Mehrzeiliges Etikett im Swift 2 Sprite-Kit?

Question

Ich muss in der Lage sein, ein Multi-Line-Label in Swift 2 Sprite-Kit für ein Spiel zu machen. Der Text muss sich um den Bildschirm herum bewegen, anstatt ihn zu verlassen. Bellow ist, was ich habe, aber ich weiß nicht, was

import Foundation 
import UIKit 
import SpriteKit 

class JDQuotes: SKLabelNode { 

    var number = 0 

    init(num: Int) { 
     super.init() 

     if num == 1 { 

      text = "\"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. laborum.\"" 

     } 
    } 

    required init?(coder aDecoder: NSCoder) { 
     fatalError("init(coder:) has not been implemented") 
    } 
} 

Answer 1

zu tun Es gibt eine Github Lösung über here als SKLabelNodes unterstützen nicht mehrere Linien.

-Code zitiert:

import SpriteKit 

class SKMultilineLabel: SKNode { 
//props 
var labelWidth:Int {didSet {update()}} 
var labelHeight:Int = 0 
var text:String {didSet {update()}} 
var fontName:String {didSet {update()}} 
var fontSize:CGFloat {didSet {update()}} 
var pos:CGPoint {didSet {update()}} 
var fontColor:UIColor {didSet {update()}} 
var leading:Int {didSet {update()}} 
var alignment:SKLabelHorizontalAlignmentMode {didSet {update()}} 
var dontUpdate = false 
var shouldShowBorder:Bool = false {didSet {update()}} 
//display objects 
var rect:SKShapeNode? 
var labels:[SKLabelNode] = [] 

init(text:String, labelWidth:Int, pos:CGPoint, fontName:String="ChalkboardSE-Regular",fontSize:CGFloat=10,fontColor:UIColor=UIColor.blackColor(),leading:Int=10, alignment:SKLabelHorizontalAlignmentMode = .Center, shouldShowBorder:Bool = false) 
{ 
    self.text = text 
    self.labelWidth = labelWidth 
    self.pos = pos 
    self.fontName = fontName 
    self.fontSize = fontSize 
    self.fontColor = fontColor 
    self.leading = leading 
    self.shouldShowBorder = shouldShowBorder 
    self.alignment = alignment 

    super.init() 

    self.update() 
} 

//if you want to change properties without updating the text field, 
// set dontUpdate to false and call the update method manually. 
func update() { 
    if (dontUpdate) {return} 
    if (labels.count>0) { 
     for label in labels { 
      label.removeFromParent() 
     } 
     labels = [] 
    } 
    let separators = NSCharacterSet.whitespaceAndNewlineCharacterSet() 
    let words = text.componentsSeparatedByCharactersInSet(separators) 

    let len = countElements(text) 

    var finalLine = false 
    var wordCount = -1 
    var lineCount = 0 
    while (!finalLine) { 
     lineCount++ 
     var lineLength = CGFloat(0) 
     var lineString = "" 
     var lineStringBeforeAddingWord = "" 

     // creation of the SKLabelNode itself 
     var label = SKLabelNode(fontNamed: fontName) 
     // name each label node so you can animate it if u wish 
     label.name = "line\(lineCount)" 
     label.horizontalAlignmentMode = alignment 
     label.fontSize = fontSize 
     label.fontColor = UIColor.whiteColor() 

     while lineLength < CGFloat(labelWidth) 
     { 
      wordCount++ 
      if wordCount > words.count-1 
      { 
       //label.text = "\(lineString) \(words[wordCount])" 
       finalLine = true 
       break 
      } 
      else 
      { 
       lineStringBeforeAddingWord = lineString 
       lineString = "\(lineString) \(words[wordCount])" 
       label.text = lineString 
       lineLength = label.width 
      } 
     } 
     if lineLength > 0 { 
      wordCount-- 
      if (!finalLine) { 
       lineString = lineStringBeforeAddingWord 
      } 
      label.text = lineString 
      var linePos = pos 
      if (alignment == .Left) { 
       linePos.x -= CGFloat(labelWidth/2) 
      } else if (alignment == .Right) { 
       linePos.x += CGFloat(labelWidth/2) 
      } 
      linePos.y += CGFloat(-leading * lineCount) 
      label.position = CGPointMake(linePos.x , linePos.y) 
      self.addChild(label) 
      labels.append(label) 
      //println("was \(lineLength), now \(label.width)") 
     } 

    } 
    labelHeight = lineCount * leading 
    showBorder() 
} 
func showBorder() { 
    if (!shouldShowBorder) {return} 
    if let rect = self.rect { 
     self.removeChildrenInArray([rect]) 
    } 
    self.rect = SKShapeNode(rectOfSize: CGSize(width: labelWidth, height: labelHeight)) 
    if let rect = self.rect { 
     rect.strokeColor = UIColor.whiteColor() 
     rect.lineWidth = 1 
     rect.position = CGPoint(x: pos.x, y: pos.y - (CGFloat(labelHeight)/2.0)) 
     self.addChild(rect) 
    } 

} 
} 

EDIT: Genauso gut könnte man this version überprüfen, wie es 11 für Swift2

Answer 2

Ab iOS aktualisiert wird, wird dies schließlich möglich mit SKLabelNode:

let lb = SKLabelNode(fontNamed: "Copperplate") 
    lb.text = "Put your long text here..." 
    lb.numberOfLines = 0 
    lb.preferredMaxLayoutWidth = 1000