startup

local p = peripheral.wrap("right")
local door = false

door = false
redstone.setOutput("left", true)
--i = 1

-- The following 3 functions need to be like this
-- to use the return feature. This is done to
-- refresh the information coming in.

function getInfo()
  info = p.getPlayers()
  return info
end

function getUsername()
  getInfo()
  return username
end

function getPos()
  pos = p.getPlayerByName(username).position
  return pos

end

function chkDoor()
  if door == true then
    redstone.setOutput("left", false)
  else
    redstone.setOutput("left", true)
  end
end

--Main Program. A lot of frustration went into this.
--I'm glad it works now.

function chkPlayer()
  if #p.getPlayers() ~= 0 then
 print("Somone is online! Who is it?")
    getInfo()
    getUsername()
    getPos()
 print(username.." is at coords: ")
 print(username.."is in the spot. Opening Door.")
      door = true
      redstone.setOutput("left", true)
    else
 print(username.."is not in the spot. Closing Door.")
      door = false
      redstone.setOutput("left", false)
    end
  end

while true do
sleep(2)
--print("Iteration: "..i)
--i = i + 1
chkDoor()
chkPlayer()
end