我试图在SpriteKit中为场景添加触摸区域。它是透明的，但需要根据设备的大小（iPhone 5,6,6 +）匹配一定的大小。我发现如果我想确保可触摸区域保持相同位置并且可触摸区域大小根据设备而缩放，我需要将位置/大小设置为场景大小的一部分。当我使用时：
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)
}
}
理想情况下，我想将宽度设置为self.size.width * 0.25。因此，如果设备宽度为100，那么节点宽度将为25.当我这样做时，它不起作用。我收到错误 Page1 - ＆gt; 0 - ＆gt;第1页＆＃39！;没有名为＆＃39;的成员大小
任何人都有任何想法会出现什么问题以及如何解决这个问题？
答案 0 :(得分：1)
您需要访问场景的frame。您可以使用self.frame.size执行此操作。例如：
var width:CGFloat = self.frame.size.width/4
var height:CGFloat = self.frame.size.height/4