Help making datapacks for a modded server.

[red mulch]

This is going to be a long explanation, so buckle up. You see, not too long ago I've made a Forge Minecraft server that is EXTREMELY unbalanced. Normally, I would be ok with something like this, but after playing in my own server with other people for a few days, I realized that you can beat the game extremely fast with some OP gear and tools. Because of this, I want to restart the server with some datapacks to balance it out more. So what exactly am I looking help with? Basically everything. I've followed guides from wikis, I've looked at YouTube videos explaining how to make datapacks (vanilla or modded), and I've even asked for help in other servers, but to no avail. As for what kinds of datapacks I'm making:

-A datapack to change the recipes of certain items so they are harder to get (to the point of being end game).
-A datapack to change the loot table of both mobs (add or remove items that they drop) AND chests (blacklist certain items from being obtained in chests, but can still be crafted like normal).
-A datapack that blacklists items from being obtained in any way (specifically creative mode only items).
-A datapack to blacklist items from a mod called Randomium.

There might be some other stuff that I need help with, and I apologize if this is alot to take in, but its something that im willing to learn and to make it work in my server. If you have any other questions regarding the modpack or something else, be sure to ask me. One more thing that I want to mention is that I'm also using utility mods to help me with this, specifically Item Obliterator and CraftTweaker.

[ebon turtle]

**Someone will come and help soon!**

💬 While you wait, take this time to provide more context and details. What are you trying to achieve overall - maybe there's an easier way to solve this problem

🙇 If it's been 30 minutes and you're still waiting for someone to help, hit the Summon Helpers button to call the official helpers here

✅ Once your question has been resolved (or you no longer need it), hit the Resolve Question button or run /resolve

[slate sonnet]

3 and 4 are not viable through datapacks

[red mulch]

A datapack of blacklisted items for randomium is possible, according to the mod page itself. The mod itself provides the necessary configs and tags in order to make a datapack that blacklists items from being dropped or duped by randomium: https://www.curseforge.com/minecraft/mc-mods/randomium-ore

As for #3, I probably don't have to make a datapack for it, since I have the Item Obliterator mod available for it.

I just need to learn HOW to use it

[humble moss]

why not

[shy tiger]

well, as for the blacklisting, you could literally just check if a player gets the item and delete it from their inventory instantly using inventory changed advancement lol

and the first 2 are surprisingly easy

[shy tiger]

im assuming that you can just change the loot table for that, so that should also be pretty fine to do

[shy tiger]

if you dont wanna do this itd def get more complicated but yeah

[red mulch]

The problem isnt HOW easy it is to make the datapack. The problem is actually me.

because i understand and learn stuff better visually

as in, by pictures

and keep in mind, i looked up various videos about datapack making, and i still dont understand much, other than having the correct item ids for it to work.

Also, Id prefer to make a datapack that blacklists items, since i already have a utility mod ready to start doing just that.

but again, im stupid

[slate sonnet]

thats a very hacky way of doing that when you could just make a mod that disables the item from ever being registries

[meager furnace]

I think randomium uses a loot table, i hadnt used it personally so cant say exactly
You can try item obliterator mod for the thrid one, you need to get into the configs folder and tweak a json file. But it crashed on my fabric modpack though, so results may vary. Id recomend to use the crafttweaker mod for removing items, personally found the scripts to be more managable

[red mulch]

I would do all of this if I knew how. It's sounds like I know what Im doing, but really I just have stuff prepared so I can learn.

[red mulch]

Also, randomium has a config that lets you blacklist items from being dropped or duped by it. That's actually the first thing I tried to work on, but somehow, it didn't work.

[sly mortar]

If available on your version, KubeJS does have ways to do all of this, including removing all recipes for items, adding custom recipes, editing loot pools (though I haven't messed with that using Kube yet, I've only needed to do it with datapacks once for my projects) and denying events eg placing a certain block

Crafttweaker is good too, though idk if it can change as much stuff as Kube

[red mulch]

Oh damn, I forgot to mention that! My modpack is on version 1.20.1

[red mulch]

also, im reading the kubejs wiki and it all looks complicated

rather, it looks overwhelming

[red mulch]

i guess ill post this then to start off everything, since its a bit quiet in here:

Basically, this is what I made so far for the custom recipe of an item. basically, I want to make a datapack of this that removes the old recipe and replaces it with this new one.

[meager furnace]

cant really help you without seeing what your configs look like unfortunately

[meager furnace]

is this in a script, a config file or a datapack json?

[red mulch]

in a config file. I can show you what it looked like originally.

[red mulch]

also, heres the config file of the blacklist for randomium:

[red mulch]

I found this in the data folder for randomium.

same goes for everything else ive made so far.

[meager furnace]

I assume lines 16 to 23 are all from randomium, so you can remove those, in my experience, adding the "id" and "required" for all your additions should make it work

if that doesnt work (or youre too lazy), just you can test it out as is, and remove anything from lines 16 to 23

make sure that your pack format follows, randomiums packet(folder) structure too, that might be the problem too

[red mulch]

let me show you MY version of the blacklist file:

and let me know what i did wrong

because when i asked someone else to help me out with this in a seperate server, this is the outcome of their help

it didnt work, and i wasnt able to figure out what was wrong

[meager furnace]

did you make sure that the folders are setup correcty?

it looks like it should work, i can install a fresh copy of forge and randomium to take a look see

[red mulch]

this is how i have the whole thing setup up.

wait hold on

it didnt send the other pictures

there we go

[meager furnace]

i dont exactly see where anything could go wrong

did you load it into your world when testing?

[red mulch]

when i load up the game and try to enable the datapack, it just gives me an error. Let me see if i can remember what it said. this also happens when i try to enable a datapack that was already made and intigrated into a mod.

which is weird

Whenever I load up any datapack available, it says this:

reload failed; keeping old data

[meager furnace]

Well thats a first

[red mulch]

Thats why i need help. Because i dont know what happened or why it didnt work

it doesnt work with a datapack i MADE, and it doesnt work for a datapack that was already included with a mod.

[meager furnace]

Im not too familiar with reload fails, so you might need to ping/wait for some helpers to hop in

[red mulch]

darn...

all i just wanna do is balance my server so people dont become to overpowered and bully me... why do i always have issues like these happen to me 😔

[red mulch]

@shy tiger Apologies if im interrupting you, but since I still haven't been able to do what I mentioned in this post, can I ask you for help on the datapacks I want to make? I can show you what I have so far.

[shy tiger]

yeah sure!

so wait, which aspects are you unable to figure out right now?

[red mulch]

well, yesterday I showed problem? (the actual user, not the word) the datapack I made for blacklisting items for the Randomium mod. Basically, the mod page tells you that in order to prevent certain items from being duped or obtained via randomium, you can make a blacklist datapack using the config files the mod provides. So I did that, and made sure everything looked correct (atleast to my knowledge). However, when I enable the datapack (or any datapack) in a world, it gives me this error and doesn't enable the datapack:

reload failed; keeping old data

this is what the blacklist datapack that I made looks like:

[shy tiger]

hmmm

would you mind sending me the file? i have a minecraft datapack plugin for visual studio code, so it would be easier to catch any simple format issues

[red mulch]

sure

[shy tiger]

sorry, i meant of the whole pack, haha

[red mulch]

oh

so wait, like everything? the packmcmeta, the folders?

[shy tiger]

yeah just the folder within the datapacks folder

[red mulch]

here it is

btw, theres some other datapacks I also want to make, but for now I want to focus on each one that I need individually so you or anyone else doesnt mixed up or confused.

[shy tiger]

ty

[shy tiger]

yeah thats fair, we're all happy to help when we can though im sure

[red mulch]

alright. once the randomium blacklist that Im making works, ill go over the details for the next one.

i can also send you the randomium mod itself, in case you need it for something

[shy tiger]

found the issue

2 missing commas

add a comma after ultimate_dust and creative_motor @red mulch

[red mulch]

hmmm alright

[shy tiger]

probably shoulda just looked at the .json image closer but wtvr im lazy rn and looking at the file was easier lol

[red mulch]

give me a sec and ill check if it works. I would like to mention that I also got the same error when enabling a datapack that was already built in a mod.

[shy tiger]

alright yeah hope it works

[red mulch]

you know, a datapack that adds extra content

[red mulch]

it worked! i still gotta add some items to the blacklist, but it actually prevents me from duping the blacklisted items, which also means it wont drop when you mine randomium.

[shy tiger]

awesome!

lmk when you need help on the next thing

[red mulch]

will do.

[red mulch]

ok, so i need help in the next datapack. basically, im making a datapack that replaces both the advancement name of 2 items AND the crafting recipe of the 2 items. when i tried out the datapack in the world, it simply made both items uncraftable.

with no recipe to look up in JEI.

[shy tiger]

i recommend trying a youtube tutorial on changing item recipes, if you havent already

since it will explain better than i will, and ofc ill be here if you still need help

and by advancement name, do you just mean like, achievement advancement?

[red mulch]

I have actually. I have crafttweaker in my modpack, but I dont know how to use it, even after looking up tutorials of it.

[red mulch]

basically when you do something, like getting diamonds for the first time, the game announces an advancement in the chat. I basically want to change what it says when you get the advancement for the items.

the name specifically

[shy tiger]

yeah thats pretty easy, so let's start with that (though recipes arent super hard either)

im a little busy rn so sry if im slow to respond, but basically, make a folder under data called "minecraft"
under that make "advancements"
in there, make a .json file with the name of the advancement you wanna change (as it is in /advancement) minus ofc the namespace

then from there go to this website https://misode.github.io/advancement/

click on presets and select the advancement

then edit the title as you see fit

[shy tiger]

and paste the .json data it gives you into the .json file you made

[red mulch]

but what if the advancement im trying to replace/change is from a mod?

[shy tiger]

hmm, im not 100% sure how to grab the base data for that, but youd just change "minecraft" to the mod's namespace

if its a simple advancement you want to change i can just help you recreate it but

if its more complicated i can try to look into grabbing the data for the advancement