help-development

[wet breach]

the user that executes said query needs to have perms to be able to create DB's

same way you do it from a terminal

the commands are not different just because its a query

you can use sql scripts btw too

that has basically all the queries to create your DB the way you want

if it doesn't already exist

this is actually the recommended method instead of a bunch of hardcoded queries 😛

[winter galleon]

    public void onArmorStandInteract(PlayerInteractAtEntityEvent event) {
        Player p = (Player) event.getPlayer();
        ItemStack macchinetta = new ItemStack(Material.PURPUR_BLOCK);
        ItemMeta itemMeta = macchinetta.getItemMeta();
        itemMeta.setCustomModelData(16);
        macchinetta.setItemMeta(itemMeta);
        if (p.hasPermission("eternitystaff")) {
            if (event.getRightClicked().getType() == EntityType.ARMOR_STAND) {
                ArmorStand armorStand = (ArmorStand) event.getRightClicked();
                if (armorStand.getEquipment().getHelmet().equals(macchinetta)){
                    p.sendMessage("Its Working");}
                else{
                    p.sendMessage("Its not working");

                }
            }
        }
    }```
why its not working

[prime reef]

because you're just making a new item, in context, and then checking if the armor stand is wearing this item

at no point is the armor stand's helmet set to this item

[young knoll]

.equals should work as long as the items are identical

.isSimilar is the same but ignores stack size

Neither ignore durability tho

[remote swallow]

and whose fault is that

[echo basalt]

If we create two identical objects, == will return false but .equals will return true as long as the two objects' contents are the same

[vast raven]

madre

holy..

[inner mulch]

would there be any difference between broadcasting a message, or sending it to each player in a for loop ?

[young knoll]

broadcast also goes to console

[echo basalt]

Habit 1 - Guard clauses might be applicable here

[inner mulch]

so no performance difference?

[hazy parrot]

no

[grim hound]

I use both

[wet breach]

what performance impact are you expecting in terms of sending a message?

weird to think a message would cause such things

[upbeat hornet]

How can I ensure my plugin will only start the onEnable() method after another plugin has been 100% initialized?

[young knoll]

depend: [OtherPlugin] in plugin.yml

[upbeat hornet]

have done that

but my plugin still starts slightly before the other plugin is done executing onenable

[inner mulch]

i want to create a custom chat system therefore every chat message will be sent in this way

[upbeat hornet]

Other plugin onEnable:
At the very end: important method 1

My plugin onEnable:
At the very begining: important method 2 depending on important method 1

[upper hazel]

1270 ms for find rtp location it's a lot?

[young knoll]

Is that the correct name?

[wet breach]

ok but I am not sure why you believe sending messages would have some kind of heavy impact

I also recommend learning about chat channels and conversation api as well if you want to make a more decent chat system

[upbeat hornet]

plugin.yml of other plugin

[proud badge]

how do I parse Entity to ArmorStand?

[chrome beacon]

Just instanceof and cast?

[proud badge]

Ok

[eternal oxide]

So long as you are not using NMS

[upper hazel]

There is code for finding locations, but the thing is that it usually takes more than a second, and I have seen where it takes a maximum of 366 milliseconds. Any optimization ideas? https://paste.md-5.net/eluvozekul.cs

[eternal oxide]

it would be faster to loop all blocks in the region that are in your blockList then add their Location to a Collection and pick a random one

the performance of randomly picking a location until it matches one of your types could take forever

or at least until time runs out

[young knoll]

Generally the issue is loading chunks

Also you can speed up the height check by using getHighestBlockAt

[grim hound]

What the hell is this

Just generate a random loc

Get the highest block

Add 1 to y

[eternal oxide]

loading chunks could cause bad performance but his issue is line 6

[grim hound]

And teleport

[grim hound]

Maybe also check how solid it is

[eternal oxide]

he's literally picking a location at random every time

[glossy venture]

you could try querying the terrain's max height at the location and start checking for solid blocks up from there

[grim hound]

Also you can search async if you use a heavy method

And have it fire a synced teleport at completion

[glossy venture]

also possibly pass the chunk to getSolidLocation and use local block coordinates so it doesnt have to find the chunk for the location every time but that prob wont matter much

[remote swallow]

what would be the better way to have a leaderboard setup, do i have my 1 map for stored data unsorted then another map that stores leaderboard pos plus uuid or do i sort it when the leaderboard is needed

[glossy venture]

also true

[grim hound]

Depends

On your usage

[glossy venture]

u could do this by selecting a couple random chunks, taking snapshots and asynchronously checking those for locations

or use nms

[sullen marlin]

Use a tree map 🙂

[remote swallow]

could be queried every 5 seconds by papi or could be a 40 minute difference between query from command

[grim hound]

/\

Even have the whole process be async

[remote swallow]

could i sort by a method in the value with a tree map

[glossy venture]

can u take chunk snapshots off the main thread

[sullen marlin]

Ye custom comparator

Although need to reinsert to update so use immutable value

[remote swallow]

something like this?

[young knoll]

No

You also cannot load chunks async

[glossy venture]

yeah so maybe just take chunk snapshots on the main thread and do the searching on another thread

[sullen marlin]

I guess, you could also just have one map

[remote swallow]

would it be better with a hashmap and a treemap

[glossy venture]

are u loaidng all the data on startup or smth

[remote swallow]

nah

configurable amount of leaderboard positions and as they join

[glossy venture]

wouldnt it only put loaded players on the leaderboard

[remote swallow]

i mean you would expect a leaderboard to include offline people right

[glossy venture]

yeah

[young knoll]

I just do my leaderboard queries when requested

Course that doesn’t work with papi

[remote swallow]

well i dont want to query something from db with papi

[young knoll]

Papi completable future support when?

[remote swallow]

kekw

[glossy venture]

why do u need papi

[remote swallow]

so people could show the leaderboard position on a scoreboard or a hologram or whatever

[grim dock]

I am trying to detect a Right Click Interaction with a specific item using the held item's displayName to get an object from a HashMap. This works for every item with a normal ColorCode like §a but if displayName has an RGB color and is generated with textComponent.toLegacyText(), the saved name does not match the name from the Interaction Event. Why is that?

[glossy venture]

ig

u makign a library or like public plugin?

[remote swallow]

public plugin

[wet breach]

kind of, except you can reference a sql file

[glossy venture]

ah

[wet breach]

also the exception you should be catching is SQLException

and not just generic exceptions lol

[glossy venture]

i need to add bulk queries and indexes to my datastore framework bc i just realized how little it can do

[remote swallow]

im sensing jankness emerging

[lost matrix]

Dont use the name or lore of items to detect custom items. Use the items PDC instead.

?pdc

[undone axle]

https://www.spigotmc.org/threads/a-guide-to-1-14-persistentdataholder-api.371200/

[glossy venture]

lmo

[lost matrix]

ugh

[wet breach]

says access denied

[remote swallow]

7smiles been here 30 seconds and his head hurts

[grim dock]

Ok, I'll work into this, thank you

[wet breach]

your credentials are either wrong, or the user in question doesn't have the perms required

seeing as you are using the user test I am going to assume the user doesn't exist

[young knoll]

@Inject some memes

[lost matrix]

At least return a copy of your list...

[lost matrix]

You animal

[glossy venture]

i wrote regex just to show u exposed collections

[lost matrix]

Yeah, ill never get people sabotaging their data integrity like that...
Might as well make your fields public.

[glossy venture]

i did

nah but this is a private project and im lazy so idc

[wet breach]

you need to log into the DB server as root and create the appropriate user

I recommend creating 2 users one with localhost and the other with 127.0.0.1

so it doesn't matter which you use

or just create 1 user that is allowed access from both domains

either or doesn't matter a whole lot

[glossy venture]

isnt localhost the same as 127.0.0.1

[wet breach]

no

[glossy venture]

oh tf

[wet breach]

localhost is the hostname

127.0.0.1 is the ip

[glossy venture]

ah

but the os will resolve localhost to 127.0.0.1 right

probably even earlir

than the os

[wet breach]

some OS's don't have localhost mapped to 127.0.0.1 and thus can fail

[glossy venture]

interesting

i assumed it would be hardcoded in earlier, like maybe in java but ig not

[wet breach]

but mysql doesn't treat hostnames like localhost the same as 127.0.0.1 either even if localhost is mapped appropriately

[glossy venture]

weird

[lost matrix]

Which one? Even RTOS has that mapped.

[wet breach]

I think ubuntu was one of them, they could have since fixed it and was probably just a bug in their stuff

I haven't used any recent versions of ubuntu to see if its still there, but its not like it bothered me either

I just learned to not rely on localhost meaning loopback address

localhost could be the local ip instead of loopback

there is no standard that says localhost has to map to loopback lol

[upper hazel]

Bukkit api not can be async

[wet breach]

some methods in the api can be used async

[glossy venture]

u can make a snapshot of a chunk and read from it asynchronously

so if u select like 3 random chunks

and make snapshots of them

then search for a location in those asynchronously

and then once found do Bukkit.getScheduler().runTask(plugin, () -> player.teleport(location))

that would work in theory, unless those chunks are like all ocean

in which case maybe dispatch the process again which sucks but at least it doesnt lag the server

[upper hazel]

Wat this?

[glossy venture]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/Chunk.html

[wet breach]

not sure if you could do it via query, but if you can you need to use a user that can create users and modify them and then you have to flush the privileges

typically the root user is all that exists to do this

I don't recommend using the root user though, generally your DB server should already be setup with the appropriate users and permissions before usage

[glossy venture]

final Random random = new Random();

public void findRandomLocationAsyncThenRun(World world, int range, Consumer<Location> consumer) {
  final int CHUNKS = 3;
  int rangeInChunks = range / 16;

  List<ChunkShapshot> chunks = Stream.generate(() ->  world.getChunkAt(random.nextInt(rangeInChunks), random.nextInt(rangeInChunks), /* generate */ true))
      .limit(CHUNKS)
      .map(Chunk::getChunkSnapshot)
      .toList();

  Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
    Location loc = null;
    // find location using the chunks list

    if (loc == null) {
      // restart process with different chunks
      Bukkit.getScheduler().runTask(plugin, () -> findRandomLocationAsyncThenRun(world, range, consumer));
    } else {
      Bukkit.getScheduler().runTask(plugin, () -> consumer.accept(loc));
    }
  });
}

void someMethod() {
  findRandomLocationAsyncThenRun(world, 6400, loc -> player.teleport(loc));
}

[grim hound]

It can

Not all

But many can

[glossy venture]

shit like sendMessage is just packets

im not sure if thats async doable tho

i dont see a reason why it wouldnt be tho

[grim hound]

Yeah

[young knoll]

It is

[inner mulch]

Is there a workaround to create a static method which uses generics?

[slender elbow]

huh

[inner mulch]

i know it sounds crazy

but i somehow need it

[young knoll]

Static methods can use generics

[inner mulch]

oh wait generic classes

[young knoll]

They just can’t use the generic types specified for the class since they aren’t a part of the class instance

[inner mulch]

yeah :/

[river oracle]

show what you want to do

you need some form of static constructor or what

[inner mulch]

https://www.spigotmc.org/threads/working-with-data.562421/?__cf_chl_tk=1ARs6S6gk3PGHX3jPK9OgLei2Nv0R86NdhHpmij1MAk-1701035691-0-gaNycGzNIHs

im following this tutorial

i want the get method to be static

[slender elbow]

n oyou don't

[hazy parrot]

why would any of those methods be static

[inner mulch]

how should i use the data in another plugin?

if i cant acces the get map

[hazy parrot]

you can sure access map even if it isn't static

[inner mulch]

but not the same filled one?

[river oracle]

use Dependency Injection or in your case you can easily just do
MainClassWhatever.getDataHandler()

[inner mulch]

its a different object

[hazy parrot]

get your api -> get data manager

[inner mulch]

?

[wet breach]

?di

[undone axle]

Guide to dependency injection: https://www.spigotmc.org/wiki/using-dependency-injection/

[inner mulch]

okay, but isnt dependency injection not clean?

[wet breach]

not sure what you mean about not clean

[inner mulch]

injecting it into every class that needs it doesnt sound fun to me

[wet breach]

you don't necessarily need to inject the main plugin instance into the class, but all classes are just objects

you either create the object and hold it somewhere for it to be accessed or you create a new one

you should avoid static if it doesn't need to be static. Anything static can not be GC'ed and stays in memory

one of the caveats of statics

[inner mulch]

whats GC'ed?

but isnt letting something stay in memory the thing i want, when trying to load the database data into memory?

[wet breach]

database data is independent of the objects

Your data depending how its structured could be multiple objects and those objects held in memory

when that data isn't needed which also means the object you will want it to go away

not persist

your connection manager for the database could be static since this object wouldn't be ideal in going away and you don't necessarily want more then one thing controlling your connections

[inner mulch]

but static isnt a problem when im unloading the player from the static map once its not needed?

[wet breach]

it can be because static persisting in memory isn't the only thing that may be bad

it also prevents there being multiple instances

[inner mulch]

i dont want there to be multiple if the data is the same?

[wet breach]

ok, but static isn't dyanmic though

[inner mulch]

money or something shouldnt be different per player per object

[minor junco]

Garbage collected, it's a memory process from the java virtual machine that erases phantom/loose objects whose references aren't used anymore

[wet breach]

its an all or nothing thing

when it comes to static

[inner mulch]

thanks

[inner mulch]

okay

[minor junco]

I'd recommend googling Garbage Collector theory and studying more, a really interesting topic

Also very helpful when you start working with lower level languages such as C

[wet breach]

a very large topic too

[minor junco]

Indeed

[wet breach]

it could be its own class in my opinion XD

[minor junco]

Or just make yourself familiar with the JVM memory model

That will superficially cover GC

[wet breach]

I recommend not using static until you learn more about it

so that it doesn't interfere with your stuff in ways you are not expecting

you actually don't need static to make the majority of anything, its just a handy utility to help improve stuff

[minor junco]

@wet breach Wheres his code? I cannot follow the thread you lads have

[wet breach]

#help-development message

they wanted their get method to be static so that they can access it from other classes

and basically everyone so far said for it to not be static, and then I sent the link for di and that it doesn't just apply for the plugin main instance 😛

and then you appeared in the convo above

XD

[minor junco]

Oh okay

[wet breach]

but everyone is correct that it shouldn't be static

[minor junco]

I mean just make an attribute in your plugin object where the data manager is initialized and access the main manager through your plugin singleton no?

[inner mulch]

frostalf i know static should be use carefully but in my opinion this data should be singleton because why would there be 2 instances of money data or something

[wet breach]

the thing about singleton is that it makes the object only have a single instance. You can have multiple money objects/data per player

making a class a singleton wouldn't help as it would mean all the player objects would have the same data for money

[inner mulch]

no thats not ture

[minor junco]

I mean it's more like if you assign a data manager to a plugin instance, whereas there's a possibility in which a plugin instancr is initialized more than once (which it is for spigot's case code wise, since there can be another allocation), I'd use a class local variable

[inner mulch]

every player has a object in my design assigned to them, i want this hashmap to be static

[wet breach]

you are correct it isn't entirely true but unless you have some method in the singleton that can obtain data dynamically then the data the singleton holds is the same for anything accessing it across the board

[inner mulch]

i dont really understand, but im sure that every player has its own data in the hashmap

[remote swallow]

if the player data manager is the singleton the data can be seperate per user

[minor junco]

You should differentiate between the ideologies behind what you're trying to solve. If your goal is to make a decorator of a hashmap to store custom data, you should focus on modularity. By making it static, you ensure there only is one decorator and this enforces logic and a specific pattern for users of that map

Which in turn is not modular

And not disconnected from it's usage

[inner mulch]

yeah i want it static but it doesnt work because the class is generic

:(

[minor junco]

Singleton it is then mate

But again, no need

Makes not a lot of sense

[wet breach]

in my opinion I would go with a player manager singleton with a wrapper around the player object for custom data

in this manner, you only need to have the player object to access your data

with a centralized place it is held

[minor junco]

Yeah but use a WeakMap to not enforce a reference to be kept to the player even tho it may become invalid

Or use the player's uuid (preferred)

[wet breach]

if you want, depends how it is all setup really

reason we generally recommend using uuid or avoiding the player object is because many forget to ensure they are removing the objects when players leave

or otherwise known as doing cleanup

[minor junco]

again just use the WeakMap

and remove the player on leave to ensure

[wet breach]

if you want, its not an inherent need

[minor junco]

it should be tho, so the JVM actually enqueues the player instances. It is also recommended by the spigot authors since the underlying entity object can become invalid

or again, use the simpler variant: UUID's

[wet breach]

the advantage weakmap would provide over not using it, is ensuring gc happens on it faster

[minor junco]

allows you to also have data when players become invalid

[wet breach]

if you just use the player object, it still gets gc'ed if nothing is referencing it

[minor junco]

i mean as long as a player is kept as a key in an map entry the player instance won't be cleaned, due to the player being directly referenced

unless the player is a specific type of reference

such as WeakReference, or SoftReference if you want to allow JVM to enqueue the referee on memory demand

[wet breach]

yes if you don't remove it from a map, which is basically what I am saying in terms of clean up it won't get gc'ed

[minor junco]

ah yes

[wet breach]

yes everything you said is true in terms of recommendation but its just because we get a lot of people that don't know the proper things so the recommendations just helps them in the long run from running into some weird errors 😛

well weird errors for them anyways

[minor junco]

Just do it similar to this:

public final class PlayerData<T> {
  private static PlayerData<YourPlayerDataObject> data = new PlayerData();
  private final Map<UUID, T> customDataMap = ...;
  private PlayerData() { ... }
}

If you do enforce a singleton the generic part is completely unnecessary

[minor junco]

yeah ofc haha ^^

[ivory sleet]

yeah id also advice using singleton

if static at all that is

[minor junco]

@wet breach all good I am just trying to be as accurrate as possible to give the best advices to people, so if they don't understand something they can google it and learn even more (at least that's what helped me a decade ago when i started programming lol)

[ivory sleet]

I think its fair to give ppl options and sometimes let them experience the pros and cons for the different options you may give them

[minor junco]

yeah true

[ivory sleet]

as opposed to telling them in advance ^^

[minor junco]

i mean afterall we need to make the mistakes to actually learn from them, being told not to do them won't have much of an affect when you're a beginner

[ivory sleet]

yeah, definitely

[minor junco]

but id argue its different for advanced people yk

but its always hard to measure how much a person have had experiences in the field with only a couple messages

[ivory sleet]

yea

fair

[minor junco]

like when im trying to help here im starting off thinking that the people involved are advanced, since i think thats the median (maybe im wrong)

havent been in this forum for too long

[ivory sleet]

oh it vastly differs,

[minor junco]

i guess yh

[wet breach]

if gc'ing is your concern, an optimization trick people forget is nulling out objects 😉

gc will remove nulled out objects faster then if they are not

also, another trick to that is you can kind of force a gc to happen if you null out many objects quickly too lol

[minor junco]

yeah

but don't overdo it the compiler and JVM have become really smart

[wet breach]

typically you will want to try to re-use objects though to stick with OOP

[minor junco]

but its an optimization for complex code yh

[wet breach]

long time ago you were taught to null out objects you were done with, but I don't think they teach that anymore

except for languages like C or CPP

where it is a necessity

[ivory sleet]

jvm flags also huge part of optimization

esp the gc ones

:>

[wet breach]

yes I agree

all those flags are meant to be used

the JVM is good for a general standpoint

but you should utilize them as each program is actually different and it helps the JVM out instead of guessing

[hazy parrot]

how is it important for c or cpp, never heard about it 🤔

[ivory sleet]

THIS so hard

[wet breach]

because C and CPP don't have GC so you have to do your own memory cleanup

the only way you can remove an object in those programs is to null them out

[hazy parrot]

isn't every object cleared when it goes out of scope, as there is no gc

[wet breach]

there is no gc at all

its left to the programmer to handle all the memory cleanup

[hazy parrot]

aside from dynamicly allocated objects

[hazy parrot]

isn't every object cleared when it goes out of scope, as there is no gc

[wet breach]

no, it stays until something tells it to go away, which is why memory leaks are more common to happen in C or CPP then other languages

because typically somewhere someone forgot to null out an object

so it just got left behind lol

[hazy parrot]

i wouldn't say so, memory leaks are due to bad use of dynamic allocation

[ivory sleet]

rust 🦀

;:D

[hazy parrot]

std::string &foo() {
  std::string bar();
  return bar;
}

this will not work

as bar doesn't exist when out of scope

[wet breach]

I suppose, but objects left behind are another way, over time the application will consume a lot of memory if its not cleaning up appropriately

even in Java you could technically go out of scope of the memory that GC handles commonly. Anything done using native methods for example GC doesn't handle, but most of this happens with JNI related things or if you use unsafe and manually make buffers in memory.

and the exception to either of these two is memory mapping files

[minor junco]

you have to differentiate where the objects are allocated. Heap or stack? It plays an important role since a so-called stack frame is allocated for each block / method invocation. The stack pointer tells you where the current last object and next object will be allocated. Objects saved on the heap go through the OS, thus the heap is way slower (!) than stack allocation (also cache misses come into play but thats a different topic). For C/C++ the developers have the responsibility to free memory for heap objects. There are so-called smart pointers which have a reference count and free heap allocated objects automatically when they go out of scope.

so to actually answer your question: objects allocated on stack are automatically cleared; heap allocated objects not.

[hazy parrot]

haven't i said unless dynamiclly allocated ?

[hazy parrot]

.

[minor junco]

(... didnt see that ...)

[wet breach]

well aparx provided a more thorough answer for those that don't understand

nice job 🙂

[minor junco]

no worries gotcha

haha

[hazy parrot]

that is exactly what i said, no need to nullify objects on stack, just free ones from heap

[minor junco]

I think we were talking about Java, no?

[wet breach]

well to free them you null them out unless this has changed

[minor junco]

in Java every object (actually: non primitive) is allocated on the heap

[hazy parrot]

nah we started talk about cpp

[minor junco]

ah okay

[ivory sleet]

it gets more complicated when u use langs like java, which now has virtual threads, gen zgc etc, ugh barely wanna think about all the stack and onheap managament that is done

[minor junco]

exactly

it's a lot of overhead, but the JVM GC is probably the best out there

[ivory sleet]

gen zgc is extremely op

[minor junco]

there was a language (forgot the name) that claimed to have like crazy stats on GCing

[ivory sleet]

haskell maybe

[minor junco]

turned out it was all sketchy and untrue

nah dont remember

[ivory sleet]

oh idk

well haskells gc is also interesting

[minor junco]

yeah

[minor junco]

i have no history with haskell so cannot comment on that :/

[wet breach]

always fun to learn this of a language that claims stuff

[minor junco]

yeah didnt know it was possible for a language to falsely advertise important design choices

[ivory sleet]

Haskell's computation model is very different from that of conventional mutable languages. Data immutability forces us to produce a lot of temporary data but it also helps to collect this garbage rapidly. The trick is that immutable data NEVER points to younger values. Indeed, younger values don't yet exist at the time when an old value is created, so it cannot be pointed to from scratch. And since values are never modified, neither can it be pointed to later. This is the key property of immutable data.

This greatly simplifies garbage collection (GC). At anytime we can scan the last values created and free those that are not pointed to from the same set (of course, real roots of live values hierarchy are live in the stack). It is how things work: by default, GHC uses generational GC. New data are allocated in 512kb "nursery". Once it's exhausted, "minor GC" occurs - it scans the nursery and frees unused values. Or, to be exact, it copies live values to the main memory area. The fewer values that survive - the less work to do. If you have, for example, a recursive algorithm that quickly filled the nursery with generations of its induction variables - only the last generation of the variables will survive and be copied to main memory, the rest will be not even touched! So it has a counter-intuitive behavior: the larger percent of your values are garbage - the faster it works. 

wiki.haskell.org

[minor junco]

Data immutability
nice!!

i hate mutability

[ivory sleet]

well I think of them as mutually exclusive tools/ideas rather

[minor junco]

its an oop concept (I think, correct me if im wrong) and its making me mad sometimes

[ivory sleet]

dont really have strict hate nor love towards one or the other

I mean sometimes mutability is just needed depending on language and other functional requirements by the means of optimizing a design or perhaps speed

[minor junco]

yeah

i mean always allocating new objects to "mutate" a single attribute is really costly and unnecessary. It comes down to the paradigm you use

[ivory sleet]

yeah

[minor junco]

I think structs as in cpp is a great thing

whereas you have restrictions but can group closely related attributes

but working with a language like Java that enforces you to use OOP is just... yeah...

[ivory sleet]

yeah, procedural programming is something many prefer to traditional object oriented programming

[minor junco]

I love Java for it's adversity but yh idk

[minor junco]

yup correct

[wet breach]

well you could do functional programming in java if you wanted

[minor junco]

I mean you see Java adapting it more and more

[ivory sleet]

but java has sort of (like many other langs) gone over to a more modern approach

[minor junco]

especially with Java 8

with streams

[wet breach]

many people will probably hate you for it

XD

[ivory sleet]

esp since java also allows for easier use of the data oriented programming style nowadays

and the functional bit also :^)

[minor junco]

okay but now we talk javascript lmfao

if we talk about data objects

lets talk about JSON

xD

the simplicity is crazy

[wet breach]

json is so overrated

[minor junco]

but comes at a cost

[ivory sleet]

bson

:D

[wet breach]

the only thing I hate about json is the fact that it can have infinite arrays of arrays

[ivory sleet]

well yesnt

[minor junco]

i mean there are a lot things wrong with JSON

no questions asked

[wet breach]

which is weird and there isn't really a way to know when you reach the end of a multi-dimensional array except just looping until you encounter no more arrays

[ivory sleet]

i mean java has made major steps towards letting devs step in that direction of paradigm

[minor junco]

yh i mean the new JDK versions are all great imo

from java 8 onwards they made good changes

slow, but qualitative changes

[ivory sleet]

yea

[wet breach]

oh that reminds me, I think next weekend I should work on a lib for unix sockets 🤔

[minor junco]

rather have them overthink everything 100x than do a breaking change down the road for their stupidity for committing too quick

[ivory sleet]

i prefer that to kotlin tho, just pushing new features as soon as possible almost

[wet breach]

still don't know how I am going to implement that for spigot and bungee though

[ivory sleet]

lmao

and well for things like REST apis we now have graphql, (yes there are still some issues w/ it but hey, its cool)

[minor junco]

idk I can definitely see why people prefer kotlin over Java, but not for me. I am personally so familiar with Java code and prefer that

hell been programming 10+ years with java

[ivory sleet]

well I just think kotlin is a harder tool imo

[minor junco]

why switch huh

[wet breach]

the only thing I have gathered from those using kotlin is the whole null thing

[minor junco]

nullability yeah

[wet breach]

which I don't really have an issue in terms of null lmao

[ivory sleet]

kotlin gives away ton more features, it becomes hard to know which of them one should use, code can become very messy and unreadable with kotlin rather hastily

[minor junco]

well there was a time where i only programmed in typescript with complex generics, coming to java again was a pain simply due to the nullability

but typescript is type erased anyways

so can't really compare that

[ivory sleet]

type erasure

is

in java

;-;

well u have reifiable and non reifiable types, but still

[minor junco]

yeah

loops alone are so weird for the trained java eye

it seems like unnecessary object allocations

but it probably isn't

[ivory sleet]

also the dumb interoperability

[minor junco]

since the compiler handles all the underlying tasks

[ivory sleet]

i mean interop is cool and all

[hazy parrot]

but coroutines 🤑

[ivory sleet]

its just that it wasnt semantically designed in a good way

[minor junco]

may i say something, we kinda got off topic guys

[ivory sleet]

true

[minor junco]

from the help-development

to this

[ivory sleet]

altho virtual threads :)

[minor junco]

drifted away slightly

[hazy parrot]

coroutines even cooler with loom

[ivory sleet]

yea aparx, true, well as long as this channel covers the more programming talk its rather fine

[minor junco]

ig

[wet breach]

I think there would be a lot of hinderance if this wasn't the case in java

[ivory sleet]

yeah true

well it was stated that its mostly for backwards compat that it exists

[wet breach]

if it didn't exist polypmorphism would be more complex

[ivory sleet]

since they wanna touch on completely non type erased generic types

[young knoll]

OwO?

[wet breach]

also, because of type erasure generics don't incure overhead at runtime either

[ivory sleet]

well I mean, project valhalla

[ivory sleet]

true

i mean there is some info retained

like for reflection purposes

    Value Objects, introducing class instances that lack identity

    Flattened Heap Layouts for Value Objects, supporting null-free flattened storage

    Enhanced Primitive Boxing, allowing primitives to be treated more like objects

    Null-Restricted and Nullable Types, providing language support for managing nulls

    Parametric JVM, preserving and optimizing generic class and method parameterizations at runtime

@young knoll

[wet breach]

in regards to this, type erasure helps generate bridge methods to preserve polymorphism in extended generic types

hence it would probably be more complex if we didn't have type erasure

[ivory sleet]

yea

[quaint mantle]

Should I use abstract classes as a way of preconditions or no

[ivory sleet]

idk if u need abstract classes for that

[quaint mantle]

what's the best way to do this

[ivory sleet]

to do what, now?

[quaint mantle]

handle all those runtime exceptions

[ivory sleet]

I mean dont u just throw those in the implementation class?

[quaint mantle]

ok

[ivory sleet]

this is also one of javas weaknesses

since u're in principle specifying implementation details in the javadoc by mentioning the cases of which an exception will yield

so yeah, prob just have some conditions in the impl class :>

[slender elbow]

a.k.a. a contract?

lol

like, if it's detailed in the documentation it's contract, not impl detail, e.g. "throws NPE if param1 is null"

[short pilot]

how could I handle a join system message for factions where a player could request to join a faction and someone of high ranking from said faction could accept?

Like if the leader did /faction requests chat prompts would pop up with this format

NAME [Accept] [Decline]

And you could click on the different parts to handle said actions

ive def seen it before but not sure what that's called

[young knoll]

ClickEvent in a TextComponent

[short pilot]

is there a way to pass in the name it's associated with as a parameter

[young knoll]

It runs a command

So you can pass the name as a param to said command

[short pilot]

i see

looking at the reverse situation, how could one handle invites to every player from a faction leader inviting them to join? Even if said player was offline

provided a player name

[minor junco]

hello there, could anybody tell me what I have to do to change the level verbosity of my plugin logger so that records with that level are actually printed out? Changing the logger's level to ALL does not have any affect

logger.setLevel(Level.ALL);

The above did not work, I assume it's due to the handlers?

[true shuttle]

How can I rotate a mob using its yaw value

[wet breach]

you have to register handlers for the levels that are not tracked

[fleet kraken]

Is there no way to get Shapeless with a specific amount of ingredient?

Like 10 obsidian; 5 nether star -> bedrock

[young knoll]

Recipes aren’t designed to have stacked ingredients

[fleet kraken]

So it's only possible with shapedrecipe?

[young knoll]

Even those aren’t designed for it

Might work with exact choice tho, idk

[fleet kraken]

Yes

but it only works with shapedrecipe

[young knoll]

Yeah like I said it’s not designed for that

[fleet kraken]

Is it possible to remove the necessary items when crafting? I mean there are no bugs in the process

Like, when craft with 11 obsidian and 5 nether star, remove 10 obsidian and 5 nether star

[young knoll]

You can try with the CraftItemEvent

[fleet kraken]

Working, thank you 👍

[remote swallow]

any nerds in here that might have some ideas of how i could add config updation to this https://github.com/The-Epic/ebiclib/tree/master/ebiclib-core/src/main/java/xyz/epicebic/ebiclib/config its pretty much just an annotated config but idk what a good way to do it would be, im already guessing ill need a version for it but im stuck on the part of actually adding it to something, bc i doubt adding an @Update("version", old, new) would be very good if there was 90 of them but i could probably just compact the conversion, but im welcome to any ideas

[minor junco]

idk exactly what you're trying to achieve. Allowance for different "schema" versions? If you want to have variable arguments just use an array in @Update, no?

[wet breach]

I suppose it depends on if you want something to happen ?

[minor junco]

btw this is a perfect opportunity to promote my library

https://github.com/aparx/bufig-library

[wet breach]

ah nothing like self promoting

at opportune times

[minor junco]

yee

[grand flint]

thast what i do to everybodys dms

[wet breach]

I ignore my DM's

[remote swallow]

so would the @Update be the better method of it?

[umbral ridge]

Looks cool 👍

[minor junco]

depends what you wanna achieve really

Hey guys I need help with something weird.
So I have a factory that allocates an item (or in this case an implementation of the factory that returns the below item).

  @ConfigMapping
  @Document("Item used to leave a match")
  @SuppressWarnings("deprecation")
  private ItemWrapper leave = ItemBuilder
      .builder(Material.INK_SACK)
      .damage(DyeColor.RED.getDyeData())
      .lore("§8Click to leave this match")
      .name("§cLeave")
      .enchants(Map.of(Enchantment.LUCK, 2))
      .flags(ItemFlag.HIDE_ENCHANTS)
      .wrap();

The item material that was initially given to the player differs from the material of the item when the player interacts with it.
The ItemWrapper is a simple and tested wrapper around an itemstack to add some custom serialization onto it, it does not affect the item itself.

The material of the item when it was created and set into the player's inventory: LEGACY_INK_SACK x 1 and when interacted with RED_DYE x 1. This is a huge problem for me, since I am using a Set with weak itemstacks to register game items allocated.~~ Trying to create a custom hashcode would result in the reference not being weak anymore. So any ideas or fixes?~~

Update: I figured out it is simply due to the versions and will just use IdentityHashMap as the underlying map for my set to use referencial equality instead of object equality

[sullen marlin]

you forgot api-version in plugin.yml

and .damage isn't 1.13+ api

[minor junco]

yeah

[minor junco]

oh thanks a lot

what exactly would you want

ah yeah it is open source

https://github.com/aparx/bufig-library

there's a prod ready release but it's still early development

[minor junco]

btw. is there any public data about what versions are used the most? When planning out projects I am always worried about users not being able to use my plugin since I still think legacy versions are used often, nah?

[sullen marlin]

bstats has some, but < 1.13 is like 10-15%

[minor junco]

oh okay

perfect haha 😄

[native bramble]

i run BuildTools with --remapped tag and have net.minecraft.server.network.PlayerConnection

[sullen marlin]

what version

[native bramble]

1.20.2

i cant get this class in my code

[sullen marlin]

did you use the remapped-mojang jar

[native bramble]

yes i think

im trying to create custom strength for blocks

[minor junco]

how would i apply color to an ink sac in 1.13+? Or is there any thread for it?

[sullen marlin]

there is no color, each color is a different item

[minor junco]

yeah I see

just because I cannot find RED_DYE anywhere

[sullen marlin]

is your dependency 1.13+

https://github.com/aparx/bufig-library/blob/master/pom.xml#L59

no its not

[minor junco]

its not for this

its just a library I use

[inner mulch]

Is it possible to not nest in for loops, as a return statement stops the loop (correct me if im wrong)?

[quiet ice]

Huh?

[sullen marlin]

use a break?

[quiet ice]

You can use continue and break if that is the question

Labels are also a thing, though not liked by many

[minor junco]

call me stupid but i just dont find red_dye, im on 1.13.2-R01

im not giving up til i find it!!

Xd

[sullen marlin]

red_dye not dye

[sullen marlin]

make sure spigot is the top dependency

[quiet ice]

?jd-s

[undone axle]

https://hub.spigotmc.org/javadocs/spigot

[sullen marlin]

it may be being overwritten by another dependency

[quiet ice]

Yeah red dye exists: https://hub.spigotmc.org/javadocs/spigot/org/bukkit/Material.html#RED_DYE

[minor junco]

mhnn

i checked it, no library exports a dependency

and i have spigot as a top dependency

I think this is an IDE thing

ima reset my caches and some other stuff

[quiet ice]

If anything, kill all transitive deps

[inner mulch]

I thought break was a switch case thing?

[minor junco]

it also is

[quiet ice]

Nope, break means "break away from the current bracket context"

[minor junco]

like my IDE crashes as soon as im trying to decompile Material.class

lmfao

wtf

[quiet ice]

So you can have

{
break; //dead code
}
// Alive code
label: {
  {
    break label;
  }
  // Dead code
}

continue works only for loops though

Which basically means "redo the given scope"

Though it will reevaluate the condition (though idk if that is the case for do-while loops)

[minor junco]

mhn after invalidating caches, deleting dependencies still doesn't work, I cannot even compile Material.class this is 100% an IDE error

[quiet ice]

Compile?

||Geol had a stroke||

[minor junco]

decompile*

well restarts do nothing

well for some reason 1.13 does not work, but 1.14 works, so Ima use this as a dependency

[lost matrix]

You dont have to decompile anything there. You have access to all sources.

[bitter rune]

So gui general gui; I need to get something created preferably in C because I don't have an environment setup to play with Java, I don't think intellij would open a gui after compiling. I just need a direction to start this I never worked with gui but I need to make a program in 6 days utilizing them

[lost matrix]

Uh, Qt maybe

Its either GTK or Qt i think. Or some open source library

[bitter rune]

I haven't even read the source material for this yet but it's based on all languages and not structured towards anything so I can figure it out in any language. They want pseudocode but I'm giving them real code it's the last big project of this course so want to go above and beyond.. I'll check those out thanks

[wet breach]

depends what you need a GUI for

good luck making one in C though I guess

[bitter rune]

I can actually tell you let me look at it

It's based on this (keep in mind I don't want answers just guidance)

Draw a customer-input screen for a utility company. What information should be
captured? In what order should the fields appear? Keep in mind that
programmers would need to know database structure for their screens to be
useful.

[wet breach]

programmers generally shouldn't need to know database structures, this is why DB Administration is a thing of its own

it is the job of a DBA to ensure the programmers don't need to worry about the structure just the information in how to obtain the data they need or how to store it

[bitter rune]

They want to teach you a little bit of everything this course branches out in multiple directions, everyone in the college has to do this course if they are doing anything IT related

[wet breach]

I guess doesn't change the facts though

as far as customer input screen goes, this is a screen for the customer?

or a screen to display customer related stuff?

[bitter rune]

That's part of it it's purposely vague it says this and then underneath says give a hierarchy chart and pseudocode or flowchart after answering the questions

[wet breach]

interesting

[bitter rune]

So far I've aced every programming task each week I don't p!an on this week being any different just first time I don't know how to do anything in advanced

[proud badge]

does a json lookup from an api website cause lag? whenever I do it my server has insane lag spikes

I'll make it async rn to see if it helps

[eternal oxide]

on teh main thread it's bad

[proud badge]

Ok

[lost matrix]

Yes. Any IO creates horrible lag.
You have to realize that your code blocks other plugins and the entire minecraft server.
A tick has 50ms. A web request can take several 100ms. This means you block the game for a very long times, causing lag.

[proud badge]

also what does IO stand for

[lost matrix]

https://www.spigotmc.org/threads/guide-to-async-io.623371/
This could help

[eternal oxide]

input output

[proud badge]

yes I read that when I was working on my plugin that uses coreprotect API

[lost matrix]

From the post ^

[proud badge]

what do I replace "this" with if it isn't in my main class?

[eternal oxide]

?di

[undone axle]

Guide to dependency injection: https://www.spigotmc.org/wiki/using-dependency-injection/

[proud badge]

ok thanks

[bitter rune]

Does something like drawRectangle() work in Minecraft? Where would this image be placed? In the game or on the screen

[eternal oxide]

no

[proud badge]

define rectangle, you mean like a worldedit one?

in blocks

[eternal oxide]

drawRectangle would be a rendering method. The server has no render

[bitter rune]

No it's animation I'm learning very vague concepts that don't work in every language

[smoky oak]

well minecraft is rather limited in it's GUI stuff
you have:

1. Resource pack overlays
2. Boss bars
3. Title cards
4. scoreboard
5. Inventory GUIS
   and thats about it

[bitter rune]

If you wanted to add stuff this is where modding comes in? Instead of plugins

[lost matrix]

Primitives are usually drawn by using the GPU. The most common approach is a wrapper for OpenGL bindings.
It can be really complicated. Swing from Java has some nice utility methods for drawing on a canvas. For C it can be a bit more tricky.

[young knoll]

Yes

[bitter rune]

Appreciate the info, was going to mess with it in Minecraft but I've never touched mods before, and not ready to do complicated things

[smoky oak]

yesnt, you can do a LOT with resource packs + plugins

depends on what ur doing tbh

[icy beacon]

Actionbar also

Can be manipulated to an extent

[bitter rune]

Have a goal over break to create a GUI that plays an animation nothing big but stuff I never touched before (not inside Minecraft, another language)

[proud badge]

ehh did I do it right? (heesewhois is the main class)

and the async task is in a different class

[smoky oak]

i included that in title cards

le shrug

[smoky oak]

iirc you need the instance of your main class, not a new one

[proud badge]

asking me to insert new

[smoky oak]

yea cuz that isnt your instance

thats your class constructor without new

you have to either cache your main instance or get it via PluginManager

[bitter rune]

Looking at my options looks like I want c++ with Qt to accomplish this, and I want Python with tkinter

[proud badge]

ima just ask chatgpt

[icy beacon]

Ah, right, my bad

[proud badge]

Anyone know how could I check which velocity proxy a player is connecting from?

I have a dual proxy setup

[proud badge]

How could I import my HashMap from class A to class B?

I cant seem to figure it out, chatgpt doesnt say

Or I dont understand what its saying

[lost matrix]

?di

[undone axle]

Guide to dependency injection: https://www.spigotmc.org/wiki/using-dependency-injection/

[lost matrix]

PS: You should never transfer maps (or any other collection) between classes

[proud badge]

Oh

Ok

[lost matrix]

Never make them public, never create getters or setters for them

[proud badge]

so I should transfer my command to my class with the hashmap?

[lost matrix]

No you should create one manager class which holds this hashmap. Then write proper methods to manager this map.
In the end you can pass around your manager class and use its methods.

[lost matrix]

Here is an example

public class PlayerDataManager {
  
  private final Map<UUID, PlayerDataStorage> playerDataStorageMap = new HashMap<>();
  
  public PlayerDataStorage getPlayerDataStorage(UUID uuid) {
    return this.playerDataStorageMap.get(uuid);
  }
  
  public void addPlayerDataStorage(PlayerDataStorage data) {
    this.playerDataStorageMap.put(data.getUUID(), playerDataStorage);
  }
  
  public void removePlayerDataStorage(UUID uuid) {
    this.playerDataStorageMap.remove(uuid);
  }
  
}

public class PlayerDataListener implements Listener {

  private final PlayerDataManager playerDataManager;

  public PlayerDataListener(PlayerDataManager playerDataManager) {
    this.playerDataManager = playerDataManager;
  }

  @EventHandler
  public void onJoin(PlayerJoinEvent event) {
    PlayerDataStorage data = new PlayerDataStorage(event.getPlayer().getUniqueId());
    this.playerDataManager.addPlayerDataStorage(data);
  }

  @EventHandler
  public void onQuit(PlayerQuitEvent event) {
    this.playerDataManager.removePlayerDataStorage(event.getPlayer().getUniqueId());
  }
  
}

[native bramble]

is it possible to remove item from the server?

like what i need to do? check many events and remove item?

like from looting, trades and other?

[quaint mantle]

Mates, I'm new to the NMS development, and I am trying to conditionally remove the carved pumpkin's blurred screen effect by following a trail in the thread below.

https://www.spigotmc.org/threads/how-to-set-carved-pumpkin-as-helmet-without-carved-pumpkin-in-helmet.574715/

I built the Bukkit, CraftBukkit, and Spigot-Server and imported all the libraries, but I still can't find the ClientboundContainerSetSlotPacket like the image below.

https://imgur.com/a/XZRkUlh

I think I have missed something really important, such as deprecation. It would be really helpful to get some tips to get out of this disaster. many thanks

[chrome beacon]

?nms

[undone axle]

https://blog.jeff-media.com/nms-use-mojang-mappings-for-your-spigot-plugins/

[chrome beacon]

Also as stated in that thread you're probably better off making a resourcepack

[proud badge]

k i think ima just have the http lookup everytime I do the command instead of trying to understand this hashmap between classes stuff

[chrome beacon]

The only way to remove the pumpkin overlay is to make the client think that there isn't a carved pumpkin in that slot

[proud badge]

its async surely it wont cause lag

[chrome beacon]

go for the hashmap, it'll be a good learning experience

[proud badge]

true

[quaint mantle]

exactly. so I wanted to intercept the packet to make the client believes that there is a wearable helmet instead of a carved pumpkin in a user's helmet slot.

[lost matrix]

I would probably go for protocollib instead of nms for this

[quaint mantle]

I thought that the resourcepack method is impossible to "conditionally" display its blurring effect isn't it?

[quaint mantle]

rly sorry I am new to controlling the packet flows but can you give more explanation for your opinion?

[proud badge]

any1 know what I did wrong here? its throwing a stacktrace

[lost matrix]

ProtocolLib can listen for incoming and outgoing packets. Those packets can be modified or even removed from the pipeline.
But maybe start explaining your entire idea because there might be a better approach.

[lost matrix]

You are not passing anything to your constructor. Which means you replace pluginInstance with the object in itself (Which is always null ofc)

You cant magically pull an instance of your JavaPlugin out of thin air. You need to give it to your class when creating an instance of it.

[quaint mantle]

I made a plugin with some helmet apparels that can be held as like other items in minecraft, such as a carved pumpkin.

but the current problem is that since the apparels are inherited from a carved pumpkin so it keep displays a blurring screen for players.

[proud badge]

ok so I tried fixing it but now another error occurred

[quaint mantle]

and I wanted to hide its blurring screen basd on customModelData value

[proud badge]

ok thanks

[quaint mantle]

anyway maybe i should consider this option seriously after I try a little more with the current one I'm doing now. this nms really killing me

[proud badge]

ok the entire plugin works epic

now async

[lost matrix]

You can just remove the pumpkin overlay in your resourcepack

[grim hound]

First figure out the basics

Like what can and can't be async

[quaint mantle]

yeah but doesn't it removes the overlay from a carved pumpkin either? I wanted to remove it only from the hats I made.

[grim hound]

What was tye

Spigot item burning event

[lost matrix]

Yeah thats not really gonna happen. The player wont see his own apparel anymore, which is kinda meh.

[quaint mantle]

https://imgur.com/a/Sxv1yHr
what a temptation.

[grim hound]

How do I kick a player async?

Because a forced connection close

Does not allow for a custom feedback message

[river oracle]

why do you need to kick a player asynchronously

kicking doesn't damage server performance that much lol

making it async probably makes you worse off xD

[grim hound]

Just wondering

[grim hound]

Probably not

Cuz I'm operating on another thread already

And need to sync the kick

[river oracle]

just resync for the kick

BukkitScheduler#runTask it'll kick them the next tick

[grim hound]

.

[grim hound]

I know, those are basics

[river oracle]

this is such a micro-optimization you're going in a super round about way to do something simple for maybe if at all a marginal gain in performance

[grim hound]

Cuz a connection close can be async

So why can't a kick be?

[grim hound]

But it disallows custom feedback

[timid hedge]

Can someone please help me, so my problem is that i have opened another eclipse project in intellij, and after i have closed that and opened a new one all the depencyes are at the other projects location. How do i fix that so i dosent be at the same location?

I have an example here, all the locations are like this: D:\clients\minecraft\abaac\workspace\jars\versions\1.8.8\1.8.8.jar but it should be: D:\clients\minecraft\FC-1.8\workspace\jars\versions\1.8.8\1.8.8.jar, and it is also like that with every other dependency with mcp (the abaac is the earlier project i wrote about)

Can someone help me fix this error?
https://pastebin.com/Yd9wHiwy it's with mcp

[quaint mantle]

jesus maven clean re-install solved the problem. thanks everyone.

[proud badge]

What does the key mean in PDCs? can I just set it to random text or what exactly does it mean

[rotund ravine]

It’s your identifier for that key

[proud badge]

so like a password or something?

[lost matrix]

Its like a mapping. Key -> Value

[rotund ravine]

If you want to get the value back you would “need” the key. So sure a password

Except it’s not a secret

[proud badge]

so more like a username

[rotund ravine]

Sure it’s a key

[proud badge]

also can I not store stuff like UUID or Player in the PDC?

[lost matrix]

UUID -> Yes
Player -> You should not

You can store pretty much anything in a PDC to be honest. You just need the right PDC type.

[proud badge]

cause this doesnt work

[lost matrix]

Because spigot doesnt have such a PDC type. You would have to either use a String or create your own type.

[proud badge]

I guess I'll convert the UUID to string

[rotund ravine]

?extrapdc

?morepdc

[undone axle]

You can create custom persistent data types on your own, or use one of the many libraries available which have implemented those which match your needs. Learn about more persistent data types here: https://www.spigotmc.org/threads/more-persistent-data-types-collections-maps-and-arrays-for-pdc.520677/

[proud badge]

do I need to install some plugin for it to work or no?

or is the repository and dependency fine

[rotund ravine]

Just a dependency u need to shade

[proud badge]

ok thanks it works

[upper hazel]

can I make this code asynchronous? So that the player waits and it does not affect the server ? - https://paste.md-5.net/obumihekuh.cs

[young knoll]

Some of it

You can't load chunks or teleport async

[upper hazel]

But then, is there any point in asynchrony if you need to wait until the location is received?

[eternal night]

I mean, instead of async you can just spread this over multiple ticks

[proud badge]

ok and how could I delete a PDC? Set it to null (would that work)?

[upper hazel]

wdym

[eternal night]

like, if you only want to load e.g. one chunk per tick.
Do one check per tick

lemme find smiles post

[eternal night]

PDC#remove means you can remove a PDC from another PDC

?workdist

skill issue

?workdistro

[undone axle]

https://www.spigotmc.org/threads/guide-on-workload-distribution-or-how-to-handle-heavy-splittable-tasks.409003/

[eternal night]

lets goo

[proud badge]

Ok I assume this will remove all of the PDC related to the thing and I dont need to specify the type?

[upper hazel]

do you mean getting locations in the background?

[eternal night]

yea if you previously stored a PDC in dataContainer under the key key

that method would remove that inner PDC from the dataContainer

[lost matrix]

You should generally not compare objects with ==. This compares their memory addresses. Use .equals() instead

[proud badge]

Ok

Time to redo all of my plugins

[eternal night]

👀

how do any of your plugins work if you use == for object comparison

[upper hazel]

2 months later

[eternal night]

that shit is bound to break fast

[upper hazel]

magic

[shadow night]

Man be magicing

[young knoll]

Oops! all singletons

[shadow night]

Holy fuck

How

[river oracle]

Merry lynxmas

[eternal night]

Merry Milesmas

[river oracle]

Doesn't work as well

[eternal night]

feels like your fault tbh

[quaint berry]

Can anyone help on how to just send basic chat messages in 1.20.1? Or at least how to use component builders for it?

[river oracle]

Player#spigot()#sendMessage to send components
new ComponentBuilder() for a new component builder

More component methods coming soon ™️

[quaint berry]

ComponentBuilder builder = new ComponentBuilder();

This requires importing a couple dozen methods

[worldly ingot]

I'll update it when 1.20.3 drops if I have time

[river oracle]

Importing isn't a big deal xD

[river oracle]

I smell paper

[quaint berry]

Correct

[river oracle]

This isn't the place mate

discord.gg/papermc

[shadow night]

And that is an INCORRECT ANSWER

[quaint berry]

I assumed there wasn't much of a difference?

[river oracle]

Much difference

[shadow night]

There's too much of a difference

[quaint berry]

Oh.

I'm presuming spigot plugins work on paper natively?

[river oracle]

Yes

[shadow night]

Well, they should

[river oracle]

But paper plugins don't work on spigot

[quaint berry]

Oh ok

[shadow night]

But paper is kinda... Paper

[pseudo hazel]

thats not an actual answer

its just that paper added a lot of extra stuff, making it very hard for us to suggest the right thing to do

[shadow night]

Well, there is a chance a spigot plugin may not work on paper for whatever paper reason

[river oracle]

Nein sir no breaking changes yet

[pseudo hazel]

so if you are planning to just develop for paper, you should use their server as they know more of whats going on

[shadow night]

Is it possible that one of the patches paper does to vanilla could somehow change the behaviour of a spigot plugin?

[eternal oxide]

Paper also behaves differently in certain situations. If you dev on Spigot we can help. If you dev on Paper we can;t be certain an issue is not caused by Paper. So advise is to dev on spigot to get help here.

[river oracle]

If you rely on some bug yeah but that's on you for relying on a bug for your plugins function

[shadow night]

Well, there are some bugs that are considered features by players or mojang ig

[proud badge]

Should I register my NamespaceKey inside or outside of the event/command?

[eternal oxide]

Yes somethings behave differently in Paper, like entities through portals.

[shadow night]

Oh what

[pseudo hazel]

I mean paper does a lot of optimizations so that shouldnt be surprising

[vague swallow]

Does anyone have an idea why player.isBlocking() doesn't return true even if the player is blocking with a shield?

[vague swallow]

Did I hear someone saying Paper?

[worldly ingot]

It should but it's worth noting that it only returns true if the shield is fully up

isHandRaised() will return true even if the player only just recently clicked block, but it takes like 0.5 seconds before isBlocking() will actually return true

[topaz kestrel]

How can I change this to a annotation which checks it all for me:

MenuRows menuRows;
        try {
            menuRows = MenuRows.valueOf(rows);
        } catch (IllegalArgumentException exception) {
            this.logger.warning("Rows for \"" + menuName + "\" menu is invalid!");
            return null;
        }```

To this:
```java
@Catch(exception = IllegalArgumentException.class)
@Log("Rows for \"" + menuName + "\" menu is invalid!")
MenuRows menuRows = MenuRows.valueOf(rows);```

[eternal night]

[worldly ingot]

You don't have to use annotations for everything :(

[topaz kestrel]

I want to check if that enum exists

[shadow night]

Can't you like check things before

[eternal oxide]

@WritePluginALLInAnnotations```

[eternal night]

You'd have to write an annotation processor which is fun

[river oracle]

Annotations are evil

[topaz kestrel]

why? they look so cool

[worldly ingot]

You get over that quickly

[shadow night]

Only sometimes

[pseudo hazel]

java was not meant for this smh

probably*

[shadow night]

Java was meant for TVs and you're writing plugins in it

[rotund ravine]

Annotations are devilish

[topaz kestrel]

Can you guys help please instead talking what Java was made for?

[river oracle]

Anyways you'll need an annotation processor iirc you can do this with a maven or gradle plugin or just a jar file idealistically it searches for your annotations and replaces it with code

Beyond that no one here will be of much help seeing as annotation proccessors aren't an easy ask

[shadow night]

And most people here probably do programming as a hobby, probably

[river oracle]

Bobby

[rotund ravine]

Google “annotation processor java” or smth

[shadow night]

Fuck

[eternal night]

I mean, the help here is "don't write custom annotation processors"

[pseudo hazel]

programming as a hobby is no excuse to know nothing

[river oracle]

Factz

Get smarter broda

[shadow night]

A excuse to not know annotation processors tho

[pseudo hazel]

well the excuse would be that I have never tried something like this so I wouldnt know how to do it

whether it is my job or not

[shadow night]

Yes

[lost matrix]

An annotation itself cant do anything. Annotations are simply meta information you can give to components.
What is your general idea on what this Annotation is supposed to solve.

[shadow night]

Like, why would I write an annotation processor if everything works without annotations

[eternal night]

Given you can implement pretty much this exact same concept in like, an interface and a static method

annotation processor is just the wrong tool for the job

[topaz kestrel]

Just instead of try/catching the enum to check if that enum exists, do a quick annotation on variable to do that for me.

[eternal night]

I mean, you can google annotation processors

and go down that path

its a complete waste of your time

[river oracle]

This can be done with a fromString method that returns null with a preconditions statement

You're way over thinking this

[hazy parrot]

Btw this looks like local variable, afaik you can't annotate that

[pseudo hazel]

why cant you write a simple function for this though

[lost matrix]

Hm. Do you want to generate code based on your annotations or do you want another class to read over your fields and
check properties based on annotations?

[proud badge]

Huh why isnt the target file being created when I package the plugin?

[eternal night]

the folder might be there

your IDE just might not show it

[proud badge]

hmm weird

it is there I checked

ok i restarted it its back now

What is the event for removing items from an armour stand (and adding)? I tried this and didnt work (the DataType.UUID is definitely true)

[pseudo hazel]

and a print or something does not show up?

[topaz kestrel]

I want to generate code based on my annotations

[proud badge]

This E does not get printed

when I add/remove items from the armour stand

[topaz kestrel]

I think you have to use EntityInteractAtEntityEvent

iirc

[lost matrix]

Alright, then you need to write an annotation processor. If you are pretty motivated and have some free time, then you might be able to get this
running in 1-2 weeks. Otherwise it will def take longer. So be prepared.

[topaz kestrel]

Are you serious? 2 weeks? for a simple annotation?

[eternal night]

Annotations are literally not meant to generate code

you are trying to abuse a system that is there for pure metadata for code generation

they are not macros if you come from a language that has those

[lost matrix]

*If you have a lot of experience with java
Otherwise i can assure you that it will take longer

[topaz kestrel]

I mean I don't know how to do that. It seems hard to create. Is there any source on github for me to get inspired or something so I can write it easier?

[chrome beacon]

https://www.baeldung.com/java-annotation-processing-builder

[lost matrix]

https://github.com/projectlombok/lombok

[chrome beacon]

Oh no don't look at Lombok

Lomboks code is actually a mess

[eternal night]

yea really don't look at lombok

[topaz kestrel]

oh, lombok! I actually use lombok on my every single project.

[eternal night]

[topaz kestrel]

What's the matter with it?

[eternal night]

the codebase is terribly complex

[lost matrix]

I wouldnt say its a mess. It is just really a lot.

[bitter rune]

sound slike spaghetti code

[eternal night]

it does a LOT, if you have 0 idea on annotation processors, lombok is not the project to learn from

follow some bare bone guide

or

write a single damn helper function that does this whole thing for you

[topaz kestrel]

lol

[lost matrix]

Yeah i also feel like an annotation processor would be completely wasted on checking if an enum value exists...

[topaz kestrel]

I thought It would be cool if I use an annotation for a variable instead of try/catching it, however, I might regret now. try/catch exceptions are kinda messy and its syntax is so boring tbh.

[river oracle]

Don't even use try catch here this can be done without it if you make your own custom fromString method

[lost matrix]

One example:

  public static <T extends Enum<T>> T getSafeEnumValue(Class<T> enumClass, String name) {
    try {
      return Enum.valueOf(enumClass, name.toUpperCase());
    } catch (IllegalArgumentException e) {
      // Do whatever you want here, like logging the wrong name.
      return enumClass.getEnumConstants()[0];
    }
  }
  
  Particle particle = getSafeEnumValue(Particle.class, "test");

[topaz kestrel]

but the method itself still uses try/catch

[proud badge]

When i right click a pig it gets executed, but when I right click an armour stand it doesnt

Are armour stands not entities or something?

[river oracle]

Don't use valueOf for implementation 🔥🔥

[topaz kestrel]

then what to use?

[lost matrix]

Try the PlayerInteractEvent

[proud badge]

Cannot use getRightClicked then

[river oracle]

Idk how your enum is set up but a switch with a default seems desirable here

[twin venture]

Hello there , iam trying to remove an arena by its uuid from the map

[15:56:14 ERROR]: Error occurred while disabling game v1.0-SNAPSHOT (Is it up to date?)
java.lang.NullPointerException: null
at org.skywars.core.sync.JedisServerSync.messageServerClose(JedisServerSync.java:94) ~[?:?]
at org.skywars.game.Game.onDisable(Game.java:143) ~[?:?]

[topaz kestrel]

use event#getType() instead of event#getRightClicked()

[twin venture]

https://paste.md-5.net/fosimikoji.java

[proud badge]

exactly what I did

[twin venture]

this is my jedis part of the code

[proud badge]

ah wait no

i misread your sentence

[river oracle]

ArmorStands aren't blocks

They're entities

[lost matrix]

JedisServerSync.java line 94 pls

[twin venture]

but it can't be null cuz its already there ..

[proud badge]

Ik

[twin venture]

i already added it .-.

[topaz kestrel]

sorry but that would be a bad idea as well because everytime I add a new type I have to add it into switch too.

[river oracle]

Use a registry then

[topaz kestrel]

What do you mean?

[river oracle]

I don't have time In class atm sry

[topaz kestrel]

okay

[lost matrix]

Doesnt look like line 94 to me

[twin venture]

each server is represented by a new random uuid each time a server restart :

its , i deleted some empty lines

everything is working just fine , my only problem now is

it does not decress this by 1

when a server close

any ideas?

do i need to send a hset?

starting with server uuid?

[river oracle]

https://java-design-patterns.com/patterns/registry/#explanation this is a basic outline of what you should kinda do though its a simple example

just note you don't need a concurrent map in most cases

[lost matrix]

What you need to do is show us an exception and the corresponding code to it.

[twin venture]

when a server close decrese by 1 :

[topaz kestrel]

I believe, is just better to create a simple method and use it.

[deep herald]

anyone know why i cant import my other plugin?

[eternal oxide]

run mvn install when you build your other plugin

[hazy parrot]

Have you installed it

[deep herald]

gochu thx

[weak bear]

Hello I have a question which version do I use to minecraft 1.16.5 thx you

[lost matrix]

1.16.5

[weak bear]

Java sorry x)

which version of Java

[lost matrix]

I would go with 11 but it supports up to 16

[weak bear]

Okay but I saw that's recommended to use Java 8 that's true ?

[eternal oxide]

no

[weak bear]

Okay thx you so I think that I will use Java 11 or newer

[valid burrow]

how can i check if a location is above ground

other then checking the blocks above it

cause

[eternal oxide]

getHighestYat

[valid burrow]

thx

[eternal oxide]

if the Y is above your Y then there is a block above you

[twin venture]

hi , was able to figure out what's wrong :

[valid burrow]

on what object do i call that

[twin venture]

can it be that bcz its in another thread?

[eternal oxide]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/RegionAccessor.html#getHighestBlockYAt(org.bukkit.Location)

[valid burrow]

wtf is going on with my llamas

they always walk straight in some direction for no reason

i have a class spawmning all kinds of mobs

and llamas are the only ones behaving weird

[eternal oxide]

You smell so they are leaving

[valid burrow]

sometimes they also just spin in circles

[eternal oxide]

did you change their brain?

goals

[valid burrow]

too lazy to screen record

but these spin

[valid burrow]

nno

no nms involved

i only put an invisible wolf ontop of em

[eternal oxide]

um, tamed or wild?

[valid burrow]

wild

i mean i didnt specify

so wild ig

[eternal oxide]

they are probably scared

so trying to run away

[valid burrow]

no theyx arent they arent running away

they are walkiung ina straight line

from where they are spawned

no matter if theres a wall

or i move

they will get stuck and dont care

[eternal oxide]

change the mob from a wolf to a pig or chicken

[valid burrow]

but then it would loose its purpose

i need the wolves ai

[eternal oxide]

try it to see if their behavior changes

[valid burrow]

is their any other mob with a behaviour similar to a wolf?

like attack uppon being attacked

holy shit theres many

never realized

but now that i think about it makes sense

[weak bear]

Hey How can I get title of inventory in event InventoryClickEvent

[eternal oxide]

don't compare inventories by name

[weak bear]

how can I compare it so ?

[eternal oxide]

compare by instance

[weak bear]

okay

[eternal oxide]

I'll assume you are making a UI?

[weak bear]

Yes I use Bukkit.createInventory

[eternal oxide]

store the instance when you create the inventory

then compare to it when the player clicks

[valid burrow]

create static inventoryy if possible and compare them after

[eternal oxide]

if (yourInventory == clickedInventory)

[weak bear]

okay