Adds ability for nians to open and flap their wings (#31132)

* Adds ability for nians to open and flap their wings

* To chat fixes

* Add missing open moth wings. Adjust hind wing positions east/west/south.

---------

Co-authored-by: Alfalfa Scout <alfalfascout@proton.me>

code/modules/mob/living/carbon/human/body_accessories.dm

@@ -164,7 +164,7 @@ GLOBAL_LIST_EMPTY(body_accessory_by_species)
 	icon_state = "skrell_fringetail_xlong"
 	allowed_species = list("Skrell")
 
-//Moth wings
+// Moth wings
 /datum/body_accessory/wing
 	icon = 'icons/mob/sprite_accessories/moth/moth_wings.dmi'
 	animated_icon = null
@@ -172,6 +172,8 @@ GLOBAL_LIST_EMPTY(body_accessory_by_species)
 	icon_state = "plain"
 	allowed_species = list("Nian")
 	has_behind = TRUE
+	var/is_open = FALSE
+	var/open_icon = 'icons/mob/sprite_accessories/moth/moth_wingsopen.dmi'
 
 /datum/body_accessory/wing/plain
 

code/modules/mob/living/carbon/human/human_emote.dm

@@ -653,12 +653,60 @@
 	message = "flaps their wings."
 	sound = 'sound/effects/mob_effects/flap.ogg'
 	species_type_whitelist_typecache = list(/datum/species/moth)
+	var/wing_time = 1 SECONDS
+
+/datum/emote/living/carbon/human/flap/run_emote(mob/user, params, type_override, intentional)
+	. = ..()
+	if(. && ishuman(user))
+		var/mob/living/carbon/human/H = user
+		H.Togglewings()
+		addtimer(CALLBACK(src, PROC_REF(finish_flap), H), wing_time)
+
+/datum/emote/living/carbon/human/flap/proc/finish_flap(mob/living/carbon/human/H)
+	H.Togglewings()
 
 /datum/emote/living/carbon/human/flap/angry
 	key = "aflap"
 	key_third_person = "aflaps"
 	sound = 'sound/effects/mob_effects/angryflap.ogg'
 	message = "flaps their wings ANGRILY!"
+	wing_time = 0.5 SECONDS
+
+/datum/emote/living/carbon/human/wings
+	key = "wings"
+	key_third_person = "wings"
+	message = "their wings."
+
+/datum/emote/living/carbon/human/wings/can_run_emote(mob/user, status_check = TRUE, intentional)
+	. = ..()
+	if(!..())
+		return FALSE
+	if(!ishuman(user))
+		return FALSE
+	var/mob/living/carbon/human/H = user
+	if(H.has_status_effect(STATUS_EFFECT_BURNT_WINGS))
+		to_chat(H, "<span class='warning'>Your wings are burnt off!</span>")
+		return FALSE
+	if(!H.body_accessory || !istype(H.body_accessory, /datum/body_accessory/wing))
+		to_chat(H, "<span class='warning'>You don't have wings!</span>")
+		return FALSE
+	return TRUE
+
+/datum/emote/living/carbon/human/wings/run_emote(mob/user, params, type_override, intentional)
+	. = ..()
+	if(.)
+		var/mob/living/carbon/human/H = user
+		H.Togglewings()
+
+/datum/emote/living/carbon/human/wings/select_message_type(mob/user, intentional)
+	. = ..()
+	var/mob/living/carbon/human/H = user
+	if(H.body_accessory && istype(H.body_accessory, /datum/body_accessory/wing))
+		var/datum/body_accessory/wing/wings = H.body_accessory
+		if(!wings.is_open)
+			. = "opens " + message
+		else
+			. = "closes " + message
 
 /datum/emote/living/carbon/human/flutter
 	key = "flutter"

code/modules/mob/living/carbon/human/human_mob.dm

@@ -2303,3 +2303,22 @@ Eyes need to have significantly high darksight to shine unless the mob has the X
 
 /mob/living/carbon/human/get_strippable_items(datum/source, list/items)
 	items |= GLOB.strippable_human_items
+
+/// Used to toggle whether wings are open or not
+/mob/living/carbon/human/proc/Togglewings()
+	if(has_status_effect(STATUS_EFFECT_BURNT_WINGS))
+		to_chat(src, "<span class='warning'>Your wings are burnt off!</span>")
+		return
+
+	if(body_accessory && istype(body_accessory, /datum/body_accessory/wing))
+		var/datum/body_accessory/wing/wings = body_accessory
+		if(wings.is_open)
+			wings.is_open = FALSE
+			wings.icon = initial(wings.icon)
+			wings.pixel_x_offset = initial(wings.pixel_x_offset)
+			update_wing_layer()
+			return
+		wings.is_open = TRUE
+		wings.icon = wings.open_icon
+		wings.pixel_x_offset = -22 // Center these bad boys
+		update_wing_layer()

code/modules/mob/living/carbon/human/species/moth.dm

@@ -118,14 +118,26 @@
 	if(isobj(H.loc))
 		// Can't fly if you're in a box/mech/whatever.
 		return FALSE
+	// Open your wings to fly
+	if(H.body_accessory && istype(H.body_accessory, /datum/body_accessory/wing))
+		var/datum/body_accessory/wing/wings = H.body_accessory
+		if(!wings.is_open)
+			return FALSE
 	var/turf/T = get_turf(H)
 	var/datum/gas_mixture/current = T.get_readonly_air()
 	if(current && (current.return_pressure() >= ONE_ATMOSPHERE * 0.85)) //as long as there's reasonable pressure and no gravity, flight is possible
 		return TRUE
 
 /datum/species/moth/spec_thunk(mob/living/carbon/human/H)
-	if(!H.has_status_effect(STATUS_EFFECT_BURNT_WINGS))
-		return TRUE
+	if(H.has_status_effect(STATUS_EFFECT_BURNT_WINGS))
+		return FALSE
+
+	if(H.body_accessory && istype(H.body_accessory, /datum/body_accessory/wing))
+		var/datum/body_accessory/wing/wings = H.body_accessory
+		if(!wings.is_open)
+			return FALSE
+
+	return TRUE
 
 /datum/species/moth/spec_movement_delay()
 	return FALSE