update for split-screen mode

This includes splitting GameRunner (the main game instance) from Game1 (now a per-screen game state), adding a PerScreen<T> utility to simplify per-screen values, adding separate per-screen input handling and events, adding new Context fields for split-screen, and logging the screen ID in split-screen mode to distinguish log entries.

1 files changed, 191 insertions, 167 deletions

diff --git a/src/SMAPI/Framework/SCore.cs b/src/SMAPI/Framework/SCore.cs
index 1b4c32bb..a7f8fbed 100644
--- a/src/SMAPI/Framework/SCore.cs
+++ b/src/SMAPI/Framework/SCore.cs
@@ -85,17 +85,14 @@ namespace StardewModdingAPI.Framework
         private readonly CommandManager CommandManager = new CommandManager();
 
         /// <summary>The underlying game instance.</summary>
-        private SGame Game;
-
-        /// <summary>Manages input visible to the game.</summary>
-        private SInputState Input => SGame.Input;
-
-        /// <summary>The game's core multiplayer utility.</summary>
-        private SMultiplayer Multiplayer => SGame.Multiplayer;
+        private SGameRunner Game;
 
         /// <summary>SMAPI's content manager.</summary>
         private ContentCoordinator ContentCore;
 
+        /// <summary>The game's core multiplayer utility for the main player.</summary>
+        private SMultiplayer Multiplayer;
+
         /// <summary>Tracks the installed mods.</summary>
         /// <remarks>This is initialized after the game starts.</remarks>
         private readonly ModRegistry ModRegistry = new ModRegistry();
@@ -103,11 +100,6 @@ namespace StardewModdingAPI.Framework
         /// <summary>Manages SMAPI events for mods.</summary>
         private readonly EventManager EventManager;
 
-        /// <summary>Monitors the entire game state for changes.</summary>
-        private WatcherCore Watchers;
-
-        /// <summary>A snapshot of the current <see cref="Watchers"/> state.</summary>
-        private readonly WatcherSnapshot WatcherSnapshot = new WatcherSnapshot();
 
         /****
         ** State
@@ -127,25 +119,15 @@ namespace StardewModdingAPI.Framework
         /// <summary>Whether post-game-startup initialization has been performed.</summary>
         private bool IsInitialized;
 
+        /// <summary>Whether the player just returned to the title screen.</summary>
+        public bool JustReturnedToTitle { get; set; }
+
         /// <summary>The maximum number of consecutive attempts SMAPI should make to recover from an update error.</summary>
         private readonly Countdown UpdateCrashTimer = new Countdown(60); // 60 ticks = roughly one second
 
-        /// <summary>The number of ticks until SMAPI should notify mods that the game has loaded.</summary>
-        /// <remarks>Skipping a few frames ensures the game finishes initializing the world before mods try to change it.</remarks>
-        private readonly Countdown AfterLoadTimer = new Countdown(5);
-
         /// <summary>Whether custom content was removed from the save data to avoid a crash.</summary>
         private bool IsSaveContentRemoved;
 
-        /// <summary>Whether the game is saving and SMAPI has already raised <see cref="IGameLoopEvents.Saving"/>.</summary>
-        private bool IsBetweenSaveEvents;
-
-        /// <summary>Whether the game is creating the save file and SMAPI has already raised <see cref="IGameLoopEvents.SaveCreating"/>.</summary>
-        private bool IsBetweenCreateEvents;
-
-        /// <summary>Whether the player just returned to the title screen.</summary>
-        private bool JustReturnedToTitle;
-
         /// <summary>Asset interceptors added or removed since the last tick.</summary>
         private readonly List<AssetInterceptorChange> ReloadAssetInterceptorsQueue = new List<AssetInterceptorChange>();
 
@@ -191,7 +173,7 @@ namespace StardewModdingAPI.Framework
             if (File.Exists(Constants.ApiUserConfigPath))
                 JsonConvert.PopulateObject(File.ReadAllText(Constants.ApiUserConfigPath), this.Settings);
 
-            this.LogManager = new LogManager(logPath: logPath, colorConfig: this.Settings.ConsoleColors, writeToConsole: writeToConsole, isVerbose: this.Settings.VerboseLogging, isDeveloperMode: this.Settings.DeveloperMode);
+            this.LogManager = new LogManager(logPath: logPath, colorConfig: this.Settings.ConsoleColors, writeToConsole: writeToConsole, isVerbose: this.Settings.VerboseLogging, isDeveloperMode: this.Settings.DeveloperMode, getScreenIdForLog: this.GetScreenIdForLog);
 
             SCore.PerformanceMonitor = new PerformanceMonitor(this.Monitor);
             this.EventManager = new EventManager(this.ModRegistry, SCore.PerformanceMonitor);
@@ -250,22 +232,22 @@ namespace StardewModdingAPI.Framework
                 LocalizedContentManager.OnLanguageChange += locale => this.OnLocaleChanged();
 
                 // override game
-                var multiplayer = new SMultiplayer(this.Monitor, this.EventManager, this.Toolkit.JsonHelper, this.ModRegistry, this.Reflection, this.OnModMessageReceived, this.Settings.LogNetworkTraffic);
-                var modHooks = new SModHooks(this.OnNewDayAfterFade);
+                this.Multiplayer = new SMultiplayer(this.Monitor, this.EventManager, this.Toolkit.JsonHelper, this.ModRegistry, this.Reflection, this.OnModMessageReceived, this.Settings.LogNetworkTraffic);
                 SGame.CreateContentManagerImpl = this.CreateContentManager; // must be static since the game accesses it before the SGame constructor is called
-                this.Game = new SGame(
+                this.Game = new SGameRunner(
                     monitor: this.Monitor,
                     reflection: this.Reflection,
                     eventManager: this.EventManager,
-                    modHooks: modHooks,
-                    multiplayer: multiplayer,
+                    modHooks: new SModHooks(this.OnNewDayAfterFade),
+                    multiplayer: this.Multiplayer,
                     exitGameImmediately: this.ExitGameImmediately,
 
                     onGameContentLoaded: this.OnGameContentLoaded,
                     onGameUpdating: this.OnGameUpdating,
+                    onPlayerInstanceUpdating: this.OnPlayerInstanceUpdating,
                     onGameExiting: this.OnGameExiting
                 );
-                StardewValley.Program.gamePtr = this.Game;
+                StardewValley.GameRunner.instance = this.Game;
 
                 // apply game patches
                 new GamePatcher(this.Monitor).Apply(
@@ -422,12 +404,6 @@ namespace StardewModdingAPI.Framework
         /// <summary>Raised after the game finishes initializing.</summary>
         private void OnGameInitialized()
         {
-            // set initial state
-            this.Input.TrueUpdate();
-
-            // init watchers
-            this.Watchers = new WatcherCore(this.Input, this.Game.GetObservableLocations());
-
             // validate XNB integrity
             if (!this.ValidateContentIntegrity())
                 this.Monitor.Log("SMAPI found problems in your game's content files which are likely to cause errors or crashes. Consider uninstalling XNB mods or reinstalling the game.", LogLevel.Error);
@@ -460,8 +436,6 @@ namespace StardewModdingAPI.Framework
         /// <param name="runGameUpdate">Invoke the game's update logic.</param>
         private void OnGameUpdating(GameTime gameTime, Action runGameUpdate)
         {
-            var events = this.EventManager;
-
             try
             {
                 /*********
@@ -471,15 +445,6 @@ namespace StardewModdingAPI.Framework
                 SCore.DeprecationManager.PrintQueued();
                 SCore.PerformanceMonitor.PrintQueuedAlerts();
 
-                // reapply overrides
-                if (this.JustReturnedToTitle)
-                {
-                    if (!(Game1.mapDisplayDevice is SDisplayDevice))
-                        Game1.mapDisplayDevice = this.GetMapDisplayDevice();
-
-                    this.JustReturnedToTitle = false;
-                }
-
                 /*********
                 ** First-tick initialization
                 *********/
@@ -490,25 +455,151 @@ namespace StardewModdingAPI.Framework
                 }
 
                 /*********
+                ** Special cases
+                *********/
+                // Abort if SMAPI is exiting.
+                if (this.CancellationToken.IsCancellationRequested)
+                {
+                    this.Monitor.Log("SMAPI shutting down: aborting update.");
+                    return;
+                }
+
+                /*********
+                ** Reload assets when interceptors are added/removed
+                *********/
+                if (this.ReloadAssetInterceptorsQueue.Any())
+                {
+                    // get unique interceptors
+                    AssetInterceptorChange[] interceptors = this.ReloadAssetInterceptorsQueue
+                        .GroupBy(p => p.Instance, new ObjectReferenceComparer<object>())
+                        .Select(p => p.First())
+                        .ToArray();
+                    this.ReloadAssetInterceptorsQueue.Clear();
+
+                    // log summary
+                    this.Monitor.Log("Invalidating cached assets for new editors & loaders...");
+                    this.Monitor.Log(
+                        "   changed: "
+                        + string.Join(", ",
+                            interceptors
+                                .GroupBy(p => p.Mod)
+                                .OrderBy(p => p.Key.DisplayName)
+                                .Select(modGroup =>
+                                    $"{modGroup.Key.DisplayName} ("
+                                    + string.Join(", ", modGroup.GroupBy(p => p.WasAdded).ToDictionary(p => p.Key, p => p.Count()).Select(p => $"{(p.Key ? "added" : "removed")} {p.Value}"))
+                                    + ")"
+                                )
+                        )
+                    );
+
+                    // reload affected assets
+                    this.ContentCore.InvalidateCache(asset => interceptors.Any(p => p.CanIntercept(asset)));
+                }
+
+                /*********
+                ** Execute commands
+                *********/
+                while (this.CommandQueue.TryDequeue(out string rawInput))
+                {
+                    // parse command
+                    string name;
+                    string[] args;
+                    Command command;
+                    try
+                    {
+                        if (!this.CommandManager.TryParse(rawInput, out name, out args, out command))
+                        {
+                            this.Monitor.Log("Unknown command; type 'help' for a list of available commands.", LogLevel.Error);
+                            continue;
+                        }
+                    }
+                    catch (Exception ex)
+                    {
+                        this.Monitor.Log($"Failed parsing that command:\n{ex.GetLogSummary()}", LogLevel.Error);
+                        continue;
+                    }
+
+                    // execute command
+                    try
+                    {
+                        command.Callback.Invoke(name, args);
+                    }
+                    catch (Exception ex)
+                    {
+                        if (command.Mod != null)
+                            command.Mod.LogAsMod($"Mod failed handling that command:\n{ex.GetLogSummary()}", LogLevel.Error);
+                        else
+                            this.Monitor.Log($"Failed handling that command:\n{ex.GetLogSummary()}", LogLevel.Error);
+                    }
+                }
+
+                /*********
+                ** Show in-game warnings (for main player only)
+                *********/
+                // save content removed
+                if (this.IsSaveContentRemoved && Context.IsWorldReady)
+                {
+                    this.IsSaveContentRemoved = false;
+                    Game1.addHUDMessage(new HUDMessage(this.Translator.Get("warn.invalid-content-removed"), HUDMessage.error_type));
+                }
+
+                /*********
+                ** Run game update
+                *********/
+                runGameUpdate();
+
+                /*********
+                ** Reset crash timer
+                *********/
+                this.UpdateCrashTimer.Reset();
+            }
+            catch (Exception ex)
+            {
+                // log error
+                this.Monitor.Log($"An error occured in the overridden update loop: {ex.GetLogSummary()}", LogLevel.Error);
+
+                // exit if irrecoverable
+                if (!this.UpdateCrashTimer.Decrement())
+                    this.ExitGameImmediately("The game crashed when updating, and SMAPI was unable to recover the game.");
+            }
+            finally
+            {
+                SCore.TicksElapsed++;
+            }
+        }
+
+        /// <summary>Raised when the game instance for a local player is updating (once per <see cref="OnGameUpdating"/> per player).</summary>
+        /// <param name="instance">The game instance being updated.</param>
+        /// <param name="gameTime">A snapshot of the game timing state.</param>
+        /// <param name="runUpdate">Invoke the game's update logic.</param>
+        private void OnPlayerInstanceUpdating(SGame instance, GameTime gameTime, Action runUpdate)
+        {
+            var events = this.EventManager;
+
+            try
+            {
+                // reapply overrides
+                if (this.JustReturnedToTitle)
+                {
+                    if (!(Game1.mapDisplayDevice is SDisplayDevice))
+                        Game1.mapDisplayDevice = this.GetMapDisplayDevice();
+
+                    this.JustReturnedToTitle = false;
+                }
+
+                /*********
                 ** Update input
                 *********/
                 // This should *always* run, even when suppressing mod events, since the game uses
                 // this too. For example, doing this after mod event suppression would prevent the
                 // user from doing anything on the overnight shipping screen.
-                SInputState inputState = this.Input;
+                SInputState inputState = instance.Input;
                 if (this.Game.IsActive)
                     inputState.TrueUpdate();
 
                 /*********
                 ** Special cases
                 *********/
-                // Abort if SMAPI is exiting.
-                if (this.CancellationToken.IsCancellationRequested)
-                {
-                    this.Monitor.Log("SMAPI shutting down: aborting update.");
-                    return;
-                }
-
                 // Run async tasks synchronously to avoid issues due to mod events triggering
                 // concurrently with game code.
                 bool saveParsed = false;
@@ -544,10 +635,10 @@ namespace StardewModdingAPI.Framework
                     this.Monitor.Log("Game loader done.");
                 }
 
-                if (SGame.NewDayTask?.Status == TaskStatus.Created)
+                if (instance.NewDayTask?.Status == TaskStatus.Created)
                 {
                     this.Monitor.Log("New day task synchronizing...");
-                    SGame.NewDayTask.RunSynchronously();
+                    instance.NewDayTask.RunSynchronously();
                     this.Monitor.Log("New day task done.");
                 }
 
@@ -560,11 +651,10 @@ namespace StardewModdingAPI.Framework
                 // a small chance that the task will finish after we defer but before the game checks,
                 // which means technically events should be raised, but the effects of missing one
                 // update tick are negligible and not worth the complications of bypassing Game1.Update.
-                if (SGame.NewDayTask != null || Game1.gameMode == Game1.loadingMode)
+                if (instance.NewDayTask != null || Game1.gameMode == Game1.loadingMode)
                 {
                     events.UnvalidatedUpdateTicking.RaiseEmpty();
-                    SCore.TicksElapsed++;
-                    runGameUpdate();
+                    runUpdate();
                     events.UnvalidatedUpdateTicked.RaiseEmpty();
                     return;
                 }
@@ -578,132 +668,52 @@ namespace StardewModdingAPI.Framework
                 if (Context.IsSaving)
                 {
                     // raise before-create
-                    if (!Context.IsWorldReady && !this.IsBetweenCreateEvents)
+                    if (!Context.IsWorldReady && !instance.IsBetweenCreateEvents)
                     {
-                        this.IsBetweenCreateEvents = true;
+                        instance.IsBetweenCreateEvents = true;
                         this.Monitor.Log("Context: before save creation.");
                         events.SaveCreating.RaiseEmpty();
                     }
 
                     // raise before-save
-                    if (Context.IsWorldReady && !this.IsBetweenSaveEvents)
+                    if (Context.IsWorldReady && !instance.IsBetweenSaveEvents)
                     {
-                        this.IsBetweenSaveEvents = true;
+                        instance.IsBetweenSaveEvents = true;
                         this.Monitor.Log("Context: before save.");
                         events.Saving.RaiseEmpty();
                     }
 
                     // suppress non-save events
                     events.UnvalidatedUpdateTicking.RaiseEmpty();
-                    SCore.TicksElapsed++;
-                    runGameUpdate();
+                    runUpdate();
                     events.UnvalidatedUpdateTicked.RaiseEmpty();
                     return;
                 }
 
                 /*********
-                ** Reload assets when interceptors are added/removed
-                *********/
-                if (this.ReloadAssetInterceptorsQueue.Any())
-                {
-                    // get unique interceptors
-                    AssetInterceptorChange[] interceptors = this.ReloadAssetInterceptorsQueue
-                        .GroupBy(p => p.Instance, new ObjectReferenceComparer<object>())
-                        .Select(p => p.First())
-                        .ToArray();
-                    this.ReloadAssetInterceptorsQueue.Clear();
-
-                    // log summary
-                    this.Monitor.Log("Invalidating cached assets for new editors & loaders...");
-                    this.Monitor.Log(
-                        "   changed: "
-                        + string.Join(", ",
-                            interceptors
-                                .GroupBy(p => p.Mod)
-                                .OrderBy(p => p.Key.DisplayName)
-                                .Select(modGroup =>
-                                    $"{modGroup.Key.DisplayName} ("
-                                    + string.Join(", ", modGroup.GroupBy(p => p.WasAdded).ToDictionary(p => p.Key, p => p.Count()).Select(p => $"{(p.Key ? "added" : "removed")} {p.Value}"))
-                                    + ")"
-                                )
-                        )
-                    );
-
-                    // reload affected assets
-                    this.ContentCore.InvalidateCache(asset => interceptors.Any(p => p.CanIntercept(asset)));
-                }
-
-                /*********
-                ** Execute commands
-                *********/
-                while (this.CommandQueue.TryDequeue(out string rawInput))
-                {
-                    // parse command
-                    string name;
-                    string[] args;
-                    Command command;
-                    try
-                    {
-                        if (!this.CommandManager.TryParse(rawInput, out name, out args, out command))
-                        {
-                            this.Monitor.Log("Unknown command; type 'help' for a list of available commands.", LogLevel.Error);
-                            continue;
-                        }
-                    }
-                    catch (Exception ex)
-                    {
-                        this.Monitor.Log($"Failed parsing that command:\n{ex.GetLogSummary()}", LogLevel.Error);
-                        continue;
-                    }
-
-                    // execute command
-                    try
-                    {
-                        command.Callback.Invoke(name, args);
-                    }
-                    catch (Exception ex)
-                    {
-                        if (command.Mod != null)
-                            command.Mod.LogAsMod($"Mod failed handling that command:\n{ex.GetLogSummary()}", LogLevel.Error);
-                        else
-                            this.Monitor.Log($"Failed handling that command:\n{ex.GetLogSummary()}", LogLevel.Error);
-                    }
-                }
-
-                /*********
                 ** Update context
                 *********/
                 bool wasWorldReady = Context.IsWorldReady;
                 if ((Context.IsWorldReady && !Context.IsSaveLoaded) || Game1.exitToTitle)
                 {
                     Context.IsWorldReady = false;
-                    this.AfterLoadTimer.Reset();
+                    instance.AfterLoadTimer.Reset();
                 }
-                else if (Context.IsSaveLoaded && this.AfterLoadTimer.Current > 0 && Game1.currentLocation != null)
+                else if (Context.IsSaveLoaded && instance.AfterLoadTimer.Current > 0 && Game1.currentLocation != null)
                 {
                     if (Game1.dayOfMonth != 0) // wait until new-game intro finishes (world not fully initialized yet)
-                        this.AfterLoadTimer.Decrement();
-                    Context.IsWorldReady = this.AfterLoadTimer.Current == 0;
+                        instance.AfterLoadTimer.Decrement();
+                    Context.IsWorldReady = instance.AfterLoadTimer.Current == 0;
                 }
 
                 /*********
                 ** Update watchers
                 **   (Watchers need to be updated, checked, and reset in one go so we can detect any changes mods make in event handlers.)
                 *********/
-                this.Watchers.Update();
-                this.WatcherSnapshot.Update(this.Watchers);
-                this.Watchers.Reset();
-                WatcherSnapshot state = this.WatcherSnapshot;
-
-                /*********
-                ** Display in-game warnings
-                *********/
-                // save content removed
-                if (this.IsSaveContentRemoved && Context.IsWorldReady)
-                {
-                    this.IsSaveContentRemoved = false;
-                    Game1.addHUDMessage(new HUDMessage(this.Translator.Get("warn.invalid-content-removed"), HUDMessage.error_type));
-                }
+                instance.Watchers.Update();
+                instance.WatcherSnapshot.Update(instance.Watchers);
+                instance.Watchers.Reset();
+                WatcherSnapshot state = instance.WatcherSnapshot;
 
                 /*********
                 ** Pre-update events
@@ -712,19 +722,19 @@ namespace StardewModdingAPI.Framework
                     /*********
                     ** Save created/loaded events
                     *********/
-                    if (this.IsBetweenCreateEvents)
+                    if (instance.IsBetweenCreateEvents)
                     {
                         // raise after-create
-                        this.IsBetweenCreateEvents = false;
+                        instance.IsBetweenCreateEvents = false;
                         this.Monitor.Log($"Context: after save creation, starting {Game1.currentSeason} {Game1.dayOfMonth} Y{Game1.year}.");
                         this.OnLoadStageChanged(LoadStage.CreatedSaveFile);
                         events.SaveCreated.RaiseEmpty();
                     }
 
-                    if (this.IsBetweenSaveEvents)
+                    if (instance.IsBetweenSaveEvents)
                     {
                         // raise after-save
-                        this.IsBetweenSaveEvents = false;
+                        instance.IsBetweenSaveEvents = false;
                         this.Monitor.Log($"Context: after save, starting {Game1.currentSeason} {Game1.dayOfMonth} Y{Game1.year}.");
                         events.Saved.RaiseEmpty();
                         events.DayStarted.RaiseEmpty();
@@ -785,7 +795,7 @@ namespace StardewModdingAPI.Framework
                         bool isChatInput = Game1.IsChatting || (Context.IsMultiplayer && Context.IsWorldReady && Game1.activeClickableMenu == null && Game1.currentMinigame == null && inputState.IsAnyDown(Game1.options.chatButton));
                         if (!isChatInput)
                         {
-                            ICursorPosition cursor = this.Input.CursorPosition;
+                            ICursorPosition cursor = instance.Input.CursorPosition;
 
                             // raise cursor moved event
                             if (state.Cursor.IsChanged)
@@ -950,9 +960,8 @@ namespace StardewModdingAPI.Framework
                     /*********
                     ** Game update
                     *********/
-                    // game launched
-                    bool isFirstTick = SCore.TicksElapsed == 0;
-                    if (isFirstTick)
+                    // game launched (not raised for secondary players in split-screen mode)
+                    if (instance.IsFirstTick && !Context.IsGameLaunched)
                     {
                         Context.IsGameLaunched = true;
                         events.GameLaunched.Raise(new GameLaunchedEventArgs());
@@ -974,9 +983,8 @@ namespace StardewModdingAPI.Framework
                         events.OneSecondUpdateTicking.RaiseEmpty();
                     try
                     {
-                        this.Input.ApplyOverrides(); // if mods added any new overrides since the update, process them now
-                        SCore.TicksElapsed++;
-                        runGameUpdate();
+                        instance.Input.ApplyOverrides(); // if mods added any new overrides since the update, process them now
+                        runUpdate();
                     }
                     catch (Exception ex)
                     {
@@ -1113,6 +1121,13 @@ namespace StardewModdingAPI.Framework
             return this.ContentCore.CreateGameContentManager("(generated)");
         }
 
+        /// <summary>Get the current game instance. This may not be the main player if playing in split-screen.</summary>
+        private SGame GetCurrentGameInstance()
+        {
+            return Game1.game1 as SGame
+                ?? throw new InvalidOperationException("The current game instance wasn't created by SMAPI.");
+        }
+
         /// <summary>Look for common issues with the game's XNB content, and log warnings if anything looks broken or outdated.</summary>
         /// <returns>Returns whether all integrity checks passed.</returns>
         private bool ValidateContentIntegrity()
@@ -1601,7 +1616,7 @@ namespace StardewModdingAPI.Framework
                         IModRegistry modRegistryHelper = new ModRegistryHelper(manifest.UniqueID, this.ModRegistry, proxyFactory, monitor);
                         IMultiplayerHelper multiplayerHelper = new MultiplayerHelper(manifest.UniqueID, this.Multiplayer);
 
-                        modHelper = new ModHelper(manifest.UniqueID, mod.DirectoryPath, this.Input, events, contentHelper, contentPackHelper, commandHelper, dataHelper, modRegistryHelper, reflectionHelper, multiplayerHelper, translationHelper);
+                        modHelper = new ModHelper(manifest.UniqueID, mod.DirectoryPath, () => this.GetCurrentGameInstance().Input, events, contentHelper, contentPackHelper, commandHelper, dataHelper, modRegistryHelper, reflectionHelper, multiplayerHelper, translationHelper);
                     }
 
                     // init mod
@@ -1813,5 +1828,14 @@ namespace StardewModdingAPI.Framework
             this.Monitor.LogFatal(message);
             this.CancellationToken.Cancel();
         }
+
+        /// <summary>Get the screen ID that should be logged to distinguish between players in split-screen mode, if any.</summary>
+        private int? GetScreenIdForLog()
+        {
+            if (Context.ScreenId != 0 || (Context.IsWorldReady && Context.IsSplitScreen))
+                return Context.ScreenId;
+
+            return null;
+        }
     }
 }