Add fishtank sounds to cryo cell (#88466)

## About The Pull Request

~~Note to maints, need to wait until:~~
- ~~#88462~~

~~Is merged before adding this.~~ It's merged now. We good to go.

Adds some fishtank sounds to cryo cell when it's in use.



https://github.com/user-attachments/assets/4b2ec114-f38b-4a56-b2ee-8b1f2b5289cd



https://github.com/user-attachments/assets/8b00179c-c4c3-4e4a-8165-94226c2fd5de



https://github.com/user-attachments/assets/c59b9eb9-7605-4548-8bca-5d9f716fdecc



https://github.com/user-attachments/assets/fd14e6d6-053e-4e17-bca8-c68b18f6c6d6



https://github.com/user-attachments/assets/4f6de5d6-3698-4c94-94a6-9f093c7f2e02



https://github.com/user-attachments/assets/ee238c51-0b84-4757-8b87-202aa89eeb37



https://github.com/user-attachments/assets/270babce-ad54-4dc6-a0f7-748c8c446f0f



https://github.com/user-attachments/assets/abde675a-c792-474c-9bfc-099e3d064bb2



https://github.com/user-attachments/assets/9f3f92d0-4acf-4a5d-b32b-4f9cee85c6b3



https://github.com/user-attachments/assets/c43058c1-844d-4698-97b7-24e2322b281f

Taken from - https://freesound.org/people/DudeAwesome/sounds/386023/
Converted into OGG and split into 5 second sections
License: CC BY 4.0

## Why It's Good For The Game
Human fishtank immersion.

## Changelog
🆑
sound: Add fishtank looping sounds to cryo cells when in use. Sound is
from https://freesound.org/people/DudeAwesome/sounds/386023/
/🆑

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

code/datums/looping_sounds/machinery_sounds.dm

@@ -206,3 +206,19 @@
 	end_volume = 60
 	extra_range = MEDIUM_RANGE_SOUND_EXTRARANGE
 	falloff_exponent = 4
+
+/datum/looping_sound/cryo_cell
+	mid_sounds = list(
+		'sound/machines/cryo/cryo_1.ogg',
+		'sound/machines/cryo/cryo_2.ogg',
+		'sound/machines/cryo/cryo_3.ogg',
+		'sound/machines/cryo/cryo_4.ogg',
+		'sound/machines/cryo/cryo_5.ogg',
+		'sound/machines/cryo/cryo_6.ogg',
+		'sound/machines/cryo/cryo_7.ogg',
+		'sound/machines/cryo/cryo_8.ogg',
+		'sound/machines/cryo/cryo_9.ogg',
+		'sound/machines/cryo/cryo_10.ogg',
+	)
+	mid_length = 5 SECONDS
+	volume = 50

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

@@ -101,6 +101,8 @@
 	var/datum/gas_machine_connector/internal_connector
 	/// Check if the machine has been turned on
 	var/on = FALSE
+	/// The sound loop that can be heard when the generator is processing.
+	var/datum/looping_sound/cryo_cell/soundloop
 
 /datum/armor/unary_cryo_cell
 	energy = 100
@@ -119,6 +121,7 @@
 	occupant_vis = new(mapload, src)
 	vis_contents += occupant_vis
 	internal_connector = new(loc, src, dir, CELL_VOLUME * 0.5)
+	soundloop = new(src)
 
 	register_context()
 
@@ -130,6 +133,7 @@
 	QDEL_NULL(radio)
 	QDEL_NULL(beaker)
 	QDEL_NULL(internal_connector)
+	QDEL_NULL(soundloop)
 
 	return ..()
 
@@ -378,10 +382,14 @@
 /obj/machinery/cryo_cell/begin_processing()
 	. = ..()
 	SSair.start_processing_machine(src)
+	if(soundloop)
+		soundloop.start()
 
 /obj/machinery/cryo_cell/end_processing()
 	. = ..()
 	SSair.stop_processing_machine(src)
+	if(soundloop)
+		soundloop.stop()
 
 /obj/machinery/cryo_cell/on_set_is_operational(old_value)
 	//Turned off

sound/attributions.txt

@@ -214,4 +214,7 @@ sound\items\weapons\hammer_death_scream.ogg - Undefeatablesos' scream recorded b
 
 sound/machines/sink-faucet.ogg -- https://freesound.org/people/FOSSarts/sounds/740086/ -- by FOSSarts (CC0)
 
+cryo_1.ogg, cryo_2.ogg, cryo_3.ogg, cryo_4.ogg, cryo_5.ogg, cryo_6.ogg, cryo_7.ogg, cryo_8.ogg, cryo_9.ogg, cryo_10.ogg:
+converted to OGG / split apart (but is otherwise unchanged) -- original from https://freesound.org/people/DudeAwesome/sounds/386023/ by DudeAwesome -- License: CC BY 4.0
+
 sound/items/dice_roll.ogg -- https://freesound.org/people/Crovic/sounds/661935/ -- by Crovic (CC0)