Music to my ears.

addons/capri_tools/global_music_selector.gd

@@ -0,0 +1,46 @@
+extends EditorProperty
+
+
+var _dropdown_button := Button.new()
+
+var _popup_menu := PopupMenu.new()
+
+
+func _init() -> void:
+	_dropdown_button.pressed.connect(_show_popup)
+	_dropdown_button.icon = EditorInterface.get_editor_theme().get_icon("AudioStreamWAV", "EditorIcons")
+	
+	_popup_menu.index_pressed.connect(_on_song_selected)
+	
+	add_child(_dropdown_button)
+	add_child(_popup_menu)
+	add_focusable(_dropdown_button)
+
+
+func _update_property() -> void:
+	var new_value: StringName = get_edited_object()[get_edited_property()]
+	_dropdown_button.text = new_value.capitalize()
+
+
+func _show_popup() -> void:
+	var songs = Music.songs.keys()
+	
+	_popup_menu.clear()
+	for sound: StringName in songs:
+		_popup_menu.add_icon_item(
+			EditorInterface.get_editor_theme().get_icon("AudioStreamWAV", "EditorIcons"),
+			sound.capitalize()
+		)
+	
+	var button_rect = _dropdown_button.get_global_rect()
+	_popup_menu.reset_size()
+	var popup_pos = button_rect.position + Vector2(DisplayServer.window_get_position())
+	_popup_menu.position = popup_pos
+	_popup_menu.min_size.x = button_rect.size.x
+	_popup_menu.popup()
+
+
+func _on_song_selected(index: int) -> void:
+	var sound = Music.songs.keys()[index]
+	_dropdown_button.grab_focus()
+	emit_changed(get_edited_property(), sound)

addons/capri_tools/global_music_selector.gd.uid

@@ -0,0 +1 @@
+uid://uc6u3ls6jx3y

addons/capri_tools/global_sound_selector_plugin.gd

@@ -2,6 +2,7 @@ extends EditorInspectorPlugin
 
 
 const GlobalSoundSelector = preload("global_sound_selector.gd")
+const GlobalMusicSelector = preload("global_music_selector.gd")
 
 
 func _can_handle(object: Object) -> bool:
@@ -9,8 +10,11 @@ func _can_handle(object: Object) -> bool:
 
 
 func _parse_property(object: Object, type: Variant.Type, name: String, hint_type: PropertyHint, hint_string: String, usage_flags: int, wide: bool) -> bool:
-	if type == TYPE_STRING_NAME and hint_string == "global_sound":
-		add_property_editor(name, GlobalSoundSelector.new())
-		return true
-	else:
-		return false
+	if type == TYPE_STRING_NAME:
+		if hint_string == "global_sound":
+			add_property_editor(name, GlobalSoundSelector.new())
+			return true
+		if hint_string == "global_music":
+			add_property_editor(name, GlobalMusicSelector.new())
+			return true
+	return false

assets/music/bug_music.ogg.import

@@ -0,0 +1,19 @@
+[remap]
+
+importer="oggvorbisstr"
+type="AudioStreamOggVorbis"
+uid="uid://dmctaba7v1rgu"
+path="res://.godot/imported/bug_music.ogg-4e14ca93037a40f8bd3b8d23ee565dcc.oggvorbisstr"
+
+[deps]
+
+source_file="res://assets/music/bug_music.ogg"
+dest_files=["res://.godot/imported/bug_music.ogg-4e14ca93037a40f8bd3b8d23ee565dcc.oggvorbisstr"]
+
+[params]
+
+loop=true
+loop_offset=28.0
+bpm=0.0
+beat_count=0
+bar_beats=4

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"

default_bus_layout.tres

@@ -10,23 +10,29 @@ spread = 0.3
 wet = 0.1
 
 [resource]
-bus/1/name = &"Capri"
+bus/1/name = &"Music"
 bus/1/solo = false
 bus/1/mute = false
 bus/1/bypass_fx = false
 bus/1/volume_db = 0.0
 bus/1/send = &"Master"
-bus/1/effect/0/effect = SubResource("AudioEffectReverb_rn7sq")
-bus/1/effect/0/enabled = true
-bus/2/name = &"Background Sound"
+bus/2/name = &"Capri"
 bus/2/solo = false
 bus/2/mute = false
 bus/2/bypass_fx = false
 bus/2/volume_db = 0.0
 bus/2/send = &"Master"
-bus/3/name = &"Sound Effects"
+bus/2/effect/0/effect = SubResource("AudioEffectReverb_rn7sq")
+bus/2/effect/0/enabled = true
+bus/3/name = &"Background Sound"
 bus/3/solo = false
 bus/3/mute = false
 bus/3/bypass_fx = false
 bus/3/volume_db = 0.0
 bus/3/send = &"Master"
+bus/4/name = &"Sound Effects"
+bus/4/solo = false
+bus/4/mute = false
+bus/4/bypass_fx = false
+bus/4/volume_db = 0.0
+bus/4/send = &"Master"

maps/descent/tutorial.tscn

@@ -21,6 +21,7 @@ shader_parameter/fps = 15.0
 script = ExtResource("1_8bygc")
 title = "Obligatory Tutorial Level"
 id = "tutorial"
+music = &"bug_music"
 
 [node name="Sprite2D" type="Sprite2D" parent="."]
 material = SubResource("ShaderMaterial_sf5kh")

maps/level_z.tscn

@@ -13,6 +13,7 @@ script = ExtResource("1_hcs1r")
 title = "Test Level Z"
 id = "z-level"
 order = 2
+music = &"bug_music"
 
 [node name="Background" type="Sprite2D" parent="."]
 modulate = Color(0.996924, 0.421436, 0, 1)

project.godot

@@ -20,6 +20,7 @@ config/icon="res://icon.svg"
 SceneManager="*res://autoloads/scene_manager.tscn"
 Levels="*res://autoloads/levels.tscn"
 GlobalSounds="*res://autoloads/global_sounds.tscn"
+Music="*res://autoloads/music.tscn"
 
 [display]
 

scripts/level/level.gd

@@ -5,3 +5,8 @@ extends Node2D
 @export var title: String
 @export var id: String
 @export_range(0,1,1,"or_greater") var order: int
+@export_custom(0, "global_music") var music: StringName
+
+
+func _ready() -> void:
+	Music.play_song(music)