help-development

[eternal oxide]

?basics

[undone axle]

Here are some links to get you started on learning Java:

• https://www.codecademy.com/learn/learn-java
• https://www.sololearn.com/learning/1068
• https://www.learnjavaonline.org/
• https://programmingbydoing.com/
• https://docs.oracle.com/javase/tutorial/java/index.html

The last one is the only official one, however some of those concepts assume that you already know a bit about programming.

[grand magnet]

Show me an example code

[glad prawn]

And your getIP return nothing. Nice.

[tardy delta]

3 commands for the learnjava thing now, nice

[lost matrix]

Is basics a less passive aggressive version of learnjava?

[eternal oxide]

yes

[lost matrix]

lul

[glad prawn]

Lmao

[remote swallow]

we had basics for a while

[tardy delta]

learnjava! is pretty aggressive

[lost matrix]

AllArgsConstructor takes all fields as parameters

*Which are not pre-initialized ofc

In which way?

[tardy delta]

= null?

[lost matrix]

@RequiredArgsConstructor only uses those fields which need to be initialized in order to construct the class.

[tardy delta]

i might aswell start to use lombok

[lost matrix]

Probably not

[tardy delta]

interesting If a sheep is within a certain distance of another sheep, it will move towards it and try to stay close to it. This distance is controlled by the "follow range" attribute, which is set to 8 blocks by default.

[calm crow]

Hey guys. Is there an easy fix for when two plugins use the same command? How do you choose which takes priority- or even change the commands? The two plugins are EpicCore and Lands-land claim plugin with the same command /chat.

[quaint mantle]

Possible to create object that implement interface on the runtime?

Any interface extend parent interface

I decided to make a server where gamemode adventure will be by default, but all the plugins that I found do not help...( and there is also an auth me plugin on the server and it resets it to 0. what should I do in this case and which plugin /datapack is needed for the automatic issuance of gm 2 when entering the server? (pls ping me)

[tardy delta]

new Interface() {
void someMethod() { return true }
};

damn chatgpt is lying so badly

[lost matrix]

Sure. Those are called anonymous classes

[quaint mantle]

I want to inject implementation to the interface on the runtime

[lost matrix]

Either use the fully qualified name /epiccore:chat or ask the devs to create alias for their commands.

[quaint mantle]

Bruh I think it was impossible.

[lost matrix]

Explain a bit more what you are trying to do.
Java is very moldable.

[tardy delta]

you want to inject method behaviour?

[lost matrix]

Doesnt the server.properties define a default gamemode? Have you tried that?

[tardy delta]

just already create an object that implements your interface and have functions (like Runnable) for each method impl

thats the most simple way, but idk what you want to achieve

[quaint mantle]

yeah

[calm crow]

thank you bunches u gave me an idea for a fix

[quaint mantle]

and how will I build?

[quaint mantle]

I have interface that has ??? methods with @sql(query="sql") annotation. So I need to inject implementation that executes sql query when method called.

[lost matrix]

What do you mean by inject? Should another plugin provide an implementation for this interface?

[tardy delta]

arent you just trying to get the value of the query annotation?

[quaint mantle]

Yea it hard to explain 😩

[tardy delta]

just give an example

[quaint mantle]

Ok

[lost matrix]

Nope i think hew wants to write a text query and let the interface execute the query.
But there is no actual implementation for that interface. He basically wants to "inject"
an implementation so that the query is actually run by usefull code. Im still trying to find
out when and from where he actually tries to "inject" the implementation so that i can recommend
either using RegisteredServiceProvider or a Factory pattern.

[tardy delta]

oh i kinda understand

[hazy parrot]

You can't

[tardy delta]

in c# you can :)

[hazy parrot]

Sql have order of keywords

[tardy delta]

well how is it supposed to know what logic it executes 🤔

sounds like abusing someone elses code

[lost matrix]

Either a factory which provides an implementation or a RegisteredServiceProvider (vault uses this)

But someone has to write the implementation

[quaint mantle]

public interface SQLController<object> {

    @Query(query = "SELECT * FROM %name% LIMIT 1;", response = RepoResponse.EQUAL_ONE)
    object findFirst();

    @Query(query = "SELECT * FROM %name% LIMIT 20;", response = RepoResponse.MORE_THAN_ONE)
    List<object> findTwenty();

    @Query(query = "INSERT INTO %name% VALUES(hello = %hello%, wassup = %wassup%;", response = RepoResponse.VOID)
    void insert();

}

Something like this.

[tardy delta]

just have common code for all those methods that executes those queries ig

then figure out whatever type of query it is aaa

[pseudo hazel]

just make a method that sends a query

it doesnt need to be complicated

[tardy delta]

im just wondering why

[pseudo hazel]

I mean it doesnt make much sense for this to be in an interface in any case

writing a query is an implementation

[tardy delta]

there are probably some restrictions

[lost matrix]

I see what you mean here. This is a concept from enterprise java. If you want to i can give a rough explanation on how
to implement this but it is very complicated.

[quaint mantle]

I see frameworks that makes database controls like this

idk

[tardy delta]

looks like spring

[quaint mantle]

Yea please explain how to implement.

[lost matrix]

Yes it looks like JPA annotations

[quaint mantle]

So how?

Or I can just use JPA?

[lost matrix]

Do you know all of these concepts:

• Classpath scanning
• Reflections
• ORMs
• Beans

[tardy delta]

bytecode injection 🙉

[quaint mantle]

ik beans and Reflections

another idk

[lost matrix]

Honestly i would just recommend you to use Hibernate

It implements the JPA standard

[quaint mantle]

ok

thanks

[lost matrix]

Looks a bit like this:

@Entity
@Table(name="STUDENT")
public class Student {
    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Long id;
    
    @Column(name="STUDENT_NAME", length=50, nullable=false, unique=false)
    private String name;
    
    // other fields, getters and setters
}

And then you can just throw your objects in a database as they are.

[quaint mantle]

Cool so I not need to implement my self 🙂

[lost matrix]

And then you can also use your @Query annotation for some custom DAOs

[tardy delta]

i tried to make something like that but reflections but it went brr

too much annotations, reflections and stringbuilders

[pseudo hazel]

how can I find out if an object isnt getting deleted

because I am making a game but everytime I start it the old instance doesnt get removed

like im used to c++ and stuff where I have to free thngs myself so idk how it works here

[tardy delta]

finalize kinda goes brr

[lost matrix]

This happens if you dont write robust code. Strongly encapsulate your objects and you will never have
problems with random references floating around.

[quaint mantle]

It deprecated I guess.

[pseudo hazel]

well

[tardy delta]

for a reason

[pseudo hazel]

so what are common pitfalls then

because idk where to look

[sterile token]

How can people code using Velocity, they api is relly unfriendly

[tardy delta]

to invoke code when an objects is getting gced now, look at the cleaner api

[tardy delta]

2nd time saying that

[sterile token]

Really?

[tardy delta]

and you sure arent on weed?

[pseudo hazel]

like how does a reference get lost anyways

[lost matrix]

Show us your code. Object deletion should not be something you have to keep in mind when writing java.

[tardy delta]

free() :(

[pseudo hazel]

there is too much to just show but I can try to give a summary

[lost matrix]

Like manually setting a reference to null is almost always a code smell.

[quaint mantle]

There no free function for java bruh.

[pseudo hazel]

so for reference I am creating a minigame plugin for bingo, and I have a "gamemanager" called GameWorldManager, in it I have a list of active games and I can add games to that list and remove them when they are done

but when I remove them they dont seem to get deleted

but just talking about this made me get an idea on something I should still check xD

[tardy delta]

java is not a low level language for a reason

[ivory sleet]

Well you have some api that allows u to callback garbage collection

[lost matrix]

Uhm... what?

[tardy delta]

oh no we summoned conclure

[quaint mantle]

Not api bruh

[tardy delta]

runn

[quaint mantle]

Runtime

[ivory sleet]

Yes

PhantomReference and WeakReference with a ReferenceQueue is provided by Java std

[lost matrix]

Use a LinkedHashMap and sort it before joining.

[ivory sleet]

(Also SoftReference)

[quaint mantle]

Idk how you creating the manager for each player or it singleton object.

[lost matrix]

Ah -.- i thought the was some hacky replacement for finalize i didnt know

[ivory sleet]

🥲

[quaint mantle]

I think we not need low level for java

It will be like c++

[tardy delta]

what

[lost matrix]

PS you can also wrap the entry set in a List<Entry<K, V>> and call Collections.sort on it with a custom comparator which sorts by value or key

[pseudo hazel]

okay nvm this is still the case

[ivory sleet]

I believe that Java should provide low level api, but similar to rust, the user should be well aware of in case they enter that type of shit

[lost matrix]

foreign memory api begs to differ

[tardy delta]

Unsafe my beloved

[pseudo hazel]

those objects are listeners so when an event happens it fires for all of them, so they must still exist

[lost matrix]

Is it still in incubation btw?

[ivory sleet]

mye or preview

One jep of it might have been released idr tbf

[eternal oxide]

You registered them with Bukkit so it's holding a reference

[pseudo hazel]

hmm

so I just unregister them then?

[eternal oxide]

yes

[tardy delta]

this is kinda fun

[pseudo hazel]

is the best place to do that when I remove them from the list? cuz afaik there are no destructors in java

[lost matrix]

Sounds like a side effect to me

[eternal oxide]

All you do is drop all references and GC will delete them

[pseudo hazel]

what about circular references

like dependency injection stuff

[tardy delta]

gc should be able to handle that

[lost matrix]

So glad i learned how to do bézier curves. They looks so smooth.

[pseudo hazel]

like I add my plugin as a variable to another class

[eternal oxide]

you drop all reference the object you want to delete

[tardy delta]

:o

[eternal oxide]

if they are listeners unregister them

then drop your references

[tardy delta]

looks like santa spawning presents mid-air

[pseudo hazel]

yeah so dropping a reference is really just removing them from whatever container they might be in

or leaving the scope

[quaint mantle]

So you did your manager Listener aswell?

[pseudo hazel]

no

it does not

[quaint mantle]

So you can show your code?

[pseudo hazel]

why?

xD

I already know what I need to do to fix it

and its too much to just show here

[quaint mantle]

Ok do it yourself :))

[mortal hare]

now i want to learn it 😦

[tardy delta]

i just want to know how to let chunk generation work on minestom

but this looks pretty good

[half bane]

Is there a function to get when a player has joined/for how long has been online?

(i cant find it)

[lost matrix]

Only this session or in total?

[half bane]

session

[tardy delta]

thats not possible right

[half bane]

oh

[pseudo hazel]

eehm actually, how do I unregister a listener?

[tardy delta]

you could always keep track of it

[tardy delta]

HandlerList.unregister(Listener) or smth

[lost matrix]

There is no info on that. You need to track that yourself.
PlayerJoinEvent -> get current time and put it in a Map<UUID, Instant>

[pseudo hazel]

oh

[half bane]

ok thanks

[pseudo hazel]

I like the consistency

[lost matrix]

Dont tell me that you have a listener for every active game...

[pseudo hazel]

well they are listeners

[lost matrix]

o.O

[pseudo hazel]

what do you suggest

making another manager?

[tardy delta]

we love managers

[lost matrix]

Registering one listener which propagates the events to every game

[lost matrix]

Yes

[pseudo hazel]

I already have like 5 of those

[lost matrix]

I sure hope that you have a GameManager

[pseudo hazel]

yes thats what I was saying earlier

thats how I add and remove games

but that one isnt a listener

[lost matrix]

Alright let me give you a minimal example. One moment.

[worldly ingot]

Ideally you want to avoid registering and unregistering listeners anywhere other than onEnable()

Every time you do that, the listeners have to be re-baked

Which isn't exactly cheap

[pseudo hazel]

okay

[spare mason]

how i can get the player that killed an speficic mob?

[worldly ingot]

LivingEntity#getKiller()

Returns a Player if killed by one, otherwise null

[pseudo hazel]

is this explained anywhere?

[ivory sleet]

Does it really have to be rebaked? Like I thought that was just to make the event invocation smoother?

(Which bukkit does once after all plugins have been loaded and enabled)

[worldly ingot]

It is. It's baked for performance reasons. But the whole thing has to get rebaked if a new listener gets added

[pseudo hazel]

like how tf am I supposed to know when to or when to not register events xD

[tardy delta]

what does re baked mean in this context?

[ivory sleet]

Tho, wouldn’t it still work fine w/o rebake after initial server load up?

Cause I know some libraries that lazily register listeners taking JavaPlugin::getProvidingPlugin and just passes it along with the listeners

[worldly ingot]

https://hub.spigotmc.org/stash/projects/SPIGOT/repos/bukkit/browse/src/main/java/org/bukkit/event/HandlerList.java#176-186

And consequently,
#register(): https://hub.spigotmc.org/stash/projects/SPIGOT/repos/bukkit/browse/src/main/java/org/bukkit/event/HandlerList.java#106-116
#unregister(): https://hub.spigotmc.org/stash/projects/SPIGOT/repos/bukkit/browse/src/main/java/org/bukkit/event/HandlerList.java#129-138

Both set handlers to null requiring a rebake

[lost matrix]

public interface ActiveGame {

  void handleDamageEvent(EntityDamageEvent event);
  void handleDeathEvent(EntityDeathEvent event);

}

public class GameManager {

  private final List<ActiveGame> activeGameList = new ArrayList<>();

  public void handleDamageEvent(EntityDamageEvent event) {
    activeGameList.forEach(game -> game.handleDamageEvent(event));
  }

  public void handleDeathEvent(EntityDeathEvent event) {
    activeGameList.forEach(game -> game.handleDeathEvent(event));
  }

}

public class GameListener implements Listener {

  private final GameManager gameManager;

  public GameListener(GameManager gameManager) {
    this.gameManager = gameManager;
  }

  @EventHandler
  public void onDamage(EntityDamageEvent event) {
    gameManager.handleDamageEvent(event);
  }

  @EventHandler
  public void onDeath(EntityDeathEvent event) {
    gameManager.handleDeathEvent(event);
  }

}

Then you will never have to unregister any listeners. All you do is remove a game from the list and it doesnt receive any events anymore.

Ugh the spam

[ivory sleet]

Ah okay

[pseudo hazel]

well yeah I guess that makes sense

I just hoped there was a more straight forward way

but this is fine

thanks

[lost matrix]

HandlerLists after someone constantly un/registers events

[pseudo hazel]

lmao

[tardy delta]

id make the gamemanager implement Listener 🙏

do private methods work for a listener?

[lost matrix]

Separation of concerns fourteen

[lost matrix]

Yes but not recommended

[tardy delta]

how so

havent really looked at the impl

[worldly ingot]

I'd personally argue it's more recommended to make them private lol. I don't want my listeners being manually called

[lost matrix]

something something reflection fkery taking longer. I looked into that back in spigot 1.12
Was something about the JIT taking longer for method invocations to get JIT compiled on private methods
because of the accessible flag

[ivory sleet]

Reflection invocation beinng reimplemented with method handles soon 😌

[lost matrix]

But i guess spigot now uses MethodHandles (?)

[tardy delta]

:o

[worldly ingot]

I don't think we do

At least I'm unaware of it if that's the case

[rare rover]

okay so im learning gradle and i dont understand how to add a module to another module?

[lost matrix]

Never bothered benchmarking it in java 17 so my assumption stems from java 1.8 and spigot 1.12 data

[tardy delta]

gradle kek

[rare rover]

like their dependency or whatever

[worldly ingot]

Instead of depending on its groupId and artifactId, you depend on project(":YourModuleName")

So compileOnly project(':foo-bar') for example

[tardy delta]

love it how my pom.xml has errors and it still compiles

[rare rover]

everytime i do that it gives me this?

[pseudo hazel]

wait so coming back to this code, why did you split up GameManager into a GameListener too?

I feel like those can just be one class

[lost matrix]

As i told fourteen: You want separation of concerns + single responsiblity
A listener has one specific purpose: Listen to events and propagate them to places where they are needed

[ivory sleet]

They can, but they lay at different levels of abstraction also. GameManager being at a higher level than your listener.

[tardy delta]

me where my VanishManager is a Listener, Reloadable and Iterable<UUID> :)

[pseudo hazel]

what do you mean by that? how is the gamemanager higher?

[tardy delta]

separated the listener tho

[worldly ingot]

What do your settings.gradle and build.gradle look like?

[ivory sleet]

Your listener is a low level class, no other classes are going to depend on it, its just a consumer and observer, whilst your GameManager is a class that other classes are going to depend on, such as listeners, command executors and other stuff.

[pseudo hazel]

like to me it looks just as concrete as the listener

[ivory sleet]

It may not seem very apparent, but in the long term, having high and low level components/classes figured out helps quite well with the structure (:

[pseudo hazel]

and with the filecount

but ig thats just an oop thing

[ivory sleet]

Yeah well if that’s an issue then it’s time to start considering the amount of files you have

Though with all due respect, that is likely not going to be a concern of yours

[pseudo hazel]

it isnt

its not too bad yet

[ivory sleet]

Sounds good :>

[lost matrix]

A project me and a buddy wrote in 6 weeks

[pseudo hazel]

lol

I was like thats not too bad

but then started scrolling

[tardy delta]

imagine crying about filecount

not my code tho

[lost matrix]

"crypto" XD

[pseudo hazel]

imaging writing a book

[tardy delta]

uh ye its a minecraft server, so ig the player encryption stuff is there

[lost matrix]

Ah makes sense

[pseudo hazel]

I mean atleast there is no utils package with like 50 random classes

[tardy delta]

HEEHEEHEE

[pseudo hazel]

nvm

wait are these separate folders from the other ones?

there is double crypto

would be a nightmare to find anything I imagine lol

[tardy delta]

wdym separate folders

[pseudo hazel]

from these ones

or was that the same screenshot but cropped differently

cant be bothered t read everything

[tardy delta]

last screen is a subfolder of the first

always fun looking at internals and seeing that half of the stuff isnt used

[pseudo hazel]

I see

on a different topic, how can I see if an Inventory is currently open?

[tardy delta]

id say getOpenInventory().getTopInv() == custom but from what i understood from Elgarl you cant

[pseudo hazel]

what objects

[eternal night]

how would objects be joined lol

[tardy delta]

Stream#reduce 💀

[pseudo hazel]

wait yes there is

its called an array

[lost matrix]

I guess StringBuilder has append(Object) which just calls toString() on the appended Object

[eternal oxide]

you can tell if a specific inventory (not Players) is open, but you can;t tell if the player has his own open

[tardy delta]

ah im bad at listening then

👍

[pseudo hazel]

so how do I check if my custom inventory instance is open?

[eternal night]

https://docs.papermc.io/paper/dev/custom-inventory-holder is always a possibility

[tardy delta]

player.getOpenInventory().getTopInventory().equals(custom)

ig

[eternal night]

or yea

[eternal oxide]

yep

[river oracle]

ew

[pseudo hazel]

oh

[eternal night]

keep track of the instances ^

[lost matrix]

I went on a half assed journey with advancement triggers. Never figured out if it actually works.

[pseudo hazel]

well nvm then, thats just as bad as looping through the inventories itself xD

[lost matrix]

Isnt there a modern resource on how to create GUIs which use the chain of responsibility pattern? 🤨

Speaking about the general idea of Map<Integer, Consumer<InventoryClickEvent>> and variations

[ivory depot]

            public void run() {
                if(Bukkit.getOnlinePlayers().contains(e.getPlayer())){
                    if(e.getPlayer().getInventory().firstEmpty()!=-1){
                        e.getPlayer().getInventory().addItem(coin.coin());

                    }else{
                        e.getPlayer().sendMessage(ChatColor.translateAlternateColorCodes('&', "&cNie masz miejsca w ekwipunku!"));
                    }
                }
            }
        }, 0L, 1200L * 1);``` I got this task, and it runs everytime when i join to server. I want to start this after specifed time and repeating this

[tardy delta]

time to write a resource then

modify the numbers

[ivory depot]

i must change delay?

[tardy delta]

the first one is delay in ticks yes

[ivory depot]

okay, thanks

[lost matrix]

I would handle this differently.
Dont create one runnable per player.
Create a single runnable which iterates over all players and start this runnable when
the server starts.

[tardy delta]

and use a lambda instead of a runnable

[lost matrix]

And use a concrete class implementation instead of an anonymous one or a lambda.

[tardy delta]

and if you dont want to get bonked by me, never instantiate bukkitrunnables unless its needed

https://media.discordapp.net/attachments/172645867570987008/971389763997290496/941134176265060372.gif

[lost matrix]

Would look like this:

public class CoinRunnable implements Runnable {

  private final CoinSomething coin;
  
  public CoinRunnable(CoinSomething coin) {
    this.coin = coin;
  } 
  
  @Override
  public void run() {
    for (Player onlinePlayer : Bukkit.getOnlinePlayers()) {
      giveCoinTo(onlinePlayer);
    }
  }

  private void giveCoinTo(Player player) {
    PlayerInventory inventory = player.getInventory();
    if (inventory.firstEmpty() != -1) {
      inventory.addItem(coin.coin());
    } else {
      player.sendMessage(ChatColor.translateAlternateColorCodes('&', "&cNie masz miejsca w ekwipunku!"));
    }
  }

}

[tardy delta]

i know you, you added the giveCoinTo to use this::giveCoinTo ;-;

[lost matrix]

XDD yes

[tardy delta]

but yet youre not doing it

[lost matrix]

But i didnt want to confuse him

[lost matrix]

Oh yeah: Your approach creates a memory leak.

[ivory depot]

yeah, i had it like this, but it was a little unfair, because players whom joined a few seconds before award gotted it

[lost matrix]

This is fixable. But if you use your approach then you need a Map<UUID, BukkitRunnable> and cancel the runnable every time a player quits.
You need to also remove the player from the map ofc.

[tardy delta]

Weak map

[ivory depot]

Okay, thanks for advices, I'll try to do it

[hard socket]

How to check if a player has an inv opened?

[lost matrix]

Any inventory or a custom one?

[hard socket]

custom

[tardy delta]

scroll a few minutes back ^^ oh

[lost matrix]

Put your custom inventories in a Set<Inventory> and check for contains() on it

*Remove them on inventory close

Something that was mentioned above as well: Custom InventoryHolders

[magic wharf]

the PlayerInteractEvent wont be triggered if i right click the air with a item (even a bow or anything), its always being cancelled before it runs. Anyone know what could causing it? If i right click a block its working without any problems

[hard socket]

I am confused but I will try

[lost matrix]

How do you determine if the event got fired or not?
Did you register the listener?

[magic wharf]

Yes, i send a broadcastmessage if its triggered and if i right click a block message getting send, right clicking the air it won't get send

[lost matrix]

Put something in both hands and tell me if you see a difference

[magic wharf]

nothing changed

[lost matrix]

Then show some code

[restive mango]

How do you get a method from a class you’ve extended from to return the object representing your current class?

[magic wharf]

Rn thats the code, cuz i just wanna check if its even triggered @EventHandler(ignoreCancelled = true)
public void onPlayerInteract(PlayerInteractEvent event) {

    Bukkit.broadcastMessage("PlayerInteractEvent triggered!");
}

[hard socket]

how do I make an Item Unstackable?
I got this code but how do i cast it to ItemStack

public void setMaxStackSize(Item item, int i){ try { Field field = Item.class.getDeclaredField("maxStackSize"); field.setAccessible(true); field.setInt(item, i); } catch (Exception e) { e.printStackTrace(); } }

[lost matrix]

@EventHandler(ignoreCancelled = true) remove this and double check if you registered the listener.

[restive mango]

Like if you have the class dirt which extends the earth, and earth has a method ‘returnSelf’ which just returns itself, how do I get that method to instead return the dirt object instead of the earth object?

[lost matrix]

object representing your current class
Are you looking for a method which returns a Class<> object?

[magic wharf]

you mean ignoreCancelled or the whole thing?

[lost matrix]

Only ignoreCancelled

[restive mango]

@lost matrix I think so

[lost matrix]

Well they are both exactly the same object

[magic wharf]

now message is send

[lost matrix]

Well then the event was cancelled before it reached your listener and you opted to ignore cancelled events 🤷

[restive mango]

Not really, the issue is when it returns, it returns as the ‘Earth’ class and NOT the ‘Dirt’ class, so I can no longer call methods unique to the dirt class.

[lost matrix]

Just add a random PDC tag to your ItemStack.

[magic wharf]

yes but i dont know why it is getting cancelled, its the only code and the only plugin

[restive mango]

If I go Dirt.returnSelf()

[hard socket]

wdym

[restive mango]

That returns an earth object

[lost matrix]

Then check with instanceof and cast your object...

[lost matrix]

Earth earth = someMethod();
if(earth instanceof Dirt) {
  Dirt dirt = (Dirt) earth;
  dirt.dirtOnlyMethod();
}

Or in newer java versions:

Earth earth = someMethod();
if(earth instanceof Dirt dirt) {
  dirt.dirtOnlyMethod();
}

And returnSelf is a useless method. Remove it.

[lost matrix]

?pdc

[undone axle]

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

[restive mango]

@lost matrix is there some way to make this generalizable so I don’t need to check with instanceof all the subclasses of Earth, though?

[pseudo hazel]

well if they all have different methods, you need to call them one way or another

[lost matrix]

How are you going to generalize this if every subclass has its own special methods??

[restive mango]

So

In reality all these subclasses just have a method called ‘run’ which they derive from a class they implement called ‘LocationGenerator’, which just does a bunch of geometry to give me a bunch of locations in particular geometric distributions. It’s not actually dirt or earth etc

The bigger problem is I’d really like to be able to set the parameters for these subclasses independently of each other, and for that to happen I need methods which return the object which I can then call those same methods with again

But those methods are in the class which I am extending for these subclasses

Really

is there some way to make this generalizable so I don’t need to check with instanceof all the subclasses?

I mean I can

It’s not a huge amount

[lost matrix]

  public static void main(String[] args) {
    List<Animal> animals = new ArrayList<>();
    animals.add(new Cat());
    animals.add(new Dog());
    animals.add(new Cow());

    for (Animal animal : animals) {
      animal.makeSound();
    }
  }

  public static abstract class Animal {
    public abstract void makeSound();
  }

  public static class Cat extends Animal {
    @Override
    public void makeSound() {
      System.out.println("Miau!");
    }
  }

  public static class Dog extends Animal {
    @Override
    public void makeSound() {
      System.out.println("Wuff!");
    }
  }

  public static class Cow extends Animal {
    @Override
    public void makeSound() {
      System.out.println("Mooo");
    }
  }

Console output:

Miau!
Wuff!
Mooo

Take a close look at this pls.

[drowsy helm]

miau????

nah

never seen anyone spell it like that

[lost matrix]

Thats how germans write it out

[drowsy helm]

germans wilding

[restive mango]

Does not help

[lost matrix]

Ok let me take a closer look at your question then

[restive mango]

Give me a bit I’ll paste code

[drowsy helm]

do you mean

casting?

[pseudo hazel]

what is lifesteal?

[eternal oxide]

plugin/game style

If you askign about a specific plugin you need #help-server

[restive mango]

public class LocationGeneratorMeta {
    public Location origin = null;
    public Integer locationNumber = 1;
    public boolean seekGround = true;
    public boolean noSolids = true;

    public List<Location> endLocationList = new ArrayList<>();


    public List<Location> getLocationlist() {
        return endLocationList;
    }

    public LocationGeneratorMeta setLocation(Location loc) {
        origin = loc;
        return this;
    }

    public LocationGeneratorMeta setPoints(Integer pnts) {
        locationNumber = pnts;
        return this;
    }

    public LocationGeneratorMeta setSeekGround(Boolean seek) {
        seekGround = seek;
        return this;
    }

    public LocationGeneratorMeta setNoSolids(Boolean slds) {
        noSolids = slds;
        return this;
    }

}

public class LocationGeneratorCircular extends LocationGeneratorMeta {

    public double outerRadius = 10;
    public double innerRadius = 0;

    public LocationGeneratorCircular setInnerRadius(double oInnerRadius) {
        innerRadius = oInnerRadius;
        return this;
    }

    public LocationGeneratorCircular setOuterRadius(double oOuterRadius) {
        outerRadius = oOuterRadius;
        return this;
    }

}

public interface LocationGenerator {

    public List<Location> run ();

    public List<Location> getLocationlist();

}

[echo basalt]

not just germans

[restive mango]

public class GenDisc extends LocationGeneratorCircular implements LocationGenerator {
    @Override
    public List<Location> run() {
        //buttload of code to return a disc of random points based on the parameters in LocationGeneratorCircular and LocationGeneratorMeta
    }

}

[lost matrix]

Alright makes sense so far

[restive mango]

I want to be able to go:

GenDisc sampleDisc = new GenDisc();
sampleDisc.setNoSolids(true).setInnerRadius(5);

the issue with that is

setNoSolids returns a LocationGeneratorMeta, which does NOT have the setInnerRadius method

[drowsy helm]

ah so you're trying to do a builder

[restive mango]

in contrast, I could go:
sampleDisc.setInnerRadius(5).setNoSolids(true);

i guess so

i dunno what that is though lol

[drowsy helm]

you need some sort of overarching class

[lost matrix]

Ok i understand you. This is a common problem for the Builder pattern. One moment ill fix it for you.

[restive mango]

danke

[drowsy helm]

Also not relevant but why are you doing some primitive and some not?

[restive mango]

because i'm a complete idiot, primarily

[drowsy helm]

if you don't need to use the method's of Integer just use int

Integer uses more mem

[restive mango]

yeah i should do that

[drowsy helm]

not really a big issue but if you're using this hundreds of times over it can help a little

[restive mango]

i do only use it once, but still, best practices

Just note, GenDisc is just one of MANY classes which all extend LocationGeneratorCircular and implement LocationGenerator

well

by many I mean like 4 lol

i guess in theory it might increase as I add more shapes

which is why im even doing this

[lost matrix]

Honestly now that i look at it: You are mixing a metric ton of different concepts into one class.
Why does your Generator extend its own meta? Shouldnt the generator have a field with its meta?

[restive mango]

you mean why does GenDisc extend it? Or why does LocationGeneratorCircular extend it?

[lost matrix]

Both make little sense

[drowsy helm]

i feel like all of it could be consolidated into a singular class

[lost matrix]

Well for the Circular i can understand it.

[drowsy helm]

rather than having 2 separate classes

[lost matrix]

Alright let me scrap the GenDisc part and write something type safe for your meta.

[restive mango]

There is also a LocationGeneratorSegment which extends LocationGeneratorCircular and is only used for cones and pieces of discs; it requires, in addition to the variables listed above, a vector for direction in space to point the segment and an angle which the segment takes up.

GenDisc extends it because there is also a GenSphere

[lost matrix]

Here is the solution:

public class LocationGeneratorMeta<SELF extends LocationGeneratorMeta<?>> {

  private final Class<SELF> runTimeType;
  public Location origin = null;
  public Integer locationNumber = 1;
  public boolean seekGround = true;
  public boolean noSolids = true;
  public List<Location> endLocationList = new ArrayList<>();

  public LocationGeneratorMeta(Class<SELF> runTimeType) {
    this.runTimeType = runTimeType;
  }

  public List<Location> getLocationlist() {
    return endLocationList;
  }

  public SELF setLocation(Location loc) {
    origin = loc;
    return runTimeType.cast(this);
  }

  public SELF setPoints(Integer pnts) {
    locationNumber = pnts;
    return runTimeType.cast(this);
  }

  public SELF setSeekGround(Boolean seek) {
    seekGround = seek;
    return runTimeType.cast(this);
  }

  public SELF setNoSolids(Boolean slds) {
    noSolids = slds;
    return runTimeType.cast(this);
  }

}

public class LocationGeneratorCircular extends LocationGeneratorMeta<LocationGeneratorCircular> {

  public double outerRadius = 10;
  public double innerRadius = 0;

  public LocationGeneratorCircular() {
    super(LocationGeneratorCircular.class);
  }

  public LocationGeneratorCircular setInnerRadius(double oInnerRadius) {
    innerRadius = oInnerRadius;
    return this;
  }

  public LocationGeneratorCircular setOuterRadius(double oOuterRadius) {
    outerRadius = oOuterRadius;
    return this;
  }

}

[restive mango]

public LocationGeneratorCircular() {
super(LocationGeneratorCircular.class);
}

[lost matrix]

Hm?

[lost matrix]

Ok but they should not extend their meta.
This is the cleaner solution:

public class GenDisc implements LocationGenerator {
  
  private final LocationGeneratorCircular meta;

  public GenDisc(LocationGeneratorCircular meta) {
    this.meta = meta;
  }

  @Override
  public List<Location> run() {
    // use meta instead of "this"
  }

}

[undone axle]

CafeBabe Help Menu

*Red V3*

**__Admin:__**

selfrole Add or remove a selfrole from yourself.

**__Cleanup:__**

cleanup Base command for deleting messages.

**__Core:__**

embedset Commands for toggling embeds on or off.
info Shows info about CafeBabe.
licenseinfo Get info about Red's licenses.
mydata Commands which interact with the data CafeBabe has about...
set Commands for changing CafeBabe's settings.
uptime Shows CafeBabe's uptime.

**__Downloader:__**

findcog Find which cog a command comes from.

**__Mod:__**

names Show previous names and nicknames of a member.
userinfo Show information about a member.

**__ModLog:__**

listcases List cases for the specified member.
reason Specify a reason for a modlog case.

**__Permissions:__**

permissions Command permission management tools.

Type ?help <command> for more info on a command. You can also type ?help <category> for more info on a category.

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/

[hazy parrot]

?blockpdc

[undone axle]

Learn about CustomBlockData here:
https://www.spigotmc.org/threads/custom-block-data-persistentdatacontainer-for-blocks.512422/

Instance owned by

md_5#0001

Python

3.8.10

discord.py

1.7.3

Red version

3.4.18

About Red

This bot is an instance of Red, an open source Discord bot created by Twentysix and improved by many.

Red is backed by a passionate community who contributes and creates content for everyone to enjoy. Join us today and help us improve!

(c) Cog Creators

Bringing joy since 02 Jan 2016 (over 2610 days ago!)

[hazy parrot]

@bold vessel

[bold vessel]

Thx

[solar mauve]

i spawned an arrow

and i couldn't pick it up

and there is no functions in Arrow interface in order to that

what should i do?

ok, i know, but bedwars must be developed in 1.8, and there is no other way to this, because its lightweight and anticheats are stablizied with that + pvp, im using paper 1.8

[bold vessel]

Som1 know why this isnt working ?

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

[restive mango]

@lost matrix why cant they extend their meta?

[drowsy helm]

public abstract class LocationGenerator<E extends LocationGeneratorMeta> {

    public abstract List<Location> run(E meta);
    public abstract List<Location> getLocationlist();
}

public class LocationGeneratorMeta {
    public boolean noSolids = true;

    public LocationGeneratorMeta setNoSolids(boolean slds) {
        this.noSolids = slds;
        return this;
    }

}

public class CircularMeta extends LocationGeneratorMeta{
    public double outerRadius = 10;
    public double innerRadius = 0;

    public CircularMeta setInnerRadius(double oInnerRadius) {
        innerRadius = oInnerRadius;
        return this;
    }

    public CircularMeta setOuterRadius(double oOuterRadius) {
        outerRadius = oOuterRadius;
        return this;
    }
}

public class CircularGenerator extends LocationGenerator<CircularMeta>{
    @Override
    public List<Location> run(CircularMeta meta) {
        return null;
    }

    @Override
    public List<Location> getLocationlist() {
        return null;
    }
}

@restive mango how about something like this where generator takes an instance of meta which has to be of specific type

rather than having it extend a meta

[bold vessel]

Som1 know why this isnt working ?
https://paste.md-5.net/keyekudero.java

[lost matrix]

Its a very dirty design. Its like a Wheelbarrow extending Dirt. It makes no sense.

[drowsy helm]

it's not a method of BlockDAta

[bold vessel]

what should i use ?

[drowsy helm]

have to get TileState iirc

[tender shard]

it's because BlockData does not implement PersistentDataHolder

[lost matrix]

This sadly doesnt solve the abstract builder pattern problem.

[tender shard]

if you want to have a PDC per block:

?blockpdc

[undone axle]

Learn about CustomBlockData here:
https://www.spigotmc.org/threads/custom-block-data-persistentdatacontainer-for-blocks.512422/

[dense falcon]

package fr.program;

import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;

import java.util.Arrays;

public class ConstructorCommands extends Command {

    private final CommandExecutor executor;

    public ConstructorCommands(String name, String description, CommandExecutor executor, String... aliases) {
        super(name, description, "", Arrays.asList(aliases));
        this.executor = executor;
    }
    @Override
    public boolean execute(CommandSender sender, String commandLabel, String[] args) {
        return executor.onCommand(sender, this, commandLabel, args);
    }
}

``` How can I set up a permission in my constructor for cmds?

[lost matrix]

Permissions are defined in the plugin.yml
Alternatively you can check if the CommandSender has a certain permission in your execute method.

[tender shard]

just call "this.setPermission(...)" in the constructor

[lost matrix]

Oh hes extending the bukkit Command...

[dense falcon]

There is a permission class?

[tender shard]

there is

[drowsy helm]

java annoying

[tender shard]

but setPermission takes a string

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/command/Command.html#setPermission(java.lang.String)

[dense falcon]

Ah ok, so the name of the permission?

[tender shard]

yes

[dense falcon]

Like a normal permission in plugin.yml.

Alright thanks.

[tender shard]

np

[solar mauve]

public void d(EntityHuman entityhuman) {
        if (!this.world.isClientSide && this.inGround && this.shake <= 0) {
            ItemStack itemstack = new ItemStack(Items.ARROW);
            if (this.fromPlayer == 1 && entityhuman.inventory.canHold(itemstack) > 0) {
                EntityItem item = new EntityItem(this.world, this.locX, this.locY, this.locZ, itemstack);
                PlayerPickupItemEvent event = new PlayerPickupItemEvent((Player)entityhuman.getBukkitEntity(), new CraftItem(this.world.getServer(), this, item), 0);
                this.world.getServer().getPluginManager().callEvent(event);
                if (event.isCancelled()) {
                    return;
                }
            }

[... more]

nvm, found it, "this.fromPlayer"

[lost matrix]

https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/entity/AbstractArrow.html#setPickupStatus(org.bukkit.entity.AbstractArrow.PickupStatus)

setPickupStatus()

[solar mauve]

thats 1.19.3, i said 1.8

[lost matrix]

?1.8

[undone axle]

https://howoldisminecraft188.today/

[solar mauve]

i already know about hat, but thanks

[solar mauve]

and i already mentioned the reason

[lost matrix]

?whereami

[undone axle]

https://cdn.discordapp.com/attachments/864180468680360027/944415049462714469/whereami.mp4

[solar mauve]

ok thank you, funny haha

tnx

[small hawk]

Hey @lost matrix can i send u part of my code in DM, i have one question and you are like a boss? If u have a second ofc.

[lost matrix]

Use ancient software -> Live with the consequences
You probably need to find out what NBT tags the Arrow has in 1.8
and then change them using NMS or Reflections.

[lost matrix]

You can send it here if you want. There are a lot of "bosses" around.

[solar mauve]

nbttagcompound.setByte("pickup", (byte)this.fromPlayer);

thank you, it did the trick

[restive mango]

@lost matrix not sure this'll work tbh

because locationgeneratorcircular wouldn't return locationgeneratorsegment when its methods are called IF it is a segment

thanks for trying though

[rare rover]

anyone got a good color method?

for mc colors and hex?

[small hawk]

Mini Messages API ^.^

[rare rover]

yes but that requires <gray> or <gradient:red:green>

which most people dont know

im using it for a config

so

[bold vessel]

What can i use if storeditem key isnt in persistence ?

And i imported it

[small hawk]

Well , so make quick tutorial in config as commented section

[lost matrix]

This returns a NamespacedKey. What even is a StoredItemKey?

[rare rover]

true

[restive mango]

Anyone else know how to make it so a class can return itself or a class extended from itself?

[lost matrix]

Your design is flawed. What ive sent you is the maximum you can do.

[tender shard]

probably nothing, looks like they wanna declare a new variable without giving it any type

[lost matrix]

Average Python dev

[tender shard]

or php

lol

$myvar = whatever()

[restive mango]

hm

oh

figured it out

i'll just pass the class back in every method and then cast it based on what you pass back

[lost matrix]

Fk i got a meme prepared for when php comes up and now i cant find it

Anyways. php bad

[tender shard]

https://tenor.com/view/php-gif-24572089

[lost matrix]

lol

[drowsy helm]

php is great you guys are haters

[lost matrix]

You go explode your variables

[tender shard]

everyone_knows_that_PhpSucks()

average naming scheme for php default methods

[drowsy helm]

$stmt->bind_param("ssssisssi", $order_firstname, $order_lastname, $order_notes, $order_phoneno, $order_amount, $addr_address, $addr_suburb, $addr_postcode, $order_vegan);

check out this badboy of a method

array index out of bounds

[lost matrix]

Check your array lenght before accessing it

[dense falcon]

Yeah I am stupid 🤣.

[restive mango]

    public <T extends LocationGeneratorCircular> T setInnerRadius(Class<T> cls, Object obj, double oInnerRadius) {
        innerRadius = oInnerRadius;
        return cls.cast(obj);
    }

Solution for those interested

[drowsy helm]

extra param 😦

[lost matrix]

Just pass T obj and leave the class

    public <T extends LocationGeneratorCircular> T setInnerRadius(T obj, double oInnerRadius) {
        innerRadius = oInnerRadius;
        return obj;
    }

Which makes the parameter utterly useless because the caller has it already.

Which results in

    public void setInnerRadius(double oInnerRadius) {
        innerRadius = oInnerRadius;
    }

[drowsy helm]

sort of ruins the point of a builder

why use it if you're just gonna pass the builder obj through a param anyway

[restive mango]

decreases the amount of variables

[lost matrix]

No it doesnt

Literally the same

[restive mango]

well originally i had 1 big class which stored variables for every possible shape

[lost matrix]

That alone sounds like a nightmare

[restive mango]

yeah

so this is a huge improvement

by the way 7

[tardy delta]

wheres 6

[restive mango]

nvm

[bold vessel]

Som1 know why this isnt working ?
https://paste.md-5.net/emanewofub.java

And explide me how to fix it

[restive mango]

poor lad

[lost matrix]

alex explained it to you already

[restive mango]

well

now that i have the easy solution to rely on when i give up

i should think more about how to satisfy smile and buoobuoo

[drowsy helm]

Aesopian it's possible if you only want one layer of inheritance for meta

[restive mango]

yeah, so, i know

i did think about that

[bold vessel]

yeah but i dont understand

what should i do

[restive mango]

the issue is that this would add the 'angle' and 'orientation' parameters to the LocationGeneratorCircular class

public class LocationGeneratorSegment extends LocationGeneratorCircular {

    public double arcAngle = 360;
    public Vector orientation = new Vector(0.1, 0, 0);

    public LocationGeneratorSegment setPointer(Vector orientation) {
        this.orientation = orientation;
        return this;
    }

    public LocationGeneratorSegment setAngle(double arcAngle) {
        this.arcAngle = arcAngle;
        return this;
    }



}

I have this too, you see

[drowsy helm]

right

[restive mango]

For segments of circles or spheres.

[drowsy helm]

yeah it's just a java limitation really

sort of sucks

[icy sage]

I'm setting lore on an item and it doesn't show up

        ItemMeta meta = item.getItemMeta();
        assert meta != null;
        meta.setDisplayName(name);
        meta.setLore(desc); 
        item.setItemMeta(meta);

[restive mango]

I could do the obj return strategy, though

It's just fucking ugly

[lost matrix]

BlockData has no PersistentDataContainer. If you use alex's API then this is the usage:

[dense falcon]

How can write in configs? 🤔

[small hawk]

Show us, how u add up lore to the meta

[lost matrix]

Any console errors?

[icy sage]

wdym?

[icy sage]

nope

[bold vessel]

can i send me the link of this docs

pls

[restive mango]

wait

[icy sage]

ok nvm

[lost matrix]

Add a debug message after item.setItemMeta and see if it even gets called.

[lost matrix]

https://www.spigotmc.org/threads/custom-block-data-persistentdatacontainer-for-blocks.512422/

[icy sage]

my list was empty, wrong config key

[lost matrix]

classic

[drowsy helm]

have you considered using Lombok

it's hacky but it will work

[small hawk]

Configs 💀

[lost matrix]

https://www.spigotmc.org/wiki/config-files/

[restive mango]

damn

[drowsy helm]

@SuperBuilder
@Getter
@Setter
public class LocationGeneratorMeta{
    private boolean noSolids = true;

}```
```java

@SuperBuilder
@Getter
@Setter
public class CircularGenerator extends LocationGeneratorMeta{
    private double outerRadius = 10;
    private double innerRadius = 0;
}

[restive mango]

@drowsy helm havent used Lombok before

[drowsy helm]

        CircularGenerator circularGenerator = CircularGenerator.builder().innerRadius(1).noSolids(true).build();```

results in that

[dense falcon]

Thanks :).

[drowsy helm]

lombok is great but can cause some issues at compile

[restive mango]

Is Lombok good?

oh

[drowsy helm]

i use it all the time

but some people dont like it

but it will solve your issue

[restive mango]

does it cause any lag

[drowsy helm]

no lol

it's an annotation framework

that generates code on compile time

[restive mango]

does the code it generates cause lag

[drowsy helm]

no

[restive mango]

okay

[drowsy helm]

how would it cause lag?

[restive mango]

idk

[drowsy helm]

@Getter
@Setter
public class MyClass{
  private int myInt;
}

on compile becomes

public class MyClass{
  private int myInt;

  public int getMyInt(){
    return myInt;
  }

  public void setMyInt(int myInt){
    this.myInt = myInt;
  }

it saves heaps of space coding

but like i said alot of other devs don't like it

but their SuperBuilder annotation would solve your issue

[lost matrix]

lombok adds a Thread.sleep(10) in every getter to delay them by 10ms
This makes the server lag big time

[drowsy helm]

lmao

[restive mango]

oof

i cant use it then

[winged anvil]

@lost matrix were you able to figure out how that one product was able to create those UI's with the buttons?

[icy sage]

        fileConfiguration.addDefaults(CONFIG_DEFAULTS);
        if (!configFile.exists()) {
            fileConfiguration.options().copyDefaults(true);
            saveConfig();
        }

Is this a bad practice
I feel like this is better than using saveDefaultConfig

[winged anvil]

these

[lost matrix]

They use inventories for the clicks. You can decrease the bar size between the upper and lower inventory so
that you have a 9x9 area

[drowsy helm]

i had a resource on the forums for that specifically

all the github links are fucked tho

[restive mango]

hm

this seems to work

possibly

let us continue to test...

[winged anvil]

werent the buttons something special? like they had their own click region that wasnt a collection of slots

[vivid hill]

Which method is better?
- update the scoreboard every x seconds
- update it only when it should get updated

[lost matrix]

Nope. Looked to me as they had the same constraints as inventories

[drowsy helm]

that isnt possible lol

its all snapped to a grid

[restive mango]

ah

nope

buoo

you lied

[drowsy helm]

last option is best

how?

[restive mango]

doesnt let me access build methods from the class it is extended from

[vivid hill]

ok thank you

[drowsy helm]

wdym?

[restive mango]

nvm

i lied

LOL

this

does seem to work though

...why does this work

what does superbuilder do, @drowsy helm ?

what... form of magic is this?

hmm... . . . . . . .

[drowsy helm]

same as the @Builder annotation but works with inheritance

[restive mango]

sussy....

does it

cause

lag?

[drowsy helm]

make sure you don't have your own ubilder methods tho

yours will overwrite lombok's

[restive mango]

why didn't @lost matrix suggest this?

i feel like i'm purchasing crack.

there is too much upside.

[drowsy helm]

because it's sort of hacky

depending on who you ask

i love lombok

others dont

[restive mango]

what does that MEAN!

why is it hacky...

[drowsy helm]

because the code is generated on compile

[restive mango]

honestly

it seems great

[drowsy helm]

it is

[restive mango]

and i'll probably use it

but

i just really want to know what 'superbuilder' /does/

like what is its mechanism of action

[drowsy helm]

like how it works behind the scenes?

or

[restive mango]

yeah

i just really want to rule out it causing more lag

the entire reason im doing this is because my math causes lag

[drowsy helm]

lombok doesn't cause lag

[restive mango]

if you say so!

[drowsy helm]

it maybe makes your compile 10 milliseconds longer

thats the only lag you will experience

[restive mango]

yeah im fine with compile lag

id compile for a day if it saved the server milliseconds

[kind hatch]

Lombok only affects the compile stage. It just adds the methods that you are not adding by using Lombok. Like the getters and setter methods

[drowsy helm]

these 2 pieces of code

compile into the same thing

they are both exactly the same at runtime

lombok just simplifies it on the developer's end to make it more readable

[restive mango]

actually

buoo

one thing i did notice

wait

i cant post pictures

sigh...

[glad prawn]

Verify dude

[restive mango]

can i build something WITHOUT assigning every variable?

[kind hatch]

?img

[undone axle]

Not verified? Upload screenshots here: https://prnt.sc/

[restive mango]

like

[drowsy helm]

egsblain

[rotund ravine]

???????

[kind hatch]

Put them in the global scope and never access them?

[restive mango]

On IntelliJ, it now says 'Variable initializer is redundant'.

[kind hatch]

About the only way unless you bypass the compiler checks.

But then you’ll get nothing done.

[restive mango]

@SuperBuilder
@Getter
@Setter
public class LocationGeneratorMeta {
    public Location origin = null;
    public Integer locationNumber = 1;
    public boolean seekGround = true;
    public boolean noSolids = true;

    public List<Location> endLocationList = new ArrayList<>();


//    public List<Location> getLocationlist() {
//        return endLocationList;
//    }
//
//    public LocationGeneratorMeta setLocation(Location loc) {
//        origin = loc;
//        return this;
//    }
//
//    public LocationGeneratorMeta setPoints(Integer pnts) {
//        locationNumber = pnts;
//        return this;
//    }
//
//    public LocationGeneratorMeta setSeekGround(Boolean seek) {
//        seekGround = seek;
//        return this;
//    }
//
//    public LocationGeneratorMeta setNoSolids(Boolean slds) {
//        noSolids = slds;
//        return this;
//    }

}

when I hover over one of those variables

it goes

[drowsy helm]

make them private

[restive mango]

Variable 'origin' initializer 'null' is redundant

[kind hatch]

That’s just a warning.

[restive mango]

oh

I see

[kind hatch]

You can ignore it.

[restive mango]

ah great

because I'd like to not have to assign EVERY variable every time I build something

I want to have a few defaults

like number of locations to 1 etc.

[kind hatch]

Unless it says it’s an error and underlined in red, then you can most likely just ignore them.

The only ones that you’d want to pay attention to is dead code warnings or similar stuff.

[nimble hill]

So am i off my rocker or is this a bug in spigot?
Here is the situation:
Im trying to check when a player right clicks an Ender_Eye (and check if it has my custom data and all that)
And let me preface that im not a new developer or anything, i just want to ensure nothing has changed from 1.19.2-1.19.3 that im not heretical about.

• I can trigger my event to see whats in my hands (interact event, left click) and i get the following:
  PlayerInteractEventItemStack{AIR x 0} ItemStack{ENDER_EYE x 1} (offhand, main hand) which is correct, the main hand contains an endereye

• i can trigger the same with a different consumable like an enderpearl and get the following:
  PlayerInteractEventItemStack{AIR x 0} ItemStack{ENDER_PEARL x 1} (also correct)

Here is where the issue is:
i spend the enderpearl (right click / trigger its throw)
Enderpearl: PlayerInteractEventItemStack{AIR x 0} ItemStack{ENDER_PEARL x 1} (this reflects the pearl)
Endereye: PlayerInteractEventItemStack{AIR x 0} ItemStack{AIR x 0} (this SHOULD) reflect the ender eye, but it does not.

This is my check as a snippet: so you can see what im replicating:

@EventHandler
    public void on(PlayerInteractEvent e) {
        Plugin.info("PlayerInteractEvent" + e.getPlayer().getInventory().getItemInOffHand() + " " + e.getPlayer().getInventory().getItemInMainHand());
...

and here is a gif of the situation:
as you can see the interaction reflects the pearls correctly, but does not reflect the eyes correctly.
https://gfycat.com/UnluckyPositiveCobra (you can see it in hd if you click the little hd button)

Now, i already looked around but i could have totally missed the change if they changed where this event trigger for eyes is, but i dont think thats the prpblem, nor do i think they would change that.

Sorry for the page of text, i hate sending small bits of messages when i can just dump explain all in one

[drowsy helm]

sounds like a bug to me

[nimble hill]

(╯°□°)╯︵ ┻━┻

Ok ill make an issue report

[drowsy helm]

im guessing the two items are consumed differently

if you try and cancel the ender eye one does it work?

[kind hatch]

It might be a projectile being thrown.

Might want to check that.

[nimble hill]

That works, and i cant cancel the eye because it is firing the event AFTER the item is consumed

And i can have a stack of 2 of them and it will throw one eye, and do nothing with the second , but if i do the same with enderpearls it cancels both

It just seems like its misordered

[drowsy helm]

yeah doesn't sound right

[dense falcon]

                    plr.sendMessage(ChatColor.WHITE + "[" + ChatColor.DARK_RED + "Loup Garou" + ChatColor.WHITE + "]" +
                            " Les données sont entrain d'être supprimées...");
                    for (int i = 1; i < 3; i++) {
                        plugin.getConfig().set("roles.loup-" + i, "None");
                    }

                    plugin.getConfig().set("roles.loup-pere", "None");
                    plugin.getConfig().set("roles.mechant-loup", "None");
                    plugin.getConfig().set("roles.loup-blanc", "None");
                    plugin.getConfig().set("roles.voyante", "None");
                    plugin.getConfig().set("roles.sorciere", "None");
                    plugin.getConfig().set("roles.ange", "None");

                    for (int i = 1; i < 7; i++) {
                        plugin.getConfig().set("roles.villageois-" + i, "None");
                    }

                    plugin.saveConfig();
                    plr.sendMessage(ChatColor.WHITE + "[" + ChatColor.DARK_RED + "Loup Garou" + ChatColor.WHITE + "]" +
                            " Les données sont supprimées.");
                    return true;
``` Why once I do this, my value are not Strings?

roles:
  loup-1: None
  loup-2: None
  loup-3: None
  loup-pere: None
  mechant-loup: None
  loup-blanc: None
  voyante: None
  sorciere: None
  ange: None
  villageois-1: None
  villageois-2: None
  villageois-3: None
  villageois-4: None
  villageois-5: None
  villageois-6: None
  villageois-7: None

``` After.

roles:
  loup-1: "None"
  loup-2: "None"
  loup-3: "None"
  loup-pere: "None"
  mechant-loup: "None"
  loup-blanc: "None"
  voyante: "None"
  sorciere: "None"
  ange: "None"
  villageois-1: "None"
  villageois-2: "None"
  villageois-3: "None"
  villageois-4: "None"
  villageois-5: "None"
  villageois-6: "None"
  villageois-7: "None"
``` Before.

[drowsy helm]

setString

[dense falcon]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/configuration/MemorySection.html

It does not exist? 🤔

[drowsy helm]

ah nvm im bugging

[dense falcon]

So how I do :(?

It does not matter or 🤔 ?

I think it's not :>.

[fathom summit]

im trying so that my scoreboard shows the rank of a player but everytime i put %vault_rank% on the config my scoreboard js disappears how can i fix this

[drowsy helm]

nononono

bad practice

dont do

[vocal cloud]

You'll create unreadable code

[wet breach]

https://tenor.com/view/its-not-particularly-well-written-benjamin-learn-english-with-benjamin-its-poorly-written-that-is-bad-writing-gif-22353447

you shouldn't add the path separator manually

instead use PATH.separator for them slashes

not that it matters anymore I suppose

[fathom summit]

im trying so that my scoreboard shows the rank of a player but everytime i put %vault_rank% on the config my scoreboard js disappears how can i fix this

[remote swallow]

you dont really need to check if it exists

saveDefaultConfig doesnt overwrite anything

[analog thicket]

Why do i keep getting the "NullPointerException" didnt get it in my other plugin on the same stuff, im so confused

i get it on this line

getCommand("animation").setExecutor(new crateAnimation(this));

at

.setExecutor

[echo basalt]

did you register the command on the plugin.yml

[analog thicket]

Yep

I reloaded maven, that seems to work

[fresh timber]

in an EntityDamageByEntityEvent, how do you get the person that attacked the player?

if the person that attacked used an arrow

[worldly ingot]

A few extra steps but you can check if the damager is a Projectile. If it is, call getShooter(). Check if the shooter is a Player. If it is, you've got your killer

if (event.getDamager() instanceof Projectile projectile && !(projectile.getShooter() instanceof Player killer)) {
    return;
}

killer.sendMessage("hi you killed them");```

(checking for a Projectile instead of an arrow will support other projectiles as well btw)

[sterile token]

Lmao for being real, idk how Velocity Is going to be the proxies future. Startim from it's horrible api where you dont even implements a base class for plugins. Instead you use some really ugly injections vía @Inject.
Lmfao, not even going to code any plugin for that.

Also you use events for plugin activation and deactivation

Well it's done by paper whats More i can expect Hahahaha

[green tapir]

how can i code a lifesteal plugin but it only applies when the player uses a specific weapon?

and that weapon dissapears after a kill?

oh

[sterile token]

If you are on newer versions (1.16 and up, if im not wrong) you can use PDC, to add custom meta to the item

[vocal cloud]

Thought it was 1.14

[icy beacon]

1.14.4 and up afaik

[ivory sleet]

Whats the issue with that if I may ask?

Sure its a bit of an opinionated way, but I don’t see the big starving point here

[worldly ingot]

Not much. Just opts to make use of Guice

[rare rover]

is there a way to add a dependency to all modules?

without putting the dependency in each one

[wet breach]

add it to the parent pom

[rare rover]

what about the relocation for the dependency?

just put it in the core?

or what

[wet breach]

you can still do relocation in the module pom

anything in the parent pom applies to all the modules unless overriden by the module

if you don't specify the shade stuff in the parent pom, then obviously each module has to handle the shading itself

[rare rover]

dont i need the shade plugin?

[wet breach]

so, nothing to worry about for you except just moving where the dependency is specified

[wet breach]

I never said you don't need it, just said you can leave the shade stuff as it is

[worldly ingot]

You would put the shade plugin wherever you need to use it

[rare rover]

ah

[worldly ingot]

Maven works in a hierarchy. Think of it like all the repositories, dependencies, and build settings are copied from the parent and pasted into all its children

[rare rover]

right

so uh?

i put it into the parent pom

[worldly ingot]

May need to refresh or rebuild

[wet breach]

^

[rare rover]

i just did, let me try again

[worldly ingot]

Especially in IJ, Maven needs to be rebuilt every time you change something in the pom

[rare rover]

oh that time it worked

so just add the relocation to the Core module

and we good?

[worldly ingot]

Yeah whichever one it is that needs it

[rare rover]

awesome, thanks so much!

does this look good?

    @Override
    public List<HoeEnchant> getEnchants() {
        List<HoeEnchant> enchants = new ArrayList<>();
        for (HoeEnchant enchant : HoeEnchant.values()) {
            if (nbtItem.getInteger(enchant.name()) > 0) {
                enchants.add(enchant);
            }
        }
        return enchants;
    }```

just wanting some clarification

[wet breach]

not sure if this will work

isn't there like only one hoeEnchant o.O

[wet breach]

ah

[rare rover]

would that be the best way of doing that?

[lost matrix]

What versions are you working on?

[rare rover]

MC Versions?

1.19+

[lost matrix]

Yes

Then use PDC

[rare rover]

wtf is that

[lost matrix]

?pdc

[undone axle]

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

[rare rover]

ahh

[lost matrix]

You can store persistent data in a lot of things. Makes NBTApi mostly useless.
Also NBTApi uses reflections iirc which is for sure slower than Spigots API.

Btw you can actually register custom enchantments.

[worldly ingot]

but you really shouldn't

[quaint mantle]

when given an itemstack would the best way to find like the custom enchants (from lore) and getting like the amount of kills like if the line contains "Kills: then split it then or is there a better way?

[left plover]

Does BungeeCord send signed chats by default or no?

Or is it just the unverified chats banner?

[lost matrix]

Put it in the PDC if the ItemStack.
The lore should be purely visual and not contain any data

[quaint mantle]

when did that get added?

[lost matrix]

1.14

[quaint mantle]

mmm i support 1.16 through 1.8

[lost matrix]

Then at least use NBTItem

[quaint mantle]

then how would i go about adding a new enchant in a specific place?

or adding a new line or editing a specific line on the itemstack

[lost matrix]

Every time you change the data if your item you should update the lore of your ItemStack depending on all the data.
A method (data) -> (lore) which creates a new representation of your lore every time your data changes.

[charred blaze]

How can I automatically include the project version set in the POM.xml file in the compiled output of my IntelliJ IDEA project? I have already searched for solutions on Google.

[eternal oxide]

<filtered>true</filtered> in your resources section of your pom

[charred blaze]

<filtering>true</filtering>

i see this

okay

so set it to false?

[eternal oxide]

no

true means filter any resources you include

like plugin.yml

[charred blaze]

how is that helping me?

[eternal oxide]

any values available to mvn will be available to your plugin.yml

you just have to insert the correct field

[charred blaze]

can i just insert this "${project.version}" in artifact?

[eternal oxide]

you add that to your plugin.yml and it will be replaced when your jar is built

[charred blaze]

its already added

i dont mean version in plugin.yml

i want version on jar output

like

plugin-version.jar

[eternal oxide]

oh you want it in the actual compiled source?

[charred blaze]

yeah

[eternal oxide]

yes you can set a final name in your pom

[charred blaze]

where do i add it

[eternal oxide]

<jar.finalName>${project.name}</jar.finalName> in your properties section

[charred blaze]

thx

[eternal oxide]

put whatever you want in there

[charred blaze]

not working

[kind hatch]

Whoa, you don't need that tag. You can just set a final name under the build section.

<build>
  <finalName>WhateverYouWantToNameIt<finalName>
</build>

[charred blaze]

maybe because i have artifact with custom name?

[eternal oxide]

yes

[charred blaze]

so just remove it?

[eternal oxide]

I have it under properties as I have everythgin that can be edited there

[charred blaze]

but if i delete artifact it change's compile directory

[eternal oxide]

?

you should not be specifying a path in the name

[charred blaze]

i know

why does it create articafts folder now ;-;

what am i doing wrong

[eternal oxide]

?paste pom

[undone axle]

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

[charred blaze]

its no longer creating artifacts folder but still version is not included in the compile output

its just duels.jar

https://paste.md-5.net/kimilirulu.xml

[eternal oxide]

add teh version placeholder in teh jar.finalName entry

[kind hatch]

That's cause you never specify a final build name under the build section.

[charred blaze]

<jar.finalName>${project.name}</jar.finalName>

it is there

[eternal oxide]

thats JUST the name

you don;t have a version in it

[kind hatch]

That's under the <properties> tag, not the <build> tag.

[charred blaze]

oh right

[eternal oxide]

properties tag is just fine

it keeps it all in teh same place for editable entries

[kind hatch]

True, but you still have to include that variable in the build section using the <finalName> tag.

[eternal oxide]

no you don't

[charred blaze]

<jar.finalName>${project.name}-${project.version}</jar.finalName>

its

still

duels.jar

[eternal oxide]

sec let me pull up a jar that actually uses a custom name

[charred blaze]

ok

[eternal oxide]

?paste

[undone axle]

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

[eternal oxide]

This https://paste.md-5.net/asisuqiqej.xml builds Groupmanager1234.jar

[charred blaze]

ill try to insert just numbers instead of version placeholder

still

duels.jar

what im doing is clicking on build>build artifacts>build

if not with artifact

[eternal oxide]

this <jar.finalName>${project.name}-${project.version}</jar.finalName> builds GroupManager-3.0-SNAPSHOT.jar

[charred blaze]

how do i compile it?

[eternal oxide]

no

]artifacts is not maven

[kind hatch]

Just set the <finalName> in the build section. Then use the project flag as part of the name. This is guaranteed to work.

<build>
  <finalName>Duels-${project.version}</finalName>
</build>

[charred blaze]

uhh

so how do i compile with maven?

is maven compile faster?

[eternal oxide]

right side of screen -> maven tab -> lifecycles -> package

[charred blaze]

you mean this?

[kind hatch]

Use this button to run maven commands. clean package is what you'll need to run.
You can also setup a <defaultGoal> in your <build> section to use the automatic maven build tool built into maven so that it does that for you.

[charred blaze]

i cant see that button

im using new ui

[kind hatch]

Maven's on the right side.

[charred blaze]

where

[eternal oxide]

the M in teh right column

[kind hatch]

Click that button

[charred blaze]

got it

it started compiling

maybe

but where to

[kind hatch]

Yea, it's working

[eternal oxide]

now look in the target folder

[kind hatch]

^

[lost matrix]

I need some brainstorming support. I am currently writing a plugin which involves machines.

• Machines need energy
• Energy needs to be distributed via energy connections
• Connections can be established between machines and poles (poles are technically also machines)
• A machine can either consume or produce energy
• Every machine has an internal energy storage for buffering

Now i have a few design problems i need to tackle:
Distributing energy:
Should every machine simply "send" or "draw" energy to/from every other machine
when they get ticked? Every machine would have to traverse the network like a graph then.
Or should the network be its own object which has decentralized, collective energy storage
and every machine simply interacts with only the network storage.
I can argue for both cases and there are more questions for each case.
Example concerns for the network object case:

• When do networks get loaded and who keeps track of networks?
• How do i handle two networks being connected together?

Any thoughts are appreciated

[charred blaze]

where is that target

[kind hatch]

Should be in the root of your project folder.

[charred blaze]

how do i change output

directory

[eternal oxide]

I'd just draw, IF there is a provider in range/connected and there is buffer space

[kind hatch]

You can do that with the <directory> tag in the <build> section.

<build>
  <directory>../path/to/wherever</directory>
</build>

[charred blaze]

whats difference between this two

[charred blaze]

thx

[eternal oxide]

If you only draw when there is buffer space machines which are full would nto tick

no work, no draw = no tick

[charred blaze]

<directory>C:\Users\PC\IdeaProjects\Duels\target</directory>

[kind hatch]

IIRC, that's the default directory anyways, but it should show up in the file browser on the left there.

[lost matrix]

So you would check the network like a graph every time a machine ticks and simply draw from
producers if they are in range. This makes sense but what about fairness? If i have 3 consumers
which use 100/s and 1 producer who produces 150/s then i want the energy to be evenly distributed
between them. If i now go ahead and let the first consumer draw then the second only gets 50 and the
last one never gets anything. I would prefer behavior where everyone gets 50/s

[eternal oxide]

only allow a machine to draw from another node until it's less than or equal to the providers energy store

so one machien can;t empty anothers cache

the network will balance it's energy

[charred blaze]

yeah i can see it but i want it in specific directory

[eternal oxide]

and you only need to tick each machine and draw from connected nodes

[kind hatch]

Well, which one? Cause right now, the one you provided is equivalent to the default path.

[eternal oxide]

Directly connected, no need to seach the network for more power

[charred blaze]

wdym

oh

i remember i copied my directory's path

sorry for being dumb

[lost matrix]

Hm you brought an idea to me. I could never let anyone draw from others. I simply only let producers
push out their energy to connected consumers. So if a producer gets ticked and has 100 energy to give
he goes through the network and finds all consumers. Then he simply gives every consumer (which can take it)
100 / N energy.

[charred blaze]

wait does this sets project directory??

[eternal oxide]

You could do it that way, less work too

[kind hatch]

No, just the build directory. Hence why it's under the build tag.

[charred blaze]

then why are there that folders appearing?

[eternal oxide]

so producers would be generators and poles

[kind hatch]

It's part of the build process. You can ignore them as the jar file is what you'll be after.

[charred blaze]

why does it compile two jars. original- and default?

[lost matrix]

Hm poles either need to be neutral, so just a node for iteration.
Or they need to be producers and consumers at the same time.

[eternal oxide]

yep

[kind hatch]

I don't fully know why it does that.

[eternal oxide]

if you are pushign then poles have to be both

[lost matrix]

But the latter would dilute the energy distribution because of the energy / N fairness.
So i would rather make them neutral.

[kind hatch]

But, you shouldn't copy the one labeled original

[charred blaze]

why is it compiling two jars?

[eternal oxide]

neutral would only work if you also have machines pull

[charred blaze]

original-Duels-1.0-SNAPSHOT.jar

and

Duels-1.0-SNAPSHOT.jar

[eternal oxide]

second one is the one to use

[charred blaze]

whats the point

[eternal oxide]

original is before shading etc

[charred blaze]

how can i set it to atomatically delete?

[eternal oxide]

stop being finicky

[lost matrix]

Why would neutral only work if i have machines pulling energy?
If a producer pushes energy then he traverses the network like a graph,
puts all found consumers in a list and gives them energy. A pole would simply
be a Node in the network without consuming or producing energy.

[eternal oxide]

if you are tryign to auto deploy there are plugins for that

[kind hatch]

I wouldn't worry about it. It's a small jar since it contains pre shaded code. It's minuscule, but running the maven command clean will remove that directory entirely.

[eternal oxide]

ah ok I assumed poles would have an energy cache

[lost matrix]

Yeah would make sense...

[charred blaze]

meh okay

[lost matrix]

But only if they are consuming and producing. I think ill make them energy less tho.

[eternal oxide]

makes sense, less to tick

[kind hatch]

Relax, it's a small directory and that's from one of my projects. Yours will likely be smaller in size.

[lost matrix]

I think i will actually create an energy policy for machines where they can either push, pull or do nothing.
This way the user can cycle through that. Producers will have push on default and Consumers will have no strategy on default.
This brings up a bunch of implementation problems but i think i can figure those out.

[eternal oxide]

So long as your pull policy only attempts to balance energy it should be fine

[kind hatch]

Are you trying to make a system that mimics real electrical systems? Or is this something similar to electrical mods?

[eternal oxide]

else you have one machine pull from another, then the other machine ticks and it pulls back

[lost matrix]

No im orienting myself on systems like IC2 or Thermal Expansion

If i would create an electrical system i would be here for weeks. Im studying electrical engineering and i would probably
try too hard to make this accurate. And it would be less fun to play.

[lost matrix]

Yes i see what you mean there.

[kind hatch]

IIRC those machines from the mods were setup in a way that some machines could also act as a passthrough. However, most of them were a simple desgin.
Generator ---> Electrical Wire ---> Output Device