Untitled

using CitizenFX.Core;
using CitizenFX.Core.Native;
using System;
using System.Collections.Generic;

namespace EulenMenuExample
{
    public class EulenMenu : BaseScript
    {
        private bool menuOpen = false;
        private int currentOption = 0;
        private List<string> options = new List<string> { "Opzione 1", "Opzione 2", "Opzione 3", "Opzione 4" };

        public EulenMenu()
        {
            EventHandlers["onClientResourceStart"] += new Action<string>(OnClientResourceStart);
        }

        private void OnClientResourceStart(string resourceName)
        {
            if (API.GetCurrentResourceName() != resourceName) return;

            API.RegisterCommand("eulenmenu", new Action<int, List<object>, string>((source, args, raw) =>
            {
                menuOpen = !menuOpen;
                API.SetNuiFocus(menuOpen, menuOpen);
                API.SendNuiMessage(@"{
                    ""type"": ""set_controls_state"",
                    ""state"": """ + (menuOpen ? "true" : "false") + @"""
                }");
            }), false);

            EventHandlers["__cfx_nui:keydown"] += new Action<dynamic>(OnKeyDown);
        }

        private void OnKeyDown(dynamic data)
        {
            switch (data.KeyCode)
            {
                case 245: // Up
                    currentOption--;
                    if (currentOption < 0) currentOption = options.Count - 1;
                    API.SendNuiMessage(@"{
                        ""type"": ""update_option_index"",
                        ""index"": """ + currentOption + @"""
                    }");
                    break;
                case 244: // Down
                    currentOption++;
                    if (currentOption >= options.Count) currentOption = 0;
                    API.SendNuiMessage(@"{
                        ""type"": ""update_option_index"",
                        ""index"": """ + currentOption + @"""
                    }");
                    break;
                case 246: // Select
                    // Logic for option selected goes here
                    break;
                case 177: // Back
                    menuOpen = false;
                    API.SetNuiFocus(menuOpen, menuOpen);
                    API.SendNuiMessage(@"{
                        ""type"": ""set_controls_state"",
                        ""state"": """ + (menuOpen ? "true" : "false") + @"""
                    }");
                    break;
            }
        }
    }
}