(bdf4ed547) Store the last safe hull and use it if cannot find a new.

Barotrauma/BarotraumaShared/Source/Characters/AI/Objectives/AIObjectiveFindSafety.cs

@@ -68,6 +68,8 @@ namespace Barotrauma
             }
         }
 
+        private Hull currentSafeHull;
+        private Hull previousSafeHull;
         protected override void Act(float deltaTime)
         {
             var currentHull = character.AnimController.CurrentHull;
@@ -107,15 +109,20 @@ namespace Barotrauma
                 else
                 {
                     searchHullTimer = SearchHullInterval;
-                    var bestHull = FindBestHull();
-                    if (bestHull != null && bestHull != currentHull)
+                    previousSafeHull = currentSafeHull;
+                    currentSafeHull = FindBestHull();
+                    if (currentSafeHull == null)
                     {
-                        if (goToObjective?.Target != bestHull)
+                        currentSafeHull = previousSafeHull;
+                    }
+                    if (currentSafeHull != null && currentSafeHull != currentHull)
+                    {
+                        if (goToObjective?.Target != currentSafeHull)
                         {
                             goToObjective = null;
                         }
                         TryAddSubObjective(ref goToObjective, 
-                            constructor: () => new AIObjectiveGoTo(bestHull, character, objectiveManager, getDivingGearIfNeeded: false)
+                            constructor: () => new AIObjectiveGoTo(currentSafeHull, character, objectiveManager, getDivingGearIfNeeded: false)
                             {
                                 // If we need diving gear, we should already have it, if possible.
                                 AllowGoingOutside = HumanAIController.HasDivingSuit(character)
@@ -179,11 +186,11 @@ namespace Barotrauma
             {
                 if (hull.Submarine == null) { continue; }
                 if (ignoredHulls != null && ignoredHulls.Contains(hull)) { continue; }
+                if (unreachable.Contains(hull)) { continue; }
                 float hullSafety = 0;
-                if (character.Submarine != null && SteeringManager == PathSteering)
+                if (character.CurrentHull != null)
                 {
-                    // Inside or outside near the sub
-                    if (unreachable.Contains(hull)) { continue; }
+                    // Inside
                     if (!character.Submarine.IsConnectedTo(hull.Submarine)) { continue; }
                     hullSafety = HumanAIController.GetHullSafety(hull, character);
                     // Vertical distance matters more than horizontal (climbing up/down is harder than moving horizontally)
@@ -212,7 +219,7 @@ namespace Barotrauma
                 else
                 {
                     // Outside
-                    if (hull.RoomName?.ToLowerInvariant() == "airlock")
+                    if (hull.RoomName != null && hull.RoomName.ToLowerInvariant().Contains("airlock"))
                     {
                         hullSafety = 100;
                     }
@@ -221,7 +228,7 @@ namespace Barotrauma
                         // TODO: could also target gaps that get us inside?
                         foreach (Item item in Item.ItemList)
                         {
-                            if (item.CurrentHull == hull && item.HasTag("airlock"))
+                            if (item.CurrentHull != hull && item.HasTag("airlock"))
                             {
                                 hullSafety = 100;
                                 break;