startup

local function open_door()
  rs.setOutput('left', true)
end
local function close_door()
  rs.setOutput('left', false)
end

  local function sensor_door()

    local white_list = {'Seryoga', 'NEO', 'Ruslan1911', 'Desectus', 'MorfSD', 'AlexVBG', 'Nedfreetoplay'}
    local sensor = peripheral.wrap('top')
    local opening = true

    close_door()

    while true do
      people_table = sensor.getPlayers()
      q_people = #people_table
      opening = false

      term.clear()
      term.setCursorPos(1, 1)
      print("Quantity players: ", q_people)
      for k, v in pairs(people_table) do
        people = people_table[k]
        write(people['name']..' ')
      end



      for k, v in pairs(people_table) do
        people = v
        people_info = sensor.getPlayerByUUID(people["uuid"])

        for k, v in pairs(white_list) do
          if people_info["name"] == white_list[k] then
            distance = 0
            for k, v in pairs(people_info["position"]) do
              distance = v * v + distance
            end
            distance = math.sqrt(distance)
            if distance < 3 then
              print()
              print("Open")

              open_door()

              opening = ture
              break
            end
          end
        end

        if opening == ture then
          break
        end
      end

      if opening == false then
        print()
        print("Close")

        close_door()
      end

      sleep(0.1)
    end
  end

while true do
  pcall(sensor_door)

  close_door()

  sleep(5)
end