anchor.diff:  
   		air.merge(giver)
   
  -		if(air.check_tile_graphic())
  -			update_visuals(air)
  +		update_visuals(air)
   
   		return 1
   
  
positive.code: 			overlays.Add(SSair.plasma_overlay)
  		if("sleeping_agent")
  			overlays.Add(SSair.sleeptoxin_overlay)
  
  /turf/simulated/proc/share_air(var/turf/simulated/T)
  	if(T.current_cycle < current_cycle)
  
negative.code: 
  	air.react()
  
  	update_visuals(air)
  
  	if(air.temperature > FIRE_MINIMUM_TEMPERATURE_TO_EXIST)
  		hotspot_expose(air.temperature, CELL_VOLUME)
  