Random string?

[aerhx]

Hi, i'm fairly new to the love framework/lua.

I'm trying to do something like this (PHP):

Code: Select all

<?php 
$x = rand().'_this';
?>

How do I go about:
1. Making a random string
2. And attaching that random string to "_this"

[tentus]

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local max = 32767  -- php's randmax on windows
x = math.random(0, max) .. "_this"

Note that at some earlier point (at least in pre-0.8.0 versions of love) you need to use math.randomseed() for the result to be properly random-seeming.

[Petunien]

Just of curiosity, is it also possible to create a random string that contains letters?

How would that go?

[Nixola]

You create a table called 'alphabet' (guess what you'll put in it) and do something like "var = math.random(26)", then search for the var index in alphabet

[Petunien]

I started trying three minutes ago and use the same method you said...
A little challenge for me.

[Robin]

Or:

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string.char(math.random(65, 90)) --uppercase
string.char(math.random(97, 122)) --lowercase

[Jasoco]

I created this function for generating UUID's for my game for no reason.

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function createUUID()
    local uuid = ""
    local chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
    for i = 1, 30 do
        local l = math.random(1, #chars)
        uuid = uuid .. string.sub(chars, l, l)
    end
    return uuid
end

You can place whatever characters you want in that string. It basically just chooses a character at random from it. But I guess you could also use string.char() which I didn't know about until just this moment. Either way would work fine I guess. Mine would only return letters and numbers unless modified.