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Aurora.3/code/ATMOSPHERICS/components/unary/heat_exchanger.dm

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/obj/machinery/atmospherics/unary/heat_exchanger
icon = 'icons/obj/atmospherics/heat_exchanger.dmi'
icon_state = "intact"
density = 1
name = "Heat Exchanger"
desc = "Exchanges heat between two input gases. Setup for fast heat transfer"
var/obj/machinery/atmospherics/unary/heat_exchanger/partner = null
var/update_cycle
update_icon()
if(node)
icon_state = "intact"
else
icon_state = "exposed"
return
atmos_init()
if(!partner)
var/partner_connect = turn(dir,180)
for(var/obj/machinery/atmospherics/unary/heat_exchanger/target in get_step(src,partner_connect))
if(target.dir & get_dir(src,target))
partner = target
partner.partner = src
break
..()
machinery_process()
..()
if(QDELETED(partner))
return 0
if(!SSair || SSair.times_fired <= update_cycle)
return 0
update_cycle = SSair.times_fired
partner.update_cycle = SSair.times_fired
var/air_heat_capacity = air_contents.heat_capacity()
var/other_air_heat_capacity = partner.air_contents.heat_capacity()
var/combined_heat_capacity = other_air_heat_capacity + air_heat_capacity
var/old_temperature = air_contents.temperature
var/other_old_temperature = partner.air_contents.temperature
if(combined_heat_capacity > 0)
var/combined_energy = partner.air_contents.temperature*other_air_heat_capacity + air_heat_capacity*air_contents.temperature
var/new_temperature = combined_energy/combined_heat_capacity
air_contents.temperature = new_temperature
partner.air_contents.temperature = new_temperature
if(network)
if(abs(old_temperature-air_contents.temperature) > 1)
network.update = 1
if(partner.network)
if(abs(other_old_temperature-partner.air_contents.temperature) > 1)
partner.network.update = 1
return 1
attackby(var/obj/item/W as obj, var/mob/user as mob)
if (!W.iswrench())
return ..()
var/turf/T = src.loc
if (level==1 && isturf(T) && !T.is_plating())
to_chat(user, "<span class='warning'>You must remove the plating first.</span>")
return 1
var/datum/gas_mixture/int_air = return_air()
var/datum/gas_mixture/env_air = loc.return_air()
if ((int_air.return_pressure()-env_air.return_pressure()) > 2*ONE_ATMOSPHERE)
to_chat(user, "<span class='warning'>You cannot unwrench \the [src], it is too exerted due to internal pressure.</span>")
add_fingerprint(user)
return 1
playsound(src.loc, W.usesound, 50, 1)
to_chat(user, "<span class='notice'>You begin to unfasten \the [src]...</span>")
if (do_after(user, 40/W.toolspeed, act_target = src))
user.visible_message( \
"<span class='notice'>\The [user] unfastens \the [src].</span>", \
"<span class='notice'>You have unfastened \the [src].</span>", \
"You hear a ratchet.")
new /obj/item/pipe(loc, make_from=src)
qdel(src)