Bubble Fortune

Bubble Fortune

- Bubble  Fortune -
-------------------
O   o   .     . . .
     O o O O   . O
. . O .   O   o O .
 O .   O     . . .
o o o O o . . o   o
     O .     o   .
  O o O . O O . O
 o . O   O o O .
o o o o o .   o o O
 o   O . O O O o O
-------------------

bubble.lua

#!/usr/bin/lua
local width = 19
local height = 10

local set = " .oO"
local str = ""

local hypens = string.rep("-", width)
print "- Bubble  Fortune -"
print(hypens)
math.randomseed(os.time())
for y = 1,height do
    while #str < width do
        local i = math.random(#set)
        str = str .. set:sub(i,i) .. " "
    end
    local line = str:sub(1, width)
    print(line)
    str = str:sub(width+1)
end
print(hypens)