Auto Blinkers

using GTA;
using GTA.Math;
using GTA.Native;
using System;
using System.IO;
using System.Windows.Forms;



public class AutoBlinkers : Script
{
    string ScriptName = "AutoBlinkers";
    string ScriptVer = "1.0";
    int reftime = Game.GameTime;
    int interval = 3000;
    public AutoBlinkers()
    {
        Tick += OnTick;
    }

    void OnTick(object sender, EventArgs e)
    {
        Vehicle veh = Game.Player.Character.CurrentVehicle;
        if (CanWeUse(veh))
        {
            float angle = (float)Math.Round(veh.SteeringAngle,0);
            Vector3 pos = veh.Position;

            if (Function.Call<bool>(Hash.IS_POINT_ON_ROAD, pos.X, pos.Y, pos.Z, veh) && angle != 0  && veh.Speed>-1 && veh.Speed<10)
            {
                reftime = Game.GameTime;
                if (angle > 0)
                {
                    veh.RightIndicatorLightOn = false;
                    veh.LeftIndicatorLightOn = true;
                }
                else
                {
                    veh.RightIndicatorLightOn = true;
                    veh.LeftIndicatorLightOn = false;
                }
            }

            if (Game.GameTime > reftime + interval)
            {
                reftime = Game.GameTime;
                veh.LeftIndicatorLightOn = false;
                veh.RightIndicatorLightOn = false;
            }
        }
        else
        {
            veh = Game.Player.LastVehicle;
            if (CanWeUse(veh))
            {
                Vector3 pos = veh.Position;
                if (Function.Call<bool>(Hash.IS_POINT_ON_ROAD, pos.X, pos.Y, pos.Z, veh))
                {
                    veh.RightIndicatorLightOn = true;
                    veh.LeftIndicatorLightOn = true;
                }
            }
        }
    }

    bool CanWeUse(Entity entity)
    {
        return entity != null && entity.Exists();
    }
}