cirnogodot/Scripts/MainMenu.cs

using Godot;
using System;

public partial class MainMenu : Control
{

	[Export]
	public string GameScene { get; set; }

	[Export]
	public string MainMenuScene { get; set; }
	
	[ExportGroup("Debug Menu")]
	[Export]
	public PackedScene DebugMenuTemplate { get; set; }
	
	[ExportGroup("Debug Menu")]
	[Export]
	public Control DebugMenuHolder { get; set; }
	
	// Called when the node enters the scene tree for the first time.
	public override void _Ready()
	{
	}

	// Called every frame. 'delta' is the elapsed time since the previous frame.
	public override void _Process(double delta)
	{
	}

	private void _on_start_button_pressed()
	{
		if (GameScene != null) {
			GlobalState.Instance.GotoScene(GameScene);
			//GetTree().ChangeSceneToFile(GameScene);
		}
	}

	private void _on_debug_button_pressed()
	{
		if (DebugMenuTemplate is null || DebugMenuHolder is null) return;
		DebugMenuHolder.Visible = true;
			
		var children = DebugMenuHolder.GetChildren();
		foreach (var child in children)
		{
			child.QueueFree();
		}
			
		var menu = DebugMenuTemplate.Instantiate<DebugMenu>();
			
		DebugMenuHolder.CallDeferred("add_child", menu);

		menu.DebugMenuClosed += () =>
		{
			DebugMenuHolder.Visible = false;
		};
	}

	private void _on_mainmenu_button_pressed()
	{
		if (MainMenuScene != null) {
			GlobalState.Instance.GotoScene(MainMenuScene);
			//GetTree().ChangeSceneToFile(MainMenuScene);
		}
	}

	private void _on_exit_button_pressed()
	{
		GetTree().Quit();
	}
}