I looked through all posts, WWDC talks and youtube videos, but I still can't figure out how to have multiple SKscenes for different levels and connecting them with swift files in a Game using Spritekit. I want to have a main level board and I managed to open a new scene if you press a SKSpriteNode, but how can I implement game logic to this specific SKScene?
Apologies in advance if it is a silly question, I've been spending ages on it.
You can do it like this:
1) Create .swift file and make a subclass of a SKScene
Go to :
File menu -> New File -> Source -> Swift file
and make subclass of a SKScene
class MenuScene:SKScene {}
2) Create .sks file
Then go to
File menu -> New File -> Resource -> SpriteKit Scene
and make a MenuScene.sks (name it MenuScene without the actual extension).
Repeat this steps for each scene you want to have.
Then to load and start your initial scene. Do this inside your GameViewController.swift:
if let scene = GameScene(fileNamed:"GameScene") {
let skView = self.view as! SKView
//setup your scene here
skView.presentScene(scene)
}
To make a transition to other scene (lets assume that you are in the MenuScene currently) you should do something like this:
if let nextScene = GameScene(fileNamed: "GameScene"){
nextScene.scaleMode = self.scaleMode
let transition = SKTransition.fadeWithDuration(1)
view?.presentScene(nextScene, transition: transition)
}
Related
I am currently creating a 2D game with Swift SpriteKit and GameplayKit.
I have a GameScene.sks file and a GameScene.swift file that is of type SKScene.
Now I wanted to add a Component of type GKComponent. I created my component and added it to one of my SKSpriteNodes in GameScene.sks
However after adding the Component to the SpriteNode in the Scene Editors Inspector the Scene is no longer loaded and the app shows only a grey screen.
Is this a known issue in XCode?
Is there a way of bypassing this issue?
I have not uploaded any example code. The issue is reproducable by any new XCode Project (ios / Game) that supports SpriteKit and GameplayKit.
Just add a class that is derived from GKComponent and add the class to the given helloLabel in the Scene Editor.
This is how the GameScene is loaded:
class GameViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
if let scene = GKScene(fileNamed: "GameScene") {
if let sceneNode = scene.rootNode as! GameScene? {
// This gets only executed when I remove the Component from the SKSpriteNode in the Scene Editor.
}
}
...
I'm have a game, and I'm trying to load a scene other than GameScene. That scene is called MenuScene. I have both a .sks file and .swift file for MenuScene, both called MenuScene. Running the following code in GameViewController, I can at least load MenuScene.sks
if let view = self.view as! SKView? {
if let scene = SKScene(fileNamed: "MenuScene") {
scene.scaleMode = .aspectFill
view.presentScene(scene)
}
view.ignoresSiblingOrder = true
view.showsFPS = false
view.showsNodeCount = false
}
I don't think that MenuScene.swift is being accessed though. I know that didMove(to view: ) isn't getting called, and I thought that when an .sks file loads, the corresponding swift file gets run too, but that appears to not be the case. I have code in MenuScene.swift that I need to be run, but I can't figure out why it's not being run. Help.
The problem here is that, in Xcode, you have to explicitly connect MenuScene.sks to MenuScene.swift
To do this, open MenuScene and go over to the right to the menu. Click on the Custom Class Inspector tab. Then you'll have to enter MenuScene into the Custom Class form.
That will connect the two files, so that when you present the scene, Xcode knows what to open.
I tried to create a new subclass of SKScene "MainScene" like the one apple created the GameScene.
I want to create more scene in addition to my "GameScene" but its not working.
Below is my subclass code.
MainScene :
import SpriteKit
#if !os(iOS)
import AppKit
#endif
class MainScene : SKScene {
override func didMoveToView(view: SKView) {
backgroundColor = UIColor.blueColor()
}
}
MainSceneViewController :
import UIKit
import SpriteKit
class MainViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
if let scene = MainScene(fileNamed:"MainScene") {
// Configure the view.
let skView = self.view as! SKView
//skView.showsFPS = true
//skView.showsNodeCount = true
/* Sprite Kit applies additional optimizations to improve rendering performance */
skView.ignoresSiblingOrder = true
skView.showsPhysics = true
/* Set the scale mode to scale to fit the window */
scene.scaleMode = .AspectFill
skView.presentScene(scene)
}
}
Error : "Could not cast value of type 'UIView' (0x1097f2b20) to 'SKView' (0x108a4cad0)."
When creating a new scene, you need to actually create a new scene file, not just the code behind file.
To create new scene files, go to file, New, File, then in your sections go to iOS, SpriteKit Scene. This will create the sks file you need.
edit:
In the case you are getting the error Could not cast value of type 'UIView' to 'SKView', this is due to the fact that in your story board, your ViewControllers main view does not have a custom class of SKView. In your storyboard file, open up your view controller, click the view for this controller, make sure the right panel is visible, and select the identity inspector tab (It is probably the 3rd from left, looks like a flag or an envelope with a window). Under Custom Class, look for the class text box, and put in SKView
To create more SKScene in addition to GameScene
Go to New File
Select Coca Touch Class
Click on Next
SubClass : Type Manually SkScene
create
import SpriteKit
I'm making a game in XCode using Swift and I want to add a starting screen before the actual game. I don't want just an image that fades out, I want a screen with "play", "select character", and some buttons. I don't know if i should add a new swift file, add a sks file, edit the GameScene.swift file? I'm just starting to develop in SpriteKit and it would be great if you could explain me how to do this properly. Thanks.
Follow this Step by step and it should work:
Open up your Interface Builder (main.storyboard) and add a UIViewController.
Select the new UIViewController, go to Editor > Embed In > UINavigationController
a. To remove the UINavBar for your game scene you'll be able to do this using the property navigationBarHidden in the Game Scene View Controller
Add the UIButtons and/or other controls of your choice to your new View Controller
Left Click (ctrl) and drag the PLAY UIControl to the View Controller displaying your Game Scene.
Connect the other UIControls after adding other View Controllers that are associated with their UIControl counterpart. (see below)
If you've only ever programmed using the SpriteKit Template file, I would recommend looking over this Apple Documentation
~ MORE Details ~
Having successfully added your Start Screen, or your Root View Controller, add one ViewController for each page, or screen, that you'll need the Start Screen to display, by dragging one at a time into the Storyboard file.
Having all the Screens you'll need represented by the View Controllers within your main.storyboard file, the next step is Control Clicking from each UIButton on your "Start Screen" to the ViewController that will display its target screen.
You can just create new sprite kit scene and new swift file,
then put class of your swift file into Custom Class inspector in the
gamescene.sks so it will work just like default GameScene.
then initialise your menu scene in viewDidLoad instead of original GameScene
if let menu = SKScene(fileNamed: "MainMenu") {
menu.scaleMode = .aspectFill
view.presentScene(menu)
}
You can switch to your original scene like this(for example):
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
if let touch = touches.first {
let posistion = touch.location(in: self)
let node = self.atPoint(posistion)
if node == yourNode {
if let originalScene = SKScene(fileNamed: "GameScene") {
originalScene.scaleMode = .aspectFill
view?.presentScene(originalScene)
}
}
}
}
I have a project I've been working on for some time. I am using Sprite-Kit but now want to be able to add a child node from a swift file that is different from the GameScene.swift file.
Some of main code from the view controller that loads the GameScene is shown here:
let skView:SKView = SKView()
let theScene:SKScene = SKScene()
class GameViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
if let theScene = GameScene.unarchiveFromFile("GameScene") as? GameScene {
// Configure the view.
let skView = self.view as! SKView
skView.showsFPS = true
skView.showsNodeCount = true
/* Sprite Kit applies additional optimizations to improve rendering performance */
skView.ignoresSiblingOrder = true
/* Set the scale mode to scale to fit the window */
theScene.scaleMode = .ResizeFill //.AspectFill
var customSceneSize = CGSizeMake(2560, 1600)
theScene.size = customSceneSize
skView.presentScene(theScene)
makeFakeStuff() // prepares some sample data
}
}
Usually I add sprites in the GameScene.swift file using "self.addChild". That won't work from another .swift file, so I have tried:
theScene.addChild(flyingCell)
and I tried:
skView.scene?.addChild(flyingCell)
These execute without error, but nothing shows on the screen. When I try to otherwise use the identical sprite code and put it in the GameScene.swift file and use "self.addChild" it draws it, so the sprite code (not shown) seems fine (position, zPosition, etc). I also made "flyingCell" a global variable to see if that would help ... nope. Any ideas?
I had 2 things wrong in my code.
The first is visible in my question: I should have declared "theScene" using "var" and not "let"
The second problem was in my gamescene, I needed to put "theScene = self"
Apple DTS helped me solve this problem.