BetterX mods + KubeJS help | latcord | Page 1

fathom canyon May 10, 2025, 11:50 PM

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Hello, im by no means an experienced coder. Ive recently taken the decision to make a Vanilla+ like modpack for me and my friends on a private server. And one thing ive come across is that i want/need to change some +armor values for 2 mods "BetterEnd & "BetterNether" and ive tried almost everything i feel like. I frist tried doing a resourcepack, then datapack and lastly KuebJS
(since i dont know coding, i took help using AI [which i have seen in the rules, it isnt allowed]) therefore i will not post the code here.
But do you guys think something like this is possible using KubeJS? if so how do i get started to solve such a "simple" issue? I have been on this annoying issue for 4 days straight now. Ive even contacted BetterX mod "admin" and he said "ask in KuebJS discord why it isnt working"

Thanks in advande

wheat pewterBOT May 10, 2025, 11:50 PM

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Once your ticket has been resolved, please close it with </ticket close:1054771505520717835> command!

west nova May 11, 2025, 6:53 AM

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It's actually pretty straight-forward. Take a look here and try to understand it:
https://kubejs.com/wiki/tutorials/item-modification

You will need the correct item IDs for the armor items you want to change. You can see them by turning on advanced tooltips by pressing F3+H in-game.

KubeJS Wiki

Item Modification

Modifying existing items

fathom canyon May 11, 2025, 3:38 PM

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west nova It's actually pretty straight-forward. Take a look here and try to understand it...

yeah i got the correct item id etc but still wouldnt work so i just didnt know what was causing the error. Can i perhaps show you the code i tried running and see if you can perhaps spot the issue 🙏

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going on that link you sent me. Does this mean you cant change values atm?

west nova May 11, 2025, 5:16 PM

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fathom canyon going on that link you sent me. Does this mean you cant change values atm?

Huh, don't know. Let's see 🙂

west nova May 11, 2025, 5:17 PM

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fathom canyon yeah i got the correct item id etc but still wouldnt work so i just didnt know w...

Just put it here, yes.

fathom canyon May 11, 2025, 5:52 PM

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west nova Just put it here, yes.

thanks, here it is

// priority: 0

ItemEvents.modification(event => {
  // Flaming Ruby (BetterNether) — knockback resistance: 1.0
  const flamingRuby = [
    'betternether:flaming_ruby_helmet',
    'betternether:flaming_ruby_chestplate',
    'betternether:flaming_ruby_leggings',
    'betternether:flaming_ruby_boots'
  ]

  flamingRuby.forEach(id => {
    event.modify(id, item => {
      item.attributes.remove('minecraft:knockback_resistance')
      item.attributes.add('minecraft:knockback_resistance', 1.0, 'addition')
    })
  })

  // Aeternium (BetterEnd) — custom armor values
  event.modify('betterend:aeternium_helmet', item => {
    item.attributes.remove('minecraft:armor')
    item.attributes.add('minecraft:armor', 3.5, 'addition')
  })

  event.modify('betterend:aeternium_chestplate', item => {
    item.attributes.remove('minecraft:armor')
    item.attributes.add('minecraft:armor', 8.0, 'addition')
  })

  event.modify('betterend:aeternium_leggings', item => {
    item.attributes.remove('minecraft:armor')
    item.attributes.add('minecraft:armor', 6.0, 'addition')
  })

  event.modify('betterend:aeternium_boots', item => {
    item.attributes.remove('minecraft:armor')
    item.attributes.add('minecraft:armor', 3.5, 'addition')
  })

  // Enderium (Majrusz's) — knockback resistance: 2.0
  const enderium = [
    'majruszsdifficulty:enderium_helmet',
    'majruszsdifficulty:enderium_chestplate',
    'majruszsdifficulty:enderium_leggings',
    'majruszsdifficulty:enderium_boots'
  ]

  enderium.forEach(id => {
    event.modify(id, item => {
      item.attributes.remove('minecraft:knockback_resistance')
      item.attributes.add('minecraft:knockback_resistance', 2.0, 'addition')
    })
  })
})

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another thing to note.
my script runs when it's just console.log(...), but fails silently when ItemEvents.modification(...) orServerEvents.itemAttributeModifiers(...) is used.

west nova May 11, 2025, 5:56 PM

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Try running /kubejs errors in game

fathom canyon May 11, 2025, 5:56 PM

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alright sec

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the only error it gives me is from another code script, which has nothing to do with this. It gives 0 errors for this one

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this was a script i have not yet removed, it was to change some recipes

west nova May 11, 2025, 5:58 PM

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What is the file called, that script you posted is in?

fathom canyon May 11, 2025, 5:59 PM

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fathom canyon thanks, here it is ```javascript // priority: 0 ItemEvents.modification(event ...

this file?

west nova May 11, 2025, 5:59 PM

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Jep

fathom canyon May 11, 2025, 5:59 PM

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armor_modifications.js

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i tested it with aconsole.log(...) and went into latest.log file to make sure it loads

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which it does

west nova May 11, 2025, 6:00 PM

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It probably can run the log even if the main script fails. Don't know. What KubeJS tells you there in the error message is that the file "armor_modifications.js" has a problem right there in line 3.

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And then it tells you why: ItemEvents belong in the Startup folder, not the Server folder.

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That's step 1 😉

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So it actually tells you the first major problem with your script.

fathom canyon May 11, 2025, 6:02 PM

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ah ok, so its supposed to be in client_scripts instead of server_scripts?

west nova May 11, 2025, 6:02 PM

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west nova It's actually pretty straight-forward. Take a look here and try to understand it...

The link here has a little column on the right. In green it tells you in which folder to run which script type, too 🙂

west nova May 11, 2025, 6:02 PM

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fathom canyon ah ok, so its supposed to be in client_scripts instead of server_scripts?

Yes 🙂

fathom canyon May 11, 2025, 6:02 PM

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ok let me try that. Thanks!

west nova May 11, 2025, 6:02 PM

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Wait

fathom canyon May 11, 2025, 6:02 PM

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sure

west nova May 11, 2025, 6:03 PM

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I mean, try it - but it will prob not work 😄

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Try it and then explain again what you want it to do, please

fathom canyon May 11, 2025, 6:03 PM

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sure sec

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yeah, did /reload, and it came out saying there was no errors now. But still item values are wrong(default). So what i want the script to do is change some values of the armor. Like aeternium has a total of +24, i want to change the values so its +21 instead (in total) and then some other changes on 2 other gear sets. You want info on that too?

west nova May 11, 2025, 6:06 PM

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Sorry, I'm not too familiar with betternether armor - can you explain what you want with one piece of armor but more precise?
Let's do the first one, the ruby helmet thing.

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We will do one item together, and then you can probably do the rest alone 🙂

fathom canyon May 11, 2025, 6:11 PM

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sure thing i will exaplin it precicely for you!

Flaming ruby set: Base knockback resistance is 3 (on all pieces) i want to change that valuer to 1 (on all pieces)

Aeternium set: I want to change base armor values to a lower number. This is default (current) - Helmet +4, Chest +9, Leggings +7, Boots +4.

I want to change to the(current, default) values in correct order (helmet to boots) +3.5, +8, +6, +3.5.

Enderium set: Base knockback resistance is 1 (on all pieces) i want to change that value to 2 (on all pieces)

west nova May 11, 2025, 6:12 PM

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fathom canyon ah ok, so its supposed to be in client_scripts instead of server_scripts?

Quick correction here: you put it in Startup Scripts. Just as it says there.

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For changes in Startup Scripts you usually have to restart the game, though.

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Let's try this:

ItemEvents.modification(event => {
  event.modify('betternether:flaming_ruby_helmet', item => {
    item.armorKnockbackResistance = 0.1
  })
 })

fathom canyon May 11, 2025, 6:14 PM

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sure thing, give me a second! 🙂

west nova May 11, 2025, 6:14 PM

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I'm not sure if armorKnockbackResistance get's called correctly and I am not sure if 0.1 is the proper value for setting it to 1.

fathom canyon May 11, 2025, 6:14 PM

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west nova I'm not sure if armorKnockbackResistance get's called correctly and I am not sur...

from what i have read, it is

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but im not certain

west nova May 11, 2025, 6:15 PM

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We'll find out 😄

fathom canyon May 11, 2025, 6:17 PM

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the thing is, are values in tooltip supposed to change aswell? what if values actually are chaning but just not the tooltip.

Here are the results btw

west nova May 11, 2025, 6:20 PM

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fathom canyon the thing is, are values in tooltip supposed to change aswell? what if values ac...

They should be changing, too as we try to modify it during registry - which is the earliest part.

fathom canyon May 11, 2025, 6:20 PM

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ah true

west nova May 11, 2025, 6:20 PM

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Okay, do /kubejs errors again

fathom canyon May 11, 2025, 6:21 PM

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/kubejs errors startup ?

west nova May 11, 2025, 6:21 PM

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jup

fathom canyon May 11, 2025, 6:21 PM

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without a third word, it wont let me do that command.

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no errors were found

west nova May 11, 2025, 6:22 PM

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Well that's good 😄

fathom canyon May 11, 2025, 6:22 PM

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haha indeed!

west nova May 11, 2025, 6:24 PM

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Hm, armorKnockbackResistance is listed here, too: https://kubejs.com/wiki/ref/MutableItem

KubeJS Wiki

MutableItem

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So it should work.

fathom canyon May 11, 2025, 6:25 PM

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hmmm

west nova May 11, 2025, 6:25 PM

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Are you running this script only?

fathom canyon May 11, 2025, 6:26 PM

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no

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some crafting recipe changes

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for the gear sets

west nova May 11, 2025, 6:26 PM

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ah, but they work, i guess?

fathom canyon May 11, 2025, 6:26 PM

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yeah

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i used datapacks to remove the old recipes, and i used kubejs to add new ones

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or the other way around i dont remember

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because one of them just wouldnt work on kubejs

west nova May 11, 2025, 6:28 PM

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Also interesting 😄

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let's check if other methods work for armor...

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ItemEvents.modification(event => {
  event.modify('betternether:flaming_ruby_helmet', item => {
    item.armorKnockbackResistance = 0.1
    item.armorProtection = 20
  })
 })

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Try this instead. We will set the helmet's armor to 20 to see if it changes.

fathom canyon May 11, 2025, 6:29 PM

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sure

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i just replace the old code with this and restart the game?

west nova May 11, 2025, 6:29 PM

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Jep

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Not just the world but full game

fathom canyon May 11, 2025, 6:30 PM

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yy

west nova May 11, 2025, 6:30 PM

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If you are playing Singleplayer. If on a server, restart the server

fathom canyon May 11, 2025, 6:33 PM

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https://tenor.com/view/long-tears-gif-11087877242190144149

Tenor

west nova May 11, 2025, 6:34 PM

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Hm.

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Press F3+H please

fathom canyon May 11, 2025, 6:34 PM

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sec

west nova May 11, 2025, 6:34 PM

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To turn on additional tooltips

fathom canyon May 11, 2025, 6:34 PM

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west nova May 11, 2025, 6:40 PM

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Alright, i double-checked it and everything seems correct.

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There are some comments here, that say that this methods might not work on some modded items.

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Let's try the other one

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ItemEvents.modification(event => {
  event.modify('majruszsdifficulty:enderium_helmet', item => {
    item.armorKnockbackResistance = 0.2
  })
 })

fathom canyon May 11, 2025, 6:41 PM

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sure thing, give me a second! 🙂

fathom canyon May 11, 2025, 6:43 PM

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west nova There are some comments here, that say that this methods might not work on some ...

what would be the "next" step to get a workaround then?

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starting game btw

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it just doesnt want to override the base stats... :/

west nova May 11, 2025, 6:45 PM

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fathom canyon what would be the "next" step to get a workaround then?

Helmet, no?

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We just do the helmet atm

fathom canyon May 11, 2025, 6:46 PM

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yea mb

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sec

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😮

west nova May 11, 2025, 6:46 PM

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Good, so we know the method works, but betternether has something going on there.

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I just took a quick look into betternethers code on github.

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The Flaming Ruby stuff does not seem to be it's own item but a variant of the nether armor set.

fathom canyon May 11, 2025, 6:47 PM

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wtf

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what about ruby set then? because there is a "stage" before 'flaming'

west nova May 11, 2025, 6:49 PM

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Same, i guess.

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Ah, found it.

fathom canyon May 11, 2025, 6:49 PM

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west nova Same, i guess.

and aeternium?

west nova May 11, 2025, 6:49 PM

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They add the nether armor regularly as one would expect. Then they add all those different materials on top and write the armor ratings etc there. Great.

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And I don't know how to touch that.

fathom canyon May 11, 2025, 6:50 PM

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west nova And I don't know how to touch that.

D:

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is it the same with aeternium? or how does that look?

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its from BetterEnd

west nova May 11, 2025, 6:52 PM

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Maybe someone will figure out how to reach ArmorMaterial in there: https://github.com/quiqueck/BetterNether/blob/1.20/src/main/java/org/betterx/betternether/items/materials/BNArmorMaterial.java

GitHub

BetterNether/src/main/java/org/betterx/betternether/items/materials...

BetterNether Mod. Contribute to quiqueck/BetterNether development by creating an account on GitHub.

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Let's see for BetterEnd.

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Background trivia here: BetterEnd and BetterNether both are from the same developers and use the same code often with BCLib.

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So, chances are, we will run into the same block.

fathom canyon May 11, 2025, 6:53 PM

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west nova So, chances are, we will run into the same block.

yeah thats what im thining. But just incase 🙏

west nova May 11, 2025, 6:54 PM

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Wanna try do the code yourself?

west nova May 11, 2025, 6:55 PM

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west nova ``` ItemEvents.modification(event => { event.modify('majruszsdifficulty:enderi...

We know that this works.

fathom canyon May 11, 2025, 6:56 PM

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ItemEvents.modification(event => {
event.modify('betterend:aeternium_helmet', item => {
item.armorProtection = 3.5
})
})

west nova May 11, 2025, 6:57 PM

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That should work 🙂

fathom canyon May 11, 2025, 6:57 PM

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when adding a new line, how do i do that?

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like on top of what we did

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ItemEvents.modification(event => {
event.modify('majruszsdifficulty:enderium_helmet', item => {
item.armorKnockbackResistance = 0.2
})
})
ItemEvents.modification(event => {
event.modify('betterend:aeternium_helmet', item => {
item.armorProtection = 3.5
})
})

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like this?

west nova May 11, 2025, 6:58 PM

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Ah, no

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The first line "ItemEvents.modification(event => {" is the start of everything else you want to do.

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Then, you do the modifications one by one.

event.modify('majruszsdifficulty:enderium_helmet', item => {
    item.armorKnockbackResistance = 0.2
  })

This is one modifiation

fathom canyon May 11, 2025, 6:59 PM

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ah ok, yeah i wanted to do a new line / section to keep it sorted, one are with aeternium changes, one area with enderium etc

west nova May 11, 2025, 7:00 PM

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Ah, yeah you could. But it would just be like telling someone: Take the Hammer. Put the nail there. Now put down the hammer. Now pick up the Hammer again. Do put a nail there.

fathom canyon May 11, 2025, 7:01 PM

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i see

west nova May 11, 2025, 7:01 PM

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Could spare the poor gal the hussle of putting the tool down and picking it up again. Same goes for Minecraft. This shit runs so slow modded anyway,.

fathom canyon May 11, 2025, 7:01 PM

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ItemEvents.modification(event => {
event.modify('majruszsdifficulty:enderium_helmet', item => {
item.armorKnockbackResistance = 0.2
event.modify('betterend:aeternium_helmet', item => {
item.armorProtection = 3.5
})
})

so it would be like this?

west nova May 11, 2025, 7:01 PM

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I mean, in your case, it really does not matter. But stuff stacks up and suddendly you got 10 seconds more loading time.

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Almost

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ItemEvents.modification(event => {
event.modify('majruszsdifficulty:enderium_helmet', item => {
item.armorKnockbackResistance = 0.2
})
event.modify('betterend:aeternium_helmet', item => {
item.armorProtection = 3.5
})
})

fathom canyon May 11, 2025, 7:02 PM

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ah ok

west nova May 11, 2025, 7:02 PM

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The }) need to close every statement

fathom canyon May 11, 2025, 7:02 PM

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gotcha

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the last }) at the bottom of the code, why is there a space first? and not like the "})" where you closed the satement?

west nova May 11, 2025, 7:06 PM

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Hm, that's mostly coder style to help reading the code better.

fathom canyon May 11, 2025, 7:06 PM

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west nova ItemEvents.modification(event => { event.modify('majruszsdifficulty:enderium_h...

😦

west nova May 11, 2025, 7:06 PM

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You do indentations for every statement block or item together.

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Works?

fathom canyon May 11, 2025, 7:06 PM

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no

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its still 4

west nova May 11, 2025, 7:06 PM

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Ah.

fathom canyon May 11, 2025, 7:06 PM

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supposed to be 3.5 :/

west nova May 11, 2025, 7:06 PM

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Yeah, thought so.

fathom canyon May 11, 2025, 7:07 PM

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well you did manage to help me with one of the sets at least, which i am super greatfull for! ❤️

west nova May 11, 2025, 7:08 PM

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Your welcome. I'm sorry, that the other two will probably not work.

fathom canyon May 11, 2025, 7:09 PM

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i do wonder something do. you said that "i need to figure out/find someone" that knows how to work ArmorMaterial. Just so i know what to ask/look for, what exactly is " ArmorMaterial" and how do i ask such a question when comparing it to normal armor to explain what im looking for? if that makes sense

west nova May 11, 2025, 7:10 PM

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Depending on how important it is to you:

Try CraftTweaker
Fork BetterNether and BetterEnd on Github and change the code there 😄

fathom canyon May 11, 2025, 7:10 PM

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i tried crafttweaker, didnt work on fabric apparently for the specific thing i was doing, only neoforge was supported

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what does fork mean sorry? im a complete noob to all this D:

west nova May 11, 2025, 7:11 PM

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fathom canyon i do wonder something do. you said that "i need to figure out/find someone" that...

Hm, for KubeJS it would mean asking for a Plugin for KubeJS that can actually fiddle with those parameters buried in BetterNether/BetterEnd.

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But I'm not sure if this is just a thing for them or if ArmorMaterials is actually a Minecraft thing, too. But i guess, if it was, KubeJS would be able to tinker with it.

fathom canyon May 11, 2025, 7:12 PM

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maybe im stupid, but isnt the values of all items in a mod written somewhere in the .jar? why cant i just go in there and modify the code or such?

fathom canyon May 11, 2025, 7:12 PM

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west nova But I'm not sure if this is just a thing for them or if ArmorMaterials is actual...

true

west nova May 11, 2025, 7:12 PM

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fathom canyon i tried crafttweaker, didnt work on fabric apparently for the specific thing i w...

Aren't you just lucky. 😄

fathom canyon May 11, 2025, 7:13 PM

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i been on this for like 5 days now, lmao, i just want to get this fixed so me and my friends can play D:

west nova May 11, 2025, 7:13 PM

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fathom canyon maybe im stupid, but isnt the values of all items in a mod written somewhere in ...

That is basically forking, but a bit more complicated. In Jars you will find the Data and Assets in plain, editable files. The code of the mod is compiled and not directly editable.

fathom canyon May 11, 2025, 7:13 PM

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west nova That is basically forking, but a bit more complicated. In Jars you will find the...

ah ok i see

west nova May 11, 2025, 7:14 PM

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But: the acutal Java code is on github. Check the link. Forking means, you take the code there and make a copy for yourself. It is a standardized process called "forking" on github and many other coding platforms.

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And when you got a local copy, you change the values you want and re-compile it. Giving you your own Jar file of the mod.

fathom canyon May 11, 2025, 7:15 PM

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i see, so the actual best solution for all of this would to just fork the mods, so no extra "third party" mods are needed?

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-like CraftTweaker for an example

west nova May 11, 2025, 7:15 PM

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fathom canyon i see, so the actual best solution for all of this would to just fork the mods, ...

Yes.

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But this will take you through a few days of learning tbh.

fathom canyon May 11, 2025, 7:16 PM

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yeah, i dont think i will be doing that sadly, i dont even know where to start ngl

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all of this just for some simple values 🫠 😩

west nova May 11, 2025, 7:16 PM

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The easy part is changing the mod. The hard part is setting up your stuff to compile it again 😄

fathom canyon May 11, 2025, 7:17 PM

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west nova The easy part is changing the mod. The hard part is setting up your stuff to com...

makes sense

west nova May 11, 2025, 7:17 PM

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You could ask around for someone to recompile it for you.

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I don't have the time now, but for someone more pro than me it would not be too much work.

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You are playing 1.21?

fathom canyon May 11, 2025, 7:18 PM

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just so you are aware, i dont evne know what recompile means, im so "ignorant" of all this coding language. I wouldnt even know when the "mod" would be ready for recompiling ngl hahah

fathom canyon May 11, 2025, 7:18 PM

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west nova You are playing 1.21?

1.20.1

fathom canyon May 11, 2025, 7:18 PM

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fathom canyon just so you are aware, i dont evne know what recompile means, im so "ignorant" o...

i have taken a course to start learning coding tho, but sadly not javascript nor java xD

west nova May 11, 2025, 7:20 PM

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I have to leave in a sec, but here are some basic steps:

Get a github account.
Fork both mods (google how)
Change here for BetterNether: https://github.com/quiqueck/BetterNether/blob/1.20/src/main/java/org/betterx/betternether/items/materials/BNArmorMaterial.java
Change here for BetterEnd: https://github.com/quiqueck/BetterEnd/blob/1.20/src/main/java/org/betterx/betterend/item/material/EndArmorMaterial.java
Ask someone to fork your fork and compile it. They will know.

GitHub

BetterNether/src/main/java/org/betterx/betternether/items/materials...

BetterNether Mod. Contribute to quiqueck/BetterNether development by creating an account on GitHub.

GitHub

BetterEnd/src/main/java/org/betterx/betterend/item/material/EndArmo...

Better End MC Mod. Contribute to quiqueck/BetterEnd development by creating an account on GitHub.

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If you are interested in learning MC modding and Java (or programming) watch Kaupenjoe in YT. He's great.

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Good luck! 🙂

#BetterX mods + KubeJS help