modulescript not working with self

[granite halo]

i just started using OOP and recently the "self" is confusing, is self the first argument passed from the function?? or is self the first variable in the table . i looked in the devforum but it didnt make sense to me. any help is appreciated

[jovial sequoia]

** You are now Level 1! **

[eternal ledge]

the self is the object

imagine an car

the self is the car

[granite halo]

I see, how do you use self for other functions? I tried it for printsystem() it just printed (“can’t add arthemical value”)

Even though I have gas and rocks set to 20 and 10

[eternal ledge]

you are setting the printSystem wrong

[granite halo]

what’s wrong with it?

[eternal ledge]

you have to put in the module function self:PrintSystem

not NewGenTable

[granite halo]

o

[eternal ledge]

because u want to see the gas and rocks of an object

so the function is child of the self(object)

not the class(NewgenTable)

[granite halo]

so we call the table inside the constructor?

hm

[eternal ledge]

no

and other thing

u need to set the object to a variable

like this

[granite halo]

Hold ima try that

[eternal ledge]

var = Class:new()

and call var:PrintSystem

the : is for reference the object automatic

[granite halo]

Ok I fixed that above

[eternal ledge]

an recomendation for you is to learn type annotation

it helps a lot in OOP

[granite halo]

Alright ill look into that

still saying some error

[eternal ledge]

u need to put in the construtor

[jovial sequoia]

** You are now Level 3! **

[granite halo]

O

[eternal ledge]

its not that

[granite halo]

Print system?

[eternal ledge]

wait a sec

ill show u

[granite halo]

Alright thanks

it’s confusing

[jovial sequoia]

** You are now Level 2! **

[eternal ledge]

NewGenTable = {}
NewGenTable.__index = NewGenTable

-- Construtor
function NewGenTable.new(gas, rocks, shards)
    local self = setmetatable({}, NewGenTable)
    self.gas = gas
    self.rocks = rocks
    self.shards = shards

    function self:PrintSystem()
        print(self.gas + self.rocks)
    end

    return self
end


return NewGenTable

done

and in the other script u do:

[granite halo]

AH

I didn’t return self

and used constructor instead instead of self

[eternal ledge]

randomTable = require(LOCATION)

local obj = randomTable.new(10,10,10)
obj:PrintSystem()

any questions now?

[granite halo]

honestly I’ve been using constructor then the function for everything

just what I saw on the dev forum

I appreciate you showing me self function

[eternal ledge]

u need to see various contents like youtube, discord, dev forum, API

i can recomend u a OOP starters video if u want

[granite halo]

Sure

[eternal ledge]

https://www.youtube.com/playlist?list=PLKyxobzt8D-KZhjswHvqr0G7u2BJgqFIh

[granite halo]

I have one question for self:printsystem, why don’t we use NewGenTable:PrintSystem instead?

[granite halo]

Ima save that

[eternal ledge]

its old but for starters works well

[granite halo]

That’s a good playlist

[eternal ledge]

wait a sec

i gonna draw a quick ex

[granite halo]

alright

[eternal ledge]

i didnt explaned to well

[granite halo]

its ok is the car the self?

[eternal ledge]

honestly i cant explain too much because i dont know how can explain in a easy way

[eternal ledge]

correct

[granite halo]

so

self isnt defined

untilyou define it

blueprint holds data

aka constructor

[eternal ledge]

correct

https://www.youtube.com/watch?v=56Iz1FMo6DE&list=PLKyxobzt8D-KZhjswHvqr0G7u2BJgqFIh&index=4

[granite halo]

Im kinda getting it

[eternal ledge]

its english basicly

self represents the object

[granite halo]

can self be anything

[eternal ledge]

yes

(i think)

[granite halo]

Ok

you can you use self in other functions because its connected to the constructor?

example

construcot has car properties

[eternal ledge]

in the constructor holds the functions and variables, self in this case represent the table holding the things

[granite halo]

and you create a function for the car like speed:() , but you need the car properties so you have to use self to pass the data onto it

ah

ok

[eternal ledge]

in lua OOP is just tables

and metatables

[granite halo]

yep

Alr thanks for helping me

ill def watch those videos soon

and annotions

[eternal ledge]

for annotations it just helps writing

like the autocomplete

[granite halo]

hm

[jovial sequoia]

** You are now Level 3! **

[eternal ledge]

if u need help with anything ping me and i will try to respond

[granite halo]

alright

thanks for everything

[eternal ledge]

have a good day

[granite halo]

you too its currently 12pm lol

cya

[eternal ledge]

5am in the country i live

[granite halo]

Hey bro its starting to make much more sense to me

self is fairly easy to use

I think my problem was calling the functions from the scripts

self is pretty much what you set it to, its just a way to pass information onto another function without redefining mutiple times.

[eternal ledge]

Yeah it is just logic