Merge pull request #5268 from Crazylemon64/space_allocation

Removes most hard-coded z level checks

_maps/__MAP_DEFINES.dm

@@ -1,6 +1,32 @@
+
+// Linkage flags
 	#define CROSSLINKED 2
 	#define SELFLOOPING 1
 	#define UNAFFECTED 0
+// Attributes (In text for the convenience of those using VV)
+	#define BLOCK_TELEPORT "Blocks Teleport"
+	// Impedes with the casting of some spells
+	#define IMPEDES_MAGIC "Impedes Magic"
+	// A level the station exists on
+	#define STATION_LEVEL "Station Level"
+	// A level affected by Code Red announcements, cargo telepads, or similar
+	#define STATION_CONTACT "Station Contact"
+	// A level dedicated to admin use
+	#define ADMIN_LEVEL "Admin Level"
+	// A level that can be navigated to through space
+	#define REACHABLE "Reachable"
+	// For away missions - used by some consoles
+	#define AWAY_LEVEL "Away"
+	// Allows weather
+	#define HAS_WEATHER "Weather"
+	// Enhances telecomms signals
+	#define BOOSTS_SIGNAL "Boosts signals"
+	// Currently used for determining mining score
+	#define ORE_LEVEL "Mining"
+	// Levels the AI can control bots on
+	#define AI_OK "AI Allowed"
+
+// Level names
 	#define MAIN_STATION "Main Station"
 	#define CENTCOMM "CentComm"
 	#define TELECOMMS "Telecomms Satellite"
@@ -10,4 +36,8 @@
 	#define EMPTY_AREA "Empty Area"
 	#define EMPTY_AREA_2 "Empty Area 2"
 	#define AWAY_MISSION "Away Mission"
-	#define AWAY_MISSION_LIST list(AWAY_MISSION = UNAFFECTED)
+
+// Convenience define
+	#define DECLARE_LEVEL(NAME,LINKS,TRAITS) list("name" = NAME, "linkage" = LINKS, "attributes" = TRAITS)
+
+	#define AWAY_MISSION_LIST list(DECLARE_LEVEL(AWAY_MISSION,UNAFFECTED,list(BLOCK_TELEPORT, AWAY_LEVEL)))

_maps/cyberiad.dm

@@ -24,7 +24,14 @@ z7 = empty
 
         #define MAP_FILE "cyberiad.dmm"
         #define MAP_NAME "NSS Cyberiad"
-        #define MAP_TRANSITION_CONFIG list(MAIN_STATION = CROSSLINKED, CENTCOMM = SELFLOOPING, TELECOMMS = CROSSLINKED, CONSTRUCTION = CROSSLINKED, MINING = CROSSLINKED, DERELICT = CROSSLINKED, EMPTY_AREA = CROSSLINKED)
+        #define MAP_TRANSITION_CONFIG list(\
+DECLARE_LEVEL(MAIN_STATION, CROSSLINKED, list(STATION_LEVEL,STATION_CONTACT,REACHABLE,AI_OK)),\
+DECLARE_LEVEL(CENTCOMM, SELFLOOPING, list(ADMIN_LEVEL, BLOCK_TELEPORT, IMPEDES_MAGIC)),\
+DECLARE_LEVEL(TELECOMMS, CROSSLINKED, list(REACHABLE, BOOSTS_SIGNAL, AI_OK)),\
+DECLARE_LEVEL(CONSTRUCTION, CROSSLINKED, list(REACHABLE)),\
+DECLARE_LEVEL(MINING, CROSSLINKED, list(REACHABLE, STATION_CONTACT, HAS_WEATHER, ORE_LEVEL, AI_OK)),\
+DECLARE_LEVEL(DERELICT, CROSSLINKED, list(REACHABLE)),\
+DECLARE_LEVEL(EMPTY_AREA, CROSSLINKED, list(REACHABLE)))
 
 #elif !defined(MAP_OVERRIDE)
 

_maps/metastation.dm

@@ -25,7 +25,14 @@ z7 = empty space
 
         #define MAP_FILE "MetaStation.v41A.II.dmm"
         #define MAP_NAME "MetaStation"
-        #define MAP_TRANSITION_CONFIG list(MAIN_STATION = CROSSLINKED, CENTCOMM = SELFLOOPING, TELECOMMS = CROSSLINKED, DERELICT = CROSSLINKED, MINING = CROSSLINKED, EMPTY_AREA = CROSSLINKED, EMPTY_AREA_2 = CROSSLINKED)
+        #define MAP_TRANSITION_CONFIG list(\
+DECLARE_LEVEL(MAIN_STATION, CROSSLINKED, list(STATION_LEVEL, STATION_CONTACT, REACHABLE, AI_OK)),\
+DECLARE_LEVEL(CENTCOMM, SELFLOOPING, list(ADMIN_LEVEL, BLOCK_TELEPORT, IMPEDES_MAGIC)),\
+DECLARE_LEVEL(TELECOMMS, CROSSLINKED, list(REACHABLE, BOOSTS_SIGNAL, AI_OK)),\
+DECLARE_LEVEL(DERELICT, CROSSLINKED, list(REACHABLE)),\
+DECLARE_LEVEL(MINING, CROSSLINKED, list(REACHABLE, STATION_CONTACT, AI_OK, ORE_LEVEL, HAS_WEATHER)),\
+DECLARE_LEVEL(EMPTY_AREA, CROSSLINKED, list(REACHABLE)),\
+DECLARE_LEVEL(EMPTY_AREA_2, CROSSLINKED, list(REACHABLE)))
 
 #elif !defined(MAP_OVERRIDE)
 

code/__DEFINES/misc.dm

@@ -1,20 +1,5 @@
-
-
-
-//zlevel defines, can be overriden for different maps in the appropriate _maps file.
-#define ZLEVEL_STATION  1
-#define ZLEVEL_CENTCOMM 2
-#define ZLEVEL_TELECOMMS 3
-#define ZLEVEL_ENGI 4
-#define ZLEVEL_ASTEROID 5
-#define ZLEVEL_DERELICT 6
-#define ZLEVEL_EMPTY 7
-#define MAX_Z	7 // Used in space.dm to defince which Z-levels cannot be exited via space.
 #define TRANSITIONEDGE	7 //Distance from edge to move to another z-level
 
-///
-#define ENGINE_EJECT_Z	3
-
 //Object specific defines
 #define CANDLE_LUM 3 //For how bright candles are
 

code/_globalvars/mapping.dm

@@ -7,14 +7,6 @@ var/list/cardinal = list( NORTH, SOUTH, EAST, WEST )
 var/list/alldirs = list(NORTH, SOUTH, EAST, WEST, NORTHEAST, NORTHWEST, SOUTHEAST, SOUTHWEST)
 var/list/diagonals = list(NORTHEAST, NORTHWEST, SOUTHEAST, SOUTHWEST)
 
-//This list contains the z-level numbers which can be accessed via space travel and the percentile chances to get there.
-//(Exceptions: extended, sandbox and nuke) -Errorage
-//Was list("3" = 30, "4" = 70).
-//Spacing should be a reliable method of getting rid of a body -- Urist.
-//Go away Urist, I'm restoring this to the longer list. ~Errorage
-// TODO: Tie into space manager
-var/list/accessable_z_levels = list(ZLEVEL_STATION,ZLEVEL_TELECOMMS,ZLEVEL_ENGI,ZLEVEL_ASTEROID,ZLEVEL_DERELICT,ZLEVEL_EMPTY) //Keep this to six maps, repeating z-levels is okay if needed
-
 var/global/list/global_map = null
 	//list/global_map = list(list(1,5),list(4,3))//an array of map Z levels.
 	//Resulting sector map looks like
@@ -26,9 +18,6 @@ var/global/list/global_map = null
 	//3 - AI satellite
 	//5 - empty space
 
-// TODO: Tie into space manager
-var/shuttle_z = ZLEVEL_CENTCOMM	//default
-
 var/list/monkeystart = list()
 var/list/wizardstart = list()
 var/list/newplayer_start = list()

code/controllers/Processes/shuttles.dm

@@ -164,8 +164,7 @@ var/const/CALL_SHUTTLE_REASON_LENGTH = 12
 				continue
 
 		var/turf/T = get_turf(thing)
-		// TODO: Tie into space manager
-		if(T && T.z == ZLEVEL_STATION)
+		if(T && is_station_level(T.z))
 			callShuttle = 0
 			break
 
@@ -210,8 +209,7 @@ var/const/CALL_SHUTTLE_REASON_LENGTH = 12
 		if(!M.roundstart_move)
 			continue
 		for(var/obj/docking_port/stationary/S in stationary)
-			// TODO: Tie into space manager
-			if(S.z != ZLEVEL_STATION && findtext(S.id, M.id))
+			if(!is_station_level(S.z) && findtext(S.id, M.id))
 				S.width = M.width
 				S.height = M.height
 				S.dwidth = M.dwidth

code/controllers/Processes/weather.dm

@@ -1,5 +1,5 @@
-// TODO: Tie into space manager
 //Used for all kinds of weather, ex. lavaland ash storms.
+// TODO: This could probably be better-integrated with the space manager
 var/global/datum/controller/process/weather/weather_master
 
 /datum/controller/process/weather
@@ -33,7 +33,7 @@ var/global/datum/controller/process/weather/weather_master
 		var/list/possible_weather_for_this_z = list()
 		for(var/V in existing_weather)
 			var/datum/weather/WE = V
-			if(WE.target_z == Z && WE.probability) //Another check so that it doesn't run extra weather
+			if(WE.target_level == Z && WE.probability) //Another check so that it doesn't run extra weather
 				possible_weather_for_this_z[WE] = WE.probability
 		var/datum/weather/W = pickweight(possible_weather_for_this_z)
 		run_weather(W.name)

code/controllers/configuration.dm

@@ -496,18 +496,6 @@
 				if("max_maint_drones")
 					config.max_maint_drones = text2num(value)
 
-				if("station_levels")
-					config.station_levels = text2numlist(value, ";")
-
-				if("admin_levels")
-					config.admin_levels = text2numlist(value, ";")
-
-				if("contact_levels")
-					config.contact_levels = text2numlist(value, ";")
-
-				if("player_levels")
-					config.player_levels = text2numlist(value, ";")
-
 				if("expected_round_length")
 					config.expected_round_length = MinutesToTicks(text2num(value))
 

code/controllers/master_controller.dm

@@ -52,7 +52,7 @@ var/global/pipe_processing_killed = 0
 	if(!config.disable_space_ruins)
 		var/timer = start_watch()
 		log_startup_progress("Creating random space levels...")
-		seedRuins(ZLEVEL_EMPTY, rand(0, 3), /area/space, space_ruins_templates)
+		seedRuins(level_name_to_num(EMPTY_AREA), rand(0, 3), /area/space, space_ruins_templates)
 		log_startup_progress("Loaded random space levels in [stop_watch(timer)]s.")
 
 		// We'll keep this around for the time when we finally expunge all

code/datums/cache/air_alarm.dm

@@ -15,8 +15,7 @@ var/global/datum/repository/air_alarm/air_alarm_repository = new()
 		alarms[++alarms.len] = passed_alarm.get_nano_data_console()
 	else
 		for(var/obj/machinery/alarm/alarm in (monitored_alarms ? monitored_alarms : air_alarms))
-			// TODO: Tie into space manager
-			if(!monitored_alarms && alarm.z != ZLEVEL_STATION && alarm.z != ZLEVEL_ASTEROID)
+			if(!monitored_alarms && !is_station_contact(alarm.z))
 				continue
 			alarms[++alarms.len] = alarm.get_nano_data_console()
 

code/datums/diseases/advance/advance.dm

@@ -406,8 +406,7 @@ var/list/advance_cures = 	list(
 			AD.Refresh()
 
 		for(var/mob/living/carbon/human/H in shuffle(living_mob_list))
-			// TODO: Tie into space manager
-			if(H.z != ZLEVEL_STATION)
+			if(!is_station_level(H.z))
 				continue
 			if(!H.HasDisease(D))
 				H.ForceContractDisease(D)

code/datums/spell.dm

@@ -67,10 +67,7 @@ var/list/spells = typesof(/obj/effect/proc_holder/spell) //needed for the badmin
 			caster.reset_view(0)
 			return 0
 
-	// TODO: Tie into space manager
-	if(user.z == ZLEVEL_CENTCOMM && !centcom_cancast) //Certain spells are not allowed on the centcom zlevel
-		return 0
-	if(user.z == ZLEVEL_CENTCOMM && ticker.mode.name == "ragin' mages")
+	if(is_admin_level(user.z) && (!centcom_cancast || ticker.mode.name == "ragin' mages")) //Certain spells are not allowed on the centcom zlevel
 		return 0
 
 	if(!skipcharge)
@@ -364,10 +361,7 @@ var/list/spells = typesof(/obj/effect/proc_holder/spell) //needed for the badmin
 	if(((!user.mind) || !(src in user.mind.spell_list)) && !(src in user.mob_spell_list))
 		return 0
 
-	// TODO: Tie into space manager
-	if(user.z == ZLEVEL_CENTCOMM && !centcom_cancast) //Certain spells are not allowed on the centcom zlevel
-		return 0
-	if(user.z == ZLEVEL_CENTCOMM && ticker.mode.name == "ragin' mages")
+	if(is_admin_level(user.z) && (!centcom_cancast || ticker.mode.name == "ragin' mages")) //Certain spells are not allowed on the centcom zlevel
 		return 0
 
 	switch(charge_type)

code/datums/weather/weather.dm

@@ -28,7 +28,7 @@
 
 	var/area_type = /area/space //Types of area to affect
 	var/list/impacted_areas = list() //Areas to be affected by the weather, calculated when the weather begins
-	var/target_z = ZLEVEL_STATION //The z-level to affect
+	var/target_level = MAIN_STATION //The z-level to affect
 
 	var/overlay_layer = 10 //Since it's above everything else, this is the layer used by default. 2 is below mobs and walls if you need to use that.
 	var/aesthetic = FALSE //If the weather has no purpose other than looks
@@ -52,13 +52,13 @@
 	stage = STARTUP_STAGE
 	for(var/V in get_areas(area_type))
 		var/area/A = V
-		if(A.z == target_z)
+		if(is_on_level_name(A,target_level))
 			impacted_areas |= A
 	weather_duration = rand(weather_duration_lower, weather_duration_upper)
 	update_areas()
 	for(var/V in player_list)
 		var/mob/M = V
-		if(M.z == target_z)
+		if(is_on_level_name(M,target_level))
 			if(telegraph_message)
 				to_chat(M, telegraph_message)
 			if(telegraph_sound)
@@ -72,7 +72,7 @@
 	update_areas()
 	for(var/V in player_list)
 		var/mob/M = V
-		if(M.z == target_z)
+		if(is_on_level_name(M,target_level))
 			if(weather_message)
 				to_chat(M, weather_message)
 			if(weather_sound)
@@ -87,7 +87,7 @@
 	update_areas()
 	for(var/V in player_list)
 		var/mob/M = V
-		if(M.z == target_z)
+		if(is_on_level_name(M,target_level))
 			if(end_message)
 				to_chat(M, end_message)
 			if(end_sound)
@@ -102,7 +102,7 @@
 	update_areas()
 
 /datum/weather/proc/can_impact(mob/living/L) //Can this weather impact a mob?
-	if(L.z != target_z)
+	if(!is_on_level_name(L,target_level))
 		return
 	if(immunity_type in L.weather_immunities)
 		return

code/datums/weather/weather_types.dm

@@ -1,5 +1,4 @@
 //Different types of weather.
-// TODO: Tie into space manager
 
 /datum/weather/floor_is_lava //The Floor is Lava: Makes all turfs damage anyone on them unless they're standing on a solid object.
 	name = "the floor is lava"
@@ -17,7 +16,7 @@
 	end_duration = 0
 
 	area_type = /area
-	target_z = ZLEVEL_STATION
+	target_level = MAIN_STATION
 
 	overlay_layer = 2 //Covers floors only
 	immunity_type = "lava"
@@ -51,7 +50,7 @@
 	end_duration = 0
 
 	area_type = /area
-	target_z = ZLEVEL_STATION
+	target_level = MAIN_STATION
 
 /datum/weather/advanced_darkness/update_areas()
 	for(var/V in impacted_areas)
@@ -88,7 +87,7 @@
 	end_overlay = "light_ash"
 
 	area_type = /area/mine
-	target_z = ZLEVEL_ASTEROID
+	target_level = MINING
 
 	immunity_type = "ash"
 

code/game/area/Space Station 13 areas.dm

@@ -67,8 +67,7 @@ var/list/teleportlocs = list()
 		if(AR.no_teleportlocs) continue
 		if(teleportlocs.Find(AR.name)) continue
 		var/turf/picked = safepick(get_area_turfs(AR.type))
-		// TODO: Tie into space manager
-		if(picked && (picked.z == ZLEVEL_STATION))
+		if(picked && is_station_level(picked.z))
 			teleportlocs += AR.name
 			teleportlocs[AR.name] = AR
 

code/game/atoms.dm

@@ -42,8 +42,7 @@
 	if(!T)
 		return 0
 
-	// TODO: Tie into space manager
-	if(T.z != ZLEVEL_CENTCOMM)//if not, don't bother
+	if(!is_admin_level(T.z))//if not, don't bother
 		return 0
 
 	//check for centcomm shuttles
@@ -60,8 +59,7 @@
 	if(!T)
 		return 0
 
-	// TODO: Tie into space manager
-	if(T.z != ZLEVEL_CENTCOMM)//if not, don't bother
+	if(!is_admin_level(T.z))//if not, don't bother
 		return 0
 
 	if(istype(T.loc, /area/shuttle/syndicate_elite) || istype(T.loc, /area/syndicate_mothership))

code/game/gamemodes/antag_spawner.dm

@@ -80,8 +80,7 @@
 	var/mob/living/demon_type = /mob/living/simple_animal/slaughter
 
 /obj/item/weapon/antag_spawner/slaughter_demon/attack_self(mob/user as mob)
-	// TODO: Tie into space manager
-	if(user.z == ZLEVEL_CENTCOMM)//this is to make sure the wizard does NOT summon a demon from the Den..
+	if(level_blocks_magic(user.z))//this is to make sure the wizard does NOT summon a demon from the Den..
 		to_chat(user, "<span class='notice'>You should probably wait until you reach the station.</span>")
 		return
 

code/game/gamemodes/blob/blob.dm

@@ -118,8 +118,7 @@ var/list/blob_nodes = list()
 		if(directory[ckey(blob.key)])
 			blob_client = directory[ckey(blob.key)]
 			location = get_turf(C)
-			// TODO: Tie into space manager
-			if(location.z != ZLEVEL_STATION || istype(location, /turf/space))
+			if(!is_station_level(location.z) || istype(location, /turf/space))
 				if(!warned)
 					to_chat(C, "<span class='userdanger'>You feel ready to burst, but this isn't an appropriate place!  You must return to the station!</span>")
 					message_admins("[key_name_admin(C)] was in space when the blobs burst, and will die if he doesn't return to the station.")

code/game/gamemodes/blob/blob_report.dm

@@ -23,8 +23,7 @@
 			var/nukecode = rand(10000, 99999)
 			for(var/obj/machinery/nuclearbomb/bomb in world)
 				if(bomb && bomb.r_code)
-					// TODO: Tie into space manager
-					if(bomb.z == ZLEVEL_STATION)
+					if(is_station_level(bomb.z))
 						bomb.r_code = nukecode
 
 			intercepttext += "<FONT size = 3><B>Nanotrasen Update</B>: Biohazard Alert.</FONT><HR>"

code/game/gamemodes/borer/borer.dm

@@ -35,7 +35,7 @@
 		return 0 // not enough candidates for borer
 
 	for(var/obj/machinery/atmospherics/unary/vent_pump/v in world)
-		if(!v.welded && (v.z in config.station_levels))
+		if(!v.welded && is_station_level(v.z))
 			found_vents.Add(v)
 
 	// for each 2 possible borers, add one borer and one host
@@ -156,4 +156,4 @@
 
 	greet_borer(borer)
 
-	return
+	return

code/game/gamemodes/cult/runes.dm

@@ -14,8 +14,7 @@ var/list/sacrificed = list()
 	for(var/obj/effect/rune/R in world)
 		if(R == src)
 			continue
-		// TODO: Tie into space manager
-		if(R.word1 == cultwords["travel"] && R.word2 == cultwords["self"] && R.word3 == key && R.z != ZLEVEL_CENTCOMM)
+		if(R.word1 == cultwords["travel"] && R.word2 == cultwords["self"] && R.word3 == key && is_teleport_allowed(R.z))
 			index++
 			allrunesloc.len = index
 			allrunesloc[index] = R.loc

code/game/gamemodes/events.dm

@@ -2,8 +2,7 @@
 	//command_announcement.Announce("Unidentified lifesigns detected coming aboard [station_name()]. Secure any exterior access, including ducting and ventilation.", "Lifesign Alert", new_sound = 'sound/AI/aliens.ogg')
 	var/list/vents = list()
 	for(var/obj/machinery/atmospherics/unary/vent_pump/temp_vent in machines)
-		// TODO: Tie into space manager
-		if((temp_vent.loc.z in config.station_levels) && !temp_vent.welded)
+		if(is_station_level(temp_vent.loc.z) && !temp_vent.welded)
 			if(temp_vent.parent.other_atmosmch.len > 50) // Stops Aliens getting stuck in small networks. See: Security, Virology
 				vents += temp_vent
 

code/game/gamemodes/game_mode.dm

@@ -427,8 +427,7 @@ proc/get_nt_opposed()
 /proc/get_nuke_code()
 	var/nukecode = "ERROR"
 	for(var/obj/machinery/nuclearbomb/bomb in world)
-		// TODO: Tie into space manager
-		if(bomb && bomb.r_code && bomb.z == ZLEVEL_STATION)
+		if(bomb && bomb.r_code && is_station_level(bomb.z))
 			nukecode = bomb.r_code
 	return nukecode
 
@@ -452,8 +451,7 @@ proc/get_nt_opposed()
 			text += " <span class='boldannounce'>died</span>"
 		else
 			text += " <span class='greenannounce'>survived</span>"
-		if(fleecheck && ply.current.z > ZLEVEL_STATION)
-			// TODO: Tie into space manager
+		if(fleecheck && !is_station_level(ply.current.z))
 			text += " while <span class='boldannounce'>fleeing the station</span>"
 		if(ply.current.real_name != ply.name)
 			text += " as <b>[ply.current.real_name]</b>"

code/game/gamemodes/gameticker.dm

@@ -266,8 +266,7 @@ var/round_start_time = 0
 				M.client.screen += cinematic
 			if(M.stat != DEAD)
 				var/turf/T = get_turf(M)
-				// TODO: Tie into space manager
-				if(T && T.z == ZLEVEL_STATION)
+				if(T && is_station_level(T.z))
 					M.death(0) //no mercy
 
 	//Now animate the cinematic

code/game/gamemodes/malfunction/Malf_Modules.dm

@@ -35,8 +35,7 @@
 	src.verbs -= /mob/living/silicon/ai/proc/upgrade_turrets
 	for(var/obj/machinery/porta_turret/turret in machines)
 		var/turf/T = get_turf(turret)
-		// TODO: Tie into space manager
-		if(T.z in config.station_levels)
+		if(is_station_level(T.z))
 			turret.health += 30
 			turret.eprojectile = /obj/item/projectile/beam/laser/heavylaser //Once you see it, you will know what it means to FEAR.
 			turret.eshot_sound = 'sound/weapons/lasercannonfire.ogg'
@@ -60,7 +59,7 @@
 		return
 
 	for(var/obj/machinery/door/D in airlocks)
-		if(D.z != ZLEVEL_STATION)
+		if(!is_station_level(D.z))
 			continue
 		spawn(0)
 			D.hostile_lockdown(src)
@@ -146,7 +145,7 @@
 		return
 
 	for(var/obj/machinery/firealarm/F in machines)
-		if(F.z != ZLEVEL_STATION)
+		if(!is_station_level(F.z))
 			continue
 		F.emagged = 1
 	to_chat(src, "<span class='notice'>All thermal sensors on the station have been disabled. Fire alerts will no longer be recognized.</span>")
@@ -171,7 +170,7 @@
 		return
 
 	for(var/obj/machinery/alarm/AA in machines)
-		if(AA.z != ZLEVEL_STATION)
+		if(!is_station_level(AA.z))
 			continue
 		AA.emagged = 1
 	to_chat(src, "<span class='notice'>All air alarm safeties on the station have been overriden. Air alarms may now use the Flood environmental mode.")
@@ -525,4 +524,4 @@
 		if(href_list["showdesc"])
 			if(AM.mod_pick_name == href_list["showdesc"])
 				temp = AM.description
-	use(usr)
+	use(usr)

code/game/gamemodes/malfunction/malfunction.dm

@@ -141,8 +141,7 @@
 /datum/game_mode/proc/check_ai_loc()
 	for(var/datum/mind/AI_mind in malf_ai)
 		var/turf/ai_location = get_turf(AI_mind.current)
-		// TODO: Tie into space manager
-		if(ai_location && (ai_location.z == ZLEVEL_STATION))
+		if(ai_location && is_station_level(ai_location.z))
 			return 1
 	return 0
 

code/game/gamemodes/meteor/meteors.dm

@@ -36,8 +36,7 @@
 	var/Me = pickweight(meteortypes)
 	var/obj/effect/meteor/M = new Me(pickedstart)
 	M.dest = pickedgoal
-	// TODO: Tie into space manager
-	M.z_original = ZLEVEL_STATION
+	M.z_original = level_name_to_num(MAIN_STATION)
 	spawn(0)
 		walk_towards(M, M.dest, 1)
 	return
@@ -103,7 +102,6 @@
 	var/dropamt = 2
 
 /obj/effect/meteor/Move()
-	// TODO: Tie into space manager
 	if(z != z_original || loc == dest)
 		qdel(src)
 		return

code/game/gamemodes/miniantags/borer/borer_event.dm

@@ -17,8 +17,7 @@
 /datum/event/borer_infestation/start()
 	var/list/vents = list()
 	for(var/obj/machinery/atmospherics/unary/vent_pump/temp_vent in world)
-		// TODO: Tie into space manager
-		if((temp_vent.loc.z in config.station_levels) && !temp_vent.welded)
+		if(is_station_level(temp_vent.loc.z) && !temp_vent.welded)
 			//Stops cortical borers getting stuck in small networks. See: Security, Virology
 			if(temp_vent.parent.other_atmosmch.len > 50)
 				vents += temp_vent

code/game/gamemodes/miniantags/bot_swarm/swarmer.dm

@@ -290,14 +290,13 @@
 /mob/living/simple_animal/hostile/swarmer/proc/DisperseTarget(var/mob/living/target)
 	if(target != src)
 		to_chat(src, "<span class='info'>Attempting to remove this being from our presence.</span>")
-		// TODO: Tie into space manager
-		if(src.z != ZLEVEL_STATION)
+		if(!is_station_level(src.z))
 			to_chat(src, "<span class='warning'>Our bluespace transceiver cannot locate a viable bluespace link, our teleportation abilities are useless in this area.</span>")
 			return
 		if(do_mob(src, target, 30))
 			var/cycle
 			for(cycle=0,cycle<100,cycle++)
-				var/random_location = locate(rand(37,202),rand(75,192),ZLEVEL_STATION)//Drunk dial a turf in the general ballpark of the station
+				var/random_location = locate(rand(37,202),rand(75,192),level_name_to_num(MAIN_STATION))//Drunk dial a turf in the general ballpark of the station
 				if(istype(random_location, /turf/simulated/floor))
 					var/turf/simulated/floor/F = random_location
 					if(F.air)

code/game/gamemodes/nations/nations.dm

@@ -142,8 +142,7 @@ datum/game_mode/nations
 
 /datum/game_mode/nations/proc/remove_access()
 	for(var/obj/machinery/door/airlock/W in airlocks)
-		// TODO: Tie into space manager
-		if(W.z in config.station_levels)
+		if(is_station_level(W.z))
 			W.req_access = list()
 
 

code/game/gamemodes/newobjective.dm

@@ -1358,8 +1358,7 @@ datum
 					var/turf/T = get_turf(target.current)
 					if(target.current.stat == 2)
 						return 1
-					// TODO: Tie into space manager
-					else if((T) && !(T.z in config.station_levels))//If they leave the station they count as dead for this
+					else if((T) && !is_station_level(T.z))//If they leave the station they count as dead for this
 						return 2
 					else
 						return 0

code/game/gamemodes/nuclear/nuclear_challenge.dm

@@ -19,8 +19,7 @@
 	if(player_list.len < MIN_CHALLENGE_PLAYERS)
 		to_chat(user, "The enemy crew is too small to be worth declaring war on.")
 		return
-	// TODO: Tie into space manager
-	if(user.z != ZLEVEL_CENTCOMM)
+	if(!is_admin_level(user.z))
 		to_chat(user, "You have to be at your base to use this.")
 		return
 

code/game/gamemodes/nuclear/nuclearbomb.dm

@@ -353,8 +353,7 @@ var/bomb_set
 
 	var/off_station = 0
 	var/turf/bomb_location = get_turf(src)
-	// TODO: Tie into space manager
-	if( bomb_location && (bomb_location.z in config.station_levels) )
+	if( bomb_location && is_station_level(bomb_location.z) )
 		if( (bomb_location.x < (128-NUKERANGE)) || (bomb_location.x > (128+NUKERANGE)) || (bomb_location.y < (128-NUKERANGE)) || (bomb_location.y > (128+NUKERANGE)) )
 			off_station = 1
 	else
@@ -364,8 +363,7 @@ var/bomb_set
 		if(ticker.mode && ticker.mode.name == "nuclear emergency")
 			var/obj/docking_port/mobile/syndie_shuttle = shuttle_master.getShuttle("syndicate")
 			if(syndie_shuttle)
-				// TODO: Tie into space manager
-				ticker.mode:syndies_didnt_escape = (syndie_shuttle.z > ZLEVEL_STATION ? 0 : 1)	//muskets will make me change this, but it will do for now
+				ticker.mode:syndies_didnt_escape = is_station_level(syndie_shuttle.z)
 			ticker.mode:nuke_off_station = off_station
 		ticker.station_explosion_cinematic(off_station,null)
 		if(ticker.mode)
@@ -403,8 +401,7 @@ var/bomb_set
 
 /obj/item/weapon/disk/nuclear/process()
 	var/turf/disk_loc = get_turf(src)
-	// TODO: Tie into space manager
-	if(disk_loc.z != ZLEVEL_STATION && disk_loc.z != ZLEVEL_CENTCOMM)
+	if(!is_secure_level(disk_loc.z))
 		var/holder = get(src, /mob)
 		if(holder)
 			to_chat(holder, "<span class='danger'>You can't help but feel that you just lost something back there...</span>")

code/game/gamemodes/objective.dm

@@ -77,7 +77,6 @@ var/list/potential_theft_objectives=subtypesof(/datum/theft_objective) \
 
 	check_completion()
 		if(target && target.current)
-			// TODO: Tie into space manager
 			if(target.current.stat == DEAD || issilicon(target.current) || isbrain(target.current) || !target.current.ckey) //Borgs/brains/AIs count as dead for traitor objectives. --NeoFite
 				return 1
 			return 0
@@ -110,8 +109,7 @@ var/list/potential_theft_objectives=subtypesof(/datum/theft_objective) \
 			if(target.current.stat == DEAD || !ishuman(target.current) || !target.current.ckey || !target.current.client)
 				return 1
 			var/turf/T = get_turf(target.current)
-			// TODO: Tie into space manager
-			if(T && !(T.z in config.station_levels))			//If they leave the station they count as dead for this
+			if(T && !is_station_level(T.z))			//If they leave the station they count as dead for this
 				return 2
 			return 0
 		return 1
@@ -146,8 +144,7 @@ var/list/potential_theft_objectives=subtypesof(/datum/theft_objective) \
 				if(target in ticker.mode:head_revolutionaries)
 					return 1
 			var/turf/T = get_turf(target.current)
-			// TODO: Tie into space manager
-			if(T && !(T.z in config.station_levels))			//If they leave the station they count as dead for this
+			if(T && !is_station_level(T.z))			//If they leave the station they count as dead for this
 				rval = 2
 			return 0
 		return rval
@@ -173,12 +170,9 @@ var/list/potential_theft_objectives=subtypesof(/datum/theft_objective) \
 
 	check_completion()
 		if(target && target.current)
-			// TODO: Tie into space manager
 			if(target.current.stat == DEAD || issilicon(target.current) || isbrain(target.current) || !target.current.ckey) //Borgs/brains/AIs count as dead for traitor objectives. --NeoFite
 				return 1
-			// TODO: Tie into space manager
-			var/turf/target_location = get_turf(target.current)
-			if(target_location.z in config.admin_levels) //No hiding in lockers and cheezing greentext.
+			if(is_admin_level(target.current.z))
 				return 0
 		return 1
 
@@ -568,8 +562,7 @@ var/list/potential_theft_objectives=subtypesof(/datum/theft_objective) \
 
 	check_completion()
 		if(target && target.current)
-			// TODO: Tie into space manager
-			if(target.current.stat == DEAD || target.current.z > ZLEVEL_DERELICT || !target.current.ckey)
+			if(target.current.stat == DEAD || is_away_level(target.current.z) || !target.current.ckey)
 				return 1
 			return 0
 		return 1

code/game/gamemodes/revolution/revolution.dm

@@ -314,8 +314,7 @@
 /datum/game_mode/revolution/proc/check_heads_victory()
 	for(var/datum/mind/rev_mind in head_revolutionaries)
 		var/turf/T = get_turf(rev_mind.current)
-		// TODO: Tie into space manager
-		if((rev_mind) && (rev_mind.current) && (rev_mind.current.stat != 2) && rev_mind.current.client && T && (T.z == ZLEVEL_STATION))
+		if((rev_mind) && (rev_mind.current) && (rev_mind.current.stat != DEAD) && rev_mind.current.client && T && is_station_level(T.z))
 			if(ishuman(rev_mind.current))
 				return 0
 	return 1

code/game/gamemodes/scoreboard.dm

@@ -21,14 +21,12 @@
 
 	// Who is alive/dead, who escaped
 	for(var/mob/living/silicon/ai/I in mob_list)
-		// TODO: Tie into space manager
-		if(I.stat == DEAD && (I.z in config.station_levels))
+		if(I.stat == DEAD && is_station_level(I.z))
 			score_deadaipenalty++
 			score_deadcrew++
 
 	for(var/mob/living/carbon/human/I in mob_list)
-		// TODO: Tie into space manager
-		if(I.stat == DEAD && (I.z in config.station_levels))
+		if(I.stat == DEAD && is_station_level(I.z))
 			score_deadcrew++
 
 		if(I && I.mind)
@@ -81,9 +79,7 @@
 
 	// Check station's power levels
 	for(var/obj/machinery/power/apc/A in apcs)
-		// TODO: Tie into space manager
-		if(!(A.z in config.station_levels)) continue
-
+		if(!is_station_level(A.z)) continue
 		for(var/obj/item/weapon/stock_parts/cell/C in A.contents)
 			if(C.charge < 2300)
 				score_powerloss++ //200 charge leeway
@@ -91,8 +87,7 @@
 
 	// Check how much uncleaned mess is on the station
 	for(var/obj/effect/decal/cleanable/M in world)
-		// TODO: Tie into space manager
-		if(!(M.z in config.station_levels)) continue
+		if(!is_station_level(M.z)) continue
 		if(istype(M, /obj/effect/decal/cleanable/blood/gibs))
 			score_mess += 3
 

code/game/gamemodes/xenos/xenos.dm

@@ -122,8 +122,7 @@
 			command_announcement.Announce("The aliens have nearly succeeded in capturing the station and exterminating the crew. Activate the nuclear failsafe to stop the alien threat once and for all. The Nuclear Authentication Code is [get_nuke_code()] ", "Alien Lifeform Alert")
 			set_security_level("gamma")
 			var/obj/machinery/door/airlock/vault/V = locate(/obj/machinery/door/airlock/vault) in world
-			// TODO: Tie into space manager
-			if(V && (V.z in config.station_levels))
+			if(V && is_station_level(V.z))
 				V.locked = 0
 				V.update_icon()
 		return ..()
@@ -143,8 +142,7 @@
 	var/list/livingplayers = list()
 	for(var/mob/M in player_list)
 		var/turf/T = get_turf(M)
-		// TODO: Tie into space manager
-		if((M) && (M.stat != 2) && M.client && T && ((T.z in config.station_levels) || shuttle_master.emergency.mode >= SHUTTLE_ESCAPE && ((T.z in config.station_levels) || (T.z in config.admin_levels))))
+		if((M) && (M.stat != DEAD) && M.client && T && (is_station_level(T.z) || shuttle_master.emergency.mode >= SHUTTLE_ESCAPE && is_secure_level(T.z)))
 			if(ishuman(M))
 				livingplayers += 1
 	return livingplayers.len

code/game/machinery/alarm.dm

@@ -769,7 +769,6 @@
 	var/turf/pos = get_turf(src)
 	data["x"] = pos.x
 	data["y"] = pos.y
-	// TODO: Tie into space manager
 	data["z"] = pos.z
 	return data
 

code/game/machinery/atmoalter/area_atmos_computer.dm

@@ -113,7 +113,6 @@
 			scrubber.update_icon()
 
 	proc/validscrubber( var/obj/machinery/portable_atmospherics/scrubber/huge/scrubber as obj )
-		// TODO: Tie into space manager
 		if(!isobj(scrubber) || get_dist(scrubber.loc, src.loc) > src.range || scrubber.loc.z != src.loc.z)
 			return 0
 

code/game/machinery/camera/camera.dm

@@ -43,7 +43,7 @@
 
 /obj/machinery/camera/initialize()
 	..()
-	if(z == ZLEVEL_STATION && prob(3) && !start_active)
+	if(is_station_level(z) && prob(3) && !start_active)
 		toggle_cam()
 
 /obj/machinery/camera/Destroy()

code/game/machinery/camera/tracking.dm

@@ -1,10 +1,7 @@
 /mob/living/silicon/ai/proc/InvalidTurf(turf/T as turf)
 	if(!T)
 		return 1
-	// TODO: Tie into space manager
-	if((T.z in config.admin_levels))
-		return 1
-	if(T.z > MAX_Z)
+	if(!is_level_reachable(T.z))
 		return 1
 	return 0
 

code/game/machinery/computer/camera.dm

@@ -75,8 +75,7 @@
 
 	var/list/cameras = list()
 	for(var/obj/machinery/camera/C in cameranet.cameras)
-		// TODO: Tie into space manager
-		if((z > MAX_Z || C.z > MAX_Z) && (C.z != z)) //can only recieve away mission cameras on away missions
+		if((is_away_level(src.z) || is_away_level(C.z)) && !atoms_share_level(C, src)) //can only recieve away mission cameras on away missions
 			continue
 		if(!can_access_camera(C))
 			continue

code/game/machinery/computer/communications.dm

@@ -54,8 +54,7 @@
 	if(..(href, href_list))
 		return 1
 
-	// TODO: Tie into space manager
-	if((!(src.z in config.station_levels) && !(src.z in config.admin_levels)))
+	if(!is_secure_level(src.z))
 		to_chat(usr, "<span class='warning'>Unable to establish a connection: You're too far away from the station!</span>")
 		return 1
 
@@ -304,8 +303,7 @@
 	if(stat & (NOPOWER|BROKEN))
 		return
 
-	// TODO: Tie into space manager
-	if(!(src.z in list(ZLEVEL_STATION, ZLEVEL_CENTCOMM)))
+	if(!is_secure_level(src.z))
 		to_chat(user, "<span class='warning'>Unable to establish a connection: You're too far away from the station!</span>")
 		return
 

code/game/machinery/computer/honkputer.dm

@@ -20,8 +20,7 @@
 /obj/machinery/computer/HONKputer/Topic(href, href_list)
 	if(..())
 		return 1
-	// TODO: Tie into space manager
-	if(!(src.z in config.station_levels))
+	if(is_away_level(src.z))
 		to_chat(usr, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 		return
 	usr.set_machine(src)
@@ -69,8 +68,7 @@
 /obj/machinery/computer/HONKputer/attack_hand(var/mob/user as mob)
 	if(..())
 		return
-	// TODO: Tie into space manager
-	if(src.z > ZLEVEL_DERELICT)
+	if(is_away_level(src.z))
 		to_chat(user, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 		return
 

code/game/machinery/computer/law.dm

@@ -29,8 +29,7 @@
 
 
 	attackby(obj/item/weapon/O as obj, mob/user as mob, params)
-		// TODO: Tie into space manager
-		if(user.z > ZLEVEL_DERELICT)
+		if(is_away_level(user.z))
 			to_chat(user, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 			return
 		if(istype(O, /obj/item/weapon/aiModule))

code/game/machinery/computer/pod.dm

@@ -208,7 +208,9 @@
 			id_tags -= ident_tag
 		if(href_list["dstele"])
 			var/choices = list(0)
-			choices += accessable_z_levels
+			var/list/reachable_levels = levels_by_trait(REACHABLE)
+			for(var/datum/space_level/S in reachable_levels)
+				choices += S.zpos
 			var/obj/machinery/computer/pod/deathsquad/D = src
 			var/input = input("Enter the destination Z-Level. The mechs will arrive from the East. Leave 0 if you don't want to set a specific ZLevel", "Mass Driver Controls", 0) in choices
 			D.teleporter_dest = input
@@ -362,4 +364,4 @@
 		AM.dir = 8
 		var/atom/target = get_edge_target_turf(AM, AM.dir)
 		AM.throw_at(target, 50, 1)
-	return
+	return

code/game/machinery/computer/prisoner.dm

@@ -65,8 +65,7 @@
 				health_display = "DEAD"
 			else if(total_loss)
 				health_display = "HURT ([total_loss])"
-			// TODO: Tie into space manager
-			if((M.z in config.station_levels) && !istype(M.loc, /turf/space))
+			if(is_station_level(M.z) && !istype(M.loc, /turf/space))
 				loc_display = "[get_area(M)]"
 			dat += "ID: [T.id] <BR>Subject: [M] <BR>Location: [loc_display] <BR>Health: [health_display] <BR>"
 			dat += "<A href='?src=\ref[src];warn=\ref[T]'>(<font color=red><i>Message Holder</i></font>)</A> |<BR>"

code/game/machinery/computer/security.dm

@@ -41,8 +41,7 @@
 /obj/machinery/computer/secure_data/attack_hand(mob/user as mob)
 	if(..())
 		return
-	// TODO: Tie into space manager
-	if(src.z > ZLEVEL_DERELICT)
+	if(is_away_level(src.z))
 		to_chat(user, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 		return
 	var/dat

code/game/machinery/computer/skills.dm

@@ -41,8 +41,7 @@
 	if(..())
 		return
 
-	// TODO: Tie into space manager
-	if(src.z > ZLEVEL_DERELICT)
+	if(is_away_level(src.z))
 		to_chat(user, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 		return
 	var/dat

code/game/machinery/firealarm.dm

@@ -295,9 +295,7 @@ FIRE ALARM
 		pixel_x = (dir & 3)? 0 : (dir == 4 ? -24 : 24)
 		pixel_y = (dir & 3)? (dir ==1 ? -24 : 24) : 0
 
-	// TODO: Tie into space manager
-	// also hwat
-	if(z == ZLEVEL_STATION || ZLEVEL_ASTEROID == 5)
+	if(is_station_contact(src.z))
 		if(security_level)
 			src.overlays += image('icons/obj/monitors.dmi', "overlay_[get_security_level()]")
 		else

code/game/machinery/supply_display.dm

@@ -5,8 +5,7 @@
 /obj/machinery/status_display/supply_display/update()
 	if(!..() && mode == STATUS_DISPLAY_CUSTOM)
 		if(shuttle_master.supply.mode == SHUTTLE_IDLE)
-			// TODO: Tie into space manager
-			if(shuttle_master.supply.z == ZLEVEL_STATION)
+			if(is_station_level(shuttle_master.supply.z))
 				message1 = "CARGO"
 				message2 = "Docked"
 			else

code/game/machinery/telecomms/broadcaster.dm

@@ -440,7 +440,7 @@ var/message_delay = 0 // To make sure restarting the recentmessages list is kept
 	if(data == 1)
 		for(var/obj/item/device/radio/intercom/R in connection.devices["[RADIO_CHAT]"])
 			var/turf/position = get_turf(R)
-			// TODO: Tie into space manager
+			// TODO: Make the radio system cooperate with the space manager
 			if(position && position.z == level)
 				receive |= R.send_hear(display_freq, level)
 
@@ -453,7 +453,7 @@ var/message_delay = 0 // To make sure restarting the recentmessages list is kept
 			if(istype(R, /obj/item/device/radio/headset))
 				continue
 			var/turf/position = get_turf(R)
-			// TODO: Tie into space manager
+			// TODO: Make the radio system cooperate with the space manager
 			if(position && position.z == level)
 				receive |= R.send_hear(display_freq)
 
@@ -465,7 +465,7 @@ var/message_delay = 0 // To make sure restarting the recentmessages list is kept
 			var/datum/radio_frequency/antag_connection = radio_controller.return_frequency(freq)
 			for(var/obj/item/device/radio/R in antag_connection.devices["[RADIO_CHAT]"])
 				var/turf/position = get_turf(R)
-				// TODO: Tie into space manager
+				// TODO: Make the radio system cooperate with the space manager
 				if(position && position.z == level)
 					receive |= R.send_hear(freq)
 
@@ -475,7 +475,7 @@ var/message_delay = 0 // To make sure restarting the recentmessages list is kept
 	else
 		for(var/obj/item/device/radio/R in connection.devices["[RADIO_CHAT]"])
 			var/turf/position = get_turf(R)
-			// TODO: Tie into space manager
+			// TODO: Make the radio system cooperate with the space manager
 			if(position && position.z == level)
 				receive |= R.send_hear(display_freq)
 
@@ -605,7 +605,7 @@ var/message_delay = 0 // To make sure restarting the recentmessages list is kept
 /atom/proc/test_telecomms()
 	var/datum/signal/signal = src.telecomms_process()
 	var/turf/position = get_turf(src)
-	// TODO: Tie into space manager
+	// TODO: Make the radio system cooperate with the space manager
 	return (position.z in signal.data["level"]) && signal.data["done"]
 
 /atom/proc/telecomms_process(var/do_sleep = 1)
@@ -624,7 +624,7 @@ var/message_delay = 0 // To make sure restarting the recentmessages list is kept
 		"type" = 4, // determines what type of radio input it is: test broadcast
 		"reject" = 0,
 		"done" = 0,
-		// TODO: Tie into space manager
+		// TODO: Make the radio system cooperate with the space manager
 		"level" = pos.z // The level it is being broadcasted at.
 	)
 	signal.frequency = PUB_FREQ// Common channel

code/game/machinery/telecomms/machine_interactions.dm

@@ -180,12 +180,12 @@
 	var/turf/position = get_turf(src)
 
 	// Toggle on/off getting signals from the station or the current Z level
-	// TODO: Tie into space manager
-	if(src.listening_level == ZLEVEL_STATION) // equals the station
+	// TODO: Could work with the space manager better
+	if(is_station_level(src.listening_level)) // equals the station
 		src.listening_level = position.z
 		return 1
-	else if(position.z == ZLEVEL_TELECOMMS)
-		src.listening_level = ZLEVEL_STATION
+	else if(level_boosts_signal(position.z))
+		src.listening_level = level_name_to_num(MAIN_STATION)
 		return 1
 	return 0
 
@@ -234,8 +234,8 @@
 
 /obj/machinery/telecomms/relay/Options_Menu()
 	var/dat = ""
-	if(src.z == ZLEVEL_TELECOMMS)
-		dat += "<br>Signal Locked to Station: <A href='?src=\ref[src];change_listening=1'>[listening_level == ZLEVEL_STATION ? "TRUE" : "FALSE"]</a>"
+	if(level_boosts_signal(src.z))
+		dat += "<br>Signal Locked to Station: <A href='?src=\ref[src];change_listening=1'>[is_station_level(listening_level) ? "TRUE" : "FALSE"]</a>"
 	dat += "<br>Broadcasting: <A href='?src=\ref[src];broadcast=1'>[broadcasting ? "YES" : "NO"]</a>"
 	dat += "<br>Receiving:    <A href='?src=\ref[src];receive=1'>[receiving ? "YES" : "NO"]</a>"
 	return dat

code/game/machinery/telecomms/telecomunications.dm

@@ -56,7 +56,7 @@ var/global/list/obj/machinery/telecomms/telecomms_list = list()
 			continue
 		if(amount && send_count >= amount)
 			break
-		// TODO: Tie into space manager
+			// TODO: Make the radio system cooperate with the space manager
 		if(machine.loc.z != listening_level)
 			if(long_range_link == 0 && machine.long_range_link == 0)
 				continue
@@ -115,7 +115,7 @@ var/global/list/obj/machinery/telecomms/telecomms_list = list()
 	if(!listening_level)
 		//Defaults to our Z level!
 		var/turf/position = get_turf(src)
-		// TODO: Tie into space manager
+		// TODO: Make the radio system cooperate with the space manager
 		listening_level = position.z
 
 /obj/machinery/telecomms/initialize()
@@ -141,7 +141,7 @@ var/global/list/obj/machinery/telecomms/telecomms_list = list()
 /obj/machinery/telecomms/proc/add_link(var/obj/machinery/telecomms/T)
 	var/turf/position = get_turf(src)
 	var/turf/T_position = get_turf(T)
-	// TODO: Tie into space manager
+	// TODO: Make the radio system cooperate with the space manager
 	if((position.z == T_position.z) || (src.long_range_link && T.long_range_link))
 		for(var/x in autolinkers)
 			if(T.autolinkers.Find(x))

code/game/machinery/teleporter.dm

@@ -182,8 +182,7 @@
 			var/turf/T = get_turf(R)
 			if(!T)
 				continue
-			// TODO: Tie into space manager
-			if((T.z in config.admin_levels) || T.z > ZLEVEL_EMPTY)
+			if(!is_teleport_allowed(T.z))
 				continue
 			if(R.syndicate == 1 && emagged == 0)
 				continue
@@ -199,13 +198,12 @@
 				continue
 			else
 				var/mob/M = I.loc
-				if(M.stat == 2)
+				if(M.stat == DEAD)
 					if(M.timeofdeath + 6000 < world.time)
 						continue
 				var/turf/T = get_turf(M)
 				if(!T)	continue
-				// TODO: Tie into space manager
-				if((T.z in config.admin_levels))	continue
+				if(!is_teleport_allowed(T.z))	continue
 				var/tmpname = M.real_name
 				if(areaindex[tmpname])
 					tmpname = "[tmpname] ([++areaindex[tmpname]])"
@@ -227,8 +225,7 @@
 			var/turf/T = get_turf(R)
 			if(!T || !R.teleporter_hub || !R.teleporter_console)
 				continue
-			// TODO: Tie into space manager
-			if((T.z in config.admin_levels) || T.z > ZLEVEL_EMPTY)
+			if(!is_teleport_allowed(T.z))
 				continue
 			var/tmpname = T.loc.name
 			if(areaindex[tmpname])
@@ -323,7 +320,7 @@
 	return power_station
 
 /obj/machinery/teleport/hub/Bumped(M as mob|obj)
-	if(z == ZLEVEL_CENTCOMM && !admin_usage)
+	if(!is_teleport_allowed(z) && !admin_usage)
 		to_chat(M, "You can't use this here.")
 		return
 	if(power_station && power_station.engaged && !panel_open)
@@ -401,7 +398,7 @@
 /obj/machinery/teleport/perma/Bumped(M as mob|obj)
 	if(stat & (BROKEN|NOPOWER))
 		return
-	if(z == ZLEVEL_CENTCOMM)
+	if(!is_teleport_allowed(z))
 		to_chat(M, "You can't use this here.")
 		return
 	if(target && !recalibrating && !panel_open)

code/game/mecha/equipment/tools/tools.dm

@@ -382,8 +382,7 @@
 	range = RANGED
 
 	action(atom/target)
-		// TODO: Tie into space manager
-		if(!action_checks(target) || (src.loc.z in config.admin_levels)) return
+		if(!action_checks(target) || !is_teleport_allowed(src.loc.z)) return
 		var/turf/T = get_turf(target)
 		if(T)
 			set_ready_state(0)
@@ -404,8 +403,7 @@
 
 
 	action(atom/target)
-		// TODO: Tie into space manager
-		if(!action_checks(target) || (src.loc.z in config.admin_levels)) return
+		if(!action_checks(target) || !is_teleport_allowed(src.loc.z)) return
 		var/list/theareas = list()
 		for(var/area/AR in orange(100, chassis))
 			if(AR in theareas) continue

code/game/objects/effects/landmarks.dm

@@ -13,7 +13,7 @@
 
 	switch(name)			//some of these are probably obsolete
 		if("shuttle")
-			shuttle_z = z
+			log_debug("Obsolete landmark '[name]' at ([x],[y],[z])")
 			qdel(src)
 
 		if("airtunnel_stop")

code/game/objects/items/devices/camera_bug.dm

@@ -61,7 +61,6 @@
 		return null
 
 	var/turf/T = get_turf(user.loc)
-	// TODO: Tie into space manager
 	if(T.z != current.z || !current.can_use())
 		to_chat(user, "<span class='danger'>[src] has lost the signal.</span>")
 		current = null
@@ -226,7 +225,6 @@
 				to_chat(usr, "<span class='danger'>Something's wrong with that camera.  You can't get a feed.</span>")
 				return
 			var/turf/T = get_turf(loc)
-			// TODO: Tie into space manager
 			if(!T || C.z != T.z)
 				to_chat(usr, "<span class='danger'>You can't get a signal.</span>")
 				return

code/game/objects/items/devices/radio/intercom.dm

@@ -124,7 +124,7 @@
 		return -1
 	if(!(0 in level))
 		var/turf/position = get_turf(src)
-		// TODO: Tie into space manager
+		// TODO: Integrate radio with the space manager
 		if(isnull(position) || !(position.z in level))
 			return -1
 	if(!src.listening)

code/game/objects/items/weapons/bee_briefcase.dm

@@ -64,8 +64,7 @@
 			//Play sound through the station intercomms, so everyone knows the doom you have wrought.
 			for(var/O in global_intercoms)
 				var/obj/item/device/radio/intercom/I = O
-				// TODO: Tie into space manager
-				if(I.z != ZLEVEL_STATION)	//Only broadcast to the station intercoms
+				if(!is_station_level(I.z))	//Only broadcast to the station intercoms
 					continue
 				if(!I.on)					//Only broadcast to active intercoms (powered, switched on)
 					continue

code/game/objects/items/weapons/teleportation.dm

@@ -48,8 +48,7 @@ Frequency:
 		return 1
 
 	var/turf/current_location = get_turf(usr)//What turf is the user on?
-	// TODO: Tie into space manager
-	if(!current_location ||( current_location.z in config.admin_levels))//If turf was not found or they're on z level 2.
+	if(!current_location || is_admin_level(current_location.z))//If turf was not found or they're in the admin zone
 		to_chat(usr, "<span class='warning'>\The [src] is malfunctioning.</span>")
 		return 1
 
@@ -62,7 +61,6 @@ Frequency:
 
 			for(var/obj/item/device/radio/beacon/W in beacons)
 				if(W.frequency == frequency && !W.syndicate)
-					// TODO: Tie into space manager
 					if(W && W.z == z)
 						var/turf/TB = get_turf(W)
 						temp += "[W.code]: [TB.x], [TB.y], [TB.z]<BR>"
@@ -109,8 +107,7 @@ Frequency:
 
 /obj/item/weapon/hand_tele/attack_self(mob/user as mob)
 	var/turf/current_location = get_turf(user)//What turf is the user on?
-	// TODO: Tie into space manager
-	if(!current_location||(current_location.z in config.admin_levels)||current_location.z>=ZLEVEL_EMPTY)//If turf was not found or they're on z level 2 or >7 which does not currently exist.
+	if(!current_location||!is_teleport_allowed(current_location.z))//If turf was not found or they're somewhere teleproof
 		to_chat(user, "<span class='notice'>\The [src] is malfunctioning.</span>")
 		return
 	var/list/L = list(  )

code/game/objects/structures/crates_lockers/closets.dm

@@ -192,8 +192,7 @@
 			return
 		var/obj/item/weapon/rcs/E = W
 		if(E.rcell && (E.rcell.charge >= E.chargecost))
-			// TODO: Tie into space manager
-			if(!(src.z in config.contact_levels))
+			if(!is_level_reachable(src.z))
 				to_chat(user, "<span class='warning'>The rapid-crate-sender can't locate any telepads!</span>")
 				return
 			if(E.mode == 0)

code/game/objects/structures/crates_lockers/crates.dm

@@ -84,8 +84,7 @@
 	if(istype(W, /obj/item/weapon/rcs) && !src.opened)
 		var/obj/item/weapon/rcs/E = W
 		if(E.rcell && (E.rcell.charge >= E.chargecost))
-			// TODO: Tie into space manager
-			if(!(src.z in config.player_levels))
+			if(!is_level_reachable(src.z)) // This is inconsistent with the closet sending code
 				to_chat(user, "<span class='warning'>The rapid-crate-sender can't locate any telepads!</span>")
 				return
 			if(E.mode == 0)

code/game/turfs/space/transit.dm

@@ -93,7 +93,8 @@
 	var/max = world.maxx-TRANSITIONEDGE
 	var/min = 1+TRANSITIONEDGE
 
-	var/_z = rand(ZLEVEL_CENTCOMM+1,MAX_Z)	//select a random space zlevel
+	var/datum/space_level/dest = pick(levels_by_trait(REACHABLE))
+	var/_z = dest.zpos	//select a random space zlevel
 
 	//now select coordinates for a border turf
 	var/_x

code/modules/admin/topic.dm

@@ -1980,8 +1980,7 @@
 				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.")
@@ -2328,8 +2327,7 @@
 				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
@@ -2566,8 +2564,7 @@
 				feedback_inc("admin_secrets_fun_used",1)
 				feedback_add_details("admin_secrets_fun_used","EgL")
 				for(var/obj/machinery/door/airlock/W in airlocks)
-					// 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

code/modules/awaymissions/zlevel.dm

@@ -59,7 +59,7 @@ var/global/list/potentialRandomZlevels = generateMapList(filename = "config/away
 		var/map = pick(potentialRandomZlevels)
 		var/file = file(map)
 		if(isfile(file))
-			var/zlev = space_manager.add_new_zlevel(AWAY_MISSION, linkage = UNAFFECTED)
+			var/zlev = space_manager.add_new_zlevel(AWAY_MISSION, linkage = UNAFFECTED, traits = list(AWAY_LEVEL,BLOCK_TELEPORT))
 			space_manager.add_dirt(zlev)
 			maploader.load_map(file, z_offset = zlev)
 			late_setup_level(block(locate(1, 1, zlev), locate(world.maxx, world.maxy, zlev)))

code/modules/clothing/spacesuits/rig/modules/ninja.dm

@@ -115,8 +115,7 @@
 		to_chat(H, "<span class='warning'>You cannot teleport into solid walls.</span>")
 		return 0*///Who the fuck cares? Ninjas in walls are cool.
 
-	// TODO: Tie into space manager
-	if(T.z in config.admin_levels)
+	if(!is_teleport_allowed(T.z))
 		to_chat(H, "<span class='warning'>You cannot use your teleporter on this Z-level.</span>")
 		return 0
 

code/modules/computer3/computers/camera.dm

@@ -181,8 +181,7 @@
 
 	//proc/camera_list(var/datum/file/camnet_key/key)
 	get_machines(var/datum/file/camnet_key/key)
-		// TODO: Tie into space manager
-		if(!computer || computer.z > ZLEVEL_DERELICT)
+		if(!computer || !is_away_level(computer.z))
 			return null
 
 		var/list/L = list()

code/modules/computer3/computers/communications.dm

@@ -59,8 +59,7 @@
 	Topic(var/href, var/list/href_list)
 		if(!interactable() || !computer.radio || ..(href,href_list) )
 			return
-		// TODO: Tie into space manager
-		if(!(computer.z in config.station_levels))
+		if(!is_station_level(computer.z))
 			to_chat(usr, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 			return
 

code/modules/computer3/computers/law.dm

@@ -24,8 +24,7 @@
 
 
 	attackby(obj/item/weapon/aiModule/module as obj, mob/user as mob, params)
-		// TODO: Tie into space manager
-		if(user.z > ZLEVEL_DERELICT)
+		if(is_away_level(user.z))
 			to_chat(user, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 			return
 		if(istype(module, /obj/item/weapon/aiModule))

code/modules/computer3/computers/medical.dm

@@ -49,8 +49,7 @@
 		scan = computer.cardslot.reader
 		if(!interactable())
 			return
-		// TODO: Tie into space manager
-		if(computer.z > ZLEVEL_DERELICT)
+		if(is_away_level(computer.z))
 			to_chat(usr, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 			return
 		var/dat

code/modules/computer3/computers/prisoner.dm

@@ -43,8 +43,7 @@
 				if(!T.implanted) continue
 				var/loc_display = "Unknown"
 				var/mob/living/carbon/M = T.imp_in
-				// TODO: Tie into space manager
-				if(M.z == ZLEVEL_STATION && !istype(M.loc, /turf/space))
+				if(is_station_level(M.z) && !istype(M.loc, /turf/space))
 					var/turf/mob_loc = get_turf(M)
 					loc_display = mob_loc.loc
 				dat += "ID: [T.id] | Location: [loc_display]<BR>"

code/modules/computer3/computers/robot.dm

@@ -31,8 +31,7 @@
 
 
 	interact()
-		// TODO: Tie into space manager
-		if(!interactable() || computer.z > ZLEVEL_DERELICT)
+		if(!interactable() || is_away_level(computer.z))
 			return
 		var/dat
 		if(src.temp)

code/modules/computer3/computers/security.dm

@@ -57,8 +57,7 @@
 		if(!interactable())
 			return
 
-		// TODO: Tie into space manager
-		if(computer.z > ZLEVEL_DERELICT)
+		if(is_away_level(computer.z))
 			to_chat(usr, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 			return
 		var/dat

code/modules/computer3/networking.dm

@@ -105,7 +105,7 @@
 		for(var/obj/O in radio_connection.devices)
 			if(istype(O,typekey))
 				T = get_turf(O)
-				// TODO: Tie into space manager
+				// TODO: Make the radio system cooperate with the space manager
 				if(istype(O) && (subspace || (O.z == z_level)))		// radio does not work across z-levels
 					result |= O
 		return result

code/modules/events/alien_infestation.dm

@@ -17,8 +17,7 @@
 /datum/event/alien_infestation/start()
 	var/list/vents = list()
 	for(var/obj/machinery/atmospherics/unary/vent_pump/temp_vent in world)
-		// TODO: Tie into space manager
-		if((temp_vent.loc.z in config.station_levels) && !temp_vent.welded)
+		if(is_station_level(temp_vent.loc.z) && !temp_vent.welded)
 			if(temp_vent.parent.other_atmosmch.len > 50)	//Stops Aliens getting stuck in small networks. See: Security, Virology
 				vents += temp_vent
 

code/modules/events/anomaly_bluespace.dm

@@ -19,8 +19,7 @@
 			var/obj/item/device/radio/beacon/chosen
 			var/list/possible = list()
 			for(var/obj/item/device/radio/beacon/W in world)
-				// TODO: Tie into space manager
-				if(!(W.z in config.station_levels))
+				if(!is_station_level(W.z))
 					continue
 				possible += W
 

code/modules/events/brand_intelligence.dm

@@ -18,8 +18,7 @@
 
 /datum/event/brand_intelligence/start()
 	for(var/obj/machinery/vending/V in machines)
-		// TODO: Tie into space manager
-		if(V.z != ZLEVEL_STATION)	continue
+		if(!is_station_level(V.z))	continue
 		vendingMachines.Add(V)
 
 	if(!vendingMachines.len)

code/modules/events/disease_outbreak.dm

@@ -21,8 +21,7 @@
 		var/turf/T = get_turf(H)
 		if(!T)
 			continue
-		// TODO: Tie into space manager
-		if(T.z != ZLEVEL_STATION)
+		if(!is_station_level(T.z))
 			continue
 		var/foundAlready = 0	// don't infect someone that already has the virus
 		for(var/datum/disease/D in H.viruses)

code/modules/events/dust.dm

@@ -62,7 +62,7 @@
 	goal = locate(endx, endy, 1)
 	src.x = startx
 	src.y = starty
-	src.z = ZLEVEL_STATION
+	src.z = level_name_to_num(MAIN_STATION)
 	spawn(0)
 		walk_towards(src, goal, 1)
 	return

code/modules/events/grid_check.dm

@@ -22,8 +22,7 @@
 
 	for(var/obj/machinery/power/smes/S in machines)
 		var/area/current_area = get_area(S)
-		// TODO: Tie into space manager
-		if(current_area.type in skipped_areas || !(S.z in config.station_levels))
+		if(current_area.type in skipped_areas || !is_station_level(S.z))
 			continue
 		S.last_charge			= S.charge
 		S.last_output_attempt	= S.output_attempt
@@ -36,8 +35,7 @@
 
 	for(var/obj/machinery/power/apc/C in apcs)
 		var/area/current_area = get_area(C)
-		// TODO: Tie into space manager
-		if(current_area.type in skipped_areas_apc || !(C.z in config.station_levels))
+		if(current_area.type in skipped_areas_apc || !is_station_level(C.z))
 			continue
 		if(C.cell)
 			C.cell.charge = 0
@@ -50,15 +48,13 @@
 		command_announcement.Announce("Power has been restored to [station_name()]. We apologize for the inconvenience.", "Power Systems Nominal", new_sound = 'sound/AI/poweron.ogg')
 	for(var/obj/machinery/power/apc/C in apcs)
 		var/area/current_area = get_area(C)
-		// TODO: Tie into space manager
-		if(current_area.type in skipped_areas_apc || !(C.z in config.station_levels))
+		if(current_area.type in skipped_areas_apc || !is_station_level(C.z))
 			continue
 		if(C.cell)
 			C.cell.charge = C.cell.maxcharge
 	for(var/obj/machinery/power/smes/S in machines)
 		var/area/current_area = get_area(S)
-		// TODO: Tie into space manager
-		if(current_area.type in skipped_areas || !(S.z in config.station_levels))
+		if(current_area.type in skipped_areas || !is_station_level(S.z))
 			continue
 		S.charge = S.last_charge
 		S.output_attempt = S.last_output_attempt
@@ -70,8 +66,7 @@
 	if(announce)
 		command_announcement.Announce("All SMESs on [station_name()] have been recharged. We apologize for the inconvenience.", "Power Systems Nominal", new_sound = 'sound/AI/poweron.ogg')
 	for(var/obj/machinery/power/smes/S in machines)
-		// TODO: Tie into space manager
-		if(S.z != ZLEVEL_STATION)
+		if(!is_station_level(S.z))
 			continue
 		S.charge = S.capacity
 		S.output_level = S.output_level_max

code/modules/events/holidays/Christmas.dm

@@ -1,7 +1,6 @@
 /proc/Christmas_Game_Start()
 	for(var/obj/structure/flora/tree/pine/xmas in world)
-		// TODO: Tie into space manager
-		if(!(xmas.z in config.station_levels))	continue
+		if(!is_station_level(xmas.z))	continue
 		for(var/turf/simulated/floor/T in orange(1,xmas))
 			for(var/i=1,i<=rand(1,5),i++)
 				new /obj/item/weapon/a_gift(T)

code/modules/events/holidays/Holidays.dm

@@ -171,7 +171,7 @@ var/global/Holiday = null
 */
 /*			var/list/obj/containers = list()
 			for(var/obj/item/weapon/storage/S in world)
-				if(!(S.z in config.station_levels))	continue
+				if(!is_station_level(S.z))	continue
 				containers += S
 
 			message_admins("\blue DEBUG: Event: Egg spawned at [Egg.loc] ([Egg.x],[Egg.y],[Egg.z])")*/

code/modules/events/radiation_storm.dm

@@ -24,8 +24,7 @@
 		command_announcement.Announce("High levels of radiation detected near the station. Please evacuate into one of the shielded maintenance tunnels.", "Anomaly Alert", new_sound = 'sound/AI/radiation.ogg')
 
 		for(var/area/A in world)
-			// TODO: Tie into space manager
-			if(!(A.z in config.station_levels) || is_safe_zone(A))
+			if(!is_station_level(A.z) || is_safe_zone(A))
 				continue
 			A.radiation_alert()
 
@@ -43,8 +42,7 @@
 				var/turf/T = get_turf(H)
 				if(!T)
 					continue
-				// TODO: Tie into space manager
-				if(!(T.z in config.station_levels) || is_safe_zone(T.loc))
+				if(!is_station_level(T.z) || is_safe_zone(T.loc))
 					continue
 
 				if(istype(H,/mob/living/carbon/human))
@@ -63,8 +61,7 @@
 		command_announcement.Announce("The station has passed the radiation belt. Please report to medbay if you experience any unusual symptoms. Maintenance will lose all access again shortly.", "Anomaly Alert")
 
 		for(var/area/A in world)
-			// TODO: Tie into space manager
-			if(!(A.z in config.station_levels) || is_safe_zone(A))
+			if(!is_station_level(A.z) || is_safe_zone(A))
 				continue
 			A.reset_radiation_alert()
 

code/modules/events/rogue_drones.dm

@@ -41,7 +41,7 @@
 		var/datum/effect/system/spark_spread/sparks = new /datum/effect/system/spark_spread()
 		sparks.set_up(3, 0, D.loc)
 		sparks.start()
-		D.z = ZLEVEL_CENTCOMM
+		D.z = level_name_to_num(CENTCOMM)
 		D.has_loot = 0
 
 		qdel(D)

code/modules/events/spider_infestation.dm

@@ -16,8 +16,7 @@
 
 	var/list/vents = list()
 	for(var/obj/machinery/atmospherics/unary/vent_pump/temp_vent in world)
-		// TODO: Tie into space manager
-		if((temp_vent.loc.z in config.station_levels) && !temp_vent.welded)
+		if(is_station_level(temp_vent.loc.z) && !temp_vent.welded)
 			if(temp_vent.parent.other_atmosmch.len > 50)
 				vents += temp_vent
 

code/modules/events/undead.dm

@@ -9,8 +9,7 @@
 	RS.start()
 	RS.kill()
 	for(var/area/A)
-		// TODO: Tie into space manager
-		if(!(A.z in config.station_levels)) continue //Spook on main station only.
+		if(!is_station_level(A.z)) continue //Spook on main station only.
 		if(A.luminosity) continue
 //			if(A.lighting_space) continue
 		if(A.type == /area) continue

code/modules/events/vent_clog.dm

@@ -11,8 +11,7 @@
 /datum/event/vent_clog/setup()
 	endWhen = rand(25, 100)
 	for(var/obj/machinery/atmospherics/unary/vent_scrubber/temp_vent in machines)
-		// TODO: Tie into space manager
-		if((temp_vent.loc.z in config.station_levels))
+		if(is_station_level(temp_vent.loc.z))
 			if(temp_vent.parent.other_atmosmch.len > 50)
 				vents += temp_vent
 

code/modules/events/wormholes.dm

@@ -13,8 +13,7 @@
 
 /datum/event/wormholes/start()
 	for(var/turf/simulated/floor/T in world)
-		// TODO: Tie into space manager
-		if((T.z in config.station_levels))
+		if(is_station_level(T.z))
 			pick_turfs += T
 
 	for(var/i in 1 to number_of_wormholes)

code/modules/holiday/christmas.dm

@@ -1,7 +1,6 @@
 /datum/holiday/xmas/celebrate()
 	for(var/obj/structure/flora/tree/pine/xmas in world)
-		// TODO: Tie into space manager
-		if(!(xmas.z in config.station_levels))	continue
+		if(!is_station_level(xmas.z))	continue
 		for(var/turf/simulated/floor/T in orange(1,xmas))
 			for(var/i=1,i<=rand(1,5),i++)
 				new /obj/item/weapon/a_gift(T)

code/modules/hydroponics/seed.dm

@@ -376,8 +376,7 @@
 
 	// Bluespace tomato code copied over from grown.dm.
 	if(get_trait(TRAIT_TELEPORTING))
-		// TODO: Tie into space manager
-		if(target.z in config.admin_levels)
+		if(!is_teleport_allowed(target.z))
 			return 1
 
 		//Plant potency determines radius of teleport.

code/modules/mining/equipment_locker.dm

@@ -528,8 +528,7 @@
 
 /obj/item/device/wormhole_jaunter/attack_self(mob/user as mob)
 	var/turf/device_turf = get_turf(user)
-	// TODO: Tie into space manager
-	if(!device_turf||device_turf.z==ZLEVEL_CENTCOMM||device_turf.z>=ZLEVEL_EMPTY)
+	if(!device_turf||is_teleport_allowed(device_turf.z))
 		to_chat(user, "<span class='notice'>You're having difficulties getting the [src.name] to work.</span>")
 		return
 	else
@@ -537,8 +536,7 @@
 		var/list/L = list()
 		for(var/obj/item/device/radio/beacon/B in world)
 			var/turf/T = get_turf(B)
-			// TODO: Tie into space manager
-			if(T.z == ZLEVEL_STATION)
+			if(is_station_level(T.z))
 				L += B
 		if(!L.len)
 			to_chat(user, "<span class='notice'>The [src.name] failed to create a wormhole.</span>")

code/modules/mining/ore.dm

@@ -240,8 +240,7 @@
 /obj/item/weapon/ore/New()
 	pixel_x = rand(0,16)-8
 	pixel_y = rand(0,8)-8
-	// TODO: Tie into space manager
-	if(src.z == ZLEVEL_ASTEROID)
+	if(is_mining_level(src.z))
 		score_oremined++ //When ore spawns, increment score.  Only include ore spawned on mining asteroid (No Clown Planet)
 
 /obj/item/weapon/ore/ex_act()

code/modules/mob/living/living.dm

@@ -18,10 +18,7 @@
 	var/turf/T = get_turf(src)
 	if(!T)
 		return 0
-	// TODO: Tie into space manager
-	if(T.z == ZLEVEL_CENTCOMM) //dont detect mobs on centcomm
-		return 0
-	if(T.z >= MAX_Z)
+	if(!is_level_reachable(T.z))
 		return 0
 	if(user != null && src == user)
 		return 0

code/modules/mob/living/silicon/ai/ai.dm

@@ -639,15 +639,13 @@ var/list/ai_verbs_default = list(
 	if(check_unable(AI_CHECK_WIRELESS | AI_CHECK_RADIO))
 		return
 
-	var/ai_allowed_Zlevel = list(ZLEVEL_STATION,ZLEVEL_TELECOMMS,ZLEVEL_ASTEROID)
 	var/d
 	var/area/bot_area
 	d += "<A HREF=?src=\ref[src];botrefresh=\ref[Bot]>Query network status</A><br>"
 	d += "<table width='100%'><tr><td width='40%'><h3>Name</h3></td><td width='20%'><h3>Status</h3></td><td width='30%'><h3>Location</h3></td><td width='10%'><h3>Control</h3></td></tr>"
 
 	for(var/mob/living/simple_animal/bot/Bot in simple_animal_list)
-		// TODO: Tie into space manager
-		if((Bot.z in ai_allowed_Zlevel) && !Bot.remote_disabled) //Only non-emagged bots on the allowed Z-level are detected!
+		if(is_ai_allowed(Bot.z) && !Bot.remote_disabled) //Only non-emagged bots on the allowed Z-level are detected!
 			bot_area = get_area(Bot)
 			d += "<tr><td width='30%'>[Bot.hacked ? "<span class='bad'>(!) </span>[Bot.name]" : Bot.name] ([Bot.model])</td>"
 			//If the bot is on, it will display the bot's current mode status. If the bot is not mode, it will just report "Idle". "Inactive if it is not on at all.

code/modules/mob/living/silicon/pai/software_modules.dm

@@ -500,8 +500,7 @@
 /mob/living/silicon/pai/proc/hackloop()
 	var/turf/T = get_turf_or_move(src.loc)
 	for(var/mob/living/silicon/ai/AI in player_list)
-		// TODO: Tie into space manager
-		if(!T || !(T.z in config.contact_levels))
+		if(!T || !is_station_contact(T.z))
 			break
 		if(T.loc)
 			to_chat(AI, "<font color = red><b>Network Alert: Brute-force encryption crack in progress in [T.loc].</b></font>")

code/modules/nano/interaction/default.dm

@@ -41,8 +41,7 @@
 	// Prevents the AI from using Topic on admin levels (by for example viewing through the court/thunderdome cameras)
 	// unless it's on the same level as the object it's interacting with.
 	var/turf/T = get_turf(src_object)
-	// TODO: Tie into space manager
-	if(!T || !(z == T.z || (T.z in config.player_levels)))
+	if(!T || !(atoms_share_level(src,T) || is_level_reachable(T.z)))
 		return STATUS_CLOSE
 
 	// If an object is in view then we can interact with it

code/modules/nano/modules/crew_monitor.dm

@@ -5,8 +5,7 @@
 	if(..())
 		return 1
 	var/turf/T = get_turf(nano_host())
-	// TODO: Tie into space manager
-	if(!T || !(T.z in config.player_levels))
+	if(!T || !is_level_reachable(T.z))
 		to_chat(usr, "<span class='warning'>Unable to establish a connection<span>: You're too far away from the station!")
 		return 0
 	if(href_list["track"])