I'm trying to add an image in UIImage format to SpritKit's SKSpriteNode. When converting a UIImage into a texture to SKTexture and adding it to SKSpriteNode, the image that takes into account the orientation of the image held by the UIImage is not displayed on the screen. I tried the code below, but the result is identical. Code1: let image: UIImage? let texture: SKTexture = SKTexture(image: image!) ver imageNode = SKSpriteNode(texture: texture) Code2: let image: UIImage? let cgImage = image?.cgImage let ciImage = CIImage(cgImage: cgImage!) let orientedImage = UIImage(cgImage: CIContext(options: nil).createCGImage(ciImage, from: ciImage.extent)!, scale: 0, orientation: image!.imageOrientation) let texture: SKTexture = SKTexture(image: orientedImage) ver imageNode = SKSpriteNode(texture: texture) Code3: let image: UIImage? guard let cgImage = image?.cgImage else { return } let orientedImage = UIImage(cgImage: cgImage, scale: image!.scale, orientation: .up) let texture = SKTexture(image: orientedImage) ver imageNode = SKSpriteNode(texture: texture) Is there a way to ensure that the image orientation is taken into account when displayed?

Hello! Bare with me here, as there is a lot to explain! I am working on implementing a Game Center high score leaderboard into my game. I have looked around for examples of how to properly implement this code, but have come up short on finding much material. Therefore, I have tried implementing it myself based off information I found on apples documentation. Long story short, I am getting success printed when I update my score, but no scores are actually being posted (or at-least no scores are showing up on the Game Center leaderboard when opened). Before I show the code, one thing I have questioned is the fact that this game is still in development. In AppStoreConnect, the status of the leaderboard is "Not Live". Does this affect scores being posted? Onto the code. I have created a GameCenter class which handles getting the leaderboards and posting scores to a specific leaderboard. I will post the code in whole, and will discuss below what is happening. PLEASE VIEW ATTACHED TEXT TO SEE THE GAMECENTER CLASS! GameCenter class - https://developer.apple.com/forums/content/attachment/0dd6dca8-8131-44c8-b928-77b3578bd970 In a different GameScene, once the game is over, I request to post a new high score to Game Center with this line of code: GameCenter.shared.submitScore(id: GameCenterLeaderboards.HighScore.rawValue) Now onto the logic of my code. For the longest time I struggled to figure out how to submit a score. I figured out that in Xcode 12, they deprecated a lot of functions that previously worked for me. Not is seems that we have to load all leaderboards (or the ones we want). That is the purpose behind the leaderboards private variable in the Game Center class. On the start up of the app, I call authenticate player. Once this callback is reached, I call loadLeaderboards which will load the leaderboards for each string id in an enum that I have elsewhere. Each of these leaderboards will be created as a Leaderboard object, and saved in the private leaderboard array. This is so I have access to these leaderboards later when I want to submit a score. Once the game is over, I am calling submitScore with the leaderboard id I want to post to. Right now, I only have a high score, but in the future I may add a parameter to this with the value so it works for other leaderboards as well. Therefore, no value is passed in since I am pulling from local storage which holds the high score. submitScore will get the leaderboard from the private leaderboard array that has the same id as the one passed in. Once I get the correct leaderboard, I submit a score to that leaderboard. Once the callback is hit, I receive the output "Successfully submitted score to leaderboard". This looks promising, except for the fact that no score is actually posted. At startup, I am calling updatePlayerHighScore, which is not complete - but for the purpose of my point, retrieves the high score of the player from the leaderboard and is printing it out to the console. It is printing out (0), meaning that no score was posted. The last thing I have questions about is the context when submitting a score. According to the documentation, this seems to just be metadata that GameCenter does not care about, but rather something the developer can use. Therefore, I think I can cross this off as causing the problem. I believe I implemented this correctly, but for some reason, nothing is posting to the leaderboard. This was ALOT, but I wanted to make sure I got all my thoughts down. Any help on why this is NOT posting would be awesome! Thanks so much! Mark

I am trying to make an application for the Vision Pro where the particles don't move but rather stay still so that there is no lag. For example I am trying to spawn in a 100 particles here: I want the particles to remain static but spawning in many causes the simulator to lag. Also is there maybe a way i can get a particle system to follow a specific shape like the one i have in the image. Currently, I have multiple model entities that take on a particle system component for i in 0..<100 { let newEntity = ModelEntity() var particleSystem = particleSystem(color: newColor) newEntity.components.set(particleSystem) newEntity.position = position newEntity.scale = scale stars.append(newEntity) } } func particleSystem(color: UIColor) -> ParticleEmitterComponent { var particles = ParticleEmitterComponent() particles.emitterShapeSize = .init(repeating: 0.02) // make burst smaller particles.emitterShape = .sphere particles.mainEmitter.birthRate = 1 particles.mainEmitter.lifeSpan = 2 particles.mainEmitter.size = 0.02 particles.burstCount = 50 particles.speed = 0.01 particles.mainEmitter.isLightingEnabled = false particles.mainEmitter.color = .constant(.single(color)) return particles }

An SCNNode is created and used for either an SCNView or an SKView. SceneKit and SpriteKit are using default values. The SceneView has an SCNScene with a rootNode of the SCNNode. The SpriteKitView has a SpriteKitScene with an SK3DNode that has an SCNScene with a rootNode of the SCNNode. There is no other code changing or adding values. Why are the colors for the SCNView less vibrant than the colors for the SKView? Is there a default to change to make them equivalent, or another value to add? I have tried changing the default SCNMaterial but only succeeded in making the image black or dark. Any help is appreciated.

How do I change a UIBezierPath.currentPoint to a SKSpriteNode.position? Here are the appropriate code snippets: func createTrainPath() { let startX = -tracksWidth/2, startY = tracksPosY savedTrainPosition = CGPoint(x: startX, y: startY!) trackRect = CGRect(x: savedTrainPosition.x, y: savedTrainPosition.y, width: tracksWidth, height: tracksHeight) trainPath = UIBezierPath(ovalIn: trackRect) trainPath = trainPath.reversing() // makes myTrain move CW } // createTrainPath Followed by: func startFollowTrainPath() { let theSpeed = Double(5*thisSpeed) var trainAction = SKAction.follow( trainPath.cgPath, asOffset: false, orientToPath: true, speed: theSpeed) trainAction = SKAction.repeatForever(trainAction) createPivotNodeFor(myTrain) myTrain.run(trainAction, withKey: runTrainKey) } // startFollowTrainPath So far, so good (I think?) ... Within other places in my code, I call: return trainPath.currentPoint I need to convert trainPath.currentPoint to myTrain.position ... When I insert the appropriate print statements, I see for example: myTrain.position = (0.0, -295.05999755859375) trainPath.currentPoint = (392.0, -385.0) which obviously disqualifies a simple = , as in: myTrain.position = trainPath.currentPoint Since this = is not correct, what is ? After more investigation, my guess is that .currentPoint is in SKSpriteNode coordinates and .position is in SKScene coordinates.

I'm trying to integrate AR into my app, and I want to be able to present a the UIViewController containing the ar view after pressing a sprite in SKScene. I'm trying to look for a way to present this view controller in touchesBegan however I'm not able to find any reference on this. I'd really appreciate any help.

I am using the following code to create a texture atlas at runtime using a single .png image sprite sheet: func createSpriteTextureAtlas(atlasNumber atlas:Int, forWorld world:Int) { //load the png file let image = UIImage(named: "world\(world)_spritesheet\(atlas)_2048x2048.png") //create the dictonary var imageDictionary = [String: UIImage]() //iterate through all rows and columns and get the subimage var imageIndex = 0 for row in 0...7 { for column in 0...7 { let sourceRect = CGRect(x:column * 256, y:row * 256, width:256, height:256) let sourceImage = image?.cgImage!.cropping(to: sourceRect) let subImage = UIImage(cgImage: sourceImage!) //add the sub image and name to the dictionary imageDictionary["\(imageIndex)"] = subImage imageIndex = imageIndex + 1 } } //create the texture atlas using the dictionary spriteTextureAtlas[atlas] = SKTextureAtlas(dictionary: imageDictionary) } I have a different sprite sheet for every world. I made all the sprite sheets myself using the same tool. This code works 100% of the time for most images. For some images however, the program crashes at: SKTextureAtlas(dictionary: imageDictionary) with the error: Thread 4: EXC_BAD_ACCESS (code=1, address=0x105ff2000). The stack trace says it is crashing inside: #0 0x00000002178e2d34 in -[SKTextureAtlasPacker isFullyOpaque:] (). The crash does not happen every time and only happens for some images. The crash never happens on the simulator. Did I make a mistake inside createSpriteTextureAtlas or is this a SpriteKit bug? P.S. I already know that I can let Xcode make the texture atlas for me by using a folder with a .atlas extension but this is not what i want to do.

I'm trying to animate a shape (e.g. a circle) to follow a custom path, and struggling to find the best way of doing this. I've had a look at the animation options from SwiftUI, UIKit and SpriteKit and all seem very limited in what paths you can provide. Given the complexity of my path, I was hoping there'd be a way of providing a set of coordinates in some input file and have the shape follow that, but maybe that's too ambitious. I was wondering if this were even possible, and assuming not, if there were other options I could consider.

I have implemented auto renewable subscriptions in my app, as well as promo codes. Purchase of subscriptions both monthly and annual; work correctly. What I don't know is what to "listen for" instead of product, when the user uses a promo code to purchase the product. am I looking for a different product code? or product identifier when the offer code is used to subscribe?

Hello everyone I am porting my existing 2d game writing by spritekit to visionOS and I am creating a SpriteView in WindowGroup let currentScene = BattleScene.newGameScene(gameMode: "endless", dataContext: dataController.container.viewContext) SpriteView(scene: currentScene) .ignoresSafeArea(.all) .frame(width: currentScene.frame.width, height: currentScene.frame.height, alignment: .center) .onReceive(NotificationCenter.default.publisher(for: GameoverNotification)) { _ in stopAllAudio() } .onTapGesture { location in let viewPosition = location let touchLocation = CGPoint(x: viewPosition.x, y: viewPosition.y) print("touch on vision window: ", touchLocation.x, touchLocation.y) } .glassBackgroundEffect() //WindowGameView() // .environment(\.managedObjectContext, dataController.container.viewContext) // .environment(model) // .environment(pressedKeys) } .windowStyle(.automatic) .defaultSize(width: 0.5, height: 1.0, depth: 0.0, in: .meters) run it and it turns out the scene can't receive tap event. but it works normal if I run it with my ios target (vision Os designd for ipad) is there anything I missed?

Background: This is a question asking for a good example of SpriteKit from a very new iOS developer who is investigating for starting an iOS 2D game project. As I explored in the official apple development doc, to dev a 2D game SpriteKit is the very framework I am looking for. There have been some clear and succinct words for any API and class documented in the reference spec when I started a project in Xcode. However I haven't been able to finish the project as having no any general idea about what is always needed of a typical game using the framework. Question: As an experienced Java Spring programmer I believe that I am needed a brief example to get started with the SpriteKit framework which provides me an idea of necessary steps for a 2D game.

The error shown in the picture appears when I try to link the StartScene.sks file to the code Attached are pictures of the code Please help me🙏🏻

The error shown in the picture appears when I try to link the StartScene.sks file to the code Attached are pictures of the code Please help me🙏🏻

Hello there 👋 I've noticed a different behavior between iOS 15 and iOS 16 using CIFilter and SpriteKit. Here is a sample code where I want to display a text and apply a blurry effect on the same text in the back of it. Here is the expected behavior (iOS 15): And the broken behavior on iOS 16: It looks like the text is rotated around the x-axis and way too deep. Here is the sample code: import UIKit import SpriteKit class ViewController: UIViewController {     var skView: SKView?     var scene: SKScene?     override func viewDidLoad() {         super.viewDidLoad()         skView = SKView(frame: view.frame)         scene = SKScene(size: skView?.bounds.size ?? .zero)         scene?.backgroundColor = UIColor.red         view.addSubview(skView!)         skView!.presentScene(scene)         let neonNode = SKNode()         let glowNode = SKEffectNode()         glowNode.shouldEnableEffects = true         glowNode.shouldRasterize = true         let blurFilter = CIFilter(name: "CIGaussianBlur")         blurFilter?.setValue(20, forKey: kCIInputRadiusKey)         glowNode.filter = blurFilter         glowNode.blendMode = .alpha         let labelNode = SKLabelNode(text: "MOJO")         labelNode.fontName = "HelveticaNeue-Medium"         labelNode.fontSize = 60         let labelNodeCopy = labelNode.copy() as! SKLabelNode         glowNode.addChild(labelNode)         neonNode.addChild(glowNode)         neonNode.addChild(labelNodeCopy)         neonNode.position = CGPoint(x: 200, y: 200)         scene?.addChild(neonNode) } }

I have an unusual situation. I'm working through some self study training and this particular project is a game similar to fruit ninja where things are flying around the screen and you slice through them by swiping your finger. Anyway the instructor provided a series of "*.caf" files for various sounds while playing the game. For some reason I can't hear any of the sounds on my personal Mac when running the app via Xcode to either an iOS iPad simulator or to a real iPad that I have attached to my mac and setup for developer use in Xcode. Yes sound is working on the mac (hear new email come in etc. and can play videos in the browser). In the iPad simulator I can play youtube videos in mobile safari. While adjusting the sound doesn't seem to raise or lower the volume I can hear the audio in the youtube videos. On the real iPad: yes the sound is on and I can hear audio while playing videos in the browser etc. Lastly, I pushed the code up to GitHub and pulled it to my work Mac. There the sound plays just find in the iOS iPad simulator on that Mac (not allowed to attach my personal iPad to my work mac so can't try the iPad there). So I fell like this confirms the code is correct for playing the sounds in the running app. Oh, and I can select the file in left nav and click the little play button icon to hear it played in Xcode. so, I feel like this is an issue on my personal Mac with Xcode etc., but I'm at a loss as to what the issue is. Can anyone suggest some things to look for on my Mac to get sound working in this app? if you want to see the code it's here and the free training i'm following is at https://www.hackingwithswift.com/100/77. TIA

I need to associate sound with the movement of a sprite. Movement can be as a result of physics, not as a result of an SKAction. When the object is sliding thee should be sliding sound throughout the time when it is sliding, and then a different sound when it bumps into a rock and goes up in the air. When the object is airborne, there is no sound, till it falls again - a falling sound, and then slides down with a sliding sound. The sounds associated with the collision ( rock, ground and so on ) are straightforward and work fine. But am having difficulty associating the sound with movement. The closest result I have is to check the velocity of the sprite's physics body every update cycle and play or stop the sound based on whether the velocity is greater than zero. I tried SKAction.playSoundFileNamed first - the sound kept going even when the object was not moving. I tried adding an SKAudioNode with Play and Stop, with no better result. I finally tried using AVAudioPlayer to play and Pause , which yielded the best results, but the sliding sound still played past the sliding action. What is the best way to do this? My code for playing the sound is as follows: var blockSliding = false for block in gameBlocks { if (block.physicsBody?.velocity.dx ?? 0) + (ball.physicsBody?.velocity.dy ?? 0) > 0.05 { blockSliding = true break } } if slideSound.isPlaying { if !blockSliding { slideSound.pause() } } else { if blockSliding { slideSound.play() } } I have setup slideSound earlier loading the appropriate sound file into an AVAudioPlayer

I have a ProRes 4444 format video with an alpha channel. The circle in the middle of the video is completely opaque, while the rest is fully transparent. Everything looks normal in iMovie, as I can see the background through the surrounding parts. However, when I play it using AVPlayer, the parts that are supposed to be fully transparent appear somewhat opaque, as shown in the image below: I used the official project provided by Apple named 'using_hevc_video_with_alpha', but I only replaced the HEVC with alpha format file with a ProRes 4444 format video file. Below is the main code. import Cocoa import SpriteKit import AVFoundation class ViewController: NSViewController { @IBOutlet var skView: SKView! var videoPlayer: AVPlayer! override func viewDidLoad() { super.viewDidLoad() if let view = self.skView { // Load the SKScene from 'backgroundScene.sks' guard let scene = SKScene(fileNamed: "backgroundScene") else { print ("Could not create a background scene") return } // Set the scale mode to scale to fit the window scene.scaleMode = .aspectFill // Present the scene view.presentScene(scene) // Add the video node guard let alphaMovieURL = Bundle.main.url(forResource: "xuewang", withExtension: "mov") else { print("Failed to overlay alpha movie on the background") return } videoPlayer = AVPlayer(url: alphaMovieURL) let video = SKVideoNode(avPlayer: videoPlayer) video.size = CGSize(width: view.frame.width, height: view.frame.height) print( "Video size is %f x %f", video.size.width, video.size.height) scene.addChild(video) // Play video videoPlayer.play() } } }

All our custom Playground Books using SpriteKit stopped working after upgrading to SwiftPlaygrounds version 4.4 To reproduce the issue, simply create a new book by clicking the top right hand icon and in the book add two lines of code. import SpriteKit let circle = SKShapeNode(circleOfRadius: 100.0) The second line produces an error. I tried with other classes. SKAction seems to work. SKSpriteNode, SKTexture etc have the same issue. Please help. Our students are stuck!

mac mini 2018, MAC OS Ventura 13.5.2, Xcode 15.0 im running my game app in iPhone SE(3rd gen) device(not simulator) with IOS 17 and getting the following error in console: [0x159dec540|RoomCongruence::Processor|Processor] One or more of the chosen IR Presets does not contain room congruence data or the data is corrupted. err shows in console among this other errs messages: getFilePtr: error -1 getting file status [Room Congruence] isIrDataUserDataDictionaryStructurallyValid: IRData User Data invalid - underlying CF object is nil. [0x159dec540|RoomCongruence::Processor|Processor] One or more of the chosen IR Presets does not contain room congruence data or the data is corrupted. the error is showing only(one time) when user have started a game, but not showing if user select to play again. app have been tested on IOS 15 and 16 but not showing this error. appreciate any help, i can provide any other data as necessary. Sorry if im may be missing any info or data necessary this my first time posting here, thanks.