Door Lock Client by Totoro

-- Door lock client by Totoro
-- 15.07.2014
port = 27

local event = require('event')
local serial = require('serialization')
local sides = require('sides')
local com = require('component')
local modem = com.modem
local gpu = com.gpu
local redstone = com.redstone

gpu.setResolution(14,7)
width, height = gpu.getResolution()

function square(color)
  gpu.fill(1, 1, width, height, ' ')
  gpu.setBackground(color)
  gpu.fill(3, 2, width-4, height-2, ' ')
  gpu.setBackground(0x000000)
  gpu.set(6,4, "Push")
end
function openLock()
  redstone.setOutput(sides.down, 15)
  os.sleep(1)
  redstone.setOutput(sides.down, 0)
end

square(0x005000)
modem.open(port)

while true do
  name, address, a, b, c, username, e = event.pull()
  if name == "key_down" then
    break
  elseif name == "touch" then
    modem.broadcast(port, serial.serialize({"lock", username}))
  elseif name == "modem_message" then
    if username == "lock_open" then
      openLock()
    elseif username == "lock_deny" then
      square(0xFF0000)
      os.sleep(0.8)
      square(0x005000)
    end
  else --print(name)
  end
end

gpu.setResolution(80,24)
gpu.fill(1, 1, 80, 24, ' ')
modem.close(port)