/obj/machinery/atmospherics/trinary/mixer
icon = 'icons/atmos/mixer.dmi'
icon_state = "map"
can_unwrench = 1
name = "gas mixer"
var/target_pressure = ONE_ATMOSPHERE
var/node1_concentration = 0.5
var/node2_concentration = 0.5
//node 3 is the outlet, nodes 1 & 2 are intakes
/obj/machinery/atmospherics/trinary/mixer/CtrlClick(mob/living/user)
if(!istype(user) || user.incapacitated())
to_chat(user, "You can't do that right now!")
return
if(!in_range(src, user) && !issilicon(usr))
return
if(!ishuman(usr) && !issilicon(usr))
return
toggle()
return ..()
/obj/machinery/atmospherics/trinary/mixer/AICtrlClick()
toggle()
return ..()
/obj/machinery/atmospherics/trinary/mixer/AltClick(mob/living/user)
if(!istype(user) || user.incapacitated())
to_chat(user, "You can't do that right now!")
return
if(!in_range(src, user) && !issilicon(usr))
return
if(!ishuman(usr) && !issilicon(usr))
return
set_max()
return
/obj/machinery/atmospherics/trinary/mixer/AIAltClick()
set_max()
return ..()
/obj/machinery/atmospherics/trinary/mixer/flipped
icon_state = "mmap"
flipped = 1
/obj/machinery/atmospherics/trinary/mixer/proc/toggle()
if(powered())
on = !on
update_icon()
/obj/machinery/atmospherics/trinary/mixer/proc/set_max()
if(powered())
target_pressure = MAX_OUTPUT_PRESSURE
update_icon()
/obj/machinery/atmospherics/trinary/mixer/update_icon(safety = 0)
..()
if(flipped)
icon_state = "m"
else
icon_state = ""
if(!powered())
icon_state += "off"
else if(node2 && node3 && node1)
icon_state += on ? "on" : "off"
else
icon_state += "off"
on = 0
/obj/machinery/atmospherics/trinary/mixer/update_underlays()
if(..())
underlays.Cut()
var/turf/T = get_turf(src)
if(!istype(T))
return
add_underlay(T, node1, turn(dir, -180))
if(flipped)
add_underlay(T, node2, turn(dir, 90))
else
add_underlay(T, node2, turn(dir, -90))
add_underlay(T, node3, dir)
/obj/machinery/atmospherics/trinary/mixer/power_change()
var/old_stat = stat
..()
if(old_stat != stat)
update_icon()
/obj/machinery/atmospherics/trinary/mixer/New()
..()
air3.volume = 300
/obj/machinery/atmospherics/trinary/mixer/process_atmos()
..()
if(!on)
return 0
var/output_starting_pressure = air3.return_pressure()
if(output_starting_pressure >= target_pressure)
//No need to mix if target is already full!
return 1
//Calculate necessary moles to transfer using PV=nRT
var/pressure_delta = target_pressure - output_starting_pressure
var/transfer_moles1 = 0
var/transfer_moles2 = 0
if(air1.temperature > 0)
transfer_moles1 = (node1_concentration*pressure_delta)*air3.volume/(air1.temperature * R_IDEAL_GAS_EQUATION)
if(air2.temperature > 0)
transfer_moles2 = (node2_concentration*pressure_delta)*air3.volume/(air2.temperature * R_IDEAL_GAS_EQUATION)
var/air1_moles = air1.total_moles()
var/air2_moles = air2.total_moles()
if((air1_moles < transfer_moles1) || (air2_moles < transfer_moles2))
if(!transfer_moles1 || !transfer_moles2) return
var/ratio = min(air1_moles/transfer_moles1, air2_moles/transfer_moles2)
transfer_moles1 *= ratio
transfer_moles2 *= ratio
//Actually transfer the gas
if(transfer_moles1 > 0)
var/datum/gas_mixture/removed1 = air1.remove(transfer_moles1)
air3.merge(removed1)
if(transfer_moles2 > 0)
var/datum/gas_mixture/removed2 = air2.remove(transfer_moles2)
air3.merge(removed2)
if(transfer_moles1)
parent1.update = 1
if(transfer_moles2)
parent2.update = 1
parent3.update = 1
return 1
/obj/machinery/atmospherics/trinary/mixer/attack_ghost(mob/user)
ui_interact(user)
/obj/machinery/atmospherics/trinary/mixer/attack_hand(mob/user)
if(..())
return
if(!allowed(user))
to_chat(user, "Access denied.")
return
add_fingerprint(user)
ui_interact(user)
/obj/machinery/atmospherics/trinary/mixer/ui_interact(mob/user, ui_key = "main", datum/nanoui/ui = null, force_open = 1, var/master_ui = null, var/datum/topic_state/state = GLOB.default_state)
user.set_machine(src)
ui = SSnanoui.try_update_ui(user, src, ui_key, ui, force_open)
if(!ui)
ui = new(user, src, ui_key, "atmos_mixer.tmpl", name, 370, 165, state = state)
ui.open()
/obj/machinery/atmospherics/trinary/mixer/ui_data(mob/user)
var/list/data = list()
data["on"] = on
data["pressure"] = round(target_pressure)
data["max_pressure"] = round(MAX_OUTPUT_PRESSURE)
data["node1_concentration"] = round(node1_concentration*100)
data["node2_concentration"] = round(node2_concentration*100)
return data
/obj/machinery/atmospherics/trinary/mixer/Topic(href,href_list)
if(..())
return 1
if(href_list["power"])
on = !on
investigate_log("was turned [on ? "on" : "off"] by [key_name(usr)]", "atmos")
. = TRUE
if(href_list["pressure"])
var/pressure = href_list["pressure"]
if(pressure == "max")
pressure = MAX_OUTPUT_PRESSURE
. = TRUE
else if(pressure == "input")
pressure = input("New output pressure (0-[MAX_OUTPUT_PRESSURE] kPa):", name, target_pressure) as num|null
if(!isnull(pressure) && !..())
. = TRUE
else if(text2num(pressure) != null)
pressure = text2num(pressure)
. = TRUE
if(.)
target_pressure = clamp(pressure, 0, MAX_OUTPUT_PRESSURE)
investigate_log("was set to [target_pressure] kPa by [key_name(usr)]", "atmos")
if(href_list["node1"])
var/value = text2num(href_list["node1"])
node1_concentration = max(0, min(1, node1_concentration + value))
node2_concentration = max(0, min(1, node2_concentration - value))
investigate_log("was set to [node1_concentration] % on node 1 by [key_name(usr)]", "atmos")
. = TRUE
if(href_list["node2"])
var/value = text2num(href_list["node2"])
node2_concentration = max(0, min(1, node2_concentration + value))
node1_concentration = max(0, min(1, node1_concentration - value))
investigate_log("was set to [node2_concentration] % on node 2 by [key_name(usr)]", "atmos")
. = TRUE
update_icon()
SSnanoui.update_uis(src)
/obj/machinery/atmospherics/trinary/mixer/attackby(obj/item/W, mob/user, params)
if(istype(W, /obj/item/pen))
var/t = copytext(stripped_input(user, "Enter the name for the mixer.", "Rename", name), 1, MAX_NAME_LEN)
if(!t)
return
if(!in_range(src, usr) && loc != usr)
return
name = t
return
else
return ..()