So i have created a couple of different SKScenes in my swift project and I've seen on a couple tutorials that you don't have to launch you gameScene.swift as your first scene, however i can not find a tutorial that explains how
import UIKit
import SpriteKit
class GameViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
if let scene = GameScene(fileNamed:"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 */
scene.scaleMode = .AspectFill
skView.presentScene(scene)
}
}
}
Im trying to change the GameScene SKS to my MainMenu SKS, but i keep getting errors and I'm definitely missing something. Can anyone help me out?
import UIKit
import SpriteKit
class GameViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
if let newScene = MenuScene(fileNamed:"MenuScene") {
// 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 */
newScene.scaleMode = .AspectFill
skView.presentScene(newScene)
}
}
}
So instead of having GameScene as your initial scene, just create MenuScene instance and present it in your viewDidLoad. Note that you have to create coresponding MenuScene.sks file because of this line:
If let newScene = MenuScene(fileNamed:"MenuScene.sks"){
//...}
because you are loading it from a file.
Also to transition to another scene, use following pattern and for example in touchesBegan create new scene, optionally create SKTransition and present the new scene.
Just call that code whenever you want. For example, you can connect it with a button.
#IBAction func playGame(sender: AnyObject) {
if let scene = GameScene(fileNamed:"GameScene") {
...
}
}
this is what I used in a Sprite Kit project. It was I while ago and I dont remember any of the reasoning behind it.
if let scene = DesiredScene.unarchiveFromFile("DesiredScene") as? DesiredScene
perhaps someone else can elucidate whats going on
Related
I have set up my UIImageView using the below setup. I am trying to draw on the view but can not get anything to appear. I am new to Xcode and want my view to automatically change depending on what the screen size is. When I have used the storyboard I could not figure out how to get the view to change with the screen size and/or rotation. As a result I figured it would be easier to make that happen in the ViewController.swift file. When the program wasn't working I tried to see if the view was appearing on the screen. When I made one of the views red, I still could not see anything on the screen. I am very confused. I am open to any feedback. I appreciate you taking time to read this and am looking forward to assistance.
Thanks,
T
import UIKit
import CoreGraphics
class ViewController: UIViewController {
var ResultImageView = UIImageView ( frame: UIScreen.mainScreen().bounds)
var DrawingImageView = UIImageView ( frame: UIScreen.mainScreen().bounds)
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
ResultImageView.userInteractionEnabled = true
ResultImageView.backgroundColor = UIColor.redColor()
DrawingImageView.userInteractionEnabled = true
}
I think the problem is you have to create the imageview in viewDidAppear if you're setting the screen size, because the screen size hasn't been set and orientated where you're setting it. Try the below and hope this issue gets resolved soon :)
var ResultImageView = UIImageView()
var DrawingImageView = UIImageView()
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(true)
ResultImageView = UIImageView (frame: self.view.frame)
DrawingImageView = UIImageView (frame: self.view.frame)
ResultImageView.userInteractionEnabled = true
self.view.addSubview(ResultImageView)
self.view.addSubview(DrawingImageView)
ResultImageView.backgroundColor = UIColor.redColor()
DrawingImageView.userInteractionEnabled = true
}
In GameViewController.swift, I find this line
if let scene = GameScene(fileNamed:"GameScene") {
and I always thought that if I wanted to load something other than GameScene.swift, I could just change "GameScene" to "LandingPage" and everything would work just dandy. However, as I recently figured out, "GameScene" here actually refers to GameScene.sks and not the swift file.
I'm looking to make a game with a number of levels, each written in its own swift file. Where do I go to/ how do I move from, say, level1.swift to level2.swift?
if you are in one scene for example level selection scene, lets say LevelSelectionScene.swift, you can go to another scene via SKView's -presentScene:transition: method.
class LevelSelectionScene: SKScene {
override func didMoveToView(view: SKView) { /* ... */}
func selectLevel(level: Int) {
let fadeTransition = SKTransition.fadeWithDuration(0.3)
if let selectedLevel = createLevelSceneWithLevel(level) {
self.view?.presentScene(selectedLevel, transition: fadeTransition)
}
}
// Not a good idea if you progressively adding new levels,
// it's totally depend on how you gonna organize your levels.
// Since its level input is not arbitrary, the output of this
// rarely nil, if it does, it must be the developer mistake.
func createLevelSceneWithLevel(level: Int) -> SKScene? {
let levelScene: SKScene?
switch level {
case 1: levelScene = Level1()
case 2: levelScene = Level2()
default: levelScene = nil
}
return levelScene
}
}
As somebody above has said the line "fileNamed: "GameScene" "
if let scene = GameScene(fileNamed:"GameScene") {
references the GameScene.sks file, which is the equivalent of storyboard for games.
If you create a new SKScene class and try to load it this way, either from another SKScene or the gameViewController it will not work because it cannot find the corresponding sks file.
I am not 100% sure how to create a new sks file because I dont use it in my games.
If you just want to load a new scene you created you would use this code in your gameViewController
let skView = self.view as! SKView
let scene = NewScene(size: skView.bounds.size)
skView.ignoresSiblingOrder = true
skView.multipleTouchEnabled = true
scene.scaleMode = .AspectFill
skView.presentScene(scene)
If you want to load another scene from a SKScene class its basically the same code
let newScene = NewScene(size: self.size) //size of current scene
let transition = SKTransition.doorsCloseHorizontalWithDuration(0.5) // use transition between 2 SKScenes
let skView = self.view as! SKView
skView.ignoresSiblingOrder = true
skView.multipleTouchEnabled = true
newScene.scaleMode = .AspectFill
skView.presentScene(newScene, transition: transition)
or a slightly cleaner version
let newScene = NewScene(size: self.size)
let transition = SKTransition.doorsCloseHorizontalWithDuration(0.5)
newScene.scaleMode = SKSceneScaleMode.AspectFill
self.view?.presentScene(newScene, transition: transition)
You can specify a custom class name for each scene file in the Custom Class Inspector. That's the right most tab in the Utilities pane.
The custom class (must be a subclass of SKScene) is loaded when the sks file is loaded.
I have a class called IntroLayer I'm trying to load as the inital scene when my game is launched. However after simply changing the GameScene to IntroScene as described in these simple steps, my IntroScene isn't being loaded. I set breakpoints on if let scene to see that it skips over it, and even set breakpoints in the actual IntroScene to verify didMoveToView is not being called. Any ideas?
I changed the let scene from GameScene to IntroScene in the GameViewController like so:
import UIKit
import SpriteKit
class GameViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
if let scene = IntroScene(fileNamed:"IntroScene") {
// 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 */
scene.scaleMode = .AspectFill
skView.presentScene(scene)
}
}
override func shouldAutorotate() -> Bool {
return true
}
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
return .AllButUpsideDown
} else {
return .All
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Release any cached data, images, etc that aren't in use.
}
override func prefersStatusBarHidden() -> Bool {
return true
}
}
Then renamed GameScene.swift to IntroScene.swift and changed the class to this:
import SpriteKit
class IntroScene: SKScene {
override func didMoveToView(view: SKView) {
backgroundColor = UIColor.blackColor()
let fadeIn:SKAction = SKAction.fadeInWithDuration(1.0)
let fadeOut:SKAction = SKAction.fadeOutWithDuration(1.0)
let inspiredText = SKLabelNode(fontNamed: "Dead Kansas")
inspiredText.alpha = 0.0
inspiredText.text = "Inspired By"
inspiredText.position = CGPoint(x:CGRectGetMidX(self.frame), y:CGRectGetMidY(self.frame))
addChild(inspiredText)
inspiredText.runAction(fadeIn)
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
/* Called when a touch begins */
for touch in touches {
// let location = touch.locationInNode(self)
}
}
}
However when I launch the app, it doesn't appear that IntroScene is even called when I set breakpoints, and I'm getting a screen with a gray background.
You need to rename your GameScene.sks to IntroScene.sks
The sks file is an archived file for your scene data, if you open it up, you will notice you can change a lot of things about the scene, and even add nodes and sprites directly to it. When you call if let scene = IntroScene(fileNamed:"IntroScene") { you are unarchiving the sks file to be loaded as a scene, so anytime you want to create a new scene, remember that you will need this file.
I am adding a sprite to the first screen in the basic SpriteKit template. However whenever I go to the play scene and return to the menu scene the image is enlarged. After checking size and scale mode everything seems to be normal. I am unsure why this is happening.
This is the code for the menu:
let playButton = SKSpriteNode(imageNamed: "play")
override func didMoveToView(view: SKView)
{
/* Setup your scene here */
//Place button in exact middle of the screen
self.playButton.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame))
addChild(self.playButton)
self.backgroundColor = UIColor.blueColor()
}
override func touchesBegan(touches: NSSet, withEvent event: UIEvent)
{
/* Called when a touch begins */
for touch: AnyObject in touches
{
let location = touch.locationInNode(self)
if self.nodeAtPoint(location) == self.playButton
{
var scene = PlayJumper()
let sKView = self.view as SKView!
sKView.ignoresSiblingOrder = true
scene.scaleMode = .AspectFill
scene.size = sKView.bounds.size
sKView.presentScene(scene)
}
}
}
Screenshot of scene before moving to next scene:
This is the code to return to the menu from the next scene, and the image that is altered after returning to the screen.
import SpriteKit
class PlayJumper : SKScene
{
override func didMoveToView(view: SKView){
self.backgroundColor = UIColor.orangeColor()
}
override func touchesBegan(touches: NSSet, withEvent event: UIEvent)
{
for touch: AnyObject in touches
{
endGame()
}
}
func endGame()
{
if let scene = GameScene.unarchiveFromFile("GameScene") as? GameScene
{
let sKView = self.view as SKView!
sKView.ignoresSiblingOrder = true
scene.size = sKView.bounds.size
scene.scaleMode = .AspectFill
sKView.presentScene(scene)
}
}
}
Here is the image after moving back to the view, it is slightly larger than the previous image.
I need the image to stay the same no matter how many times the user goes from the game to the menu.
I can only think of two things that can cause this:
In your viewController, you may have changed the scene anchorPoint of the menu and when you go back to the menu you do not set it as the same thing its set to in the viewController.
You may want to use .ResizeFill instead of .AspectFill
Everytime I experienced this problem, it was because of one of these.
I'm working to implement a banner ad in the scene, but it always reports "Thread 1: EXC_BREAKPOINT(code=EXC_ARM_BREAKPOINT, subcode=Oxdefe) and the program stops running.
I referenced Mr. T's answer in another question about iAd("Swift - ADBannerView") but still couldn't make it.
The code looks like this:
import UIKit
import SpriteKit
import iAd
class GameViewController: UIViewController, ADBannerViewDelegate {
#IBOutlet var adBannerView: ADBannerView
override func viewDidLoad() {
super.viewDidLoad()
println("view loaded")
//iAd
self.canDisplayBannerAds = true
self.adBannerView.delegate = self
self.adBannerView.alpha = 0.0
if let scene = 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 */
scene.scaleMode = .AspectFill
skView.presentScene(scene)
}
}
//iAd
func bannerViewWillLoadAd(banner: ADBannerView!) {
println("sort of working1")
}
func bannerViewDidLoadAd(banner: ADBannerView!) {
self.adBannerView.alpha = 1.0
println("sort of working2")
}
func bannerViewActionDidFinish(banner: ADBannerView!) {
println("sort of working3")
}
func bannerViewActionShouldBegin(banner: ADBannerView!, willLeaveApplication willLeave: Bool) -> Bool {
println("sort of working4")
return true
}
func bannerView(banner: ADBannerView!, didFailToReceiveAdWithError error: NSError!) {
}
}
And I created an ADBannerView in the Main.storyboard and linked it with the #IBOutlet adBannerView.
Anyone helps me figure out?
This is how I did it, possibly not all of it is necessary.
I did not use the banner in the Storyboard, so the IBOutlet is not necessary.
Also, if you manually create a banner, you do not need to set self.canDisplayBannerAds
This function (ported from ObjC) is how I display the ads.
func loadAds(){
adBannerView = ADBannerView(frame: CGRect.zeroRect)
adBannerView.center = CGPoint(x: adBannerView.center.x, y: view.bounds.size.height - adBannerView.frame.size.height / 2)
adBannerView.delegate = self
adBannerView.hidden = true
view.addSubview(adBannerView)
}
This is called in viewDidLoad. Then, in the didLoadAd delegate method, I set adBannerView.hidden = false and in didFailToReceiveAdWithError, adBannerView.hidden = true
I think hidden is better than alpha in this situation, as it feels more natural. I believe (but am not sure) that when hidden, the view is not drawn at all by the GPU, while with an alpha of 0, it is still drawn, but made invisible (correct me if I am wrong).
This is my setup, and it worked for me, so hopefully it will work in your case too!