Random events no longer start while in lobby and round ending forces current event to end (#1782)

* Random events cannot run in lobby and round ending forces events to end.

* Thanks p4merge

* Get rid of unused

* Apply suggestions from code review

Co-authored-by: Víctor Aguilera Puerto <6766154+Zumorica@users.noreply.github.com>

Content.Server/GameObjects/EntitySystems/StationEvents/StationEventSystem.cs

@@ -1,4 +1,8 @@
-using Content.Server.StationEvents;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Content.Server.StationEvents;
+using Content.Server.Interfaces.GameTicking;
 using JetBrains.Annotations;
 using Robust.Server.Console;
 using Robust.Server.Interfaces.Player;
@@ -9,25 +13,23 @@ using Robust.Shared.Interfaces.Reflection;
 using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.IoC;
 using Robust.Shared.Localization;
-using System;
-using System.Collections.Generic;
-using System.Text;
 using static Content.Shared.StationEvents.SharedStationEvent;
 
 namespace Content.Server.GameObjects.EntitySystems.StationEvents
 {
     [UsedImplicitly]
+    // Somewhat based off of TG's implementation of events
     public sealed class StationEventSystem : EntitySystem
     {
 #pragma warning disable 649
         [Dependency] private readonly IServerNetManager _netManager;
         [Dependency] private readonly IPlayerManager _playerManager;
+        [Dependency] private readonly IGameTicker _gameTicker;
 #pragma warning restore 649
-        // Somewhat based off of TG's implementation of events
 
         public StationEvent CurrentEvent { get; private set; }
-
         public IReadOnlyCollection<StationEvent> StationEvents => _stationEvents;
+
         private List<StationEvent> _stationEvents = new List<StationEvent>();
 
         private const float MinimumTimeUntilFirstEvent = 600;
@@ -194,7 +196,18 @@ namespace Content.Server.GameObjects.EntitySystems.StationEvents
             {
                 return;
             }
-            
+
+            // Stop events from happening in lobby and force active event to end if the round ends
+            if (_gameTicker.RunLevel != GameTicking.GameRunLevel.InRound)
+            {
+                if (CurrentEvent != null)
+                {
+                    Enabled = false;
+                }
+
+                return;
+            }
+
             // Keep running the current event
             if (CurrentEvent != null)
             {

Content.Server/StationEvents/StationEventCommand.cs

@@ -1,5 +1,4 @@
 #nullable enable
-using Content.Server.GameObjects.EntitySystems;
 using Content.Server.GameObjects.EntitySystems.StationEvents;
 using JetBrains.Annotations;
 using Robust.Server.Interfaces.Console;