Hey everyone,In one of my apps I've been working on where SKShapeNodes fall from the top to the bottom via gravity, if the player recieves a notification in iOS 9 (such as a text message), the game temporarily freezes for around 1 second and then resumes but the nodes have jumped ahead, as if the nodes are still falling but failing to display for that second. Has anyone else come across this? Is there a solution or is it just best to hold out hope for iOS 10? Unfortunately this issue makes the game near unplayable 😟Cheers

I have a label in a SpriteKit appvar speedLabel: SKLabelNode = SKLabelNode()And when I try to assign it a Font like so:speedLabel.fontName = UIFont.preferredFont(forTextStyle: .body).fontNameIn iOS 11.0-12.x, that returns ".SFUIText" and gives the label the proper san-serif system font.In iOS 13.0, it returns ".SFUI-Regular" and shows up as some serifed, maybe Times New Roman font.I remember having issues with SpriteKit Label Nodes and fonts in the past. If you assigned it an invalid font, it would default to this serifed font.Anyone have any ideas how to fix this?

I am developing an app that contains a SpriteKit scene embedded inside a SwiftUI context.I am trying to render a simple SKShapeNode like this:import Foundation import SpriteKit class UIConnection: SKShapeNode { override init() { super.init() self.fillColor = UIColor.clear self.strokeColor = UIColor.blue self.lineWidth = 0.01 } func updatePositions(node1 : CGPoint, node2 : CGPoint) { let path = CGMutablePath() path.move(to: node1) path.addLine(to: CGPoint(x: node1.x, y: node2.y)) path.addLine(to: CGPoint(x: node2.x, y: node2.y)) path.addLine(to: CGPoint(x: node2.x, y: node1.y)) path.addLine(to: node1) self.path = path } required init?(coder aDecoder: NSCoder) { super.init(coder: aDecoder) } }When I am adding that Node inside the standard SpriteKit game project template in XCode (without any SwiftUI things), everything is working fine, I get a non-filled rectangle with a blue outline. The frame.width and frame.height variables are valid pixel dimensions like 750 x 1334.let node = UIConnection() self.addChild(node) node.updatePositions(node1: CGPoint(x: frame.midX-frame.width/4, y: frame.midY-frame.height/4), node2: CGPoint(x: frame.midX+frame.width/4, y: frame.midY+frame.height/4))Now I want to embed the SKScene inside a SwiftUI context using this approach:https://dev.to/sgchipman/using-spritekit-with-swiftui-ibcFirst thing I encounter is the fact that frame.width and frame.height both result in a value of 1.Adding the above node to the embedded SKScene results in an extremely blurred rectangle, so no solid line but some weird cloudy object.

Hi everyone, Running Xcode 12, I'm developing a standalone WatchOS App using Spritekit. I'm using a simple Palette-swap shader using a SKShader with several SKAttributes. The shader seems to work fine, however I get the following message in the console: [Metal Compiler Warning] Warning: Compilation succeeded with:  program_source:3:19: warning: unused variable 's' constexpr sampler s(coord::normalized, I have no idea what this means, there is no variable 's' in my code so I guess this is an issue because GLGS shader code gets compiled to Metal in the background and it goes wrong there? How do I verify this? It seems there is a memory leak associated with this error so I'm prone to solve it. Any help would be appreciated, even if it's just pointing me in a direction. (Like, should I write a new palette shader in Metal?) Thanks in advance! The function that adds the SKShader (an extension to SKSpriteNode): func addMultiColorShader(strokeColor: UIColor, colors:[UIColor]) {         let useColors:[UIColor] = shaderColors(colors)         var attributes:[SKAttribute] = [SKAttribute(name: "a_size", type: .vectorFloat2),                                         SKAttribute(name: "a_scale", type: .vectorFloat2),                                         SKAttribute(name: "a_alpha", type: .float)]                  let colorNames:[String] = ["a_color0","a_color1","a_color2","a_color3"]         for i in 0..<colorNames.count {             attributes += [SKAttribute(name: colorNames[i], type: .vectorFloat4)]         }         let shader = SKShader(fromFile: "SKHMultiColorize", attributes: attributes)         setShaderAttributes(size: self.size, scale: CGSize(width: self.xScale, height: self.yScale), alpha: self.alpha)         setShaderColors(strokeColor: strokeColor, color1: useColors[0], color2: useColors[1], color3: useColors[2])         self.shader = shader     } The actual shader code (OpenGL GS): vec2 nearestNeighbor(vec2 loc, vec2 size) {     vec2 onePixel = vec2(1.0, 1.0) / size;     vec2 coordinate = floor(loc * size) / size; // round     return coordinate + (onePixel * 0.5); } void main() {     vec4 colors[4];     colors[0] = a_color0;     colors[1] = a_color1;     colors[2] = a_color2;     colors[3] = a_color3;              vec4 currentColor = texture2D(u_texture, nearestNeighbor(v_tex_coord, a_size));     int colorIndex = int((currentColor.r * 5.1));      vec4 refColor = colors[colorIndex];     gl_FragColor = refColor * currentColor.a; }

When compiling and testing an old game (Paul Pixel - The Awakening) on the latest Xcode 12.3 for the latest iOS 14.3, the Spritekit particles appeared on top. The SKEmitterNode.zPosition value was ignored. I regularly compile the app with Xcode. So this regression happened with either iOS 14.2 or Xcode 12.2. It doesn't happen when compiling for macOS. The bug is on iOS only. Does anybody have the same problem? I have already reported the bug to Apple, but they're not responding.

Xcode 13 beta 2, iOS 15 beta 2, the following code produces a gray screen (the SKScene GameScene.didMove(to:) never gets called): import SwiftUI import SpriteKit // A simple game scene with falling boxes class GameScene: SKScene { override func didMove(to view: SKView) { physicsBody = SKPhysicsBody(edgeLoopFrom: frame) } override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) { guard let touch = touches.first else { return } let location = touch.location(in: self) let box = SKSpriteNode(color: SKColor.red, size: CGSize(width: 50, height: 50)) box.position = location box.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: 50, height: 50)) addChild(box) } } // A sample SwiftUI creating a GameScene and sizing it at 300x400 points struct ContentView: View { var scene: SKScene { let scene = GameScene() scene.size = CGSize(width: 300, height: 400) scene.scaleMode = .fill return scene } var body: some View { SpriteView(scene: scene) .frame(width: 300, height: 400) .ignoresSafeArea() } } I have no idea how to fix / workaround this issue. Any thoughts?

I was looking to find a way to find out if my SKSpriteNode with an SKPhysicsBody is in motion. I create a box, raise it above the bar, then set the bar and box masks to collide. The bar is pinned, but would love to know when the box stops bouncing.

I would like to utilize the gestures on the watch to drive interaction with my SpriteKit scene. It seems that the SKScene is recreated inside the tap (see uuid output) but the initial scene shows and while a new one is created it does not get rendered. Is it possible to handle taps, swipes, and crown actions to change state within my SpriteKit scene? I want to animate the nodes in the scene not destroy and recreate it on every user interaction. If that is the case then SpriteView itself really doesn't sound all that useful.