Created
September 14, 2024 22:33
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Trying to figure out the boilerplate for a simple GameKit implementation
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| import GameKit | |
| import SwiftUI | |
| struct GameTestView: View { | |
| @StateObject private var gameKitManager = GameKitManager() | |
| @State private var timer: Timer? | |
| var body: some View { | |
| VStack { | |
| Text("Score: \(gameKitManager.score)") | |
| Text("Time: \(gameKitManager.timeRemaining)") | |
| Button("Shoot Target") { | |
| gameKitManager.incrementScore() | |
| } | |
| .disabled(gameKitManager.isGameOver) | |
| Button("Show Leaderboard") { | |
| gameKitManager.showLeaderboard() | |
| } | |
| } | |
| .onAppear { | |
| startGame() | |
| } | |
| .alert(isPresented: $gameKitManager.isGameOver) { | |
| Alert(title: Text("Game Over"), | |
| message: Text("Your score: \(gameKitManager.score)"), | |
| dismissButton: .default(Text("OK")) { | |
| gameKitManager.submitScore() | |
| resetGame() | |
| }) | |
| } | |
| } | |
| func startGame() { | |
| timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { _ in | |
| if gameKitManager.timeRemaining > 0 { | |
| gameKitManager.timeRemaining -= 1 | |
| } else { | |
| endGame() | |
| } | |
| } | |
| } | |
| func endGame() { | |
| timer?.invalidate() | |
| gameKitManager.isGameOver = true | |
| } | |
| func resetGame() { | |
| gameKitManager.score = 0 | |
| gameKitManager.timeRemaining = 60 | |
| gameKitManager.isGameOver = false | |
| startGame() | |
| } | |
| } | |
| class GameKitManager: NSObject, GKGameCenterControllerDelegate, ObservableObject { | |
| @Published var isAuthenticated = false | |
| @Published var score = 0 | |
| @Published var timeRemaining = 60 | |
| @Published var isGameOver = false | |
| override init() { | |
| super.init() | |
| authenticatePlayer() | |
| } | |
| func authenticatePlayer() { | |
| GKLocalPlayer.local.authenticateHandler = { viewController, error in | |
| if let viewController = viewController { | |
| // Present the view controller if needed | |
| } else if let error = error { | |
| print("Error: \(error.localizedDescription).") | |
| } else { | |
| self.isAuthenticated = true | |
| self.setupAccessPoint() | |
| } | |
| } | |
| } | |
| func setupAccessPoint() { | |
| GKAccessPoint.shared.location = .topLeading | |
| GKAccessPoint.shared.showHighlights = true | |
| GKAccessPoint.shared.isActive = true | |
| } | |
| func incrementScore() { | |
| score += 1 | |
| } | |
| func submitScore() { | |
| GKLeaderboard.submitScore(score, context: 0, player: GKLocalPlayer.local, | |
| leaderboardIDs: ["your_leaderboard_id"]) { error in | |
| if let error = error { | |
| print("Error submitting score: \(error.localizedDescription)") | |
| } | |
| } | |
| } | |
| func showLeaderboard() { | |
| if let rootViewController = UIApplication.shared.windows.first?.rootViewController { | |
| let viewController = GKGameCenterViewController(leaderboardID: "your_leaderboard_id", | |
| playerScope: .global, | |
| timeScope: .allTime) | |
| viewController.gameCenterDelegate = self | |
| rootViewController.present(viewController, animated: true) | |
| } | |
| } | |
| func gameCenterViewControllerDidFinish(_ gameCenterViewController: GKGameCenterViewController) { | |
| gameCenterViewController.dismiss(animated: true) | |
| } | |
| } | |
| extension GameKitManager { | |
| func reportAchievement(identifier: String, percentComplete: Double) { | |
| let achievement = GKAchievement(identifier: identifier) | |
| achievement.percentComplete = percentComplete | |
| GKAchievement.report([achievement]) { error in | |
| if let error = error { | |
| print("Error reporting achievement: \(error.localizedDescription)") | |
| } | |
| } | |
| } | |
| } |
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