From c46ba6eca8616637d08119b49a4f43ca33b7fac3 Mon Sep 17 00:00:00 2001
From: Toastical <20125180+Toastical@users.noreply.github.com>
Date: Mon, 1 Sep 2025 07:29:03 +0300
Subject: [PATCH] Make get_open_turf respect the airtightness of anything in
 the turf. (#30152)

* free-adjacent-turfs now considers windows

* open adjacent turfs arer now determined using millas airtight index
---
 code/__HELPERS/game.dm | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/code/__HELPERS/game.dm b/code/__HELPERS/game.dm
index 11d5a1aaeff..027ba2b61e2 100644
--- a/code/__HELPERS/game.dm
+++ b/code/__HELPERS/game.dm
@@ -26,7 +26,23 @@
 
 /proc/get_open_turf_in_dir(atom/center, dir)
 	var/turf/T = get_ranged_target_turf(center, dir, 1)
-	if(T && !T.density)
+	if(T)
+		var/list/milla = new/list(MILLA_TILE_SIZE)
+		get_tile_atmos(T, milla)
+
+		var/checked_dir
+		switch(dir)
+			if(NORTH)
+				checked_dir = MILLA_NORTH
+			if(EAST)
+				checked_dir = MILLA_EAST
+			if(SOUTH)
+				checked_dir = MILLA_SOUTH
+			if(WEST)
+				checked_dir = MILLA_WEST
+
+		if(milla[MILLA_INDEX_AIRTIGHT_DIRECTIONS] & checked_dir)
+			return
 		return T
 
 /proc/get_adjacent_open_turfs(atom/center)