feat: 基本完成了主界面的制作

scripts/autoload/MultiGame.gd

@@ -0,0 +1,11 @@
+extends Node
+
+func create_server(player_num: int) -> void:
+	var peer = ENetMultiplayerPeer.new()
+	peer.create_server(8989, player_num)
+	multiplayer.multiplayer_peer = peer
+
+func create_client(ip: String) -> void:
+	var peer = ENetMultiplayerPeer.new()
+	peer.create_client(ip, 8989)
+	multiplayer.multiplayer_peer = peer

scripts/autoload/MultiGame.gd.uid

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+uid://dwbuaieufg51g

scripts/main_menu/create_game_ui.gd

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+extends Node2D
+
+
+func _on_create_game_button_pressed() -> void:
+	var player_num = int($CreateGameEdit.text)
+	if 2 <= player_num and player_num <= 4:
+		MultiGame.create_server(int(player_num))
+		$".".hide()
+	else:
+		$Warn.show()
+
+
+func _on_warn_button_pressed() -> void:
+	$Warn.hide()

scripts/main_menu/create_game_ui.gd.uid

@@ -0,0 +1 @@
+uid://dxekqwgtgqkg

scripts/main_menu/join_game_ui.gd

@@ -0,0 +1,7 @@
+extends Node2D
+
+
+func _on_join_game_button_pressed() -> void:
+	var ip: String = $JoinGameEdit.text
+	MultiGame.create_client(ip)
+	$".".hide()

scripts/main_menu/join_game_ui.gd.uid

@@ -0,0 +1 @@
+uid://cosrsj5i8s26q

scripts/main_menu/main_menu.gd

@@ -0,0 +1,8 @@
+extends Node2D
+
+
+func _on_join_game_pressed() -> void:
+	$JoinGameUI.show()
+
+func _on_start_game_pressed() -> void:
+	$CreateGameUI.show()

scripts/main_menu/main_menu.gd.uid

@@ -0,0 +1 @@
+uid://bnieej0tc51ei