Spritekit Размер SKNode в процентах

Question

Я пытаюсь добавить зону касания к сцене в SpriteKit. Он прозрачный, но должен соответствовать определенному размеру в зависимости от размера устройства (iPhone 5, 6, 6+). Я обнаружил, что если я хочу удостовериться, что осязаемая зона остается в том же положении, а размер сенсорной зоны в зависимости от устройства, мне нужно установить положение/размер как часть размера сцены. Когда я использую:

import SpriteKit 
import AVFoundation 

class Page1: SKScene { 

// MARK: Constant Variables (buttons/background) 

let background = SKSpriteNode(imageNamed: "s2.png") 
let menuButton = SKSpriteNode(imageNamed: "menuButton.png") 
let pageForward = SKSpriteNode(imageNamed: "pageForward.png") 
let pageBack = SKSpriteNode(imageNamed: "pageBack.png") 
let soundButton = SKSpriteNode(imageNamed: "soundButton.png") 
let pressSoundButton = SKSpriteNode(imageNamed: "pressedSoundButton.png") 
let pressMenuButton = SKSpriteNode(imageNamed: "pressedMenuButton.png") 
let pressPageForward = SKSpriteNode(imageNamed: "pressedPageForward.png") 
let pressPageBack = SKSpriteNode(imageNamed: "pressedPageBack.png") 

//MARK: Temporary variables 

var pageCount = 1 
var narrationPlayer: AVAudioPlayer! 
var backgroundPlayer: AVAudioPlayer! 
var buttonPress: AVAudioPlayer! 

//MARK: Nodes 

var kittyNode = SKSpriteNode(color: SKColor.redColor(), size: CGSizeMake(100, 100)) 
var kittyLabel = "Kitty" 
var pepperNode = SKSpriteNode(color: SKColor.yellowColor(), size: CGSizeMake(100, 100)) 
var pepperLabel = "Pepper" 
var groundNode = SKSpriteNode(color: SKColor.brownColor(), size: CGSizeMake(100, 100)) 
var groundLabel = "The ground" 
var bushNode = SKSpriteNode(color: SKColor.greenColor(), size: CGSizeMake(100, 100)) 
var bushLabel = "The bushes" 
var racoonNode = SKSpriteNode(color: SKColor.brownColor(), size: CGSizeMake(100, 100)) 
var racoonLabel = "Racoon" 
var forestNode = SKSpriteNode(color: SKColor.whiteColor(), size: CGSizeMake(100, 100)) 
var forestLabel = "The forest" 

// MARK: Initialized classes 

var settings = Settings() 
var page = PauseMenu() 

// MARK: Main code 

override func didMoveToView(view: SKView) { 
    println("In Page1.swift") 

    //narration location 
    let path = NSBundle.mainBundle().URLForResource("BATCAT01", withExtension: "mp3") 
    narrationPlayer = AVAudioPlayer(contentsOfURL: path, error: nil) 

    playBackground() 
    playNarration() 

    //addming background and default buttons 

    background.position = CGPoint(x: size.width/2, y: size.height/2) 
    background.size.height = self.size.height/1 
    background.size.width = self.size.width/1 
    addChild(background) 

    menuButton.position = CGPoint(x: size.width-60, y: 60) 
    menuButton.size.height = menuButton.size.height/5 
    menuButton.size.width = menuButton.size.width/5 
    menuButton.alpha = 0.7 
    menuButton.zPosition = 10 
    addChild(menuButton) 

    soundButton.position = CGPoint(x: 60, y: 60) 
    soundButton.size.height = soundButton.size.height/5 
    soundButton.size.width = soundButton.size.width/5 
    soundButton.alpha = 0.7 
    soundButton.zPosition = 10 
    addChild(soundButton) 

    pageForward.position = CGPoint(x: size.width-60, y: size.height-60) 
    pageForward.size.height = pageForward.size.height/5 
    pageForward.size.width = pageForward.size.width/5 
    pageForward.alpha = 0.7 
    pageForward.zPosition = 10 
    addChild(pageForward) 

    pageBack.position = CGPoint(x: 60, y: size.height-60) 
    pageBack.size.height = pageBack.size.height/5 
    pageBack.size.width = pageBack.size.width/5 
    pageBack.alpha = 0.7 
    pageBack.zPosition = 10 
    //addChild(pageBack) 

    //adding pressed buttons and setting alpha 

    pressSoundButton.position = CGPoint(x: 60, y: 60) 
    pressSoundButton.size.height = pressSoundButton.size.height/5 
    pressSoundButton.size.width = pressSoundButton.size.width/5 
    pressSoundButton.alpha = 0 
    pressSoundButton.zPosition = 11 
    addChild(pressSoundButton) 

    pressMenuButton.position = CGPoint(x: size.width-60, y: 60) 
    pressMenuButton.size.height = pressMenuButton.size.height/5 
    pressMenuButton.size.width = pressMenuButton.size.width/5 
    pressMenuButton.alpha = 0 
    pressMenuButton.zPosition = 11 
    addChild(pressMenuButton) 

    pressPageForward.position = CGPoint(x: size.width-60, y: size.height-60) 
    pressPageForward.size.height = pressPageForward.size.height/5 
    pressPageForward.size.width = pressPageForward.size.width/5 
    pressPageForward.alpha = 0 
    pressPageForward.zPosition = 11 
    addChild(pressPageForward) 

    pressPageBack.position = CGPoint(x: 60, y: size.height-60) 
    pressPageBack.size.height = pressPageBack.size.height/5 
    pressPageBack.size.width = pressPageBack.size.width/5 
    pressPageBack.alpha = 0 
    pressPageBack.zPosition = 11 
    //addChild(pressPageBack) 

    if settings.checkDimension() == 1 { 

     println("Setting up the iPhone touchables") 

     kittyNode.zPosition = 11 
     kittyNode.alpha = 0.5 
     kittyNode.position = CGPoint(x: background.size.width*0.36, y: background.size.height/2) // (155,207) (245,130) 
     addChild(kittyNode) 

     pepperNode.zPosition = 11 
     pepperNode.alpha = 0.5 
     pepperNode.position = CGPoint(x: background.size.width*0.61, y: background.size.height*0.32) // (296.0,163.5) (398.5,43.0) 
     addChild(pepperNode) 

     racoonNode.zPosition = 11 
     racoonNode.alpha = 0.5 
     racoonNode.position = CGPoint(x: background.size.width*0.84, y: background.size.height*0.535) // (437.0,206.0) (518.0,137.0) 
     addChild(racoonNode) 

     groundNode.zPosition = 11 
     groundNode.alpha = 0.5 
     groundNode.position = CGPoint(x: background.size.width/2, y: background.size.height*0.0937) // (1.5,59.5) 
     addChild(groundNode) 

     bushNode.zPosition = 11 
     bushNode.alpha = 0.5 
     bushNode.position = CGPoint(x: background.size.width/2, y: background.size.height*0.32) // (1.0,145.5) (568,59.5) 
     addChild(bushNode) 

     forestNode.zPosition = 11 
     forestNode.alpha = 0.5 
     forestNode.position = CGPoint(x: background.size.width/2, y: background.size.height*0.727) // (0, 320) (1.0,145.5) 
     addChild(forestNode) 


    } else if settings.checkDimension() == 2 { 

     println("Setting up the iPad touchables") 

     //add label nodes 
     kittyNode.zPosition = 11 
     kittyNode.alpha = 0 
     kittyNode.position = CGPoint(x: 360, y: 404.5) 
     addChild(kittyNode) 

     pepperNode.zPosition = 11 
     pepperNode.alpha = 0 
     pepperNode.position = CGPoint(x: 627, y: 240) 
     addChild(pepperNode) 

     groundNode.zPosition = 11 
     groundNode.alpha = 0 
     groundNode.position = CGPoint(x: self.size.width/2, y: 78.5) 
     addChild(groundNode) 

     bushNode.zPosition = 11 
     bushNode.alpha = 0 
     bushNode.position = CGPoint(x: self.size.width/2, y: 261) 
     addChild(bushNode) 

     racoonNode.zPosition = 11 
     racoonNode.alpha = 0 
     racoonNode.position = CGPoint(x: 846, y: 413) 
     addChild(racoonNode) 

     forestNode.zPosition = 11 
     forestNode.alpha = 0 
     forestNode.position = CGPoint(x: self.size.width/2, y: 564) 
     addChild(forestNode) 
    } 
} 

// MARK: Touch handling 

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) { 
    /* Called when a touch begins */ 

    for touch: AnyObject in touches { 
     var location = touch.locationInNode(self) 
     println("\(location)") 

     //checks if someone touched the menu button 
     if menuButton.containsPoint(location) { 
      println("Play story with sound!") 
      menuButton.alpha = 0 
      pressMenuButton.alpha = 0.7 
      settings.setInProgress() 
     } 

     if soundButton.containsPoint(location) { 
      println("Play story with sound!") 
      soundButton.alpha = 0 
      pressSoundButton.alpha = 0.7 
      settings.setInProgress() 
     } 

     //checks if someone touched the forward button 
     if pageForward.containsPoint(location) { 
      println("Next Page!") 
      pageForward.alpha = 0 
      pressPageForward.alpha = 0.7 
      settings.setInProgress() 
     } 

     if pageBack.containsPoint(location) { 
      println("Next Page!") 
      pageBack.alpha = 0 
      pressPageBack.alpha = 0.7 
      settings.setInProgress() 
     } 
    } 
} 

//MARK: functions when touches end 

override func touchesEnded(touches: NSSet, withEvent event: UIEvent) { 
    for touch:AnyObject in touches { 
     var location = touch.locationInNode(self) 
     println("touch ended at \(location)") 

     //user touch error checking 
     soundButton.alpha = 0.7 
     pressSoundButton.alpha = 0 
     menuButton.alpha = 0.7 
     pressMenuButton.alpha = 0 
     pageForward.alpha = 0.7 
     pressPageForward.alpha = 0 
     pageBack.alpha = 0.7 
     pressPageBack.alpha = 0 

     if soundButton.containsPoint(location) { //button code starts 
      println("touch ended in sound button") 
      soundButton.alpha = 0.7 
      pressSoundButton.alpha = 0 
      playNarration() 
     } else if menuButton.containsPoint(location) { 
      println("touch ended in menuButton") 
      menuButton.alpha = 0.7 
      pressMenuButton.alpha = 0 
      goToPauseMenu() 
     } else if pageForward.containsPoint(location) { 
      println("touch ended in sound button") 
      pageForward.alpha = 0.7 
      pressPageForward.alpha = 0 
      nextPage() 
     } else if pageBack.containsPoint(location) { 
      println("touch ended in page back button") 
      pageBack.alpha = 0.7 
      pressPageBack.alpha = 0 
      //lastPage() 
     } else if kittyNode.containsPoint(location) { //label code starts 
      labelActions(kittyLabel, target: location) 
     } else if pepperNode.containsPoint(location) { 
      labelActions(pepperLabel, target: location) 
     } else if groundNode.containsPoint(location) { 
      labelActions(groundLabel, target: location) 
     } else if bushNode.containsPoint(location) { 
      labelActions(bushLabel, target: location) 
     } else if racoonNode.containsPoint(location) { 
      labelActions(racoonLabel, target: location) 
     } else if forestNode.containsPoint(location) { 
      labelActions(forestLabel, target: location) 
     } 
    } 
} 

// MARK: Button actions 

func playNarration() { 
    //narration location 
    let path = NSBundle.mainBundle().URLForResource("BATCAT01", withExtension: "mp3") 
    narrationPlayer = AVAudioPlayer(contentsOfURL: path, error: nil) 
    narrationPlayer.stop() 
    narrationPlayer.prepareToPlay() 
    narrationPlayer.play() 
} 

func playBackground() { 
    //background location 
    let path = NSBundle.mainBundle().URLForResource("BatKitty_Innocence.v1", withExtension: "wav") 
    backgroundPlayer = AVAudioPlayer(contentsOfURL: path, error: nil) 
    backgroundPlayer.stop() 
    backgroundPlayer.prepareToPlay() 
    backgroundPlayer.numberOfLoops = -1 
    backgroundPlayer.play() 
} 

func goToPauseMenu() { 
    var scene = PauseMenu(size: self.size) 
    page.setPage(pageCount) 
    let skView = self.view as SKView! 
    skView.ignoresSiblingOrder = true 
    scene.scaleMode = .ResizeFill 
    scene.size = skView.bounds.size 
    let sceneTransition = SKTransition.revealWithDirection(SKTransitionDirection.Up, duration: 1.3) 
    skView.presentScene(scene, transition: sceneTransition) 

    let effectPath = NSBundle.mainBundle().URLForResource("Soft Pulsing Accent", withExtension: "mp3") 
    buttonPress = AVAudioPlayer(contentsOfURL: effectPath, error: nil) 
    buttonPress.prepareToPlay() 
    buttonPress.play() 
} 

func nextPage() { 
    narrationPlayer.stop() 
    var scene = Page2(size: self.size) 
    let skView = self.view as SKView! 
    skView.ignoresSiblingOrder = true 
    scene.scaleMode = .ResizeFill 
    scene.size = skView.bounds.size 
    let sceneTransition = SKTransition.revealWithDirection(SKTransitionDirection.Left, duration: 1.3) 
    skView.presentScene(scene, transition: sceneTransition) 

    let effectPath = NSBundle.mainBundle().URLForResource("Soft Pulsing Accent", withExtension: "mp3") 
    buttonPress = AVAudioPlayer(contentsOfURL: effectPath, error: nil) 
    buttonPress.prepareToPlay() 
    buttonPress.play() 
} 

func lastPage() { 
    var scene = Page1(size: self.size) 
    let skView = self.view as SKView! 
    skView.ignoresSiblingOrder = true 
    scene.scaleMode = .ResizeFill 
    scene.size = skView.bounds.size 
    let sceneTransition = SKTransition.revealWithDirection(SKTransitionDirection.Right, duration: 1.3) 
    skView.presentScene(scene, transition: sceneTransition) 

    let effectPath = NSBundle.mainBundle().URLForResource("Soft Pulsing Accent", withExtension: "mp3") 
    buttonPress = AVAudioPlayer(contentsOfURL: effectPath, error: nil) 
    buttonPress.prepareToPlay() 
    buttonPress.play() 
} 

//MARK: Label Triggers 

func labelActions(text:String, target:CGPoint) { 

    var dice = arc4random_uniform(4) 
    var tempText = SKLabelNode(text: text) 
    tempText.fontName = "ChalkboardSE-Bold" 
    tempText.fontColor = SKColor(red: 0, green: 1, blue: 1, alpha: 1) 
    var tempTarget = target 

    switch dice { 
    case 0: 
     println("dice rolled a 0") 
     tempText.zRotation = 0.3 
    case 1: 
     tempText.zRotation = -0.3 
     println("dice rolled a 1") 
    case 2: 
     tempText.zRotation = 0.15 
     println("dice rolled a 2") 
    case 3: 
     tempText.zRotation = -0.15 
     println("dice rolled a 3") 
    default: 
     println("default angle") 
    } 
    tempText.position = target 
    var actions = [SKAction.scaleTo(2, duration: 0.5), 
        SKAction.waitForDuration(3), 
        SKAction.scaleTo(0, duration: 0.5), 
        SKAction.removeFromParent()] 
    tempText.runAction(SKAction.sequence(actions)) 

    addChild(tempText) 
} 

}

В идеале я хотел бы, чтобы установить ширину self.size.width * 0,25. Поэтому, если ширина устройства равна 100, тогда ширина узла будет 25. Когда я это сделаю, это не сработает. Я получаю сообщение об ошибке Page1 -> 0 -> Page1! ' не имеет члена с именем 'size

У кого-нибудь есть идеи, что происходит не так и как я могу это исправить?

Answer 1

Вам необходимо получить доступ к frame вашей сцены. Вы можете сделать это, используя self.frame.size. Например:

var width:CGFloat = self.frame.size.width/4 
var height:CGFloat = self.frame.size.height/4