Moved SaveGameStatus to seperate file, guarded against null callbacks and added documentation

Torch.API/ITorchBase.cs

@@ -25,6 +25,10 @@ namespace Torch.API
         bool IsOnGameThread();
         void Start();
         void Stop();
+        /// <summary>
+        /// Initializes a save of the game.
+        /// </summary>
+        /// <param name="callerId">Id of the player who initiated the save.</param>
         void Save(long callerId);
         void Init();
         T GetManager<T>() where T : class, IManager;

Torch.Server/TorchServer.cs

@@ -222,11 +222,17 @@ namespace Torch.Server
             State = ServerState.Stopped;
         }
 
+        /// <inheritdoc/>
         public override void Save(long callerId)
         {
             base.SaveGameAsync((statusCode) => SaveCompleted(statusCode, callerId));
         }
 
+        /// <summary>
+        /// Callback for when save has finished.
+        /// </summary>
+        /// <param name="statusCode">Return code of the save operation</param>
+        /// <param name="callerId">Caller of the save operation</param>
         private void SaveCompleted(SaveGameStatus statusCode, long callerId)
         {
             switch (statusCode)

Torch/Commands/TorchCommands.cs

@@ -68,6 +68,10 @@ namespace Torch.Commands
             Context.Torch.Stop();
         }
         
+        /// <summary>
+        /// Initializes a save of the game.
+        /// Caller id defaults to 0 in the case of triggering the chat command from server.
+        /// </summary>
         [Command("save", "Saves the game.")]
         public void Save()
         {

Torch/SaveGameStatus.cs

@@ -0,0 +1,13 @@
+namespace Torch
+{
+    /// <summary>
+    /// Describes the possible outcomes when attempting to save the game progress.
+    /// </summary>
+    public enum SaveGameStatus : byte
+    {
+        Success = 0,
+        SaveInProgress = 1,
+        GameNotReady = 2,
+        TimedOut = 3
+    };
+}

Torch/Torch.csproj

@@ -144,6 +144,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="ChatMessage.cs" />
+    <Compile Include="SaveGameStatus.cs" />
     <Compile Include="Collections\KeyTree.cs" />
     <Compile Include="Collections\ObservableDictionary.cs" />
     <Compile Include="Collections\RollingAverage.cs" />

Torch/TorchBase.cs

@@ -31,14 +31,6 @@ using VRage.Utils;
 
 namespace Torch
 {
-    public enum SaveGameStatus : byte
-    {
-        Success = 0,
-        SaveInProgress = 1,
-        GameNotReady = 2,
-        TimedOut = 3
-    };
-
     /// <summary>
     /// Base class for code shared between the Torch client and server.
     /// </summary>
@@ -123,11 +115,11 @@ namespace Torch
 
             if (!MySandboxGame.IsGameReady)
             {
-                callback(SaveGameStatus.GameNotReady);
+                callback?.Invoke(SaveGameStatus.GameNotReady);
             }
             else if(MyAsyncSaving.InProgress)
             {
-                callback(SaveGameStatus.SaveInProgress);
+                callback?.Invoke(SaveGameStatus.SaveInProgress);
             }
             else
             {
@@ -142,10 +134,12 @@ namespace Torch
                     await Task.Run(() =>
                     {
                         if (e.WaitOne(60000))
-                            callback(SaveGameStatus.Success);
+                        {
-                        return;
+                            callback?.Invoke(SaveGameStatus.Success);
+                            return;
+                        }
                         
-                        callback(SaveGameStatus.TimedOut);
+                        callback?.Invoke(SaveGameStatus.TimedOut);
                     }).ConfigureAwait(false);
                 }
             }
@@ -292,6 +286,7 @@ namespace Torch
             pluginList.Add(this);
         }
 
+        /// <inheritdoc/>
         public virtual void Save(long callerId)
         {