Removes most hard-coded z level checks

code/modules/admin/topic.dm

@@ -1979,8 +1979,7 @@
 				return
 		else
 			for(var/obj/machinery/photocopier/faxmachine/F in allfaxes)
-				// TODO: Tie into space manager
-				if((F.z in config.station_levels))
+				if(is_station_level(F.z))
 					spawn(0)
 						if(!F.receivefax(P))
 							to_chat(src.owner, "\red Message transmission to [F.department] failed.")
@@ -2327,8 +2326,7 @@
 				for(var/mob/living/carbon/human/H in mob_list)
 					var/turf/loc = find_loc(H)
 					var/security = 0
-					// TODO: Tie into space manager
-					if(!(loc.z in config.station_levels) || prisonwarped.Find(H))
+					if(!is_station_level(loc.z) || prisonwarped.Find(H))
 
 //don't warp them if they aren't ready or are already there
 						continue
@@ -2565,8 +2563,7 @@
 				feedback_inc("admin_secrets_fun_used",1)
 				feedback_add_details("admin_secrets_fun_used","EgL")
 				for(var/obj/machinery/door/airlock/W in world)
-					// TODO: Tie into space manager
-					if((W.z in config.station_levels) && !istype(get_area(W), /area/bridge) && !istype(get_area(W), /area/crew_quarters) && !istype(get_area(W), /area/security/prison))
+					if(is_station_level(W.z) && !istype(get_area(W), /area/bridge) && !istype(get_area(W), /area/crew_quarters) && !istype(get_area(W), /area/security/prison))
 						W.req_access = list()
 				message_admins("[key_name_admin(usr)] activated Egalitarian Station mode")
 				command_announcement.Announce("Centcomm airlock control override activated. Please take this time to get acquainted with your coworkers.", new_sound = 'sound/AI/commandreport.ogg')

code/modules/admin/verbs/debug.dm

@@ -373,8 +373,7 @@ But you can call procs that are of type /mob/living/carbon/human/proc/ for that
 
 	for(var/I in singularities)
 		var/obj/singularity/S = I
-		// TODO: Tie into space manager
-		if(S.z == ZLEVEL_CENTCOMM  || S.z >= MAX_Z)
+		if(!is_level_reachable(S.z))
 			continue
 		qdel(S)
 	log_admin("[key_name(src)] has deleted all Singularities and Tesla orbs.")

code/modules/admin/verbs/playsound.dm

@@ -81,8 +81,7 @@ var/list/sounds_cache = list()
 
 	for(var/O in global_intercoms)
 		var/obj/item/device/radio/intercom/I = O
-		// TODO: Tie into space manager
-		if(I.z != ZLEVEL_STATION && !ignore_z)
+		if(is_station_level(I.z) && !ignore_z)
 			continue
 		if(!I.on && !ignore_power)
 			continue