SE manager working. Mushroom pew now pows.

lib/singleton_autoloads/SoundEffectManager.gd

@@ -0,0 +1,53 @@
+extends Node
+
+export (int) var player_count = 5
+
+class SoundRequest:
+	var stream
+	var priority = 0
+
+	func _init(_stream: AudioStream, _priority: int = 0):
+		stream = _stream
+		priority = _priority
+
+var players := []
+var sound_queue := []
+
+func _ready():
+	## Singletons don't run process unless explicitly enabled
+	set_process(true)
+	
+	for i in range(player_count):
+		var player = AudioStreamPlayer.new()
+		add_child(player)
+		players.append(player)
+
+func play_sound(stream: AudioStream, priority: int = 0):
+	# Try to find an available player
+	for i in range(player_count):
+		if not players[i].playing:
+			players[i].stream = stream
+			players[i].play()
+			return
+	
+	##TODO: This may be slow, perhaps just a pop push front is good enough
+	# No player is available, add to queue
+	sound_queue.append(SoundRequest.new(stream, priority))
+	# Sort queue by priority (descending)
+	sound_queue.sort_custom(self, "_sort_by_priority")
+
+func _process(_delta):
+	if sound_queue.empty():
+		return
+
+	for i in range(player_count):
+		if not players[i].playing:
+			var request = sound_queue.pop_front()
+			players[i].stream = request.stream
+			players[i].play()
+			# only play one queued sound per frame
+			break
+
+func _sort_by_priority(a: SoundRequest, b: SoundRequest) -> bool:
+	return a.priority > b.priority
+

project.godot

@@ -224,6 +224,7 @@ PlayerInfo="*res://lib/singleton_autoloads/PlayerInfo.gd"
 UiManager="*res://lib/singleton_autoloads/UIManager.gd"
 LevelInfo="*res://lib/singleton_autoloads/LevelInfo.gd"
 NetworkManager="*res://lib/singleton_autoloads/NetworkManager.gd"
+SoundEffectManager="*res://lib/singleton_autoloads/SoundEffectManager.gd"
 
 [debug]
 

src/classes/projectile.gd

@@ -9,6 +9,7 @@ extends Area2D
 
 export var velocity_pps :float = 1
 export var lifespan :float = -1
+export var sound_effect :AudioStream
 var direction_normal := Vector2(0,0)
 puppet var puppet_direction_normal :Vector2
 puppet var puppet_position

src/components/PewMachine.gd

@@ -62,8 +62,10 @@ func shoot(direction = 1):
 
 	bullet.set_as_toplevel(true)
 	add_child(bullet)
+	
 #	sound_shoot.play()
 	timer.start()
+	SoundEffectManager.play_sound(bullet.sound_effect)
 
 	NetworkManager.instance_on_peer_players(loaded_scene, self.get_path(), global_position , true)
 	return true

src/projectiles/MushroomPew.tscn

@@ -1,7 +1,8 @@
-[gd_scene load_steps=4 format=2]
+[gd_scene load_steps=5 format=2]
 
 [ext_resource path="res://src/parent_scenes/projectile.tscn" type="PackedScene" id=1]
 [ext_resource path="res://assets/items/mushroom_icon.png" type="Texture" id=2]
+[ext_resource path="res://assets_tmp/SE/pop.wav" type="AudioStream" id=3]
 
 [sub_resource type="CapsuleShape2D" id=1]
 radius = 6.0
@@ -10,6 +11,7 @@ height = 2.0
 [node name="MushroomPew" groups=["world"] instance=ExtResource( 1 )]
 velocity_pps = 300.0
 lifespan = 0.5
+sound_effect = ExtResource( 3 )
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="." index="0"]
 shape = SubResource( 1 )