Merge pull request #14591 from zeroisthebiggay/deathrattles

ports deathrattle implants but without mob statchange because i am not gonna port that today

code/__DEFINES/dcs/signals.dm

@@ -455,6 +455,10 @@
 // /datum/mutation signals
 #define COMSIG_HUMAN_MUTATION_LOSS "human_mutation_loss"		//from datum/mutation/human/on_losing(): (datum/mutation/human/lost_mutation)
 
+///from base of mob/living/death(): (gibbed)
+// Sent before any of the other death code has run, mob is still alive.
+#define COMSIG_LIVING_PREDEATH "living_predeath"
+
 /*******Component Specific Signals*******/
 //Janitor
 #define COMSIG_TURF_IS_WET "check_turf_wet"							//(): Returns bitflags of wet values.

code/game/objects/items/implants/implant_deathrattle.dm

@@ -0,0 +1,74 @@
+/datum/deathrattle_group
+	var/name
+	var/list/datum/weakref/implant_refs = list()
+
+/datum/deathrattle_group/New()
+	// Give the group a unique name for debugging, and possible future
+	// use for making custom linked groups.
+	name = "[rand(100,999)] [pick(GLOB.phonetic_alphabet)]"
+
+/datum/deathrattle_group/proc/rattle(obj/item/implant/deathrattle/origin, mob/living/owner)
+	var/name = owner.mind ? owner.mind.name : owner.real_name
+	var/area = get_area_name(get_turf(owner))
+
+	for(var/r in implant_refs)
+		var/datum/weakref/R = r
+
+		var/obj/item/implant/deathrattle/implant = R.resolve()
+		if(!implant || implant == origin)
+			continue
+
+		// Not all the implants may be actually implanted in people.
+		if(!implant.imp_in)
+			continue
+
+		// Deliberately the same message framing as nanite message + ghost deathrattle
+		var/mob/living/recipient = implant.imp_in
+		to_chat(recipient, "<i>You hear a strange, robotic voice in your head...</i> \"<span class='robot'><b>[name]</b> has died at <b>[area]</b>.</span>\"")
+		SEND_SOUND(recipient, pick(
+		'sound/items/knell1.ogg',
+		'sound/items/knell2.ogg',
+		'sound/items/knell3.ogg',
+		'sound/items/knell4.ogg',
+		))
+
+/datum/deathrattle_group/proc/register(obj/item/implant/deathrattle/implant)
+	implant.group = src
+	implant_refs += WEAKREF(implant)
+
+
+/obj/item/implant/deathrattle
+	name = "deathrattle implant"
+	desc = "Hope no one else dies, prepare for when they do."
+
+	activated = FALSE
+
+	var/datum/deathrattle_group/group = null
+
+/obj/item/implant/deathrattle/Destroy()
+	group = null
+	return ..()
+
+/obj/item/implant/deathrattle/can_be_implanted_in(mob/living/target)
+	// Can be implanted in anything that's a mob. Syndicate cyborgs, talking fish, humans...
+	return TRUE
+
+/obj/item/implant/deathrattle/proc/on_predeath(datum/source, gibbed)
+	SIGNAL_HANDLER
+
+	if(group)
+		group.rattle(origin = src, owner = source)
+
+/obj/item/implant/deathrattle/implant(mob/living/target, mob/user, silent = FALSE, force = FALSE)
+	. = ..()
+	if(.)
+		RegisterSignal(target, COMSIG_LIVING_PREDEATH, .proc/on_predeath)
+
+		if(!group)
+			to_chat(target, "<i>You hear a strange, robotic voice in your head...</i> \"<span class='robot'>Warning: No other linked implants detected.</span>\"")
+
+
+/obj/item/implantcase/deathrattle
+	name = "implant case - 'Deathrattle'"
+	desc = "A glass case containing a deathrattle implant."
+	imp_type = /obj/item/implant/deathrattle

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

@@ -546,3 +546,21 @@
 	. = ..()
 	new /obj/item/cardpack/syndicate(src)
 	new /obj/item/cardpack/syndicate(src)
+
+/obj/item/storage/box/syndie_kit/imp_deathrattle
+	name = "deathrattle implant box"
+	desc = "Contains eight linked deathrattle implants."
+
+/obj/item/storage/box/syndie_kit/imp_deathrattle/PopulateContents()
+	new /obj/item/implanter(src)
+
+	var/datum/deathrattle_group/group = new
+
+	var/implants = list()
+	for(var/j in 1 to 8)
+		var/obj/item/implantcase/deathrattle/case = new (src)
+		implants += case.imp
+
+	for(var/i in implants)
+		group.register(i)
+	desc += " The implants are registered to the \"[group.name]\" group."

code/modules/mob/living/death.dm

@@ -55,6 +55,8 @@
 
 
 /mob/living/death(gibbed)
+	SEND_SIGNAL(src, COMSIG_LIVING_PREDEATH, gibbed)
+
 	stat = DEAD
 	unset_machine()
 	timeofdeath = world.time

code/modules/uplink/uplink_items/uplink_implants.dm

@@ -22,6 +22,17 @@
 	cost = 12
 	include_modes = list(/datum/game_mode/nuclear, /datum/game_mode/nuclear/clown_ops)
 
+/datum/uplink_item/implants/deathrattle
+	name = "Box of Deathrattle Implants"
+	desc = "A collection of implants (and one reusable implanter) that should be injected into the team. When one of the team \
+	dies, all other implant holders recieve a mental message informing them of their teammates' name \
+	and the location of their death. Unlike most implants, these are designed to be implanted \
+	in any creature, biological or mechanical."
+	item = /obj/item/storage/box/syndie_kit/imp_deathrattle
+	cost = 4
+	surplus = 0
+	include_modes = list(/datum/game_mode/nuclear, /datum/game_mode/nuclear/clown_ops)
+
 /datum/uplink_item/implants/freedom
 	name = "Freedom Implant"
 	desc = "An implant injected into the body and later activated at the user's will. It will attempt to free the \