Cryo can only heal burn wounds (#19418)

* Update cryo.dm

* only burns

* does stuff

code/__DEFINES/wounds.dm

@@ -116,6 +116,8 @@ GLOBAL_LIST_INIT(global_all_wound_types, list(/datum/wound/blunt/critical, /datu
 #define MANGLES_BONE	(1<<3)
 /// If this wound marks the limb as being allowed to have gauze applied
 #define ACCEPTS_GAUZE	(1<<4)
+/// If this wound can be healed by cryoxadone
+#define ACCEPTS_CRYO	(1<<5)
 
 // ~scar persistence defines
 // The following are the order placements for persistent scar save formats

code/datums/wounds/_wounds.dm

@@ -324,6 +324,8 @@
 
 /// Called from cryoxadone and pyroxadone when they're proc'ing. Wounds will slowly be fixed separately from other methods when these are in effect. crappy name but eh
 /datum/wound/proc/on_xadone(power)
+	if(!(wound_flags & ACCEPTS_CRYO))
+		return
 	cryo_progress += power
 	if(cryo_progress > 66 * severity)
 		qdel(src)

code/datums/wounds/burns.dm

@@ -10,7 +10,7 @@
 	wound_type = WOUND_BURN
 	processes = TRUE
 	sound_effect = 'sound/effects/wounds/sizzle1.ogg'
-	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE)
+	wound_flags = (FLESH_WOUND | ACCEPTS_GAUZE | ACCEPTS_CRYO)
 
 	treatable_by = list(/obj/item/stack/medical/ointment, /obj/item/stack/medical/mesh) // sterilizer and alcohol will require reagent treatments, coming soon
 

code/modules/atmospherics/machinery/components/unary_devices/cryo.dm

@@ -209,16 +209,18 @@
 			robotic_limb_damage += limb.get_damage(stamina=FALSE)
 
 	if(mob_occupant.health >= mob_occupant.getMaxHealth() - robotic_limb_damage) // Don't bother with fully healed people. Now takes robotic limbs into account.
-		if(C)
-			if(C.all_wounds)
+		var/has_cryo_wound = FALSE
+		if(C && C.all_wounds)
+			for(var/datum/wound/wound as anything in C.all_wounds)
+				if(wound.wound_flags & ACCEPTS_CRYO)
 					if(!treating_wounds) // if we have wounds and haven't already alerted the doctors we're only dealing with the wounds, let them know
-					treating_wounds = TRUE
 						playsound(src, 'sound/machines/cryo_warning.ogg', volume) // Bug the doctors.
-					var/msg = "Patient vitals fully recovered, continuing automated wound treatment."
+						var/msg = "Patient vitals fully recovered, continuing automated burn treatment."
 						radio.talk_into(src, msg, radio_channel)
-			else // otherwise if we were only treating wounds and now we don't have any, turn off treating_wounds so we can boot 'em out
-				treating_wounds = FALSE
+					has_cryo_wound = TRUE
+					break
 
+		treating_wounds = has_cryo_wound
 		if(!treating_wounds)
 			on = FALSE
 			update_icon()