From 5c2f3170f5add96f04912713b3e0d7ef08a35138 Mon Sep 17 00:00:00 2001
From: GDN <96800819+GDNgit@users.noreply.github.com>
Date: Sat, 24 Feb 2024 14:14:00 -0600
Subject: [PATCH] [S] fixes a headslug exploit (#24300)

* fixes headslugs being able to double up on the dead

* Update code/modules/mob/living/simple_animal/hostile/headslug.dm

Co-authored-by: Contrabang <91113370+Contrabang@users.noreply.github.com>

---------

Co-authored-by: Contrabang <91113370+Contrabang@users.noreply.github.com>
---
 .../mob/living/simple_animal/hostile/headslug.dm    | 13 +++++++++----
 code/modules/surgery/organs/organ_external.dm       |  2 --
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/code/modules/mob/living/simple_animal/hostile/headslug.dm b/code/modules/mob/living/simple_animal/hostile/headslug.dm
index 735ca1d4bc7b..19137beaac9e 100644
--- a/code/modules/mob/living/simple_animal/hostile/headslug.dm
+++ b/code/modules/mob/living/simple_animal/hostile/headslug.dm
@@ -52,6 +52,9 @@
 	if(HAS_TRAIT(carbon_target, TRAIT_XENO_HOST))
 		to_chat(src, "<span class='userdanger'>A foreign presence repels us from this body. Perhaps we should try to infest another?</span>")
 		return
+	if(!carbon_target.get_int_organ_datum(ORGAN_DATUM_HEART))
+		to_chat(src, "<span class='userdanger'>There's no heart for us to infest!</span>")
+		return
 	Infect(carbon_target)
 	to_chat(src, "<span class='userdanger'>With our egg laid, our death approaches rapidly...</span>")
 	addtimer(CALLBACK(src, PROC_REF(death)), 25 SECONDS)
@@ -114,11 +117,13 @@
 		owner.gib()
 		return
 
-	owner.apply_damage(300, BRUTE, BODY_ZONE_CHEST)
 	owner.bleed(BLOOD_VOLUME_NORMAL)
-	var/obj/item/organ/external/chest = owner.get_organ(BODY_ZONE_CHEST)
-	chest.fracture()
-	chest.disembowel()
+	var/datum/organ/our_heart_datum = owner.get_int_organ_datum(ORGAN_DATUM_HEART)
+	var/obj/item/organ/internal/our_heart = our_heart_datum.linked_organ
+	var/obj/item/organ/external/heart_location = owner.get_organ(our_heart.parent_organ)
+	owner.apply_damage(300, BRUTE, our_heart.parent_organ)
+	heart_location.fracture()
+	heart_location.disembowel(our_heart.parent_organ)
 
 #undef EGG_INCUBATION_DEAD_CYCLE
 #undef EGG_INCUBATION_LIVING_CYCLE
diff --git a/code/modules/surgery/organs/organ_external.dm b/code/modules/surgery/organs/organ_external.dm
index dc6da40ef36e..4468194ed880 100644
--- a/code/modules/surgery/organs/organ_external.dm
+++ b/code/modules/surgery/organs/organ_external.dm
@@ -656,8 +656,6 @@ Note that amputating the affected organ does in fact remove the infection from t
 	if(disembowel("groin"))
 		return TRUE
 
-
-
 /obj/item/organ/external/attackby(obj/item/I, mob/user, params)
 	if(I.sharp)
 		add_fingerprint(user)