Pong/Scripts/Managers/UI/BaseMenu.cs

using Godot;

namespace Pong.Scripts.Managers.UI;

public partial class BaseMenu : VBoxContainer
{
	private SettingsManager _settingsManager;
	
	public override void _EnterTree()
	{
		_settingsManager = GetNode<SettingsManager>("/root/SettingsManager");
		_settingsManager.SettingsChanged += AdaptUiToGameResolution;
		GetTree().Root.SizeChanged += AdaptUiToGameResolution;
		AdaptUiToGameResolution();
		
		EnterTree();
	}

	public override void _ExitTree()
	{
		GetTree().Root.SizeChanged -= AdaptUiToGameResolution;
		_settingsManager.SettingsChanged -= AdaptUiToGameResolution;
		ExitTree();
	}

	protected virtual void EnterTree()
	{
	}

	protected virtual void ExitTree()
	{
	}

	/// <summary>
	/// change the size of the UI container to the current resolution of the game.
	/// </summary>
	protected void AdaptUiToGameResolution()
	{
		var scale = _settingsManager.SettingsData.Scale;
		Size = (Vector2)DisplayServer.WindowGetSize() / scale;
		Scale = new Vector2(scale, scale);
	}
}