Save highscore in swift - ios

Question

I gave this code, and I want to add highscore to this project. I wa trying to do this on my own but can't get this to working. Can somebody help me with achieve that ?
I was trying to manipulate with timeInterval but with no luck, this is my learning project from GitHub, I Was trying to ask author to help me but he didn't answer.
fileprivate extension ViewController {
func setupPlayerView() {
playerView.bounds.size = CGSize(width: radius * 2, height: radius * 2)
playerView.layer.cornerRadius = radius
playerView.backgroundColor = #colorLiteral(red: 1, green: 1, blue: 1, alpha: 1)
view.addSubview(playerView)
}
func startEnemyTimer() {
enemyTimer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(generateEnemy(timer:)), userInfo: nil, repeats: true)
}
func stopEnemyTimer() {
guard let enemyTimer = enemyTimer,
enemyTimer.isValid else {
return
}
enemyTimer.invalidate()
}
func startDisplayLink() {
displayLink = CADisplayLink(target: self, selector: #selector(tick(sender:)))
displayLink?.add(to: RunLoop.main, forMode: RunLoopMode.defaultRunLoopMode)
}
func stopDisplayLink() {
displayLink?.isPaused = true
displayLink?.remove(from: RunLoop.main, forMode: RunLoopMode.defaultRunLoopMode)
displayLink = nil
}
func getRandomColor() -> UIColor {
let index = arc4random_uniform(UInt32(colors.count))
return colors[Int(index)]
}
func getEnemyDuration(enemyView: UIView) -> TimeInterval {
let dx = playerView.center.x - enemyView.center.x
let dy = playerView.center.y - enemyView.center.y
return TimeInterval(sqrt(dx * dx + dy * dy) / enemySpeed)
}
func gameOver() {
stopGame()
displayGameOverAlert()
}
func stopGame() {
stopEnemyTimer()
stopDisplayLink()
stopAnimators()
gameState = .gameOver
}
func prepareGame() {
removeEnemies()
centerPlayerView()
popPlayerView()
startLabel.isHidden = false
clockLabel.text = "00:00.000"
gameState = .ready
}
func startGame() {
startEnemyTimer()
startDisplayLink()
startLabel.isHidden = true
beginTimestamp = 0
gameState = .playing
}
func removeEnemies() {
enemyViews.forEach {
$0.removeFromSuperview()
}
enemyViews = []
}
func stopAnimators() {
playerAnimator?.stopAnimation(true)
playerAnimator = nil
enemyAnimators.forEach {
$0.stopAnimation(true)
}
enemyAnimators = []
}
func updateCountUpTimer(timestamp: TimeInterval) {
if beginTimestamp == 0 {
beginTimestamp = timestamp
}
elapsedTime = timestamp - beginTimestamp
clockLabel.text = format(timeInterval: elapsedTime)
}
func highscore(timestamp: TimeInterval) {
if beginTimestamp == 0 {
beginTimestamp = timestamp
}
elapsedTime = timestamp - beginTimestamp
highscoreLabel.text = format(timeInterval: elapsedTime)
}
func format(timeInterval: TimeInterval) -> String {
let interval = Int(timeInterval)
let seconds = interval % 60
let minutes = (interval / 60) % 60
let milliseconds = Int(timeInterval * 1000) % 1000
return String(format: "%02d:%02d.%03d", minutes, seconds, milliseconds)
}
func checkCollision() {
enemyViews.forEach {
guard let playerFrame = playerView.layer.presentation()?.frame,
let enemyFrame = $0.layer.presentation()?.frame,
playerFrame.intersects(enemyFrame) else {
return
}
gameOver()
}
}
func movePlayer(to touchLocation: CGPoint) {
playerAnimator = UIViewPropertyAnimator(duration: playerAnimationDuration,
dampingRatio: 0.5,
animations: { [weak self] in
self?.playerView.center = touchLocation
})
playerAnimator?.startAnimation()
}
func moveEnemies(to touchLocation: CGPoint) {
for (index, enemyView) in enemyViews.enumerated() {
let duration = getEnemyDuration(enemyView: enemyView)
enemyAnimators[index] = UIViewPropertyAnimator(duration: duration,
curve: .linear,
animations: {
enemyView.center = touchLocation
})
enemyAnimators[index].startAnimation()
}
}
func displayGameOverAlert() {
let (title, message) = getGameOverTitleAndMessage()
let alert = UIAlertController(title: "Game Over", message: message, preferredStyle: .alert)
let action = UIAlertAction(title: title, style: .default,
handler: { _ in
self.prepareGame()
}
)
alert.addAction(action)
self.present(alert, animated: true, completion: nil)
}
func getGameOverTitleAndMessage() -> (String, String) {
let elapsedSeconds = Int(elapsedTime) % 60
switch elapsedSeconds {
case 0..<10: return ("I try again", "You need more practice")
case 10..<30: return ("Maybe Another try?", "No bad, just play more")
case 30..<60: return ("Play again", "You are like Ninja")
default:
return ("WOW", "You are simply the best")
}
}
right know I managed to have state of score but I can't to save high score whats wrong with that
func updateBest(){
var defaults=UserDefaults()
var highscore=defaults.integer(forKey: "highscore")
if(Int(elapsedTime)) > highscore
{
defaults.set(Int(self.elapsedTime), forKey: "highscore")
}
var highscoreshow=defaults.integer(forKey: "highscore")
highscoreLabel.text = "\(highscoreshow)"
print("hhScore reported: \(highscoreLabel.text)")
// clockLabel.text = "\(elapsedTime)"
// print("play reported: \(clockLabel.text)")
}

Answer 1

For saving highscore to userdefaults :
let highscore : String = "\(Int(self.elapsedTime))"
UserDefaults.standard.set(highscore, forKey: "highscore")
For retrieving highscore from userdefaults :
highscoreLabel.text = (UserDefaults.standard.value(forKey: "highscore") as? String)
I hope it helps. Cheers. :]