Modules

[frosty rivet]

hi

a dictionary is a table with keys inside of it that return needed values

that is a dictionary in most basic terms

now image this

you have a game with an inventory system, each player has their own items. so lets say we have a player and their inventory looks like this

local inventory = {
    ["Gold Bars"] = 4,
    ["Healing Potions"] = 1,
    ["Cups of Coffee"] = 3000
}

we can clearly tell that they have 4 gold bars, 1 poition of healing and 3k cups of coffee

(dont ask i took this code from roblox api documentation)

now lets say that we want our code to know how many gold bars the player has

imagine each value in a dictionary as a door and the key as well a key

behind each door is our data that we want to use

and the key allows us to access said door

if we want to access lets say door "Gold Bars" we just use the key "Gold Bars"

and we can do that with the square brackets

all you need to do is just the name of the dictionary. so in this case inventory, square brackers and inside the brackets the name of the key

so the final product that we get is inventory["Gold Bars"]

and if we compile it we can see it prints 4

local inventory = {
    ["Gold Bars"] = 4,
    ["Healing Potions"] = 1,
    ["Cups of Coffee"] = 3000
}
print(inventory["Gold Bars"])

[frosty rivet]

;compile

[coral basalt]

Program Output

4

omrezkeypie#0000 | lua | lua-5.4.3 | wandbox.org

[frosty rivet]

thats it

thats all dictionaries are

just arrays that have a key assigned to each value

array = table btw

just so u wont get confused when i say array

if u need any further help with dictionaries i dont mind helping

[jagged anvil]

[frosty rivet]

blud is blacklisted from marketplace

[jagged anvil]

hey!

[jagged anvil]

no idea

i just got q dm

and i was banned

💀

ok

[frosty rivet]

hi

alright so

this function takes a string as its parameter

and the table.find searches for the index location in the dictionary of the inputed parameter

and if it finds something

it knows it can use the inputed parameter to return a value

hmm i can quickly check if u want

i dont see table.match in the docs

i think its something that got deprecated

oh you got confused with string.match

also just a heads up writing Dictionary.KeyName is the same as writing Dictionary[KeyName]

[frosty rivet]

it does the exact same thing

so pretty much all this function does is it checks if the provided string aka parameter actually exists in the DIfficultySetting table and if it does exist it sets Selected to the needed difficulty that is stored in the dictionary

thats it

it specifies between all difficulties because you input it the difficulty key name

so if i were to input "Easy"

it would return me the value of easy

which is 0.5

oh

you are suppose to input a STRING

you cant just write Easy

you need to do "Easy"

the inputed parameter has to be equal to the key

yes

and if u test it out everything should work

just take your time and relax

wdym

the parameter?

default is nil

if you write local function thing() it has no parameters

so theres nothing being inputed into the function

it is

both are functions

do you know the basics of parameters

define them for me

close

Parameters in simple terms are just data that can be inputed into a function to be used in its functionaltiy

in your case the data that you input is a string

[frosty rivet]

that is used to get the value in the dictionary

because you wrote Difficulty as its parameter?

which tells the code theres something that needs to be inputed

when you write

local function doThing()
     print("thing!")
end

here there is no inputted parameter which means the code shouldnt expect an input which means if you write

doThing("HI!!!")

the "HI!!!" will be inputted

but it wont be used

because you didnt define the parameters name in the functions brackets

however if you do

local function doThing(TextToPrint)
      print(TextToPrint)
end

if you write

doThing("HI!!!")

the code will use the parameter

and its inputted value