anchor.diff:  
   
   			if(x == 0 || x==x_size-1 || y==0 || y==y_size-1)
  -				if(wall == /obj/structure/alien/resin)
  +				if(wall == /obj/structure/alien/resin/wall)
   					T = new floor(cur_loc)
  -					new /obj/structure/alien/resin(T)
  +					new /obj/structure/alien/resin/wall(T)
   				else
   					T = new wall(cur_loc)
   					room_turfs["walls"] += T
  
positive.code: 		if("Regular wall")
  			wall=/turf/simulated/wall
  		if("Resin wall")
  			wall=/obj/structure/alien/resin
  	switch(alert("Floor type",null,"Regular floor","Reinforced floor"))
  		if("Regular floor")
  			floor=/turf/simulated/floor
  
negative.code: 
  	//world << "Room spawned at [start_loc.x],[start_loc.y],[start_loc.z]"
  	if(!wall)
  		wall = pick(/turf/simulated/wall/r_wall,/turf/simulated/wall,/obj/structure/alien/resin/wall)
  	if(!floor)
  		floor = pick(/turf/simulated/floor,/turf/simulated/floor/engine)
  
  