Adds TTS to the game. Players can select their own voices in preferences. (#74775)

Co-authored-by: Watermelon914 <3052169-Watermelon914@users.noreply.gitlab.com>
Co-authored-by: Kyle Spier-Swenson <kyleshome@gmail.com>
Co-authored-by: Iamgoofball <iamgoofball@gmail.com>
Co-authored-by: Zephyr <12817816+ZephyrTFA@users.noreply.github.com>
Co-authored-by: Mothblocks <35135081+Mothblocks@users.noreply.github.com>

code/modules/client/preferences/middleware/tts.dm

@@ -0,0 +1,16 @@
+/// Middleware to handle quirks
+/datum/preference_middleware/tts
+	/// Cooldown on requesting a TTS preview.
+	COOLDOWN_DECLARE(tts_test_cooldown)
+
+	action_delegations = list(
+		"play_voice" = PROC_REF(play_voice),
+	)
+
+/datum/preference_middleware/tts/proc/play_voice(list/params, mob/user)
+	if(!COOLDOWN_FINISHED(src, tts_test_cooldown))
+		return TRUE
+	var/speaker = preferences.read_preference(/datum/preference/choiced/voice)
+	COOLDOWN_START(src, tts_test_cooldown, 0.5 SECONDS)
+	INVOKE_ASYNC(SStts, TYPE_PROC_REF(/datum/controller/subsystem/tts, queue_tts_message), user.client, "Hello, this is my voice.", speaker = speaker, local = TRUE)
+	return TRUE

code/modules/client/preferences/sounds.dm

@@ -28,6 +28,11 @@
 	savefile_key = "sound_instruments"
 	savefile_identifier = PREFERENCE_PLAYER
 
+/datum/preference/toggle/sound_tts
+	category = PREFERENCE_CATEGORY_GAME_PREFERENCES
+	savefile_key = "sound_tts"
+	savefile_identifier = PREFERENCE_PLAYER
+
 /// Controls hearing dance machines
 /datum/preference/toggle/sound_jukebox
 	category = PREFERENCE_CATEGORY_GAME_PREFERENCES

code/modules/client/preferences/voice.dm

@@ -0,0 +1,26 @@
+/// TTS voice preference
+/datum/preference/choiced/voice
+	savefile_identifier = PREFERENCE_CHARACTER
+	savefile_key = "tts_voice"
+	category = PREFERENCE_CATEGORY_NON_CONTEXTUAL
+
+/datum/preference/choiced/voice/is_accessible(datum/preferences/preferences)
+	if(!SStts.tts_enabled)
+		return FALSE
+	return ..()
+
+/datum/preference/choiced/voice/init_possible_values()
+	if(SStts.tts_enabled)
+		return SStts.available_speakers
+	if(fexists("data/cached_tts_voices.json"))
+		var/list/text_data = rustg_file_read("data/cached_tts_voices.json")
+		var/list/cached_data = json_decode(text_data)
+		if(!cached_data)
+			return list("invalid")
+		return cached_data
+	return list("invalid")
+
+/datum/preference/choiced/voice/apply_to_human(mob/living/carbon/human/target, value)
+	if(SStts.tts_enabled && !(value in SStts.available_speakers))
+		value = pick(SStts.available_speakers) // As a failsafe
+	target.voice = value