Porting "Refactors language holder"

code/datums/brain_damage/imaginary_friend.dm

@@ -91,7 +91,6 @@
 
 	trauma = _trauma
 	owner = trauma.owner
-	copy_known_languages_from(owner, TRUE)
 
 	setup_friend()
 

code/datums/brain_damage/severe.dm

@@ -26,21 +26,15 @@
 	scan_desc = "extensive damage to the brain's language center"
 	gain_text = "<span class='warning'>You have trouble forming words in your head...</span>"
 	lose_text = "<span class='notice'>You suddenly remember how languages work.</span>"
-	var/datum/language_holder/prev_language
-	var/datum/language_holder/mob_language
 
 /datum/brain_trauma/severe/aphasia/on_gain()
-	mob_language = owner.get_language_holder()
-	prev_language = mob_language.copy()
-	mob_language.remove_all_languages()
-	mob_language.grant_language(/datum/language/aphasia)
+	owner.add_blocked_language(subtypesof(/datum/language/) - /datum/language/aphasia, LANGUAGE_APHASIA)
+	owner.grant_language(/datum/language/aphasia, TRUE, TRUE, LANGUAGE_APHASIA)
 	..()
 
 /datum/brain_trauma/severe/aphasia/on_lose()
-	mob_language.remove_language(/datum/language/aphasia)
-	mob_language.copy_known_languages_from(prev_language) //this will also preserve languages learned during the trauma
-	QDEL_NULL(prev_language)
-	mob_language = null
+	owner.remove_blocked_language(subtypesof(/datum/language/), LANGUAGE_APHASIA)
+	owner.remove_language(/datum/language/aphasia, TRUE, TRUE, LANGUAGE_APHASIA)
 	..()
 
 /datum/brain_trauma/severe/blindness

code/datums/diseases/advance/symptoms/voice_change.dm

@@ -30,7 +30,6 @@ Bonus
 	symptom_delay_max = 120
 	var/scramble_language = FALSE
 	var/datum/language/current_language
-	var/datum/language_holder/original_language
 	threshold_desc = list(
 		"Transmission 14" = "The host's language center of the brain is damaged, leading to complete inability to speak or understand any language.",
 		"Stage Speed 7" = "Changes voice more often.",
@@ -48,9 +47,6 @@ Bonus
 		symptom_delay_max = 85
 	if(A.properties["transmittable"] >= 14) //random language
 		scramble_language = TRUE
-		var/mob/living/M = A.affected_mob
-		var/datum/language_holder/mob_language = M.get_language_holder()
-		original_language = mob_language.copy()
 
 /datum/symptom/voice_change/Activate(datum/disease/advance/A)
 	if(!..())
@@ -64,12 +60,10 @@ Bonus
 			if(ishuman(M))
 				var/mob/living/carbon/human/H = M
 				H.SetSpecialVoice(H.dna.species.random_name(H.gender))
-				if(scramble_language)
-					H.remove_language(current_language)
+				if(scramble_language && !current_language)	// Last part prevents rerolling language with small amounts of cure.
 					current_language = pick(subtypesof(/datum/language) - /datum/language/common)
-					H.grant_language(current_language)
-					var/datum/language_holder/mob_language = H.get_language_holder()
-					mob_language.only_speaks_language = current_language
+					H.add_blocked_language(subtypesof(/datum/language) - current_language, LANGUAGE_VOICECHANGE)
+					H.grant_language(current_language, TRUE, TRUE, LANGUAGE_VOICECHANGE)
 
 /datum/symptom/voice_change/End(datum/disease/advance/A)
 	..()
@@ -77,7 +71,5 @@ Bonus
 		var/mob/living/carbon/human/H = A.affected_mob
 		H.UnsetSpecialVoice()
 	if(scramble_language)
-		var/mob/living/M = A.affected_mob
-		M.copy_known_languages_from(original_language, TRUE)
-		current_language = null
-		QDEL_NULL(original_language)
+		A.affected_mob.remove_blocked_language(subtypesof(/datum/language), LANGUAGE_VOICECHANGE)
+		A.affected_mob.remove_all_languages(LANGUAGE_VOICECHANGE)	// In case someone managed to get more than one anyway.

code/datums/dna.dm

@@ -355,6 +355,11 @@
 		var/datum/species/old_species = dna.species
 		dna.species = new_race
 		dna.species.on_species_gain(src, old_species, pref_load)
+		if(ishuman(src))
+			qdel(language_holder)
+			var/species_holder = initial(mrace.species_language_holder)
+			language_holder = new species_holder(src)
+		update_atom_languages()
 
 /mob/living/carbon/human/set_species(datum/species/mrace, icon_update = TRUE, pref_load = FALSE)
 	..()

code/datums/mind.dm

@@ -85,8 +85,7 @@
 
 /datum/mind/proc/get_language_holder()
 	if(!language_holder)
-		var/datum/language_holder/L = current.get_language_holder(shadow=FALSE)
-		language_holder = L.copy(src)
+		language_holder = new (src)
 
 	return language_holder
 
@@ -101,9 +100,6 @@
 		if(iscarbon(current))
 			var/mob/living/carbon/C = current
 			C.disable_intentional_combat_mode(TRUE)
-	if(!language_holder)
-		var/datum/language_holder/mob_holder = new_character.get_language_holder(shadow = FALSE)
-		language_holder = mob_holder.copy(src)
 
 	if(key)
 		if(new_character.key != key)					//if we're transferring into a body with a key associated which is not ours
@@ -131,6 +127,7 @@
 	transfer_martial_arts(new_character)
 	if(active || force_key_move)
 		new_character.key = key		//now transfer the key to link the client to our new body
+	current.update_atom_languages()
 
 //CIT CHANGE - makes arousal update when transfering bodies
 	if(isliving(new_character)) //New humans and such are by default enabled arousal. Let's always use the new mind's prefs.

code/datums/mutations/speech.dm

@@ -277,10 +277,10 @@
 
 /datum/mutation/human/stoner/on_acquiring(mob/living/carbon/human/owner)
 	..()
-	owner.grant_language(/datum/language/beachbum)
-	owner.remove_language(/datum/language/common)
+	owner.grant_language(/datum/language/beachbum, TRUE, TRUE, LANGUAGE_STONER)
+	owner.add_blocked_language(subtypesof(/datum/language) - /datum/language/beachbum, LANGUAGE_STONER)
 
 /datum/mutation/human/stoner/on_losing(mob/living/carbon/human/owner)
 	..()
-	owner.grant_language(/datum/language/common)
-	owner.remove_language(/datum/language/beachbum)
+	owner.remove_language(/datum/language/beachbum, TRUE, TRUE, LANGUAGE_STONER)
+	owner.remove_blocked_language(subtypesof(/datum/language) - /datum/language/beachbum, LANGUAGE_STONER)