even better

code/__HELPERS/unsorted.dm

@@ -923,6 +923,12 @@ var/list/ignored_keys = list("loc", "locs", "parent_type", "vars", "verbs", "typ
 						fromupdate += T.ChangeTurf(turftoleave)
 					else
 						T.ChangeTurf(/turf/space)
+						switch(universe.name)
+							if("Hell Rising")
+								T.overlays += "hell01"
+							if("Supermatter Cascade")
+								T.overlays += "end01"
+
 
 					refined_src -= T
 					refined_trg -= B

code/controllers/shuttle_controller.dm

@@ -34,7 +34,7 @@ datum/shuttle_controller
 	// call the shuttle
 	// if not called before, set the endtime to T+600 seconds
 	// otherwise if outgoing, switch to incoming
-	proc/incall(coeff = 1)
+datum/shuttle_controller/proc/incall(coeff = 1)
 	if(shutdown) return
 	if((!universe.OnShuttleCall(null) || deny_shuttle) && alert == 1) //crew transfer shuttle does not gets recalled by gamemode
 		return
@@ -52,18 +52,18 @@ datum/shuttle_controller
 			if(istype(A, /area/hallway) && !A.lighting_subarea)
 				A.readyalert()
 
-	proc/shuttlealert(var/X)
+datum/shuttle_controller/proc/shuttlealert(var/X)
 	if(shutdown) return
 	alert = X
 
 
-	proc/force_shutdown()
+datum/shuttle_controller/proc/force_shutdown()
 	online=0
 	shutdown=1
 
 
 
-	proc/recall()
+datum/shuttle_controller/proc/recall()
 	if(shutdown) return
 	if(!can_recall)	return
 	if(direction == 1)
@@ -85,9 +85,9 @@ datum/shuttle_controller
 			online = 1
 			return
 
-	// returns the time (in seconds) before shuttle arrival
-	// note if direction = -1, gives a count-up to SHUTTLEARRIVETIME
-	proc/timeleft()
+// returns the time (in seconds) before shuttle arrival
+// note if direction = -1, gives a count-up to SHUTTLEARRIVETIME
+datum/shuttle_controller/proc/timeleft()
 
 	if(online)
 		var/timeleft = round((endtime - world.timeofday)/10 ,1)
@@ -98,14 +98,14 @@ datum/shuttle_controller
 	else
 		return SHUTTLEARRIVETIME
 
-	// sets the time left to a given delay (in seconds)
-	proc/settimeleft(var/delay)
+// sets the time left to a given delay (in seconds)
+datum/shuttle_controller/proc/settimeleft(var/delay)
 	endtime = world.timeofday + delay * 10
 	timelimit = delay
 
-	// sets the shuttle direction
-	// 1 = towards SS13, -1 = back to centcom
-	proc/setdirection(var/dirn)
+// sets the shuttle direction
+// 1 = towards SS13, -1 = back to centcom
+datum/shuttle_controller/proc/setdirection(var/dirn)
 	if(direction == dirn)
 		return
 	direction = dirn
@@ -114,15 +114,15 @@ datum/shuttle_controller
 	endtime = world.timeofday + (SHUTTLEARRIVETIME*10 - ticksleft)
 	return
 
-	proc/process()
+datum/shuttle_controller/proc/process()
 
-	proc/move_pod(var/start_type,var/end_type,var/direction,var/open_doors)
+datum/shuttle_controller/proc/move_pod(var/start_type,var/end_type,var/direction,var/open_doors)
 	var/area/start_location=locate(start_type)
 	var/area/end_location=locate(end_type)
 
 	start_location.move_contents_to(end_location, null, direction)
 
-		for(var/obj/machinery/door/D in world)
+	for(var/obj/machinery/door/D in all_doors)
 		if( get_area(D) == end_location )
 			spawn(0)
 				if(open_doors)
@@ -142,8 +142,9 @@ datum/shuttle_controller
 				M.Weaken(5)
 
 
-	emergency_shuttle
-		force_shutdown()
+datum/shuttle_controller/emergency_shuttle
+
+datum/shuttle_controller/emergency_shuttle/force_shutdown()
 	..()
 	if(direction == 2)
 		location = 1
@@ -159,7 +160,7 @@ datum/shuttle_controller
 
 		online = 0
 
-		process()
+datum/shuttle_controller/emergency_shuttle/process()
 	if(!online || shutdown)
 		return
 	var/timeleft = timeleft()

code/game/gamemodes/cult/hell_universe.dm

@@ -98,7 +98,7 @@ In short:
 
 		A.updateicon()
 
-/datum/universal_state/hell/proc/OverlayAndAmbientSet()
+/datum/universal_state/hell/OverlayAndAmbientSet()
 	for(var/turf/T in world)
 		if(istype(T, /turf/space))
 			T.overlays += "hell01"

code/game/gamemodes/endgame/endgame.dm

@@ -60,6 +60,9 @@
 /datum/universal_state/proc/OnTurfChange(var/turf/NT)
  	return
 
+/datum/universal_state/proc/OverlayAndAmbientSet()
+	return
+
 /proc/SetUniversalState(var/newstate,var/on_exit=1, var/on_enter=1)
 	if(on_exit)
 		universe.OnExit()

code/game/gamemodes/endgame/supermatter_cascade/universe.dm

@@ -126,7 +126,7 @@ AUTOMATED ALERT: Link to [command_name()] lost."}
 
 		A.updateicon()
 
-/datum/universal_state/supermatter_cascade/proc/OverlayAndAmbientSet()
+/datum/universal_state/supermatter_cascade/OverlayAndAmbientSet()
 	for(var/turf/T in world)
 		if(istype(T, /turf/space))
 			T.overlays += "end01"

code/game/machinery/doors/door.dm

@@ -3,7 +3,7 @@
 #define BLOB_PROBABILITY 40
 #define HEADBUTT_PROBABILITY 40
 #define BRAINLOSS_FOR_HEADBUTT 60
-
+var/list/all_doors = list()
 /obj/machinery/door
 	name = "door"
 	desc = "It opens and closes."
@@ -294,6 +294,7 @@
 
 /obj/machinery/door/New()
 	. = ..()
+	all_doors += src
 
 	if(density)
 		// above most items if closed
@@ -334,6 +335,7 @@
 
 /obj/machinery/door/Destroy()
 	update_nearby_tiles()
+	all_doors -= src
 	..()
 
 /obj/machinery/door/CanPass(atom/movable/mover, turf/target, height=1.5, air_group = 0)