ToggleVehicleEngine

stock ToggleVehicleEngine(vehicleid)
{
    new
        engine,
        lights,
        alarm,
        doors,
        bonnet,
        boot,
        objective;

    GetVehicleParamsEx(vehicleid, engine, lights, alarm, doors, bonnet, boot, objective);

    if(engine)
    {
        SetVehicleParamsEx(vehicleid, 0, 0, alarm, doors, bonnet, boot, objective);
        return 0;
    }
    else
    {
        SetVehicleParamsEx(vehicleid, 1, 1, alarm, doors, bonnet, boot, objective);
        return 1;
    }
}