feat: 开始实现多人游戏

README.md

@@ -51,3 +51,5 @@ game/
 你的开发应当遵循 Godot 引擎提供的[最佳实践](https://docs.godotengine.org/zh-cn/4.x/tutorials/best_practices/)及[GDScript 编写风格指南](https://docs.godotengine.org/zh-cn/4.x/tutorials/scripting/gdscript/gdscript_styleguide.html)。但下面提到的除外：
 
 除 `autoload` 目录下的单例脚本使用大驼峰式命名，其余脚本均应使用小蛇形式命令。所有节点均应使用大驼峰式命名。
+
+除连接了信号或 HTTPRequest、MultiplayerAPI 的函数外，任何函数都不应该以下划线（`_`）开头。

scripts/autoload/MultiGame.gd

@@ -1,13 +1,25 @@
 extends Node
 
-# 基于 ENet 多人游戏
-
-func create_server(player_num: int) -> void:
 var peer = ENetMultiplayerPeer.new()
-	peer.create_server(8989, player_num)
+var players: Array
+var player_num
+
+func add_player(id: int):
+	if players.size() < player_num:
+		players.append(id)
+
+func create_server(playern: int) -> void:
+	player_num = playern
+	var error = peer.create_server(8989, playern)
+	if error != OK:
+		printerr(error)
+		return
 	multiplayer.multiplayer_peer = peer
+	multiplayer.peer_connected.connect(_on_peer_connected)
 
 func create_client(ip: String) -> void:
-	var peer = ENetMultiplayerPeer.new()
 	peer.create_client(ip, 8989)
 	multiplayer.multiplayer_peer = peer
+
+func _on_peer_connected(id: int):
+	pass

scripts/main_menu/create_game_ui.gd

@@ -1,6 +1,5 @@
 extends Node2D
 
-
 func _on_create_game_button_pressed() -> void:
 	var player_num = int($CreateGameEdit.text)
 	if 2 <= player_num and player_num <= 4: