About the official tutorials category

Hi. I saw your tutorial on gaming on AR using OpenCV and was wondering whether the same could be accomplished using the ARToolkit (http://artoolkit.org)?

Hi! I don’t know why, but I can’t create new topic, so maybe I’ll write here:
I tried to do game(actually at least to run it on my computer) that I saw in tutorial here: Multiplayer game
But when I try to run it from different computers, client on the second computer(local server is on the first) doesn’t find server:
I do this way:
Start server and set to localhost:8000 or
Start the first client and type localhost:8000, after what it connects to server
In cmd type ipconfig, find IPv4,
Start the second client, and type IPv4:8000, but it isn’t connecting to server

What have I to do, to make it work?

Hi, were you able to run the game on the same computer. As i am trying to run this but it is getting crashed. plz help

Some of the Unity C# free tutorial videos on your site aren’t working correctly. I can hear sound, but the videos are all garbled. Could this be a thing to do with Microsoft Edge?

Do you have some post or other place to offer a topic for new video tutorial? And place for vote to select most interesting?

Hi all, I wasn’t sure where else to post a question about a closed topic. I apologize if I’m posting in the wrong place, but I’m nerding out on this algorithm tutorial:

I am a beginner, obvs, and would like to access ‘depth’ in a tree. I.e. if root is depth 0, when I add children they should be depth 1, the next children would be depth 2, etc.

I know this should be super basic, but I’m having a little trouble wrapping my brain around it.

I tried something like: in the Node class initialize depth: Int, and then in the add(child:) function I could say depth +=. But then I would have to add it manually to each Node, which is unnecessary. Should I instead add a value to the array? Or…? :confused:

(THANKS in advance)

Side note. It seems odd to close forum topics — makes it much harder to continue or organize the discussion. Feature request: keep tutorial discussions open? (all discussions?)

Comments are closed on several tutorials because they are ‘old’.


This tutorial is more than six months old so questions are no longer supported at the moment for it. We will update it as soon as possible. Thank you! :]

This is a pity if the tutorials are still relevant. Sure Swift may be deprecate some of the code, but I’ve found that sometimes there’s a comment that helps clarify what the code should be now, or how to avoid a potentially tricky issue.

If you block comments on a tutorial maybe you scan add a heads up the start of the tut that it’s guaranteed to work “as is” anymore.

1 Like

Is there an updated version of 203, the open-source collaboration tutorial, that shows how to work with source control in Xcode 9? TIA!

hi I was wondering if anyone could update Introduction to the Sprite Kit Scene Editor Fear the Dead, I’ve purchased iOS developer tutorial 2d games when it first came out and I still love the information giving on this website! and could Dino defence be remade as well? thank you for your time and response!

Hi all,
I want learn Swift language and have question, what will the best for start?
This tutorials https://www.raywenderlich.com/ios/learn or this book https://store.raywenderlich.com/products/swift-apprentice?

Thank you for all replies :slight_smile:

I am having trouble with my code in your tutorial for bull’s eye. it doesn’t add the extra bonus points to the total score. I have watched all the videos and he hasn’t fixed it. just want to tell you so you could maybe help me if possible. thanks :slight_smile:

This tutorial would make a seriously good Swift 5 tutorial. It’s from 2017 in obj-c…

iOS 7 Best Practices; A Weather App Case Study: Part 1/2

It’s currently archived

So I am taking the “build your first IOS app using swift” tutorials. I am almost done- to the part of inserting the button images. However, when I insert the yellow image it displays as blue and I am going crazy trying to figure it out. I don’t understand why it is doing that. Can someone please help me?

@corrie Do you still have issues with this?

Hi, I’m having a problem with the tutorial “Introduction to Unity: Getting Started 2/2”. I’m doing everything just like told, but when I introduce the IonCannon script to the Spaceship object, and then play, the Spaceship just disappears from the Game screen when I hit the space bar (so, to be clear: the bullet also gets fired, but the Spaceship disappears and then returns to the original position). This is not what the Spaceship should be doing. Why is that? Thanks.

PS. I could not write this comment on the tutorial page, because “it is closed for comments because it is older than 6 monts”. Maybe not the better idea to close that?

PS2. Thank you for the tutorial, btw, it is a very nice and understandable tutorial. I’m learning a lot, but I’m stuck with that problem… maybe a scripting problem? I really don’t know because my knowledge of scripting is close to zero.

@francisalonso Do you still have issues with this?

I’m new, been doing the Beginning C# tutorials, so far so good, with a few minor inconveniences, I came to the forum in order to ask for help with one of the challenges, specifically the one from video 18 https://www.raywenderlich.com/3247-beginning-c/lessons/18 I already re watched many times and made sure I perfectly typed everything and I’m still not being able to make it work.

I’d love to make an individual post but since I’m new, I can’t create a new topic.

Those links from four years ago didn’t work, which probably wouldn’t help with my current question about frameworks, as I work through the Markup tutorial, on how to run iOS apps on MacOS.

I would start a new topic about it, but my “New Topic” button is grayed out, so this post will have to do.

@rgda91 @javelin Do you still have issues with this?

Hi n00b member here. I am an experienced developer but my swift knowledge has been cobbled together from youtube and stackoverflow so i decided to run through the basic learning paths from scratch to get the basics covered ‘properly’.

I’m currently on iOS and Swift UI for beginners pt4 - programming in swift fundamentals - i have just struggled a little with closures, not because i can’t follow and repeat, but because i am aware of some of the complexity lurking behind this topic.

i’m noticing that the course is starting to make reference to ‘my 2nd app’, assuming i have already done this, when actually it is the module after next - pt6 your 2nd ios and swiftui app.

Am I missing something here? Is the order on https://www.raywenderlich.com/ios/paths/learn correct? i.e. do i just keep blindly following the order set out on this page - is there any discussion / documentation covering this course that i am missing?