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https://github.com/CHOMPStation2/CHOMPStation2.git
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5d2435611d
Co-authored-by: SatinIsle <98125273+SatinIsle@users.noreply.github.com> Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>
138 lines
4.1 KiB
Plaintext
138 lines
4.1 KiB
Plaintext
// Powersink - used to drain station power
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/obj/item/powersink
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name = "power sink"
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desc = "A nulling power sink which drains energy from electrical systems."
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icon_state = "powersink0"
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icon = 'icons/obj/device.dmi'
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w_class = ITEMSIZE_LARGE
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throwforce = 5
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throw_speed = 1
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throw_range = 2
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matter = list(MAT_STEEL = 750)
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origin_tech = list(TECH_POWER = 3, TECH_ILLEGAL = 5)
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var/drain_rate = 1500000 // amount of power to drain per tick
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var/apc_drain_rate = 5000 // Max. amount drained from single APC. In Watts.
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var/dissipation_rate = 20000 // Passive dissipation of drained power. In Watts.
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var/power_drained = 0 // Amount of power drained.
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var/max_power = 1e9 // Detonation point.
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var/mode = 0 // 0 = off, 1=clamped (off), 2=operating
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var/drained_this_tick = 0 // This is unfortunately necessary to ensure we process powersinks BEFORE other machinery such as APCs.
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var/datum/powernet/PN // Our powernet
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var/obj/structure/cable/attached // the attached cable
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pickup_sound = 'sound/items/pickup/device.ogg'
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drop_sound = 'sound/items/drop/device.ogg'
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/obj/item/powersink/Destroy()
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STOP_PROCESSING(SSobj, src)
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STOP_PROCESSING_POWER_OBJECT(src)
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. = ..()
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/obj/item/powersink/attackby(var/obj/item/I, var/mob/user)
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if(I.has_tool_quality(TOOL_SCREWDRIVER))
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if(mode == 0)
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var/turf/T = loc
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if(isturf(T) && !!T.is_plating())
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attached = locate() in T
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if(!attached)
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to_chat(user, "No exposed cable here to attach to.")
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return
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else
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anchored = TRUE
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mode = 1
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src.visible_message(span_notice("[user] attaches [src] to the cable!"))
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playsound(src, I.usesound, 50, 1)
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return
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else
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to_chat(user, "Device must be placed over an exposed cable to attach to it.")
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return
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else
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if (mode == 2)
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STOP_PROCESSING(SSobj, src) // Now the power sink actually stops draining the station's power if you unhook it. --NeoFite
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STOP_PROCESSING_POWER_OBJECT(src)
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anchored = FALSE
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mode = 0
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src.visible_message(span_notice("[user] detaches [src] from the cable!"))
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set_light(0)
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playsound(src, I.usesound, 50, 1)
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icon_state = "powersink0"
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return
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else
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..()
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/obj/item/powersink/attack_ai()
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return
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/obj/item/powersink/attack_hand(var/mob/user)
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switch(mode)
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if(0)
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..()
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if(1)
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src.visible_message(span_notice("[user] activates [src]!"))
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mode = 2
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icon_state = "powersink1"
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START_PROCESSING(SSobj, src)
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datum_flags &= ~DF_ISPROCESSING // Have to reset this flag so that PROCESSING_POWER_OBJECT can re-add it. It fails if the flag is already present. - Ater
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START_PROCESSING_POWER_OBJECT(src)
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if(2) //This switch option wasn't originally included. It exists now. --NeoFite
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src.visible_message(span_notice("[user] deactivates [src]!"))
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mode = 1
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set_light(0)
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icon_state = "powersink0"
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STOP_PROCESSING(SSobj, src)
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STOP_PROCESSING_POWER_OBJECT(src)
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/obj/item/powersink/pwr_drain()
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if(!attached)
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return 0
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if(drained_this_tick)
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return 1
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drained_this_tick = 1
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var/drained = 0
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if(!PN)
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return 1
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set_light(12)
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PN.trigger_warning()
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// found a powernet, so drain up to max power from it
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drained = PN.draw_power(drain_rate)
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// if tried to drain more than available on powernet
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// now look for APCs and drain their cells
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if(drained < drain_rate)
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for(var/obj/machinery/power/terminal/T in PN.nodes)
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// Enough power drained this tick, no need to torture more APCs
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if(drained >= drain_rate)
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break
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if(istype(T.master, /obj/machinery/power/apc))
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var/obj/machinery/power/apc/A = T.master
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if(A.operating && A.cell)
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var/cur_charge = A.cell.charge / CELLRATE
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var/drain_val = min(apc_drain_rate, cur_charge)
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A.cell.use(drain_val * CELLRATE)
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drained += drain_val
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power_drained += drained
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return 1
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/obj/item/powersink/process()
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drained_this_tick = 0
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power_drained -= min(dissipation_rate, power_drained)
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if(power_drained > max_power * 0.95)
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playsound(src, 'sound/effects/screech.ogg', 100, 1, 1)
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if(power_drained >= max_power)
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explosion(src.loc, 3,6,9,12)
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qdel(src)
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return
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if(attached && attached.powernet)
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PN = attached.powernet
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else
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PN = null
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