Vitals sensors are now handled by an accessory.

code/__defines/items_clothing.dm

@@ -17,6 +17,7 @@
 #define ACCESSORY_SLOT_ARMOR_M  "Misc armor"
 #define ACCESSORY_SLOT_HELM_C	"Helmet cover"
 #define ACCESSORY_SLOT_OVER     "Over"
+#define ACCESSORY_SLOT_SENSORS  "Suit Sensors"
 
 // Bitmasks for the flags_inv variable. These determine when a piece of clothing hides another, i.e. a helmet hiding glasses.
 // WARNING: The following flags apply only to the external suit!
@@ -155,14 +156,10 @@
 #define THROWNOBJ_KNOCKBACK_DIVISOR 2  // Affects how much speed the mob is knocked back with.
 
 // Suit sensor levels
-#define SUIT_SENSOR_OFF      0
-#define SUIT_SENSOR_BINARY   1
-#define SUIT_SENSOR_VITAL    2
-#define SUIT_SENSOR_TRACKING 3
-
-#define SUIT_NO_SENSORS      0
-#define SUIT_HAS_SENSORS     1
-#define SUIT_LOCKED_SENSORS  2
+#define VITALS_SENSOR_OFF      0
+#define VITALS_SENSOR_BINARY   1
+#define VITALS_SENSOR_VITAL    2
+#define VITALS_SENSOR_TRACKING 3
 
 // Hair Flags
 #define VERY_SHORT           BITFLAG(0)

code/_global_vars/lists/clothing.dm

@@ -35,3 +35,7 @@ var/global/list/abstract_inventory_slots = list(
 	slot_underpants_str,
 	slot_socks_str
 )
+
+var/global/list/vitals_sensor_equip_slots = list(
+	slot_w_uniform_str
+)

code/datums/extensions/multitool/items/clothing.dm

@@ -1,13 +1,18 @@
-/obj/item/clothing/under/Initialize()
+/obj/item/clothing/Initialize()
 	. = ..()
-	set_extension(src, /datum/extension/interactive/multitool/items/clothing)
+	if(ACCESSORY_SLOT_SENSORS in valid_accessory_slots)
+		set_extension(src, /datum/extension/interactive/multitool/items/clothing)
 
 /datum/extension/interactive/multitool/items/clothing/interact(var/obj/item/multitool/M, var/mob/user)
 	if(extension_status(user) != STATUS_INTERACTIVE)
 		return
-	var/obj/item/clothing/under/u = holder
-	if(u.has_sensor == SUIT_NO_SENSORS)
-		to_chat(user, SPAN_WARNING("\The [u] doesn't have suit sensors."))
+	var/obj/item/clothing/uniform = holder
+	if(!istype(uniform))
+		to_chat(user, SPAN_WARNING("\The [user] is not wearing an appropriate uniform."))
 		return
-	u.has_sensor = u.has_sensor == SUIT_LOCKED_SENSORS ? SUIT_HAS_SENSORS : SUIT_LOCKED_SENSORS
-	user.visible_message(SPAN_NOTICE("\The [user] [u.has_sensor == SUIT_LOCKED_SENSORS ? "" : "un"]locks \the [u]'s suit sensor controls."), range = 2)
+	var/obj/item/clothing/accessory/vitals_sensor/sensor = locate() in uniform.accessories
+	if(!sensor)
+		to_chat(user, SPAN_WARNING("\The [uniform] doesn't have a vitals sensors attached."))
+		return
+	sensor.sensors_locked = !sensor.sensors_locked
+	user.visible_message(SPAN_NOTICE("\The [user] [sensor.sensors_locked ? "" : "un"]locks \the [user]'s suit sensor controls."), range = 2)

code/datums/outfits/_defines.dm

@@ -3,6 +3,7 @@
 #define OUTFIT_HAS_BACKPACK                  BITFLAG(1)
 #define OUTFIT_EXTENDED_SURVIVAL             BITFLAG(2)
 #define OUTFIT_RESET_EQUIPMENT               BITFLAG(3)
+#define OUTFIT_HAS_VITALS_SENSOR             BITFLAG(4)
 
 #define OUTFIT_ADJUSTMENT_SKIP_POST_EQUIP    BITFLAG(0)
 #define OUTFIT_ADJUSTMENT_SKIP_SURVIVAL_GEAR BITFLAG(1)

code/datums/outfits/jobs/generic.dm

@@ -23,7 +23,7 @@
 	shoes = /obj/item/clothing/shoes/workboots
 	pda_type = /obj/item/modular_computer/pda/engineering
 	pda_slot = slot_l_store_str
-	flags = OUTFIT_HAS_BACKPACK|OUTFIT_EXTENDED_SURVIVAL
+	outfit_flags = OUTFIT_HAS_BACKPACK | OUTFIT_EXTENDED_SURVIVAL | OUTFIT_HAS_VITALS_SENSOR
 
 /decl/hierarchy/outfit/job/generic/engineer/Initialize()
 	. = ..()

code/datums/outfits/jobs/job.dm

@@ -11,4 +11,4 @@
 	pda_slot = slot_belt_str
 	pda_type = /obj/item/modular_computer/pda
 
-	flags = OUTFIT_HAS_BACKPACK
+	outfit_flags = OUTFIT_HAS_BACKPACK | OUTFIT_HAS_VITALS_SENSOR

code/datums/outfits/misc.dm

@@ -6,7 +6,7 @@
 	uniform = /obj/item/clothing/under/color/grey
 	back = /obj/item/tank/jetpack/oxygen
 	mask = /obj/item/clothing/mask/breath
-	flags = OUTFIT_HAS_JETPACK|OUTFIT_RESET_EQUIPMENT
+	outfit_flags = OUTFIT_HAS_JETPACK|OUTFIT_RESET_EQUIPMENT
 
 /decl/hierarchy/outfit/soviet_soldier
 	name = "Soviet soldier"
@@ -35,7 +35,7 @@
 	l_ear =  /obj/item/radio/headset
 	uniform = /obj/item/clothing/under/clown
 	l_pocket = /obj/item/bikehorn
-	flags = OUTFIT_HAS_BACKPACK|OUTFIT_RESET_EQUIPMENT
+	outfit_flags = OUTFIT_HAS_BACKPACK | OUTFIT_RESET_EQUIPMENT | OUTFIT_HAS_VITALS_SENSOR
 
 /decl/hierarchy/outfit/clown/Initialize()
 	. = ..()

code/datums/outfits/outfit.dm

@@ -53,7 +53,7 @@ var/global/list/outfits_decls_by_type_
 	var/id_pda_assignment
 
 	var/list/backpack_overrides
-	var/flags = OUTFIT_RESET_EQUIPMENT
+	var/outfit_flags = OUTFIT_RESET_EQUIPMENT
 
 /decl/hierarchy/outfit/Initialize()
 	. = ..()
@@ -62,12 +62,29 @@ var/global/list/outfits_decls_by_type_
 		outfits_decls_by_type_[type] = src
 		dd_insertObjectList(outfits_decls_, src)
 
+// This proc is structured slightly strangely because I will be adding pants to it.
+/decl/hierarchy/outfit/validate()
+	. = ..()
+	if(uniform && (outfit_flags & OUTFIT_HAS_VITALS_SENSOR))
+		if(!ispath(uniform, /obj/item/clothing))
+			. += "outfit is flagged for sensors, but uniform cannot take accessories"
+		var/succeeded = FALSE
+		var/obj/item/sensor = new /obj/item/clothing/accessory/vitals_sensor
+		if(uniform)
+			var/obj/item/clothing/wear_uniform = new uniform // sadly we need to read a list
+			if(wear_uniform.can_attach_accessory(sensor))
+				succeeded = TRUE
+			qdel(wear_uniform)
+		if(!succeeded)
+			. += "outfit is flagged for sensors, but uniform do not accept sensors"
+		qdel(sensor)
+
 /decl/hierarchy/outfit/proc/pre_equip(mob/living/carbon/human/H)
-	if(flags & OUTFIT_RESET_EQUIPMENT)
+	if(outfit_flags & OUTFIT_RESET_EQUIPMENT)
 		H.delete_inventory(TRUE)
 
 /decl/hierarchy/outfit/proc/post_equip(mob/living/carbon/human/H)
-	if(flags & OUTFIT_HAS_JETPACK)
+	if(outfit_flags & OUTFIT_HAS_JETPACK)
 		var/obj/item/tank/jetpack/J = locate(/obj/item/tank/jetpack) in H
 		if(!J)
 			return
@@ -85,6 +102,16 @@ var/global/list/outfits_decls_by_type_
 	if(!(OUTFIT_ADJUSTMENT_SKIP_POST_EQUIP & equip_adjustments))
 		post_equip(H)
 
+	if(outfit_flags & OUTFIT_HAS_VITALS_SENSOR)
+		var/obj/item/clothing/accessory/vitals_sensor/sensor = new(get_turf(H))
+		for(var/check_slot in global.vitals_sensor_equip_slots)
+			var/obj/item/clothing/equipped = H.get_equipped_item(check_slot)
+			if(istype(equipped) && !(locate(/obj/item/clothing/accessory/vitals_sensor) in equipped.accessories) && equipped.can_attach_accessory(sensor))
+				equipped.attach_accessory(null, sensor)
+				break
+		if(isturf(sensor))
+			H.put_in_hands(sensor)
+
 	return 1
 
 /decl/hierarchy/outfit/proc/equip_base(mob/living/carbon/human/H, var/equip_adjustments)
@@ -137,7 +164,7 @@ var/global/list/outfits_decls_by_type_
 	for(var/hand in hands)
 		H.put_in_hands(new hand(H))
 
-	if((flags & OUTFIT_HAS_BACKPACK) && !(OUTFIT_ADJUSTMENT_SKIP_BACKPACK & equip_adjustments))
+	if((outfit_flags & OUTFIT_HAS_BACKPACK) && !(OUTFIT_ADJUSTMENT_SKIP_BACKPACK & equip_adjustments))
 		var/decl/backpack_outfit/bo
 		var/metadata
 
@@ -158,7 +185,7 @@ var/global/list/outfits_decls_by_type_
 				H.equip_to_slot_or_del(backpack, slot_back_str)
 
 	if(H.species && !(OUTFIT_ADJUSTMENT_SKIP_SURVIVAL_GEAR & equip_adjustments))
-		if(flags & OUTFIT_EXTENDED_SURVIVAL)
+		if(outfit_flags & OUTFIT_EXTENDED_SURVIVAL)
 			H.species.equip_survival_gear(H, /obj/item/storage/box/engineer)
 		else if(H.client?.prefs?.survival_box_choice && global.survival_box_choices[H.client.prefs.survival_box_choice])
 			var/decl/survival_box_option/box = global.survival_box_choices[H.client.prefs.survival_box_choice]

code/datums/outfits/pirates.dm

@@ -15,4 +15,4 @@
 	head = /obj/item/clothing/suit/armor/pirate
 	suit = /obj/item/clothing/suit/pirate
 	back = /obj/item/tank/jetpack/oxygen
-	flags = OUTFIT_HAS_JETPACK|OUTFIT_RESET_EQUIPMENT
+	outfit_flags = OUTFIT_HAS_JETPACK|OUTFIT_RESET_EQUIPMENT

code/datums/outfits/spec_op.dm

@@ -22,7 +22,7 @@
 	back = /obj/item/tank/jetpack/oxygen
 	mask = /obj/item/clothing/mask/gas/swat
 
-	flags = OUTFIT_HAS_JETPACK|OUTFIT_RESET_EQUIPMENT
+	outfit_flags = OUTFIT_HAS_JETPACK|OUTFIT_RESET_EQUIPMENT
 
 /decl/hierarchy/outfit/ert
 	name = "Spec Ops - Emergency response team"
@@ -54,7 +54,7 @@
 
 	backpack_contents = list(/obj/item/clothing/suit/space/void/merc/prepared = 1, /obj/item/clothing/mask/gas/syndicate = 1)
 
-	flags = OUTFIT_HAS_BACKPACK|OUTFIT_RESET_EQUIPMENT
+	outfit_flags = OUTFIT_HAS_BACKPACK|OUTFIT_RESET_EQUIPMENT
 
 /decl/hierarchy/outfit/mercenary/syndicate
 	name = "Spec Ops - Syndicate"

code/datums/outfits/wizardry.dm

@@ -10,7 +10,7 @@
 	back = /obj/item/storage/backpack
 	backpack_contents = list(/obj/item/storage/box = 1)
 	abstract_type = /decl/hierarchy/outfit/wizard
-	flags = OUTFIT_HAS_BACKPACK|OUTFIT_RESET_EQUIPMENT
+	outfit_flags = OUTFIT_HAS_BACKPACK|OUTFIT_RESET_EQUIPMENT
 
 /decl/hierarchy/outfit/wizard/blue
 	name = "Wizard - Blue"

code/datums/repositories/crew/binary.dm

@@ -1,5 +1,5 @@
 /* Binary */
-/crew_sensor_modifier/binary/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/under/C, var/turf/pos, var/list/crew_data)
+/crew_sensor_modifier/binary/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/accessory/vitals_sensor/S, var/turf/pos, var/list/crew_data)
 	crew_data["alert"] = FALSE
 	if(!H.isSynthetic() && H.should_have_organ(BP_HEART))
 		var/obj/item/organ/internal/heart/O = H.get_organ(BP_HEART, /obj/item/organ/internal/heart)
@@ -19,11 +19,11 @@
 /crew_sensor_modifier/binary/jamming
 	priority = 5
 
-/crew_sensor_modifier/binary/jamming/alive/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/under/C, var/turf/pos, var/list/crew_data)
+/crew_sensor_modifier/binary/jamming/alive/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/accessory/vitals_sensor/S, var/turf/pos, var/list/crew_data)
 	crew_data["alert"] = FALSE
 	return MOD_SUIT_SENSORS_HANDLED
 
-/crew_sensor_modifier/binary/jamming/dead/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/under/C, var/turf/pos, var/list/crew_data)
+/crew_sensor_modifier/binary/jamming/dead/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/accessory/vitals_sensor/S, var/turf/pos, var/list/crew_data)
 	crew_data["alert"] = TRUE
 	return MOD_SUIT_SENSORS_HANDLED
 
@@ -37,7 +37,7 @@
 /crew_sensor_modifier/binary/jamming/random/major
 	error_prob = 100
 
-/crew_sensor_modifier/binary/jamming/random/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/under/C, var/turf/pos, var/list/crew_data)
+/crew_sensor_modifier/binary/jamming/random/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/accessory/vitals_sensor/S, var/turf/pos, var/list/crew_data)
 	. = ..()
 	if(prob(error_prob))
 		crew_data["alert"] = pick(TRUE, FALSE)

code/datums/repositories/crew/crew.dm

@@ -21,10 +21,10 @@ var/global/datum/repository/crew/crew_repository = new()
 	tracking_modifiers.Enqueue(new/crew_sensor_modifier/tracking())
 
 	modifier_queues = list()
-	modifier_queues[general_modifiers] = 0
-	modifier_queues[binary_modifiers] = SUIT_SENSOR_BINARY
-	modifier_queues[vital_modifiers] = SUIT_SENSOR_VITAL
-	modifier_queues[tracking_modifiers] = SUIT_SENSOR_TRACKING
+	modifier_queues[general_modifiers]  = VITALS_SENSOR_OFF
+	modifier_queues[binary_modifiers]   = VITALS_SENSOR_BINARY
+	modifier_queues[vital_modifiers]    = VITALS_SENSOR_VITAL
+	modifier_queues[tracking_modifiers] = VITALS_SENSOR_TRACKING
 
 	modifier_queues_by_type = list()
 	modifier_queues_by_type[/crew_sensor_modifier/general] = general_modifiers
@@ -49,19 +49,21 @@ var/global/datum/repository/crew/crew_repository = new()
 
 	cache_data_alert[num2text(z_level)] = FALSE
 	var/tracked = scan()
-	for(var/obj/item/clothing/under/C in tracked)
-		var/turf/pos = get_turf(C)
-		if(C.has_sensor && pos && pos.z == z_level && C.sensor_mode != SUIT_SENSOR_OFF)
-			if(ishuman(C.loc))
-				var/mob/living/carbon/human/H = C.loc
-				if(H.get_equipped_item(slot_w_uniform_str) != C)
-					continue
-
-				var/list/crewmemberData = list("sensor_type"=C.sensor_mode, "stat"=H.stat, "area"="", "x"=-1, "y"=-1, "z"=-1, "ref"="\ref[H]")
-				if(!(run_queues(H, C, pos, crewmemberData) & MOD_SUIT_SENSORS_REJECTED))
-					crewmembers[++crewmembers.len] = crewmemberData
-					if (crewmemberData["alert"])
-						cache_data_alert[num2text(z_level)] = TRUE
+	for(var/obj/item/clothing/accessory/vitals_sensor/sensor as anything in tracked)
+		var/turf/pos = get_turf(sensor)
+		if(!pos || pos.z != z_level || sensor.sensor_mode == VITALS_SENSOR_OFF)
+			continue
+		var/mob/living/carbon/human/H = sensor.loc?.loc
+		if(!istype(H))
+			continue
+		var/obj/item/clothing/uniform = H.get_equipped_item(slot_w_uniform_str)
+		if(!istype(uniform) || !(sensor in uniform.accessories))
+			continue
+		var/list/crewmemberData = list("sensor_type" = sensor.sensor_mode, "stat"=H.stat, "area"="", "x"=-1, "y"=-1, "z"=-1, "ref"="\ref[H]")
+		if(!(run_queues(H, sensor, pos, crewmemberData) & MOD_SUIT_SENSORS_REJECTED))
+			crewmembers[++crewmembers.len] = crewmemberData
+			if (crewmemberData["alert"])
+				cache_data_alert[num2text(z_level)] = TRUE
 
 	crewmembers = sortTim(crewmembers, /proc/cmp_list_name_key_asc)
 
@@ -80,39 +82,37 @@ var/global/datum/repository/crew/crew_repository = new()
 	. = cache_data_alert[num2text(z_level)]
 
 /datum/repository/crew/proc/scan()
-	var/list/tracked = list()
 	for(var/mob/living/carbon/human/H in SSmobs.mob_list)
-		var/obj/item/clothing/under/C = H.get_equipped_item(slot_w_uniform_str)
-		if(istype(C) && C.has_sensor)
-			tracked |= C
-	return tracked
+		var/sensor = H.get_vitals_sensor()
+		if(sensor)
+			LAZYDISTINCTADD(., sensor)
 
-/datum/repository/crew/proc/run_queues(H, C, pos, crewmemberData)
+/datum/repository/crew/proc/run_queues(H, S, pos, crewmemberData)
 	for(var/modifier_queue in modifier_queues)
 		if(crewmemberData["sensor_type"] >= modifier_queues[modifier_queue])
-			. = process_crew_data(modifier_queue, H, C, pos, crewmemberData)
+			. = process_crew_data(modifier_queue, H, S, pos, crewmemberData)
 			if(. & MOD_SUIT_SENSORS_REJECTED)
 				return
 
-/datum/repository/crew/proc/process_crew_data(var/datum/priority_queue/modifiers, var/mob/living/carbon/human/H, var/obj/item/clothing/under/C, var/turf/pos, var/list/crew_data)
+/datum/repository/crew/proc/process_crew_data(var/datum/priority_queue/modifiers, var/mob/living/carbon/human/H, var/obj/item/clothing/accessory/vitals_sensor/S, var/turf/pos, var/list/crew_data)
 	var/current_priority = INFINITY
 	var/list/modifiers_of_this_priority = list()
 
 	for(var/crew_sensor_modifier/csm in modifiers.L)
 		if(csm.priority < current_priority)
-			. = check_queue(modifiers_of_this_priority, H, C, pos, crew_data)
+			. = check_queue(modifiers_of_this_priority, H, S, pos, crew_data)
 			if(. != MOD_SUIT_SENSORS_NONE)
 				return
 		current_priority = csm.priority
 		modifiers_of_this_priority += csm
-	return check_queue(modifiers_of_this_priority, H, C, pos, crew_data)
+	return check_queue(modifiers_of_this_priority, H, S, pos, crew_data)
 
-/datum/repository/crew/proc/check_queue(var/list/modifiers_of_this_priority, H, C, pos, crew_data)
+/datum/repository/crew/proc/check_queue(var/list/modifiers_of_this_priority, H, S, pos, crew_data)
 	while(modifiers_of_this_priority.len)
 		var/crew_sensor_modifier/pcsm = pick(modifiers_of_this_priority)
 		modifiers_of_this_priority -= pcsm
-		if(pcsm.may_process_crew_data(H, C, pos))
-			. = pcsm.process_crew_data(H, C, pos, crew_data)
+		if(pcsm.may_process_crew_data(H, S, pos))
+			. = pcsm.process_crew_data(H, S, pos, crew_data)
 			if(. != MOD_SUIT_SENSORS_NONE)
 				return
 	return MOD_SUIT_SENSORS_NONE

code/datums/repositories/crew/crew_sensor_modifier.dm

@@ -13,8 +13,8 @@
 	may_process_proc = null
 	. = ..()
 
-/crew_sensor_modifier/proc/may_process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/under/C, var/turf/pos)
-	return holder && may_process_proc ? call(holder, may_process_proc)(H, C, pos) : TRUE
+/crew_sensor_modifier/proc/may_process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/accessory/vitals_sensor/S, var/turf/pos)
+	return holder && may_process_proc ? call(holder, may_process_proc)(H, S, pos) : TRUE
 
-/crew_sensor_modifier/proc/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/under/C, var/turf/pos, var/list/crew_data)
+/crew_sensor_modifier/proc/process_crew_data(var/mob/living/carbon/human/H, var/obj/item/clothing/accessory/vitals_sensor/S, var/turf/pos, var/list/crew_data)
 	return MOD_SUIT_SENSORS_HANDLED