rng

local dx, dy = 3, 3
local scr_x, scr_y = term.getSize()

local range = {1,20}

local dice = paintutils.loadImage("dice.nfp")
local tc = term.current().setVisible
function render(x,y,number)
  tc(false)
  for a = 1, scr_y do
    term.setCursorPos(1,a)
    if a > scr_y/2 then
      term.setBackgroundColor(colors.brown)
    else
      term.setBackgroundColor(colors.yellow)
    end
    term.clearLine()
  end
  paintutils.drawImage(dice,x-dx,y-(dy-1))
  term.setCursorPos(x,y)
  term.setTextColor(colors.black)
  term.setBackgroundColor(colors.lightBlue)
  term.write(tostring(number))
  tc(true)
end

--os.queueEvent("key", keys.space)
render(scr_x/2,-6,"")

while true do
  local evt, key = os.pullEvent("key")
  if key == keys.space then
    for a = -2, (scr_y/2)+1 do
      render(scr_x/2,a,math.random(range[1],range[2]))
      sleep(0)
    end
  end
end