Fixed invalid left/right normal errors during level generation (I think). The voronoi cell generation logic ignored zero-length edges, but it was possible for an edge to be so short that the distance from the adjacent edge to the center of the short edge rounded down to zero in GenerateWallShapes.

Barotrauma/BarotraumaShared/Source/Map/Levels/CaveGenerator.cs

@@ -183,7 +183,7 @@ namespace Barotrauma
 
             foreach (GraphEdge ge in graphEdges)
             {
-                if (ge.point1 == ge.point2) continue;
+                if (Vector2.DistanceSquared(ge.point1, ge.point2) < 0.001f) continue;
 
                 for (int i = 0; i < 2; i++)
                 {

Barotrauma/BarotraumaShared/Source/Map/Levels/VoronoiElements.cs

@@ -211,16 +211,16 @@ namespace Voronoi2
 
         public VoronoiCell AdjacentCell(VoronoiCell cell)
         {
-            if (cell1==cell)
+            if (cell1 == cell)
             {
                 return cell2;
             }
-            else if (cell2==cell)
+            else if (cell2 == cell)
             {
                 return cell1;
             }
 
-            return null;            
+            return null;
         }
 
         /// <summary>
@@ -239,6 +239,11 @@ namespace Voronoi2
 
             return normal;
         }
+
+        public override string ToString()
+        {
+            return "GraphEdge (" + point1.ToString() + ", " + point2.ToString() + ")";
+        }
     }
     
     // للترتيب