Adds Null Charge ability for the Shadowlings, replacing Drain Life

code/game/gamemodes/shadowling/shadowling_abilities.dm

@@ -335,7 +335,7 @@
 	include_user = 1
 	var/blind_smoke_acquired
 	var/screech_acquired
-	var/drainLifeAcquired
+	var/nullChargeAcquired
 	var/reviveThrallAcquired
 	action_icon_state = "collective_mind"
 
@@ -370,10 +370,11 @@
 			It will create a choking cloud that will blind any non-thralls who enter.</i></span>")
 			target.mind.AddSpell(new /obj/effect/proc_holder/spell/targeted/blindness_smoke(null))
 
-		if(thralls >= CEILING(7 * ticker.mode.thrall_ratio, 1) && !drainLifeAcquired)
-			drainLifeAcquired = 1
-			to_chat(target, "<span class='shadowling'><i>The power of your thralls has granted you the <b>Drain Life</b> ability. You can now drain the health of nearby humans to heal yourself.</i></span>")
-			target.mind.AddSpell(new /obj/effect/proc_holder/spell/aoe_turf/drainLife(null))
+		if(thralls >= CEILING(7 * ticker.mode.thrall_ratio, 1) && !nullChargeAcquired)
+			nullChargeAcquired = 1
+			to_chat(user, "<span class='shadowling'><i>The power of your thralls has granted you the <b>Null Charge</b> ability. This ability will drain an APC's contents to the void, preventing it from recharging \
+			or sending power until repaired.</i></span>")
+			target.mind.AddSpell(new /obj/effect/proc_holder/spell/aoe_turf/null_charge(null))
 
 		if(thralls >= CEILING(9 * ticker.mode.thrall_ratio, 1) && !reviveThrallAcquired)
 			reviveThrallAcquired = 1
@@ -491,45 +492,57 @@
 		for(var/obj/structure/window/W in T.contents)
 			W.take_damage(rand(80, 100))
 
-/obj/effect/proc_holder/spell/aoe_turf/drainLife
-	name = "Drain Life"
-	desc = "Damages nearby humans, draining their life and healing your own wounds."
+/obj/effect/proc_holder/spell/aoe_turf/null_charge
+	name = "Null Charge"
+	desc = "Empties an APC, preventing it from recharging until fixed."
 	panel = "Shadowling Abilities"
-	range = 3
-	charge_max = 100
-	clothes_req = 0
-	var/targetsDrained
-	var/list/nearbyTargets
-	action_icon_state = "drain_life"
+	charge_max = 600
+	clothes_req = FALSE
+	action_icon_state = "null_charge"
 
-/obj/effect/proc_holder/spell/aoe_turf/drainLife/cast(list/targets, mob/user = usr)
+/obj/effect/proc_holder/spell/aoe_turf/null_charge/cast(mob/user = usr)
 	if(!shadowling_check(user))
 		charge_counter = charge_max
 		return
-	var/mob/living/carbon/human/U = usr
-	targetsDrained = 0
-	nearbyTargets = list()
-	for(var/turf/T in targets)
-		for(var/mob/living/carbon/M in T.contents)
-			if(M == src)
-				continue
-			targetsDrained++
-			nearbyTargets.Add(M)
-	if(!targetsDrained)
+
+	var/list/local_objs = view(1, user)
+	var/obj/machinery/power/apc/target_apc
+	for(var/object in local_objs)
+		if(istype(object, /obj/machinery/power/apc))
+			target_apc = object
+			break
+
+	if(!target_apc)
+		to_chat(user, "<span class='warning'>You must stand next to an APC to drain it!</span>")
 		charge_counter = charge_max
-		to_chat(U, "<span class='warning'>There were no nearby humans for you to drain.</span>")
 		return
-	for(var/mob/living/carbon/M in nearbyTargets)
-		U.heal_organ_damage(10, 10)
-		U.adjustToxLoss(-10)
-		U.adjustOxyLoss(-10)
-		U.adjustStaminaLoss(-20)
-		U.AdjustWeakened(-1)
-		U.AdjustStunned(-1)
-		M.adjustOxyLoss(20)
-		M.adjustStaminaLoss(20)
-		to_chat(M, "<span class='boldannounce'>You feel a wave of exhaustion and a curious draining sensation directed towards [U]!</span>")
-	to_chat(U, "<span class='shadowling'>You draw life from those around you to heal your wounds.</span>")
+	
+	if(target_apc.cell?.charge == 0)
+		to_chat(user, "<span class='warning'>APC must have a power to drain!</span>")
+		charge_counter = charge_max
+		return
+
+	target_apc.operating = 0
+	target_apc.update()
+	target_apc.update_icon()
+	target_apc.visible_message("<span class='warning'>The [target_apc] flickers and begins to grow dark.</span>")
+
+	to_chat(user, "<span class='shadowling'>You dim the APC's screen and carefully begin siphoning its power into the void.</span>")
+	if(!do_after(user, 200, target=target_apc))
+		//Whoops!  The APC's powers back on
+		to_chat(user, "<span class='shadowling'>Your concentration breaks and the APC suddenly repowers!</span>")
+		target_apc.operating = 1
+		target_apc.update()
+		target_apc.update_icon()
+		target_apc.visible_message("<span class='warning'>The [target_apc] begins glowing brightly!</span>")
+	else
+		//We did it!
+		to_chat(user, "<span class='shadowling'>You sent the APC's power to the void while overloading all it's lights!</span>")
+		target_apc.cell?.charge = 0	//Sent to the shadow realm
+		target_apc.chargemode = 0 //Won't recharge either until an someone hits the button
+		target_apc.charging = 0
+		target_apc.null_charge()
+		target_apc.update_icon()
 
 
 

code/modules/power/apc.dm

@@ -1352,6 +1352,11 @@
 					L.broken(0, 1)
 					stoplag()
 
+/obj/machinery/power/apc/proc/null_charge()
+	for(var/obj/machinery/light/L in area)
+		L.broken(0, 1)
+		stoplag()
+
 /obj/machinery/power/apc/proc/setsubsystem(val)
 	if(cell && cell.charge > 0)
 		return (val==1) ? 0 : val