local function centerText(text)
local x,y = term.getSize()
local x2,y2 = term.getCursorPos()
term.setCursorPos(math.ceil((x / 2) - (text:len() / 2)), y2)
print(text)
end

while true do
  term.clear()
  centerText("Direction (wasd):")
  direction = read()
  if direction == "d" then
    centerText("Ready")
    rednet.send(698,"on")
    os.sleep(120)
    rednet.send(696,"off")
  elseif direction == "w" then
    centerText("Ready")
    os.sleep(120)
  elseif direction == "a"
    rednet.send(699,"on")
    rednet.send(700,"on")
    centerText("Ready")
    os.sleep(120)
    rednet.send(699,"off")
    rednet.send(700,"off")
  end
end