help-development

[proud basin]

ok so

[quaint mantle]

wait no this wont work

[valid crag]

no

[proud basin]

why not?

[valid crag]

you do
PlayerData data = playerMap.get(player.getUniqueId());

[proud basin]

oh your talking about what he said

[valid crag]

and then you do data.cooldownMap.put("cooldownName", new CooldownData("cooldownName", time))

for which you probably want to create a method on the PlayerData class, something like playerData.addCooldown(name, time)

[proud basin]

I still need to add all the data when the player joins

so lemme do that real quick

[valid crag]

myes

[quaint mantle]

are there any errors in console on load?

[proud basin]

also wouldn't I want to do public Map<String, CooldownData> cooldownMap = new HashMap<>(); instead of public Map<String, Long> cooldownMap = new HashMap<>();

[valid crag]

yes

[proud basin]

alrighty

done

may I ask why im making a new instance?

[valid crag]

of what? when?

[plain oxide]

Plugin does not work
I see the load confirmation using the onEnable() method, but the ones using other events don't work
I checked with /pl and the plugin is loaded

package dorokei.pyuagotto.dorokei;

import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerDropItemEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scoreboard.Team;

import java.util.Objects;

public final class Dorokei extends JavaPlugin implements Listener {
    @Override
    public void onEnable() {
        // Plugin startup logic
        getLogger().info("てすとぷらぐいん");
    }

    @Override
    public void onDisable() {
        // Plugin shutdown logic
    }

    //JoinEvent
    @EventHandler
    public void onPlayerJoin(PlayerJoinEvent p) {
        //入ってきたプレイヤーを取得
        //Player player = p.getPlayer();
        //Team nameHide = Objects.requireNonNull(Bukkit.getScoreboardManager()).getMainScoreboard().getTeam("nameHide");
        //System.out.println(nameHide);
        System.out.println("test");
        //assert nameHide != null;
        //nameHide.addEntry(player.getName());
    }

    @EventHandler
    public void onDropEvent(PlayerDropItemEvent e) {
        e.getPlayer().sendMessage("test");
    }
}```

Where should I fix it?

[proud basin]

Why am I doing ```java
data.cooldownMap.put(res.getString("Cooldown"), new CooldownData(res.getString("Cooldown"), res.getLong("Time")));

when I can dojava
data.cooldownMap.put(res.getString("Cooldown"), res.getLong("Time"));```

[valid crag]

because you for some reason went and made a CooldownData class even though I said it'd be fine to just have a Map<String, Long>

which is fine

but now you need to create a new instance of it, instead of just putting a long in a map

@plain oxide you haven't registered your listener

Bukkit.getPluginManager().registerEvents()

[proud basin]

Didn't you say to make a new class?

[valid crag]

i said if cooldowns had more data than just a single long, you'd have to make a new class

[proud basin]

oh

must of missed that then

[plain oxide]

I forgot it. thanks

[proud basin]

so what was the next step again

trying to scroll up but it keeps glitching on me

[valid crag]

are you loading the data yet

[proud basin]

yeah

I did that already

I made it so when the player joins their data gets put into the map

[valid crag]

then you are done

[proud basin]

oh shit it was that simple

[valid crag]

the next step would be to do the reverse of what we did now

that is, to read the data from the object oriented model and save it in the db

[proud basin]

yea

I can do that

I did it before without doing it async hehe

[valid crag]

💀

by the way you want to load the data in the async player prelogin event

[proud basin]

Yeah that's what I did

[valid crag]

so your server doesn't shit bricks when a bunch of players join and you need to run to the db 20 times doing random queries

[proud basin]

yea

so if I wanted the cooldown time I would do data.cooldownMap.get("Time");

[valid crag]

if you wanted the cooldown time for ender pearls, you'd do data.cooldownMap.get("ender pearls")

[proud basin]

hm ok I see

wait

so when I'm saving I have to type out every single cooldown

[fluid cypress]

if i remove the plugin chunk ticket, the chunk will be unloaded instantly in that same tick?

[mint frigate]

can anyone give me a eclipse setup?

[proud basin]

setup eclipse for what

[proud basin]

so would it be what it's named in the db?

[mint frigate]

I want to start coding spigot plugins

[outer sorrel]

is there a way to run certain code when a message in chat is clicked or at least run multiple commands?

[proud basin]

nvm that's a bit annoying but ok

[sudden raft]

does ProjectileSource#launchProjectile call ProjectileLaunchEvent?

seems like it doesn't, I'll test

[short shale]

how can i do to push player upwards?

[hasty prawn]

Set their Y velocity

[short shale]

ok, i will search about this

thx 🙂

[waxen locust]

hey, i seem to be getting the error [23:04:17] [Server thread/ERROR]: Could not pass event BlockBreakEvent to FallingFalling v1.0.0, and org.bukkit.event.EventException: null are there any common causes for this?

[hidden delta]

?paste

[undone axle]

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

[waxen locust]

?

[proud basin]

@waxen locust Post your code in it

[waxen locust]

ok

https://paste.md-5.net/tegodotogo.cs this is the listener code

[proud basin]

Can you post the full error?

[waxen locust]

sure

wait

i think i see it

nvm

just an error in my logic so an Interger object is null and is causing problems

[sudden raft]

it does

[torpid zinc]

I get this error but it gives me no class written by me, only spigot classes...

I'm modifying someone's command, and only this command does it

no other command does it

[hasty prawn]

Send the full error

[torpid zinc]

it is the full error

[hasty prawn]

There's nothing under the Caused by: java.lang.ArrayIndexOutOfBoundsException?

[torpid zinc]

idk, its really weird

[hasty prawn]

?paste

[undone axle]

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

[hasty prawn]

Send the command code

[dusk flicker]

?stacktraces

[torpid zinc]

https://paste.md-5.net/kefesulige.java line 136 is my command

it would be "/dac stats" the full command

[dusk flicker]

https://www.spigotmc.org/wiki/stacktraces/

Check that out

[torpid zinc]

I did... normally it gives me my exact line in my own class where the error was caused

but here its NMS and other stuff

but no class of my plugin

[dusk flicker]

that class is a fucking mess

[drowsy helm]

Bro split your code up

[dusk flicker]

holy hell

[torpid zinc]

not my code

[dusk flicker]

then why are you here

[torpid zinc]

I'm fixing someones code

he wrote that in 2016 I believe

[dusk flicker]

dear lord

rewrite it then

[drowsy helm]

Use a command lib much easier

Like aikar acf

[dusk flicker]

ah its this plugin

https://www.spigotmc.org/resources/deacoudre.14635/

[torpid zinc]

yes

I gotta update it for one server for 1.17

[dusk flicker]

Id recommend you just recode it

Honestly not a hard gamemode

[torpid zinc]

I would but not that much time with college coming soon

[drowsy helm]

Also not much reason making all those vars final

[dusk flicker]

this plugin is just a mess

[torpid zinc]

from what I've learn you should try to put your variables that you won't redifine final, makes it run a tiny bit faster

[dusk flicker]

ehh

speed shoulden't change

[hasty prawn]

Yeah that change is gonna be negligible

[torpid zinc]

you get a few ms, not noticeable but yeah

[hasty prawn]

I doubt its that much honestly lol

[dusk flicker]

It's not

[hasty prawn]

maybe a few ns

[dusk flicker]

https://cdn.rackdevelopment.tech/img/nO9BDhRMuy.png

[drowsy helm]

Should really only use final for apis tbh

Or proper constants

[dusk flicker]

Final has it's uses but I only tend to use it on stuff other people will interact with

[drowsy helm]

^

[hasty prawn]

Yeah I generally know my own code & what not to change

[drowsy helm]

It’s just a way to baby other devs to not use it lol

Change*

[waxen locust]

sorry for interrupting, I thought i had fixed the [23:04:17] [Server thread/ERROR]: Could not pass event BlockBreakEvent to FallingFalling v1.0.0 and org.bukkit.event.EventException: null error but apparently it still doesn't work. basically it runs fine the first time but when trying to update an existing score it breaks.
code: https://paste.md-5.net/akusaraxow.cs
error log: https://paste.md-5.net/fisehigowo.cs
relevant main class stuff: https://paste.md-5.net/tejebihejo.java (error is in the code pastebin so this shouldn't matter)

[dusk flicker]

Can you send us the entire error

[dusk flicker]

Caused by: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.HashMap.get(Object)" is null

FallingBlockListener line 26

also please format your code better (your IDE can do it)

it's bad

[waxen locust]

ik will do soon, just moved a lot of stuff around so it all got messed up

[hasty prawn]

CTRL + ALT + L is the keybind for code format in IntelliJ I think

[dusk flicker]

I presume it's Eclipse

I don't think IntelliJ auto does the author and license things

[hasty prawn]

Oh true

[waxen locust]

as for line 26 i have an if statement checking if the value is null. it seems to get past that if statement and crash on the next line due to being null

[hasty prawn]

ref.blocksbroken and ref.kills are not the same thing

[dusk flicker]

do me a favor

[waxen locust]

ty

fuck

[dusk flicker]

and please

formatting saves us time

[waxen locust]

ok

will do it rn

tysm

[dawn falcon]

hey does anyone know of a way to hide an Entity from a specified player?

[light terrace]

how to whitelist a people using spigot?

like if i want to whitelist : _Aslt

whitelist a player using commands

[dawn falcon]

you could register a command, that when it gets a username input, it stores that username in the "whitelist.json" file. Then register an event that triggers when a player attempts to connect, that checks if that username is in the "whitelist.json" file, and if not then kick them. found an article that might help with the reading of the json file part : https://attacomsian.com/blog/java-read-write-json-files.

[quaint mantle]

or just... /whitelist add _Aslt?

@light terrace

OfflinePlayer player = Bukkit.getOfflinePlayer(name);
player.setWhitelisted(isWhitelisted);

[light terrace]

no, i dont have op

[silk mirage]

just dispatch command

Bukkit#dispatchCommand

or smth like that

[hybrid spoke]

packets

[quaint mantle]

how to send title for a player?

[dawn falcon]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/entity/Player.html#sendTitle(java.lang.String,java.lang.String,int,int,int)

[quaint mantle]

player.sendTittle()

._.

this method is deprecated

if (!action.getPlayer().getInventory().contains(Material.AIR)){
                    action.getPlayer().closeInventory();
                    //action.getPlayer().sendMessage(ChatUtils.color("&f(&c!&f) &cYour inventory is full."));
                    action.getPlayer().sendTitle(null, ChatUtils.color("&cInventory Full"), 10, 30, 10);
                }

why its not working :/

What programm u using

Eclipse, IntelliJ IDEA

IntelliJ IDEA

Do you have any errors in console

no

it closed the inventory but didnt show any title

Set tittle to "", idk it maybe don't work with null, but its strange

[chrome beacon]

Subtitle requires a title iirc

[quaint mantle]

I'm just really sleepy right now

didnt work

if (!action.getPlayer().getInventory().contains(Material.AIR)){
                    action.getPlayer().closeInventory();
                    action.getPlayer().sendMessage(ChatUtils.color("&f(&c!&f) &cYour inventory is full."));
                    action.getPlayer().sendTitle("", ChatUtils.color("&cInventory Full"), 10, 30, 10);
                }

its sent the message

but not title

[chrome beacon]

You need to have something in the title

[quaint mantle]

No

its nullable

[chrome beacon]

You do

[quaint mantle]

I have used it many times like his and everything worked

[chrome beacon]

This isn 't about spigot it's about Vanilla

It won't render subtitle only

[quaint mantle]

if (!action.getPlayer().getInventory().contains(Material.AIR)){
                    action.getPlayer().closeInventory();
                    action.getPlayer().sendTitle("title", ChatUtils.color("&cInventory Full"), 10, 30, 10);
                    action.getPlayer().sendMessage(ChatUtils.color("&f(&c!&f) &cYour inventory is full."));
                }

ok now see ^^

umm yes

it worked now

Set in tittle " "

If you don't the tittle

it worked with " "

[quaint mantle]

I remembered that I was getting a string from the configuration from the configuration, so everything worked even if it was empty✌️
I'm just reeally sleepy right now

thanks both of you for helping :>

;)

np

[quaint mantle]

if (!action.getPlayer().getInventory().contains(new ItemStack(Material.AIR)))

this check wont work?

[eternal night]

Use first empty instead

https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/inventory/Inventory.html#firstEmpty()

[quaint mantle]

ok

[light terrace]

OfflinePlayer playerw = Bukkit.getOfflinePlayer("_Aslt");
playerw.setWhitelisted(isWhitelisted);

This shows an error

[light terrace]

can i change the (isWhitelisted) to true?

[hybrid spoke]

yeah obv, since isWhitelist is just pseudo

[hybrid spoke]

you have to

[quaint mantle]

?learnjava

[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.

[light terrace]

how to unban someone (by name) using spigot library ?

[reef wind]

@light terrace please look above and learn Java before you try to make a plugin.

[drowsy helm]

Anyone know if theres an api for the spigot resources page (to get a list of plugins)

[light terrace]

i learn a bit

[opal juniper]

Remove them from the ban list

[light terrace]

how?

[reef wind]

barely nothing obviously

[opal juniper]

Get the ban list
Remove them

A lot of these questions can be solved by just googling things

[reef wind]

he will probably just come back every minute if he doesn’t learn basic Java

[torn shuttle]

damn it the way I'm handling entity queries is stinky and I don't like it

do I really have to rewrite it

[light terrace]

i just use java to make plugins

[reef wind]

and? You need to know Java to make plugins.

[light terrace]

i know

[reef wind]

so you should go and learn it before attempting to make a plugin

?learnjava

[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.

[torn shuttle]

fuck this I'm not going to rewrite it

feels good to see that I tried to spawn an entity 6800 times but it's using so little power to search for valid spawn locations that it's not even showing up in the timings

[flat kindle]

?paste

[undone axle]

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

[flat kindle]

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

I have a question

I have a recursion with objects

as the recursion moves

do the player objects get duplicated?

In the memory

or any other objects for that matter

[torn shuttle]

I mean assuming that's the general idea of what you're doing you're just passing along the same object so there's no duplication

[flat kindle]

yea so they are just passed around then

I was unsure so thanks for the anwser

[hybrid spoke]

you are not passing the object, you are passing the reference to the object.

[torn shuttle]

Gee I wonder why my bossbars aren't showing up

1 hour later, oh I just happened to forget to assign a player

[quartz valve]

Is there a Chunk event before ChunkLoad?

[chrome beacon]

Don't think so, what are you trying to do

[exotic scroll]

how to delay a task by a set amount of time

[chrome beacon]

?scheduling

[undone axle]

https://www.spigotmc.org/wiki/scheduler-programming/

[stark marlin]

How should I approach this? I'm trying to softdepend on protocollib and only performing the protocollib effects if it exist on the server, but I'm getting a NoClassDefFoundError even if this code is never reached.
https://gyazo.com/114a03792e12d9e149b5e7a9b14826f6

[chrome beacon]

Looks like you're creating the variable outside of that hence the error

[stark marlin]

Oh, makes sense. Thanks! 😄

[indigo crypt]

Does anyone knows how to set multiple killers

[hardy swan]

is there a nicer way of writing this statement instead of leaving empty curlies?

while (!queue.isEmpty() && !queue.poll().equals(stopper)) {}

[indigo crypt]

because entityDeathEvent only catches someone who gets last hit

mention me if you know how to do that

[gleaming grove]

guys do you think is it good idea to use Dependency Injection pattern in spigot?

[echo basalt]

Yes

Always use it

Generally static bad

[gleaming grove]

i mean the automatically injection

[echo basalt]

Ah

It's generally not used in spigot

But stuff like Velocity (proxy) uses it a lot

[gleaming grove]

i dont event know if its possible with java

but i do often use this approach with C#

[echo basalt]

It is possible with java

But IMO annotation processing is something I don't use much

[gleaming grove]

do you have some paper how it work under the hood?

[echo basalt]

Because it needs reflections to work

It basically just obtains the constructor and calls it using reflections

Either that or it does some weird hack at compile-time

[gleaming grove]

ye but how does Java knows when Constructor is triggered?

there is some reflection event onObjectCreated or sth?

[echo basalt]

https://github.com/google/guice

Here's a framework that uses it

[gleaming grove]

o thanks : )

[echo basalt]

It does some bytecode stuff to change classes I think

[torn shuttle]

        List<SimplePersistentEntity> list = persistentEntities.get(chunkLocation);
        if (list == null) return;
        list.forEach((simplePersistentEntity -> {
            if (simplePersistentEntity.customBossEntity != null)
                simplePersistentEntity.customBossEntity.chunkLoad();
            else if (simplePersistentEntity.npcEntity != null)
                simplePersistentEntity.npcEntity.chunkLoad();
        }));
        persistentEntities.removeAll(chunkLocation);
        chunkLocations.remove(chunkLocation);

I'm sort of confused here, this is giving me a CME on list.forEach((simplePersistentEntity -> { , am I forgetting something here?

[echo basalt]

You're modifying the list while looping

Also for loops are better than Collection#forEach

[torn shuttle]

#forEach is a modification?

that's the part I don't get

why is it erroring there specifically?

[echo basalt]

as the forEach method is just a fancy for loop wrapper

Think of it like this

[torn shuttle]

I know this isn't the best setup for the iterator, I was just trying to see exactly where it was messing up

[echo basalt]

Collection<Object> collection = ...;

for(Object object : collection) {
  // Do stuff
  collection.add(anotherObject);
}

This will throw a CME

Now

[torn shuttle]

yeah but I am not doing that on that specific line am I

[echo basalt]

Let's say you're looping

And on another method that happens to be called at the same time

You're adding to the list

You get a CME

One thing you can do is clone the list

Another (which I believe will work but not 100% sure) is using the synchronized keyword

[weak adder]

player.getInventory().addItem(new ItemStack(Material.BOW, 1).addUnsafeEnchantment(Enchantment.ARROW_KNOCKBACK, 1000));
                sender.sendMessage("You Have Been Given a " + ChatColor.GREEN + "Punch 1000 Bow"));

Hello,
Im trying to add an enchantment for the bow but it gives me this error Cannot resolve method 'addItem(void)'

[torn shuttle]

this is so weird

[echo basalt]

ItemStack#addUnsafeEnchantment is a void

[torn shuttle]

I understand the underlying issue with a CME but I didn't think it would tell me it errors on the first line of the iterator

[echo basalt]

ItemStack item = ...;
item.addUnsafeEnchantment(...);
addItem(item);

works

[echo basalt]

You need to check where you're adding to the list

[torn shuttle]

actually I wonder...

[echo basalt]

One amazing thing I used to do

Which made the garbage collector work extra hard

Was basically

for(Object obj : new ArrayList<>(list))

Which clones the list and loops through the clone

You won't have any CMEs on that

And you can modify the original list inside

But cloning a list temporarily isn't the best way to avoid CMEs honestly

[weak adder]

Thank You

[valid crag]

the iterator is the one that checks for modifications

basically, each collection has a modification counter in it

any modifications will bump the number up

the forEach call, and any other iterator like a for loop for that matter, will look at this modification counter at the start of every iteration

if the counter has changed, it throws an exception

this is why the forEach line is throwing the exception, and not the code that is actually causing the modification and the CME

[echo basalt]

^

[crude charm]

why TF does this not work

[echo basalt]

I couldn't bother explaining

[torn shuttle]

see that makes more sense, also this was never meant to modify the list as it iterated through it and it turns out I found a different bug

[valid crag]

it's not there for the purposes of debugging why your collection is being modified, it's there to prevent unwanted behaviour

well... something somewhere that you're calling is modifying it

[echo basalt]

Do you register the player data?

[valid crag]

as for what that is it's not super simple to find out

[crude charm]

fixed it

I was dumb

[severe marsh]

How do I get rid of this message? https://prnt.sc/1ic7dyb

[crude charm]

#help-server

but it's server.properties

show achevements

[torn shuttle]

I am currently wrapping it up being it looks like the code I'm using to detect whether a chunk is loaded is not working correctly when it's checking for chunks that are mid-load event

[severe marsh]

thanks

[torn shuttle]

which makes sense

[quaint mantle]

https://prnt.sc/1ic7jhv can anyone help me ?

[torn shuttle]

I guess

[valid crag]

the whole "is a chunk loaded" deal has gotten more and more batshit over the years

[torn shuttle]

I am genuinely rewriting everything due to that and entity spawns in loading chunks

it sucks, hard

[valid crag]

mojang keeps changing how things work under the hood and bukkit, being the colossal clump of indextrous shit that it is, can't reflect that

[torn shuttle]

as much as I hate it I think I'm going to have to run the code one tick later or smth

I really hate it

[quaint mantle]

https://prnt.sc/1ic7jhv can anyone help me?

[valid crag]

weren't you already answered

and also told to go to a different channel?

[torn shuttle]

man it's either this or feed data to my chunk checker to let it know about chunks that aren't done loading yet

[eternal oxide]

if (Tag.CROPS.isTagged(block.getType())

[plain oxide]

Code written other than Main.java does not work.
Do I need to draw any special code?

[valid crag]

the 1.17 entity loading mechanics change has caused other issues as well

for example, now it's basically impossible to detect when mobs load into the world

as opposed to them being spawned

previously, you'd listen to chunk load event and get the entities in the chunk

but now, the entities aren't loaded in the chunk yet by the time the event fires

[torn shuttle]

yeah this blows chunks

[quaint mantle]

https://prnt.sc/1ic92pr

[quaint mantle]

check intellij error description

https://prnt.sc/1ic9sx6

well, yes, my answer went much later than I wanted, thank you dacha internet😒

[valid crag]

imagine linking the actual image instead of a laggy ass webpage

smh

[eternal oxide]

if(Tag.CROPS.isTagged(type)) {
    Ageable crop = (Ageable) block.getBlockData();
    if (crop.getAge() == crop.getMaximumAge()) {
        block.breakNaturally(playerTool);
        block.setType(type);
        crop.setAge(0);
        block.setBlockData(crop);
    }
}``` This should be correct.

[torn shuttle]

imagine that the code works when you do it right

fml

now I'll get to find out whether entities are loading correctly with chunk loads on 1.17 when you do it manually or not

[hybrid spoke]

they should get loaded.

[torn shuttle]

I agree but does minecraft agree ?

it's looking good so far

[hybrid spoke]

it does

spigot agrees too

[flat kindle]

How would I know if a conversation is still active with the conversation api in spiot?

?paste

[undone axle]

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

[flat kindle]

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

if the conversation had ended does the getStatus method return null?

[hybrid spoke]

#getState should it be

[hybrid spoke]

https://tryitands.ee/

[torn shuttle]

stopping energy drinks cold turkey sucks

[flat kindle]

it actually doesnt

And now the entire server froze

[hybrid spoke]

yeah well

thats what a non breaking while loop does

freeze the server

[flat kindle]

GetState cannot return null

[hybrid spoke]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/conversations/Conversation.html#getState() -> @NotNull

[opal juniper]

the conversation api...

[hybrid spoke]

whats the usecase of that

i've never used it before

[opal juniper]

when you need a series of text inputs

"what do you want this to be called" -> they reply

"what about this" -> they reply again

[plush gulch]

what would be the event of an activating totem of undying?

[opal juniper]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/event/entity/EntityResurrectEvent.html

if they have no totem = cancelled

[plush gulch]

thanks

[hybrid spoke]

ah

[opal juniper]

yeah its a pain doe

[torn shuttle]

god damn it now I gotta figure out gradle relocations again

I hate this

[ivory sleet]

That’s trivial at most I’d say

Do you have the shadowJar plugin?

[chrome beacon]

Took me a while to figure out

After you've done it once it gets easier

[quaint mantle]

Hi! I wanted to know what the current version for BlockState#update(false) is. In the bottom of this post https://www.spigotmc.org/threads/blockstate-update-doing-nothing.322795/ BillyGalbreath explained that updating the copy does nothing anymore. How can I make sure a item hasn't changed when I want to apply the blockstate?

[severe marsh]

How do I make autocomplete?

[quaint mantle]

https://www.spigotmc.org/wiki/example-on-making-tabautocomplete-commands/

[severe marsh]

Thank you

[quaint mantle]

If you mean tab autocompletion then this example should help.

[severe marsh]

yeah I meant that

[quaint mantle]

that site really needs a redesign lmao

[oblique pike]

Is there any easy way to get a player who resurrected ender dragon?

[quaint mantle]

If there probably is no API for that I would just check who was the last player to place a ender crystal on a valid bedrock block to respawn the dragon. Then when the DragonBattle starts you simply do #hasBeenPreviouslyKilled() and that should be it.

[hybrid spoke]

not sure if there is a player statistic. otherwise save it yourself

[fading pulsar]

?psate

?paste

[undone axle]

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

[fading pulsar]

Hey who can teach(or help) me to debug? my plugin playerEvent have error
The Plugin code: https://paste.md-5.net/oqumemufor.cs
The PlayerEvent Error: https://paste.md-5.net/igajamejiv.cs

[quaint mantle]

https://prnt.sc/1icwkdc Thanks, should I add import for type?

[eternal oxide]

type is the Material

[quaint mantle]

Caused by: java.lang.IllegalArgumentException: Health must be between 0 and 20.0(25.0)
Already indicates you try to set player health to something over max health

at co2.rto.RTOPlus.Main.onPlayerJoin(Main.java:42) ~[RTOPlus.jar:?]
Shows you the error is in line 42

[fading pulsar]

thanks you, let me try to edit that code

player.setHealth(NowHP + 5);
player.setMaxHealth(DefaultHealth + 5 * NowLevel);
``` edit to

player.setMaxHealth(DefaultHealth + 5 * NowLevel);
player.setHealth(NowHP + 5);

[quaint mantle]

Shows me error

[eternal oxide]

Learn java

[quaint mantle]

One sec, imma read it to get context

[quaint mantle]

ohh sry im dump

sry

[quaint mantle]

yes

you need to make the max health higher before setting the health

[fading pulsar]

Sorry I am a beginner @@

[quaint mantle]

it is fine lol at least you didn't say "where is my error"

[fading pulsar]

thanks you

[quaint mantle]

you're welcome

[fading pulsar]

Emm

no't error but not change maxhealth...

[hybrid spoke]

since you have to probably go over the attribute

[sharp lantern]

can anyone help me please

[hybrid spoke]

?ask

[undone axle]

If you have a question, please just ask it. Don't look for staff or topic experts. Don't ask to ask or ask if people are awake or available. Just ask the question to the channel straight out, and wait patiently for a reply.

[fading pulsar]

emm i have write lccording to player's level to edit player maxhealth

Code: https://paste.md-5.net/zexozoqoho.cs Version: 1.12.2

[chrome beacon]

setMaxHealth is deprecated use attributes

[fading pulsar]

Emm what attributes can set maxhealth?
i just know setMaxHealth @@

[chrome beacon]

That would be the MAX_HEALTH attribute

[hybrid spoke]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/attribute/Attribute.html#GENERIC_MAX_HEALTH

[fading pulsar]

my API is 1.12.2 not 1.17

[hybrid spoke]

okay, and?

[fading pulsar]

same?

[hybrid spoke]

most likely

just look for max health

[fading pulsar]

emm how to use xd have example project?

i write final Attribute GENERIC_MAX_HEALTH; in line 35

[chrome beacon]

.-.

[hybrid spoke]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/attribute/Attributable.html#getAttribute(org.bukkit.attribute.Attribute)

[chrome beacon]

How much experience with Java do you have

[fading pulsar]

emmm 3 month xd

[chrome beacon]

Aight

[hybrid spoke]

with 3 months you should already know how to use javadocs

or a least google

[fading pulsar]

oh thanks you maxhealth have change 🙂

[chrome beacon]

?paste

[undone axle]

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

[fading pulsar]

?paste

[undone axle]

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

[chrome beacon]

Also you should avoid opening or closing the inventory in the event

Delay that until the next tick

[tulip sky]

okay

[tulip sky]

sorry did not know the order

[chrome beacon]

Don't detect inventories by name either

[fading pulsar]

is okey

[oblique pike]

Is there any way to achieve effect of "fear" (like creeper running away from cat, skeleton running away from dog) on other mobs?

[outer crane]

In vault, when is Economy#createPlayerAccount(OfflinePlayer offlinePalyer) called?

[dense goblet]

It is an AI goal I believe

You need nms

[drowsy gorge]

Hello, I am coming to see you because I would like to make a patch for Spigot but I cannot find the sources. Can you clarify this for me? Thanks a lot !

[hardy swan]

depends on the economy plugin, but im blindly guessing PlayerJoinEvent

that's how you get $200

[outer crane]

I’m working on an economy plugin, so I have to call that myself?

[oblique pike]

Thats bad 😦 Would not want to use NMS

[dense goblet]

If you're using paper they expose the AI in the API

Otherwise it has to be nms :/ idk why spigot hasn't added AI support yet

[ivory sleet]

Its iirc inconsistent

Would be a whole lot nicer if it was registry based or something

[dense goblet]

Inconsistent by Mojang?

[ivory sleet]

No but goals change from version to version

[oblique pike]

paper API could be a solution, thanks

[dense goblet]

Ah I see

[ivory sleet]

Yeah I believe even paper doesn’t have a too rich api when it comes to the goals altho sufficient enough probably

Nvm it’s kinda good

[unreal quartz]

just a paper hater smh

[hybrid spoke]

you cant be a specific hater if you hate everything

[mystic sky]

a

[indigo crypt]

Does anyone knows how to set multiple killers, because entityDeathEvent only catches someone who gets last hit

[short shale]

big lines can cause some lag in java?

[ivory sleet]

No

You can technically minimize all Java classes to 1 line wouldn’t do much of a difference

[maiden briar]

How can I remove this message?

[oblique pike]

Is there any examples of using Paper's AI api?

[ivory sleet]

Probably

Give it a google

[flat kindle]

Is there a way to check if itemIn main hand is a block?

[oblique pike]

For me it looks like it is only possible if you create your own entity

[flat kindle]

I cant seem to find a way to obtain the ID,and the isBlock method does not exist anymore

[hardy swan]

Material might have the isBlock method

[oblique pike]

Yeah, it does

[flat kindle]

oh you're right

found it

[short shale]

thx bro

[toxic mesa]

Does #isgliding just check if the player is using an elytra?

[quaint mantle]

yes

[toxic mesa]

awesome ty

[short shale]

how can i do to add the player's inventory to an arraylist?

I already set an arraylist for the inventory type

i was trying this: inv.add(p.getInventory());

[quaint mantle]

PlayerInventory#getContents

[hybrid spoke]

#addAll

[quaint mantle]

it returns ItemStack[] but you can convert that to a List<ItemStack>

[short shale]

hmm, ok

i wil test it

thx ❤️

[quaint mantle]

How can i auto ignite tnt on placement without removing it and making a TNTprimed

[ivory sleet]

TNT#setUnstable?

[quaint mantle]

oh is that what that is?

[cold tartan]

?syntax

what is syntax

[valid crag]

noun
noun: syntax

1.
the arrangement of words and phrases to create well-formed sentences in a language.
"the syntax of English"
    a set of rules for or an analysis of the syntax of a language.
    plural noun: syntaxes
    "generative syntax"
    the branch of linguistics that deals with syntax.
2.
the structure of statements in a computer language.

[cold tartan]

lmfao i meant the command

?help

[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.

**__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.

[chrome beacon]

There is no syntax command

[cold tartan]

i swear there is

[chrome beacon]

Do you mean javadocs?

[valid crag]

the bot is 🚮

[cold tartan]

like with the bot

no i swear someone did it before

?javadocs

[chrome beacon]

?jd

[undone axle]

Spigot: https://hub.spigotmc.org/javadocs/spigot
BungeeCord: https://ci.md-5.net/job/BungeeCord/ws/api/target/apidocs/overview-summary.html
BungeeCord Chat: https://javadoc.io/doc/net.md-5/bungeecord-chat/latest/index.html

[oblique pike]

How do i stop monsters targetting player?

[tame coral]

A smart way could be to make player invisible only serverside

But some mobs (such as guardian) can still see invisible players

[chrome beacon]

There is a target event iirc

Let me check

Yeah use EntityTargetLivingEntityEvent and cancel it

[oblique pike]

Sometimes it does not work

For example if i spawn creeper

I do not even see the event to be fired

But he still targets me

And even if i cancel this event

At some point it just doesn't get cancelled

[vivid temple]

is there a fall damage event?

[vivid temple]

thanks

[chrome beacon]

Don't compare enums with equals

Use ==

[left swift]

How can i make EntityItem unpickable? which method (nms)

[chrome beacon]

Why NMS

[left swift]

i would send packets to certain players

[chrome beacon]

If it's packet items you don't need to do anything

[left swift]

are u sure? i can't pick them?

[valid crag]

the client will attempt to pick it up but nothing will happen

[hybrid spoke]

the packets result would be only clientside. you can't pick something up, what is not there

?paste

[undone axle]

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

[hybrid spoke]

use this

[vivid zodiac]

k'

[vivid temple]

how do i check if a player has custom armor equipped?

[hybrid spoke]

what version

[vivid zodiac]

Hi, who can help me ?
i want to place my players to array, but when i want to use it, i've errors
https://paste.md-5.net/silihunimu.cs

[vivid temple]

1.17.1

[hybrid spoke]

use the PDC

[vivid temple]

PDC?

[hybrid spoke]

persistentdatacontainer

[vivid temple]

so how would that work?

[hybrid spoke]

store a NSK in it and search for it whenever you are equipping armor

or whenever you wanna check if its a custom armor

[vivid temple]

okay

thanks

[vivid temple]

but there is no equipping armor event

so how do you check that?

[chrome beacon]

There's a lib you can use

[hybrid spoke]

trick a bit or make your own by listening for the playerinteract-, inventory Event

iirc there is already one

[vivid temple]

oh?

[hybrid spoke]

https://www.spigotmc.org/resources/lib-armorequipevent.5478/

[vivid temple]

ah library

[valid crag]

imagine if that event ever got pulled here from downstream

[chrome beacon]

Would make things so much easier

Paper has a lot of neat api additions

[left swift]

ew, how can i send packets in 1.17 nms? in 1.16.5 nms i use ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet); but i cant use it in 1.17 :/

[chrome beacon]

Player connection is b

That's all I remember

[left swift]

oh, yes, thanks

[chrome beacon]

Yeah

[left swift]

ugh, what?

[waxen plinth]

Reflection time 👏

[left swift]

it is public class :/ why i have this issue?

[chrome beacon]

Make your life easier and use Protocollib

[fluid cypress]

which could be a tp that have TeleportCause.UNKNOWN type?

[chrome beacon]

If you get glitched through a block slightly when a block break is cancelled that will trigger Unknown iirc

And so do doors when their opening is cancelled

[left swift]

is there any other way out? 😬

[chrome beacon]

Protocollib

No reason to reinvent everything

[fluid cypress]

only that?

im doing a /back command, should i care about unknown?

[chrome beacon]

That's what I know of

[paper viper]

Tbh I’d use NMS over protocollib for some cases

[valid crag]

make the teleport cause list configurable and you don't need to care about anything

[paper viper]

Because protocolib has some limitations

[chrome beacon]

PacketWrapper makes Protocollib easy

[fluid cypress]

too much work

[valid crag]

literally just like 4 method calls

[chrome beacon]

^^

[left swift]

eh, I tried, I had a few bugs, for example spawning a magmacube spawned me a pillager: /

[chrome beacon]

What

[left swift]

https://cdn.discordapp.com/attachments/572831985433575470/836694662554583071/2021-04-27_22.05.36.png

its old, but i have this

[chrome beacon]

What about it

PacketWrapper is slightly outdated you can easily fix it

[left swift]

someone just recommended it to me and I tried, but failed, I tried ordinary nms and so far I stayed

[chrome beacon]

Oh well you might not get support from here

NMS is undocummented and generally unsupported

[paper viper]

Wiki.vg

But that doesn’t count as documentation lol

[fluid cypress]

if i get the player location inside the PlayerTeleportEvent, ill get the old location? or the new one? if i get the new one, how can i get the old location previous to the tp?

[chrome beacon]

That's just packet info not really docummentation of the code

[valid crag]

use getFrom and getTo

the behaviour of Player::getLocation is undefined during a move event

[fluid cypress]

thanks

[paper viper]

There were some issues regarding how it affects the saturation of the pipeline and adds too much to it

For example heavy processes requiring a ton of packets to be sent to users may suffer if ProtocalLib is used, so some people switched to NMS

To optimize packets

[chrome beacon]

Yeah that's what you do when you know how things work

Not when you need to get spoonfed NMS code

[valid crag]

muh pocket performance

[gleaming grove]

There is some option to set default Lore color to White instead of Purple?

[ivory sleet]

Prefixify &f for every line

[gleaming grove]

meh i thought there is some option to avoid loop ;/

[ivory sleet]

That loop isn’t probably going to hurt performance the slightest

If it does you might wanna do the string operations async and then callback bit that has some latency on its own

[gleaming grove]

but in this case i need to run extra async function so it might hurt Ram

or not?

[ivory sleet]

What

Well ofc every method call is overhead

But point is, if string operations are too heavy then that might slow down server thread thus lag spikes

[fluid cypress]

Arrays.asList returns an inmutable list or a mutable one? what about List.of? which one is mutable?

[ivory sleet]

declaring a callback is negligible and even more negligible than that

It’s a fixed size list

Arrays::asList

List::of is an immutable one

[fluid cypress]

is there any way i can declare a normal list, mutable, dynamic size, etc, but inserting an item automatically?

like Arrays.asList(x) but mutable and dynamic size

[ivory sleet]

Lists.newArrayList(vararg)

[eternal oxide]

new ArrayList(x)

[gleaming grove]

ok thx

[fluid cypress]

can i do that??

[ivory sleet]

No

You can pass initialSize or a collection

iirc

[eternal oxide]

Depends what your original data format is

[gleaming grove]

@ivory sleet is there some fancy lamda for this kind of operation?

[ivory sleet]

No but why

Well there is

[sturdy patrol]

Probably description.stream().map(s -> ChatColor.WHITE + s).something

[ivory sleet]

Yeah ^

[vague oracle]

Does InventoryMoveItemEvent not work for players?

[ivory sleet]

But it’s not worth using consider the overhead

[valid crag]

it has nothing to do with players

it's for hoppers and shit

[gleaming grove]

right

[ivory sleet]

Maybe if you’re writing an enterprise app ¯_(ツ)_/¯

[sturdy patrol]

Agreed. It's syntaxic sugar.

[valid crag]

just write an util that does it tbh

[ivory sleet]

Yeah

[valid crag]

pretty sure like google's collections libraries have utils that do similar things too so you don't even need to write it

[ivory sleet]

If not then Apache got it

[fluid cypress]

im saving the teleport history of each player using the PlayerTeleportEvent event, but i want to be able to teleport players from this plugin, without modifying that history, how could i know, inside the teleport event, that the tp was made by the plugin itself? is there any way to get the plugin that teleported the player? i can do e.getCause and know that it was a plugin, but not which plugin, or can i?

[dense goblet]

Can you make a custom cause? Idk if it's supported

That would be the most proper way

Otherwise you'd have to set some flag and do it in a wishy-washy manner

[fluid cypress]

can i specify the cause when doing player.teleport?

[dense goblet]

Or, if the event fires instantly when you call teleport, pop the latest tp from your stack

[fluid cypress]

in that case, i could set the cause to unknown, bc im only listening to command and plugin causes

[dense goblet]

So have:
player.teleport()
teleports.pop()

[fluid cypress]

i assume plugin is the default, and i can overwrite it, right?

[dense goblet]

The params should show you if you can do so

[fluid cypress]

yea i thought about that, but im adding 2 locations sometimes, so, it would be a lot more complicated than that, specifying a teleport cause sounds like the proper way

[dense goblet]

Yeah thing is idk if you can do custom causes so in the case that you can't you'd have to do the other way

[fluid cypress]

yes you can https://hub.spigotmc.org/javadocs/spigot/org/bukkit/entity/Entity.html#teleport(org.bukkit.entity.Entity)

yea, ill do that, thanks

[lament minnow]

Is it better to shade custom Java annotations (E.G., Jetbrains annotations), or to use Spigot's bundled JavaX annotations?

[valid crag]

you generally don't need to shade such annotations

annotations are a little strange in that their classes aren't actually required to be present in the runtime

[lament minnow]

oh

well whoops

that contradicts something what i learned earlier from here

guess that i will remove them from shading for several pom.xml files

[valid crag]

if you're reflectively looking at the annotations at runtime, then you need the classes

but you probably aren't reflectively looking at things like @Nullable or @NotNull and whatever

[ivory sleet]

Yeah usually they aren’t even kept at runtime

[lament minnow]

as a half-related question, what about adding their javadoc urls to the javadoc plugin's links

does that do anything

do annotations what function similarly to javax just become converted to javax at compilation or something

to make things simpler

man, i need to look up more about annotations

Does this mean that they do not even need to have the compile scope in Maven?

[compact cape]

Would some one explain what is https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/enchantments/Enchantment.html#getItemTarget() and how it relates to https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/enchantments/Enchantment.html#canEnchantItem(org.bukkit.inventory.ItemStack)

[chrome beacon]

getItemTarget return an a group of items that can be enchanted and canEnchant check a specific items if it meets all requirements to be enchanted

[vivid zodiac]

I create scoreboard, but how can i add player on team with command ?

[compact cape]

So if in custom enchants which override the canEnchantItem, getItemTarget returns null (Which must not be null) would not cause isuue?

[chrome beacon]

Yeah it would cause issues

[nimble loom]

I need to get offline players names often, but dosent Bukkit.getOfflinePlayer(UUID) have a limit since its accessing an api?

[ivory sleet]

It literally doesn’t

[chrome beacon]

It might since it can fetch data from Mojang

[ivory sleet]

Yeah well Server#getOfflinePlayer(uuid) will never

Maybe methods on the OfflinePlayer will

[chrome beacon]

Ah only name one does?

[ivory sleet]

But not that call

Yeah

[nimble loom]

Oh ok thanks

[ivory sleet]

Works fine

JavaPlugin implements Plugin thus can be passed there (:

[lament minnow]

Does something like Swing need to be shaded/have the compile scope?

[paper viper]

If you are going to use it, yes

[lament minnow]

so both

[paper viper]

It’s default set to compile

[lament minnow]

should i shade it, though

[swift dust]

how i can create a custom config yml?

[valid crag]

have you tried googling

[lament minnow]

https://www.spigotmc.org/wiki/plugin-yml/

[vivid zodiac]

How can i find player on scoreboard team ?

[waxen plaza]

I started making a plugin that uses bundles, but I noticed I can't craft one. Can I craft it in 1.17?

[lament minnow]

Wiki says that it is experimental and not enabled by default.

[waxen plaza]

oh, that sucks, but I quess I could add the recipe myself 😅

[lament minnow]

it says that it can be enabled with a data pack

but it can probably be enabled by a plugin too, somehow

or, at least, simulated

[waxen plaza]

yes, probably will do so

[restive abyss]

i want to create a custom items system should i use JSON to save the data for each item or something else?

[quaint mantle]

after my inventory is closed, should i somehow dispose of the listener? are there any performance problems?

it's created and shown whenever a player runs a command

[hasty prawn]

You can keep the Listener running. Otherwise you're going to have to unregister and re-register it everytime the command runs, keep track if any inventories are open... etc, it's more of a pain to do & it really shouldn't make a performance difference anyways

Cause the first thing you check I assume is if they clicked within that Inventory I assume? So it's only doing 1 thing

[valid crag]

unregistering and registering listeners is significantly more expensive than a simple check against a boolean or a set or whatever in the event handler itself

[hasty prawn]

I think you can use PDC with an Item's Meta, so if you're looking for persistent storage for a "custom item", you should probably use that

[valid crag]

every time event handler registrations are changed, the underlying arrays need to be rebaked

[restive abyss]

PDC?

[hasty prawn]

PersistentDataContainer

?pdc

[undone axle]

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

[restive abyss]

thank you i will look into it

[kind coral]

hi guys, im trying to make a subcommand to handle tabcompletions, how could i do that? i have a tab completion for the main command but i also want it for the "admin" subcommand, how could i achieve this? this is my current class. https://hastebin.com/cotoviligi.java ( Command Manager, also Main command )

[ivory sleet]

I have something horrible I wrote some time ago if you’re interested

[hasty prawn]

Check if args[0] is "admin", then return copyPartialMatches(args[1], <sub commands for admin>, new ArrayList<>())

[kind coral]

thank you very much

[ivory sleet]

https://github.com/NeptunMC/Casino I did this where every sub command handles the completion in case you’re interested, check command/nodes/admin/RollNode and ofc the manager classes

Don’t judge the code, was actually in a hurry when writing it lol

[dusk flicker]

What are the hotbar item id's?

[hasty prawn]

Like the slot ids?

[dusk flicker]

yeah

[hasty prawn]

0-8 I think

[dusk flicker]

alright

[ivory sleet]

69 (:

[reef wind]

nice

[waxen plaza]

Bundles do be experimental. I just found a glitch that kicks me when using a bundle lol.

[quaint mantle]

hey, how do i change the amount of players online

not to like, fake having players on -- to do the opposite

to make it so that vanished players dont appear

[formal warren]

Hello, I'm trying to create a Minecraft plugin but my onPlayerJoin event is not working. Like it's never seen by the server. Does someone know how to fix? I really appreciate

package com.test.pluginname.paladin;

import org.bukkit.ChatColor;
import org.bukkit.Server;
import org.bukkit.command.ConsoleCommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin{
    
    //VARIABLES
    Server thisServer = null;
    ConsoleCommandSender console = null;
    
    //START AREA
    @Override
    public void onEnable()
    { 
        thisServer = getServer();
        console = thisServer.getConsoleSender();
        
        console.sendMessage(ChatColor.WHITE+ "["+ChatColor.AQUA +"LastWords"+ChatColor.WHITE+"]"+ChatColor.GREEN+" Last Words has been enabled!" );
    }
    
    @Override
    public void onDisable()
    {
        console.sendMessage(ChatColor.WHITE+ "["+ChatColor.AQUA +"LastWords"+ChatColor.WHITE+"]"+ChatColor.RED+" Last Words has been disabled!" );
    }
    //END START AREA+-
    
    
    //EVENTS
    @EventHandler
    public void onPlayerJoin(PlayerJoinEvent event)
    {
        Player player = event.getPlayer();
        console.sendMessage("Test" );
        console.sendMessage("tfwefwefe: "+player.getUniqueId() +" test." );
        
        getServer().getConsoleSender().sendRawMessage("raw");
        player.sendMessage("TSTTSTST HI");
        
    }
}

[valid crag]

register the listener

[formal warren]

Hi @valid crag , I tried this:

Bukkit.getPluginManager().registerEvents(this, this);

But it's not working
How can I register it?

[valid crag]

it works fine

[formal warren]

It says:
The method registerEvents(Listener, Plugin) in the type PluginManager is not applicable for the arguments (Main, Main)
And it's an error

[dusk flicker]

For the hotbar item clicks, PlayerInteractEvent would be the correct event for that correct? I haven't done a hotbar setup in a long time

[dusk flicker]

implement Listener

[formal warren]

Yes

OMG

[formal warren]

Thanks you so much

I tried for hours

[blissful folio]

how can I make an entity affect a player only it's in the FOV of the player? Should I use raytracing?

[formal warren]

The UUID is unique only for the name or the minecraft account?

For example, if I change my Minecraft name, will I have the same UUID or another one?

[steep nova]

same

[narrow vessel]

the mc account

[dense goblet]

@formal warren your event handlers must be in a class which implements Listener

[valid crag]

well, they don't "have" to, but they are pretty useless otherwise

[quaint mantle]

hey i just made a server and i want to edit a plugin i got

i dont know anything about java

can someone help me

[valid crag]

no

this channel is for development

done by developers

[quaint mantle]

where can i ask for help regarding plugin creation

[dense goblet]

Do you want to create one or edit one?

[quaint mantle]

edit one

[dense goblet]

You can ask about creating plugins here (after following the guides) but you probably won't get help with editing a plugin if you have no other experience in programming

You could ask the plugin developer to add the feature you want

[valid crag]

to do plugin creation or editing plugins you first need to learn programming

[quaint mantle]

i know basic stuff

[valid crag]

which is beyond the scope of this channel

[dense goblet]

They should have a github page for suggestions and bug reports

[quaint mantle]

but im having trouble sorting the files

[dense goblet]

Do you have the source code?

[quaint mantle]

yeah

[dense goblet]

Do you have IntelliJ?

[quaint mantle]

yeah

[dense goblet]

And you can edit the code in intellij right

[valid crag]

this will end in tears

[dense goblet]

So then to export you just follow the tutorials on the spigot page

[quaint mantle]

alright thanks

[waxen plaza]

How can I get the console logs in real time?

[valid crag]

append a log handler

[waxen plaza]

Bukkit.getLogger.addHandler ?

I tried this but I my server crashed maybe I did something wrong.

[grim ice]

how do i check if a StructureGrowEvent is a 2x2 spruce tree

help pls

[lyric oar]

Hello, is there a way to make an armorstand moving fluidly like a player instead of teleporting it block per block ?

[valid crag]

depends on who's looking at it

[quaint mantle]

hey, how do i change the amount of players online
not to like, fake having players on -- to do the opposite
to make it so that vanished players dont appear

[crimson scarab]

hey guys

got a lil issue here

so im making a custom weapon where a trident beingg dropped will strike all nearby enemies

but its striking each enemy two times

[quaint mantle]

show code

[grim ice]

@crimson scarab lemme guess

PlayerInteractEvent ?

[crimson scarab]

yes

[grim ice]

?jd

[undone axle]

Spigot: https://hub.spigotmc.org/javadocs/spigot
BungeeCord: https://ci.md-5.net/job/BungeeCord/ws/api/target/apidocs/overview-summary.html
BungeeCord Chat: https://javadoc.io/doc/net.md-5/bungeecord-chat/latest/index.html

[crimson scarab]

wait no

[grim ice]

hm?

[crimson scarab]

my bad got distracted

sending paste bin soon

[grim ice]

if its PlayerInteractEvent then it's because its counting both hands

[crimson scarab]

https://pastebin.com/bRThzifd

[dusk flicker]

please use java conventions

?conventions

[undone axle]

Java Coding Conventions: https://www.oracle.com/java/technologies/javase/codeconventions-namingconventions.html

[grim ice]

NAMING

CONVENTIONS

wtf??

[crimson scarab]

my apologies

[chrome beacon]

You didn't know 👀

[grim ice]

@crimson scarab oh alsoo

ur code can be abused rly easily

with displaynames

players can change their stuff to anything with that display name and abuse ur plugin

[crimson scarab]

even with the colours?

[grim ice]

yeah

[opal juniper]

I think so

Yeah

[grim ice]

they can change colors

[crimson scarab]

what is the alternative

[grim ice]

isSimilar

and ur itemstack

[crimson scarab]

does anybody have an idea on why the variable i is being counted to twice the amount before the scheduler ends

[grim ice]

thats really weird

is ur main class

registering the listener twice

[crimson scarab]

nope

[grim ice]

just check if u have the line repeated (ppl seem to do it sometimes)

hmmm

[crimson scarab]

    @Override
    public void onEnable() {
        getServer().getPluginManager().registerEvents(new zeusSceptre(), this);
        getCommand("givecustomsword").setExecutor(new giveWeapon());

    }

sorry again for the lack of conventions I was only aware of variables

[grim ice]

I can't figure out why it's being called twice, are you sure it did?

[crimson scarab]

sorry for the confusion, its not being called twice however, the bukkit runnable is ending at 2x more iterations than the amount of entites nearb

[eternal oxide]

its running twice because you are counting ALL entities, then only applying damage and counting up for living ones.

so the first run doesn;t find enough

[grim ice]

o

[crimson scarab]

so do i need to change my entity list to exclude those i'm not targeting

[eternal oxide]

actually only players, monsters and not dead, yet the count is ALL entities

use https://hub.spigotmc.org/javadocs/spigot/org/bukkit/World.html#getNearbyEntities(org.bukkit.Location,double,double,double,java.util.function.Predicate)

and create a Collection, so you are not calling it twice

[grim ice]

also u could replace the (entity instanceof Monster || entity instanceof Player) with checking if its not an animal

[eternal oxide]

If you use teh Predicate you don;t need any other test

[grim ice]

Elgar

do you know a way i can check if a tree is a 2x2 spruce

[eternal oxide]

in an event or something?

[grim ice]

ye

@EventHandler
public void Spruce(StructureGrowEvent e) {
for (BlockState b : e.getBlocks()) {
if (b.getType() == Material.PODZOL) {
b.setType(Material.AIR);

        }
    }
}

i thought of that

idk tho i havent tried it

[stone sinew]

Could just check if e.getSpecies() is a dark oak.

[grim ice]

o

No

dark oak does not represent spruce

[stone sinew]

Well check for spruce then xD

[grim ice]

I don;t think theres one for spruce

i searched in google there is nothing

[stone sinew]

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

[grim ice]

I checked that.

there is no TreeType.SPRUCE

it might be REDWOOD, I don't think so tho

[stone sinew]

REDWOOD or MEGA_REDWOOD

[grim ice]

hm

[stone sinew]

If anything just debug it... plant saplings use bonemeal and check if e.isFromBonemeal()

[grim ice]

hm

what im doing rn is stopping podzol from spawning

[stone sinew]

Off that code above... you are removing the block that is turned to podzol... not stopping it from changing xD

[grim ice]

Same thin

thing

it wont replace

will it

[stone sinew]

Its not... You are removing a block

[grim ice]

oh god it will if its dirt

aaaaa

idk then

[stone sinew]

e.getBlocks().removeIf(b -> b.getType() == Material.PODZOL)
Adjust the code accordingly.

[woeful crescent]

How do I reduce a player's knockback in 1.8.8?

[lunar schooner]

Silly question maybe, but I've been pulling my hair out for an hour now. I need to get a constructor taking in a Class<?>[] reflectively, the question is how do I stick that Class<?>[] in the constructor. the compiler doesnt like any of:

• Object.class.getClass.arrayType()
• Class<?>[].class (This is allowed for Object[].class though?)
• Class.forName("java.lang.Class").arrayType() (On Windows this is fine, On Linux with openjdk-16-jdk-headless doesn't like it)
• Class.class.arrayType()

[valid crag]

you want an array of classes

not a class of an array

[eternal oxide]

Object.class.getConstructor(Class[].class)

[crimson scarab]

quick question how to remove item from list java?

[lunar schooner]

Why didnt I think of this T_T

[valid crag]

you can further cast the Class[].class to a (Class<?>[])

[crimson scarab]

im not sure how to use filter for nearbyentites

[valid crag]

to get the exact type

class objects don't exist with type parameters because of type erasure

so Class[].class is equivalent to Class<?>[].class

[lunar schooner]

Interestingly, with the type parameter isnt allowed

[valid crag]

yes, because it can't exist

because of said type erasure

[stone sinew]

getNearByEntities(5,5,5).filter(e -> e instanceof Animal).collect(Collectors.toList())
Might need to change some of the code.

[valid crag]

the distinction only exists at compile time

[lunar schooner]

Still curious though that some things work on Win but not on linux lol

[valid crag]

which is why you can cast a Class[].class to Class<?>[].class, but not create the latter directly

[eternal oxide]

just use the Predicate

[stone sinew]

Not for me, Response to the message I replied to

[eternal oxide]

ah

Yep chap earlier, I told him to use the predicate method thats in Bukkit

[quaint mantle]

how to create mob permanent metadata

after restart

[unique halo]

on spigot 1.8.8,
how do i make it so that a player cannot attack any entities? is there something like player.setcantattack(true) idk

[vague oracle]

EntityDamageByEntityEvent and cancel it if its a player

[unique halo]

also, does getNearbyEntities get all the entities within an ellipsoid of the player, or within a box of the player?

[valid crag]

a sphere

[vague oracle]

Most likely a box based on this "Returns a list of entities within a bounding box centered around a Location."

[valid crag]

in that case a cube

though i vaguely recall it being a sphere

[vague oracle]

Was a guess 🙂

[valid crag]

could be wrong ig, none of my logic has ever really hinged on it being either

[vague oracle]

If you want it to be a circle you could just do it yourself

[tacit drift]

store them in a file

for after restarts

and when the server starts

restore the mobs

just like how MythicMobs,WildStacker etc plugins do

[unique halo]

if it's a bounding box i'll just filter it

[quaint mantle]

FixedMetadataValue works:

?

[tacit drift]

idk

look on ws's github

https://github.com/BG-Software-LLC/WildStacker

[quaint mantle]

hey does anybody know the MC experience scale

is it like

(xp points / (their level * 2))

for xp adding/removign

[proud basin]

so I see that Map#get takes a long meaning I can't use it under a string is there another way around this?

[crimson scarab]

can somebody explain how to filter nearby entites i'm having issues

[unique halo]

how do i check if a coordinate, is inside of an entities bounding box?

[eternal oxide]

entity.getBoundingBox().contains(location.toVector())

[unique halo]

omg ty

does location.toVector just give (x, y, z) or is it (x, z, y) bcz i know that most things use z as height, instead of y

[eternal oxide]

its x,y,z and in all 3d its y is the veritcal axis

x/z is planar

[unique halo]

alr

[valid crag]

minecraft is pretty odd about its axes

i don't remember the details but y being used for the vertical axis is nonstandard

[eternal oxide]

only the +-

[quaint mantle]

so hey

[dusk flicker]

ye mc is weird

[quaint mantle]

how do i remove players from the online players counter with the ServerListPingEvent

[eternal oxide]

I've not done any 3d for many years, other than MC so I've likely forgotten

oh yes, normally GL etc is z is into teh screen

[dusk flicker]

I can get my self screwed up sometimes if im working with models and switch to mc and the axis's are diff lol

[valid crag]

yeah in rendering and shit z is the depth

[dusk flicker]

in most stuff it is

[eternal oxide]

I totally forgot that

[crimson scarab]

@EventHandler
    public void OnDropTrident(PlayerDropItemEvent event) {
        final int[] i = {0};
        if (event.getItemDrop().getItemStack().getItemMeta().getDisplayName().equals(ChatColor.LIGHT_PURPLE + "Zeus's Sceptre")) {
            event.setCancelled(true);
            BukkitScheduler scheduler = plugin.getServer().getScheduler();
            int size = event.getPlayer().getNearbyEntities(32, 32, 32).size();
            List<Entity> entities = (List<Entity>) event.getPlayer().getNearbyEntities(32, 32, 32).stream().filter(Monster.class::isInstance);
            for (Entity entity : entities){
                BukkitTask task = new BukkitRunnable() {
                    public void run() {
                        if (size <= i[0]) {
                            cancel();
                        }
                        if ((entity instanceof Monster || entity instanceof Player) && !entity.isDead()) {
                            entity.getWorld().strikeLightning(entity.getLocation());
                        }
                        i[0]++;
                        System.out.println(size + " | " + i[0]);
                    }
                }.runTaskTimer(plugin, 20L, 20L);
            }
        }
    }

My error is
java.lang.ClassCastException: class java.util.stream.ReferencePipeline$2 cannot be cast to class java.util.List (java.util.stream.ReferencePipeline$2 and java.util.List are in module java.base of loader 'bootstrap')

I believe it resonates from line 8

[eternal oxide]

That is way more complex than you need

You don;t need a counter

You only need getNearbyEntites with a Predicate to select which types

no filters

no streams

[crimson scarab]

i googled and look through docs for predicate but couldn't understand it

[lunar schooner]

Would you happen to know the JNI equivalent of java.lang.Class[]?

[eternal oxide]

entities = event.getPlayer().getNearByEntities(32, 32, 32, e -> { e instanceof Monster});

[crimson scarab]

and why do i not need a counter?