Adds in hoods + OWLF placeholder items (#2877)

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# About the pull request
This adds in a new system for 'hoods' or integrated helmets akin to
normal SS13's voidsuits. None of this has stats apart from the uniform,
and this is meant to be a foundation for properly implementing OWLF in
the future, as a possible replacement pred hunting ERT for DD.
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# Explain why it's good for the game
It's cool, the code works, and this is soulful.
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# Changelog

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:cl:
add: Added OWLF placeholder items, none of which are properly statted
yet.
code: CM's code now has support for integrated hoods for uniforms.
/:cl:

<!-- Both :cl:'s are required for the changelog to work! -->

---------

Co-authored-by: harryob <me@harryob.live>

code/__DEFINES/cooldowns.dm

@@ -1,6 +1,7 @@
 #define COOLDOWN_MOB_AUDIO "mob_audio_cooldown"
 #define COOLDOWN_IDLOCK_TEXTALERT "mob_idlock_textalert"
 #define COOLDOWN_HIJACK_BARRAGE "gamemode_explosive_barrage"
+#define COOLDOWN_ITEM_HOOD_SOUND "item_hood_sound"
 
 //Define for ship alt
 #define COOLDOWN_ALTITUDE_CHANGE "altitude_change"

code/__DEFINES/traits.dm

@@ -188,6 +188,8 @@
 #define TRAIT_TOOL_SIMPLE_BLOWTORCH "t_tool_simple_blowtorch"
 
 #define TRAIT_TOOL_PEN "t_tool_pen"
+// CLOTHING TRAITS
+#define TRAIT_CLOTHING_HOOD "t_clothing_hood"
 
 // GUN TRAITS
 #define TRAIT_GUN_SILENCED "t_gun_silenced"
@@ -275,6 +277,9 @@ GLOBAL_LIST_INIT(traits_by_type, list(
 		"TRAIT_OVERRIDE_CLICKDRAG" = TRAIT_OVERRIDE_CLICKDRAG,
 		"TRAIT_ITEM_RENAME_SPECIAL" = TRAIT_ITEM_RENAME_SPECIAL,
 	),
+	/obj/item/clothing = list(
+		"TRAIT_CLOTHING_HOOD" = TRAIT_CLOTHING_HOOD
+	),
 	/obj/item/weapon/gun = list(
 		"TRAIT_GUN_SILENCED" = TRAIT_GUN_SILENCED,
 	),
@@ -332,3 +337,6 @@ GLOBAL_LIST(trait_name_map)
 #define TRAIT_SOURCE_WEAPON "t_s_weapon"
 ///Status trait coming from generic items
 #define TRAIT_SOURCE_ITEM "t_s_item"
+
+//Status trait coming from clothing.
+#define TRAIT_SOURCE_CLOTHING "t_s_clothing"

code/modules/clothing/head/head.dm

@@ -754,3 +754,13 @@ D
 	desc = "The combination cover of the legendary Marine dress blues, virtually unchanged since the 19th century. Features a gold stripe and silvered logo, emblematic of an officer."
 	icon_state = "o_cap"
 	item_state = "o_cap"
+
+/obj/item/clothing/head/owlf_hood
+	name = "\improper OWLF thermal hood"
+	desc = "This hood is attached to a high-tech suit with built-in thermal cloaking technology."
+	icon = 'icons/obj/items/clothing/cm_hats.dmi'
+	icon_state = "owlf_hood"
+	item_icons = list(
+		WEAR_HEAD = 'icons/mob/humans/onmob/head_1.dmi'
+	)
+	item_state = "owlf_hood"

code/modules/clothing/masks/breath.dm

@@ -225,3 +225,14 @@
 /obj/item/clothing/mask/tornscarf/black
 	icon_state = "torn_scarf_black"
 	item_state = "torn_scarf_black"
+
+/obj/item/clothing/mask/owlf_mask
+	name = "\improper OWLF gas mask"
+	desc = "A close-fitting mask that can be connected to an air supply."
+	icon_state = "owlf_mask"
+	item_state = "owlf_mask"
+	flags_inventory = COVERMOUTH|ALLOWINTERNALS
+	flags_armor_protection = 0
+	w_class = SIZE_SMALL
+	gas_transfer_coefficient = 0.10
+	permeability_coefficient = 0.50

code/modules/clothing/under/marine_uniform.dm

@@ -619,6 +619,19 @@
 	flags_cold_protection = ICE_PLANET_MIN_COLD_PROT
 	has_sensor = UNIFORM_NO_SENSORS
 
+//=========================//OWLF\\================================\\
+
+/obj/item/clothing/under/marine/veteran/owlf
+	name = "\improper OWLF thermal field uniform"
+	desc = "A high-tech uniform with built-in thermal cloaking technology. It looks like it's worth more than your life."
+	flags_armor_protection = BODY_FLAG_CHEST|BODY_FLAG_GROIN|BODY_FLAG_LEGS //This is all a copy and paste of the Dutch's stuff for now.
+	flags_cold_protection = BODY_FLAG_CHEST|BODY_FLAG_GROIN|BODY_FLAG_LEGS
+	flags_heat_protection = BODY_FLAG_CHEST|BODY_FLAG_GROIN|BODY_FLAG_LEGS
+	icon_state = "owlf_uniform"
+	worn_state = "owlf_uniform"
+	has_sensor = UNIFORM_NO_SENSORS
+	hood_state = /obj/item/clothing/head/owlf_hood
+
 //===========================//HELGHAST - MERCENARY\\================================\\
 //=====================================================================\\
 

code/modules/clothing/under/ties.dm

@@ -628,6 +628,7 @@
 
 	hold = /obj/item/storage/internal/accessory/drop_pouch
 
+
 /obj/item/storage/internal/accessory/drop_pouch
 	w_class = SIZE_LARGE //Allow storage containers that's medium or below
 	storage_slots = null
@@ -789,3 +790,10 @@
 	new /obj/item/clothing/accessory/holobadge/cord(src)
 	..()
 	return
+
+/obj/item/clothing/accessory/storage/owlf_vest
+	name = "\improper OWLF agent vest"
+	desc = "This is a fancy-looking ballistics vest, meant to be attached to a uniform." //No stats for these yet, just placeholder implementation.
+	icon = 'icons/obj/items/clothing/ties.dmi'
+	icon_state = "owlf_vest"
+	item_state = "owlf_vest"

code/modules/clothing/under/under.dm

@@ -30,6 +30,7 @@
 	var/list/suit_restricted //for uniforms that only accept to be combined with certain suits
 	var/removed_parts = 0
 	var/worn_state = null
+	var/hood_state //for uniforms with hoods.
 	drag_unequip = TRUE
 	valid_accessory_slots = list(ACCESSORY_SLOT_UTILITY, ACCESSORY_SLOT_ARMBAND, ACCESSORY_SLOT_RANK, ACCESSORY_SLOT_DECOR, ACCESSORY_SLOT_MEDAL, ACCESSORY_SLOT_ARMOR_C)
 	restricted_accessory_slots = list(ACCESSORY_SLOT_UTILITY, ACCESSORY_SLOT_ARMBAND, ACCESSORY_SLOT_RANK, ACCESSORY_SLOT_ARMOR_C)
@@ -308,6 +309,50 @@
 
 	roll_suit_jacket(TRUE, usr)
 
+/obj/item/clothing/under/verb/togglehood()
+	set name = "Toggle Hood"
+	set category = "Object"
+	set src in usr
+	if(!isliving(usr))
+		return
+	if(usr.stat)
+		return
+	toggle_uniform_hood(TRUE, usr)
+
+/obj/item/clothing/under/proc/toggle_uniform_hood(show_message = TRUE, mob/living/carbon/human/user)
+	if(!hood_state)
+		if(show_message)
+			to_chat(user, SPAN_WARNING("Your uniform doesn't have a hood!"))
+		return
+	update_rollsuit_status() //we need the _d version of the sprite anyways. In the future we might need to make a different version of the sprite to accomodate for rolling sleeves and hoods.
+	if(user.head && !istype(user.head, hood_state))
+		to_chat(user, SPAN_WARNING("You can't wear a hood while also wearing the [user.head]!"))
+		return
+
+	if(!HAS_TRAIT(src, TRAIT_CLOTHING_HOOD))
+		to_chat(user, SPAN_NOTICE("You pull your hood up."))
+		user.equip_to_slot_if_possible(new hood_state(user), WEAR_HEAD) //This is a 'phantom' hood. It disappears if the jumpsuit is unequipped/if it's toggled.
+		LAZYSET(item_state_slots, WEAR_BODY, "[worn_state]_d")
+		RegisterSignal(src, COMSIG_ITEM_UNEQUIPPED, PROC_REF(toggle_uniform_hood)) //These will unequip the phantom hood and toggle the state of the suit
+		RegisterSignal(user.head, COMSIG_ITEM_UNEQUIPPED, PROC_REF(toggle_uniform_hood)) // If either is unequipped.
+		update_clothing_icon()
+		if(!TIMER_COOLDOWN_CHECK(user, COOLDOWN_ITEM_HOOD_SOUND))
+			playsound(user.loc, pick('sound/handling/armorequip_1.ogg', 'sound/handling/armorequip_2.ogg'), 25, 1)
+			TIMER_COOLDOWN_START(user, COOLDOWN_ITEM_HOOD_SOUND, 1 SECONDS)
+		ADD_TRAIT(src, TRAIT_CLOTHING_HOOD, TRAIT_SOURCE_CLOTHING)
+		return
+
+	to_chat(user, SPAN_NOTICE("You pull your hood down."))
+	UnregisterSignal(src, COMSIG_ITEM_UNEQUIPPED) //See above, these deregister the signals so that it doesn't fire twice.
+	UnregisterSignal(user.head, COMSIG_ITEM_UNEQUIPPED)
+	qdel(user.head) //This will only delete the hood, see the typecheck above.
+	LAZYSET(item_state_slots, WEAR_BODY, worn_state)
+	update_clothing_icon()
+	if(!TIMER_COOLDOWN_CHECK(user, COOLDOWN_ITEM_HOOD_SOUND))
+		playsound(user.loc, pick('sound/handling/armorequip_1.ogg', 'sound/handling/armorequip_2.ogg'), 25, 1)
+		TIMER_COOLDOWN_START(user, COOLDOWN_ITEM_HOOD_SOUND, 1 SECONDS)
+	REMOVE_TRAIT(src, TRAIT_CLOTHING_HOOD, TRAIT_SOURCE_CLOTHING)
+
 /obj/item/clothing/under/attackby(obj/item/B, mob/user)
 	if(istype(B, /obj/item/attachable/bayonet) && (user.a_intent == INTENT_HARM))
 		cut_suit_jacket(TRUE, user, B)