Energy cube program

p = peripheral.wrap("left")
m = peripheral.find("monitor")
cent = "100"
function clear()
  m.clear()
  m.setCursorPos(1,1)
  term.setCursorPos(1,1)
  term.clear()
end

local x, y = m.getSize()
local w2, h2 = term.getSize()

while true do
  m.setBackgroundColor(colors.black)
  energy = p.getEnergy()
  max = p.getMaxEnergy()
  pourcent1 = energy/max
  pourcent2 = pourcent1*cent
  clear()
  m.write(energy.."/"..max)
  m.setCursorPos(1,3)
  m.write(pourcent2.."%")
  maxE = math.floor(max/2.5)
  curE = math.floor(energy/2.5)
  bar = math.floor(((curE/maxE)*(x-2))+0.5)
  stats = energy
  m.setCursorPos(2, y-2)
  m.setBackgroundColour(colors.gray)
  m.write(string.rep(" ",x-2))
  m.setCursorPos(2, y-2)
  m.setBackgroundColour(colors.green)
  m.write(string.rep(" ",bar))
  sleep(1)
end