how to make an auction house?

[ashen field]

I've been wanting to add an auction house for part of my custom commands. All the current auction houses I know of are behind a paywall. It wouldn't matter if it's a chest like gui or just basic forms.

I'm not sure where to start and I'm not good enough at databases, would preffer tags or scoreboards to save stuff in? Idk

Anyone have a good direction and what I should do?

Would I make an unkillable entity to tag and add scores too and keeps all the data, then just update it depending on the tags it has on it every couple of seconds? My issue would be keeping the correct data or nbt with enchants etc, so maybe throwing the stuff into a chest and updating often? - tag the player if they grab the item and then it could remove and ask if they want to purchase? I'm assuming I would have to add info the item when placed into the chest...

Getting the players sell price etc would be something else... maybe detect the next players typed number to label a price to the item?

I could use lore to help keep saved items?

• maybe copy the item listed by a player into a single chest and pull from it when needed

[pearl locust]

I’ve been working on this issue for some time. Some person hired me to include it in an addon. Anyway it’s not an easy job, as there are a lot of things to consider.
First step however is database. You don’t need to make your own, go on GitHub and find some good onde. Note: reverse engineering it will allow you to update it if it breaks in the next updates and customise it to your needs.

Once you’ve got your database working it’s all forms (chest ui is a nightmare if you don’t already know it)

You will have to consider many scenarios, and ways people could cheat to grab stuff for free. Good news is that this new version of the api gives you a few more tools (than the previous) for this task

[ashen field]

good to know thanks for your reply,

so your saying a database can save nbt data? If there was a custom item what would you do with it? Im also thinking the enchant levels and stuff could the player sell picked chests with data+

ofc im sure until we have the nbt data options we are limited

[pearl locust]

Well, you have two options: new version of api lets you get almost all relevant properties of an items: enchantments, name, durability... you can just destroy the item saving all these properties, and then create a new item with these same properties (which will hence be the same as the other).
Otherwise, I used an entity database. Entities have inventory. You can transfer the item to these inventories, and then move it back from there. Some auction houses even create a custom (invisible) entity that follows the player, the agents or idk how was it called...

Ofc the entity database uses custom unkillable and invisible entities

[ashen field]

awe okay so using an entity to save the data

very interesting

i feel like im a ways out before i can feel good enough to create an auction house

i know know to get logic to work, but knowing how to do the items will be a little confusing

i haven't worked with items inside inventorys much yet so im already at a setback

😄

[pearl locust]

Well... for how everyone despises it I used smelly’s database, which is an entity database. I just had to fix a couple of lines of code so to store also items in it.

[ashen field]

oh nice haha

i would almost be down to purchase a working auction house someone has... but at the same time it would be really good to learn

[pearl locust]

Yeah, well, I consider myself good enough with scripting and coding, and that was not an easy job to do (considering a ton of possible scenarios). So Id suggest you do it if you already have a good knowledge of coding (api stuff can be learned fast, as it’s all documented)

[ashen field]

i have learned javascript just through minecraft bedrocks api... so im still a very early learner

but im pretty good at updating packs

[pearl locust]

Otherwise, I think there is some auction house addon out there you could use, maybe you could try to reverse engineer it.

[ashen field]

true, do you know of any auction house that sorta works that is out?

[pearl locust]

Uhm, no xD, sry. But I’m sure you’ll find some on GitHub

[ashen field]

are you talking about the pc minecraft java?

or just some people have made already in bedrock

[pearl locust]

No, bedrock

[pearl locust]

Auction house? Uh, yeah, I’m quite sure there is some available. I think smelly has one. And I think others too may have

You might search the word “auction” in this very server. I’m sure you’d find a lot of useful info

[ashen field]

probably only in the old api

i will keep trying, i already have tried searching for something but didn't seem to have anything complete

well, i might have found something but hopfully there is a download lol'

[pearl locust]

Nice!

Well... if there’s so few of them out there I’ll consider publishing mine too ig (altho I have to update it and finis a few things)

[ashen field]

well, what i found they don't have any download or anything, just hard to find anything

[pearl locust]

Damn

[ashen field]

looks like ROT has one i might be able to look into, but we will see

thx for giving me suggestions

[pearl locust]

Np 👍

[raven valley]

seems easy

youd def have to log all of the players info as an object tho

so if a player buys there item while they're offline it would just add onto the object