Drone Control GUI V.1

local component = require("component")
local gpu = component.gpu
gpu.setResolution(80,25)
local gui = require("gui")
local event = require("event")
local modem = component.modem

gui.checkVersion(2,5)

local prgName = "noname"
local version = "v1.0"

-- Begin: Callbacks
local function button_0_callback(guiID, buttonID)
   -- Your code here --
modem.open(2412)
modem.broadcast(2412, "drone=component.proxy(component.list('drone')())")
modem.broadcast(2412, "drone.move(1, 0, 0)")
end

local function button_1_callback(guiID, buttonID)
   -- Your code here
modem.open(2412)
modem.broadcast(2412, "drone=component.proxy(component.list('drone')())")
modem.broadcast(2412, "drone.move(-1, 0, 0)")
end

local function button_2_callback(guiID, buttonID)
   -- Your code here
modem.open(2412)
modem.broadcast(2412, "drone=component.proxy(component.list('drone')())")
modem.broadcast(2412, "drone.move(0, 1, 0)")
end

local function button_3_callback(guiID, buttonID)
   -- Your code here
modem.open(2412)
modem.broadcast(2412, "drone=component.proxy(component.list('drone')())")
modem.broadcast(2412, "drone.move(0, -1, 0)")
end

local function button_4_callback(guiID, buttonID)
   -- Your code here
modem.open(2412)
modem.broadcast(2412, "drone=component.proxy(component.list('drone')())")
modem.broadcast(2412, "drone.move(0, 0, -1)")
end

local function button_5_callback(guiID, buttonID)
   -- Your code here
modem.open(2412)
modem.broadcast(2412, "drone=component.proxy(component.list('drone')())")
modem.broadcast(2412, "drone.move(0, 0, 1)")
end

local function exitButtonCallback(guiID, id)
   local result = gui.getYesNo("", "Do you really want to exit?", "")
   if result == true then
      gui.exit()
   end
   gui.displayGui(mainGui)
   refresh()
end
-- End: Callbacks

-- Begin: Menu definitions
mainGui = gui.newGui(1, 2, 79, 23, true)
Forward = gui.newButton(mainGui, 34, 6, "Forward", button_0_callback)
Backward = gui.newButton(mainGui, 34, 16, "Backward", button_1_callback)
Up = gui.newButton(mainGui, 37, 9, "Up", button_2_callback)
Down = gui.newButton(mainGui, 36, 13, "Down", button_3_callback)
Left = gui.newButton(mainGui, 24, 11, "Left", button_4_callback)
Right = gui.newButton(mainGui, 46, 11, "Right", button_5_callback)
exitButton = gui.newButton(mainGui, 73, 23, "exit", exitButtonCallback)
-- End: Menu definitions

gui.clearScreen()
gui.setTop("Drone Control")
gui.setBottom("Made with Visual Gui v0.1a and Gui library v2.5")

-- Main loop
while true do
   gui.runGui(mainGui)
end

while true do
  local cmd=io.read()
  if not cmd then return end
  modem.broadcast(2412, cmd)
  print(select(6, event.pull(5, "modem_message")))
end