position = new SCNVector3 (CameraNode.Position.X, CameraNode.Position.Y, CameraNode.Position.Z - TEXT_Z_SPACING);
}
SCNTransaction.Commit ();
}
bool TryLoadFirstBatch()
{
bool haveNoPost = PostCells.Count == 0 || lastPostSeenOnServer == null;
if(haveNoPost) {
// We dispatch it after two seconds to give the server time to index the new post
// TODO: https://trello.com/c/cWWQXKYY
var dispatchTime = new DispatchTime (DispatchTime.Now, 2 * 1000000000);
DispatchQueue.MainQueue.DispatchAfter (dispatchTime, () => {
// If we get here, we must have no posts. That must mean that last time we tried loading a batch nothing came through so we locked the method. Let's unlock it
haveOldestPost = false;
LoadBatch ();
});
}
return haveNoPost;
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
float delay = 0;
switch (index)
{
case 0:
break;
case 1:
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine();
TextManager.AddBulletAtLevel("Available on OS X 10.8+ and iOS 8.0", 0);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
//show some nice icons
Icon1 = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/Badge_X", "png"), 7, false);
Icon1.Position = new SCNVector3(-20, 3.5f, 5);
GroundNode.AddChildNode(Icon1);
Icon2 = Utils.SCPlaneNode(NSBundle.MainBundle.PathForResource("Images/Badge_iOS", "png"), 7, false);
Icon2.Position = new SCNVector3(20, 3.5f, 5);
GroundNode.AddChildNode(Icon2);
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
Icon1.Position = new SCNVector3(-6, 3.5f, 5);
Icon2.Position = new SCNVector3(6, 3.5f, 5);
SCNTransaction.Commit();
break;
case 2:
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.75f;
Icon1.Position = new SCNVector3(-6, 3.5f, -5);
Icon2.Position = new SCNVector3(6, 3.5f, -5);
Icon1.Opacity = 0.0f;
Icon2.Opacity = 0.0f;
SCNTransaction.Commit();
foreach (var node in Boxes)
{
var popTime = new DispatchTime(DispatchTime.Now, (Int64)(delay * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0.5f;
node.Rotation = new SCNVector4(1, 0, 0, 0);
node.Scale = new SCNVector3(0.02f, 0.02f, 0.02f);
node.Opacity = 1.0f;
SCNTransaction.Commit();
});
delay += 0.05f;
}
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle("Graphic Frameworks");
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
break;
}
}
public void ButtonFinished (ButtonView button, UIView trackingView, UITouch location)
{
double delayInSeconds = 0;
buttonDraggedToPad = false;
miniPadView.Layer.BorderWidth = 0;
CGPoint point = location.LocationInView (miniPadView);
if (miniPadView.PointInside (point, null)) {
updateScoreForDroppedButton (button);
UIView.Animate (.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation (10f * (float)Math.PI / 180), async () => {
await UIView.AnimateAsync (.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation (-10f * (float)Math.PI / 180));
await UIView.AnimateAsync (.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation (10f * (float)Math.PI / 180));
await UIView.AnimateAsync (.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation (-10f * (float)Math.PI / 180));
await UIView.AnimateAsync (.1f, () => trackingView.Transform = CGAffineTransform.MakeRotation (0));
});
}
delayInSeconds = 0.5;
var popTime = new DispatchTime (DispatchTime.Now, (long)(delayInSeconds * NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, async () => {
await UIView.AnimateAsync (0.35f, () => {
CGRect bounds = trackingView.Bounds;
bounds.Size = new CGSize (10, 10);
trackingView.Bounds = bounds;
});
trackingView.RemoveFromSuperview ();
});
}
public void GoToSlide(int slideIndex)
{
int oldIndex = CurrentSlideIndex;
// Load the slide at the specified index
var slide = GetSlide(slideIndex, true);
if (slide == null)
{
return;
}
// Compute the playback direction (did the user select next or previous?)
var direction = slideIndex >= CurrentSlideIndex ? 1 : -1;
// Update badge
ShowsNewInSceneKitBadge(slide.IsNewIn10_10);
// If we are playing backward, we need to use the slide we come from to play the correct transition (backward)
int transitionSlideIndex = direction == 1 ? slideIndex : CurrentSlideIndex;
var transitionSlide = GetSlide(transitionSlideIndex, true);
// Make sure that the next operations are synchronized by using a transaction
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 0;
var rootNode = slide.ContentNode;
var textContainer = slide.TextManager.TextNode;
var offset = new SCNVector3(transitionSlide.TransitionOffsetX, 0.0f, transitionSlide.TransitionOffsetZ);
offset.X *= direction;
offset.Z *= direction;
// Rotate offset based on current yaw
var cosa = Math.Cos(-CameraHandle.Rotation.W);
var sina = Math.Sin(-CameraHandle.Rotation.W);
var tmpX = offset.X * cosa - offset.Z * sina;
offset.Z = (float)(offset.X * sina + offset.Z * cosa);
offset.X = (float)tmpX;
// If we don't move, fade in
if (offset.X == 0 && offset.Y == 0 && offset.Z == 0 && transitionSlide.TransitionRotation == 0)
{
rootNode.Opacity = 0;
}
// Don't animate the first slide
bool shouldAnimate = !(slideIndex == 0 && CurrentSlideIndex == 0);
// Update current slide index
CurrentSlideIndex = slideIndex;
// Go to step 0
GoToSlideStep(0);
// Add the slide to the scene graph
((SCNView)View).Scene.RootNode.AddChildNode(rootNode);
// Fade in, update paramters and notify on completion
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = (shouldAnimate ? slide.TransitionDuration : 0);
SCNTransaction.SetCompletionBlock(() => DidOrderInSlide(slideIndex));
rootNode.Opacity = 1;
CameraHandle.Position = new SCNVector3(CameraHandle.Position.X + offset.X, slide.Altitude, CameraHandle.Position.Z + offset.Z);
CameraHandle.Rotation = new SCNVector4(0, 1, 0, (float)(CameraHandle.Rotation.W + transitionSlide.TransitionRotation * (Math.PI / 180.0f) * direction));
CameraPitch.Rotation = new SCNVector4(1, 0, 0, (float)(slide.Pitch * (Math.PI / 180.0f)));
UpdateLightingForSlide(slideIndex);
Floor.Reflectivity = slide.FloorReflectivity;
Floor.ReflectionFalloffEnd = slide.FloorFalloff;
SCNTransaction.Commit();
// Compute the position of the text (in world space, relative to the camera)
var textWorldTransform = SCNMatrix4.Mult(SCNMatrix4.CreateTranslation(0, -3.3f, -28), CameraNode.WorldTransform);
// Place the rest of the slide
rootNode.Transform = textWorldTransform;
rootNode.Position = new SCNVector3(rootNode.Position.X, 0, rootNode.Position.Z); // clear altitude
rootNode.Rotation = new SCNVector4(0, 1, 0, CameraHandle.Rotation.W); // use same rotation as the camera to simplify the placement of the elements in slides
// Place the text
textContainer.Transform = textContainer.ParentNode.ConvertTransformFromNode(textWorldTransform, null);
// Place the ground node
var localPosition = new SCNVector3(0, 0, 0);
var worldPosition = slide.GroundNode.ParentNode.ConvertPositionToNode(localPosition, null);
worldPosition.Y = 0; // make it touch the ground
localPosition = slide.GroundNode.ParentNode.ConvertPositionFromNode(worldPosition, null);
slide.GroundNode.Position = localPosition;
// Update the floor image if needed
string floorImagePath = null;
NSImage floorImage = null;
if (slide.FloorImageName != null)
{
floorImagePath = NSBundle.MainBundle.PathForResource("SharedTextures/" + slide.FloorImageName, slide.FloorImageExtension);
floorImage = new NSImage(floorImagePath);
}
UpdateFloorImage(floorImage, slide);
SCNTransaction.Commit();
// Preload the next slide after some delay
var delayInSeconds = 1.5;
var popTime = new DispatchTime(DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
PrepareSlide(slideIndex + 1);
});
// Order out previous slide if any
if (oldIndex != CurrentSlideIndex)
{
WillOrderOutSlide(oldIndex);
}
}
public override void PresentStep (int index, PresentationViewController presentationViewController)
{
Step = index;
switch (index) {
case 0:
break;
case 1:
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.SetSubtitle ("SCNPhysicsBody");
TextManager.FlipInText (SlideTextManager.TextType.Subtitle);
TextManager.AddBulletAtLevel ("Dynamic Bodies", 0);
// Add some code
TextManager.AddCode ("#// Make a node dynamic\n"
+ "aNode.#physicsBody# = [SCNPhysicsBody #dynamicBody#];#");
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Code);
break;
case 2:
//add a cube
var worldPos = GroundNode.ConvertPositionToNode (new SCNVector3 (0, 12, 2), null);
var dice = CreateBlock (worldPos, new SCNVector3 (1.5f, 1.5f, 1.5f));
dice.PhysicsBody = null; //wait!
dice.Rotation = new SCNVector4 (0, 0, 1, (float)(Math.PI / 4) * 0.5f);
dice.Scale = new SCNVector3 (0.001f, 0.001f, 0.001f);
((SCNView)presentationViewController.View).Scene.RootNode.AddChildNode (dice);
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 0.75f;
dice.Scale = new SCNVector3 (2, 2, 2);
SCNTransaction.Commit ();
Dices.Add (dice);
break;
case 3:
foreach (var node in Dices)
node.PhysicsBody = SCNPhysicsBody.CreateDynamicBody ();
break;
case 4:
PresentDices (presentationViewController);
break;
case 5:
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.FlipOutText (SlideTextManager.TextType.Code);
TextManager.AddBulletAtLevel ("Manipulate with forces", 0);
// Add some code
TextManager.AddCode ("#// Apply an impulse\n"
+ "[aNode.physicsBody #applyForce:#aVector3 #atPosition:#aVector3 #impulse:#YES];#");
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Code);
break;
case 6:
// remove dices
var center = new SCNVector3 (0, -5, 20);
center = GroundNode.ConvertPositionToNode (center, null);
Explosion (center, Dices);
var popTime = new DispatchTime (DispatchTime.Now, (long)(1 * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
TextManager.FlipOutText (SlideTextManager.TextType.Code);
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel ("Static Bodies", 0);
TextManager.AddCode ("#// Make a node static\n"
+ "aNode.#physicsBody# = [SCNPhysicsBody #staticBody#];#");
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Code);
});
break;
case 7:
PresentWalls (presentationViewController);
break;
case 8:
PresentBalls (presentationViewController);
break;
case 9:
//remove walls
var walls = new List<SCNNode> ();
GroundNode.EnumerateChildNodes (delegate(SCNNode node, out bool stop) {
stop = false;
if (node.Name == "container-wall") {
node.RunAction (SCNAction.Sequence (new SCNAction [] {
SCNAction.MoveBy (new SCNVector3 (0, -2, 0), 0.5),
SCNAction.RemoveFromParentNode ()
}));
walls.Add (node);
}
return stop;
});
break;
case 10:
// remove balls
center = new SCNVector3 (0, -5, 5);
center = GroundNode.ConvertPositionToNode (center, null);
Explosion (center, Balls);
popTime = new DispatchTime (DispatchTime.Now, (long)(0.5 * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
TextManager.FlipOutText (SlideTextManager.TextType.Code);
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.AddBulletAtLevel ("Kinematic Bodies", 0);
TextManager.AddCode ("#// Make a node kinematic\n"
+ "aNode.#physicsBody# = [SCNPhysicsBody #kinematicBody#];#");
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Code);
});
break;
case 11:
var boxNode = SCNNode.Create ();
boxNode.Geometry = SCNBox.Create (10, 0.2f, 10, 0);
boxNode.Position = new SCNVector3 (0, 5, MIDDLE_Z);
boxNode.Geometry.FirstMaterial.Emission.Contents = NSColor.DarkGray;
boxNode.PhysicsBody = SCNPhysicsBody.CreateKinematicBody ();
boxNode.RunAction (SCNAction.RepeatActionForever (SCNAction.RotateBy (0, 0, NMath.PI * 2, 2.0)));
GroundNode.AddChildNode (boxNode);
KinematicItems.Add (boxNode);
var invisibleWall = SCNNode.Create ();
invisibleWall.Geometry = SCNBox.Create (4, 40, 10, 0);
invisibleWall.Position = new SCNVector3 (-7, 0, MIDDLE_Z);
invisibleWall.Geometry.FirstMaterial.Transparency = 0;
invisibleWall.PhysicsBody = SCNPhysicsBody.CreateStaticBody ();
GroundNode.AddChildNode (invisibleWall);
KinematicItems.Add (invisibleWall);
invisibleWall = (SCNNode)invisibleWall.Copy ();
invisibleWall.Position = new SCNVector3 (7, 0, MIDDLE_Z);
GroundNode.AddChildNode (invisibleWall);
KinematicItems.Add (invisibleWall);
invisibleWall = (SCNNode)invisibleWall.Copy ();
invisibleWall.Geometry = SCNBox.Create (10, 40, 4, 0);
invisibleWall.Geometry.FirstMaterial.Transparency = 0;
invisibleWall.Position = new SCNVector3 (0, 0, MIDDLE_Z - 7);
invisibleWall.PhysicsBody = SCNPhysicsBody.CreateStaticBody ();
GroundNode.AddChildNode (invisibleWall);
KinematicItems.Add (invisibleWall);
invisibleWall = (SCNNode)invisibleWall.Copy ();
invisibleWall.Position = new SCNVector3 (0, 0, MIDDLE_Z + 7);
GroundNode.AddChildNode (invisibleWall);
KinematicItems.Add (invisibleWall);
for (int i = 0; i < 100; i++) {
var ball = SCNNode.Create ();
worldPos = boxNode.ConvertPositionToNode (new SCNVector3 (RandFloat (-4, 4), RandFloat (10, 30), RandFloat (-1, 4)), null);
ball.Position = worldPos;
ball.Geometry = SCNSphere.Create (0.5f);
ball.Geometry.FirstMaterial.Diffuse.Contents = NSColor.Cyan;
ball.PhysicsBody = SCNPhysicsBody.CreateDynamicBody ();
((SCNView)presentationViewController.View).Scene.RootNode.AddChildNode (ball);
KinematicItems.Add (ball);
}
break;
case 12:
TextManager.FlipOutText (SlideTextManager.TextType.Code);
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.FlipOutText (SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle ("SCNPhysicsShape");
TextManager.AddCode ("#// Configure the physics shape\n\n"
+ "aNode.physicsBody.#physicsShape# = \n\t[#SCNPhysicsShape# shapeWithGeometry:aGeometry options:options];#");
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Code);
KinematicItems[0].RunAction (SCNAction.Sequence (new SCNAction[] {
SCNAction.FadeOut (0.5),
SCNAction.RemoveFromParentNode ()
}));
for (int i = 1; i < 5; i++)
KinematicItems[i].RemoveFromParentNode ();
KinematicItems = null;
break;
case 13:
//add meshes
PresentMeshes (presentationViewController);
break;
case 14:
// remove meshes
center = new SCNVector3 (0, -5, 20);
center = GroundNode.ConvertPositionToNode (center, null);
Explosion (center, Meshes);
break;
case 15:
// add shapes
PresentPrimitives (presentationViewController);
break;
case 16:
// remove shapes
center = new SCNVector3 (0, -5, 20);
center = GroundNode.ConvertPositionToNode (center, null);
Explosion (center, Shapes);
popTime = new DispatchTime (DispatchTime.Now, (long)(0.5 * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
TextManager.FlipOutText (SlideTextManager.TextType.Code);
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.FlipOutText (SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle ("SCNPhysicsBehavior");
TextManager.AddCode ("#// setup a physics behavior\n\n"
+ "#SCNPhysicsHingeJoint# *joint = [SCNPhysicsHingeJoint\n\n"
+ "jointWithBodyA:#nodeA.physicsBody# axisA:[...] anchorA:[...]\n\n"
+ "bodyB:#nodeB.physicsBody# axisB:[...] anchorB:[...]];\n\n\n"
+ "[scene.#physicsWorld# addBehavior:joint];#");
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Subtitle);
TextManager.FlipInText (SlideTextManager.TextType.Code);
});
break;
case 17:
//add meshes
PresentHinge (presentationViewController);
break;
case 18:
//remove constraints
((SCNView)presentationViewController.View).Scene.PhysicsWorld.RemoveAllBehaviors ();
foreach (var node in Hinges)
node.RunAction (SCNAction.Sequence (new SCNAction[] { SCNAction.Wait (3.0), SCNAction.FadeOut (0.5), SCNAction.RemoveFromParentNode () }));
break;
case 19:
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.FlipOutText (SlideTextManager.TextType.Subtitle);
TextManager.FlipOutText (SlideTextManager.TextType.Code);
TextManager.SetSubtitle ("More...");
TextManager.FlipInText (SlideTextManager.TextType.Subtitle);
TextManager.AddBulletAtLevel ("SCNPhysicsField", 0);
TextManager.AddBulletAtLevel ("SCNPhysicsVehicle", 0);
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Code);
break;
}
}
public void GoToSlide (int slideIndex)
{
int oldIndex = CurrentSlideIndex;
// Load the slide at the specified index
var slide = GetSlide (slideIndex, true);
if (slide == null)
return;
// Compute the playback direction (did the user select next or previous?)
var direction = slideIndex >= CurrentSlideIndex ? 1 : -1;
// Update badge
ShowsNewInSceneKitBadge (slide.IsNewIn10_9);
// If we are playing backward, we need to use the slide we come from to play the correct transition (backward)
int transitionSlideIndex = direction == 1 ? slideIndex : CurrentSlideIndex;
var transitionSlide = GetSlide (transitionSlideIndex, true);
// Make sure that the next operations are synchronized by using a transaction
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 0;
var rootNode = slide.ContentNode;
var textContainer = slide.TextManager.TextNode;
var offset = new SCNVector3 (transitionSlide.TransitionOffsetX, 0.0f, transitionSlide.TransitionOffsetZ);
offset.X *= direction;
offset.Z *= direction;
// Rotate offset based on current yaw
var cosa = Math.Cos (-CameraHandle.Rotation.W);
var sina = Math.Sin (-CameraHandle.Rotation.W);
var tmpX = offset.X * cosa - offset.Z * sina;
offset.Z = (float)(offset.X * sina + offset.Z * cosa);
offset.X = (float)tmpX;
// If we don't move, fade in
if (offset.X == 0 && offset.Y == 0 && offset.Z == 0 && transitionSlide.TransitionRotation == 0)
rootNode.Opacity = 0;
// Don't animate the first slide
bool shouldAnimate = !(slideIndex == 0 && CurrentSlideIndex == 0);
// Update current slide index
CurrentSlideIndex = slideIndex;
// Go to step 0
GoToSlideStep (0);
// Add the slide to the scene graph
((SCNView)View).Scene.RootNode.AddChildNode (rootNode);
// Fade in, update paramters and notify on completion
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = (shouldAnimate ? slide.TransitionDuration : 0);
SCNTransaction.SetCompletionBlock (() => DidOrderInSlide (slideIndex));
rootNode.Opacity = 1;
CameraHandle.Position = new SCNVector3 (CameraHandle.Position.X + offset.X, slide.Altitude, CameraHandle.Position.Z + offset.Z);
CameraHandle.Rotation = new SCNVector4 (0, 1, 0, (float)(CameraHandle.Rotation.W + transitionSlide.TransitionRotation * (Math.PI / 180.0f) * direction));
CameraPitch.Rotation = new SCNVector4 (1, 0, 0, (float)(slide.Pitch * (Math.PI / 180.0f)));
UpdateLightingForSlide (slideIndex);
Floor.Reflectivity = slide.FloorReflectivity;
Floor.ReflectionFalloffEnd = slide.FloorFalloff;
SCNTransaction.Commit ();
// Compute the position of the text (in world space, relative to the camera)
var textWorldTransform = SCNMatrix4.Mult (SCNMatrix4.CreateTranslation (0, -3.3f, -28), CameraNode.WorldTransform);
// Place the rest of the slide
rootNode.Transform = textWorldTransform;
rootNode.Position = new SCNVector3 (rootNode.Position.X, 0, rootNode.Position.Z); // clear altitude
rootNode.Rotation = new SCNVector4 (0, 1, 0, CameraHandle.Rotation.W); // use same rotation as the camera to simplify the placement of the elements in slides
// Place the text
textContainer.Transform = textContainer.ParentNode.ConvertTransformFromNode (textWorldTransform, null);
// Place the ground node
var localPosition = new SCNVector3 (0, 0, 0);
var worldPosition = slide.GroundNode.ParentNode.ConvertPositionToNode (localPosition, null);
worldPosition.Y = 0; // make it touch the ground
localPosition = slide.GroundNode.ParentNode.ConvertPositionFromNode (worldPosition, null);
slide.GroundNode.Position = localPosition;
// Update the floor image if needed
string floorImagePath = null;
NSImage floorImage = null;
if (slide.FloorImageName != null) {
floorImagePath = NSBundle.MainBundle.PathForResource ("SharedTextures/" + slide.FloorImageName, slide.FloorImageExtension);
floorImage = new NSImage (floorImagePath);
}
UpdateFloorImage (floorImage, slide);
SCNTransaction.Commit ();
// Preload the next slide after some delay
var delayInSeconds = 1.5;
var popTime = new DispatchTime (DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
PrepareSlide (slideIndex + 1);
});
// Order out previous slide if any
if (oldIndex != CurrentSlideIndex)
WillOrderOutSlide (oldIndex);
}
public override void PresentStep (int index, PresentationViewController presentationViewController)
{
float delay = 0;
switch (index) {
case 0:
break;
case 1:
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.AddEmptyLine ();
TextManager.AddBulletAtLevel ("Available on OS X 10.8+ and iOS 8.0", 0);
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
//show some nice icons
Icon1 = Utils.SCPlaneNode (NSBundle.MainBundle.PathForResource ("Images/Badge_X", "png"), 7, false);
Icon1.Position = new SCNVector3 (-20, 3.5f, 5);
GroundNode.AddChildNode (Icon1);
Icon2 = Utils.SCPlaneNode (NSBundle.MainBundle.PathForResource ("Images/Badge_iOS", "png"), 7, false);
Icon2.Position = new SCNVector3 (20, 3.5f, 5);
GroundNode.AddChildNode (Icon2);
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 0.75f;
Icon1.Position = new SCNVector3 (-6, 3.5f, 5);
Icon2.Position = new SCNVector3 (6, 3.5f, 5);
SCNTransaction.Commit ();
break;
case 2:
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 0.75f;
Icon1.Position = new SCNVector3 (-6, 3.5f, -5);
Icon2.Position = new SCNVector3 (6, 3.5f, -5);
Icon1.Opacity = 0.0f;
Icon2.Opacity = 0.0f;
SCNTransaction.Commit ();
foreach (var node in Boxes) {
var popTime = new DispatchTime (DispatchTime.Now, (Int64)(delay * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter (popTime, () => {
SCNTransaction.Begin ();
SCNTransaction.AnimationDuration = 0.5f;
node.Rotation = new SCNVector4 (1, 0, 0, 0);
node.Scale = new SCNVector3 (0.02f, 0.02f, 0.02f);
node.Opacity = 1.0f;
SCNTransaction.Commit ();
});
delay += 0.05f;
}
TextManager.FlipOutText (SlideTextManager.TextType.Bullet);
TextManager.FlipOutText (SlideTextManager.TextType.Subtitle);
TextManager.SetSubtitle ("Graphic Frameworks");
TextManager.FlipInText (SlideTextManager.TextType.Bullet);
TextManager.FlipInText (SlideTextManager.TextType.Subtitle);
break;
}
}
public override void PresentStep(int index, PresentationViewController presentationViewController)
{
switch (index)
{
case 0:
// Set the slide's title and subtitle and add some text
TextManager.SetTitle("Constraints");
TextManager.SetSubtitle("SCNConstraint");
TextManager.AddBulletAtLevel("Applied sequentially at render time", 0);
TextManager.AddBulletAtLevel("Only affect presentation values", 0);
TextManager.AddCode("#aNode.#Constraints# = new SCNConstraint[] { aConstraint, anotherConstraint, ... };#");
// Tweak the near clipping plane of the spot light to get a precise shadow map
presentationViewController.SpotLight.Light.SetAttribute(new NSNumber(10), SCNLightAttribute.ShadowNearClippingKey);
break;
case 1:
// Remove previous text
TextManager.FlipOutText(SlideTextManager.TextType.Subtitle);
TextManager.FlipOutText(SlideTextManager.TextType.Bullet);
TextManager.FlipOutText(SlideTextManager.TextType.Code);
// Add new text
TextManager.SetSubtitle("SCNLookAtConstraint");
TextManager.AddBulletAtLevel("Makes a node to look at another node", 0);
TextManager.AddCode("#nodeA.Constraints = new SCNConstraint[] { #SCNLookAtConstraint.Create# (nodeB) };#");
TextManager.FlipInText(SlideTextManager.TextType.Subtitle);
TextManager.FlipInText(SlideTextManager.TextType.Bullet);
TextManager.FlipInText(SlideTextManager.TextType.Code);
break;
case 2:
// Setup the scene
SetupLookAtScene();
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
// Dim the text and move back a little bit
TextManager.TextNode.Opacity = 0.5f;
presentationViewController.CameraHandle.Position = presentationViewController.CameraNode.ConvertPositionToNode(new SCNVector3(0, 0, 5.0f), presentationViewController.CameraHandle.ParentNode);
SCNTransaction.Commit();
break;
case 3:
// Add constraints to the arrows
var container = ContentNode.FindChildNode("arrowContainer", true);
// "Look at" constraint
var constraint = SCNLookAtConstraint.Create(BallNode);
var i = 0;
foreach (var arrow in container.ChildNodes)
{
var delayInSeconds = 0.1 * i++;
var popTime = new DispatchTime(DispatchTime.Now, (long)(delayInSeconds * Utils.NSEC_PER_SEC));
DispatchQueue.MainQueue.DispatchAfter(popTime, () => {
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
// Animate to the result of applying the constraint
((SCNNode)arrow.ChildNodes [0]).Rotation = new SCNVector4(0, 1, 0, (float)(Math.PI / 2));
arrow.Constraints = new SCNConstraint[] { constraint };
SCNTransaction.Commit();
});
}
break;
case 4:
// Create a keyframe animation to move the ball
var animation = CAKeyFrameAnimation.FromKeyPath("position");
animation.KeyTimes = new NSNumber[] {
0.0f,
(1.0f / 8.0f),
(2.0f / 8.0f),
(3.0f / 8.0f),
(4.0f / 8.0f),
(5.0f / 8.0f),
(6.0f / 8.0f),
(7.0f / 8.0f),
1.0f
};
animation.Values = new NSObject[] {
NSValue.FromVector(new SCNVector3(0, 0.0f, 0)),
NSValue.FromVector(new SCNVector3(20.0f, 0.0f, 20.0f)),
NSValue.FromVector(new SCNVector3(40.0f, 0.0f, 0)),
NSValue.FromVector(new SCNVector3(20.0f, 0.0f, -20.0f)),
NSValue.FromVector(new SCNVector3(0, 0.0f, 0)),
NSValue.FromVector(new SCNVector3(-20.0f, 0.0f, 20.0f)),
NSValue.FromVector(new SCNVector3(-40.0f, 0.0f, 0)),
NSValue.FromVector(new SCNVector3(-20.0f, 0.0f, -20.0f)),
NSValue.FromVector(new SCNVector3(0, 0.0f, 0))
};
animation.CalculationMode = CAAnimation.AnimationCubicPaced; // smooth the movement between keyframes
animation.RepeatCount = float.MaxValue;
animation.Duration = 10.0f;
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.Linear);
BallNode.AddAnimation(animation, new NSString("ballNodeAnimation"));
// Rotate the ball to give the illusion of a rolling ball
// We need two animations to do that:
// - one rotation to orient the ball in the right direction
// - one rotation to spin the ball
animation = CAKeyFrameAnimation.FromKeyPath("rotation");
animation.KeyTimes = new NSNumber[] {
0.0f,
(0.7f / 8.0f),
(1.0f / 8.0f),
(2.0f / 8.0f),
(3.0f / 8.0f),
(3.3f / 8.0f),
(4.7f / 8.0f),
(5.0f / 8.0f),
(6.0f / 8.0f),
(7.0f / 8.0f),
(7.3f / 8.0f),
1.0f
};
animation.Values = new NSObject[] {
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI / 4))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI / 4))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI / 2))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI + Math.PI / 2))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI * 2 - Math.PI / 4))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI * 2 - Math.PI / 4))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI * 2 - Math.PI / 2))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI - Math.PI / 2))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI / 4))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI / 4)))
};
animation.RepeatCount = float.MaxValue;
animation.Duration = 10.0f;
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.Linear);
BallNode.AddAnimation(animation, new NSString("ballNodeAnimation2"));
var rotationAnimation = CABasicAnimation.FromKeyPath("rotation");
rotationAnimation.Duration = 1.0f;
rotationAnimation.RepeatCount = float.MaxValue;
rotationAnimation.To = NSValue.FromVector(new SCNVector4(1, 0, 0, (float)(Math.PI * 2)));
BallNode.ChildNodes [1].AddAnimation(rotationAnimation, new NSString("ballNodeRotation"));
break;
case 5:
// Add a constraint to the camera
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
constraint = SCNLookAtConstraint.Create(BallNode);
presentationViewController.CameraNode.Constraints = new SCNConstraint[] { constraint };
SCNTransaction.Commit();
break;
case 6:
// Add a constraint to the light
SCNTransaction.Begin();
SCNTransaction.AnimationDuration = 1;
var cameraTarget = ContentNode.FindChildNode("cameraTarget", true);
constraint = SCNLookAtConstraint.Create(cameraTarget);
presentationViewController.SpotLight.Constraints = new SCNConstraint[] { constraint };
SCNTransaction.Commit();
break;
}
}
public static void DispatchAfter (this DispatchQueue self, TimeSpan delay, Action action)
{
var time = new DispatchTime (DispatchTime.Now, delay.Ticks * 100);
self.DispatchAfter (time, action);
}