Music to my ears.

autoloads/global_sounds.tscn

@@ -14,7 +14,6 @@ sounds = {
 [node name="SoggyAmbience" type="AudioStreamPlayer" parent="."]
 stream = ExtResource("2_3njyb")
 volume_db = -10.0
-autoplay = true
 bus = &"Background Sound"
 
 [node name="WinSound" type="AudioStreamPlayer" parent="."]

autoloads/music.gd

@@ -0,0 +1,53 @@
+@tool
+extends Node
+
+
+@export_dir var songs_dir: String
+@export_tool_button("Update Songs") var _update_songs_action = _update_songs
+@export var songs: Dictionary[StringName, AudioStream]
+
+@export var player_a: AudioStreamPlayer
+@export var player_b: AudioStreamPlayer
+
+
+@onready var _active_player: AudioStreamPlayer = player_a
+@onready var _tween: Tween = null
+
+
+func play_song(id: StringName, crossfade_time: float = 0.0, restart: bool = false) -> void:
+	var new_stream = songs.get(id) as AudioStream
+	if new_stream:
+		if not restart and _active_player.stream == new_stream:
+			return
+		var new_player = player_b if _active_player == player_a else player_a
+		new_player.stream = new_stream
+		new_player.play()
+		
+		if crossfade_time > 0.0:
+			new_player.volume_linear = 0.0
+			if _tween:
+				_tween.kill()
+			_tween = create_tween().set_parallel()
+			_tween.tween_property(new_player, ^"volume_linear", 1.0, crossfade_time)
+			_tween.tween_property(_active_player, ^"volume_linear", 0.0, crossfade_time)
+			_tween.chain().tween_callback(_active_player.stop)
+		else:
+			new_player.volume_linear = 1.0
+			_active_player.stop()
+		
+		_active_player = new_player
+
+
+func _update_songs() -> void:
+	songs.clear()
+	var dir = DirAccess.open(songs_dir)
+	if dir:
+		dir.list_dir_begin()
+		var file = dir.get_next()
+		while file != "":
+			if not dir.current_is_dir() and not file.ends_with(".import"):
+				var stream := load(songs_dir + "/" + file) as AudioStream
+				if stream:
+					songs[file.get_basename()] = stream
+			file = dir.get_next()
+	notify_property_list_changed()

autoloads/music.gd.uid

@@ -0,0 +1 @@
+uid://dgi1v18r8dx4q

autoloads/music.tscn

@@ -0,0 +1,19 @@
+[gd_scene load_steps=3 format=3 uid="uid://cxrhw5ic2vunh"]
+
+[ext_resource type="Script" uid="uid://dgi1v18r8dx4q" path="res://autoloads/music.gd" id="1_16wm1"]
+[ext_resource type="AudioStream" uid="uid://dmctaba7v1rgu" path="res://assets/music/bug_music.ogg" id="2_kl0u4"]
+
+[node name="Music" type="Node" node_paths=PackedStringArray("player_a", "player_b")]
+script = ExtResource("1_16wm1")
+songs_dir = "res://assets/music"
+songs = Dictionary[StringName, AudioStream]({
+&"bug_music": ExtResource("2_kl0u4")
+})
+player_a = NodePath("MusicPlayerA")
+player_b = NodePath("MusicPlayerB")
+
+[node name="MusicPlayerA" type="AudioStreamPlayer" parent="."]
+bus = &"Music"
+
+[node name="MusicPlayerB" type="AudioStreamPlayer" parent="."]
+bus = &"Music"

autoloads/scene_manager.tscn

@@ -1,8 +1,6 @@
-[gd_scene load_steps=4 format=3 uid="uid://ckgsfhfpg00ys"]
+[gd_scene load_steps=2 format=3 uid="uid://ckgsfhfpg00ys"]
 
 [ext_resource type="Script" uid="uid://crlo6ow7fo6ca" path="res://autoloads/scene_manager.gd" id="1_1hxm1"]
-[ext_resource type="AudioStream" uid="uid://sci5aqar0oyx" path="res://assets/audio/bgs/amb_sog.wav" id="2_dr7pa"]
-[ext_resource type="AudioStream" uid="uid://flc817bekeh6" path="res://assets/audio/sfx/level_win.ogg" id="3_8ri5f"]
 
 [node name="SceneManager" type="Node" node_paths=PackedStringArray("viewport", "viewport_holder")]
 script = ExtResource("1_1hxm1")
@@ -49,14 +47,3 @@ handle_input_locally = false
 canvas_item_default_texture_filter = 0
 size = Vector2i(288, 216)
 render_target_update_mode = 4
-
-[node name="AudioStreamPlayer" type="AudioStreamPlayer" parent="."]
-stream = ExtResource("2_dr7pa")
-volume_db = -10.0
-autoplay = true
-bus = &"Background Sound"
-
-[node name="WinSound" type="AudioStreamPlayer" parent="."]
-stream = ExtResource("3_8ri5f")
-volume_db = -6.558
-bus = &"Sound Effects"