How to make a table from a server script accessible in a local script

[fiery jetty]

I'm still trying to figure out a way to add parts with a specific tag to a raycast exclusion list. There is a part that is cloned upon a player joining in a script within ServerScriptService, which is given the tag of "Cursor" since it will follow the player's mouse to act as a cursor visualizer. However, the local script that calculates the player's cursor position in a 3D space will still collide with the cursor part, which causes it to fly towards the camera. I need to find a way to get the tag of the object into the local script, so I can input it into the raycast filter and have it be excluded.

(The issue in question)

it works from the server script but not the local script

[harsh shadow]

iirc, the issue with the cursor going to your camera is because you didn’t exclude the workspace.CurrentCamera in your local script

[fiery jetty]

no, the issue is the cursor object

because it's not being excluded by the raycast, the raycast hits it and causes it to update its position onto itself

though someone else mentioned that i could just add the cloned part to a table and see if i could just exclude the contents within the table as a whole

only issue is that the local script is unable to access the table within the server script

I figured i could use a remote event for it but im not sure how to transfer a table via a remote event

How to make a table from a server script accessible in a local script

[harsh shadow]

You could pass the table as an argument for the remote event no?

[fiery jetty]

yeah i suspected that. only issue is what i was trying to do was yielding no results

basically, table name is passed as parameter

but then trying to do anything with that in the local script wouldnt give me anything

[harsh shadow]

wdym? You mean like there is no arguments being passed?

[fiery jetty]

lemme try passing the table into the local script via a remote event again cuz theres a good chance i was doing it wrong

i likely did this wrong

but i tried to make a variable out of the table passed from the server script, and then looping and printing to make sure it was actually getting the contents

but the loop yielded nothing as v is apparently nil

[harsh shadow]

try using local getCursorTable

outside of the function

actually the for loop has to be inside the event

because there is no variable called getCursorTable when you call the for loop

[harsh shadow]

when you are using fire client, you need to have the player recipient as the first argument

then your additional arguments after

[fiery jetty]

now its saying it wants the player argument to be an object

[harsh shadow]

yeah so probably put that line into the event when you called the server

and pass the player argument that you received

[fiery jetty]

ok, so no issue on the client's end. now its the server

unable to cast value to object

the thing is, cursorTable is a table (line 4)

so idk why its not passing through correctly

[harsh shadow]

so you need the player

ohhh

that makes it more simpler

that should work

[fiery jetty]

yup, it worked!! but....

[harsh shadow]

the event might have not been loaded on the client

so you have to use waitforchild

for the event

[fiery jetty]

so....where would i put that exactly?

can i make the RaycastExcludeMousePart wait for child??

[harsh shadow]

yes you wait for the event to load using WaitForChild

something like game.ReplicatedStorage:WaitForChild( event name here)...

[fiery jetty]

yeah im clearly just doing this wrong lol

[harsh shadow]

oh you have to wait for the RaycastExcludeMousePart

[fiery jetty]

i hate that i basically have to have my hand held when writing this stuff out cuz i keep somehow screwing up basic instructions

[harsh shadow]

you have to close the parenthesis

[uncut pewter]

** You are now Level 4! **

[harsh shadow]

i think it would be best if you were to keep scripting to watch tutorials or do mini side projects

to help with understanding

[fiery jetty]

i have been doing that but my issues are so like weirdly specific

cuz i will search for like 20 minutes on google or roblox studio forum posts before making one here myself

[harsh shadow]

WaitForChild(" {string here} ")

you just need to close the string with a parenthesis

[fiery jetty]

oh

well, there's no more syntax errors, but the thing still won't print

the console should output "iDrizzyB's mousePart," as that exact same code nested within the server script works as intended and outputs that

[harsh shadow]

can you print something when the client event is fired then let me know if it works?

[fiery jetty]

lemme try

good news, it did!

[harsh shadow]

ah you commented the variable but it doesnt matter

you can use the cursorTable variable instead of the getCursorTable in the loop

[vague cove]

why do you need this on the server exactly?

[fiery jetty]

i commented because i knew it wouldn't print anything, and as i suspected, nothing happened once again

[fiery jetty]

player joins, object is cloned into workspace on server so it can be seen by all players

[vague cove]

what are you trying to do

i'm guessing you're trying to move this mousepart to follow the player's mouse and show for all players?

[fiery jetty]

its all said here

[uncut pewter]

** You are now Level 7! **

[fiery jetty]

correct

[harsh shadow]

instead of just (getCursorTable) try pairs(cursorTable) in the for loop

[vague cove]

where are you setting position? i see a bit of this render() function that looks like it has mouse ray stuff in it, can you show this function?

[harsh shadow]

pairs(cursorTable)

[vague cove]

i see

[fiery jetty]

OHHH i cannot read

[vague cove]

so really what the problem is you are having a hard time getting a reference to this object on the client for mouse ray

[fiery jetty]

darn, still nothing....

[fiery jetty]

i just wanna have the mousePart excluded from the raycast so the issue i showed above stops happening

[fiery jetty]

this

[fiery jetty]

but since it is a cloned object, i figured i'd add it to table, and have the contents of the table be raycast-excluded

[vague cove]

the thing about doing this in PlayerAdded is that the part is being cloned at the same time as you are firing it to the client, it is unlikely for the part to exist on the client yet (thus it will be nil) and also unlikely for that event to be connected on the client when you fire it, so it's a 2-fold problem there. personally, the simplest way I would do it is to use an ObjectValue set to point to this cursor, or on the client you can workspace:WaitForChild(LocalPlayer.Name .. "'s mousePart") for example

[fiery jetty]

alright, i'll try that

alright, so the wait for child thing did yield a result on the client's end

but, what's this ObjectValue thing? never heard of it before

[vague cove]

its like an intvalue/stringvalue like you would use in leaderstats, except it holds an instance value, kind-of like a pointer

[fiery jetty]

i'll make sure to read the documentation on pointers then, since i've never heard of that either☠️

[vague cove]

you can set the value on the server and this will replicate to client when the client receives the instance

[fiery jetty]

ahh

[vague cove]

a pointer is exactly what it says on the tin - it points to something

[fiery jetty]

so...is it like the tagging thing that comes with collectionService??

[vague cove]

kind-of

it doesn't alter the instance in any way

objectvalues are good if you need a reference to some arbitrary instance, like your mouse pointer for example

[fiery jetty]

does it bypass the whole local script thing? can it be accessed from multiple scripts?

[vague cove]

coz you can set the value on the server and if not objectvalue.Value then objectvalue:GetPropertyChangedSignal("Value"):Wait() end myinstance=objectvalue.Value

[vague cove]

yes can be accessed from anywhere as long as you have the objectvalue instance first

[fiery jetty]

ohhhh

thats awesome

[vague cove]

just one thing i would change with this and that is to make the mousepart a model and set its streaming mode to persistentperplayer and add the intended player to it so it is guaranteed to always exist for that player, if it were up to me i'd probably also set network ownership of the part to that player too so the player can move the part directly for themselves, it's not like you're verifying if the client's ray actually hit anything or is a valid ray result

exploiter could send any position they wanted for their mouse ray and server says yup okay

[fiery jetty]

oh yikes, alright then

[vague cove]

but that's all minor details, main thing is the persistentperplayer mousepart model streamingmode https://create.roblox.com/docs/reference/engine/enums/ModelStreamingMode#PersistentPerPlayer

[fiery jetty]

how do i change it from a part to a model?

[vague cove]

part.parent=model

or, well, you're cloning from something so just make what you're cloning a model

then use model:PivotTo(cframe) instead of part.CFrame=...etc

but that's just what i would do 🤷

[fiery jetty]

after i inputted this as a variable and added it to the exclusion list, the bug was fixed, so big thanks. but i will continue to look into the streaming mode and model stuff in order to make the cursor exploiter-proof

[fiery jetty]

gotcha

[vague cove]

the streaming mode has nothing to do with exploit protection. it's to handle the case for when the player is very far from their cursor part and it streams out so it doesn't exist on the client anymore (normal roblox behavior), model streamingmode is how you change that behavior for specific parts

kind-of annoying how you have to detour through a model to get to it but ehh it's not that bad

[fiery jetty]

ah ok

[fiery jetty]

wait how would do you this

i got the object value working fine

but how do i do the pivotto() thing

[vague cove]

https://create.roblox.com/docs/reference/engine/classes/Model#PivotTo

because models dont have a position like parts do, they instead inherit their position from their primary part, so you have to use a different method to move it

or cframe the primary part

[fiery jetty]

i had a cframe set up for when the mousePart was a solitary part. should i just revert to that

cuz this isnt working

wait why does the mouse need to be in a model anyways?

[vague cove]

this is why

[fiery jetty]

ohhh models have access to streamingmode?

[vague cove]

yea can only set it on a model

[fiery jetty]

ohhh.. yeah that is kind-of annoying that you need to detour through a model lol

okie dokie

[fiery jetty]

so, how would i set up a primary part then?

[vague cove]

model.PrimaryPart=part cmon bruh https://create.roblox.com/docs/reference/engine/classes/Model#PrimaryPart

[fiery jetty]

yeah i could be googling some of these, u right....

[fiery jetty]

the model seems to still be unanchored despite the primary part being anchored

but i cant anchor a model

nvm i see issue

i checked while running, turns out the primary part is in fact not anchored