holo-info.lua

local component = require("component")
local term = require("term")
local holo = component.hologram
local energyCell = component.tile_thermalexpansion_cell_resonant_name
local h = 0

holo.clear()
holo.setScale(0.33)
holo.setPaletteColor(1,0x00ff00)
holo.setPaletteColor(2,0xffff00)
holo.setPaletteColor(3,0xff0000)

local barSize = 16

function anzeigeBalken(t, w, ti, wi, h)
  local absHoehe = h * 32
  local color = 1
  if h < 0.2 then
    color = 3
  elseif h < 0.75 then
    color = 2
  end
  for i = t, t + ti do
    for j = w, w + wi do
      holo.fill(i, j, 0, absHoehe, color)
    end
  end
end

while true do
  local energy = energyCell.getEnergyStored()
  local maxEnergy = energyCell.getMaxEnergyStored()
  h = energy / maxEnergy
  print(h.." = "..energy.." / "..maxEnergy)
  anzeigeBalken(0, 0, barSize, 1 ,1)
  anzeigeBalken(0, 1, barSize, barSize - 1, h)
  os.sleep(2)
end