[MIRROR] Subsystem For Overmap Shuttle's Star Movement Effects (#10897)

Co-authored-by: Will <7099514+Willburd@users.noreply.github.com>

code/modules/overmap/ships/ship.dm

@@ -133,7 +133,7 @@
 	else if(still)
 		STOP_PROCESSING(SSprocessing, src)
 		for(var/zz in map_z)
-			toggle_move_stars(zz)
+			SSstarmover.toggle_move_stars(zz)
 		if(last_sound + sound_cooldown >= world.time)
 			return
 		//VOREStation Add Start
@@ -148,7 +148,7 @@
 		START_PROCESSING(SSprocessing, src)
 		glide_size = WORLD_ICON_SIZE/max(DS2TICKS(SSprocessing.wait), 1) //Down to whatever decimal
 		for(var/zz in map_z)
-			toggle_move_stars(zz, fore_dir)
+			SSstarmover.toggle_move_stars(zz, fore_dir)
 		if(last_sound + sound_cooldown >= world.time)
 			return
 		//VOREStation Add Start

code/modules/overmap/turfs.dm

@@ -89,20 +89,3 @@ GLOBAL_LIST_EMPTY(map_sectors)
 	..()
 	if(istype(O, /obj/effect/overmap/visitable/ship))
 		GLOB.overmap_event_handler.on_turf_exited(src, O, newloc)
-
-//list used to track which zlevels are being 'moved' by the proc below
-var/list/moving_levels = list()
-//Proc to 'move' stars in spess
-//yes it looks ugly, but it should only fire when state actually change.
-//null direction stops movement
-/proc/toggle_move_stars(zlevel, direction)
-	if(!zlevel)
-		return
-
-	if (moving_levels["[zlevel]"] != direction)
-		moving_levels["[zlevel]"] = direction
-
-		var/list/spaceturfs = block(locate(1, 1, zlevel), locate(world.maxx, world.maxy, zlevel))
-		for(var/turf/space/T in spaceturfs)
-			T.toggle_transit(direction)
-			CHECK_TICK