如何在SpriteKit中向游戏添加音乐

Question

I ran into an issue when trying to add sound to my game. I added this below to the view controller and when I build and run, I would get an error. When I ran the code below:

var interstitialAd : GADInterstitial!
var player: AVAudioPlayer!

override func viewDidLoad() {
    super.viewDidLoad()

    let path = Bundle.main.path(forResource: "gameMusic.mp3", ofType:"mp3")!
    let url = URL(fileURLWithPath: path)

    do {
        let sound = try AVAudioPlayer(contentsOf: url)
        player = sound
        sound.play()
    } catch {
        print("file not found")
    }




    if let view = self.view as! SKView? {
        // Load the SKScene from 'GameScene.sks'

I got the following error:

fatal error: unexpectedly found nil while unwrapping an Optional value 2017-05-21 17:35:01.262683 gameTest2[1660:363851] fatal error: unexpectedly found nil while unwrapping an Optional value

Can anyone help?

Answer 1

When you use Bundle.main.path(forResource:,ofType:) the first part should be the name of the resource, the second part should be its type. That means your code should be:

let path = Bundle.main.path(forResource: "gameMusic", ofType:"mp3")!