Random function

MysiaGames · March 2013

After use math.random() lua function, i take notice that result are repetitive or not cause a real random output. Consecutive randoms functions generate the same number 3 or 4 times, and that type of output is not possible. I use randomseed( os.timer() ), but the problem persist. This problem It's noticeable on iOS version. Maybe some of the problem could be due of os.timer() function returning seconds and calculations are so fast.

Is there any way to get a real random output?

fxone · March 2013

it's from my new, unpublished yet game:

 
math.randomseed( os.time() )
math.random(); math.random(); math.random()
levelSelf.dice1=math.random(1,6)

it works for me..

phongtt · March 2013

also see this thread: http://www.giderosmobile.com/forum/discussion/1071/did-you-notice-math.random-always-produce-equal-sequences-of-numbers-on-ios

techdojo · March 2013

If you google the topic there are plenty of resources about other psuedo random number generation (http://en.wikipedia.org/wiki/Random_number_generation). A lot of them tend to use bit-shifting and masking so it might be a good opportunity to learn how a plugin works

Scouser · March 2013

I use something similar to @fxone: This code is in my init.lua by default

-- Try to create a genuine random seed
local rand=math.random
math.randomseed(os.time())
local rnd = rand(5,10)
for i=1,rnd do rand() end

This works for me

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