onoff.lua

local unicode = require('unicode')
local event = require('event')
local term = require('term')
local shell=require("shell")
local fs = require('filesystem')
local component = require('component')
local gpu = component.gpu
local net = component.modem
local running = true

-- Colors
local backcolor = 0x000000
local forecolor = 0xFFFFFF

local buttonbg = 0x444444
local buttonselectedbg = 0x626262
local buttontext = 0xC5C8C6

local selection = 0xF0544C

local infocolor = 0x0066FF
local errorcolor = 0xFF0000


-- Constants
local myname = "XDjackieXD"

-- Gui
local oldwidth, oldheight = gpu.getResolution()
local oldbgcolor = gpu.getBackground()
local oldfgcolor = gpu.getForeground()
local width = 10
local height = 20
local buttons = {}

gpu.setResolution(width, height)
gpu.setForeground(forecolor)
gpu.setBackground(backcolor)

local function addButton(x, y, wi, he, name, callback, colorbg, colortext)
  buttons[#buttons + 1] = {x, y, wi, he, name, callback, colorbg, colortext}
end

local function drawButton(x, y, wi, he, text, buttonbgcolor, buttontextcolor)
  gpu.setBackground(buttonbgcolor)
  gpu.setForeground(buttontextcolor)

  gpu.fill(x, y, wi, he, " ")
  gpu.set(x+(wi/2)-(string.len(text)/2) , y+(he/2), text)

  gpu.setBackground(backcolor)
  gpu.setForeground(forecolor)
end

local function drawScreen()
  term.clear()
  for i=1, #buttons do
    drawButton(buttons[i][1], buttons[i][2], buttons[i][3], buttons[i][4], buttons[i][5], buttons[i][7], buttons[i][8])
  end
end

local function clickCallback(x, y, player)
  for i=1, #buttons do
    if x >= buttons[i][1] and x < buttons[i][1]+buttons[i][3] then
      if y >= buttons[i][2] and y < buttons[i][2]+buttons[i][4] then
        buttons[i][6](buttons[i], player)
      end
    end
  end
end



-- Callbacks
local function touchCallback(name, address, x, y, button, player)
  clickCallback(x, y, player)
end

local function onCallback(button, player)
  net.broadcast(123, "on")
  drawButton(button[1], button[2], button[3], button[4], button[5], 0x9D0000, button[8])
  os.sleep(0.5)
  drawScreen()
end

local function offCallback(button, player)
  net.broadcast(123, "off")
  drawButton(button[1], button[2], button[3], button[4], button[5], 0x9D0000, button[8])
  os.sleep(0.5)
  drawScreen()
end


-- Main Code

addButton(1, 1, 10, 9, "On", onCallback, buttonbg, buttontext)
addButton(1, 12, 10, 9, "Off", offCallback, buttonbg, buttontext)

net.open(123)

event.listen("touch", touchCallback)
drawScreen()

while running do
  os.sleep(10)
end