How can I make a particle function face the direction the player is looking?

[lucid thistle]

I am currently making an origin based on Elemer of the Briar from Elden Ring, however, because I need help with specifically a function, I felt I'd make a question post here rather than in the origins discord as it is somewhat unrelated. I am having issues with making a particle slash function face the players direction as in the correct orientation.

Version 1.20.1 Forge
Attached below is a video of the function not showing up as intended as well as the function itself, apologies if the quality is bad
https://files.catbox.moe/mi8imv.mp4

[sinful trench]

You need to use the executecommand with at and anchored eyes arguments

and maybe positioned ^ ^ ^2

[lucid thistle]

in the function itself?

[sinful trench]

Depends on what the function actually does and if you only need to have the particles located in front of player

If it's only for the particle, you would put that command in the function yes

[lucid thistle]

alrighty I'll try it out and see if it works

[dry kelp]

If you see yourself writing that line more than once. Create a function that calls your function after the execute chain

[lucid thistle]

could you elaborate on this, I'm not understanding

[lucid thistle]

anyway, it somewhat worked, the particles of the slash effect are locked in one orientation. Not sure why

[dry kelp]

Say I want a flame in front of the player:

From the player I run something like:
execute at @s anchored eyes positioned ^ ^ ^3 run function ns:flame

Then my flame function runs 3 blocks in front of the player as its origin.

[lucid thistle]

so, if I were to make a function for my slash (lets say its called eochaidslash) function, would it be like

execute at @s anchored eyes positioned ^ ^-0.4 ^2 run function eochaidslash

?

[dry kelp]

The flame function can then use coordinates relative to the executor again like:

# at the origin
particle flame ~ ~ ~ 0 0 0 0.05 0 force
# to the left of origin (as viewed from the player)
particle flame ^-3 ^ ^ 0 0 0 0.05 0 force
# above the origin
particle flame ~ ~3 ~ 0 0 0 0.05 0 force

[lucid thistle]

forgot to add the file name itself but just imagine its there

[dry kelp]

Yes, although ^-0.4 does mean below as viewed from the executor. Not -0.4 on the y axis

Local coordinates with a caret ^ take into account rotation and thus shift things a lot

[lucid thistle]

so if i wanted it -0.4 just on the y axis, would i use a tilde instead?

[dry kelp]

If I look straight west (negative X) and up the -0.4 will be west

You can't mix local and global coordinates

[lucid thistle]

good to know

[dry kelp]

You can however stack them

Much like how I did in my example

[lucid thistle]

hm

somewhat off topic but my particle function is around 290 lines long, would that make a difference in how i'd tackle this situation or would it be the same

function is all the particle command

[sinful trench]

I didn't watch the video before but now I understand better

So indeed you should use the execute command to call your function

execute at @s anchored eyes positioned ^ ^ ^x run function <particle>

The execute command will change the center of execution of the command and the rotation context

However since your particle commands use tilde notation, your overall effect won't be rotated

You need to use carret notation in your function to take the rotation into account

[lucid thistle]

when changing the tilde to carets, it ends up doing what I want it to, but just in the incorrect rotation, let me see if i can get a screenshot of it

[sinful trench]

Yes, that's why you need to use carret rotation in your particle function and not tilde

[lucid thistle]

I see, sorry for the misunderstanding

[dry kelp]

if you still get an unwanted rotation you might need to add another argument to the execute chain.

It helps if you try to provide a screenshot of what you want/expect vs what you get if you can make such a screenshot.

[lucid thistle]

Would a drawing of what I want suffice?

[dry kelp]

It can help yes

[lucid thistle]

not sure if this makes sense

https://files.catbox.moe/tlyy62.mp4

heres a video of the incorrect thing happening, what would I add to my execute function?

[sinful trench]

You need to change your particle ommands from using ~ ~ ~ coordinates to using ^ ^ ^ coordinates

~ won't keep rotation

[lucid thistle]

they are using ^

[sinful trench]

Please send a video with different execution angles

[lucid thistle]

I'll try

[lucid thistle]

https://files.catbox.moe/7md6mv.mp4

sorry it took a bit had to install a freecam mod

[rugged nova]

yea it looks like the animation is just rotated 90 degrees for some reason. Just add an offset using execute rotated ~90 0

aha but you're not using ~ ~ ~ in your particle function

you should use ^ ^ ^ instead

[lucid thistle]

https://tenor.com/view/red-red-emoji-angry-emoji-raised-fist-fist-gif-4695612956741787895

[rugged nova]

the image you've sent shows it differently
anyways just add a 90 deg offset as I've said before

[lucid thistle]

just did, seems to work perfectly as intended now lol

thanks so much!