Fixes runtimes when you talk with a cig butt in your mouth (#28250)

* Minor fixes

* Oops

* Funnyman review

code/modules/mob/living/carbon/carbon_procs.dm

@@ -1253,8 +1253,9 @@ so that different stomachs can handle things in different ways VB*/
 	if(istype(head, /obj/item/clothing/head))
 		var/obj/item/clothing/head/HT = head
 		. += HT.tint
-	if(istype(wear_mask))
-		. += wear_mask.tint
+	if(ismask(wear_mask))
+		var/obj/item/clothing/mask/worn_mask = wear_mask
+		. += worn_mask.tint
 
 	var/obj/item/organ/internal/eyes/E = get_organ_slot("eyes")
 	if(E)

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

@@ -90,9 +90,11 @@
 		to_chat(user, "<span class='warning'>Your throat hurts too much to do it right now. Wait [round((cooldown - world.time) / 10)] seconds and try again.</span>")
 		return
 	if(!welding_fuel_used || user.reagents.has_reagent("fuel", welding_fuel_used))
-		if((user.head?.flags_cover & HEADCOVERSMOUTH) || (user.wear_mask?.flags_cover & MASKCOVERSMOUTH) && !user.wear_mask?.up)
-			to_chat(user, "<span class='warning'>Your mouth is covered.</span>")
-			return
+		if(ismask(user.wear_mask))
+			var/obj/item/clothing/mask/worn_mask = user.wear_mask
+			if((user.head?.flags_cover & HEADCOVERSMOUTH) || (worn_mask.flags_cover & MASKCOVERSMOUTH) && !worn_mask.up)
+				to_chat(user, "<span class='warning'>Your mouth is covered.</span>")
+				return
 		var/obj/item/match/unathi/fire = new(user.loc, src)
 		if(user.put_in_hands(fire))
 			to_chat(user, "<span class='notice'>You ignite a small flame in your mouth.</span>")

code/modules/mob/mob_vars.dm

@@ -80,8 +80,9 @@
 	var/obj/item/back = null //Human
 	var/obj/item/tank/internal = null //Human
 	/// Active storage container
-	var/obj/item/storage/s_active = null //Carbon
-	var/obj/item/clothing/mask/wear_mask = null //Carbon
+	var/obj/item/storage/s_active
+	/// The currently worn mask
+	var/obj/item/wear_mask
 
 	/// The instantiated version of the mob's hud.
 	var/datum/hud/hud_used = null