Pathfinding fixes:

- determining if a character is close enough to a waypoint works now, even if the character is too short for its collider to overlap with the wp (e.g. crawlers)
- enemies can drop down from platforms
- an extra waypoint is placed at the middle of stairs to prevent characters from choosing a waypoint on a platform above the stairs as the starting point of their path

Subsurface/Source/Characters/Animation/FishAnimController.cs

@@ -225,9 +225,7 @@ namespace Barotrauma
         {
             movement = MathUtils.SmoothStep(movement, TargetMovement * walkSpeed, 0.2f);
             if (movement == Vector2.Zero) return;
-
-            IgnorePlatforms = (TargetMovement.Y < -Math.Abs(TargetMovement.X));
-
+            
             float mainLimbHeight, mainLimbAngle;
             if (MainLimb.type == LimbType.Torso)
             {