Move these defines into proper files (#4653)

code/game/objects/effects/step_triggers.dm

@@ -157,9 +157,6 @@ var/global/list/tele_landmarks = list() // Terrible, but the alternative is loop
 /obj/effect/step_trigger/teleporter/planetary_fall
 	var/datum/planet/planet = null
 
-/obj/effect/step_trigger/teleporter/planetary_fall/sif/initialize()
-	planet = planet_sif
-
 /obj/effect/step_trigger/teleporter/planetary_fall/Trigger(var/atom/movable/A)
 	if(planet)
 		if(!planet.planet_floors.len)

code/modules/shuttles/shuttle.dm

@@ -253,4 +253,8 @@
 		if(HYPERSPACE_END)
 			sound_to_play = 'sound/effects/shuttles/hyperspace_end.ogg'
 	for(var/obj/machinery/door/E in A)	//dumb, I know, but playing it on the engines doesn't do it justice
-		playsound(E, sound_to_play, 50, FALSE)
+		playsound(E, sound_to_play, 50, FALSE)
+
+/datum/shuttle/proc/message_passengers(area/A, var/message)
+	for(var/mob/M in A)
+		M.show_message(message, 2)

code/modules/shuttles/shuttle_arrivals.dm

@@ -57,10 +57,6 @@
 
 	..() // Do everything else
 
-/datum/shuttle/proc/message_passengers(area/A, var/message)
-	for(var/mob/M in A)
-		M.show_message(message, 2)
-
 /*
 /datum/shuttle/ferry/arrivals/current_dock_target()
 	if(location) // If we're off station.

maps/southern_cross/turfs/outdoors.dm

@@ -158,4 +158,8 @@
 /turf/simulated/mineral/floor/ignore_mapgen/vacuum
 	oxygen = 0
 	nitrogen = 0
-	temperature = TCMB
+	temperature = TCMB
+
+// Step trigger to fall down to planet Sif
+/obj/effect/step_trigger/teleporter/planetary_fall/sif/initialize()
+	planet = planet_sif