Gamecenter排行榜完成按钮与Swift使用SpriteKit不工作

Question

我目前正在使用Swift开发我的第一款iOS游戏。不幸的是，到目前为止，我在实现Gamecenter方面遇到的问题比其他任何问题都多。

在弄清楚如何弹出排行榜并保存高分后，我遇到了下一个问题：

如何使"完成"按钮工作？如果我按下它，什么也不会发生。

首先我的代码：

GameViewController.swift:

import GameKit        
    ....
override func viewWillLayoutSubviews() {
    let skView = self.view as SKView
    skView.ignoresSiblingOrder = true
    let scene = GameScene.sceneWithSize(skView.bounds.size)
    scene.scaleMode = .AspectFill
    skView.presentScene(scene)
    authenticateLocalPlayer()
}
func authenticateLocalPlayer(){
    var localPlayer = GKLocalPlayer()
    println(localPlayer)
    localPlayer.authenticateHandler = {(viewController, error) -> Void in
        if ((viewController) != nil) {
            self.presentViewController(viewController, animated: true, completion: nil)
        }else{
            println((GKLocalPlayer.localPlayer().authenticated))
        }
    }
}

GameScene.swift:

    import GameKit        
    ....
    override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    var touch:UITouch = touches.anyObject() as UITouch
    var location:CGPoint = touch.locationInNode(self)
    if gameCenterRect.contains(location) {
            var vc = self.view?.window?.rootViewController
            var gc = GKGameCenterViewController()
            vc?.presentViewController(gc, animated: true, completion: nil)
        }
 func saveHighscore(score:Int){
    NSUserDefaults.standardUserDefaults().setObject(score, forKey: "kHighscore")
    if GKLocalPlayer.localPlayer().authenticated {
        var scoreReporter = GKScore(leaderboardIdentifier: "LEADERBOARD_ID")
        scoreReporter.value = Int64(self.highscore)
        var scoreArray: [GKScore] = [scoreReporter]
        //println("report score (scoreReporter)")
        GKScore.reportScores(scoreArray, {(error : NSError!) -> Void in
            if error != nil {
                println("error")
                //NSLog(error.localizedDescription)
            }
        })
    }
}

我必须在哪里向代码中添加一些内容才能返回？

Answer 1

您必须在游戏场景中添加以下行：

class GameScene: SKScene, SKPhysicsContactDelegate,UIGestureRecognizerDelegate,     GKGameCenterControllerDelegate{
func gameCenterViewControllerDidFinish(gameCenterViewController: GKGameCenterViewController!)
{
    gameCenterViewController.dismissViewControllerAnimated(true, completion: nil)
}

并修复这个

 if gameCenterRect.contains(location) {
   var vc = self.view?.window?.rootViewController
   var gc = GKGameCenterViewController()
   gc.gameCenterDelegate = self
   vc?.presentViewController(gc, animated: true, completion: nil)
 }