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I've been using math.random for my whole game as I find it easy to use, but there are concerns math.random returns the same numbers sometimes, whilst Random.new does not. Is it worth changing my math.random to Random.new in my scripts? I want to have the most random results I can get.

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I'd personally use Random.new if it was to be choosing teams so It wouldn't choose the same team the second time and math.random if you want pure randomness. wilsonsilva007 339 — 6mo

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There is no longer a difference.

Roblox changed math.random to use a Random object under the hood. But the Random class still has its own benefits such as having a "local" seed.

For example if you did `math.randomseed(seed)`

this would be a global change; all scripts are affected.

Where as with the Random class you can do `Random.new(seed)`

and that seed will not affect other scripts.

Roblox's Random and Lua's math.random are `pseudo random number generators`

where `pseudo`

means `fake`

so pseudo random literally means `fake random`

.

A random number generator that is considered "true random" can be found at random.org and is considered true random because it uses `atmospheric noise`

, and everything on this "true random number generator" can be found on that website.

Use whichever you want. There should not be a difference in quality of the "randomness".

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both are equally good at giving random numbers; although if u asked me i prefer random.new as u get to specify which seed u want to use, giving that extra customizeability(tho technically it wont make a difference cus all seeds are equally random)

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math.randomseed(seed) sets the seed for math.random what are you talking about incapaxx 3479 — 6mo

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lol rip TheluaBanana 868 — 6mo

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Currently, math.random(num1,num2) returns a whole number, there might be cases where you want a float. You can use math.random() but it returns a number between 0 to 1. This is where Random can prove to be useful

local RandomNum = Random.new() -- you can provide a seed if you want local Number = RandomNum:NextNumber(num1,num2) -- NextNumber returns a float between num1 and num2 local Number2 = RandomNum:NextInteger(num1,num2) -- NextInteger returns a integer between num1 and num2 print(Number)

Random has a very odd thing about it, you can clone it and it will preserve it's current state.

local RandomNum = Random.new(tick()) local RandomNum2 = RandomNum:Clone() print(RandomNum:NextInteger(1,10),Random2:NextInteger(1,10)) -- they will print the same value

It all depends on what you are trying to accomplish. If it's for general uses like choosing a random element in an array, then you should stick with math.random. However, if you're looking for precise numbers then it's better if you use Random:NextNumber

I hope this helps.

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You can definitely get a percentage with math.random(). math.random(min, max)/max, and you can make a float >= 1 with num + math.random() or num - math.random() and also why can't you use array[randomObj:NextInteger(min, max)] incapaxx 3479 — 6mo

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You can use array[randomObj:NextInteger(min,max)] , i never said you can't , but it's the same as math.random(min,max) kisty1 1 — 6mo