gpu_test.lua

local component = require("component")
local event = require("event")
local gpu = component.gpu;

local w, h = gpu.getResolution()
local running = false

local function main()
  for offset = 5, 1000, 5 do
    for i = 0, w do
      for j = 0, h do
        gpu.setForeground((i * j) * offset) --dunno if that will work
        gpu.set(i, j, tostring((i * j) * offset))
      end
    end

    gpu.setForeground(0xFFFFFF);
    gpu.set(1, 1, "Mash CTRL+C to exit")

    local event = event.pull()

    if event == "interrupted" then
      break
    end

    os.sleep(1)
  end
  gpu.setForeground(0xFFFFFF)
end

main()