sprite kit - Swift game not updating highscore inside didMoveToView -

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i'm creating game swift , score works fine. problem highscore. created function called checkscores() check if score greater highscore. highscore remains @ 0.

func checkscores() {     if scoreint > highscoreint {          nsuserdefaults.standarduserdefaults().setinteger(scoreint, forkey: "high")         highscoreint = nsuserdefaults.standarduserdefaults().integerforkey("high")         nsuserdefaults.standarduserdefaults().synchronize()         highscorelbl.text = "highscore : \(highscoreint)"      }

i called inside didmovetoview. created highscore label , integer inside game scene, , set label text inside inithud()

func inithud() {     scorelbl = sklabelnode(fontnamed: "geneva")     scorelbl.position = cgpointmake(self.frame.size.width / 2, self.frame.size.height / 2)     scorelbl.text = "0"     scorelbl.fontsize = 100     scorelbl.alpha = 0.5     addchild(scorelbl)      highscoreint = nsuserdefaults.standarduserdefaults().integerforkey("high")     nsuserdefaults.standarduserdefaults().synchronize()     highscorelbl = sklabelnode(fontnamed: "geneva")     highscorelbl.fontsize = 30     highscorelbl.position = cgpointmake(150, self.frame.size.height - 80)     highscorelbl.text = "highscore : \(highscoreint)"     addchild(highscorelbl) }

when run game highscore remains @ zero. tried put checkscore() inside didbegincontact , works fine. why? because physics updated every frame? possible check inside didmovetoview? thanks!

place code inside update() 

    var highscore = 1      let userdefaults = nsuserdefaults.standarduserdefaults()      highscore = userdefaults.integerforkey("highscore")      userdefaults.setvalue(highscore, forkey: "highscore")      if scorecount > highscore {        userdefaults.setvalue(scorecount, forkey: "highscore")      }      highscorelabel.text = "highscore: \(highscore)"      userdefaults.synchronize()

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