Replaces random disease with necrosis

code/modules/reagents/chemistry/reagents/medicine.dm

@@ -643,25 +643,26 @@
 					ghost << sound('sound/effects/genetics.ogg')
 					M.visible_message("<span class='notice'>[M] doesn't appear to respond, perhaps try again later?</span>")
 				if(!M.suiciding && !ghost && !(NOCLONE in M.mutations))
+					var/time_dead = world.time - M.timeofdeath
 					M.visible_message("<span class='warning'>[M] seems to rise from the dead!</span>")
 					M.setOxyLoss(0)
 					M.adjustBruteLoss(rand(0,15))
 					M.adjustToxLoss(rand(0,15))
 					M.adjustFireLoss(rand(0,15))
-					if(ishuman(M) && M.mind && prob(10)) // To prevent people from using this on monkies to cause pandemics
+					if(ishuman(M))
 						var/mob/living/carbon/human/H = M
-						// Their body is being suffused with magical life-inducing stuff - so other things get lively, too
-						// Things are going to get interesting for the reviving party, too
-						var/virus_type = pick(list(
-							/datum/disease/advance/flu,
-							/datum/disease/advance/cold,
-							/datum/disease/brainrot,
-							/datum/disease/magnitis,
-							/datum/disease/fake_gbs, // honk
-							/datum/disease/cold9
-						))
-						var/datum/disease/D = new virus_type()
-						H.AddDisease(D)
+						var/necrosis_prob = 40 * min((20 MINUTES), max((time_dead - (1 MINUTES)), 0)) / ((20 MINUTES) - (1 MINUTES))
+						to_chat(world, "Necrosis prob: [necrosis_prob]")
+						for(var/obj/item/organ/O in (H.organs | H.internal_organs))
+							// Per non-vital body part:
+							// 0% chance of necrosis within 1 minute of death
+							// 40% chance of necrosis after 20 minutes of death
+							if(!O.vital && prob(necrosis_prob))
+								// side effects may include: Organ failure
+								O.necrotize(FALSE)
+								if(O.status & ORGAN_DEAD)
+									O.germ_level = INFECTION_LEVEL_THREE
+						H.update_body()
 
 					M.update_revive()
 					M.stat = UNCONSCIOUS

code/modules/surgery/organs/organ.dm

@@ -66,7 +66,7 @@ var/list/organ_cache = list()
 			blood_DNA = list()
 		blood_DNA[dna.unique_enzymes] = dna.b_type
 
-/obj/item/organ/proc/die()
+/obj/item/organ/proc/necrotize(update_sprite=TRUE)
 	if(status & ORGAN_ROBOT)
 		return
 	damage = max_damage
@@ -105,10 +105,10 @@ var/list/organ_cache = list()
 		if(germ_level >= INFECTION_LEVEL_TWO)
 			germ_level += rand(2,6)
 		if(germ_level >= INFECTION_LEVEL_THREE)
-			die()
+			necrotize()
 
 		if(damage >= max_damage)
-			die()
+			necrotize()
 
 	else if(owner.bodytemperature >= 170)	//cryo stops germs from moving and doing their bad stuffs
 		//** Handle antibiotics and curing infections
@@ -117,7 +117,7 @@ var/list/organ_cache = list()
 
 	//check if we've hit max_damage
 	if(damage >= max_damage)
-		die()
+		necrotize()
 
 /obj/item/organ/proc/is_preserved()
 	if(istype(loc,/obj/item/device/mmi))

code/modules/surgery/organs/organ_external.dm

@@ -68,6 +68,19 @@
 	var/can_stand
 	var/wound_cleanup_timer
 
+/obj/item/organ/external/necrotize(update_sprite=TRUE)
+	if(status & (ORGAN_ROBOT|ORGAN_DEAD))
+		return
+	to_chat(owner, "<span class='notice'>You can't feel your [name] anymore...</span>")
+	status |= ORGAN_DEAD
+	if(dead_icon)
+		icon_state = dead_icon
+	if(owner)
+		owner.update_body(update_sprite)
+		owner.bad_external_organs |= src
+		if(vital)
+			owner.death()
+
 /obj/item/organ/external/Destroy()
 	if(parent && parent.children)
 		parent.children -= src
@@ -541,10 +554,7 @@ Note that amputating the affected organ does in fact remove the infection from t
 					parent.germ_level++
 
 	if(germ_level >= INFECTION_LEVEL_THREE && antibiotics < 30)	//overdosing is necessary to stop severe infections
-		if(!(status & ORGAN_DEAD))
-			status |= ORGAN_DEAD
-			to_chat(owner, "<span class='notice'>You can't feel your [name] anymore...</span>")
-			owner.update_body(1)
+		necrotize()
 
 		germ_level++
 		owner.adjustToxLoss(1)