startup

monitor = peripheral.wrap("front")

monitor.setTextScale(3.5)

term.redirect(monitor)

term.clear()

local function centerText(text)
  local x,y = term.getSize()
  term.setCursorPos(7, math.floor(y / 2 + .5))
  write(text)
end

while true do
  term.setTextColor(colors.red)
  centerText("SNAKE")
  sleep(1)
  term.clear()
  term.setTextColor(colors.orange)
  centerText("SNAKE")
  sleep(1)
  term.clear()
  term.setTextColor(colors.yellow)
  centerText("SNAKE")
  sleep(1)
  term.clear()
  term.setTextColor(colors.lime)
  centerText("SNAKE")
  sleep(1)
  term.clear()
  term.setTextColor(colors.blue)
  centerText("SNAKE")
  sleep(1)
  term.clear()
  term.setTextColor(colors.purple)
  centerText("SNAKE")
  sleep(1)
  term.clear()
end