Mutants - HNZ1 - A medical and scientific adventure! (#4664)

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* Update zombie_cure.dm

* Update zombie_techweb.dm

* Update zombie_cure.dm

* Update zombie_cure.dm

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* THEY ARE MUTANTS, NOT ZOMBIES

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* Update mutant_event.dm

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* Update mutant_cure.dm

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* Update mutant_parts_greyscale.dmi

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* Create research2.dmm

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* Update mutant_datum.dm

* Update research2.dmm

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* Update mutant_cure.dm

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* Update mutant_datum.dm

code/__DEFINES/~skyrat_defines/is_helpers.dm

@@ -0,0 +1 @@
+#define ismutant(A) (is_species(A, /datum/species/mutant))

code/__DEFINES/~skyrat_defines/signals.dm

@@ -19,3 +19,7 @@
 #define COMSIG_UPDATE_AMMO_HUD "update_ammo_hud"
 ///The gun has jammed.
 #define COMSIG_GUN_JAMMED "gun_jammed"
+
+//Mutant stuff
+///When a mutant is cured of the virus
+#define COMSIG_MUTANT_CURED "mutant_cured"

code/__DEFINES/~skyrat_defines/sound.dm

@@ -16,3 +16,4 @@
 #define ANNOUNCER_BLUESPACEARTY "announcer_bluespacearty"
 #define ANNOUNCER_SPOOKY "announcer_spooky"
 #define ANNOUNCER_ERTYES "announcer_ertyes"
+#define ANNOUNCER_MUTANTS "announcer_mutants"

code/__DEFINES/~skyrat_defines/traits.dm

@@ -12,6 +12,8 @@
 #define TRAIT_DETECTIVE "detective_ability" //Given to the detective, if they have this, they can see syndicate special descriptions.
 #define TRAIT_FREE_GHOST "free_ghost" // Can ghost and return freely with this trait
 #define GLUED_ITEM_TRAIT "glued-item" // This is for glued items, undroppable. Syndie glue applies this.
+/// This makes trait makes it so that the person cannot be infected by the zombie virus.
+#define TRAIT_MUTANT_IMMUNE "mutant_immune"
 
 // Trait sources
 #define GHOSTROLE_TRAIT "ghostrole" // SKYRAT EDIT ADDITION -- Ghost Cafe Traits

code/datums/diseases/advance/symptoms/flesh_eating.dm

@@ -135,5 +135,5 @@ Bonus
 	if(chems)
 		M.reagents.add_reagent_list(list(/datum/reagent/toxin/heparin = 2, /datum/reagent/toxin/lipolicide = 2))
 	if(zombie)
-		M.reagents.add_reagent(/datum/reagent/romerol, 1)
+		M.reagents.add_reagent(/datum/reagent/hnz, 1)
 	return 1

code/game/objects/items/storage/uplink_kits.dm

@@ -541,7 +541,7 @@
 	new/obj/item/toy/crayon/rainbow(src)
 
 /obj/item/storage/box/syndie_kit/romerol/PopulateContents()
-	new /obj/item/reagent_containers/glass/bottle/romerol(src)
+	new /obj/item/reagent_containers/glass/bottle/hnz(src) //SKRYAT EDIT CHANGE
 	new /obj/item/reagent_containers/syringe(src)
 	new /obj/item/reagent_containers/dropper(src)
 

code/modules/antagonists/changeling/powers/panacea.dm

@@ -13,7 +13,10 @@
 	..()
 	var/list/bad_organs = list(
 		user.getorgan(/obj/item/organ/body_egg),
-		user.getorgan(/obj/item/organ/zombie_infection))
+		user.getorgan(/obj/item/organ/zombie_infection)
+		)
+
+	try_to_mutant_cure(user) //SKYRAT EDIT ADDITION
 
 	for(var/o in bad_organs)
 		var/obj/item/organ/O = o

code/modules/surgery/advanced/necrotic_revival.dm

@@ -12,8 +12,7 @@
 
 /datum/surgery/advanced/necrotic_revival/can_start(mob/user, mob/living/carbon/target)
 	. = ..()
-	var/obj/item/organ/zombie_infection/ZI = target.getorganslot(ORGAN_SLOT_ZOMBIE)
-	if(ZI)
+	if(target.GetComponent(/datum/component/mutant_infection)) //SKYRAT EDIT CHANGE
 		return FALSE
 
 /datum/surgery_step/bionecrosis
@@ -32,7 +31,5 @@
 	display_results(user, target, "<span class='notice'>You succeed in growing a romerol tumor on [target]'s brain.</span>",
 		"<span class='notice'>[user] successfully grows a romerol tumor on [target]'s brain!</span>",
 		"<span class='notice'>[user] completes the surgery on [target]'s brain.</span>")
-	if(!target.getorganslot(ORGAN_SLOT_ZOMBIE))
-		var/obj/item/organ/zombie_infection/ZI = new()
-		ZI.Insert(target)
+	try_to_zombie_infect(target) //SKYRAT EDIT CHANGE
 	return ..()

code/modules/surgery/bodyparts/dismemberment.dm

@@ -302,7 +302,6 @@
 	var/obj/item/organ/zombie_infection/ooze = owner.getorganslot(ORGAN_SLOT_ZOMBIE)
 	if(istype(ooze))
 		ooze.transfer_to_limb(src, owner)
-
 	name = "[owner.real_name]'s head"
 	..()
 

modular_skyrat/modules/alerts/code/default_announcer.dm

@@ -35,4 +35,5 @@
 		ANNOUNCER_ELECTRICALSTORM = 'modular_skyrat/modules/alerts/sound/ai/default/estorm.ogg',
 		ANNOUNCER_BRANDINTELLIGENCE = 'modular_skyrat/modules/alerts/sound/ai/default/rampant_brand_int.ogg',
 		ANNOUNCER_SPOOKY = 'modular_skyrat/modules/alerts/sound/ai/default/admin_horror_music.ogg',
-		ANNOUNCER_ERTYES = 'modular_skyrat/modules/alerts/sound/ai/default/yesert.ogg')
+		ANNOUNCER_ERTYES = 'modular_skyrat/modules/alerts/sound/ai/default/yesert.ogg',
+		ANNOUNCER_MUTANTS = 'modular_skyrat/modules/alerts/sound/ai/default/hazdet.ogg')

modular_skyrat/modules/mutants/code/mutant_cure.dm

@@ -0,0 +1,368 @@
+/obj/item/rna_extractor
+	name = "Advanced virus RNA extractor"
+	desc = "A tool used to extract the RNA from viruses. Apply to skin."
+	icon = 'modular_skyrat/modules/mutants/icons/extractor.dmi'
+	icon_state = "extractor"
+	custom_materials = list(/datum/material/iron = 3000, /datum/material/gold = 3000, /datum/material/uranium = 1000, /datum/material/diamond = 1000)
+	var/obj/item/rna_vial/loaded_vial
+
+/obj/item/rna_extractor/attackby(obj/item/O, mob/living/user)
+	if((istype(O, /obj/item/rna_vial) && loaded_vial != null))
+		to_chat(user, "<span class='warning'>[src] can not hold more than one vial!</span>")
+		return FALSE
+	if(istype(O, /obj/item/rna_vial))
+		if(!user.transferItemToLoc(O, src))
+			return FALSE
+		to_chat(user, "<span class='notce'>You insert [O] into [src]!")
+		loaded_vial = O
+		playsound(loc, 'sound/weapons/autoguninsert.ogg', 35, 1)
+		update_appearance()
+
+/obj/item/rna_extractor/attack_self(mob/living/user)
+	if(user.incapacitated())
+		return
+	unload_vial(user)
+
+/obj/item/rna_extractor/afterattack(atom/target, mob/user, proximity_flag, click_parameters)
+	if(!proximity_flag)
+		return
+	if(!ishuman(target))
+		return
+	var/mob/living/carbon/human/H = target
+	if(!loaded_vial)
+		to_chat(user, "<span class='danger'>[src] is empty!</span>")
+		return
+	if(loaded_vial.contains_rna)
+		to_chat(user, "<span class='danger'>[src] already has RNA data in it, upload it to the combinator!</span>")
+		return
+	if(!ismutant(H))
+		to_chat(user, "<span class='danger'>[H] does not register as infected!</span>")
+		return
+	if(H.stat == DEAD)
+		to_chat(user, "<span class='danger'>[src] only works on living targets!</span>")
+		return
+	var/datum/component/mutant_infection/ZI = H.GetComponent(/datum/component/mutant_infection)
+	if(!ZI)
+		to_chat(user, "<span class='danger'>[H] does not register as infected!</span>")
+		return
+	if(ZI.extract_rna())
+		loaded_vial.load_rna(H)
+		to_chat(user, "<span class='notice'>[src] successfully scanned [H], and now holds a sample virus RNA data.</span>")
+		playsound(src.loc, 'sound/effects/spray2.ogg', 50, TRUE, -6)
+		update_appearance()
+	else
+		to_chat(user, "<span class='warning'>[H] has no useable RNA!</span>")
+
+/obj/item/rna_extractor/proc/unload_vial(mob/living/user)
+	if(loaded_vial)
+		loaded_vial.forceMove(user.loc)
+		user.put_in_hands(loaded_vial)
+		to_chat(user, "<span class='notice'>You remove [loaded_vial] from [src].</span>")
+		loaded_vial = null
+		update_appearance()
+		playsound(loc, 'sound/weapons/empty.ogg', 50, 1)
+	else
+		to_chat(user, "<span class='notice'>[src] isn't loaded!</span>")
+		return
+
+/obj/item/rna_extractor/update_overlays()
+	. = ..()
+	if(loaded_vial)
+		. += "extractor_load"
+
+/obj/item/rna_extractor/examine(mob/user)
+	. = ..()
+	if(loaded_vial)
+		. += "It has an extracted RNA sample in it."
+
+/obj/item/rna_extractor/Destroy()
+	. = ..()
+	loaded_vial.forceMove(loc)
+	loaded_vial = null
+
+/obj/item/rna_vial
+	name = "Raw RNA vial"
+	desc = "A glass vial containing raw virus RNA. Slot this into the combinator to upload the sample."
+	icon = 'modular_skyrat/modules/mutants/icons/extractor.dmi'
+	icon_state = "rnavial"
+	custom_materials = list(/datum/material/iron = 1000, /datum/material/glass = 3000, /datum/material/silver = 1000)
+	var/contains_rna = FALSE
+
+/obj/item/rna_vial/proc/load_rna(mob/living/carbon/human/H)
+	contains_rna = TRUE
+	update_appearance()
+
+/obj/item/rna_vial/update_overlays(updates)
+	. = ..()
+	if(contains_rna)
+		. += "rnavial_load"
+
+/obj/item/rna_vial/examine(mob/user)
+	. = ..()
+	if(contains_rna)
+		. += "It has an RNA sample in it."
+
+/obj/item/hnz_cure
+	name = "HNZ-1 Cure Vial"
+	desc = "A counter to the HNZ-1 virus, used to rapidly reverse the effects of the virus."
+	icon = 'modular_skyrat/modules/mutants/icons/extractor.dmi'
+	icon_state = "tvirus_cure"
+	var/used = FALSE
+
+/obj/item/hnz_cure/attack(mob/living/M, mob/living/user, params)
+	. = ..()
+	if(used)
+		to_chat(user, "<span class='danger'>[src] has been used and is useless!</span>")
+		return
+	if(ishuman(M))
+		var/mob/living/carbon/human/H = M
+		if(!H.GetComponent(/datum/component/mutant_infection))
+			to_chat(user, "<span class='danger'>[H] does not register as infected!</span>")
+			return
+		if(do_after(user, 4 SECONDS))
+			cure_target(H)
+			playsound(src.loc, 'sound/effects/spray2.ogg', 50, TRUE, -6)
+			to_chat(user, "<span class='notice'>You inject [H] wth [src]!")
+			used = TRUE
+			update_appearance()
+
+/obj/item/hnz_cure/update_icon_state()
+	. = ..()
+	if(used)
+		icon_state = "tvirus_used"
+
+/obj/item/hnz_cure/proc/cure_target(mob/target)
+	SIGNAL_HANDLER
+
+	SEND_SIGNAL(target, COMSIG_MUTANT_CURED)
+
+
+#define STATUS_IDLE "System Idle"
+#define STATUS_RECOMBINATING_VIRUS "System Synthesising Virus"
+#define STATUS_RECOMBINATING_CURE "System Synthesising Cure"
+#define RECOMBINATION_STEP_TIME 20 SECONDS
+#define RECOMBINATION_STEP_AMOUNT 20
+
+/obj/machinery/rnd/rna_recombinator
+	name = "RNA Recombinator"
+	desc = "This machine is used to recombine RNA sequences from extracted vials of raw virus."
+	icon = 'modular_skyrat/modules/mutants/icons/cure_machine.dmi'
+	icon_state = "h_lathe"
+	base_icon_state = "h_lathe"
+	density = TRUE
+	use_power = IDLE_POWER_USE
+	circuit = /obj/item/circuitboard/machine/rna_recombinator
+	var/status = STATUS_IDLE
+	var/recombination_step_amount = RECOMBINATION_STEP_AMOUNT
+	var/recombination_step_time = RECOMBINATION_STEP_TIME
+	var/cure_progress = 0
+	var/timer_id
+
+/obj/machinery/rnd/rna_recombinator/Destroy()
+	if(timer_id)
+		deltimer(timer_id)
+		timer_id = null
+	. = ..()
+
+/obj/machinery/rnd/rna_recombinator/Insert_Item(obj/item/O, mob/living/user)
+	if(user.combat_mode)
+		return FALSE
+	if(!is_insertion_ready(user))
+		return FALSE
+	if(!istype(O, /obj/item/rna_vial))
+		return FALSE
+	if(!user.transferItemToLoc(O, src))
+		return FALSE
+	loaded_item = O
+	to_chat(user, "<span class='notice'>You insert [O] to into [src] reciprocal.</span>")
+	flick("h_lathe_load", src)
+	update_appearance()
+	playsound(loc, 'sound/weapons/autoguninsert.ogg', 35, 1)
+
+
+/obj/machinery/rnd/rna_recombinator/ui_interact(mob/user)
+	var/obj/item/rna_vial/vial = loaded_item
+	var/list/dat = list("<center>")
+	dat += "<b>System Status: [status]</b>"
+	dat += "System Efficency - Step time: [recombination_step_time / 10] SECONDS | Step percent: [recombination_step_amount]%"
+	if(status != STATUS_IDLE)
+		dat += "<b>Current RNA restructure progress: [cure_progress]%</b>"
+	if(vial)
+		dat += "<b>Loaded RNA vial:</b> [vial]"
+		if(vial.contains_rna)
+			dat += "<b>RNA structure: HNZ-1</b>"
+			dat += "<b><a href='byond://?src=[REF(src)];item=[REF(loaded_item)];function=cure'>Synthesize Cure</A></b>"
+			dat += "<b><a href='byond://?src=[REF(src)];item=[REF(loaded_item)];function=virus'>Synthesize Virus</A></b>"
+		else
+			dat += "RNA structure: <b>ERROR NO RNA</b>"
+		dat += "<b><a href='byond://?src=[REF(src)];function=eject'>Eject</A></b>"
+	else
+		dat += "<b>Nothing loaded.</b>"
+	dat += "<a href='byond://?src=[REF(src)];function=refresh'>Refresh</A>"
+	dat += "<a href='byond://?src=[REF(src)];close=1'>Close</A></center>"
+	var/datum/browser/popup = new(user, "rna_recombinator","RNA Recombinator", 700, 400, src)
+	popup.set_content(dat.Join("<br>"))
+	popup.open()
+	onclose(user, "rna_recombinator")
+
+/obj/machinery/rnd/rna_recombinator/Topic(href, href_list)
+	if(..())
+		return
+	if(machine_stat & (NOPOWER|BROKEN|MAINT))
+		return
+
+	usr.set_machine(src)
+
+	var/operation = href_list["function"]
+	var/obj/item/process = locate(href_list["item"]) in src
+
+	if(href_list["close"])
+		usr << browse(null, "window=rna_recombinator")
+		return
+	else if(operation == "eject")
+		ejectItem()
+	else if(operation == "refresh")
+		updateUsrDialog()
+	else
+		if(status != STATUS_IDLE)
+			to_chat(usr, "<span class='warning'>[src] is currently recombinating!</span>")
+		else if(!loaded_item)
+			to_chat(usr, "<span class='warning'>[src] is not currently loaded!</span>")
+		else if(!process || process != loaded_item) //Interface exploit protection (such as hrefs or swapping items with interface set to old item)
+			to_chat(usr, "<span class='danger'>Interface failure detected in [src]. Please try again.</span>")
+		else
+			if(operation == "virus")
+				status = STATUS_RECOMBINATING_VIRUS
+			else
+				status = STATUS_RECOMBINATING_CURE
+			recombinate_start()
+			use_power(3000)
+
+	updateUsrDialog()
+
+/obj/machinery/rnd/rna_recombinator/proc/ejectItem()
+	if(loaded_item)
+		var/turf/dropturf = get_turf(pick(view(1,src)))
+		if(!dropturf) //Failsafe to prevent the object being lost in the void forever.
+			dropturf = drop_location()
+		loaded_item.forceMove(dropturf)
+		loaded_item = null
+
+/obj/machinery/rnd/rna_recombinator/proc/recombinate_start()
+	if(machine_stat & (NOPOWER|BROKEN))
+		cure_progress = 0
+		status = STATUS_IDLE
+		if(timer_id)
+			deltimer(timer_id)
+			timer_id = null
+		return
+	var/obj/item/rna_vial/vial = loaded_item
+	vial.contains_rna = FALSE
+	vial.update_appearance()
+	ejectItem()
+	playsound(loc, 'sound/items/rped.ogg', 60, 1)
+	flick("h_lathe_wloop", src)
+	use_power(3000)
+	timer_id = addtimer(CALLBACK(src, .proc/recombinate_step), recombination_step_time, TIMER_STOPPABLE)
+
+/obj/machinery/rnd/rna_recombinator/proc/recombinate_step()
+	if(machine_stat & (NOPOWER|BROKEN))
+		cure_progress = 0
+		status = STATUS_IDLE
+		if(timer_id)
+			deltimer(timer_id)
+			timer_id = null
+		return
+	cure_progress += recombination_step_amount
+	if(cure_progress >= 100)
+		recombinate_finish()
+		return
+	flick("h_lathe_wloop", src)
+	use_power(3000)
+	playsound(loc, 'sound/items/rped.ogg', 60, 1)
+	timer_id = addtimer(CALLBACK(src, .proc/recombinate_step), recombination_step_time, TIMER_STOPPABLE)
+
+/obj/machinery/rnd/rna_recombinator/proc/recombinate_finish()
+	if(machine_stat & (NOPOWER|BROKEN))
+		cure_progress = 0
+		status = STATUS_IDLE
+		if(timer_id)
+			deltimer(timer_id)
+			timer_id = null
+		return
+	cure_progress = 0
+	if(status == STATUS_RECOMBINATING_CURE)
+		new /obj/item/hnz_cure(get_turf(src))
+		new /obj/item/hnz_cure(get_turf(src))
+		new /obj/item/hnz_cure(get_turf(src))
+	else
+		new /obj/item/reagent_containers/glass/bottle/hnz/one(get_turf(src))
+	flick("h_lathe_leave", src)
+	use_power(3000)
+	playsound(loc, 'sound/machines/ding.ogg', 60, 1)
+	status = STATUS_IDLE
+
+/obj/machinery/rnd/rna_recombinator/RefreshParts()
+	for(var/obj/item/stock_parts/manipulator/M in component_parts)
+		if(recombination_step_time > 0 && (recombination_step_time - M.rating) >= 1)
+			recombination_step_time -= M.rating
+	for(var/obj/item/stock_parts/scanning_module/M in component_parts)
+		recombination_step_amount += M.rating*2
+	for(var/obj/item/stock_parts/micro_laser/M in component_parts)
+		recombination_step_amount += M.rating
+
+/obj/machinery/rnd/rna_recombinator/update_overlays()
+	. = ..()
+	if(machine_stat & (NOPOWER|BROKEN|MAINT) || !loaded_item)
+		. += "lathe_empty"
+
+#undef STATUS_IDLE
+#undef STATUS_RECOMBINATING_CURE
+#undef STATUS_RECOMBINATING_VIRUS
+#undef RECOMBINATION_STEP_TIME
+#undef RECOMBINATION_STEP_AMOUNT
+
+
+//////////////////////////////Infection stuff - You didn't think I wouldn't include this did you?
+/datum/reagent/hnz
+	name = "HNZ-1"
+	description = "HNZ-1 is a highly experimental viral bioterror agent \
+		which causes dormant nodules to be etched into the grey matter of \
+		the subject. These nodules only become active upon death of the \
+		host, upon which, the secondary structures activate and take control \
+		of the host body."
+	color = "#191dff"
+	metabolization_rate = INFINITY
+	taste_description = "brains"
+	ph = 0.5
+
+/datum/reagent/hnz/expose_mob(mob/living/carbon/human/exposed_mob, methods=TOUCH, reac_volume)
+	. = ..()
+	try_to_mutant_infect(exposed_mob, TRUE)
+
+/obj/item/reagent_containers/glass/bottle/hnz
+	name = "HNZ-1 bottle"
+	desc = "A small bottle of the HNZ-1 pathogen. Nanotrasen Bioweapons inc."
+	icon = 'modular_skyrat/modules/mutants/icons/extractor.dmi'
+	icon_state = "tvirus_infector"
+	list_reagents = list(/datum/reagent/hnz = 30)
+	custom_materials = list(/datum/material/glass=500)
+
+/obj/item/reagent_containers/glass/bottle/hnz/one
+	list_reagents = list(/datum/reagent/hnz = 1)
+
+
+/obj/item/storage/briefcase/hnz
+	name = "HNZ-1 Biocontainer"
+	desc = "An airtight biosealed box containing the highly reactive substance, HNZ1. Authorised personnel only."
+	icon = 'modular_skyrat/modules/mutants/icons/extractor.dmi'
+	icon_state = "tvirus_box"
+	w_class = WEIGHT_CLASS_SMALL
+	max_integrity = 500
+
+/obj/item/storage/briefcase/hnz/PopulateContents()
+	new /obj/item/reagent_containers/glass/bottle/hnz/one(src)
+	new /obj/item/reagent_containers/glass/bottle/hnz/one(src)
+	new /obj/item/circuitboard/machine/rna_recombinator(src)
+	new /obj/item/rna_extractor(src)
+	new /obj/item/rna_vial(src)

modular_skyrat/modules/mutants/code/mutant_datum.dm

@@ -0,0 +1,145 @@
+GLOBAL_LIST_EMPTY(mutant_infection_list) // A list of all mutant_infection organs, for any mass "animation"
+
+#define CURE_TIME 10 SECONDS
+#define REVIVE_TIME_LOWER 2 MINUTES
+#define REVIVE_TIME_UPPER 3 MINUTES
+#define IMMUNITY_LOWER 1 MINUTES
+#define IMMUNITY_UPPER 3 MINUTES
+#define RNA_REFRESH_TIME 2 MINUTES //How soon can we extract more RNA?
+
+/datum/component/mutant_infection
+	var/mob/living/carbon/human/host
+	var/datum/species/old_species = /datum/species/human
+	var/list/mutant_species = list(/datum/species/mutant/infectious/fast, /datum/species/mutant/infectious/slow)
+	var/datum/species/selected_type
+	/// The stage of infection
+	var/list/insanity_phrases = list("You feel too hot! Something isn't right!", "You can't think straight, please end the suffering!", "AAAAAAAAAAAAAAAGHHHHHHHH!")
+	var/timer_id
+	var/rna_extracted = FALSE
+	var/tox_loss_mod = 0.5
+
+/datum/component/mutant_infection/Initialize()
+	. = ..()
+	if(!ishuman(parent))
+		return COMPONENT_INCOMPATIBLE
+	host = parent
+
+	GLOB.mutant_infection_list += src
+
+	if(host.stat == DEAD)
+		var/revive_time = rand(REVIVE_TIME_LOWER, REVIVE_TIME_UPPER)
+		timer_id = addtimer(CALLBACK(src, .proc/transform_host), revive_time, TIMER_STOPPABLE)
+		to_chat(host, "<span class='userdanger'>You feel your veins throb as your body begins twitching...</span>")
+
+	RegisterSignal(parent, COMSIG_MUTANT_CURED, .proc/cure_host)
+
+	START_PROCESSING(SSobj, src)
+
+/datum/component/mutant_infection/Destroy(force, silent)
+	GLOB.mutant_infection_list -= src
+	STOP_PROCESSING(SSobj, src)
+	UnregisterSignal(parent, list(COMSIG_MUTANT_CURED, COMSIG_LIVING_DEATH))
+	if(timer_id)
+		deltimer(timer_id)
+		timer_id = null
+	if(host)
+		if(ismutant(host) && old_species)
+			host.set_species(old_species)
+		host.grab_ghost()
+		host.revive(TRUE, TRUE)
+		to_chat(host, "<span class='greentext'>You feel like you're free of that foul disease!</span>")
+		ADD_TRAIT(host, TRAIT_MUTANT_IMMUNE, "mutant_virus")
+		var/cure_time = rand(IMMUNITY_LOWER, IMMUNITY_UPPER)
+		addtimer(CALLBACK(host, /mob/living/carbon/human/proc/remove_mutant_immunity), cure_time, TIMER_STOPPABLE)
+		host = null
+	return ..()
+
+/datum/component/mutant_infection/proc/extract_rna()
+	if(rna_extracted)
+		return FALSE
+	to_chat(host, "<span class='userdanger'>You feel your genes being altered!</span>")
+	rna_extracted = TRUE
+	addtimer(CALLBACK(src, .proc/refresh_rna), RNA_REFRESH_TIME, TIMER_STOPPABLE)
+	return TRUE
+
+/datum/component/mutant_infection/proc/refresh_rna()
+	rna_extracted = FALSE
+
+/mob/living/carbon/human/proc/remove_mutant_immunity()
+	REMOVE_TRAIT(src, TRAIT_MUTANT_IMMUNE, "mutant_virus")
+
+/datum/component/mutant_infection/process(delta_time)
+	if(!ismutant(host) && host.stat != DEAD)
+		if(host.getToxLoss() < 50)
+			host.adjustToxLoss(tox_loss_mod * delta_time)
+		else
+			host.adjustToxLoss((tox_loss_mod * 2) * delta_time)
+			if(DT_PROB(10, delta_time))
+				var/obj/item/bodypart/wound_area = host.get_bodypart(BODY_ZONE_CHEST)
+				if(wound_area)
+					var/datum/wound/slash/moderate/rotting_wound = new
+					rotting_wound.apply_wound(wound_area)
+				host.emote(pick(list("cough", "sneeze", "scream")))
+	if(timer_id)
+		return
+	if(host.stat != DEAD)
+		return
+	if(!ismutant(host))
+		to_chat(host, "<span class='cultlarge'>You can feel your heart stopping, but something isn't right... \
+		life has not abandoned your broken form. You can only feel a deep and immutable hunger that \
+		not even death can stop, you will rise again!</span>")
+	var/revive_time = rand(REVIVE_TIME_LOWER, REVIVE_TIME_UPPER)
+	to_chat(host, "<span class='redtext'>You will transform in approximately [revive_time/10] seconds.</span>")
+	timer_id = addtimer(CALLBACK(src, .proc/transform_host), revive_time, TIMER_STOPPABLE)
+
+/datum/component/mutant_infection/proc/cure_host()
+	if(!host.stat == DEAD)
+		to_chat(host, "<span class='notice'>You start to feel refreshed and invigorated!</span>")
+	STOP_PROCESSING(SSobj, src)
+	addtimer(CALLBACK(src, .proc/Destroy), CURE_TIME)
+
+/datum/component/mutant_infection/proc/transform_host()
+	timer_id = null
+
+	selected_type = pick(mutant_species)
+
+	if(!ismutant(host))
+		old_species = host.dna.species
+		host.set_species(selected_type)
+
+	var/stand_up = (host.stat == DEAD) || (host.stat == UNCONSCIOUS)
+
+	//Fully heal the mutant's damage the first time they rise
+
+	regenerate()
+
+	host.do_jitter_animation(30)
+	host.visible_message("<span class='danger'>[host] suddenly convulses, as [host.p_they()][stand_up ? " stagger to [host.p_their()] feet and" : ""] gain a ravenous hunger in [host.p_their()] eyes!</span>", "<span class='alien'>You HUNGER!</span>")
+	playsound(host.loc, 'sound/hallucinations/far_noise.ogg', 50, TRUE)
+	if(is_species(host, /datum/species/mutant/infectious/fast))
+		to_chat(host, "<span class='redtext'>You are a FAST zombie. You run fast and hit more quickly, beware however, you are much weaker and susceptible to damage.")
+	else
+		to_chat(host, "<span class='redtext'>You are a SLOW zombie. You walk slowly and hit more slowly and harder. However, you are far more resilient to most damage types.")
+	to_chat(host, "<span class='alertalien'>You are now a mutant! Do not seek to be cured, do not help any non-mutants in any way, do not harm your mutant brethren. You retain some higher functions and can reason to an extent.</span>")
+	RegisterSignal(parent, COMSIG_LIVING_DEATH, .proc/mutant_death)
+
+/datum/component/mutant_infection/proc/mutant_death()
+	var/revive_time = rand(REVIVE_TIME_LOWER, REVIVE_TIME_UPPER)
+	to_chat(host, "<span class='cultlarge'>You can feel your heart stopping, but something isn't right... \
+		life has not abandoned your broken form. You can only feel a deep and immutable hunger that \
+		not even death can stop, you will rise again!</span>")
+	timer_id = addtimer(CALLBACK(src, .proc/regenerate), revive_time, TIMER_STOPPABLE)
+
+/datum/component/mutant_infection/proc/regenerate()
+	to_chat(host, "<span class='notice'>You feel an itching, both inside and \
+		outside as your tissues knit and reknit.</span>")
+	playsound(host, 'sound/magic/demon_consume.ogg', 50, TRUE)
+	if(!host.mind)
+		var/list/candidates = pollCandidatesForMob("Do you want to play as a mutant([host.name])?", M = host)
+		if(!candidates.len)
+			return
+		var/client/C = pick_n_take(candidates)
+		host.key = C.key
+	else
+		host.grab_ghost()
+	host.revive(TRUE, TRUE)

modular_skyrat/modules/mutants/code/mutant_event.dm

@@ -0,0 +1,29 @@
+/datum/round_event_control/mutant_infestation //Admin only
+	name = "HNZ-1 Pathogen Outbreak"
+	typepath = /datum/round_event/mutant_infestation
+	weight = 0
+	dynamic_should_hijack = TRUE
+
+/datum/round_event/mutant_infestation
+	announceWhen = 300
+	announceChance = 100
+	fakeable = TRUE
+	var/infected = 1
+
+/datum/round_event/mutant_infestation/setup()
+	. = ..()
+	infected = rand(1, 2)
+
+/datum/round_event/mutant_infestation/start()
+	. = ..()
+	var/infectees = 0
+	for(var/mob/living/carbon/human/H in shuffle(GLOB.player_list))
+		if(infectees >= infected)
+			break
+		if(try_to_mutant_infect(H, TRUE))
+			infectees++
+			notify_ghosts("[H] has been infected by the HNZ-1 pathogen!", source = H)
+
+/datum/round_event/mutant_infestation/announce(fake)
+	alert_sound_to_playing(sound('modular_skyrat/modules/alerts/sound/alert1.ogg'))
+	priority_announce("Automated air filtration screeing systems have flagged an unknown pathogen in the ventilation systems, quarantine is in effect.", "Level-1 Viral Biohazard Alert", ANNOUNCER_MUTANTS)

modular_skyrat/modules/mutants/code/mutant_species.dm

@@ -0,0 +1,199 @@
+#define REGENERATION_DELAY 5 SECONDS  // After taking damage, how long it takes for automatic regeneration to begin
+
+/datum/species/mutant
+	name = "High-Functioning mutant"
+	id = "mutant"
+	say_mod = "moans"
+	meat = /obj/item/food/meat/slab/human/mutant/zombie
+	species_traits = list(NOBLOOD,NOZOMBIE,HAS_FLESH,HAS_BONE,NOEYESPRITES,LIPS,HAIR)
+	inherent_traits = list(TRAIT_NODISMEMBER,TRAIT_ADVANCEDTOOLUSER,TRAIT_NOMETABOLISM,TRAIT_TOXIMMUNE,TRAIT_RESISTCOLD,TRAIT_RESISTHIGHPRESSURE,TRAIT_RESISTLOWPRESSURE,TRAIT_RADIMMUNE,TRAIT_LIMBATTACHMENT,TRAIT_NOBREATH,TRAIT_NOCLONELOSS)
+	inherent_biotypes = MOB_UNDEAD|MOB_HUMANOID
+	mutanttongue = /obj/item/organ/tongue/zombie
+	var/static/list/spooks = list('sound/hallucinations/growl1.ogg','sound/hallucinations/growl2.ogg','sound/hallucinations/growl3.ogg','sound/hallucinations/veryfar_noise.ogg','sound/hallucinations/wail.ogg')
+	disliked_food = NONE
+	liked_food = GROSS | MEAT | RAW
+	changesource_flags = MIRROR_BADMIN | WABBAJACK | MIRROR_PRIDE | ERT_SPAWN
+	bodytemp_normal = T0C // They have no natural body heat, the environment regulates body temp
+	bodytemp_heat_damage_limit = FIRE_MINIMUM_TEMPERATURE_TO_SPREAD // Take damage at fire temp
+	bodytemp_cold_damage_limit = MINIMUM_TEMPERATURE_TO_MOVE // take damage below minimum movement temp
+	limbs_icon = 'modular_skyrat/modules/mutants/icons/mutant_parts_greyscale.dmi'
+
+/datum/species/mutant/check_roundstart_eligible()
+	if(SSevents.holidays && SSevents.holidays[HALLOWEEN])
+		return TRUE
+	return ..()
+
+/mob/living/carbon/human/species/mutant
+	race = /datum/species/mutant
+
+/mob/living/carbon/human/species/mutant/infectious
+	race = /datum/species/mutant/infectious
+
+/datum/species/mutant/infectious
+	name = "Mutated Abomination"
+	mutanthands = /obj/item/mutant_hand
+	armor = 10
+	speedmod = 1
+	mutanteyes = /obj/item/organ/eyes/night_vision/zombie
+	changesource_flags = MIRROR_BADMIN | WABBAJACK | ERT_SPAWN
+	/// The rate the mutants regenerate at
+	var/heal_rate = 1
+	/// The cooldown before the mutant can start regenerating
+	COOLDOWN_DECLARE(regen_cooldown)
+
+/datum/species/mutant/infectious/fast
+	name = "Fast Mutated Abomination"
+	mutanthands = /obj/item/mutant_hand/fast
+	armor = 0
+	speedmod = 0.5
+	/// The rate the mutants regenerate at
+	heal_rate = 0.5
+	/// The cooldown before the mutant can start regenerating
+
+/datum/species/mutant/infectious/slow
+	name = "Slow Mutated Abomination"
+	armor = 30
+	speedmod = 2
+	/// The rate the mutants regenerate at
+	heal_rate = 2
+	/// The cooldown before the mutant can start regenerating
+
+/// mutants do not stabilize body temperature they are the walking dead and are cold blooded
+/datum/species/mutant/body_temperature_core(mob/living/carbon/human/humi, delta_time, times_fired)
+	return
+
+/datum/species/mutant/infectious/check_roundstart_eligible()
+	return FALSE
+
+/datum/species/mutant/infectious/spec_stun(mob/living/carbon/human/H,amount)
+	. = min(20, amount)
+
+/datum/species/mutant/infectious/apply_damage(damage, damagetype = BRUTE, def_zone = null, blocked, mob/living/carbon/human/H, spread_damage = FALSE, forced = FALSE, wound_bonus = 0, bare_wound_bonus = 0, sharpness = NONE)
+	. = ..()
+	if(.)
+		COOLDOWN_START(src, regen_cooldown, REGENERATION_DELAY)
+
+/datum/species/mutant/infectious/spec_life(mob/living/carbon/C, delta_time, times_fired)
+	. = ..()
+	C.set_combat_mode(TRUE) // THE SUFFERING MUST FLOW
+
+	//mutants never actually die, they just fall down until they regenerate enough to rise back up.
+	//They must be restrained, beheaded or gibbed to stop being a threat.
+	if(COOLDOWN_FINISHED(src, regen_cooldown))
+		var/heal_amt = heal_rate
+		if(HAS_TRAIT(C, TRAIT_CRITICAL_CONDITION))
+			heal_amt *= 2
+		C.heal_overall_damage(heal_amt * delta_time, heal_amt * delta_time)
+		C.adjustStaminaLoss(-heal_amt * delta_time)
+		C.adjustToxLoss(-heal_amt * delta_time)
+		for(var/i in C.all_wounds)
+			var/datum/wound/iter_wound = i
+			if(DT_PROB(2-(iter_wound.severity/2), delta_time))
+				iter_wound.remove_wound()
+	if(!HAS_TRAIT(C, TRAIT_CRITICAL_CONDITION) && DT_PROB(2, delta_time))
+		playsound(C, pick(spooks), 50, TRUE, 10)
+
+#undef REGENERATION_DELAY
+
+/mob/living/carbon/human/canBeHandcuffed()
+	if(is_species(src, /datum/species/mutant/infectious))
+		return FALSE
+	else
+		. = ..()
+
+/obj/item/mutant_hand
+	name = "mutant claw"
+	desc = "A mutant's claw is its primary tool, capable of infecting \
+		humans, butchering all other living things to \
+		sustain the mutant, smashing open airlock doors and opening \
+		child-safe caps on bottles."
+	item_flags = ABSTRACT | DROPDEL
+	resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
+	icon = 'icons/effects/blood.dmi'
+	icon_state = "bloodhand_left"
+	var/icon_left = "bloodhand_left"
+	var/icon_right = "bloodhand_right"
+	hitsound = 'sound/hallucinations/growl1.ogg'
+	force = 30
+	sharpness = SHARP_EDGED
+	wound_bonus = -20
+	bare_wound_bonus = 20
+	damtype = BRUTE
+
+/obj/item/mutant_hand/fast
+	name = "weak mutant claw"
+	force = 21
+	sharpness = NONE
+	wound_bonus = -40
+	bare_wound_bonus = 0
+
+/obj/item/mutant_hand/Initialize()
+	. = ..()
+	ADD_TRAIT(src, TRAIT_NODROP, HAND_REPLACEMENT_TRAIT)
+
+/obj/item/mutant_hand/equipped(mob/user, slot)
+	. = ..()
+	//these are intentionally inverted
+	var/i = user.get_held_index_of_item(src)
+	if(!(i % 2))
+		icon_state = icon_left
+	else
+		icon_state = icon_right
+
+/obj/item/mutant_hand/afterattack(atom/target, mob/user, proximity_flag)
+	. = ..()
+	if(!proximity_flag)
+		return
+	else if(isliving(target))
+		if(ishuman(target))
+			try_to_mutant_infect(target, user = user)
+		else
+			check_feast(target, user)
+
+#define INFECT_CHANCE 50
+
+/proc/try_to_mutant_infect(mob/living/carbon/human/target, forced = FALSE, mob/user)
+	CHECK_DNA_AND_SPECIES(target)
+
+	if(forced)
+		target.AddComponent(/datum/component/mutant_infection)
+
+	if(NOZOMBIE in target.dna.species.species_traits)
+		// cannot infect any NOZOMBIE subspecies (such as high functioning
+		// mutants)
+		return FALSE
+
+	if(target.GetComponent(/datum/component/mutant_infection))
+		return FALSE
+
+	if(!target.can_inject(user))
+		return FALSE
+
+	if(prob(INFECT_CHANCE))
+		return FALSE
+
+	if(HAS_TRAIT(target, TRAIT_MUTANT_IMMUNE))
+		return FALSE
+
+	target.AddComponent(/datum/component/mutant_infection)
+	return TRUE
+
+#undef INFECT_CHANCE
+
+/proc/try_to_mutant_cure(mob/living/carbon/target) //For things like admin procs
+	var/datum/component/mutant_infection/infection = target.GetComponent(/datum/component/mutant_infection)
+	if(infection)
+		qdel(infection)
+
+/obj/item/mutant_hand/proc/check_feast(mob/living/target, mob/living/user)
+	if(target.stat == DEAD)
+		var/hp_gained = target.maxHealth
+		target.gib()
+		// zero as argument for no instant health update
+		user.adjustBruteLoss(-hp_gained, 0)
+		user.adjustToxLoss(-hp_gained, 0)
+		user.adjustFireLoss(-hp_gained, 0)
+		user.adjustCloneLoss(-hp_gained, 0)
+		user.updatehealth()
+		user.adjustOrganLoss(ORGAN_SLOT_BRAIN, -hp_gained) // Zom Bee gibbers "BRAAAAISNSs!1!"
+		user.set_nutrition(min(user.nutrition + hp_gained, NUTRITION_LEVEL_FULL))

modular_skyrat/modules/mutants/code/mutant_techweb.dm

@@ -0,0 +1,44 @@
+/obj/item/circuitboard/machine/rna_recombinator
+	name = "RNA Recombinator (Machine Board)"
+	icon_state = "science"
+	build_path = /obj/machinery/rnd/rna_recombinator
+	req_components = list(
+		/obj/item/stock_parts/scanning_module = 1,
+		/obj/item/stock_parts/manipulator = 2,
+		/obj/item/stock_parts/micro_laser = 2)
+
+/datum/techweb_node/mutanttech
+	id = "mutanttech"
+	display_name = "Advanced Nanotrasen Viral Bioweapons Technology"
+	description = "Research devices from the Nanotrasen viral bioweapons division! Got a virus problem? This'll save your day."
+	prereq_ids = list("adv_engi", "adv_biotech")
+	design_ids = list("rna_vial", "rna_extractor", "rna_recombinator")
+	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = 4000)
+
+/datum/design/rna_vial
+	name = "Empty RNA vial"
+	desc = "An empty RNA vial for storing genetic information."
+	id = "rna_vial"
+	build_type = PROTOLATHE
+	materials = list(/datum/material/iron = 1000, /datum/material/glass = 3000, /datum/material/silver = 1000)
+	build_path = /obj/item/rna_vial
+	category = list("Equipment")
+	departmental_flags = DEPARTMENTAL_FLAG_SCIENCE | DEPARTMENTAL_FLAG_MEDICAL
+
+/datum/design/rna_extractor
+	name = "Empty RNA vial"
+	desc = "An RNA extraction device, use this on any subect you'd like to extract RNA data from, needs RNA vials to work."
+	id = "rna_extractor"
+	build_type = PROTOLATHE
+	materials = list(/datum/material/iron = 3000, /datum/material/gold = 3000, /datum/material/uranium = 1000, /datum/material/diamond = 1000)
+	build_path = /obj/item/rna_extractor
+	category = list("Equipment")
+	departmental_flags = DEPARTMENTAL_FLAG_SCIENCE | DEPARTMENTAL_FLAG_MEDICAL
+
+/datum/design/board/rna_recombinator
+	name = "Machine Design (RNA Recombinator)"
+	desc = "The MRNA Recombinator is one of Nanotrasens most advanced technologies and allows the exact recombination of virus RNA."
+	id = "rna_recombinator"
+	build_path = /obj/item/circuitboard/machine/rna_recombinator
+	category = list("Research Machinery")
+	departmental_flags = DEPARTMENTAL_FLAG_ENGINEERING | DEPARTMENTAL_FLAG_SCIENCE | DEPARTMENTAL_FLAG_MEDICAL

modular_skyrat/modules/mutants/readme.md

@@ -0,0 +1,23 @@
+## Title: HNZ1 Mutants
+
+MODULE ID: MUTANTS
+
+### Description:
+
+https://github.com/Skyrat-SS13/Skyrat-tg/pull/4664
+
+### TG Proc Changes:
+
+- N/A
+
+### Master file additions
+
+- N/A
+
+### Included files that are not contained in this module:
+
+- N/A
+
+### Credits:
+
+Gandalf2k15 - Original Creator

tgstation.dme

@@ -161,6 +161,7 @@
 #include "code\__DEFINES\~skyrat_defines\gun.dm"
 #include "code\__DEFINES\~skyrat_defines\integrated_electronics.dm"
 #include "code\__DEFINES\~skyrat_defines\inventory.dm"
+#include "code\__DEFINES\~skyrat_defines\is_helpers.dm"
 #include "code\__DEFINES\~skyrat_defines\jobs.dm"
 #include "code\__DEFINES\~skyrat_defines\keybindings.dm"
 #include "code\__DEFINES\~skyrat_defines\logging.dm"
@@ -3697,6 +3698,11 @@
 #include "modular_skyrat\modules\autotransfer\code\autotransfer_config.dm"
 #include "modular_skyrat\modules\autotransfer\code\shuttle.dm"
 #include "modular_skyrat\modules\banning\code\skyrat_bans.dm"
+#include "modular_skyrat\modules\mutants\code\mutant_cure.dm"
+#include "modular_skyrat\modules\mutants\code\mutant_datum.dm"
+#include "modular_skyrat\modules\mutants\code\mutant_event.dm"
+#include "modular_skyrat\modules\mutants\code\mutant_species.dm"
+#include "modular_skyrat\modules\mutants\code\mutant_techweb.dm"
 #include "modular_skyrat\modules\biohazard_blob\code\_biohazard_blob_defines.dm"
 #include "modular_skyrat\modules\biohazard_blob\code\biohazard_blob_controller.dm"
 #include "modular_skyrat\modules\biohazard_blob\code\biohazard_blob_disease.dm"