Update audio manager, update Button on focus

Author: Unchained112

assets/MinimalUI/MinimalUI.tres

@@ -13,6 +13,10 @@ border_color = Color(0.282353, 0.282353, 0.282353, 1)
 
 [sub_resource type="StyleBoxFlat" id="StyleBoxFlat_8fanu"]
 bg_color = Color(0.145098, 0.145098, 0.145098, 1)
+border_width_left = 1
+border_width_top = 1
+border_width_right = 1
+border_width_bottom = 1
 
 [sub_resource type="StyleBoxFlat" id="3"]
 bg_color = Color(0, 0, 0, 1)
@@ -23,7 +27,7 @@ border_width_bottom = 1
 border_color = Color(1, 1, 1, 1)
 
 [sub_resource type="StyleBoxFlat" id="4"]
-bg_color = Color(0.129412, 0.129412, 0.129412, 1)
+bg_color = Color(0.497474, 0.497474, 0.497474, 1)
 border_width_left = 1
 border_width_top = 1
 border_width_right = 1

scripts/audio_manager.gd

@@ -1,13 +1,41 @@
 extends Node
+var num_effect_players = 64
+var available: Array = []  # The available players.
+var queue: Array = []  # The queue of sounds to play.
 
 @onready var music_player: AudioStreamPlayer = $MusicPlayer
 @onready var sound_player: AudioStreamPlayer = $SoundPlayer
 
 func _ready():
-	pass # Replace with function body.
+	# Create the pool of AudioStreamPlayer nodes.
+	for i in num_effect_players:
+		var p = AudioStreamPlayer.new()
+		add_child(p)
+		available.append(p)
+		p.finished.connect(_on_stream_finished.bind(p))
+		p.bus = "Sound Effect"
+
+func play(sound_path):
+	# Not to queue too many sounds in a short time interval
+	if len(queue) <= num_effect_players:
+		queue.append(sound_path)
+
+func _process(_delta):
+	# Play a queued sound if any players are available.
+	if not queue.is_empty() and not available.is_empty():
+		available[0].stream = load(queue.pop_front())
+		available[0].play()
+		available.pop_front()
 
 func play_button_sound():
 	sound_player.play()
 
 func play_music_sound():
 	music_player.play()
+
+func stop_music():
+	music_player.stop()
+
+func _on_stream_finished(stream):
+	# When finished playing a stream, make the player available again.
+	available.append(stream)