Start/dig computer

rednet.open("right")
local func
local tArgs = {...}

function checkIn(fromID)
  rednet.send(fromID, tArgs[1])
end

function down()
  redstone.setOutput("bottom",true)
  sleep(1)
  redstone.setOutput("bottom",false)
end

function up()
  redstone.setOutput("top",true)
  sleep(1)
  redstone.setOutput("top",false)
end

function forward()
  redstone.setOutput("left",true)
  sleep(1)
  redstone.setOutput("left",false)
end

while true do
  local id,msg,dist = rednet.receive()
  func = loadstring(msg.."(...)")
  setfenv(func, getfenv())
  func(id)
  rednet.send(id,"Done")
end