Files
S.P.L.U.R.T-Station-13/code/game/objects/items/devices/powersink.dm
2021-01-01 03:35:54 +00:00

160 lines
4.8 KiB
Plaintext

// Powersink - used to drain station power
GLOBAL_LIST_EMPTY(power_sinks)
/obj/item/powersink
desc = "A nulling power sink which drains energy from electrical systems."
name = "power sink"
icon = 'icons/obj/device.dmi'
icon_state = "powersink0"
item_state = "electronic"
lefthand_file = 'icons/mob/inhands/misc/devices_lefthand.dmi'
righthand_file = 'icons/mob/inhands/misc/devices_righthand.dmi'
w_class = WEIGHT_CLASS_BULKY
flags_1 = CONDUCT_1
throwforce = 5
throw_speed = 1
throw_range = 2
custom_materials = list(/datum/material/iron=750)
var/drain_rate = 2000000 // amount of power to drain per tick. Currently 2MJ.
var/power_drained = 0 // has drained this much power
var/max_power = 2000000000 // maximum power that can be drained before exploding. Currently 2GJ. About 17 minutes to explode at the max rate.
var/mode = 0 // 0 = off, 1=clamped (off), 2=operating
var/admins_warned = FALSE // stop spam, only warn the admins once that we are about to boom
var/const/DISCONNECTED = 0
var/const/CLAMPED_OFF = 1
var/const/OPERATING = 2
var/obj/structure/cable/attached // the attached cable
/obj/item/powersink/Initialize()
. = ..()
GLOB.power_sinks += src
/obj/item/powersink/Destroy()
GLOB.power_sinks -= src
. = ..()
/obj/item/powersink/update_icon_state()
icon_state = "powersink[mode == OPERATING]"
/obj/item/powersink/proc/set_mode(value)
if(value == mode)
return
switch(value)
if(DISCONNECTED)
attached = null
if(mode == OPERATING)
STOP_PROCESSING(SSobj, src)
anchored = FALSE
if(CLAMPED_OFF)
if(!attached)
return
if(mode == OPERATING)
STOP_PROCESSING(SSobj, src)
anchored = TRUE
if(OPERATING)
if(!attached)
return
START_PROCESSING(SSobj, src)
anchored = TRUE
mode = value
update_icon()
set_light(0)
/obj/item/powersink/attackby(obj/item/I, mob/user, params)
if(istype(I, /obj/item/screwdriver))
if(mode == DISCONNECTED)
var/turf/T = loc
if(isturf(T) && !T.intact)
attached = locate() in T
if(!attached)
to_chat(user, "<span class='warning'>This device must be placed over an exposed, powered cable node!</span>")
else
set_mode(CLAMPED_OFF)
user.visible_message( \
"[user] attaches \the [src] to the cable.", \
"<span class='notice'>You attach \the [src] to the cable.</span>",
"<span class='italics'>You hear some wires being connected to something.</span>")
else
to_chat(user, "<span class='warning'>This device must be placed over an exposed, powered cable node!</span>")
else
set_mode(DISCONNECTED)
user.visible_message( \
"[user] detaches \the [src] from the cable.", \
"<span class='notice'>You detach \the [src] from the cable.</span>",
"<span class='italics'>You hear some wires being disconnected from something.</span>")
else
return ..()
/obj/item/powersink/attack_paw()
return
/obj/item/powersink/attack_ai()
return
/obj/item/powersink/on_attack_hand(mob/user, act_intent = user.a_intent, unarmed_attack_flags)
switch(mode)
if(DISCONNECTED)
..()
if(CLAMPED_OFF)
user.visible_message( \
"[user] activates \the [src]!", \
"<span class='notice'>You activate \the [src].</span>",
"<span class='italics'>You hear a click.</span>")
message_admins("Power sink activated by [ADMIN_LOOKUPFLW(user)] at [ADMIN_VERBOSEJMP(src)]")
log_game("Power sink activated by [key_name(user)] at [AREACOORD(src)]")
set_mode(OPERATING)
if(OPERATING)
user.visible_message( \
"[user] deactivates \the [src]!", \
"<span class='notice'>You deactivate \the [src].</span>",
"<span class='italics'>You hear a click.</span>")
set_mode(CLAMPED_OFF)
/obj/item/powersink/process()
if(!attached)
set_mode(DISCONNECTED)
return
var/datum/powernet/PN = attached.powernet
if(PN)
set_light(5)
// found a powernet, so drain up to max power from it
var/drained = min ( drain_rate, attached.newavail() )
attached.add_delayedload(drained)
power_drained += drained
// if tried to drain more than available on powernet
// now look for APCs and drain their cells
if(drained < drain_rate)
for(var/obj/machinery/power/terminal/T in PN.nodes)
if(istype(T.master, /obj/machinery/power/apc))
var/obj/machinery/power/apc/A = T.master
if(A.operating && A.cell)
A.cell.charge = max(0, A.cell.charge - 50)
power_drained += 50
if(A.charging == 2) // If the cell was full
A.charging = 1 // It's no longer full
if(drained >= drain_rate)
break
if(power_drained > max_power * 0.98)
if (!admins_warned)
admins_warned = TRUE
message_admins("Power sink at ([x],[y],[z] - <A HREF='?_src_=holder;[HrefToken()];adminplayerobservecoodjump=1;X=[x];Y=[y];Z=[z]'>JMP</a>) is 95% full. Explosion imminent.")
playsound(src, 'sound/effects/screech.ogg', 100, 1, 1)
if(power_drained >= max_power)
STOP_PROCESSING(SSobj, src)
explosion(src.loc, 3,7,14,28)
qdel(src)