skspritenode

I'm trying to rotate an SKSpriteNode node around it's Y-axis. I know there's the zRotation property and that will rotate the node clockwise or counter-clockwise; however, I'd like to rotate the node around it's own Y axis (like a dancing ballerina for instance), and I can't seem to find any functionality to do so. What is the best recommended way of doing this? Typically if I am wanting to rotate something like you seem to be describing, and want it to look good, I will do it via sprite frames depicting different degrees of rotation. You can indeed fake it a little by tweening your xScale

I have been unsuccessful in getting a SKSpriteNode to cast a shadow AND also be made to disappear when going into a shadow from the same light source. I am able to do one of the two but not both. According to the docs: If the sprite is inside a shadow cast by a light and the sprite has a lower z position than the light, the shadow affects how the sprite is lit. All of which I have done. My SKLightNode has a zPosition of 100 and all other nodes have lower zPositions. I have tried any and all combinations of settings for lightingBitMask, shadowCastBitMask and shadowedBitMask but nothing has

(this is for XCode 6 and iOS 8 beta 4) Love the new SceneKit editor. I'm successfully loading the scene from .sks file into a custom SKScene class. However, objects inside it are instantiated as default classes (SKNode, SKSpriteNode, etc), and i'm not sure how to bind them to be instantiated as custom subclasses instead. Currently, I'm getting around that by creating custom classes and linking to sprite nodes as a property, and that works ok I wrote a little helper delegate to deal with this: https://github.com/ice3-software/node-archive-delegate . It uses the NSKeyedUnarchiverDelegate to

Is there a relatively simple way to rotate SKSpriteNode so that it is always facing the direction it is moving? My class Gamescene has a system of objects with their relative physicsbodies that apply impulses on each other when they collide. This makes it relatively difficult to keep track of exactly what direction an object is moving in. Some of the objects are also not regularly shaped, which makes things a bit more chaotic. I have tried using trigonometry (e.g. arctangent), but it only works as intended in very special circumstances. Might there be a way to find out the angle of an

I need help presenting an alert view in the game scene. Im currently struggling to do so as GameScene.Swift isnt a standard ViewController. If it helps I need to do so as I need the user to input a value which is used as a coordinate for the ball Sprite Kit Node in my game. The input is only a standard integer so that isnt an issue. Any other idea of how I can do this which isnt through an alert view is also welcome. override func viewWillLayoutSubviews() { super.viewWillLayoutSubviews() let view = self.view as! SKView if view.scene == nil { view.showsFPS = false view.showsNodeCount = false

This code worked on first XCode 6 Beta, but on latest Beta it's not working and gives such errors Must call a designated initializer of the superclass SKSpriteNode : import SpriteKit class Creature: SKSpriteNode { var isAlive:Bool = false { didSet { self.hidden = !isAlive } } var livingNeighbours:Int = 0 init() { // throws: must call a designated initializer of the superclass SKSpriteNode super.init(imageNamed:"bubble") self.hidden = true } init(texture: SKTexture!) { // throws: must call a designated initializer of the superclass SKSpriteNode super.init(texture: texture) } init(texture: