Files
vgstation13/code/ATMOSPHERICS/components/binary_devices/pump.dm
johnsonmt88@gmail.com 883b290064 Server crashing and exploit fixes
Added a cooldown to the containment field shocking players
- If a containment field was set up in a small room, it was possible to crash the server by jumping into the field with no way to escape it. This was likely due to the hundreds of spark effects being generated every second, on top of all the other calls it had to make.

Used the existing parent proc to check for proximity, canmove and death on:
- Atmos pumps
- Atmos mixers
- Canisters. (This should finish off issue 397.)
- Crew monitering computer (This one probably didn't need it but it shouldn't change the way it works.)

Added admin checks to:
- datum/mind
- tensioner
If either of these fail an admin check an admin log will be entered into the server logs and a message will be displayed to admins.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3818 316c924e-a436-60f5-8080-3fe189b3f50e
2012-06-14 19:31:15 +00:00

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5.1 KiB
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/*
Every cycle, the pump uses the air in air_in to try and make air_out the perfect pressure.
node1, air1, network1 correspond to input
node2, air2, network2 correspond to output
Thus, the two variables affect pump operation are set in New():
air1.volume
This is the volume of gas available to the pump that may be transfered to the output
air2.volume
Higher quantities of this cause more air to be perfected later
but overall network volume is also increased as this increases...
*/
obj/machinery/atmospherics/binary/pump
icon = 'pump.dmi'
icon_state = "intact_off"
name = "Gas pump"
desc = "A pump"
var/on = 0
var/target_pressure = ONE_ATMOSPHERE
var/frequency = 0
var/id = null
var/datum/radio_frequency/radio_connection
/*
attack_hand(mob/user)
on = !on
update_icon()
*/
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"
return
process()
// ..()
if(stat & (NOPOWER|BROKEN))
return
if(!on)
return 0
var/output_starting_pressure = air2.return_pressure()
if( (target_pressure - output_starting_pressure) < 0.01)
//No need to pump gas if target is already reached!
return 1
//Calculate necessary moles to transfer using PV=nRT
if((air1.total_moles() > 0) && (air1.temperature>0))
var/pressure_delta = target_pressure - output_starting_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
return 1
//Radio remote control
proc
set_frequency(new_frequency)
radio_controller.remove_object(src, frequency)
frequency = new_frequency
if(frequency)
radio_connection = radio_controller.add_object(src, frequency, filter = RADIO_ATMOSIA)
broadcast_status()
if(!radio_connection)
return 0
var/datum/signal/signal = new
signal.transmission_method = 1 //radio signal
signal.source = src
signal.data = list(
"tag" = id,
"device" = "AGP",
"power" = on,
"target_output" = target_pressure,
"sigtype" = "status"
)
radio_connection.post_signal(src, signal, filter = RADIO_ATMOSIA)
return 1
interact(mob/user as mob)
var/dat = {"<b>Power: </b><a href='?src=\ref[src];power=1'>[on?"On":"Off"]</a><br>
<b>Desirable output pressure: </b>
[round(target_pressure,0.1)]kPa | <a href='?src=\ref[src];set_press=1'>Change</a>
"}
user << browse("<HEAD><TITLE>[src.name] control</TITLE></HEAD><TT>[dat]</TT>", "window=atmo_pump")
onclose(user, "atmo_pump")
initialize()
..()
if(frequency)
set_frequency(frequency)
receive_signal(datum/signal/signal)
if(!signal.data["tag"] || (signal.data["tag"] != id) || (signal.data["sigtype"]!="command"))
return 0
if("power" in signal.data)
on = text2num(signal.data["power"])
if("power_toggle" in signal.data)
on = !on
if("set_output_pressure" in signal.data)
target_pressure = between(
0,
text2num(signal.data["set_output_pressure"]),
ONE_ATMOSPHERE*50
)
if("status" in signal.data)
spawn(2)
broadcast_status()
return //do not update_icon
spawn(2)
broadcast_status()
update_icon()
return
attack_hand(user as mob)
if(..())
return
src.add_fingerprint(usr)
if(!src.allowed(user))
user << "\red Access denied."
return
usr.machine = src
interact(user)
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))
usr.machine = src
src.update_icon()
src.updateUsrDialog()
return
power_change()
..()
update_icon()
attackby(var/obj/item/weapon/W as obj, var/mob/user as mob)
if (!istype(W, /obj/item/weapon/wrench))
return ..()
if (!(stat & NOPOWER) && on)
user << "\red You cannot unwrench this [src], turn it off first."
return 1
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, '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)