Removes most hard-coded z level checks

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"