sbox-public/game/addons/menu/Code/Modals/Settings/GameSettings.razor

@using Sandbox.UI;
@using Sandbox;
@namespace MenuProject.Settings
@inherits Panel
@page "/settings/game"

<root class="page-inner">

    <div class="page-content">
        
        <h2>Localization</h2>

        <row class="with-gaps">
            <cell class="glass with-padding is-label">
                Game Language
            </cell>
			<DropDown class="glass with-grow" Value:bind=@Language Options=@LanguageOptions></DropDown>
        </row>

        <h2>Game Preferences</h2>

        <row class="with-gaps">
            <cell class="glass with-padding is-label">
                Field Of View
            </cell>
            <SliderControl Min="@(45)" Max="@(120)" Value:bind=@FieldOfView />

            <TextEntry Numeric=@true class="glass" Value:bind=@FieldOfView style="min-width: 50px;"></TextEntry>
        </row>
        
	</div>

    <SettingsFooter OnCancel=@OnCancel OnRestore=@OnRestore OnApply=@OnApply></SettingsFooter>

</root>


@code
{
    public string Language { get; set; }
    public float FieldOfView { get; set; }

    List<Option> _languageOptions;
    List<Option> LanguageOptions
    {
        get
        {
            if (_languageOptions == null)
            {
                _languageOptions = new();

                foreach (var lang in Sandbox.Localization.Languages.List)
                {
                    _languageOptions.Add(new Option(lang.Title, lang.Abbreviation));
                }
            }
            return _languageOptions;
        }
    }

    protected override void OnAfterTreeRender(bool firstTime)
    {
        base.OnAfterTreeRender(firstTime);

        if (!firstTime)
            return;

        OnCancel();
    }

    public void OnRestore()
    {
        MenuUtility.RenderSettings.DefaultFOV = 60;
        ConsoleSystem.Run("language", "en");
    }

    public void OnCancel()
    {
        FieldOfView = MenuUtility.RenderSettings.DefaultFOV;
        Language = Sandbox.Language.Current.Abbreviation;
    }

    public void OnApply()
    {
        ConsoleSystem.Run("language", Language);

        MenuUtility.RenderSettings.DefaultFOV = (int)(FieldOfView.Clamp( 45, 120 ));
    }
}