如何在Swift中增加和保存int值？

Question

Im trying to keep track of how many times the user loses in my game. So for every loss it goes up by 1. I also want to save it too so the user could see how many total times they lost. Right now the code I have it works the first time and goes to one but if I lose in the game after that it just stays at 1. What am I doing wrong? Thanks!

 class level1: SKScene, SKPhysicsContactDelegate, GKGameCenterControllerDelegate {

      var deathScore = 0


      override func didMoveToView(view: SKView) {

      var deathLabel = SKLabelNode()

      deathLabel = SKLabelNode(fontNamed: "LadyIce-3D")
      deathLabel.text = "100"
      deathLabel.zPosition = 14
      deathLabel.fontSize = 100
      deathLabel.fontColor = SKColor.darkTextColor()
      deathLabel.position = CGPointMake(self.size.width / 1.1, self.size.height / 1.4)
      deathLabel.hidden = true
      self.addChild(deathLabel)

      }



  if firstBody.categoryBitMask == HeroCategory && fourthBody.categoryBitMask == GameOverCategory {


    deathScore++
    deathLabel.hidden = false

        let defaults = NSUserDefaults()

        let saveDeaths = NSUserDefaults().integerForKey("saveNumberOfDeaths")
        if(deathScore > saveDeaths)
        {
            NSUserDefaults().setInteger(saveDeaths, forKey: "saveNumberOfDeaths")
        }
        var showNumberOfDeaths = defaults.integerForKey("saveNumberOfDeaths")




    deathLabel.text = String(showNumberOfDeaths)

     }

     }

Answer 1

You are declaring a new var deathScore everytime, initialized with 0 and incrementing it. It will always be 1.

UserDefaults.standard.set(UserDefaults.standard.integer(forKey: "saveNumberOfDeaths")+1, forKey: "saveNumberOfDeaths")

deathLabel.text = String(UserDefaults.standard.integer(forKey: "saveNumberOfDeaths"))