/*
Every cycle, the pump uses the air in air_in to try and make air_out the perfect pressure.
node1, air1, network1 correspond to input
node2, air2, network2 correspond to output
Thus, the two variables affect pump operation are set in New():
air1.volume
This is the volume of gas available to the pump that may be transfered to the output
air2.volume
Higher quantities of this cause more air to be perfected later
but overall network volume is also increased as this increases...
*/
/obj/machinery/atmospherics/binary/pump
icon = 'icons/atmos/pump.dmi'
icon_state = "map_off"
level = 1
name = "Gas pump"
desc = "A pump"
var/on = 0
var/target_pressure = ONE_ATMOSPHERE
var/frequency = 0
var/id = null
var/datum/radio_frequency/radio_connection
/obj/machinery/atmospherics/binary/pump/highcap
name = "High capacity gas pump"
desc = "A high capacity pump"
target_pressure = 15000000
/obj/machinery/atmospherics/binary/pump/on
icon_state = "map_on"
on = 1
/obj/machinery/atmospherics/binary/pump/update_icon()
if(!powered())
icon_state = "off"
else
icon_state = "[on ? "on" : "off"]"
/obj/machinery/atmospherics/binary/pump/update_underlays()
if(..())
underlays.Cut()
var/turf/T = get_turf(src)
if(!istype(T))
return
add_underlay(T, node1, turn(dir, -180))
add_underlay(T, node2, dir)
/obj/machinery/atmospherics/binary/pump/hide(var/i)
update_underlays()
/obj/machinery/atmospherics/binary/pump/process()
// ..()
if(stat & (NOPOWER|BROKEN))
return
if(!on)
return 0
var/output_starting_pressure = air2.return_pressure()
if( (target_pressure - output_starting_pressure) < 0.01)
//No need to pump gas if target is already reached!
return 1
//Calculate necessary moles to transfer using PV=nRT
if((air1.total_moles() > 0) && (air1.temperature>0))
var/pressure_delta = target_pressure - output_starting_pressure
var/transfer_moles = pressure_delta*air2.volume/(air1.temperature * R_IDEAL_GAS_EQUATION)
//Actually transfer the gas
var/datum/gas_mixture/removed = air1.remove(transfer_moles)
air2.merge(removed)
if(network1)
network1.update = 1
if(network2)
network2.update = 1
return 1
//Radio remote control
/obj/machinery/atmospherics/binary/pump/proc/set_frequency(new_frequency)
radio_controller.remove_object(src, frequency)
frequency = new_frequency
if(frequency)
radio_connection = radio_controller.add_object(src, frequency, filter = RADIO_ATMOSIA)
/obj/machinery/atmospherics/binary/pump/proc/broadcast_status()
if(!radio_connection)
return 0
var/datum/signal/signal = new
signal.transmission_method = 1 //radio signal
signal.source = src
signal.data = list(
"tag" = id,
"device" = "AGP",
"power" = on,
"target_output" = target_pressure,
"sigtype" = "status"
)
radio_connection.post_signal(src, signal, filter = RADIO_ATMOSIA)
return 1
/obj/machinery/atmospherics/binary/pump/interact(mob/user as mob)
var/dat = {"Power: [on?"On":"Off"]
Desirable output pressure:
[round(target_pressure,0.1)]kPa | Change
"}
user << browse("[src.name] control[dat]", "window=atmo_pump")
onclose(user, "atmo_pump")
/obj/machinery/atmospherics/binary/pump/initialize()
..()
if(frequency)
set_frequency(frequency)
/obj/machinery/atmospherics/binary/pump/receive_signal(datum/signal/signal)
if(!signal.data["tag"] || (signal.data["tag"] != id) || (signal.data["sigtype"]!="command"))
return 0
if(signal.data["power"])
on = text2num(signal.data["power"])
if(signal.data["power_toggle"])
on = !on
if(signal.data["set_output_pressure"])
target_pressure = between(
0,
text2num(signal.data["set_output_pressure"]),
ONE_ATMOSPHERE*50
)
if(signal.data["status"])
spawn(2)
broadcast_status()
return //do not update_icon
spawn(2)
broadcast_status()
update_icon()
return
/obj/machinery/atmospherics/binary/pump/attack_hand(user as mob)
if(..())
return
src.add_fingerprint(usr)
if(!src.allowed(user))
user << "\red Access denied."
return
usr.set_machine(src)
interact(user)
return
/obj/machinery/atmospherics/binary/pump/Topic(href,href_list)
if(..()) return
if(href_list["power"])
on = !on
if(href_list["set_press"])
var/new_pressure = input(usr,"Enter new output pressure (0-4500kPa)","Pressure control",src.target_pressure) as num
src.target_pressure = max(0, min(4500, new_pressure))
usr.set_machine(src)
src.update_icon()
src.updateUsrDialog()
return
/obj/machinery/atmospherics/binary/pump/power_change()
var/old_stat = stat
..()
if(old_stat != stat)
update_icon()
/obj/machinery/atmospherics/binary/pump/attackby(var/obj/item/weapon/W as obj, var/mob/user as mob)
if (!istype(W, /obj/item/weapon/wrench))
return ..()
if (!(stat & NOPOWER) && on)
user << "\red You cannot unwrench this [src], turn it off first."
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)
user << "\red You cannot unwrench this [src], it too exerted due to internal pressure."
add_fingerprint(user)
return 1
playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
user << "\blue You begin to unfasten \the [src]..."
if (do_after(user, 40))
user.visible_message( \
"[user] unfastens \the [src].", \
"\blue You have unfastened \the [src].", \
"You hear ratchet.")
new /obj/item/pipe(loc, make_from=src)
del(src)