Hello, Just starting to learn Xcode and I can test the first chapter's app on my iPhone if it's conncted via USB-C. The book walks me through the part where I can allow Xcode to connect to the iPhone via WiFi, just checking "Connect via Network."Yet Xcode cannot find my phone unless it's connected via USB. When I go to Devices that checkbox stays checked, unless I unplug the phone it which case that box doesn't even appear.And yes, they are both on the same WiFi, it's the only one I have and it's up and running.Any thoughs?

New to Macs and still learning Swift. My first goal is a game so I actually am looking for TWO recommendations:Is there an advantage to Swift vs. Objective C when programming game apps?Can anyone recommend a decent book for beginners? I'm not a beginner, however my last heavy experience was with Perl, C, and the WindowsSDK. So am behind the times.Thank you

Still new, but slowly building my first game, and getting there. I'd like to be able to add a fading streak or trail as one my SKSpriteNodes returns to it's home base. The only thing I can think of is calculating the distance, breaking it down into x moments, then gradually move the Sprite a little, with some fade options, and then repeat in a loop till it gets back to home base. I know that has to be wrong because it's just so ugly. When I look at the Sprite Kit's Particle File, it has so few options. And I'm not really sure that's what I should be looking at. I have also looked at SKAction's options, and if there's an option there I'm missing it. A good book or website dedicated to SKAction would be nice. But right am just looking for my solution. Thanks as always

Here's the code I have: myGSlot.physicsBody = SKPhysicsBody(rectangleOf: size) myGSlot.physicsBody!.affectedByGravity = true myGSlot.physicsBody!.affectedByGravity = true myGSlot.physicsBody!.isDynamic = true myGSlot.physicsBody!.restitution = 0.2 Is there a way I don't have to constantly unwrap myGSlot.physicsBody?

I would like to create a rectangular box where only the outline has an SKPhysicsBody. Because I would like to have multiple physics bodies in the rectangle. Right now as a solid it's causing a lot of complications.

Below is the code from GameViewController I use to present my GameScene. GameScene comes out respecting the safe areas (iPhone X). However if I create an SKSprite node, the coords for the upper screen draw into the safe area. My impression was that would not happen, nor can I find the top and bottom anchors. p.s. on a side note, I cannot view originalS.frame.width or originalS.frame.height in the debugger, they come out as invalid expressions. yet they don't crash the app.class GameViewController: UIViewController { 		private let myView : UIView = { 				let myView = UIView() myView.translatesAutoresizingMaskIntoConstraints = false myView.backgroundColor = .clear return myView }() private func addConstraints(){ var constraints = [NSLayoutConstraint]() 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)) NSLayoutConstraint.activate(constraints) } let logo = UIImage(named: "startup") override func viewDidLoad() { super.viewDidLoad() view.addSubview(myView) addConstraints() if let view = self.view as! SKView? { myGlobalVars.widthPixels = UIScreen.main.nativeBounds.width myGlobalVars.heightPixels = UIScreen.main.nativeBounds.height myGlobalVars.widthPoints = UIScreen.main.bounds.width myGlobalVars.heightPoints = UIScreen.main.bounds.height originalS = myView originalS.backgroundColor = .clear originalS.translatesAutoresizingMaskIntoConstraints = false originalS.leftAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leftAnchor).isActive = true originalS.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 0).isActive = true originalS.rightAnchor.constraint(equalTo: view.safeAreaLayoutGuide.rightAnchor).isActive = true originalS.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor , constant: -0).isActive = true var scene : GameScene! DispatchQueue.main.async { scene = GameScene(size: CGSize(width: originalS.frame.width, height: originalS.frame.height)) scene.anchorPoint = CGPoint(x: 0.0, y: 0.0) scene.backgroundColor = .black scene.scaleMode = .aspectFit myGlobalVars.sceneRect = scene.frame myGlobalVars.gameScene = scene view.isHidden = false view.presentScene(scene) } myGlobalVars.passGo = true view.ignoresSiblingOrder = true view.showsFPS = true view.showsNodeCount = true view.showsPhysics = false } }

I have two objects that collide even when they are not moving, and are apart from each other. Now I know it's rude not to include code. But before I start reducing my code to post it up here, at let me describe what's happening with a photo. Maybe I'll get lucky and it's something I'm overlooking since I am still learning. Here are the two screenshots. I had to spilt the link because the forum won't let me post it completely. https ://i.ibb.co/QYHcp3L/Untitled.png In the left shot, everything you see, the two balls, and the left and bottom edges are created where you see them. The only thing I have not done is given the edges their SKPhysicsBodies. The edges purposes are just to keep the balls on screen. My intent is to keep the edges just a little off screen, but the same thing happens. I merely moved them in for the screenshots. But in the right shot, I've just given the edges their physics bodies, isPinned is set to true for the edges and the masks are set so that ball and edge collide. Yet for some reason, with nothing moving, the red ball collides with the bottom and left edges till it's pushed just off to the side. This is all done under didMove. And I even tried not giving the edges their physics attributes till I tapped on the blank screen, and boom....everything suddenly collided. If I have missed some sort of setting, would love to know. In the meantime, I'll start condensing all my code into one much smaller file.

May sound silly, but just wanted to make sure that if I import /declare a module in Swift, say: #import GameplayKit And use none of its definitions, will the Xcode compiler not include it in the build?

Update Xcode via the app store is like losing a day. I was hoping I could find the update (dmg) somewhere on Apple to download ver 12.2. Yet the only download I found was for 12.3 beta. So was hoping the updates are located somewhere. Thank you

I just finished a very rough draft of my first app whilst learning Swift. So I decided to remake the app so that my code would be cleaner/more compliant, etc. I don't use storyboards, I launch from GameViewControler, both apps are set for a minimum iOS of 13.5, and both are run on the iPhoneX simulator...as well as my iPhoneX itself. But for some reason in each different app, I am getting different screen sizes! Am going to assume I did something different when I "created" the new project, but am unable to distinguish what that is. Here is my entire GameViewController.swift file and have included a photo of the different screen sizes. I break right after I get both the bounds and native bounds. The two different sizes are: In the 1st project I get wPixels 1125 hPixels 2436 wPoints 375 hPoints 812 and the 2nd wPixels 960 hPixels 1440 wPoints 320 hPoints 480 import UIKit import SpriteKit class GameViewController: UIViewController { 		override func viewDidLoad() { 				super.viewDidLoad() 				if let view = self.view as! SKView? { 						var wPix = UIScreen.main.nativeBounds.width 						var hPix = UIScreen.main.nativeBounds.height 						var wPoi	= UIScreen.main.bounds.width 						var hPoi	= UIScreen.main.bounds.height 						var scene : GameScene! 						DispatchQueue.main.async { [self] in 										 scene = GameScene(size: CGSize(width: wPoi, height: hPoi)) 						scene.anchorPoint = CGPoint(x: 0.0, y: 0.0) 						scene.backgroundColor = .red 						scene.scaleMode = .aspectFit 						view.isHidden = false 						view.presentScene(scene) 						} 						view.ignoresSiblingOrder = true 						view.showsFPS = true 						view.showsNodeCount = true 						view.showsPhysics = true 				} 		} 		override var shouldAutorotate: Bool { 				return false 		} 		override var supportedInterfaceOrientations: UIInterfaceOrientationMask { 				if UIDevice.current.userInterfaceIdiom == .phone { 						return .allButUpsideDown 				} else { 						return .all 				} 		} 		override var prefersStatusBarHidden: Bool { 				return false 		} }

From within my GameViewController's viewDidLoad() function I do two things: 1- I create a sub UIVIew, myView, which is added to the main view, 2- I call my function, addConstraints, which is in the GameViewController's code. When I create GameScene, self.myView.frame.width & self.myView.frame.height contain the correct values, and abide by the safeAreaLayout guides. I want to make my code clearer, so I've moved the addConstraints function to a separate file. But when I run my app that way self.myView.frame.width & self.myView.frame.height are zero. So am curious if I am somehow translating the function incorrectly, or maybe this is something I can't move outside of the main code? The first block is the original code, the 2nd is the function//located with GameViewControl		 private func addConstraints(){ 				var constraints = [NSLayoutConstraint]() 				 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)) NSLayoutConstraint.activate(constraints) } translated into a function//called from GameViewControl 		createConstraints(view: myView) .... //located outside of GameViewControl func createConstraints(view: UIView) { var constraints = [NSLayoutConstraint]() constraints.append(view.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor)) constraints.append(view.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor)) constraints.append(view.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor)) constraints.append(view.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor)) NSLayoutConstraint.activate(constraints) } And here is the full file of GameViewControlimport UIKit import SpriteKit class GameViewController: UIViewController { 		 		private let myView : UIView = { 				let myView = UIView() 				setViewAttributes(view: myView) 				return myView 		}() 		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) } override func viewDidLoad() { super.viewDidLoad() #if DEBUG print ("viewDidLoad") #endif if let view = self.view as! SKView? { getScreenDimensions (screen: &screenDims) view.addSubview(myView) addConstraints() var scene : GameScene! DispatchQueue.main.async { scene = GameScene(size: CGSize(width: self.myView.frame.width, height: self.myView.frame.width)) scene.anchorPoint = CGPoint(x: 0.0, y: 0.0) scene.backgroundColor = .clear scene.scaleMode = .aspectFit view.isHidden = false view.presentScene(scene) } view.ignoresSiblingOrder = true view.showsFPS = true view.showsNodeCount = true view.showsPhysics = true } } override func viewDidLayoutSubviews() { super.viewDidLayoutSubviews() #if DEBUG print ("GVC viewDidLayoutSubviews") #endif myGlobalVars.sceneRect = view.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 } } override var shouldAutorotate: Bool { #if DEBUG print ("shouldAutorotate") #endif return false } override var supportedInterfaceOrientations: UIInterfaceOrientationMask { #if DEBUG print ("supportedInterfaceOrientations") #endif if UIDevice.current.userInterfaceIdiom == .phone { return .allButUpsideDown } else { return .all } } override var prefersStatusBarHidden: Bool { #if DEBUG print ("prefersStatusBarHidden") #endif return false } } The call to function setViewAttributes does pass the view to a function, and I have verified that that function is working.func setViewAttributes(view: UIView) { view.alpha = 0.0 view.frame.size.height = UIScreen.main.nativeBounds.height view.frame.size.width = UIScreen.main.nativeBounds.width view.translatesAutoresizingMaskIntoConstraints = false view.backgroundColor = .clear }

I am currently using this code in my GameViewController file to retrieve the boundaries of the safeArea 	 override func viewWillLayoutSubviews() { 				super.viewWillLayoutSubviews() 				let safeAreaInsets = self.view.safeAreaInsets 		} My concern is that if I were using a UIView (called myView below), I could automatically apply it with this code block and never think of it again. var constraints = [NSLayoutConstraint]() 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)) } Is there an equivalent call when I'm doing that for a UIViewController? Also, from all my reading online many posts have said to use trailing and leading rather than top and bottom. However self.view.safeAreaInsets appears to only have top and bottom.

In GameViewController I do set the safeAreaLayouts. My only problem is that the top and bottom safe areas (iPhone X) are white. Now I can change them via Main.storyboard. However, am working (or learning) my way to create apps without any storyboards. Besides, perhaps I may to vary the background colors of the safeAreas. So was looking for a way to do it with coding. Since I am hear, is there a way to also change the color of the text in the status bar as well? Am pasting the complete code for GVC, just in case that has something to do with my question. import UIKit import SpriteKit class GameViewController: UIViewController { 		 		public let myView : SKView = { 				let myView = SKView() 				myView.translatesAutoresizingMaskIntoConstraints = false 				return myView 		}() 		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) 		 } 		override func viewDidLoad() { 				super.viewDidLoad() 				#if DEBUG 						print ("GVC viewDidLoad") 				#endif 				 //				if let view = self.view as! SKView? 						 						view.addSubview(myView) 						addConstraints() 						var scene : GameScene! //				var scene = GameScene(size: myView.frame.size) //				let scene = GameScene(size: myView.frame.size) 						DispatchQueue.main.async { [self] in scene = GameScene(size: myView.frame.size ) 								 								scene.anchorPoint = CGPoint(x: 0.0, y: 0.0) 								scene.backgroundColor	 = .clear 								scene.scaleMode				 = .aspectFit 								myView.isHidden					 = false 								myView.ignoresSiblingOrder		= true 								myView.showsFPS							 = true 								myView.showsNodeCount				 = true 								myView.showsPhysics					 = true 								myView.presentScene(scene) 						} 				 		} 		override func viewWillLayoutSubviews() { 				super.viewWillLayoutSubviews() 		} 		override func viewDidLayoutSubviews() { 				super.viewDidLayoutSubviews() 				#if DEBUG 						print ("GVC viewDidLayoutSubviews") 				#endif 				getScreenDimensions (screen: &screenDims) 				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 				} 		} 		 		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 		} }

Am currently using Xcode Version 12.1 (12A7403) About a week ago the App Store tried to update Xcode but went nowhere for hours. The update is dated 10/25 So from a linkI was able to downloaded Xcode 12.1.1 dated 10/30 from https://developer.apple.com/download/more/ According to the Apple website, the download is Xcode 12.1.1 dated 10/30 Now sure which to do, or if there's a way I can backup my current Xcode and it's settings just in case something goes wrong. Has anyone experienced this as well?

I am trying to create four walls, that would surround the screen. From GameScene I call let leftWall  = MyEdge(side: Walls.left) The code below works. But then I cannot add it as a child to GameScene, also I would like to give it an SKPhysicsBody. My problem is figuring out the super.init. I've tried super.init(texture: nil, color: .clear, size: CGPath(w: 0, h: 0)) super.init() But I always get Type of expression is ambiguous without more context class MyEdge { 		let yourline = SKShapeNode() 		let pathToDraw = CGMutablePath() 		var color : SKColor 		var startAt : CGPoint 		var endAt : CGPoint 		var colMask : UInt32 		var conMask : UInt32 		var catMask : UInt32 		var name : String 		init(side: Walls){ 				let whichWall = side 				switch whichWall 				{ 						case .left: myGlobalVars.backGround!.size.height+1) 								startAt = CGPoint(x: 5, y: 5) 								endAt = CGPoint(x: 5, y: myGlobalVars.safeSceneRect.size.height-5) 								color = .white 								colMask = bodyMasks.gemMask.rawValue 								conMask = bodyMasks.blankMask.rawValue 								catMask = bodyMasks.edgeMask.rawValue 								name = "left" 				} 				pathToDraw.move(to: startAt) 				pathToDraw.addLine(to: endAt) 				yourline.lineWidth = 2 				yourline.path = pathToDraw 				yourline.strokeColor = color 		} }