anchor.diff:  	..()
   	if(gas_type)
   		air_contents.assert_gas(gas_type)
  -		air_contents.gases[gas_type][MOLES] = (6 * ONE_ATMOSPHERE) * volume / (R_IDEAL_GAS_EQUATION * T20C)
  +		air_contents.gases[gas_type][MOLES] = ((6 * ONE_ATMOSPHERE) * volume / (R_IDEAL_GAS_EQUATION * T20C))
   
   	ion_trail = new
   	ion_trail.set_up(src)
  
positive.code: 	if(!on)
  		return
  	if((num < 0.005 || air_contents.total_moles() < num))
  		turn_off()
  		return
  
  	var/datum/gas_mixture/removed = air_contents.remove(num)
  	if(removed.total_moles() < 0.005)
  		turn_off()
  		return
  
  	var/turf/T = get_turf(user)
  	T.assume_air(removed)
  
  	return 1
  
  /obj/item/tank/jetpack/suicide_act(mob/user)
  	if (istype(user, /mob/living/carbon/human/))
  
negative.code: 	if(!on)
  		return
  	if((num < 0.005 || air_contents.total_moles() < num))
  		turn_off(user)
  		return
  	if(rand(0,250) == 0)
  		to_chat(user, "<span class='notice'>You feel your jetpack's engines cut out.</span>")
  		turn_off(user)
  		return
  
  	var/datum/gas_mixture/removed = air_contents.remove(num)
  	if(removed.total_moles() < 0.005)
  		turn_off(user)
  		return
  
  	var/turf/T = get_turf(user)
  	T.assume_air(removed)
  
  	return TRUE
  
  /obj/item/tank/jetpack/void
  	name = "void jetpack (oxygen)"
  