Backports the new zombification mechanics from the Konyang zombie event. (#18710)

* Reorder parasites

* sounds

* organ defines, dmdocs

* maiming stuff

* undead changes, abilities

* hylemnomil, undead sprites

* antibodies

* antibody extractor code

* icons

* antibody fixes

* antibodies vial, rock break sfx

* You're all going to die down here.

* hylemnomilz eta vial and attributions

* zombified organs can't be removed

* hylemnomil zeta edits

* fixes

* lmao

* easier check

---------

Co-authored-by: Matt Atlas <liermattia@gmail.com>

code/game/objects/items/stacks/barricades.dm

@@ -0,0 +1,87 @@
+/obj/item/stack/barricade
+	name = "metal barricade kit"
+	desc = "A kit of metal, pipes, nuts, and bolts. You can make a barricade with this."
+	singular_name = "barricade kit"
+	max_amount = 5
+	icon = 'icons/obj/barricade_stacks.dmi'
+	icon_state = "steel-kit"
+	w_class = ITEMSIZE_SMALL
+	matter = list(DEFAULT_WALL_MATERIAL = 650, MATERIAL_PHORON = 100, MATERIAL_PLASTEEL = 150)
+	var/barricade_name = "steel"
+	var/barricade_type = /obj/structure/barricade/metal
+	var/build_sound = 'sound/effects/clang.ogg'
+
+/obj/item/stack/barricade/attack_self(mob/living/user)
+	..()
+	add_fingerprint(user)
+
+	if(!isturf(user.loc))
+		return
+
+	if(istype(user.loc, /turf/space))
+		to_chat(user, SPAN_WARNING("The barricade must be constructed on a proper surface!"))
+		return
+
+	user.visible_message(SPAN_NOTICE("[user] starts assembling a [barricade_name] barricade."),
+	SPAN_NOTICE("You start assembling a barricade."))
+
+	if(!do_after(user, 3 SECONDS, do_flags = DO_REPAIR_CONSTRUCT))
+		return
+
+	for(var/obj/O in user.loc) //Objects, we don't care about mobs. Turfs are checked elsewhere
+		if(O.density)
+			if(!(O.atom_flags & ATOM_FLAG_CHECKS_BORDER) || O.dir == user.dir)
+				return
+
+	var/obj/structure/barricade/SB = new barricade_type(user.loc, user, user.dir)
+	user.visible_message(SPAN_NOTICE("[user] assembles a [barricade_name] barricade."),
+	SPAN_NOTICE("You assemble a [barricade_name] barricade."))
+	SB.set_dir(user.dir)
+	SB.add_fingerprint(user)
+	playsound(SB, build_sound)
+	use(1)
+
+/obj/item/stack/barricade/random/Initialize(mapload)
+	. = ..()
+	amount = rand(1, 5)
+	update_icon()
+
+/obj/item/stack/barricade/full/Initialize(mapload)
+	. = ..()
+	amount = 5
+	update_icon()
+
+/obj/item/stack/barricade/plasteel
+	name = "plasteel barricade kit"
+	desc = "A kit of plasteel, pipes, nuts, and bolts. You can make a barricade with this."
+	barricade_name = "plasteel"
+	barricade_type = /obj/structure/barricade/plasteel
+	icon_state = "plasteel-kit"
+
+/obj/item/stack/barricade/plasteel/random/Initialize(mapload)
+	. = ..()
+	amount = rand(1, 5)
+	update_icon()
+
+/obj/item/stack/barricade/plasteel/full/Initialize(mapload)
+	. = ..()
+	amount = 5
+	update_icon()
+
+/obj/item/stack/barricade/wood
+	name = "wooden barricade kit"
+	desc = "A kit of wooden planks, nails, and probably something to use as a hammer. You can make a barricade with this."
+	barricade_name = "wood"
+	barricade_type = /obj/structure/barricade/wooden
+	icon_state = "wood-kit"
+	build_sound = 'sound/effects/woodhit.ogg'
+
+/obj/item/stack/barricade/wood/random/Initialize(mapload)
+	. = ..()
+	amount = rand(1,5)
+	update_icon()
+
+/obj/item/stack/barricade/wood/full/Initialize(mapload)
+	. = ..()
+	amount = 5
+	update_icon()

code/game/objects/items/weapons/grenades/chem_grenade.dm

@@ -395,22 +395,22 @@
 	icon_state = initial(icon_state) +"_locked"
 
 ///Zombie-producing grenade
-/obj/item/grenade/chem_grenade/trioxin
-	name = "trioxin grenade"
-	desc = "Concentrated trioxin. The lab really cooked for this one."
+/obj/item/grenade/chem_grenade/hylemnomil
+	name = "hylemnomil grenade"
+	desc = "Concentrated hylemnomil. The lab really cooked for this one."
 	stage = 2
 	path = 1
 
-/obj/item/grenade/chem_grenade/trioxin/Initialize()
+/obj/item/grenade/chem_grenade/hylemnomil/Initialize()
 	. = ..()
 	var/obj/item/reagent_containers/glass/beaker/large/B1 = new(src)
 	var/obj/item/reagent_containers/glass/beaker/large/B2 = new(src)
 
 	B1.reagents.add_reagent(/singleton/reagent/phosphorus, 40)
 	B1.reagents.add_reagent(/singleton/reagent/potassium, 40)
-	B1.reagents.add_reagent(/singleton/reagent/toxin/trioxin, 40)
+	B1.reagents.add_reagent(/singleton/reagent/toxin/hylemnomil, 40)
 	B2.reagents.add_reagent(/singleton/reagent/sugar, 40)
-	B2.reagents.add_reagent(/singleton/reagent/toxin/trioxin, 80)
+	B2.reagents.add_reagent(/singleton/reagent/toxin/hylemnomil, 80)
 
 	detonator = new/obj/item/device/assembly_holder/timer_igniter(src)