Split client and server

client/shared/NetworkNode.gd

@@ -0,0 +1,23 @@
+class_name NetworkNode
+extends Node
+
+var handlers: Array[Node] = []
+
+func _init():
+	handlers.resize(256)
+
+func get_handler(index: int) -> PacketHandler:
+	return handlers[index]
+
+func set_handler(index: int, node: PacketHandler):
+	handlers[index] = node
+
+func handle_packet(packet: PackedByteArray, peer: PacketPeer):
+	var type := packet.decode_u8(0)
+	var handler := get_handler(type)
+
+	if handler == null:
+		push_warning("Unknown packet type %d" % type)
+		return
+
+	handler.handle_packet(packet.slice(1), peer)