title: updating an SKLabel to show the right integer
body: <p>ok so first off I have an achievement Variable that is defined from a struct like so:</p>
  
  <pre><code>struct Achieve {
  
  var node: SKSpriteNode?
  var aName:String = ""
  var aDes:String = ""
  var aImage: String = "" {
      didSet {
          node?.texture = SKTexture(imageNamed: aImage)
      }
  }
  var aAmount:Int = 0
  var aRequired:Int = 0
  var aStage:Int = 0
  
  }
  
  var Ach1 = Achieve(node: nil, aName: "Player", aDes: "Games Played", aImage: "locked", aAmount: 0, aRequired: 10, aStage: 1)
  </code></pre>
  
  <p>My problem is when I try and change the number of the aAmount property it isn't displayed on the SKLabel that displays the amount it just stays at 0 my sklabel is defined in a function like below:</p>
  
  <pre><code>func generateLabels(location: CGPoint, page:SKSpriteNode, text: String) -&gt; SKLabelNode {
  
          let node = SKLabelNode()
          node.fontColor = UIColor.whiteColor()
          node.fontName = "Helvetica"
          node.position = location
          node.fontSize = 15
          node.text = text
          page.addChild(node)
          return node
  }
  
  func menu() {
  
  _ = generateLabels(CGPointMake(0, -285), page:page1ScrollView, text: "\(Ach1.aAmount) / \(Ach1.aRequired)") 
  
  }
  </code></pre>
  
  <p>It seems to work if I make changes to aAmount when I stop running it and then change it and then run the game again. it also seems to make changes to the aAmount property during gameplay but it doesn't seem to update the label for some reason during the gameplay. Can someone please tell me why it won't update?</p>
  
  <p>Also i'm updating the aAmount property like so:</p>
  
  <pre><code> Ach1.aAmount += 1
   print("\(Ach1.Amount)")
  </code></pre>