Helmet Visors/Optics and built-in HUDs

code/__DEFINES/mob_hud.dm

@@ -65,3 +65,6 @@
 #define TRACKER_HIVE "Hive Core"
 #define TRACKER_LEADER "Leader"
 #define TRACKER_TUNNEL "Tunnel"
+
+//These are used to manage the same HUD having multiple sources
+#define HUD_SOURCE_ADMIN "admin"

code/datums/mob_hud.dm

@@ -30,10 +30,18 @@ var/list/datum/mob_hud/huds = list(
 
 // Stop displaying a HUD to a specific person
 // (took off medical glasses)
-/datum/mob_hud/proc/remove_hud_from(mob/user)
+/datum/mob_hud/proc/remove_hud_from(mob/user, source)
+	if(length(hudusers[user]) && (source in hudusers[user]))
+		hudusers[user] -= source
+
+	if(length(hudusers[user]))
+		return FALSE
+
 	for(var/mob/target in hudmobs)
 		remove_from_single_hud(user, target)
+
 	hudusers -= user
+	return TRUE
 
 // Stop rendering a HUD on a target
 // "unenroll" them so to speak
@@ -53,8 +61,24 @@ var/list/datum/mob_hud/huds = list(
 			user.client.images -= target.clone.hud_list[i]
 
 // Allow user to view a HUD (putting on medical glasses)
-/datum/mob_hud/proc/add_hud_to(mob/user)
+/datum/mob_hud/proc/add_hud_to(mob/user, source)
 	hudusers |= user
+	if(hudusers[user])
+		hudusers[user] |= list(source)
+	else
+		hudusers[user] += list(source)
+
+	for(var/mob/target in hudmobs)
+		add_to_single_hud(user, target)
+
+/// Refreshes the HUD, adding user and sources if missing and then calls to add the HUD
+/datum/mob_hud/proc/refresh_hud(mob/user, list/source)
+	hudusers |= user
+	if(hudusers[user])
+		hudusers[user] |= source
+	else
+		hudusers[user] += source
+
 	for(var/mob/target in hudmobs)
 		add_to_single_hud(user, target)
 
@@ -229,27 +253,21 @@ var/list/datum/mob_hud/huds = list(
 	for(var/datum/mob_hud/hud in huds)
 		if(istype(hud, /datum/mob_hud/xeno))
 			hud.remove_from_hud(src)
-			hud.remove_hud_from(src)
+			hud.remove_hud_from(src, src)
 		else if (istype(hud, /datum/mob_hud/xeno_infection))
-			hud.remove_hud_from(src)
+			hud.remove_hud_from(src, src)
 	if (xeno_hostile_hud)
 		xeno_hostile_hud = FALSE
 		var/datum/mob_hud/hostile_hud = huds[MOB_HUD_XENO_HOSTILE]
-		hostile_hud.remove_hud_from(src)
+		hostile_hud.remove_hud_from(src, src)
 
 
 
 /mob/proc/refresh_huds(mob/source_mob)
 	var/mob/M = source_mob ? source_mob : src
 	for(var/datum/mob_hud/hud in huds)
 		if(M in hud.hudusers)
-			readd_hud(hud)
-
-/mob/proc/readd_hud(datum/mob_hud/hud)
-	hud.add_hud_to(src)
-
-
-
+			hud.refresh_hud(src, hud.hudusers[M])
 
 //Medical HUDs
 

code/game/machinery/vending/vendor_types/crew/vehicle_crew.dm

@@ -306,7 +306,7 @@ GLOBAL_LIST_INIT(cm_vending_clothing_vehicle_crew, list(
 		list("Gloves", 0, /obj/item/clothing/gloves/yellow, MARINE_CAN_BUY_GLOVES, VENDOR_ITEM_MANDATORY),
 		list("Tanker Armor", 0, /obj/item/clothing/suit/storage/marine/tanker, MARINE_CAN_BUY_ARMOR, VENDOR_ITEM_MANDATORY),
 		list("M50 Tanker Helmet", 0, /obj/item/clothing/head/helmet/marine/tech/tanker, MARINE_CAN_BUY_HELMET, VENDOR_ITEM_MANDATORY),
-		list("SensorMate HUD", 0, /obj/item/clothing/glasses/hud/sensor, MARINE_CAN_BUY_GLASSES, VENDOR_ITEM_MANDATORY),
+		list("Medical Helmet Optic", 0, /obj/item/device/helmet_visor/medical, MARINE_CAN_BUY_GLASSES, VENDOR_ITEM_MANDATORY),
 		list("Welding Kit", 0, /obj/item/tool/weldpack, MARINE_CAN_BUY_BACKPACK, VENDOR_ITEM_MANDATORY),
 		list("MRE", 0, /obj/item/storage/box/MRE, MARINE_CAN_BUY_MRE, VENDOR_ITEM_MANDATORY),
 

code/game/machinery/vending/vendor_types/intelligence_officer.dm

@@ -15,7 +15,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_intelligence_officer, list(
 		list("Motion Detector", 15, /obj/item/device/motiondetector, null, VENDOR_ITEM_RECOMMENDED),
 		list("Plastic Explosive", 10, /obj/item/explosive/plastic, null, VENDOR_ITEM_REGULAR),
 		list("Welding Goggles", 5, /obj/item/clothing/glasses/welding, null, VENDOR_ITEM_REGULAR),
-		list("Sensor Medical HUD", 5, /obj/item/clothing/glasses/hud/sensor, null, VENDOR_ITEM_REGULAR),
+		list("Medical Helmet Optic", 5, /obj/item/device/helmet_visor/medical, null, VENDOR_ITEM_REGULAR),
 
 		list("POUCHES", 0, null, null, null),
 		list("Large Magazine Pouch", 10, /obj/item/storage/pouch/magazine/large, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_engineer.dm

@@ -54,7 +54,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_engi, list(
 		list("M56D Heavy Machine Gun", 24, /obj/item/storage/box/guncase/m56d, null, VENDOR_ITEM_REGULAR),
 
 		list("UTILITIES", 0, null, null, null),
-		list("SensorMate Medical HUD", 12, /obj/item/clothing/glasses/hud/sensor, null, VENDOR_ITEM_REGULAR),
+		list("Medical Helmet Optic", 12, /obj/item/device/helmet_visor/medical, null, VENDOR_ITEM_REGULAR),
 		list("Roller Bed", 5, /obj/item/roller, null, VENDOR_ITEM_REGULAR),
 		list("Fulton Device Stack", 5, /obj/item/stack/fulton, null, VENDOR_ITEM_REGULAR),
 		list("M3 B12 Pattern Armor", 24, /obj/item/clothing/suit/storage/marine/leader, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_leader.dm

@@ -67,7 +67,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_leader, list(
 		list("Injector (Tricord)", 1, /obj/item/reagent_container/hypospray/autoinjector/tricord, null, VENDOR_ITEM_REGULAR),
 
 		list("Health Analyzer", 4, /obj/item/device/healthanalyzer, null, VENDOR_ITEM_REGULAR),
-		list("SensorMate Medical HUD", 4, /obj/item/clothing/glasses/hud/sensor, null, VENDOR_ITEM_RECOMMENDED),
+		list("Medical Helmet Optic", 4, /obj/item/device/helmet_visor/medical, null, VENDOR_ITEM_RECOMMENDED),
 		list("Roller Bed", 2, /obj/item/roller, null, VENDOR_ITEM_REGULAR),
 
 		list("SPECIAL AMMUNITION", 0, null, null, null),

code/game/machinery/vending/vendor_types/squad_prep/squad_medic.dm

@@ -42,7 +42,6 @@ GLOBAL_LIST_INIT(cm_vending_gear_medic, list(
 
 		list("MEDICAL UTILITIES", 0, null, null, null),
 		list("Health Analyzer", 4, /obj/item/device/healthanalyzer, null, VENDOR_ITEM_REGULAR),
-		list("Medical HUD Glasses", 4, /obj/item/clothing/glasses/hud/health, null, VENDOR_ITEM_REGULAR),
 		list("Roller Bed", 4, /obj/item/roller, null, VENDOR_ITEM_REGULAR),
 		list("Stasis Bag", 6, /obj/item/bodybag/cryobag, null, VENDOR_ITEM_REGULAR),
 		list("Pressurized Reagent Canister Pouch (EMPTY)", 3, /obj/item/storage/pouch/pressurized_reagent_canister, null, VENDOR_ITEM_REGULAR),
@@ -110,7 +109,6 @@ GLOBAL_LIST_INIT(cm_vending_clothing_medic, list(
 		list("Boots", 0, /obj/item/clothing/shoes/marine/knife, MARINE_CAN_BUY_SHOES, VENDOR_ITEM_MANDATORY),
 		list("Uniform", 0, /obj/item/clothing/under/marine/medic, MARINE_CAN_BUY_UNIFORM, VENDOR_ITEM_MANDATORY),
 		list("Gloves", 0, /obj/item/clothing/gloves/marine, MARINE_CAN_BUY_GLOVES, VENDOR_ITEM_MANDATORY),
-		list("Medical HUD Glasses", 0, /obj/item/clothing/glasses/hud/health, MARINE_CAN_BUY_GLASSES, VENDOR_ITEM_MANDATORY),
 		list("Headset", 0, /obj/item/device/radio/headset/almayer/marine, MARINE_CAN_BUY_EAR, VENDOR_ITEM_MANDATORY),
 		list("Helmet", 0, /obj/item/clothing/head/helmet/marine/medic, MARINE_CAN_BUY_HELMET, VENDOR_ITEM_MANDATORY),
 		list("MRE", 0, /obj/item/storage/box/MRE, MARINE_CAN_BUY_MRE, VENDOR_ITEM_MANDATORY),

code/game/machinery/vending/vendor_types/squad_prep/squad_rifleman.dm

@@ -76,7 +76,7 @@ GLOBAL_LIST_INIT(cm_vending_clothing_marine, list(
 		list("Brown Webbing Vest", 15, /obj/item/clothing/accessory/storage/black_vest/brown_vest, null, VENDOR_ITEM_REGULAR),
 		list("Black Webbing Vest", 15, /obj/item/clothing/accessory/storage/black_vest, null, VENDOR_ITEM_REGULAR),
 		list("Drop Pouch", 15, /obj/item/clothing/accessory/storage/droppouch, null, VENDOR_ITEM_REGULAR),
-		list("SensorMate Medical HUD", 15, /obj/item/clothing/glasses/hud/sensor, null, VENDOR_ITEM_REGULAR),
+		list("Medical Helmet Optic", 15, /obj/item/device/helmet_visor/medical, null, VENDOR_ITEM_REGULAR),
 		list("Roller Bed", 5, /obj/item/roller, null, VENDOR_ITEM_REGULAR),
 		list("Fulton Device Stack", 5, /obj/item/stack/fulton, null, VENDOR_ITEM_REGULAR),
 		list("B12 Pattern Marine Armor", 30, /obj/item/clothing/suit/storage/marine/leader, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_smartgunner.dm

@@ -34,6 +34,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_smartgun, list(
 		list("Powerloader Certification", 45, /obj/item/pamphlet/skill/powerloader, null, VENDOR_ITEM_REGULAR),
 		list("Roller Bed", 5, /obj/item/roller, null, VENDOR_ITEM_REGULAR),
 		list("Fulton Device Stack", 5, /obj/item/stack/fulton, null, VENDOR_ITEM_REGULAR),
+		list("Medical Helmet Optic", 15, /obj/item/device/helmet_visor/medical, null, VENDOR_ITEM_REGULAR),
 
 		list("RADIO KEYS", 0, null, null, null),
 		list("Engineering Radio Encryption Key", 5, /obj/item/device/encryptionkey/engi, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_specialist.dm

@@ -38,7 +38,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_spec, list(
 
 		list("UTILITIES", 0, null, null, null),
 		list("Fire Extinguisher (Portable)", 5, /obj/item/tool/extinguisher/mini, null, VENDOR_ITEM_REGULAR),
-		list("SensorMate Medical HUD", 15, /obj/item/clothing/glasses/hud/sensor, null, VENDOR_ITEM_REGULAR),
+		list("Medical Helmet Optic", 15, /obj/item/device/helmet_visor/medical, null, VENDOR_ITEM_REGULAR),
 		list("Roller Bed", 5, /obj/item/roller, null, VENDOR_ITEM_REGULAR),
 		list("Fulton Device Stack", 5, /obj/item/stack/fulton, null, VENDOR_ITEM_REGULAR),
 		list("Fuel Tank Strap Pouch", 5, /obj/item/storage/pouch/flamertank, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_tl.dm

@@ -35,7 +35,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_tl, list(
 		list("Motion Detector", 15, /obj/item/device/motiondetector, null, VENDOR_ITEM_RECOMMENDED),
 		list("Plastic Explosive", 10, /obj/item/explosive/plastic, null, VENDOR_ITEM_REGULAR),
 		list("Breaching Charge", 10, /obj/item/explosive/plastic/breaching_charge, null, VENDOR_ITEM_REGULAR),
-		list("SensorMate Medical HUD", 15, /obj/item/clothing/glasses/hud/sensor, null, VENDOR_ITEM_REGULAR),
+		list("Medical Helmet Optic", 15, /obj/item/device/helmet_visor/medical, null, VENDOR_ITEM_REGULAR),
 		list("M2 Night Vision Goggles", 30, /obj/item/prop/helmetgarb/helmet_nvg, null, VENDOR_ITEM_RECOMMENDED),
 		list("Roller Bed", 5, /obj/item/roller, null, VENDOR_ITEM_REGULAR),
 		list("Fulton Device Stack", 5, /obj/item/stack/fulton, null, VENDOR_ITEM_REGULAR),

code/game/objects/items/devices/helmet_visors.dm

@@ -0,0 +1,98 @@
+/obj/item/device/helmet_visor
+	name = "squad optic"
+	desc = "An insertable visor HUD into a standard USCM helmet."
+	icon = 'icons/obj/items/clothing/helmet_visors.dmi'
+	icon_state = "hud_sight"
+	w_class = SIZE_TINY
+
+	///The type of HUD our visor shows
+	var/hud_type = MOB_HUD_FACTION_USCM
+
+	///The sound when toggling on the visor
+	var/toggle_on_sound = 'sound/handling/hud_on.ogg'
+
+	///The sound when toggling off the visor
+	var/toggle_off_sound = 'sound/handling/hud_off.ogg'
+
+	///The icon name for our helmet's action
+	var/action_icon_string = "hud_sight_down"
+
+	///The overlay name for when our visor is active
+	var/helmet_overlay = "hud_sight_right"
+
+/// Called to see if the user can even use this visor
+/obj/item/device/helmet_visor/proc/can_toggle(mob/living/carbon/human/user)
+	return TRUE
+
+/// Called to see if this visor is a special non-HUD visor
+/obj/item/device/helmet_visor/proc/visor_function(obj/item/clothing/head/helmet/marine/attached_helmet, mob/living/carbon/human/user, silent = FALSE)
+	if(attached_helmet == user.head && attached_helmet.active_visor == src)
+		var/datum/mob_hud/current_mob_hud = huds[hud_type]
+		current_mob_hud.add_hud_to(user, attached_helmet)
+		if(!silent)
+			to_chat(user, SPAN_NOTICE("You activate [src] on [attached_helmet]."))
+		return TRUE
+
+	var/datum/mob_hud/current_mob_hud = huds[hud_type]
+	current_mob_hud.remove_hud_from(user, attached_helmet)
+	if(!silent)
+		to_chat(user, SPAN_NOTICE("You deactivate [src] on [attached_helmet]."))
+	return TRUE
+
+/obj/item/device/helmet_visor/medical
+	name = "basic medical optic"
+	icon_state = "med_sight"
+	hud_type = MOB_HUD_MEDICAL_ADVANCED
+	action_icon_string = "med_sight_down"
+	helmet_overlay = "med_sight_right"
+
+/obj/item/device/helmet_visor/medical/advanced
+	name = "advanced medical optic"
+	helmet_overlay = "med_sight_left"
+
+/obj/item/device/helmet_visor/medical/advanced/can_toggle(mob/living/carbon/human/user)
+	if(!skillcheck(user, SKILL_MEDICAL, SKILL_MEDICAL_MEDIC))
+		to_chat(user, SPAN_NOTICE("You are not skilled enough to use [src]."))
+		return FALSE
+
+	return TRUE
+
+/obj/item/device/helmet_visor/security
+	name = "security optic"
+	icon_state = "sec_sight"
+	hud_type = MOB_HUD_SECURITY_ADVANCED
+	action_icon_string = "sec_sight_down"
+	helmet_overlay = "sec_sight_right"
+
+/obj/item/device/helmet_visor/welding_visor
+	name = "welding visor"
+	icon_state = "sight_empty"
+	hud_type = null
+	action_icon_string = "blank_hud_sight_down"
+	helmet_overlay = "weld_visor"
+
+/obj/item/device/helmet_visor/welding_visor/visor_function(obj/item/clothing/head/helmet/marine/attached_helmet, mob/living/carbon/human/user, silent = FALSE)
+	if(attached_helmet == user.head && attached_helmet.active_visor == src)
+		attached_helmet.vision_impair = VISION_IMPAIR_MAX
+		attached_helmet.flags_inventory |= COVEREYES|COVERMOUTH
+		attached_helmet.flags_inv_hide |= HIDEEYES|HIDEFACE
+		attached_helmet.eye_protection = EYE_PROTECTION_WELDING
+		user.update_tint()
+		if(!silent)
+			to_chat(user, SPAN_NOTICE("You activate [src] on [attached_helmet]."))
+		return TRUE
+
+	attached_helmet.vision_impair = VISION_IMPAIR_NONE
+	attached_helmet.flags_inventory &= ~(COVEREYES|COVERMOUTH)
+	attached_helmet.flags_inv_hide &= ~(HIDEEYES|HIDEFACE)
+	attached_helmet.eye_protection = EYE_PROTECTION_NONE
+	if(!silent)
+		to_chat(user, SPAN_NOTICE("You deactivate [src] on [attached_helmet]."))
+	user.update_tint()
+	return TRUE
+
+/obj/item/device/helmet_visor/welding_visor/mercenary
+	helmet_overlay = ""
+
+/obj/item/device/helmet_visor/welding_visor/tanker
+	helmet_overlay = "tanker_weld_visor"

code/game/objects/items/devices/radio/headset.dm

@@ -238,7 +238,7 @@
 		RegisterSignal(user, COMSIG_HUMAN_SET_UNDEFIBBABLE, PROC_REF(update_minimap_icon))
 		if(headset_hud_on)
 			var/datum/mob_hud/H = huds[hud_type]
-			H.add_hud_to(user)
+			H.add_hud_to(user, src)
 			//squad leader locator is no longer invisible on our player HUD.
 			if(user.mind && (user.assigned_squad || misc_tracking) && user.hud_used && user.hud_used.locate_leader)
 				user.show_hud_tracker()
@@ -257,7 +257,7 @@
 	))
 	if(istype(user) && user.has_item_in_ears(src)) //dropped() is called before the inventory reference is update.
 		var/datum/mob_hud/H = huds[hud_type]
-		H.remove_hud_from(user)
+		H.remove_hud_from(user, src)
 		//squad leader locator is invisible again
 		if(user.hud_used && user.hud_used.locate_leader)
 			user.hide_hud_tracker()
@@ -290,14 +290,14 @@
 		if(user.has_item_in_ears(src)) //worn
 			var/datum/mob_hud/H = huds[hud_type]
 			if(headset_hud_on)
-				H.add_hud_to(usr)
+				H.add_hud_to(usr, src)
 				if(user.mind && (misc_tracking || user.assigned_squad) && user.hud_used?.locate_leader)
 					user.show_hud_tracker()
 				if(misc_tracking)
 					SStracking.start_misc_tracking(user)
 				update_minimap_icon()
 			else
-				H.remove_hud_from(usr)
+				H.remove_hud_from(usr, src)
 				if(user.hud_used?.locate_leader)
 					user.hide_hud_tracker()
 				if(misc_tracking)

code/modules/admin/verbs/mob_verbs.dm

@@ -81,7 +81,7 @@
 			H = huds[MOB_HUD_XENO_STATUS]
 		else return
 
-	H.add_hud_to(M)
+	H.add_hud_to(M, HUD_SOURCE_ADMIN)
 	to_chat(src, SPAN_INFO("[hud_choice] enabled."))
 	message_admins(SPAN_INFO("[key_name(usr)] has given a [hud_choice] to [M]."))
 

code/modules/client/preferences_toggles.dm

@@ -623,7 +623,7 @@
 
 	if(!isobserver(usr))
 		return
-	var/mob/dead/observer/O = usr
+	var/mob/dead/observer/observer_user = usr
 	var/datum/mob_hud/H
 	switch(hud_choice)
 		if("Medical HUD")
@@ -643,11 +643,11 @@
 		if("Faction CLF HUD")
 			H = huds[MOB_HUD_FACTION_CLF]
 
-	O.HUD_toggled[hud_choice] = prefs.observer_huds[hud_choice]
-	if(O.HUD_toggled[hud_choice])
-		H.add_hud_to(O)
+	observer_user.HUD_toggled[hud_choice] = prefs.observer_huds[hud_choice]
+	if(observer_user.HUD_toggled[hud_choice])
+		H.add_hud_to(observer_user, observer_user)
 	else
-		H.remove_hud_from(O)
+		H.remove_hud_from(observer_user, observer_user)
 
 /client/proc/toggle_ghost_health_scan()
 	set name = "Toggle Health Scan"

code/modules/clothing/glasses/glasses.dm

@@ -70,10 +70,10 @@
 			if(hud_type)
 				var/datum/mob_hud/MH = huds[hud_type]
 				if(active)
-					MH.add_hud_to(H)
+					MH.add_hud_to(H, src)
 					playsound(H, 'sound/handling/hud_on.ogg', 25, 1)
 				else
-					MH.remove_hud_from(H)
+					MH.remove_hud_from(H, src)
 					playsound(H, 'sound/handling/hud_off.ogg', 25, 1)
 			if(active) //turning it on? then add the traits
 				for(var/trait in clothing_traits)
@@ -95,15 +95,15 @@
 
 		else if(hud_type)
 			var/datum/mob_hud/MH = huds[hud_type]
-			MH.add_hud_to(user)
+			MH.add_hud_to(user, src)
 	user.update_sight()
 	..()
 
 /obj/item/clothing/glasses/dropped(mob/living/carbon/human/user)
 	if(hud_type && active && istype(user))
 		if(src == user.glasses) //dropped is called before the inventory reference is updated.
 			var/datum/mob_hud/H = huds[hud_type]
-			H.remove_hud_from(user)
+			H.remove_hud_from(user, src)
 			user.glasses = null
 			user.update_inv_glasses()
 	user.update_sight()

code/modules/clothing/glasses/hud.dm

@@ -109,7 +109,7 @@
 	deactive_state = "sensorhud_d"
 	flags_armor_protection = 0
 	toggleable = TRUE
-	hud_type = MOB_HUD_MEDICAL_BASIC
+	hud_type = MOB_HUD_MEDICAL_ADVANCED
 	actions_types = list(/datum/action/item_action/toggle)
 	req_skill = SKILL_MEDICAL
 	req_skill_level = SKILL_MEDICAL_DEFAULT