Kyle@3: --[[ 
Kyle@3: Title: Suicide Kings
Kyle@3: Author: Brom
Kyle@3: Version: 0.1
Kyle@3: ]]
Kyle@3: 
Kyle@3: local function RandomCharacter()
Kyle@3:     
Kyle@3:     -- 0-9, A-Z, a-z = 10 + 26 + 16
Kyle@3:     local i = math.random(0,61)
Kyle@3:     
Kyle@3:     -- strip offset and ascii jump
Kyle@3:     if ( i >= 36 ) then
Kyle@3:         -- a:z
Kyle@3:         i = ( i - 36 ) + 97
Kyle@3:     elseif ( i >= 10 ) then
Kyle@3:         -- A:Z
Kyle@3:         i = ( i - 10 ) + 65
Kyle@3:     else
Kyle@3:         -- 0:9
Kyle@3:         i = ( i + 48 )
Kyle@3:     end
Kyle@3:     
Kyle@3:     return string.char( i )
Kyle@3: 
Kyle@3: end
Kyle@3: 
Kyle@3: function SuicideKings:UID( reserved )
Kyle@3:     
Kyle@3:     -- uid length
Kyle@3:     -- unique values = 62^4 = 14776336
Kyle@3:     local length = 4
Kyle@3:     
Kyle@3:     -- generate a random string
Kyle@3:     local s = RandomCharacter()
Kyle@3:     for i = 1, length-1 do
Kyle@3:         local c = RandomCharacter()
Kyle@3:         s = s .. c
Kyle@3:     end
Kyle@3:     
Kyle@3:     -- if taken, try again
Kyle@3:     while ( reserved[s] ~= nil ) do
Kyle@3:         s = SuicideKings:UID( reserved )
Kyle@3:     end
Kyle@3:     
Kyle@3:     return s
Kyle@3:     
Kyle@3: end