mirror of
https://github.com/goonstation/goonstation-2020.git
synced 2026-08-29 06:56:13 +01:00
95 lines
2.6 KiB
Plaintext
95 lines
2.6 KiB
Plaintext
obj/machinery/atmospherics/binary/passive_gate
|
|
//Tries to achieve target pressure at output (like a normal pump) except
|
|
// Uses no power but can not transfer gases from a low pressure area to a high pressure area
|
|
icon = 'icons/obj/atmospherics/passive_gate.dmi'
|
|
icon_state = "intact_off"
|
|
//
|
|
name = "Passive gate"
|
|
desc = "A one-way air valve that does not require power"
|
|
|
|
var/on = 0
|
|
var/target_pressure = ONE_ATMOSPHERE
|
|
var/datum/pump_ui/ui
|
|
|
|
initialize()
|
|
..()
|
|
ui = new/datum/pump_ui/passive_gate_ui(src)
|
|
|
|
update_icon()
|
|
if(node1&&node2)
|
|
icon_state = "intact_[on?("on"):("off")]"
|
|
else
|
|
if(node1)
|
|
icon_state = "exposed_1_off"
|
|
else if(node2)
|
|
icon_state = "exposed_2_off"
|
|
else
|
|
icon_state = "exposed_3_off"
|
|
on = 0
|
|
|
|
return
|
|
|
|
process()
|
|
..()
|
|
if(!on)
|
|
return 0
|
|
|
|
var/output_starting_pressure = air2.return_pressure()
|
|
var/input_starting_pressure = air1.return_pressure()
|
|
|
|
if(output_starting_pressure >= min(target_pressure,input_starting_pressure-10))
|
|
//No need to pump gas if target is already reached or input pressure is too low
|
|
//Need at least 10 KPa difference to overcome friction in the mechanism
|
|
return 1
|
|
|
|
//Calculate necessary moles to transfer using PV = nRT
|
|
if((air1.total_moles() > 0) && (air1.temperature>0))
|
|
var/pressure_delta = min(target_pressure - output_starting_pressure, (input_starting_pressure - output_starting_pressure)/2)
|
|
//Can not have a pressure delta that would cause output_pressure > input_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
|
|
|
|
obj/machinery/atmospherics/binary/passive_gate/attackby(obj/weapon as obj, mob/user as mob)
|
|
..()
|
|
if(istype(weapon, /obj/item/device/multitool))
|
|
ui.show_ui(user)
|
|
|
|
datum/pump_ui/passive_gate_ui
|
|
value_name = "Release Pressure"
|
|
value_units = "kPa"
|
|
min_value = 0
|
|
max_value = 1e31
|
|
incr_sm = 100
|
|
incr_lg = 1000
|
|
var/obj/machinery/atmospherics/binary/passive_gate/our_gate
|
|
|
|
datum/pump_ui/passive_gate_ui/New(obj/machinery/atmospherics/binary/passive_gate/our_gate)
|
|
..()
|
|
src.our_gate = our_gate
|
|
pump_name = our_gate.name
|
|
|
|
datum/pump_ui/passive_gate_ui/set_value(val)
|
|
our_gate.target_pressure = val
|
|
|
|
datum/pump_ui/passive_gate_ui/toggle_power()
|
|
our_gate.on = !our_gate.on
|
|
our_gate.update_icon()
|
|
|
|
datum/pump_ui/passive_gate_ui/is_on()
|
|
return our_gate.on
|
|
|
|
datum/pump_ui/passive_gate_ui/get_value()
|
|
return our_gate.target_pressure
|
|
|
|
datum/pump_ui/passive_gate_ui/get_atom()
|
|
return our_gate |