Fixes init on various things, as well as allowing the

map loader to safely load templates mid-run

code/modules/awaymissions/map_rng.dm

@@ -24,6 +24,9 @@
 	if(template)
 		load(template)
 
+/obj/effect/landmark/map_loader/set_tag()
+	return
+
 /obj/effect/landmark/map_loader/proc/load(datum/map_template/t)
 	if(!t)
 		return

code/modules/awaymissions/maploader/reader.dm

@@ -91,11 +91,12 @@ var/global/dmm_suite/preloader/_preloader = new
 				var/ycrd = text2num(dmmRegex.group[4]) + y_offset - 1
 				var/zcrd = text2num(dmmRegex.group[5]) + z_offset - 1
 
-				if(zcrd > world.maxz)
-					if(cropMap)
-						continue
-					else
-						zlevels.increase_max_zlevel_to(zcrd) //create a new z_level if needed
+				if(!measureOnly)
+					if(zcrd > world.maxz)
+						if(cropMap)
+							continue
+						else
+							zlevels.increase_max_zlevel_to(zcrd) //create a new z_level if needed
 
 				bounds[MAP_MINX] = min(bounds[MAP_MINX], xcrdStart)
 				bounds[MAP_MINZ] = min(bounds[MAP_MINZ], zcrd)
@@ -259,6 +260,8 @@ var/global/dmm_suite/preloader/_preloader = new
 
 	//first instance the /area and remove it from the members list
 	index = members.len
+
+	var/turf/crds = locate(xcrd,ycrd,zcrd)
 	if(members[index] != /area/template_noop)
 		// We assume `members[index]` is an area path, as above, yes? I will operate
 		// on that assumption.
@@ -269,7 +272,6 @@ var/global/dmm_suite/preloader/_preloader = new
 		_preloader.setup(members_attributes[index])//preloader for assigning  set variables on atom creation
 		instance = LM.area_path_to_real_area(members[index])
 
-		var/turf/crds = locate(xcrd,ycrd,zcrd)
 		if(crds)
 			instance.contents.Add(crds)
 
@@ -317,7 +319,7 @@ var/global/dmm_suite/preloader/_preloader = new
 	var/turf/T = locate(x,y,z)
 	if(T)
 		if(ispath(path, /turf))
-			T.ChangeTurf(path, 1)
+			T.ChangeTurf(path, 1, 0)
 			instance = T
 		else if(ispath(path, /area))
 

code/modules/awaymissions/mission_code/spacehotel.dm

@@ -80,11 +80,11 @@
 	var/datum/map_template/M = safepick(dir == NORTH ? north_room_templates : south_room_templates)
 	if(M)
 		template = M
-		load(M)
 		if(dir == NORTH)
 			north_room_templates -= M
 		else
 			south_room_templates -= M
+		load(M)
 
 // The door to a hotel room, but also metadata for the room itself
 /obj/machinery/door/unpowered/hotel_door

code/modules/awaymissions/zlevel.dm

@@ -35,6 +35,19 @@ var/global/list/potentialRandomZlevels = generateMapList(filename = "config/away
 	log_debug("\tTook [stop_watch(subtimer)]s")
 	log_debug("Late setup finished - took [stop_watch(total_timer)]s")
 
+/proc/empty_rect(low_x,low_y, hi_x,hi_y, z)
+	var/timer = start_watch()
+	log_debug("Emptying region: ([low_x], [low_y]) to ([hi_x], [hi_y]) on z '[z]'")
+	empty_region(block(locate(low_x, low_y, z), locate(hi_x, hi_y, z)))
+	log_debug("Took [stop_watch(timer)]s")
+
+/proc/empty_region(list/turfs)
+	for(var/thing in turfs)
+		var/turf/T = thing
+		for(var/otherthing in T)
+			qdel(otherthing)
+		T.ChangeTurf(/turf/space)
+
 /proc/createRandomZlevel()
 	if(awaydestinations.len)	//crude, but it saves another var!
 		return

code/modules/awaymissions/zvis.dm

@@ -21,6 +21,9 @@
 /obj/effect/levelref/New()
 	..()
 	levels += src
+
+/obj/effect/levelref/initialize()
+	..()
 	for(var/obj/effect/levelref/O in levels)
 		if(id == O.id && O != src)
 			other = O
@@ -104,7 +107,7 @@
 /turf/unsimulated/floor/upperlevel/New()
 	..()
 	var/obj/effect/levelref/R = locate() in get_area(src)
-	if(R)
+	if(R && R.other)
 		init(R)
 
 /turf/unsimulated/floor/upperlevel/Destroy()
@@ -159,6 +162,8 @@
 	..()
 	portals += src
 
+/obj/effect/view_portal/initialize()
+	..()
 	if(id)
 		for(var/obj/effect/view_portal/O in portals)
 			if(id == O.id && O != src && can_link(O))
@@ -361,4 +366,4 @@
 		screen_loc = "CENTER[ox >= 0 ? "+" : ""][ox],CENTER[oy >= 0 ? "+" : ""][oy]"
 
 /obj/effect/view_portal_dummy/attack_ghost(mob/user)
-	owner.attack_ghost(user)
+	owner.attack_ghost(user)