(78fa52fb7) Add a bunch of null checks, which should fix the issues with shuttles.

Barotrauma/BarotraumaShared/Source/Map/Hull.cs

@@ -250,6 +250,25 @@ namespace Barotrauma
             }
         }
 
+        public string DisplayName
+        {
+            get;
+            private set;
+        }
+
+        private string roomName;
+        [Editable, Serialize("", true, translationTextTag: "RoomName.")]
+        public string RoomName
+        {
+            get { return roomName; }
+            set
+            {
+                if (roomName == value) { return; }
+                roomName = value;
+                DisplayName = TextManager.Get(roomName, returnNull: true) ?? roomName;
+            }
+        }
+
         public override Rectangle Rect
         {
             get

Barotrauma/BarotraumaShared/Source/Map/Submarine.cs

@@ -1077,6 +1077,7 @@ namespace Barotrauma
 
         public bool IsEntityFoundOnThisSub(MapEntity entity, bool includingConnectedSubs)
         {
+            if (entity == null) { return false; }
             if (entity.Submarine == this) { return true; }
             if (entity.Submarine == null) { return false; }
             if (includingConnectedSubs)