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79 lines
2.5 KiB
Plaintext
79 lines
2.5 KiB
Plaintext
//node1, air1, network1 correspond to input
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//node2, air2, network2 correspond to output
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/obj/machinery/atmospherics/binary/circulator
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name = "circulator/heat exchanger"
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desc = "A gas circulator pump and heat exchanger."
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icon = 'icons/obj/pipes.dmi'
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icon_state = "circ-off"
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anchored = 0
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density = 1
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var/recent_moles_transferred = 0
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var/last_heat_capacity = 0
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var/last_temperature = 0
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var/last_pressure_delta = 0
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var/last_worldtime_transfer = 0
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/obj/machinery/atmospherics/binary/circulator/New()
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..()
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desc = initial(desc) + " Its outlet port is to the [dir2text(dir)]."
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/obj/machinery/atmospherics/binary/circulator/proc/return_transfer_air()
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var/datum/gas_mixture/removed
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if(anchored && !(stat & BROKEN))
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var/input_starting_pressure = air1.return_pressure()
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var/output_starting_pressure = air2.return_pressure()
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last_pressure_delta = max(input_starting_pressure - output_starting_pressure + 10, 0)
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//only circulate air if there is a pressure difference (plus 10 kPa to represent friction in the machine)
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if(air1.temperature > 0 && last_pressure_delta > 0)
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//Calculate necessary moles to transfer using PV = nRT
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recent_moles_transferred = last_pressure_delta*air2.volume/(air1.temperature * R_IDEAL_GAS_EQUATION)
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//Actually transfer the gas
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removed = air1.remove(recent_moles_transferred)
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if(removed)
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last_heat_capacity = removed.heat_capacity()
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last_temperature = removed.temperature
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//Update the gas networks.
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parent1.update = 1
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last_worldtime_transfer = world.time
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else
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recent_moles_transferred = 0
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update_icon()
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return removed
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/obj/machinery/atmospherics/binary/circulator/process()
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if(!..())
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return 0
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if(last_worldtime_transfer < world.time - 50)
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recent_moles_transferred = 0
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update_icon()
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/obj/machinery/atmospherics/binary/circulator/update_icon()
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if(stat & (BROKEN|NOPOWER) || !anchored)
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icon_state = "circ-p"
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else if(last_pressure_delta > 0 && recent_moles_transferred > 0)
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if(last_pressure_delta > 5*ONE_ATMOSPHERE)
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icon_state = "circ-run"
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else
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icon_state = "circ-slow"
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else
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icon_state = "circ-off"
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return 1
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/obj/machinery/atmospherics/binary/circulator/attackby(var/obj/item/W as obj, var/mob/user as mob, params)
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if(istype(W, /obj/item/weapon/wrench))
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var/turf/T = get_turf(src)
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if(!istype(T, /turf/simulated))
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return ..()
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anchored = !anchored
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to_chat(user, "You [(anchored) ? "fasten" : "loosen"] \the [src] to the floor")
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playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
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else return ..()
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