Spatial 2D sound w/ reverb, first attempt

core/polygon/polygon.gd

@@ -0,0 +1,25 @@
+@tool
+extends CollisionPolygon2D
+
+@export var color: Color = Color.WHITE:
+	set(v):
+		color = v
+		update_polygon()
+	get():
+		return color
+
+@export var update: bool:
+	set(v):
+		update_polygon()
+
+func update_polygon():
+	# normal polygon
+	$Polygon2D.polygon = polygon
+	$Polygon2D.color = color
+	# light occluder
+	var lo_polygon = OccluderPolygon2D.new()
+	lo_polygon.polygon = polygon
+	$LightOccluder2D.occluder = lo_polygon
+
+func _ready() -> void:
+	update_polygon()