Система перехода между сценами. И главное меню. Типа.

scripts/SceneManager.cs

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+using Godot;
+using System;
+using System.Linq;
+using Godot.Collections;
+
+public partial class SceneManager : Node
+{
+	[Export] public Dictionary<string, string> Scenes;
+
+	public string CurrentScene;
+
+	public void SwitchScene(string sceneName)
+	{
+		GetTree().ChangeSceneToFile(Scenes[sceneName]);
+	}
+
+	public override void _Ready()
+	{
+		var scenePath = (string)ProjectSettings.GetSetting("application/run/main_scene");
+		CurrentScene = Scenes.First(pair => pair.Value == scenePath).Key;
+	}
+}