Adds a New Station Trait: Lights Out! (#31712)

* initial commit

* linter fix

code/datums/station_traits/neutral_traits.dm

@@ -125,3 +125,31 @@
 	new_scryer.update_appearance(UPDATE_NAME)
 
 	spawned.equip_to_slot_or_del(new_scryer, ITEM_SLOT_NECK, initial = FALSE)
+
+/datum/station_trait/darkness
+	name = "Electricity Saving"
+	weight = 5
+	show_in_report = TRUE
+	report_message = "The previous shift's engineers were real stingy with power and left most of the lights off. Hopefully we installed light switches in every room..."
+	blacklist = list(/datum/station_trait/rave)
+
+/datum/station_trait/darkness/on_round_start()
+	. = ..()
+	for(var/obj/machinery/light_switch/light_switch in SSmachines.get_by_type(/obj/machinery/light_switch))
+		var/turf/our_turf = get_turf(light_switch)
+		if(!is_station_level(our_turf.z))
+			continue
+
+		var/area/switch_area = get_area(light_switch)
+		switch_area.lightswitch = FALSE
+		light_switch.update_icon(UPDATE_ICON)
+
+		for(var/obj/machinery/light/light in switch_area)
+			light.power_change()
+
+		for(var/obj/item/flashlight/lamp/lamp in switch_area)
+			lamp.on = FALSE
+			lamp.update_brightness()
+
+		for(var/turf/simulated/floor/light/floor_light in switch_area)
+			floor_light.toggle_light(FALSE)