Merge pull request #10112 from Ghommie/Ghommie-cit447

Refactors that mess of a code for alternate worn clothing sprites for digitigrade and taurs.

code/modules/clothing/head/_head.dm

@@ -8,8 +8,6 @@
 	var/blockTracking = 0 //For AI tracking
 	var/can_toggle = null
 	dynamic_hair_suffix = "+generic"
-	var/muzzle_var = NORMAL_STYLE
-	mutantrace_variation = NO_MUTANTRACE_VARIATION //not all hats have muzzles
 
 /obj/item/clothing/head/Initialize()
 	. = ..()
@@ -17,30 +15,6 @@
 		var/mob/living/carbon/human/H = loc
 		H.update_hair()
 
-/obj/item/clothing/head/equipped(mob/user, slot)
-	..()
-	if(ishuman(user))
-		var/mob/living/carbon/human/H = user
-		var/datum/species/pref_species = H.dna.species
-
-		if(mutantrace_variation)
-			if("mam_snouts" in pref_species.default_features)
-				if(H.dna.features["mam_snouts"] != "None")
-					muzzle_var = ALT_STYLE
-				else
-					muzzle_var = NORMAL_STYLE
-
-			else if("snout" in pref_species.default_features)
-				if(H.dna.features["snout"] != "None")
-					muzzle_var = ALT_STYLE
-				else
-					muzzle_var = NORMAL_STYLE
-
-			else
-				muzzle_var = NORMAL_STYLE
-
-			H.update_inv_head()
-
 ///Special throw_impact for hats to frisbee hats at people to place them on their heads.
 /obj/item/clothing/head/throw_impact(atom/hit_atom, datum/thrownthing/thrownthing)
 	. = ..()
@@ -74,7 +48,7 @@
 
 
 
-/obj/item/clothing/head/worn_overlays(isinhands = FALSE)
+/obj/item/clothing/head/worn_overlays(isinhands = FALSE, icon_file, style_flags = NONE)
 	. = list()
 	if(!isinhands)
 		if(damaged_clothes)

code/modules/clothing/head/hardhat.dm

@@ -91,7 +91,7 @@
 	max_heat_protection_temperature = FIRE_IMMUNITY_MAX_TEMP_PROTECT
 	cold_protection = HEAD
 	min_cold_protection_temperature = FIRE_HELM_MIN_TEMP_PROTECT
-	mutantrace_variation = MUTANTRACE_VARIATION
+	mutantrace_variation = STYLE_MUZZLE
 
 /obj/item/clothing/head/hardhat/weldhat
 	name = "welding hard hat"
@@ -125,7 +125,7 @@
 		playsound(src, 'sound/mecha/mechmove03.ogg', 50, TRUE) //Visors don't just come from nothing
 	update_icon()
 
-/obj/item/clothing/head/hardhat/weldhat/worn_overlays(isinhands)
+/obj/item/clothing/head/hardhat/weldhat/worn_overlays(isinhands, icon_file, style_flags = NONE)
 	. = ..()
 	if(!isinhands)
 		. += mutable_appearance('icons/mob/head.dmi', "weldhelmet")

code/modules/clothing/head/helmet.dm

@@ -76,7 +76,7 @@
 	flags_cover = HEADCOVERSEYES | HEADCOVERSMOUTH
 	visor_flags_cover = HEADCOVERSEYES | HEADCOVERSMOUTH
 	dog_fashion = null
-	mutantrace_variation = MUTANTRACE_VARIATION
+	mutantrace_variation = STYLE_MUZZLE
 
 /obj/item/clothing/head/helmet/attack_self(mob/user)
 	if(can_toggle && !user.incapacitated())
@@ -217,7 +217,7 @@
 	flags_cover = HEADCOVERSEYES | HEADCOVERSMOUTH
 	strip_delay = 80
 	dog_fashion = null
-	mutantrace_variation = MUTANTRACE_VARIATION
+	mutantrace_variation = STYLE_MUZZLE
 
 
 /obj/item/clothing/head/helmet/knight/Initialize(mapload)
@@ -246,7 +246,7 @@
 	icon_state = "skull"
 	item_state = "skull"
 	strip_delay = 100
-	mutantrace_variation = MUTANTRACE_VARIATION
+	mutantrace_variation = STYLE_MUZZLE
 
 //LightToggle
 

code/modules/clothing/head/misc.dm

@@ -66,7 +66,7 @@
 	item_state = "syndicate-helm-black-red"
 	desc = "A plastic replica of a Syndicate agent's space helmet. You'll look just like a real murderous Syndicate agent in this! This is a toy, it is not made for use in space!"
 	flags_inv = HIDEMASK|HIDEEARS|HIDEEYES|HIDEFACE|HIDEHAIR|HIDEFACIALHAIR|HIDESNOUT
-	mutantrace_variation = MUTANTRACE_VARIATION
+	mutantrace_variation = STYLE_MUZZLE
 
 /obj/item/clothing/head/cueball
 	name = "cueball helmet"

code/modules/clothing/head/misc_special.dm

@@ -28,7 +28,7 @@
 	visor_flags_inv = HIDEMASK|HIDEEARS|HIDEEYES|HIDEFACE
 	visor_flags_cover = HEADCOVERSEYES | HEADCOVERSMOUTH
 	resistance_flags = FIRE_PROOF
-	mutantrace_variation = MUTANTRACE_VARIATION
+	mutantrace_variation = STYLE_MUZZLE
 
 /obj/item/clothing/head/welding/attack_self(mob/user)
 	weldingvisortoggle(user)
@@ -206,7 +206,7 @@
 		M.color = hair_color
 		add_overlay(M)
 
-/obj/item/clothing/head/wig/worn_overlays(isinhands = FALSE, file2use)
+/obj/item/clothing/head/wig/worn_overlays(isinhands = FALSE, icon_file, style_flags = NONE)
 	. = list()
 	if(!isinhands)
 		var/datum/sprite_accessory/S = GLOB.hair_styles_list[hair_style]