sprite-kit

I am building a game with Xcode's spritekit. Its a platform game and right now it functions well with flat ground pieces. I was wondering if it was possible to ignore transparency in the png for collisions. That is to say, If i have a ground piece with a curved floor and transparency filling the troughs, can i make the player walk the curves instead of a square bounding box covering the whole thing? The only example i can find is in the Gamemaker GML language, you can do "precise" collisions such that blank space in the images do not count as part of the sprite. I can supply code if necessary

This first block generates a generic Swift Compile Error (doesn't even point to the line) let screenDivision = size.width / 5; var game1 = SKSpriteNode(color: .redColor(), size: CGSize(width: 2 * screenDivision, height: size.height)); This second block works fine. let screenDivision = size.width / 5; var a = CGSize(width: 2 * screenDivision, height: size.height) var game1 = SKSpriteNode(color: .redColor(), size: a); Why? I'd hate to run into this error again and not remember where I wrote such code. (I also need to pass it a variable, not a constant? Wtf... [if I change var a, to let a, I get

I have a stack of transparent PNGs that I'd like to use in a SKSpriteNode animation with SKTexture s. I'd need to adjust the memory usage of SKTexture s by reducing texture quality down from RGBA8888 to RGBA4444 . How would I initialize SKTexture with RGBA4444 texture format? Edit: IOS Swift Game Development Cookbook: Simple Solutions for Game Development suggests that SKTexture would support PVRTC files as follows: However, I couldn't get a SKSpriteNode to display a texture generated this way. Luca Angeletti I just tried and in Xcode 8 the option Output Texture Atlas described here is no

So I have my "Floor.swift" class below which is basically a bunch of walls. I have objects coming from the top of the screen and once the Floor and SKSpriteNodes collide, I'd like the SKSpriteNode to be removed. Below is my Floor class. import Foundation import SpriteKit class Floor: SKNode { override init() { super.init() let leftWall = SKSpriteNode(color: UIColor.brown, size: CGSize(width: 5, height: 50)) leftWall.position = CGPoint(x: 0, y: 50) leftWall.physicsBody = SKPhysicsBody(rectangleOf: leftWall.size) leftWall.physicsBody!.isDynamic = false self.addChild(leftWall) let rightWall =

I have a SKSpriteNode which is moving along a circular path using an SKAction : // create the path our sprite will travel along let circlePath = CGPathCreateWithEllipseInRect(CGRect(origin: pathCenterPoint, size: CGSize(width: circleDiameter, height: circleDiameter)), nil) // create a followPath action for our sprite let followCirclePath = SKAction.followPath(circlePath, asOffset: false, orientToPath: false, duration: 2 I can add .ReversedAction() to reverse the direction of the sprite, but that will only happen from the starting point. How do I reverse the direction of the sprite, when its at

There are several posts on the internet asking how to correctly combine SpriteKit and Storyboard/Interface builder. In particular nobody is able to move from an SKscene to a desired UIViewController. NONE of the solutions on the net really address this problem! Is it really not possible to do this?? If so, it would be a significant limitation of SpriteKit... You cannot move directly from an SKScene to another UIViewController . However, the SKScene is already contained in a UIViewController . You can use delegation to pass a method call from the scene to its controller. The controller can then

I have an object on scene and my hero should not go through it, but it should be able to go inside of it, like a boat into the bay, surrounded by the other element. I tried all kinds of physicsBody having it have body with rectangle, texture, with polygon from path, but to no avail. I was reading somewhere that it is not possible to have a concave physicsBody, but only convex. I really need it to be able to be concave. Does anyone know how to resolve this? You can create a concave physics body by adding up a bunch of convex physics bodies into one shape. Then you can add them as children to an

I have a SpriteKit game where you must shoot down asteroids before they hit the base. But if you shoot and hit the asteroid and/or the base when the asteroid is hitting the base, the program crashes. Here's my physics contact code. public func didBegin(_ contact: SKPhysicsContact) { //Asteroid is object 1, other item is object 2 var object1 = SKSpriteNode() var object2 = SKSpriteNode() //Test for asteroid/projectile contact, then remove appropriate sprites, change game values and play sounds if contact.bodyA.contactTestBitMask == ColliderType.Asteroid.rawValue && contact.bodyB