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CHOMPStation2/code/ATMOSPHERICS/components/trinary_devices/mixer.dm
Loganbacca 8e1ac09545 Trinary atmospheric device variants 
- Mirror filter - standard filter with the output mirrored to the opposite side
- T-Mixer - takes left and right inputs then outputs the mix perpendicular to the inputs
- Mirror mixer - standard filter with the output mirrored to the opposite side
- Added all three to pipe dispenser and construction code so they can be built in-game
2014-05-03 22:01:33 +12:00

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obj/machinery/atmospherics/trinary/mixer
icon = 'icons/obj/atmospherics/mixer.dmi'
icon_state = "intact_off"
density = 1
name = "Gas mixer"
var/on = 0
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
update_icon()
if(stat & NOPOWER)
icon_state = "intact_off"
else if(node2 && node3 && node1)
icon_state = "intact_[on?("on"):("off")]"
else
icon_state = "intact_off"
on = 0
return
power_change()
var/old_stat = stat
..()
if(old_stat != stat)
update_icon()
New()
..()
air3.volume = 300
process()
..()
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(network1 && transfer_moles1)
network1.update = 1
if(network2 && transfer_moles2)
network2.update = 1
if(network3)
network3.update = 1
return 1
attackby(var/obj/item/weapon/W as obj, var/mob/user as mob)
if (!istype(W, /obj/item/weapon/wrench))
return ..()
var/turf/T = src.loc
if (level==1 && isturf(T) && T.intact)
user << "\red You must remove the plating 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)
attack_hand(user as mob)
if(..())
return
src.add_fingerprint(usr)
if(!src.allowed(user))
user << "\red Access denied."
return
usr.set_machine(src)
var/dat = {"<b>Power: </b><a href='?src=\ref[src];power=1'>[on?"On":"Off"]</a><br>
<b>Desirable output pressure: </b>
[target_pressure]kPa | <a href='?src=\ref[src];set_press=1'>Change</a>
<br>
<b>Node 1 Concentration:</b>
<a href='?src=\ref[src];node1_c=-0.1'><b>-</b></a>
<a href='?src=\ref[src];node1_c=-0.01'>-</a>
[node1_concentration]([node1_concentration*100]%)
<a href='?src=\ref[src];node1_c=0.01'><b>+</b></a>
<a href='?src=\ref[src];node1_c=0.1'>+</a>
<br>
<b>Node 2 Concentration:</b>
<a href='?src=\ref[src];node2_c=-0.1'><b>-</b></a>
<a href='?src=\ref[src];node2_c=-0.01'>-</a>
[node2_concentration]([node2_concentration*100]%)
<a href='?src=\ref[src];node2_c=0.01'><b>+</b></a>
<a href='?src=\ref[src];node2_c=0.1'>+</a>
"}
user << browse("<HEAD><TITLE>[src.name] control</TITLE></HEAD><TT>[dat]</TT>", "window=atmo_mixer")
onclose(user, "atmo_mixer")
return
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))
if(href_list["node1_c"])
var/value = text2num(href_list["node1_c"])
src.node1_concentration = max(0, min(1, src.node1_concentration + value))
src.node2_concentration = max(0, min(1, src.node2_concentration - value))
if(href_list["node2_c"])
var/value = text2num(href_list["node2_c"])
src.node2_concentration = max(0, min(1, src.node2_concentration + value))
src.node1_concentration = max(0, min(1, src.node1_concentration - value))
src.update_icon()
src.updateUsrDialog()
return
obj/machinery/atmospherics/trinary/mixer/t_mixer
icon = 'icons/obj/atmospherics/t_mixer.dmi'
icon_state = "intact_off"
dir = SOUTH
initialize_directions = SOUTH|EAST|WEST
//node 3 is the outlet, nodes 1 & 2 are intakes
obj/machinery/atmospherics/trinary/mixer/t_mixer/New()
..()
switch(dir)
if(NORTH)
initialize_directions = EAST|NORTH|WEST
if(SOUTH)
initialize_directions = SOUTH|WEST|EAST
if(EAST)
initialize_directions = EAST|NORTH|SOUTH
if(WEST)
initialize_directions = WEST|NORTH|SOUTH
obj/machinery/atmospherics/trinary/mixer/t_mixer/initialize()
if(node1 && node2 && node3) return
var/node1_connect = turn(dir, -90)
var/node2_connect = turn(dir, 90)
var/node3_connect = dir
for(var/obj/machinery/atmospherics/target in get_step(src,node1_connect))
if(target.initialize_directions & get_dir(target,src))
node1 = target
break
for(var/obj/machinery/atmospherics/target in get_step(src,node2_connect))
if(target.initialize_directions & get_dir(target,src))
node2 = target
break
for(var/obj/machinery/atmospherics/target in get_step(src,node3_connect))
if(target.initialize_directions & get_dir(target,src))
node3 = target
break
update_icon()
obj/machinery/atmospherics/trinary/mixer/m_mixer
icon = 'icons/obj/atmospherics/m_mixer.dmi'
icon_state = "intact_off"
dir = SOUTH
initialize_directions = SOUTH|NORTH|EAST
//node 3 is the outlet, nodes 1 & 2 are intakes
obj/machinery/atmospherics/trinary/mixer/m_mixer/New()
..()
switch(dir)
if(NORTH)
initialize_directions = WEST|NORTH|SOUTH
if(SOUTH)
initialize_directions = SOUTH|EAST|NORTH
if(EAST)
initialize_directions = EAST|WEST|NORTH
if(WEST)
initialize_directions = WEST|SOUTH|EAST
obj/machinery/atmospherics/trinary/mixer/m_mixer/initialize()
if(node1 && node2 && node3) return
var/node1_connect = turn(dir, -180)
var/node2_connect = turn(dir, 90)
var/node3_connect = dir
for(var/obj/machinery/atmospherics/target in get_step(src,node1_connect))
if(target.initialize_directions & get_dir(target,src))
node1 = target
break
for(var/obj/machinery/atmospherics/target in get_step(src,node2_connect))
if(target.initialize_directions & get_dir(target,src))
node2 = target
break
for(var/obj/machinery/atmospherics/target in get_step(src,node3_connect))
if(target.initialize_directions & get_dir(target,src))
node3 = target
break
update_icon()
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