HologramV2

local c = require("component")
local unicode = require("unicode")
local holo = c.hologram
local symbols = require("symbols")

if not holo then error("This program reqiures holoram projector.") end

local hologram = {}

---------------------------------------

local function clear()
  holo.clear()
end

function hologram.drawSymbol(x, y, z, symbol, color)
  for i = 1, #symbol do
    for j = 1, #symbol[i] do
      if symbol[i][j] == 1 then
        holo.set(x + j - 1, y - i + 1, z, color)
      end
    end
  end
end

function hologram.text(x, y, z, text, color)
  local length = unicode.len(text)
  local smeshenie = 0
  for i = 1, length do
    local sym = unicode.sub(text, i, i)
    hologram.drawSymbol(x + smeshenie, y, z, symbols[sym], color)
    smeshenie = smeshenie + 6
  end
end


---------------------------------------

local args = {...}
local text = "Open Computers"
if args[1] then
  text = tostring(args[1])
else
  print("No text specified, using default value 'Open Computers'.")
end
local text = text .. " "
local scale = tonumber(args[2]) or 1
local height = tonumber(args[3]) or 10

local date

holo.setScale(scale)

while true do
  holo.clear()
  hologram.text(1, height, 24, text:upper(), 2)
  os.sleep(1)
end

---------------------------------------

return hologram