如何快速将GameCenter应用于应用程序? [英] How to put GameCenter on application with swift?

问题描述

我使用SpriteKit和Xcode 7 Beta开发了一款游戏.我尝试添加GameCenter和排行榜，但是问题是排行榜中的得分不会改变(HighScore不会上传到GameCenter)，它始终保持为0，而且我不知道如何解决.我正在使用2个不同的文件:GameViewController.swift和PointsLabel.swift

I made a game using SpriteKit and Xcode 7 beta. I tried to add GameCenter and Leaderboard but the problem is that the score in the leaderboard won't change (HighScore doesn't upload to GameCenter), It stay 0 all the time and I don't know how to fix it. I'm using 2 different files: GameViewController.swift, and PointsLabel.swift

GameViewController.swift:

GameViewController.swift:

import GameKit

class GameViewController: UIViewController,UIGestureRecognizerDelegate, GKGameCenterControllerDelegate {

var score: PointsLabel!

override func viewDidLoad() {
    super.viewDidLoad()

    //initiate gamecenter
func authenticateLocalPlayer(){

    let localPlayer = GKLocalPlayer.localPlayer()

    localPlayer.authenticateHandler = {(GameViewController, error) -> Void in

        if (GameViewController != nil) {
            self.presentViewController(GameViewController!, animated: true, completion: nil)
        }

        else {
            print((GKLocalPlayer.localPlayer().authenticated))
        }
     }
  }
}

@IBAction func leaderboard(sender: UIButton) {
    saveHighscore(score)
    showLeader()
}


//send high score to leaderboard
func saveHighscore(score:Int) {

    //check if user is signed in
    if GKLocalPlayer.localPlayer().authenticated {

        let scoreReporter = GKScore(leaderboardIdentifier: "Leaderboard_01")

        scoreReporter.value = Int64(score)

        let scoreArray: [GKScore] = [scoreReporter]

        GKScore.reportScores(scoreArray, withCompletionHandler: {error -> Void in
            if error != nil {
                print("error")
            }
        })
    }
}


    //shows leaderboard screen
    func showLeader() {
        let vc = self.view?.window?.rootViewController
        let gc = GKGameCenterViewController()
        gc.gameCenterDelegate = self
        vc?.presentViewController(gc, animated: true, completion: nil)
    }
}

//hides leaderboard screen
func gameCenterViewControllerDidFinish(gameCenterViewController: GKGameCenterViewController)
{
    gameCenterViewController.dismissViewControllerAnimated(true, completion: nil)

}

此文件中存在错误:

无法使用类型为((PointsLabel！)''的参数列表调用'saveHighscore'

Cannot invoke 'saveHighscore' with an argument list of type '(PointsLabel!)'

关于代码:

@IBAction func leaderboard(sender: UIButton) {
    saveHighscore(score) //<- Here is Error
    showLeader()
}

PointsLabel.swift:

PointsLabel.swift:

import Foundation
import UIKit
import SpriteKit

class PointsLabel: SKLabelNode {

var score:Int = 0

init(num: Int) {
    super.init()

    fontColor = UIColor.blackColor()
    fontSize = 30.0

    score = num
    text = "\(num)"
}

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

func increment() {
    score++
    text = "\(score)"
}

func setTo(num: Int) {
    self.score = num
    text = "\(self.score)"
 }
}

我不知道如何解决！

推荐答案

您的score变量的类型为PointsLabel，但是您的saveHighscore函数需要一个Int作为参数.

Your score variable is of type PointsLabel but your saveHighscore function expects an Int as parameter.

查看您的代码，变量score将是PointsLabel的实例，因此我想您可以使用实例化类的score属性，该属性是Int(事实上，您使用了分数"作为两个变量的名称是令人困惑的.我建议更改名称以使其更明确.)

Looking at your code, the variable score will be an instance of PointsLabel so I guess you could use the score property of your instanciated class, which is an Int (the fact that you used "score" as a name for both variables is confusing. I suggest changing names to make them more explicit.).

@IBAction func leaderboard(sender: UIButton) {
    saveHighscore(score.score)
    showLeader()
}

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