drone3.lua

local drone = component.proxy(component.list("drone")())
local m=component.proxy(component.list("modem")())
m.open(2412)

local function sleep(timeout)
    checkArg(1, timeout, "number", "nil")
    local deadline = computer.uptime() + (timeout or 0)
    repeat
        computer.pullSignal(deadline - computer.uptime())
    until computer.uptime() >= deadline
end

local function receive()
  while true do
    drone.setLightColor(0x0000ff)
    sleep(5)
    drone.move(0, 23, 0)
    sleep(3)
    drone.move(-115, 0, 93)
    sleep(15)
    drone.move(0, -27, 0)
    sleep(3)
    drone.setLightColor(0x00ff2b)
    sleep(20)
    drone.move(0, 27, 0)
    sleep(3)
    drone.move(115, 0, -93)
    sleep(15)
    drone.move(0, -23, 0)
    sleep(25)
  end
end
while true do

  local result,reason=pcall(function()

    local result,reason=receive()

    if not result then return respond() end

    respond(result())

  end)

  if not result then respond() end

end