Implement audio management system with effects and music players; add settings for sound and music volume

ui/audio/owniverse_effects_player.gd

@@ -0,0 +1,31 @@
+class_name OwniverseEffectsPlayer
+extends AudioStreamPlayer
+
+const EFFECT_COOLDOWN_MSEC := 2000
+
+var enabled: bool = true
+var _effects: Dictionary = OwniverseAudioLoader.get_effects()
+var _last_played_msec: Dictionary = {}
+
+
+func set_enabled(value: bool) -> void:
+    enabled = value
+    stream_paused = not enabled
+
+
+func play_effect(effect_id: String) -> bool:
+    if not enabled:
+        return false
+    if not _effects.has(effect_id):
+        push_warning("Unknown sound effect: " + effect_id)
+        return false
+    if playing and stream == _effects[effect_id]:
+        return false
+    var now: int = Time.get_ticks_msec()
+    if now - int(_last_played_msec.get(effect_id, -EFFECT_COOLDOWN_MSEC)) < EFFECT_COOLDOWN_MSEC:
+        return false
+
+    stream = _effects[effect_id]
+    play()
+    _last_played_msec[effect_id] = now
+    return true