fixes

code/game/objects/effects/portals.dm

@@ -183,3 +183,47 @@
 	else
 		real_target = get_turf(linked)
 	return real_target
+
+/obj/effect/portal/permanent
+	name = "permanent portal"
+	desc = "An unwavering portal that will never fade."
+	hardlinked = FALSE // dont qdel my portal nerd
+	force_teleport = TRUE // force teleports because they're a mapmaker tool
+	var/id // var edit or set id in map editor
+
+/obj/effect/portal/permanent/proc/set_linked()
+	if(!id)
+		return
+	for(var/obj/effect/portal/permanent/P in GLOB.portals - src)
+		if(P.id == id)
+			P.linked = src
+			linked = P
+			break
+
+/obj/effect/portal/permanent/teleport(atom/movable/M, force = FALSE)
+	set_linked() // update portal links
+	. = ..()
+
+/obj/effect/portal/permanent/one_way // doesn't have a return portal, can have multiple exits, /obj/effect/landmark/portal_exit to mark them
+	name = "one-way portal"
+	desc = "You get the feeling that this might not be the safest thing you've ever done."
+
+/obj/effect/portal/permanent/one_way/set_linked()
+	if(!id)
+		return
+	var/list/possible_turfs = list()
+	for(var/obj/effect/landmark/portal_exit/PE in GLOB.landmarks_list)
+		if(PE.id == id)
+			var/turf/T = get_turf(PE)
+			if(T)
+				possible_turfs |= T
+	if(possible_turfs.len)
+		hard_target = pick(possible_turfs)
+
+/obj/effect/portal/permanent/one_way/one_use
+	name = "one-use portal"
+	desc = "This is probably the worst decision you'll ever make in your life."
+
+/obj/effect/portal/permanent/one_way/one_use/teleport(atom/movable/M, force = FALSE)
+	. = ..()
+	qdel(src)