refactor

systems/chat_system.gd

@@ -0,0 +1,16 @@
+extends Node
+
+func send(text: String) -> void:
+  var msg: String = text.strip_edges()
+  if msg == "":
+    return
+  var sender: String = Net.local_name
+  var id: int = Net.local_id()
+  if multiplayer.multiplayer_peer == null:
+    EventBus.chat_message.emit(id, sender, msg)
+    return
+  _broadcast.rpc(id, sender, msg)
+
+@rpc("any_peer", "reliable", "call_local")
+func _broadcast(peer_id: int, sender: String, msg: String) -> void:
+  EventBus.chat_message.emit(peer_id, sender, msg)