(cf495e03c) Check the visibility to the target when engaging (the distance is not enough, if there's something blocking the line of sight).

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

@@ -260,7 +260,8 @@ namespace Barotrauma
                 followTargetObjective = new AIObjectiveGoTo(Enemy, character, objectiveManager, repeat: true, getDivingGearIfNeeded: true, priorityModifier: PriorityModifier)
                 {
                     AllowGoingOutside = true,
-                    IgnoreIfTargetDead = true
+                    IgnoreIfTargetDead = true,
+                    CheckVisibility = true
                 };
             }
             if (WeaponComponent is RangedWeapon)

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

@@ -20,11 +20,12 @@ namespace Barotrauma
 
         private bool getDivingGearIfNeeded;
 
-        public float CloseEnough = 0.5f;
+        public float CloseEnough { get; set; } = 0.5f;
 
-        public bool IgnoreIfTargetDead;
+        public bool IgnoreIfTargetDead { get; set; }
 
-        public bool AllowGoingOutside = false;
+        public bool AllowGoingOutside { get; set; }
+        public bool CheckVisibility { get; set; }
 
         public override float GetPriority()
         {
@@ -147,7 +148,12 @@ namespace Barotrauma
                 }
             }
 
-            if (Vector2.DistanceSquared(currTargetPos, character.SimPosition) < CloseEnough * CloseEnough)
+            bool sightCheck = true;
+            if (CheckVisibility && Target != null)
+            {
+                sightCheck = Target is Character ch ? character.CanSeeCharacter(ch) : character.CanSeeTarget(Target);
+            }
+            if (sightCheck && Vector2.DistanceSquared(currTargetPos, character.SimPosition) < CloseEnough * CloseEnough)
             {
                 character.AIController.SteeringManager.Reset();
                 character.AnimController.TargetDir = currTargetPos.X > character.SimPosition.X ? Direction.Right : Direction.Left;

Barotrauma/BarotraumaShared/Source/Characters/Animation/FishAnimController.cs

@@ -733,10 +733,6 @@ namespace Barotrauma
 
                 limb.body.ApplyForce(diff * (float)(Math.Sin(WalkPos) * Math.Sqrt(limb.Mass)) * 30.0f * animStrength, maxVelocity: 10.0f);
             }
-            while (referenceLimb.Rotation - angle < -MathHelper.TwoPi)
-            {
-                angle -= MathHelper.TwoPi;
-            }
 
             limb?.body.SmoothRotate(angle, torque, wrapAngle: false);
         }