TTS pitch now affects emote sounds (#87275)

## About The Pull Request
Closes #87274
If TTS is enabled and supports vocal pitch, certain emotes will have a
far smaller frequency range but will become affected by your chosen TTS
pitch. Frequency equation is non-linear as pitch scales from -12 to 12

## Why It's Good For The Game

Makes vocal emotes a bit more immersive as now they'll fit your
character's tone.

## Changelog
🆑
add: TTS pitch now affects emote sounds
/🆑

code/__DEFINES/sound.dm

@@ -205,5 +205,10 @@ GLOBAL_LIST_INIT(announcer_keys, list(
 #define SFX_HALLUCINATION_I_M_HERE "hallucination_i_m_here"
 #define SFX_VOID_DEFLECT "void_deflect"
 #define SFX_LOW_HISS "low_hiss"
-
 #define SFX_INDUSTRIAL_SCAN "industrial_scan"
+
+// Default is 45kbps
+#define MIN_EMOTE_PITCH 42000
+#define MAX_EMOTE_PITCH 50000
+// ~0.6 - 1.4 at 0.12
+#define EMOTE_TTS_PITCH_MULTIPLIER 0.12

code/datums/emotes.dm

@@ -52,6 +52,8 @@
 	var/sound
 	/// Does this emote vary in pitch?
 	var/vary = FALSE
+	/// If this emote's sound is affected by TTS pitch
+	var/affected_by_pitch = TRUE
 	/// Can only code call this event instead of the player.
 	var/only_forced_audio = FALSE
 	/// The cooldown between the uses of the emote.
@@ -105,7 +107,10 @@
 	if(tmp_sound && should_play_sound(user, intentional) && TIMER_COOLDOWN_FINISHED(user, "general_emote_audio_cooldown") && TIMER_COOLDOWN_FINISHED(user, type))
 		TIMER_COOLDOWN_START(user, type, specific_emote_audio_cooldown)
 		TIMER_COOLDOWN_START(user, "general_emote_audio_cooldown", general_emote_audio_cooldown)
-		playsound(source = user,soundin = tmp_sound,vol = 50, vary = vary, ignore_walls = sound_wall_ignore)
+		var/frequency = null
+		if (affected_by_pitch && SStts.tts_enabled && SStts.pitch_enabled)
+			frequency = rand(MIN_EMOTE_PITCH, MAX_EMOTE_PITCH) * (1 + sqrt(abs(user.pitch)) * SIGN(user.pitch) * EMOTE_TTS_PITCH_MULTIPLIER)
+		playsound(source = user,soundin = tmp_sound,vol = 50, vary = vary, ignore_walls = sound_wall_ignore, frequency = frequency)
 
 	var/is_important = emote_type & EMOTE_IMPORTANT
 	var/is_visual = emote_type & EMOTE_VISIBLE

code/modules/mob/emote.dm

@@ -150,6 +150,7 @@
 	message = "jumps!"
 	// Allows ghosts to jump
 	mob_type_ignore_stat_typecache = list(/mob/dead/observer)
+	affected_by_pitch = FALSE
 
 /datum/emote/jump/run_emote(mob/user, params, type_override, intentional)
 	. = ..()

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

@@ -23,6 +23,7 @@
 	hands_use_check = TRUE
 	emote_type = EMOTE_AUDIBLE | EMOTE_VISIBLE
 	vary = TRUE
+	affected_by_pitch = FALSE
 
 /datum/emote/living/carbon/clap/get_sound(mob/living/user)
 	if(!user.get_bodypart(BODY_ZONE_L_ARM) || !user.get_bodypart(BODY_ZONE_R_ARM))
@@ -175,6 +176,7 @@
 	message_param = "snaps their fingers at %t."
 	emote_type = EMOTE_AUDIBLE | EMOTE_VISIBLE
 	hands_use_check = TRUE
+	affected_by_pitch = FALSE
 
 /datum/emote/living/carbon/snap/get_sound(mob/living/user)
 	if(ishuman(user))