Initial push

Scripts/Server/server_lobby.gd

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+class_name ServerLobby
+extends Node
+
+
+#region Exports
+
+@export var players : Dictionary[int, PlayerData] = {}
+
+#endregion
+
+
+#region Variables
+
+var free_lobby_indexs : Array[int] = []
+
+#endregion
+
+
+#region Signals
+
+signal player_registered()
+
+#endregion
+
+
+#region Client RPC
+
+@rpc("any_peer", "call_local")
+func request_player_register(id: int, username) -> void:
+    #only run on the multiplayer instance
+    if not multiplayer.is_server():
+        return
+
+    player_register.rpc_id(1, id, username)
+
+@rpc("any_peer", "call_local")
+func update_client_players(id : int, username : String) -> void:
+    if not players.has(id):
+        players[id] = PlayerData.new(id, players.size(), username)
+
+    player_registered.emit()
+
+#endregion
+
+
+#region Server RPC
+
+@rpc("authority", "call_local")
+func player_register(id : int, username : String) -> void:
+    var lobby_index : int = players.size()
+    if free_lobby_indexs.size() != 0:
+        lobby_index = free_lobby_indexs.pop_front()
+
+    players[id] = PlayerData.new(id, lobby_index, username)
+
+    #send the entire list for clients that join later
+    for player_id in players:
+        update_client_players.rpc(player_id, players[player_id].name)
+
+@rpc("authority", "call_local")
+func player_unregister(id) -> void:
+    free_lobby_indexs.append(players[id].lobby_index)
+    players.erase(id)
+    player_registered.emit()
+
+@rpc("authority", "call_local")
+func players_clear() -> void:
+    players.clear()
+    player_registered.emit()
+
+#endregion