Stargate Brute Force

-- This program is designed to brute-force dial Stargate addresses in SGCraft.
-- Why? Stargates can be randomly generated as part of your world.
--   If someone doesn't map it, you have no way of knowing the gate even exists!
-- This program requires Computercraft, Open Peripherals, and SGCraft to run,
-- It also only brute forces one dimension at a time. Reset the variables for 6 and 7

-- Open two files.
--88 File 1 - List of successful dials.
--88 File 2 - 1 coordinate: most recent failed dial. Update this every time a dial fails.
--  This way, the program can save its place between server restarts.

-- Initialize Chevron variable; this is what will store the address you're testing.
--  When initializing, use the values from the failure file to start.
--  Include a /reset switch to reset to 0,0,0,0,0,<dimension 1>,<dimension 2>
-- 6, and 7 are the dimensional variables and do not change. Get these from your existing stargate.

-- Paste this line into /sgdev/sg_last_address to initialize from scratch:
-- {[1] = 1, [2] = 1, [3] = 1, [4] = 1, [5] = 14,[6] = 2,[7] = 1}
-- Also create /sgdev/valid_addresses

-- Initialize t_chevron with default values.
t_chevron = {
    [1] = 1,
    [2] = 1,
    [3] = 1,
    [4] = 1,
    [5] = 14,
    [6] = 2,
    [7] = 1
}

-- Initialize t_chevron with values from the backup file.
 chevronRead = fs.open("/sgdev/sg_last_address", "r")
 t_chevron = textutils.unserialize(chevronRead.readLine())
 chevronRead.close()

-- Initialize alphabet table
t_alpha = {
    [1] = "A",
    [2] =  "B",
    [3] =  "C",
    [4] =  "D",
    [5] =  "E",
    [6] =  "F",
    [7] =  "G",
    [8] =  "H",
    [9] =  "I",
    [10] =  "J",
    [11] =  "K",
    [12] =  "L",
    [13] =  "M",
    [14] =  "N",
    [15] =  "O",
    [16] =  "P",
    [17] =  "Q",
    [18] =  "R",
    [19] =  "S",
    [20] =  "T",
    [21] =  "U",
    [22] =  "V",
    [23] =  "W",
    [24] =  "X",
    [25] =  "Y",
    [26] =  "Z"
    }
-- First, mount the gate.
 sg = peripheral.wrap("back")

-- Brute Force
    -- Algorithm:
    -- Set t_chevron 1, 2, 3, 4, 5, in nested loops.
-- Chevron 5
while t_chevron[5] <= 26 do
 -- Chevron 4
 while t_chevron[4] <= 26 do
  -- Chevron 3
  while t_chevron[3] <= 26 do
   -- Chevron 2
   while t_chevron[2] <= 26 do
    -- Chevron 1
    while t_chevron[1] <= 26 do
    -- Address test
     local testAddy = t_alpha[t_chevron[1]]..t_alpha[t_chevron[2]]..t_alpha[t_chevron[3]]..t_alpha[t_chevron[4]]..t_alpha[t_chevron[5]]..t_alpha[t_chevron[6]]..t_alpha[t_chevron[7]]
     if sg.isValidAddress(testAddy) then
      local sgLib = io.open("/sgdev/valid_addresses", "a")
      sgLib:write("\n"..testAddy)
      sgLib:flush()
      sgLib:close()
     end
     print(testAddy)
     t_chevron[1] = t_chevron[1] + 1
     os.sleep(1)
    end -- t_chevron[1] end
    t_chevron[2] = t_chevron[2] + 1
    t_chevron[1] = 1
    os.sleep(0)
   end -- t_chevron[2] end
   t_chevron[3] = t_chevron[3] + 1
   t_chevron[2] = 1
   os.sleep(0)
  end -- t_chevron[3] end
  t_chevron[4] = t_chevron[4]  + 1
  t_chevron[3] = 1
   os.sleep(0)
   -- Write the contents of t_chevron to a file.
   print("Saving the table")
   chevronBackup = fs.open("/sgdev/sg_last_address", "w")
   chevronBackup.write(textutils.serialize(t_chevron))
   chevronBackup.close()
 end -- t_chevron[4] end
 t_chevron[5] = t_chevron[5] + 1
 t_chevron[4] = 1
 os.sleep(0)
end -- t_chevron[5] end

print("Brute force dial complete.")