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code/game/objects/effects/misc.dm

@@ -74,6 +74,14 @@
 /obj/effect/spawner
 	name = "object spawner"
 
+/**
+ * Used when we want to pass vars from a spawner to a spawned object
+ *
+ * o - The spawned object we want to pass a var to
+ */
+/obj/effect/spawner/proc/synchronize_variables(atom/a)
+	return
+
 /obj/effect/list_container
 	name = "list container"
 

code/game/objects/effects/spawners/windowspawner.dm

@@ -7,12 +7,11 @@
 	var/window_to_spawn_regular = /obj/structure/window/basic
 	var/window_to_spawn_full = /obj/structure/window/full/basic
 	anchored = TRUE // No sliding out while you prime
-	/// Used to link electrochromic windows to buttons
-	var/id
 
 /obj/effect/spawner/window/Initialize(mapload)
 	. = ..()
 	var/turf/T = get_turf(src)
+	var/obj/structure/window/WI
 	for(var/obj/structure/grille/G in get_turf(src))
 		// Complain noisily
 		log_runtime(EXCEPTION("Extra grille on turf: ([T.x],[T.y],[T.z])"), src)
@@ -25,16 +24,11 @@
 				break
 			if(!cdir)
 				continue
-			var/obj/structure/window/WI = new window_to_spawn_regular(get_turf(src))
+			WI = new window_to_spawn_regular(get_turf(src))
 			WI.dir = cdir
-			if(istype(src, /obj/effect/spawner/window/reinforced/polarized) && id)
-				var/obj/structure/window/reinforced/polarized/WIP = WI
-				WIP.id = id
 	else
-		var/obj/structure/window/WI = new window_to_spawn_full(get_turf(src))
-		if(istype(src, /obj/effect/spawner/window/reinforced/polarized) && id)
-			var/obj/structure/window/full/reinforced/polarized/WIP = WI
-			WIP.id = id
+		WI = new window_to_spawn_full(get_turf(src))
+	synchronize_variables(WI)
 
 	if(useGrille)
 		new /obj/structure/grille(get_turf(src))
@@ -42,7 +36,6 @@
 	air_update_turf(TRUE) //atmos can pass otherwise
 	return INITIALIZE_HINT_QDEL
 
-
 /obj/effect/spawner/window/reinforced
 	name = "reinforced window spawner"
 	icon_state = "rwindow_spawner"
@@ -72,6 +65,16 @@
 	icon_state = "ewindow_spawner"
 	window_to_spawn_regular = /obj/structure/window/reinforced/polarized
 	window_to_spawn_full = /obj/structure/window/full/reinforced/polarized
+	/// Used to link electrochromic windows to buttons
+	var/id
+
+/obj/effect/spawner/window/reinforced/polarized/synchronize_variables(atom/a)
+	if(useFull)
+		var/obj/structure/window/full/reinforced/polarized/p = a
+		p.id = id
+	else
+		var/obj/structure/window/reinforced/polarized/p = a
+		p.id = id
 
 /obj/effect/spawner/window/shuttle
 	name = "shuttle window spawner"