CODEWITHSUNDEEP
swiftsprite-kitgame-centerxcode7
Emm
Emm

Reputation: 1603

How to put GameCenter on application with 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:

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)

}

There is an Error in this file:

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

on code: 

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

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)"
 }
}

I don't know how to fix it!

Upvotes: 2

Views: 451

Answers (1)

Eric Aya
Eric Aya

Reputation: 70097

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

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()
}

Upvotes: 1

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