Creates an ambience global list for icebox and adds 10 new tracks to …

…the exterior! (THANK YOU JOHN WILLARD!) (tgstation#76905)

## About The Pull Request

Creates an ambience global list for icebox and adds ten new tracks to
the exterior. Among the tracks are 5 instrumental stings, 4 microsong
melodies, and 1 thematic song.

HUGE thanks to John Willard for managing the coding aspect of this. All
the music is my creation, but without him, it'd just be sitting on my
hard drive. Love the guy.

## Why It's Good For The Game

Differentiates lavaland and icebox stylistically in their tones, key,
and musical instrumentation. Makes the world feel more alive!
If you want to add more ambient tracks for the zone, all of the tracks
come in the following keys:
G# HARMONIC MINOR
G# NATURAL MINOR
Db NATURAL MINOR

## Changelog

:cl:
add: Ambient tracks for icebox.
add: Independent global_list for icebox.
/:cl:

---------

Co-authored-by: JohnFulpWillard <[email protected]>

code/__DEFINES/sound.dm

@@ -44,6 +44,7 @@
 #define AMBIENCE_RUINS "ruins"
 #define AMBIENCE_ENGI "engi"
 #define AMBIENCE_MINING "mining"
+#define AMBIENCE_ICEMOON "icemoon"
 #define AMBIENCE_MEDICAL "med"
 #define AMBIENCE_VIROLOGY "viro"
 #define AMBIENCE_SPOOKY "spooky"

code/_globalvars/lists/ambience.dm

@@ -58,7 +58,7 @@ GLOBAL_LIST_INIT(engi_ambience,list(
 	'sound/ambience/ambitech3.ogg',
 ))
 
-GLOBAL_LIST_INIT(mining_ambience,list(
+GLOBAL_LIST_INIT(mining_ambience, list(
 	'sound/ambience/ambicave.ogg',
 	'sound/ambience/ambidanger.ogg',
 	'sound/ambience/ambidanger2.ogg',
@@ -76,6 +76,19 @@ GLOBAL_LIST_INIT(mining_ambience,list(
 	'sound/ambience/ambiruin7.ogg',
 ))
 
+GLOBAL_LIST_INIT(icemoon_ambience,list(
+	'sound/ambience/ambiicetheme.ogg',
+	'sound/ambience/ambiicemelody1.ogg',
+	'sound/ambience/ambiicemelody2.ogg',
+	'sound/ambience/ambiicemelody3.ogg',
+	'sound/ambience/ambiicemelody4.ogg',
+	'sound/ambience/ambiicesting1.ogg',
+	'sound/ambience/ambiicesting2.ogg',
+	'sound/ambience/ambiicesting3.ogg',
+	'sound/ambience/ambiicesting4.ogg',
+	'sound/ambience/ambiicesting5.ogg',
+))
+
 GLOBAL_LIST_INIT(medical_ambience,list(
 	'sound/ambience/ambinice.ogg',
 ))
@@ -181,6 +194,7 @@ GLOBAL_LIST_INIT(ambience_assoc,list(
 	AMBIENCE_MEDICAL = GLOB.medical_ambience,
 	AMBIENCE_VIROLOGY = GLOB.virology_ambience,
 	AMBIENCE_MINING = GLOB.mining_ambience,
+	AMBIENCE_ICEMOON = GLOB.icemoon_ambience,
 	AMBIENCE_REEBE = GLOB.reebe_ambience,
 	AMBIENCE_RUINS = GLOB.ruins_ambience,
 	AMBIENCE_SPACE = GLOB.space_ambience,

code/game/area/areas/mining.dm

@@ -189,6 +189,7 @@
 	has_gravity = STANDARD_GRAVITY
 	flags_1 = NONE
 	area_flags = UNIQUE_AREA | FLORA_ALLOWED
+	ambience_index = AMBIENCE_ICEMOON
 	sound_environment = SOUND_AREA_ICEMOON
 	ambient_buzz = 'sound/ambience/magma.ogg'
 
@@ -200,7 +201,6 @@
 	power_equip = FALSE
 	power_light = FALSE
 	requires_power = TRUE
-	ambience_index = AMBIENCE_MINING
 	area_flags = UNIQUE_AREA | FLORA_ALLOWED
 	min_ambience_cooldown = 70 SECONDS
 	max_ambience_cooldown = 220 SECONDS
@@ -242,7 +242,6 @@
 	power_environ = FALSE
 	power_equip = FALSE
 	power_light = FALSE
-	ambience_index = AMBIENCE_MINING
 	area_flags = UNIQUE_AREA | FLORA_ALLOWED
 	min_ambience_cooldown = 70 SECONDS
 	max_ambience_cooldown = 220 SECONDS