last changes

GoldWars/GoldWars.xcodeproj/project.pbxproj

@@ -46,6 +46,11 @@
 		AB21D7D5246C748A00B09CBA /* MapFactory.swift in Sources */ = {isa = PBXBuildFile; fileRef = AB21D7D4246C748A00B09CBA /* MapFactory.swift */; };
 		ABA03DA0244BD54F00A66916 /* Base.swift in Sources */ = {isa = PBXBuildFile; fileRef = ABA03D9F244BD54F00A66916 /* Base.swift */; };
 		ABC0C3732481509300387B8F /* MapUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = ABC0C3722481509300387B8F /* MapUtils.swift */; };
+		AE57F11D248713D7003F0802 /* StateManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = AE57F118248713D7003F0802 /* StateManager.swift */; };
+		AE57F11E248713D7003F0802 /* SyncingState.swift in Sources */ = {isa = PBXBuildFile; fileRef = AE57F119248713D7003F0802 /* SyncingState.swift */; };
+		AE57F11F248713D7003F0802 /* EndGameState.swift in Sources */ = {isa = PBXBuildFile; fileRef = AE57F11A248713D7003F0802 /* EndGameState.swift */; };
+		AE57F120248713D7003F0802 /* GameState.swift in Sources */ = {isa = PBXBuildFile; fileRef = AE57F11B248713D7003F0802 /* GameState.swift */; };
+		AE57F121248713D7003F0802 /* MenuState.swift in Sources */ = {isa = PBXBuildFile; fileRef = AE57F11C248713D7003F0802 /* MenuState.swift */; };
 		C04783EE2468583F004961FB /* intro-music.mp3 in Resources */ = {isa = PBXBuildFile; fileRef = C04783ED2468583F004961FB /* intro-music.mp3 */; };
 		C04783F024685995004961FB /* SettingsScene.swift in Sources */ = {isa = PBXBuildFile; fileRef = C04783EF24685995004961FB /* SettingsScene.swift */; };
 		C05BB9C4247D890C00411249 /* SliderComponent.swift in Sources */ = {isa = PBXBuildFile; fileRef = C05BB9C3247D890C00411249 /* SliderComponent.swift */; };
@@ -111,6 +116,11 @@
 		AB21D7D4246C748A00B09CBA /* MapFactory.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MapFactory.swift; sourceTree = "<group>"; };
 		ABA03D9F244BD54F00A66916 /* Base.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Base.swift; sourceTree = "<group>"; };
 		ABC0C3722481509300387B8F /* MapUtils.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MapUtils.swift; sourceTree = "<group>"; };
+		AE57F118248713D7003F0802 /* StateManager.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = StateManager.swift; sourceTree = "<group>"; };
+		AE57F119248713D7003F0802 /* SyncingState.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SyncingState.swift; sourceTree = "<group>"; };
+		AE57F11A248713D7003F0802 /* EndGameState.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = EndGameState.swift; sourceTree = "<group>"; };
+		AE57F11B248713D7003F0802 /* GameState.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GameState.swift; sourceTree = "<group>"; };
+		AE57F11C248713D7003F0802 /* MenuState.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MenuState.swift; sourceTree = "<group>"; };
 		C04783ED2468583F004961FB /* intro-music.mp3 */ = {isa = PBXFileReference; lastKnownFileType = audio.mp3; path = "intro-music.mp3"; sourceTree = "<group>"; };
 		C04783EF24685995004961FB /* SettingsScene.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SettingsScene.swift; sourceTree = "<group>"; };
 		C05BB9C3247D890C00411249 /* SliderComponent.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SliderComponent.swift; sourceTree = "<group>"; };
@@ -162,6 +172,7 @@
 		110360D1244B101A008610AF /* GoldWars */ = {
 			isa = PBXGroup;
 			children = (
+				AE6BB1CB2481941D0063ECAE /* States */,
 				C04783ED2468583F004961FB /* intro-music.mp3 */,
 				9ECD3699245C91F7008DEEBD /* GoldWars.entitlements */,
 				9E11FF74245CD79100EED3BE /* Partikels */,
@@ -286,6 +297,18 @@
 			path = Map;
 			sourceTree = "<group>";
 		};
+		AE6BB1CB2481941D0063ECAE /* States */ = {
+			isa = PBXGroup;
+			children = (
+				AE57F11A248713D7003F0802 /* EndGameState.swift */,
+				AE57F11B248713D7003F0802 /* GameState.swift */,
+				AE57F11C248713D7003F0802 /* MenuState.swift */,
+				AE57F118248713D7003F0802 /* StateManager.swift */,
+				AE57F119248713D7003F0802 /* SyncingState.swift */,
+			);
+			path = States;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -404,7 +427,11 @@
 				9E174C88245DF1FF00209FF0 /* BackgroundComponent.swift in Sources */,
 				9E78ACBA245CBDAF00526FF7 /* HUD.swift in Sources */,
 				9EC2FBA72476B1EC00ABF11F /* PlayerInfoComponent.swift in Sources */,
+				AE57F11F248713D7003F0802 /* EndGameState.swift in Sources */,
 				9EEDE02D246FCD770096C735 /* SpinningLogoEntity.swift in Sources */,
+				AE57F11D248713D7003F0802 /* StateManager.swift in Sources */,
+				AE57F11E248713D7003F0802 /* SyncingState.swift in Sources */,
+				AE57F120248713D7003F0802 /* GameState.swift in Sources */,
 				9E174C86245DD91500209FF0 /* ButtonComponent.swift in Sources */,
 				11036113244B3E30008610AF /* MenuScene.swift in Sources */,
 				C099579C246C5E5C0016AA22 /* DataService.swift in Sources */,
@@ -428,6 +455,7 @@
 				C05BB9C4247D890C00411249 /* SliderComponent.swift in Sources */,
 				110360D3244B101A008610AF /* AppDelegate.swift in Sources */,
 				9EC86B9F245C88A300796EF3 /* Modal.swift in Sources */,
+				AE57F121248713D7003F0802 /* MenuState.swift in Sources */,
 				C05FAED62468559D0006AF2E /* SoundManager.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -589,8 +617,8 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_ENTITLEMENTS = GoldWars/GoldWars.entitlements;
-				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_IDENTITY = "iPhone Developer";
-				CODE_SIGN_STYLE = Automatic;
+				CODE_SIGN_STYLE = Manual;
 				CURRENT_PROJECT_VERSION = 3;
 				DEVELOPMENT_TEAM = DDKFQG46BQ;
 				INFOPLIST_FILE = GoldWars/Info.plist;
@@ -601,7 +629,7 @@
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = de.hft.stuttgart.ip2.goldwars;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				PROVISIONING_PROFILE_SPECIFIER = "";
+				PROVISIONING_PROFILE_SPECIFIER = "Developer Profile";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 2;
 			};
@@ -612,8 +640,8 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_ENTITLEMENTS = GoldWars/GoldWars.entitlements;
-				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_IDENTITY = "iPhone Developer";
-				CODE_SIGN_STYLE = Automatic;
+				CODE_SIGN_STYLE = Manual;
 				CURRENT_PROJECT_VERSION = 3;
 				DEVELOPMENT_TEAM = DDKFQG46BQ;
 				INFOPLIST_FILE = GoldWars/Info.plist;
@@ -624,7 +652,7 @@
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = de.hft.stuttgart.ip2.goldwars;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				PROVISIONING_PROFILE_SPECIFIER = "";
+				PROVISIONING_PROFILE_SPECIFIER = "Developer Profile";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 2;
 			};

GoldWars/GoldWars/GameCenterManager.swift

@@ -147,10 +147,14 @@ final class GameCenterManager: NSObject, GKMatchmakerViewControllerDelegate, GKG
                     os_log("State 2 erhalten", log: LOG, type: .info)
                     sendStateToPeers(state: State(state: 3))
                     initIsFinish = true
+                     print("entered gameSt in case 2 match")
+                    StateManager.sharedInstance.stateMachine?.enter(GameState.self)
                     os_log("Spiel startet", log: LOG, type: .info)
                 case 3:
                     os_log("State 3 erhalten", log: LOG, type: .info)
                     initIsFinish = true
+                    print("entered gameSt in case 3 match")
+                    StateManager.sharedInstance.stateMachine?.enter(GameState.self)
                     os_log("Spiel startet", log: LOG, type: .info)
                 case 4:
                     os_log("State 4 erhalten, Peer hat verloren", log: LOG, type: .info)
@@ -166,11 +170,13 @@ final class GameCenterManager: NSObject, GKMatchmakerViewControllerDelegate, GKG
             DataService.sharedInstance.addRemotePlayerMoves(playerName: player.displayName, localRoundData: roundData)
         }
         if let snapshotModel = try? jsonDecoder.decode(SnapshotModel.self, from: data) {
+            StateManager.sharedInstance.stateMachine?.enter(SyncingState.self)
             DataService.sharedInstance.snapshotModel = snapshotModel
             RoundCalculatorService.sharedInstance.currentRound += 1
             entityManager.getHUD()?.setCurrentRound(round: RoundCalculatorService.sharedInstance.currentRound)
             entityManager.updateSnapshotModel(snapshotModel: snapshotModel)
             entityManager.getHUD()?.startWithDuration()
+            StateManager.sharedInstance.stateMachine?.enter(GameState.self)
         }
         if let mapModel = try? jsonDecoder.decode(MapGenerationModel.self, from: data) {
             os_log("Peer hat Map erhalten", log: LOG, type: .info)
@@ -180,10 +186,9 @@ final class GameCenterManager: NSObject, GKMatchmakerViewControllerDelegate, GKG
             os_log("Map model wurde gesetzt", log: LOG, type: .info)
             GameCenterManager.sharedInstance.isMatchStarted = true
             self.gameScene = scene
+            StateManager.sharedInstance.gameSc = scene
             sendStateToPeers(state: State(state: 2))
             os_log("State 2 wurde an Host gesendet", log: LOG, type: .info)
-            initIsFinish = true
-            os_log("Peer startet Spiel", log: LOG, type: .info)
         }
         MultiplayerNetwork.sharedInstance.isSending = false
     }
@@ -192,6 +197,7 @@ final class GameCenterManager: NSObject, GKMatchmakerViewControllerDelegate, GKG
         self.gameScene = GameScene(size: self.menusc!.size)
         let mapModel = MapFactory(scene: self.gameScene!, entityManager: entityManager).load()
         os_log("Map wurde erstellt", log: LOG, type: .info)
+        StateManager.sharedInstance.gameSc = gameScene
         MultiplayerNetwork.sharedInstance.sendMapModelToPlayers(mapModel: mapModel)
         os_log("Map wurde an Peer gesendet", log: LOG, type: .info)
         DataService.sharedInstance.setSnapshotModel(snapshotModel: entityManager.getSnapshotModel())
@@ -232,13 +238,16 @@ final class GameCenterManager: NSObject, GKMatchmakerViewControllerDelegate, GKG
     }
     func matchmakerViewControllerWasCancelled(_ viewController: GKMatchmakerViewController) {
         viewController.dismiss(animated: true, completion: nil)
+        StateManager.sharedInstance.stateMachine?.enter(MenuState.self)
     }
     
     func matchmakerViewController(_ viewController: GKMatchmakerViewController, didFailWithError error: Error) {
         viewController.dismiss(animated: true, completion: nil)
+        StateManager.sharedInstance.stateMachine?.enter(MenuState.self)
     }
     
     func matchmakerViewController(_ viewController: GKMatchmakerViewController, didFind match: GKMatch) {
+        StateManager.sharedInstance.stateMachine?.enter(SyncingState.self)
         viewController.dismiss(animated: true, completion: nil)
         myMatch = match
         if !isMatchStarted && match.expectedPlayerCount == 0 {

GoldWars/GoldWars/GameViewController.swift

@@ -6,7 +6,6 @@
 //  Copyright © 2020 SP2. All rights reserved.
 //
 
-import UIKit
 import SpriteKit
 import GameplayKit
 
@@ -15,19 +14,12 @@ class GameViewController: UIViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
     
-        if let view = self.view as! SKView? {
+        StateManager.sharedInstance.gameVC = self
-            let scene = MenuScene(size: self.view.bounds.size)
+        StateManager.sharedInstance.stateMachine?.enter(MenuState.self)
-            EntityManager.menuEMInstance.setScene(scene: scene)
+        
-            scene.scaleMode = .aspectFill
-            view.presentScene(scene)
-            //TODO: create dev profile or remove on delivery
-            view.showsFPS = true
-            view.showsNodeCount = true
-        }
         GameCenterManager.sharedInstance.viewController = self
-      
-        
     }
+    
     override var shouldAutorotate: Bool {
         return true
     }

GoldWars/GoldWars/RoundCalculatorService.swift

@@ -23,14 +23,16 @@ class RoundCalculatorService {
     let MAX_ROUNDS = 20
     var currentRound = 1
     var isCalculating = false
+    
     var numberOfAttacks = 0
     var numberOfOwnUnitMoves = 0
     
     func calculateRound() {
+        StateManager.sharedInstance.stateMachine?.enter(SyncingState.self)
         os_log("Started calculating Round", log: RoundCalculatorService.LOG, type: .info)
+        
         isCalculating = true
         let currentSnapshotModel = DataService.sharedInstance.snapshotModel
-        
         var baseSpecificMoves = collectBaseSpecificMoves()
         
         // TODO: Refactor to a less complex way
@@ -169,6 +171,7 @@ class RoundCalculatorService {
         entityManager.updateSnapshotModel(snapshotModel: currentSnapshotModel!)
         entityManager.getHUD()?.startWithDuration()
         os_log("Finished calculating Round", log: RoundCalculatorService.LOG, type: .info)
+        StateManager.sharedInstance.stateMachine?.enter(GameState.self)
     }
     
     func collectBaseSpecificMoves() -> [Int: [String: [PlayerMove]]] {

GoldWars/GoldWars/Scenes/GameScene.swift

@@ -72,7 +72,7 @@ class GameScene: SKScene{
     }
     
     override func update(_ currentTime: TimeInterval) {
-        entityManager.getBackground()?.update(deltaTime: currentTime)
+        StateManager.sharedInstance.stateMachine!.update(deltaTime: currentTime)
     }
     
     func addBaseDetails(touchLocation: CGPoint, spriteNode: SKNode?, touches: Set<UITouch>, event: UIEvent?, entity: GKEntity){

GoldWars/GoldWars/Scenes/MenuScene.swift

@@ -8,12 +8,14 @@
 
 import SpriteKit
 import SceneKit
+
 class MenuScene: SKScene {
     
     var entityManager = EntityManager.menuEMInstance
     
     override func sceneDidLoad() {
         GameCenterManager.sharedInstance.menusc = self
+        StateManager.sharedInstance.menuSc = self
         entityManager.setScene(scene: self)
         let midX = self.size.width / 2
         let midY = self.size.height / 2
@@ -23,10 +25,9 @@ class MenuScene: SKScene {
                                  position: CGPoint(x: midX, y: midY),
                                  onButtonPress: {
                                     if CommandLine.arguments.contains("--no-matchmaking") {
-                                        self.loadScene(scene: GameScene(size: self.size))
+                                        StateManager.sharedInstance.stateMachine?.enter(GameState.self)
                                         SoundManager.sharedInstance.stopMenuMusic()
                                     } else {
-                                      
                                         if GameCenterManager.isAuthenticated {
                                             GameCenterManager.sharedInstance.presentMatchmaker()
                                         }else {
@@ -68,14 +69,7 @@ class MenuScene: SKScene {
     }
     
     override func update(_ currentTime: TimeInterval) {
-        if entityManager.entities.count != 0 {
+        StateManager.sharedInstance.stateMachine!.update(deltaTime: currentTime)
-            entityManager.getBackground()!.update(deltaTime: currentTime)
-            entityManager.getButtonByName(buttonName: "startGameButton").component(ofType: ButtonComponent.self)?.buttonNode.isEnabled = GameCenterManager.isAuthenticated
-        }
-        
-        if GameCenterManager.sharedInstance.initIsFinish {
-            self.loadScene(scene: GameCenterManager.sharedInstance.gameScene!)
     }
     
 }
-}

GoldWars/GoldWars/States/EndGameState.swift

@@ -0,0 +1,37 @@
+//
+//  EndGameState.swift
+//  GoldWars
+//
+//  Created by Chauntalle Schüle on 29.05.20.
+//  Copyright © 2020 SP2. All rights reserved.
+//
+
+import GameKit
+import os
+
+class EndGameState: GKState {
+    
+    let LOG = OSLog.init(subsystem: "EndGameState", category: "EndGameState")
+    
+    override func isValidNextState(_ stateClass: AnyClass) -> Bool {
+        if stateMachine?.currentState is EndGameState && stateClass is EndGameState.Type {
+            os_log("Already in EndGame State", log: LOG, type: .info)
+            return false
+        }
+        if stateClass is SyncingState.Type || stateClass is GameState.Type {
+            os_log("Failed: Entering SyncingState and GameState after EndGameState is not allowed", log: LOG, type: .info)
+            return false
+        }
+        return stateClass is MenuState.Type
+    }
+    
+    override func update(deltaTime seconds: TimeInterval) {
+    }
+    
+    override func didEnter(from previousState: GKState?) {
+        os_log("Entered EndGame State", log: LOG, type: .info)
+    }
+    
+    override func willExit(to nextState: GKState) {
+    }
+}

GoldWars/GoldWars/States/GameState.swift

@@ -0,0 +1,43 @@
+//
+//  GameState.swift
+//  GoldWars
+//
+//  Created by Chauntalle Schüle on 29.05.20.
+//  Copyright © 2020 SP2. All rights reserved.
+//
+
+import GameKit
+import os
+
+class GameState: GKState {
+    
+    let LOG = OSLog.init(subsystem: "GameState", category: "GameState")
+    
+    override func isValidNextState(_ stateClass: AnyClass) -> Bool {
+        if stateMachine?.currentState is GameState && stateClass is GameState.Type {
+            os_log("Already in Game State", log: LOG, type: .info)
+            return false
+        }
+        if stateClass is MenuState.Type || stateClass is EndGameState.Type {
+            os_log("Failed: Entering MenuState and EndgameState after GameState is not allowed", log: LOG, type: .info)
+            return false
+        }
+        return stateClass is SyncingState.Type
+    }
+    
+    override func didEnter(from previousState: GKState?) {
+        os_log("Entered Game State", log: LOG, type: .info)
+        if CommandLine.arguments.contains("--no-matchmaking") {
+            StateManager.sharedInstance.menuSc!.loadScene(scene: GameScene(size: StateManager.sharedInstance.menuSc!.size))
+        } else if RoundCalculatorService.sharedInstance.currentRound == 1 {
+            StateManager.sharedInstance.menuSc!.loadScene(scene: StateManager.sharedInstance.gameSc!)
+        }
+    }
+    
+    override func update(deltaTime seconds: TimeInterval) {
+        EntityManager.gameEMInstance.getBackground()?.update(deltaTime: seconds)
+    }
+    
+    override func willExit(to nextState: GKState) {
+    }
+}

GoldWars/GoldWars/States/MenuState.swift

@@ -0,0 +1,57 @@
+//
+//  MenuState.swift
+//  GoldWars
+//
+//  Created by Chauntalle Schüle on 29.05.20.
+//  Copyright © 2020 SP2. All rights reserved.
+//
+
+import GameKit
+import os
+
+class MenuState: GKState {
+    
+    let LOG = OSLog.init(subsystem: "MenuState", category: "MenuState")
+    
+    override func isValidNextState(_ stateClass: AnyClass) -> Bool {
+        if stateMachine?.currentState is MenuState && stateClass is MenuState.Type {
+            os_log("Already in Menu State", log: LOG, type: .info)
+            return false
+        }
+        if stateClass is EndGameState.Type {
+            os_log("Entering EndGameState after MenuState is not allowed", log: LOG, type: .info)
+            return false
+        }
+        if CommandLine.arguments.contains("--no-matchmaking") {
+            return stateClass is GameState.Type
+        }
+        return stateClass is SyncingState.Type
+    }
+    
+    override func update(deltaTime seconds: TimeInterval) {
+        if EntityManager.menuEMInstance.entities.count != 0 {
+            EntityManager.menuEMInstance.getBackground()!.update(deltaTime: seconds)
+            EntityManager.menuEMInstance.getButtonByName(buttonName: "startGameButton").component(ofType: ButtonComponent.self)?.buttonNode.isEnabled = GameCenterManager.isAuthenticated
+        }
+    }
+    
+    override func didEnter(from previousState: GKState?) {
+        os_log("Entered Menu State", log: LOG, type: .info)
+      //  UIApplication.shared.windows[0].rootViewController
+        if (previousState == nil){
+            if let view = StateManager.sharedInstance.gameVC!.view as! SKView? {
+                let scene = MenuScene(size: StateManager.sharedInstance.gameVC!.view.bounds.size)
+                EntityManager.menuEMInstance.setScene(scene: scene)
+                scene.scaleMode = .aspectFill
+                view.presentScene(scene)
+                //TODO: create dev profile or remove on delivery
+                view.showsFPS = true
+                view.showsNodeCount = true
+            }
+        }
+    }
+    
+    override func willExit(to nextState: GKState) {
+    }
+    
+}

GoldWars/GoldWars/States/StateManager.swift

@@ -0,0 +1,32 @@
+//
+//  StateManager.swift
+//  GoldWars
+//
+//  Created by Chauntalle Schüle on 29.05.20.
+//  Copyright © 2020 SP2. All rights reserved.
+//
+
+import GameKit
+import os
+
+class StateManager{
+    
+    static let sharedInstance = StateManager()
+    
+    var stateMachine: GKStateMachine?
+    
+    var menuSc: MenuScene?
+    var gameVC: GameViewController?
+    var gameSc: GameScene?
+    
+    let LOG = OSLog.init(subsystem: "StateManager", category: "StateManager")
+    
+    init() {
+        let menuState = MenuState()
+        let syncingState = SyncingState()
+        let playingState = GameState()
+        let endGameState = EndGameState()
+        
+        stateMachine = GKStateMachine(states: [menuState, syncingState, playingState, endGameState])
+    }
+}

GoldWars/GoldWars/States/SyncingState.swift

@@ -0,0 +1,41 @@
+//
+//  SyncingState.swift
+//  GoldWars
+//
+//  Created by Chauntalle Schüle on 29.05.20.
+//  Copyright © 2020 SP2. All rights reserved.
+//
+
+import GameKit
+import os
+
+class SyncingState: GKState {
+    
+    let LOG = OSLog.init(subsystem: "SyncingState", category: "SyncingState")
+    var previousState: GKState?
+    
+    override func isValidNextState(_ stateClass: AnyClass) -> Bool {
+        if stateMachine?.currentState is SyncingState && stateClass is SyncingState.Type {
+            os_log("Already in Syncing State", log: LOG, type: .info)
+            return false
+        }
+        return stateClass is GameState.Type || stateClass is EndGameState.Type || stateClass is MenuState.Type
+    }
+    
+    override func didEnter(from previousState: GKState?) {
+        os_log("Entered Syncing State", log: LOG, type: .info)
+        self.previousState = previousState
+    }
+    
+    override func update(deltaTime seconds: TimeInterval) {
+        if previousState is MenuState {
+            if EntityManager.menuEMInstance.entities.count != 0 {
+                EntityManager.menuEMInstance.getBackground()!.update(deltaTime: seconds)
+                EntityManager.menuEMInstance.getButtonByName(buttonName: "startGameButton").component(ofType: ButtonComponent.self)?.buttonNode.isEnabled = GameCenterManager.isAuthenticated
+            }
+        }
+    }
+    
+    override func willExit(to nextState: GKState) {
+    }
+}