mirror of
https://github.com/CHOMPStation2/CHOMPStation2.git
synced 2025-12-11 10:43:20 +00:00
3978492ca4
So they can be used in other areas of the station (like toxins and the engine room) without needing atmos access to change settings.
163 lines
4.9 KiB
Plaintext
163 lines
4.9 KiB
Plaintext
obj/machinery/atmospherics/trinary/mixer
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icon = 'icons/obj/atmospherics/mixer.dmi'
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icon_state = "intact_off"
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density = 1
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name = "Gas mixer"
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var/on = 0
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var/target_pressure = ONE_ATMOSPHERE
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var/node1_concentration = 0.5
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var/node2_concentration = 0.5
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//node 3 is the outlet, nodes 1 & 2 are intakes
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update_icon()
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if(stat & NOPOWER)
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icon_state = "intact_off"
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else if(node2 && node3 && node1)
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icon_state = "intact_[on?("on"):("off")]"
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else
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icon_state = "intact_off"
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on = 0
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return
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power_change()
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var/old_stat = stat
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..()
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if(old_stat != stat)
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update_icon()
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New()
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..()
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air3.volume = 300
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process()
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..()
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if(!on)
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return 0
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var/output_starting_pressure = air3.return_pressure()
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if(output_starting_pressure >= target_pressure)
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//No need to mix if target is already full!
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return 1
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//Calculate necessary moles to transfer using PV=nRT
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var/pressure_delta = target_pressure - output_starting_pressure
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var/transfer_moles1 = 0
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var/transfer_moles2 = 0
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if(air1.temperature > 0)
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transfer_moles1 = (node1_concentration*pressure_delta)*air3.volume/(air1.temperature * R_IDEAL_GAS_EQUATION)
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if(air2.temperature > 0)
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transfer_moles2 = (node2_concentration*pressure_delta)*air3.volume/(air2.temperature * R_IDEAL_GAS_EQUATION)
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var/air1_moles = air1.total_moles()
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var/air2_moles = air2.total_moles()
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if((air1_moles < transfer_moles1) || (air2_moles < transfer_moles2))
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if(!transfer_moles1 || !transfer_moles2) return
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var/ratio = min(air1_moles/transfer_moles1, air2_moles/transfer_moles2)
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transfer_moles1 *= ratio
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transfer_moles2 *= ratio
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//Actually transfer the gas
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if(transfer_moles1 > 0)
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var/datum/gas_mixture/removed1 = air1.remove(transfer_moles1)
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air3.merge(removed1)
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if(transfer_moles2 > 0)
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var/datum/gas_mixture/removed2 = air2.remove(transfer_moles2)
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air3.merge(removed2)
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if(network1 && transfer_moles1)
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network1.update = 1
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if(network2 && transfer_moles2)
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network2.update = 1
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if(network3)
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network3.update = 1
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return 1
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attackby(var/obj/item/weapon/W as obj, var/mob/user as mob)
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if (!istype(W, /obj/item/weapon/wrench))
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return ..()
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var/turf/T = src.loc
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if (level==1 && isturf(T) && T.intact)
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user << "\red You must remove the plating first."
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return 1
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var/datum/gas_mixture/int_air = return_air()
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var/datum/gas_mixture/env_air = loc.return_air()
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if ((int_air.return_pressure()-env_air.return_pressure()) > 2*ONE_ATMOSPHERE)
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user << "\red You cannot unwrench this [src], it too exerted due to internal pressure."
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add_fingerprint(user)
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return 1
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playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
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user << "\blue You begin to unfasten \the [src]..."
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if (do_after(user, 40))
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user.visible_message( \
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"[user] unfastens \the [src].", \
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"\blue You have unfastened \the [src].", \
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"You hear ratchet.")
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new /obj/item/pipe(loc, make_from=src)
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del(src)
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attack_hand(user as mob)
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if(..())
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return
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src.add_fingerprint(usr)
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if(!src.allowed(user))
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user << "\red Access denied."
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return
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usr.set_machine(src)
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var/dat = {"<b>Power: </b><a href='?src=\ref[src];power=1'>[on?"On":"Off"]</a><br>
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<b>Desirable output pressure: </b>
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[target_pressure]kPa | <a href='?src=\ref[src];set_press=1'>Change</a>
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<br>
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<b>Node 1 Concentration:</b>
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<a href='?src=\ref[src];node1_c=-0.1'><b>-</b></a>
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<a href='?src=\ref[src];node1_c=-0.01'>-</a>
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[node1_concentration]([node1_concentration*100]%)
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<a href='?src=\ref[src];node1_c=0.01'><b>+</b></a>
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<a href='?src=\ref[src];node1_c=0.1'>+</a>
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<br>
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<b>Node 2 Concentration:</b>
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<a href='?src=\ref[src];node2_c=-0.1'><b>-</b></a>
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<a href='?src=\ref[src];node2_c=-0.01'>-</a>
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[node2_concentration]([node2_concentration*100]%)
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<a href='?src=\ref[src];node2_c=0.01'><b>+</b></a>
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<a href='?src=\ref[src];node2_c=0.1'>+</a>
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"}
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user << browse("<HEAD><TITLE>[src.name] control</TITLE></HEAD><TT>[dat]</TT>", "window=atmo_mixer")
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onclose(user, "atmo_mixer")
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return
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Topic(href,href_list)
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if(..()) return
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if(href_list["power"])
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on = !on
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if(href_list["set_press"])
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var/new_pressure = input(usr,"Enter new output pressure (0-4500kPa)","Pressure control",src.target_pressure) as num
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src.target_pressure = max(0, min(4500, new_pressure))
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if(href_list["node1_c"])
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var/value = text2num(href_list["node1_c"])
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src.node1_concentration = max(0, min(1, src.node1_concentration + value))
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src.node2_concentration = max(0, min(1, src.node2_concentration - value))
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if(href_list["node2_c"])
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var/value = text2num(href_list["node2_c"])
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src.node2_concentration = max(0, min(1, src.node2_concentration + value))
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src.node1_concentration = max(0, min(1, src.node1_concentration - value))
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src.update_icon()
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src.updateUsrDialog()
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return
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