anchor.diff:                  id = new Point<int>(x,y);
   
                   if (!sessions.containsKey(id)) {
  -                    sessions[id] = await this.createSession(SeedMapper.coords2seed(rx,ry), x, y);
  +                    sessions[id] = this.createSession(SeedMapper.coords2seed(rx,ry), x, y);
                   }
               }
           }
  
positive.code:             ..render(this.renderScene, this.renderCamera);
      }
  
      Future<Null> updateSessions() async {
          double leftedge   = this.camx - this.canvasWidth  / 2;
          double rightedge  = this.camx + this.canvasWidth  / 2;
          double topedge    = this.camy - this.canvasHeight / 2;
  
negative.code:         session.randomizeEntryOrder();
          session.makeGuardians();
  
          checkEasterEgg(session);
          this.easterEggCallback(session);
  
          sessionCache[seed] = session;
  