Tons of AI + pathfinding bugfixes:

- waypoints are created between docked subs and removed when they undock
- fixed start waypoint being left out of steering paths
- NPCs won't close doors/hatches on themselves
- NPCs won't let go of ladders until their feet are above the lower edge of the hull
- fixed FindDivingGear "loops": need to find a suit -> need to get to a suit -> need a suit to get to the suit -> need to find a suit...
- fixed characters constantly turning from side to side in small rooms
- recursive function for finding the button which opens a door (so a button doesn't have to be connected straight to a door for an NPC to be able to open it)
- AIObjectiveGetItem keeps searching for more suitable items even if a path to a matching item has been found

Subsurface/Source/Characters/AI/Objectives/AIObjectiveGoTo.cs

@@ -16,6 +16,8 @@ namespace Barotrauma
         //how long until the path to the target is declared unreachable
         private float waitUntilPathUnreachable;
 
+        private bool getDivingGearIfNeeded;
+
         public override bool CanBeCompleted
         {
             get
@@ -35,23 +37,25 @@ namespace Barotrauma
             get { return target; }
         }
 
-        public AIObjectiveGoTo(Entity target, Character character, bool repeat = false)
+        public AIObjectiveGoTo(Entity target, Character character, bool repeat = false, bool getDivingGearIfNeeded = true)
             : base (character, "")
         {
             this.target = target;
             this.repeat = repeat;
 
             waitUntilPathUnreachable = 5.0f;
+            this.getDivingGearIfNeeded = getDivingGearIfNeeded;
         }
 
 
-        public AIObjectiveGoTo(Vector2 simPos, Character character, bool repeat = false)
+        public AIObjectiveGoTo(Vector2 simPos, Character character, bool repeat = false, bool getDivingGearIfNeeded = true)
             : base(character, "")
         {
             this.targetPos = simPos;
             this.repeat = repeat;
 
             waitUntilPathUnreachable = 5.0f;
+            this.getDivingGearIfNeeded = getDivingGearIfNeeded;
         }
 
         protected override void Act(float deltaTime)
@@ -108,7 +112,7 @@ namespace Barotrauma
                 {
                     indoorsSteering.SteeringWander();
                 }
-                else if (indoorsSteering.CurrentPath != null && indoorsSteering.HasOutdoorsNodes)
+                else if (getDivingGearIfNeeded && indoorsSteering.CurrentPath != null && indoorsSteering.HasOutdoorsNodes)
                 {
                     AddSubObjective(new AIObjectiveFindDivingGear(character, true));
                 }