From 5ac1975131cf309627af58f3a4d838554d3daef5 Mon Sep 17 00:00:00 2001
From: Zonespace <41448081+Zonespace27@users.noreply.github.com>
Date: Sun, 19 Nov 2023 03:02:07 -0800
Subject: [PATCH] Fix issue with null hud_used in stop_tracking_resin_mark
 (#4948)

# About the pull request

![image](https://github.com/cmss13-devs/cmss13/assets/41448081/f061830e-975f-49fb-b17e-a139fc5bff09)

Fixes above runtime.

Unsure if `hud_used` being null is because this is being called during
the destroy process of the xeno, or if it's a deeper issue. I've put in
a crash to test.
---
 code/modules/mob/living/carbon/xenomorph/XenoProcs.dm | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/code/modules/mob/living/carbon/xenomorph/XenoProcs.dm b/code/modules/mob/living/carbon/xenomorph/XenoProcs.dm
index 780299547a51..0645d5fcba90 100644
--- a/code/modules/mob/living/carbon/xenomorph/XenoProcs.dm
+++ b/code/modules/mob/living/carbon/xenomorph/XenoProcs.dm
@@ -695,6 +695,12 @@
 	to_chat(src, SPAN_INFO("shift click the compass to watch the mark, alt click to stop tracking"))
 
 /mob/living/carbon/xenomorph/proc/stop_tracking_resin_mark(destroyed, silent = FALSE) //tracked_marker shouldnt be nulled outside this PROC!! >:C
+	if(QDELETED(src))
+		return
+
+	if(!hud_used)
+		CRASH("hud_used is null in stop_tracking_resin_mark")
+
 	var/atom/movable/screen/mark_locator/ML = hud_used.locate_marker
 	ML.overlays.Cut()