rng

[modest spade]

how do people generally code rng for like gacha pulls?

[spring geyser]

math.random

and they prolly have a table of a bounch of random items

[modest spade]

thats what im doing but im thinking it cant be this simple

[snow portal]

Depends of how you want it to be

[fiery obsidian]

** You are now Level 26! **

[snow portal]

Percentage based or weighted

[modest spade]

im doing weighted rn is percentage based better? i see games use them more

[worn niche]

I found a weight util for Roblox that was super super accurate to the given percentage, so I'd use weights.

[modest spade]

can you elaborate? Im not sure what a weight util is

[worn niche]

I just mean I was looking for my own solution to a similar issue, and found a nice module script via Google that helped me implement weighted randomness so I could select from a set of items.

[modest spade]

is something along the lines of random num < cumilative weight loop

[worn niche]

I can't quite remeber it, but I can find it one day and share it with you

[modest spade]

alr bet

[limber gull]

For a weighted one I did smth like this

local table = {}

local function add(string, times)
for i = 1 times do
table.insert(table,string)
end
end
-- then add your things
add("rock",10)
add("dirt",5)

local function choose()
print(table[math.random(1,#table)])
end
choose()

[fiery obsidian]

** You are now Level 10! **

[limber gull]

Finally!

[worn niche]

Here you go. It's a bit old (so it has no types or anything) but it's a nice little O.O.P object that you can use, instructions on how to use are in the comment at the top

I tested it by having it choose many many times, and the percentages equaled the weight it was given, so I trust this.

I found this solution somewhere online at some point, but I used the code to make this class.

[trail cipher]

you can always use random.new

instead of math.random

it would just be Random.New():NextInteger(1,#table) instead of math.random(1,#table) i think

[modest spade]

moon tuner looks pretty nice ill trust that it works

[modest spade]

yeah ill do that if moon tuner doesnt work or outdated during testing

[worn niche]

Let me know if you have any issues, as I'd want to use it for myself.

I'll add types to it later this week.

[modest spade]

i have a question on why you put sort everywhere?

[worn niche]

I had to sort the weights so the :Choose function would work correctly

It basically checks each choice via a range that it builds off.

So keeping it sorted ensures it wouldn't be caught earlier by a higher weight choice

It's been a while since I looked at it more fully so it could be really stupid, I just know when I used it, it worked well lol

[modest spade]

nah I reread it over should work nicely.

@worn niche when u used this did u implement a pity system outside? or your rolls had no pity system

[fiery obsidian]

** You are now Level 8! **

[worn niche]

No I didn't, but you could reduce the weights of certain items by a pity factor and use the reset weights to default function when they get a good roll

[modest spade]

👍 yeah thank you I’ll implement that in another module script