I have somehow lost the ability to receive touch notifications

What did you change 2 days ago, the issue most likely is there.

Have you followed instructions of doc about touchesBegan:

When creating your own subclasses, call super to forward any events that you do not handle yourself.

You should also add a print before line 65 to check function is called.

Code Block 
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesBegan(touches, with: event)
        print("Touches began")
        guard let touch = touches.first else { return }
        print("Touches go on")

Do you really want to

Code Block 
         self.addChild(redSprite!)

at each move ?

When creating your own subclasses, call super to forward any events that you do not handle yourself
I do

Do you really want to
> self.addChild(redSprite!)
at each move ?

This is just a quick reduction in my code to post. Hoping someone could spot something

I guess I'm just going to have to find the last version that worked, and slowly copy over all my mods.

I do not see any answer to my questions or suggestions.

• Do you call super in each function ?

• Did you try to add the print statements ?

• Why do you create a new child each time you move ?

If you don't care about those suggestions, please tell, I'll abstain to provide more.

have a good day.

Do you call super in each function ?

I said I do, if you lookout the post.

Did you try to add the print statements ?

While the breakpoints showed me when I would or would not receive touch statements, I took your advice and added print statements (easier)

Why do you create a new child each time you move ?

I answered that as well..... the code you're looking at is a reduction of my actual code, so that I could post it. So there will be slight errors such as that. If I didn't reduce the code...I would have to post a bunch of separate files. So I reduced it into just GameScene so the error still existed

What I did just try, was to take my lastest code, the one not working, and I copied over a touchesBegan, with print statements, to redSprite.swift. Lo and behold, it is the one receiving the touches signals.

I've checked a million times...only GameScene has:

Code Block 
SKPhysicsContactDelegate
physicsWorld.contactDelegate = self  

I am making sure I call super.init on the redSprite class
and it is being added as a child to GameScene.



What I broke, I have no clue

OK, I did not see "I do" was the answer, looked at it as part of the comment. So, you added a super.touchesBegan in touchesBegan.

Then do you get the prints in touchesBegan ?

You say:

and I copied over a touchesBegan, with print statements, to redSprite.swift.

You did not post this code, exact ?

Sorry, I'm lost because you seem to refer to code you don't show, with versions that have changed… So extremely hard to focus on searching the cause of the problem.

I read again your initial post:

However...if I set GameScene's isUserInteractionEnabled to true, then I do get the touches and the debugger breaks.

So, why don't you set userInteraction to true ?!? It is needed if you want to receive the events.
I must be missing something in your post.

Then do you get the prints in touchesBegan ?

Nope, although if put the touchesBegan in the class I am touching, it gets triggered.
Even though only GameScene has SKPhysicsContactDelegate and physicsWorld.contactDelegate = self

So, why don't you set userInteraction to true ?!? 

I do, what I meant by reduced code was so it could be posted, so I was due to delete something I shouldn't have. But just in the post.

OK, I did not see "I do" was the answer, looked at it as part of the comment. So, you added a super.touchesBegan in touchesBegan.

My turn to say, I didn't catch that. I thought you meant super. in the functions in the class. So now I know to put them in the touches events. Didn't fix it, but thank you for letting me know it needs to be done.

Sorry if my reply seemed snippy. It's just that I got my app to a certain point, while learning Swift, and everything worked. So I stopped at a certain point and decided to clean up the code, add comments, make it clean, etc. etc. And I'm so ****** at myself for not testing after each cleanup that I did, and my backups of the clean code doesn't contain a working version.

So I have no other option but to start the cleanup again. I'm going to start all over, and make sure test every 5 minutes.....argh

So I have no other option but to start the cleanup again. I'm going to start all over, and make sure test every 5 minutes.....argh 

Yes, debugging may be a painful process…

In such a case, what I do is write some code, test it works, close the project, save a copy of the complete project, with a clear indication of the date, as "MyProject - save 2020.11.11 8am", then reopen the working project and continue.
As soon as project crashes, I compare with the last working code. And find out the difference that may cause the crash.

I also insert a lot of prints, with function name, at several places in critical code, to see exactly what happens:

Code Block 
print(#function, "Here the value of this is ", thisValue)

Note: You could try to use git to do this, but that may be overkill.

Ok, have it down to three files, and am not receiving touchesBegan for the red ball. I'd rather it be something stupid I did and be scolded for that

GVC

Code Block 
import SpriteKit
import SwiftUI
class GameViewController: UIViewController {
    public let myView : SKView = {
        let myView = SKView()
        myView.translatesAutoresizingMaskIntoConstraints = false
        return myView
    }()
    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        if myGlobalVars.safeSceneRect == .zero {
            myGlobalVars.sceneRect = view.frame
            myGlobalVars.sceneRect = myView.frame
        }
        
        if #available(iOS 11.0, *) {
            myGlobalVars.topSafeArea    = view.safeAreaInsets.top
            myGlobalVars.bottomSafeArea = view.safeAreaInsets.bottom
        } else {
            myGlobalVars.topSafeArea    = topLayoutGuide.length
            myGlobalVars.bottomSafeArea = bottomLayoutGuide.length
        }
        
        if myGlobalVars.gameScene == nil {
            let scene = GameScene(size: myView.frame.size )
            scene.anchorPoint = CGPoint(x: 0.0, y: 0.0)
            scene.backgroundColor   = .clear
            scene.scaleMode         = .aspectFit
            myGlobalVars.gameScene = scene
            myView.presentScene(scene)
        }
    }
    override func viewWillLayoutSubviews() {
        super.viewWillLayoutSubviews()
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(myView)
        myView.isHidden             = false
        myView.ignoresSiblingOrder  = true
        myView.showsFPS             = true
        myView.showsNodeCount       = true
        myView.showsPhysics         = true
    }
  
    override var shouldAutorotate: Bool {
        return false
    }
    override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
        if UIDevice.current.userInterfaceIdiom == .phone {
            return .portraitUpsideDown
        } else {
            return .all
        }
    }
    override var prefersStatusBarHidden: Bool {
        return false
    }
}

GC

Code Block 
import SpriteKit
import SwiftUI
struct GlobalVars{
    var backGround      : SKSpriteNode?
    var sceneRect       : CGRect
    var safeSceneRect   : CGRect
    var gameScene       : GameScene?
    var topSafeArea     : CGFloat
    var bottomSafeArea  : CGFloat
}
struct ScreenDimensions{
    var widthPix        : CGFloat
    var heightPix       : CGFloat
    var widthPts        : CGFloat
    var heightPts       : CGFloat
}
var myGlobalVars = GlobalVars(backGround: nil, sceneRect: .zero, safeSceneRect: .zero, gameScene: nil, topSafeArea: 0.0, bottomSafeArea: 0.0)
class GameScene: SKScene, SKPhysicsContactDelegate{
    override func sceneDidLoad(){
        super.sceneDidLoad()
            print ("GC sceneDidLoad")
    }
    
    override func didMove(to view: SKView){
        super.didMove(to: view)
        physicsWorld.contactDelegate = self
        self.isHidden = true
        myGlobalVars.backGround = SKSpriteNode(imageNamed: "background")
        myGlobalVars.backGround!.zPosition = -1
        myGlobalVars.safeSceneRect = view.frame
        myGlobalVars.gameScene = self
        self.isHidden = false
        self.isUserInteractionEnabled = false
        self.addChild(myGlobalVars.backGround!)
        let myAll = MyGem()
        self.addChild(myAll)
    }
    
    
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?){
        super.touchesBegan(touches, with: event)
        #if DEBUG
            print ("touches began")
        #endif
    }
 
}

Gem

Code Block 
import Foundation
import SpriteKit
class MyGem : SKSpriteNode{
    init(){
    let skTexture = SKTexture(imageNamed: "gem_red")
        super.init(texture: skTexture, color: .clear, size: CGSize(width: 67, height: 67))
    self.anchorPoint = CGPoint(x: 0.5, y: 0.5)
    self.size = CGSize(width: 67, height: 67)
    self.zPosition = 2
    self.position = CGPoint(x: 0, y: 0 )
    self.position = CGPoint(x: 67/2 + 50,
                             y: 67/2 + 50)
    self.size = CGSize(width: 67, height:  67)
    self.isHidden = false;
    self.isUserInteractionEnabled = true
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

I stil don't understand why you create objects in didMove and not in didLoad (important including for setting delegate):

Code Block 
    override func sceneDidLoad(){
        super.sceneDidLoad()
            print ("GC sceneDidLoad")
        physicsWorld.contactDelegate = self
        self.isHidden = true
        myGlobalVars.backGround = SKSpriteNode(imageNamed: "background")
        myGlobalVars.backGround!.zPosition = -1
        myGlobalVars.safeSceneRect = view.frame
        myGlobalVars.gameScene = self
        self.isHidden = false
        self.isUserInteractionEnabled = false
        self.addChild(myGlobalVars.backGround!)
        let myAll = MyGem()
        self.addChild(myAll)
    }
    
    override func didMove(to view: SKView){
        super.didMove(to: view)
    }

@SergioDCQ
In your didMove(to) of GameScene:

Code Block 
        self.isUserInteractionEnabled = false

Why false? It needs to be true when you want to detect touches.

&OOPer
That's exactly what I asked 1 day ago

I read again your initial post:
However...if I set GameScene's isUserInteractionEnabled to true, then I do get the touches and the debugger breaks.
So, why don't you set userInteraction to true ?!? It is needed if you want to receive the events.
I must be missing something in your post.

I stil don't understand why you create objects in didMove and not in didLoad (important including for setting delegate):

sceneDidLoad comes before didMove, and some of the variables from GVC are not yet filled

In your didMove(to) of GameScene:

Code Block  
        self.isUserInteractionEnabled = false

Why false? It needs to be true when you want to detect touches.

I've gone back on that one many times. All it does is make sure I get touches for the screen itself, not its children

Also for the sample code I uploaded today, I somehow left out the code below (in GVC) and call it right after I create myView

Code Block 
    private func addConstraints(){
         var constraints = [NSLayoutConstraint]()
        //add
         constraints.append(myView.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor))
         constraints.append(myView.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor))
         constraints.append(myView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor))
         constraints.append(myView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor))
        //activate
         NSLayoutConstraint.activate(constraints)
     }