help-development

[trail flume]

How can I send an entity via a packet (that is not server-side) with a custom UUID?

[opal juniper]

lol

[mellow edge]

lol

[drowsy helm]

lmao

[fossil lily]

well time to figure out how to do that

[drowsy helm]

new Commands(this);

in your main class

[fossil lily]

is it that easy?

[drowsy helm]

yep

[fossil lily]

wow im dumb

[quaint mantle]

That finally worked. Even though in the end I found the solution on my own, I appreciated your help and it was a moral lifesaver. Thank you very much for your help.

[fossil lily]

😅

YAY I MADE MY FIRST COMMAND

[mellow edge]

lol

[quaint mantle]

Congrats

[fossil lily]

:D

[idle grotto]

Hey guys, I'm having a really weird issue. I have a table looking something ike:

player | some_boolean | timestamp

For some reason, modifying the some_boolean, sets the timestamp value to the current time.
I have tested it both in code and manually via a shell, to make sure I have no logic flaws in my code, and I can confirm it's not a flaw in my code.

[fossil lily]

Do you need a separate java file for each command?

[chrome beacon]

No

[drowsy helm]

what data type are you using to hold this table

[idle grotto]

bigint | boolean | timestamp

Using mariadb btw

[drowsy helm]

dont need to but imo it's good practice as you dont have 100s of commands in one class

[chrome beacon]

You could just store timestamp as bigint/long no? Might not be the best way though

[drowsy helm]

hmm strange could we get a code snippet?

yeah can do time as millis

[chrome beacon]

If you can't figure out timestamp use millis

[idle grotto]

Unfortunately, no. But I can confirm it's not a problem in my code, the same problem occurs when executing sql manually

[drowsy helm]

oh strange

[idle grotto]

I'll probably have to go for that, but it's really weird

[chrome beacon]

Yeah

[drowsy helm]

i might try recreate in mysql

see if its a maria problem or not

[idle grotto]

if you could that'd be great

[drowsy helm]

ill have to do it later though ill get back to you if i do

[idle grotto]

okay, I'll probably be asleep, but do ping me and I'll check it later

[chrome beacon]

From what I can find you can configure it to auto update timestamp

Not sure if that's on by default

[idle grotto]

another thing, it only happens when the boolean value actually changes, if you set it to true when it's already true it doesn't happen

[idle grotto]

what do you mean?

[drowsy helm]

The timestamp field is generally used to define at which moment in time a row was added or updated and by default will automatically be assigned the current datetime when a record is inserted or updated.

[chrome beacon]

https://mariadb.com/kb/en/timestamp/#automatic-values

[drowsy helm]

maybe you want DateTime?

not timestamp

[idle grotto]

oh I didn't know that, I was actually reading an article about the difference between DATETIME and TIMESTAMP, and it didn't mention that

thanks

[chrome beacon]

Time for me to get some sleep

Good night

[idle grotto]

gn 😴

[shy wolf]

is this bukit error?
https://paste.gg/p/anonymous/831e4faec9cc460f99fdadd7cf1cd69c

[drowsy helm]

has something to do with a discord bot

[drowsy helm]

what are you trying to do thats throwing the error

[shy wolf]

idk

whan i send msg or kick

[drowsy helm]

why does jda need a zipFile

to me that looks like a jda issue

is com.neovisionaries.ws.client your package?

[shy wolf]

nop

my is me.fish

[drowsy helm]

could i see the line where you are trying to send the message

[shy wolf]

            MessageChannel channel = event.getChannel();
            channel.sendMessage("Pong!");

[ivory sleet]

You need to queue it

[young knoll]

Does spigot have any convenient way to check if a block can be legally placed at a location

IE: Saplings can not be placed if the block below is sand

[drowsy helm]

Probably not. I think that check is clientsided

Unless someone went out of their way to make it

[ivory sleet]

Isn’t it both client and server

[feral socket]

there is Player#placeBlock

[drowsy helm]

Could be

[ivory sleet]

That’s paper ?

[naive jolt]

Hey so I want to check if there is a player near my npc how do i do that

[young knoll]

I know I can do it with NMS but blah

[naive jolt]

player.getNearbyEntities(5, 5, 5)

but like idk how to use it

[drowsy helm]

Theres a function for entities that gets entities in radius

[naive jolt]

this one

[drowsy helm]

Iterate through each entity in the areay and check if it’s a player

[naive jolt]

omg I should learn more java 😓

[ivory sleet]

Indeed

[naive jolt]

List()

tried with a list

[drowsy helm]

Does it return an array of entities?

[naive jolt]

List<Entity> entities = player.getNearbyEntities(5, 5, 5);

then i should do what?

for(entities : ?)

[drowsy helm]

Yep then instanceof Player

[naive jolt]

ah

[shy wolf]

channel.sendMessage("Pong!") /* => RestAction<Message> /
.queue(response / => Message */ -> {
response.editMessageFormat("Pong: %d ms", System.currentTimeMillis() - time).queue();
});

[naive jolt]

that makes more sense

[naive jolt]

ayy I miss coding bots

[naive jolt]

        }``` uh lol so basically i did instanceof then when i did autocomplete it did all this just wanted to know if its necessary or i should remove all that and just get ofc the instance of the player

[drowsy helm]

Nah you want to iterate over entities

Then do if(entity instanceof Player)

So a regular iteration for(Entity entity : entities)

[ivory sleet]

?codeblock

[undone axle]

You can use the discord code block format to display code or just text in a more pleasing way:

```java
public class MyPlugin extends JavaPlugin {
@Override
public void onEnable() {

}

}```
Becomes:

public class MyPlugin extends JavaPlugin {
    @Override
    public void onEnable() {

    }
}```

[naive jolt]

oh

that auto completed correctly

then if i just if the entity is an instance of player correct?

[drowsy helm]

Yeah

[wild reef]

Hey got a little issue:
I got this exception: Caused by: java.lang.NoSuchMethodError: 'java.util.List de.schmidi.config.PluginConfig.getCustomItemDrops()'
When calling the above named method. But I am kinda confused why it's happening. I am on Spigot Version 1.8.8 rn and made a other plugin similar to this one there methods like this work as well. Any idea why this error can pop up?

[ivory sleet]

Binary incompatibilities

[wild reef]

sooo, what can I do about it?

[shadow night]

What if i use a domain i don't own for my plugins ids?

[eternal night]

the internet police will find you

[shadow night]

And if I'll buy it when they find me?

[eternal night]

no but to be honest, it does not matter if no one owns the domain. stuff like me.raydanomg is perfectly fine even if you don't own it

[ivory sleet]

Well that error is a linkage error and yields when you for instance depend on a compile dependency which provides a class or interface with a specific method.
Let’s say the method add(Object o); from the interface PluginDataHelper.
Now when the server runs it uses your plugin jar which depends on that compile time dependency with that method, however the runtime dependency variant does not have the method add(Object o) it has for instance add(String str, Object o); instead [different signature] thus yielding the exception. @wild reef

[eternal night]

I wouldn't publish my library using com.google for example

[shadow night]

what if you do?

[eternal night]

but as long as it is only associated with you, its pretty okay

I mean, idk if google can do something about it ?

[ivory sleet]

com.google.lynxplay 😏

[eternal night]

but tbh, why do that in the first place

kinda sexy domain ngl

[ivory sleet]

lol

[shadow night]

I can imagine com.youtube

[eternal night]

if you need a url, use your github.io domain

io.github.raydanomgr

github reserves that for your github.io page anyway

so you can be sure no one can own it (unless you change your github username)

[wild reef]

Hm I understand, but that shouldn't be the case for my own defined method if I got that correctly? There is only one version currently of my plugin which contains the method. The error is like not even coming from within the method, it's my own method itsself throwing it

[ivory sleet]

Well

Is this all in one plugin?

[wild reef]

yea

[ivory sleet]

Also do you use plugman?

Be honest

[eternal night]

Be honest

LOL

[wild reef]

idk what that is, so I guess no xD

[shadow night]

So, even if I own a github account I can't access anymore it'll still be my domain, right?

[ivory sleet]

Oh okay gud

[eternal night]

yea, as long as no one else can

[ivory sleet]

Well might be the case some other plugin is reserving the plugin name of yours?

What’s the name of your plugin inside plugin.yml?

[wild reef]

it's called customDrops but that's the only plugin on the server

[ivory sleet]

And if you restart it would still yield the error?

[wild reef]

I tried to run the plugin on a 1.17.1 server as well, it worked there. But on 1.8.8 it throws the error even after restart.

[eternal night]

👀

[ivory sleet]

Oh

[wild reef]

But there is like no code contained in this method from spigot

it's literally just a print statement

[eternal night]

are you sure there are no errors prior then

[ivory sleet]

Send the entire error stacktrace

[eternal night]

^^

[ivory sleet]

?paste

[undone axle]

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

[ivory sleet]

I’m on phone so discord sucks btw

[wild reef]

oh yea forgot about that, one sec

[wild reef]

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

[eternal night]

is that the only error ?

nothing during startup ?

[wild reef]

no that's the only one

that's why I am really confused about it. I had a similar functional plugin tested on 1.17 and 1.8.8 and it also worked

[ivory sleet]

And if you just redeployed your plugin?

like recompile it

[wild reef]

same happens

[eternal night]

it is a single module plugin as well right ?

(I am guessing you are on maven)

[wild reef]

yep it is

[eternal night]

can you decompile the jar in the 1.8.8 server and validate that the respective method is there

really don't know anything else 😦

[wild reef]

yea I will give it a try

[eternal oxide]

what is line 32? Caused by: java.lang.NoSuchMethodError: 'java.util.List de.schmidi.config.PluginConfig.getCustomItemDrops()' at de.schmidi.listener.PlayerDeathListener.onPlayerDeath(PlayerDeathListener.java:32) ~[?:?]

[naive jolt]

    public void movement(PlayerMoveEvent e) {
        Player player = e.getPlayer();
        List<Entity> entities = player.getNearbyEntities(5, 5, 5);
        for (Entity entity : entities) {
            if(entity instanceof Player){
                sneakEvent();

            }

        }

    }

    private void sneakEvent(PlayerToggleSneakEvent event) {
        Player player = event.getPlayer();

        player.sendMessage("hmh Works");
    }``` so uhh why doesnt me calling the sneak event not work. Maybe its different with java

[eternal oxide]

you don;t call the sneak event. Even then you called it with no args. that does not correspond to your method/

a PlayerSneakEvent is triggered when a player sneaks

and it needs to be annotated just like all other events

and public

[naive jolt]

oh yeah I forgot thank you!

[quaint mantle]

hey how might one go about making some kind of minutely reward system

definitely hashmaps, lonsg, and runnables?

[quaint mantle]

Look into repeating Tasks

Even async repeating tasks will help you

[eternal oxide]

?scheduling

[undone axle]

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

[quaint mantle]

i just dont want 100000000 different tasks

You don’t need too

[eternal oxide]

You need 1

[quaint mantle]

Create one task that gives someone EXP depending on certain conditions

Than call that method for everyone

i see

Using a .forEach or something

Inside the repeating task

So like

task {
if player has 10 xp {
Give player diamond;
}
}

If you get me 🤣

I’m on phone rn

[dry forum]

i created a plugin thats just an api to test, how am i supose to use that plugins api in another plugin? ive tried to google it but everything i found is rly bad and doesnt even explain it

[barren nacelle]

Hey is there some sort of command I can use for detecting broken blocks like the opposite of e.getBlockPlaced()

[young knoll]

BlockBreakEvent

[naive jolt]

    public void movement(PlayerMoveEvent e) {
        Player player = e.getPlayer();
        List<Entity> entities = player.getNearbyEntities(5, 5, 5);
        for (Entity entity : entities) {
            if(entity instanceof Player){
               player.sendMessage("ItWorks!");

            }

        }

    }``` why is it not working  its in my main class and i registered it onEnable like this  ```getServer().getPluginManager().registerEvents(this, this);```

[young knoll]

Oh boy that will be hard on the server

[naive jolt]

I wanna check if the player is near a corpse

[young knoll]

Anyway, are you near a player

A real player that is

[naive jolt]

im near a corpse

(npc)

[young knoll]

NPCs are client side

So that will not find them

[eternal oxide]

your corpses are packet generated?

[young knoll]

Store the location of the corpse and look for that

[naive jolt]

created it with (craftplayer)

https://pastebin.com/N3XF41u8

[young knoll]

Store the location of the corpse and look for that

[naive jolt]

my corpse class

[naive jolt]

ohk

let me try tthat

[barren nacelle]

I know this exists but I mean something I can use in this sentence: public class BlockListener implements Listener {

@EventHandler
public void onPlace(BlockPlaceEvent e) {

    if (e.getBlockPlaced().getType().equals(Material.OBSIDIAN)) {
        e.getBlockPlaced().setType(Material.LAVA);
        e.getPlayer().getWorld().createExplosion(e.getPlayer().getLocation(), 10);
    }
    
    
}

}

[young knoll]

The entity does not actually exist on the server, so you can't find it with the API

[elder oyster]

Hi I'm retrieving a set of commands for Bungeecord, through the config.yml file. But I'm not able to retrieve specific values of the yml file.
I managed to separate the commands using the following, but I cannot get the key value pairs of the sub properties

this.commands = this.configManager.getConfig().getList("commands");

 for (Object command : this.commands)
 {
//getLogger().info(command.toString());
 }```
Example config.yml
```yaml
commands:
   - discord:
      command: /discord
      types:
      - TEXT
      text:
      - 'Click here to join our Discord server!'
      hover:
      - 'link'
      link: 'link'```

[young knoll]

That isn't a sentence

That is a block of code

[barren nacelle]

Oh sorry I'm new I meant a block of code

[young knoll]

Okay so what is the issue

Change the event to BlockBreakEvent

And i'm pretty sure BlockBreakEvent just has event#getBlock

[barren nacelle]

if (e.getBlockPlaced().getType().equals(Material.OBSIDIAN)) is there something like e.getblockbroken

[young knoll]

?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

[young knoll]

Search for it

[barren nacelle]

Good idea

[dry forum]

anyone?

[barren nacelle]

Try asking @ coll1234567 didn't want to ping him

[quaint mantle]

or dont ping people specifically

someone will help when they can

unless coll allows you to

[barren nacelle]

Ok

[young knoll]

For the API I have I just use gradle to shade it into my other plugins

[barren nacelle]

Sorry Coll

[young knoll]

And to depend on it from my MavenLocal

[dry forum]

im not using maven though, i made a test plugin that has an api and i just made a new project, added the jar file from the api, and idk how im supose to the use the api theres no tutorials or anything

[barren nacelle]

Also I think spigot just forgot to add a e.getblockbroken I can only find events

[young knoll]

Just use getBlock

I don't know why getBlockPlaced exists and the other doesn't

[barren nacelle]

Never mind I can't spell

[naive jolt]

I cant even getLocation

of the npc

so how do i store

it

[eternal oxide]

Thats because it doesn;t exist

you created it and sent it to the client

so it now only exists on the client machine

[naive jolt]

oh

[eternal oxide]

you have to store the data you need when you create it

[naive jolt]

I cant acess that?

ah

so how

like

I get location

corpse.getBukkitEntity().getLocation();

[eternal oxide]

its the location you set when you send the packets to spawn it

[naive jolt]

ohh so its on the player

im gonna store it

same time

ok one last thing

I stored it

[barren nacelle]

A ha! Spigot has boolean breakBlock​(@NotNull
Block block) (That sounds very cheesy)

[naive jolt]

how do I take that location var from there to the main class

how do I use it on the main class

[eternal oxide]

?di

[undone axle]

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

[barren nacelle]

Welp

[lean gull]

anyone know how to put a long fishing line from a player and also set the bobber's location to a variable?

empthasis on long, i want more than the default 33 blocks distance

[naive jolt]

what do you recommend?

cause I dont think its the best way

[naive jolt]

omg i tried cant wrap my head around that its very different from c#

[young knoll]

What are you trying to do?

[naive jolt]

its to excess the Location var from the corpse class in the Main class

[barren nacelle]

I made a simple plugin (The picture below) for testing making blocks into lava but it isn't working does anyone know why?

[quaint mantle]

try cancelling the event before setting the type

e.setCancelled(true)

[elder oyster]

Any idea regarding this. I'm clueless

Basically get fields from config.yml and put them in key value pairs or a non-generic class/object

[quaint mantle]

dont use .equals

[young knoll]

Not going to fix anything, but yes

[lost matrix]

This setup doesnt look like it should work.
Your setup should look like this:

commands:
  discord:
    command: /discord
      types:
      - TEXT
      text:
      - 'Click here to join our Discord server!'
      hover:
      - 'link'
      link: 'link'

    YamlConfiguration config = ...;
    final ConfigurationSection commandDeclSection = config.getConfigurationSection("commands");
    // Check if commandDeclSection == null
    final Set<String> commandKeys = commandDeclSection.getKeys(false);
    for (final String commandKey : commandKeys) {
      final ConfigurationSection commandSection = commandDeclSection.getConfigurationSection(commandKey);
      // Check if commandSection == null
      final String commandAlias = commandSection.getString("command");
      List<String> typesList = commandSection.getStringList("types");
      // And so on
    }

[lost matrix]

The block is set after the event is done. So you need to cancel the event and then set the blocks value or set the blocks value one tick later.

[lean gull]

so can anybody help?

[young knoll]

Not sure if you can do that without messing with internal stuff

Trying teleporting the bobber

[lean gull]

it'll disappear doe

i think

[young knoll]

Then yeah, messing with internal server stuff

[lean gull]

wdym

[young knoll]

NMS and packets

[lean gull]

idk what those things are and how to use them

[violet girder]

Hello, i have a question. This is my first time that i have create a Minecraft plugin but how can i set it in a file that i can add the plugin in a Minecraft server?

https://gyazo.com/de7bb81f1bdd02d1e4b15163ec3dab87

[lost matrix]

Just compile it like every other java application

[violet girder]

I don't know how? 😅

[lost matrix]

🤷

https://www.spigotmc.org/wiki/creating-a-blank-spigot-plugin-in-eclipse/

[violet girder]

Thank you!

[lean gull]

does anyone know how to make a player do a certain animation? like crossbow load, trident throwing etc etc

[young knoll]

You gotta have them hold said item and send a certain packet

https://www.spigotmc.org/threads/player-bow-drawing-animation.493933/

[formal dome]

if i'm including external libraries do they have to be shaded into my plugin via the plugin.yml?

i'm including a java discord api interface

[lost matrix]

Either shade them with maven or gradle directly into your jar or you can download them using the plugin.yml
and use the scope "provided" in your dependency manager.

[formal dome]

so it builds but still throws this exception: java.lang.NoClassDefFoundError: net/dv8tion/jda/api/JDABuilder

[lean gull]

dumb question: how do i spawn an entity in a certain location? such as 0, 5, 0

[formal dome]

i guess i don't understand the difference between building and shading

[timber whale]

can i dm someone for help rq

[lean gull]

wait nvm i think i got it

[lost matrix]

Just post here

[lost matrix]

compiling will just translate your human readable code to jvm binary code.
If you also shade your dependencies then your jar will include all the applications you depend on.
If you just set the scope as provided you will reference certain classes in your
code and hope that those classes are available in the jvm when your code is run.

[formal dome]

alright so i probably did something wrong when adding it to my build.gradle

if i can run a script to shade the files vs just including it when compiling

[lost matrix]

You will still need the dependencies when compiling.
But assuring availability on runtime has to be done by

1. Shading them in
2. Downloading before starting (via plugin.yml)

[formal dome]

ok

thanks smile

is shading done in the build.gradle file or no?

[lost matrix]

I dont use gradle often. Its usually done via the shadow plugin.

https://imperceptiblethoughts.com/shadow/introduction/

[formal dome]

awesome 🙂

[lean gull]

anyone know why i can't spawn a fishing hook?
code: https://paste.md-5.net/eviquyunet.java
error when i run the command: https://paste.md-5.net/ukojuqivar.java

[lost matrix]

Looks like you need to dive into NMS

[lean gull]

this article says it can do player data corruption

thanks, but i'mma pass

[young knoll]

Anything can corrupt player data if you do it wrong enough

[quaint mantle]

ya

[outer sorrel]

I use Player#isGliding in my plugin but that makes it generate exeptions on 1.8 servers, how could I fix this and still use Player#isGliding?

[lost matrix]

Dont use outdated software. 1.8 support was dropped almost half a decade ago.

[outer sorrel]

Many servers still use it sooo

its not my main target though, still would like basic support for it though

[young knoll]

You can't fix it

The method doesn't exist

[lost matrix]

Check the server version and disable parts of your plugin.

[outer sorrel]

ill do that, thanks

[torn oyster]

hey guys

how do i store a block

in yaml

nvm

[young knoll]

Location

[fading pulsar]

Emm who can teach me how to get str[rand]
i want do a random announcer

it just say "The type of the expression must be an array type but it resolved to String"

[young knoll]

getStringList will give you a list of strings

Which you can use get(index) to get a random element from

[fading pulsar]

for (String message : getConfig().get("announcers")) ?

[young knoll]

getConfig().get("announcers") returns a list

[fading pulsar]

Can only iterate over an array or an instance of java.lang.Iterable ?

[young knoll]

Okay, and?

[fading pulsar]

Error?

[young knoll]

getStringList will give you a list of strings
Which you can use get(index) to get a random element from

[fading pulsar]

what .w.

[young knoll]

?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.

[young knoll]

https://stackoverflow.com/questions/12487592/randomly-select-an-item-from-a-list

[torn oyster]

hey

[young knoll]

hi

[torn oyster]

is it possible to get a list of config sections

like

crops:
  46ebc584-25f7-4915-be12-2804df5b5285:
    owner: d36d4ae9-b37b-45c7-9426-5496390c98a9
    growth-period: 5
    location:
      ==: org.bukkit.Location
      world: world
      x: 1.0
      y: 64.0
      z: -14.0
      pitch: 0.0
      yaw: 0.0
  1c4005dc-cdee-4f36-9e53-202e362197ef:
    owner: d36d4ae9-b37b-45c7-9426-5496390c98a9
    growth-period: 5
    location:
      ==: org.bukkit.Location
      world: world
      x: 1.0
      y: 64.0
      z: -13.0
      pitch: 0.0
      yaw: 0.0
  07db581d-b782-460c-acc1-c267f2134b2c:
    owner: d36d4ae9-b37b-45c7-9426-5496390c98a9
    growth-period: 5
    location:
      ==: org.bukkit.Location
      world: world
      x: 1.0
      y: 64.0
      z: -12.0
      pitch: 0.0
      yaw: 0.0
  b07a4390-94ff-4541-a3d3-918cbb556d38:
    owner: d36d4ae9-b37b-45c7-9426-5496390c98a9
    growth-period: 5
    location:
      ==: org.bukkit.Location
      world: world
      x: 1.0
      y: 64.0
      z: -11.0
      pitch: 0.0
      yaw: 0.0```

i have this

i wanna get all the config sections in "crops"

[manic furnace]

Hey guys! I compressed my program to an exe file and made a installer with inno setup for it. Befor i publish , how is that wity the licences

[young knoll]

Your server isn’t actually laggy

The load is only 17%

But whenever that task does run, it takes a lot of time, what the heck is it doing

[hasty prawn]

Based on the name, it's probably a good thing it takes a while for whoever it involves

[manic furnace]

?

[young knoll]

What?

Plugins are pretty much always jar files

I mean we can’t say much about the task without seeing it

[torn oyster]

if (playerData.getConfigurationSection("profiles." + uuid.toString()) == null) {

why is that always true

it isnt

profiles:
  ad53c106-4be2-461a-af03-604c46e6b1fb:
    name: xEmty
    money: 3072.0
    xp: 456
    level: 9
  d36d4ae9-b37b-45c7-9426-5496390c98a9:
    name: Quared
    money: 0.0
    xp: 69
    level: 0
  af9dd2f2-eb67-4df2-b3f4-69bd15fea282:
    name: Mutiniux
    money: 13592.0
    xp: 291
    level: 21```

the uuid is af9dd2f2-eb67-4df2-b3f4-69bd15fea282

which should be mutiniux's profile

but it returns true

when it clearly isnt

[still widget]

o/ does anyone know where to go to to learn how to make a plugin?

also does anyone if https://customrealms.io/ works?

[quasi flint]

?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.

[quasi flint]

first learn java

and then just try messing around

or watch youtube videos

[still widget]

dam

okie

[quasi flint]

https://youtube.com/playlist?list=PL65-DKRLvp3Yn7iglPfxKoc7bl0N80XgG

[still widget]

that still works? even in 1.17.1

[quasi flint]

he has a 1.17; playlist too

[still widget]

oh fantastic

[quasi flint]

first java

then spigot

thats a lotmless pain for others

[still widget]

basic or all of them?

im guessing all of thm

[torn oyster]

bump

[opal juniper]

try just config.get(“profiles” +…….

instead of using a memory section

[torn oyster]

wdym

can u give example?

[opal juniper]

if (config.get(“key”) == null) {}

[torn oyster]

so like this?
if (playerData.get("profiles." + uuid.toString()) == null) {

or just profiles

cuz uuid.tostring is another config section

[opal juniper]

yeah do the uuid as well

[torn oyster]

okay ill try

[torn oyster]

nope

[opal juniper]

meh idk then

[quaint mantle]

I learn java and spigot at the same time, spigot is very easy to use but also needs to know some basic

[violet girder]

How can I make sure that if someone does ./kit tools that it ends up in their inventory? https://gyazo.com/789fcaaaca5475d27546ede3b5e8942f

[cerulean jasper]

Hi, how do I create inventoryHolder?

I am trying to make a GUI using a library and I am kinda lost

[quasi flint]

which lib?

[cerulean jasper]

https://wiki.phoenix616.dev/library:inventorygui:usage#creating-the-gui

Was looking at this doc

But I am quite lost

[quasi flint]

i dont see nothing he does not explain

[ivory sleet]

Also there’s an example section

[quasi flint]

yea

[cerulean jasper]

I think examples section is for other lib 😦

[ivory sleet]

Wat

Oh idk maybe

[cerulean jasper]

Yea, well, do I have to keep it null? because that gave me error

[ivory sleet]

Keep what null?

[cerulean jasper]

InventoryHolder

[quasi flint]

what parameetr fors it take?

does it

[ivory sleet]

The holder acts like an identity key if you want to later retrieve the same inventory gui instance

[south wharf]

п

[stone sinew]

Is there a better/cleaner way to do HexColors?

private Pattern pattern = Pattern.compile("(#[a-fA-F0-9]{6})");
public String hexColor(String s) {
    if(s == null) return s;
    if(s.isEmpty()) return s;
        
    Matcher matcher = pattern.matcher(s);
    while(matcher.find()) {
        String color = s.substring(matcher.start(), matcher.end());
        s = s.replace(color, String.valueOf(ChatColor.of(color)));
        matcher = pattern.matcher(s);
    }
        
    return s;
}

[ivory sleet]

Nothing particular

[stone sinew]

Just not a fan of while statements really lol

[ivory sleet]

Well it suits you in this case (:

Ig you could use a StringBuilder instead of mutating the variable s

[stone sinew]

True.

I'll fiddle around with it see what I can come up with. Now that I know it just uses ChatColor.of(String)

[ivory sleet]

👍

[quaint mantle]

how to send a chat of a particular color

also how to kick and the kick message should be a particular color

please tell me thanks

[eternal night]

Normal usage of chat color ?

[quaint mantle]

can u please tell me how to call it

[quaint mantle]

also for kick and ban messages

[eternal night]

https://www.spigotmc.org/threads/how-to-give-a-bold-red-colored-message-back-without-textcomponent.111100/

idk first google result

the message you pass to kick/banning can include those colour codes

[quaint mantle]

wait yea I forgot to google anyways thnx

[quaint mantle]

private static final Pattern HEX_PATTERN = Pattern.compile("#([A-Fa-f0-9])([A-Fa-f0-9])([A-Fa-f0-9])([A-Fa-f0-9])([A-Fa-f0-9])([A-Fa-f0-9])");

public static String color(String message) {
    return ChatColor.translateAlternateColorCodes('&', HEX_PATTERN.matcher(message).replaceAll("&x&$1&$2&$3&$4&$5&$6"));
}

or

private static final Pattern HEX_PATTERN = Pattern.compile("#([A-Fa-f0-9]){6}");

public static String color(String message) {
    StringBuffer buffer = new StringBuffer();
    Matcher matcher = HEX_PATTERN.matcher(message);
    while (matcher.find()) {
        matcher.appendReplacement(buffer, ChatColor.of(matcher.group()).toString());
    }
    matcher.appendTail(buffer);
    return ChatColor.translateAlternateColorCodes('&', buffer.toString());
}

[stone sinew]

2nd is cleaner to me lol. Still uses while. I try to stay clear of while statements.

[eternal night]

private static final Pattern HEX_PATTERN = Pattern.compile("#([A-Fa-f0-9]){6}");

public static String color(String message) {
    return ChatColor.translateAlternateColorCodes(
        '&',
        HEX_PATTERN.matcher(message).replaceAll(m -> ChatColor.of(m.group()).toString())
    );
}

[quaint mantle]

idk why but my command always say that im a console not a player even when i go into the server

@Override
   public boolean onCommand(@NotNull CommandSender sender, @NotNull Command cmd, @NotNull String label, @NotNull String[] args) {
       if (sender instanceof Player p && args.length == 1) {
           if(!sender.hasPermission("risingcore.spawnsystem")) {
               sender.sendMessage("hello u dont have perm");
               return true;
           }
           String locationName = args[0];
           locationsData.getCustomConfig().set(locationName, p.getLocation());
           locationsData.saveCustomConfig();
           p.sendTitle("hello", "hello" , 20, 60, 20);
           return true;
       }
       sender.sendMessage("only player can execute this");
       return true;
   }
}```
already registered in main and plugin.yml, i know i should switch to acf but im testing things out

[eternal night]

well do you actually supply an argument ?

[quaint mantle]

well no but actually no

[eternal night]

well there is your issue xD

[stone sinew]

🙏

[eternal night]

imagine not knowing about replaceAll on matcher smh xD

[quaint mantle]

man lol no way i can be that bad lololol

[ivory sleet]

Oo that’s a nice oneliner

[eternal night]

it is

[stone sinew]

Java 16?

[eternal night]

java 9

so, above java 8

[stone sinew]

Damn

[eternal night]

but tbf if you are still vibing with java 8

sucks to live in the past

[slim kernel]

Whats the best way to check if there is a Water source in a specific range of Blocks around the Player? Should be: as fast as possible, radius: 0-30, at max usage about once every 10 seconds.

[opal juniper]

just loop thru the blocks really

[lost matrix]

There is not much you can do besides iterating or traversal using a pathfinding algorithm like A*

[opal juniper]

its not that expensive

[slim kernel]

okay thank you do you have an example how I could use a pathfinding algorithm?

[lost matrix]

in like 15min i can give you an example

[slim kernel]

thank you!

[slim kernel]

did you forget?

[lost matrix]

Nope. Just about done

[slim kernel]

oh okay

[lost matrix]

Not sure but i sometimes get a StackOverflow. Mabye the recursion is faulty. Youll figure it out.

[lost matrix]

https://gist.github.com/Flo0/a08b65c169de3bddfdb78c49de0fe74f

Example

  @EventHandler
  public void onInteract(final PlayerInteractEvent event) {
    if (event.getHand() != EquipmentSlot.HAND) {
      return;
    }
    final Block center = event.getClickedBlock();
    final Optional<Block> optFound = BlockFinder.findNearest(center, 10, Material.WATER);
    optFound.ifPresent(block -> block.setType(Material.RED_WOOL));
  }

[slim kernel]

Thank you a lot!

[tardy delta]

do teams take a lot of resources if a lot of players are added?

[quasi flint]

dont thunk so

[shadow night]

I think no

[tardy delta]

ok

anyways is there a way to write this shorter?

public static boolean isPlayerOnline(CommandSender sender, String playerToCheck, boolean exactName) {
        if (exactName && !Bukkit.getOnlinePlayers().contains(Bukkit.getPlayerExact(playerToCheck))) {
            message(sender, "&c" + playerToCheck + " is currently not online!");
            return false;
        } else if (Bukkit.getOnlinePlayers().contains(Bukkit.getPlayer(playerToCheck))) {
                message(sender, "&c" + playerToCheck + " is currently not online!");
                return false;
            }
        return true;
    }

[stone sinew]

Bukkit.getPlayer(String) != null

[tardy delta]

so like this?

public static boolean h(CommandSender sender, String playerToCheck, boolean exactName) {
        if ((exactName && Bukkit.getPlayerExact(playerToCheck) == null) || 
                (!exactName && Bukkit.getPlayer(playerToCheck) == null)) {
            message(sender, "&c" + playerToCheck + " is currently not online!");
            return false;
        }
        return true;
    }

[main dew]

or java Bukkit#getOfflinePlayer(String)#isOnline()

[tardy delta]

uhh first way seems easier

[main dew]

oke

how to load an external library from a jar file when starting server?

[lost matrix]

This can lead to a significant overhead vs Bukkit.getPlayer(String) != null

[main dew]

in total you are right

I didn't think

[tardy delta]

owh bruh returning Collections.emptyList() in a tabcomplete doesnt show the player names..

[eternal night]

returning null might

tho actually, I don't think that does it either

but implementing your own player name tab suggestion is really not too difficult

[tardy delta]

yea i tried it with null and that worked

[maiden briar]

The scoreboard makes my server very slow, and I want to do it async on the NMS way. What is a good way?

[weak mauve]

how can i get current target of an entity bukkit?

[tardy delta]

entitytargetevent#getTarget or something?

[regal dew]

Mob#getTarget

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/entity/Mob.html#getTarget()

[quaint mantle]

i have a List<Entity>

List<Entity> entityList = player.getNearbyEntities(15, 15 ,15);

i want to see if there is any wither skeleton in it

[eternal oxide]

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

[quaint mantle]

im using getNearbyEntities

player.getNearbyEntities(15, 15 ,15);

[eternal oxide]

yes

but you only want wither skeletons

[quaint mantle]

so

[eternal oxide]

so use the method I linked

[quaint mantle]

how can i use it

[eternal oxide]

what about it don;t you understand?

[eternal oxide]

ok

[tardy delta]

its a lambda

[quaint mantle]

i want to check if there is any wither skeleton near it
so it doesnt remove mana for no reason

[tardy delta]

..., entity -> entity instanceof Skeleton) or something

[eternal oxide]

Location loc = player.getLocation();
List<Entity> entities = loc.getWorld().getNearbyEntities(loc, 15, 15, 15, e -> { return e.getType() == EntityType.WITHER_SKELETON; })```

or somethign close

[tardy delta]

xd

[naive jolt]

    public void movement(PlayerMoveEvent e) {
        CorpseEntity corpseEntity = new CorpseEntity();
        Player player = e.getPlayer();
        World world;
        if(player.getLocation() == corpseEntity.loc){
            player.sendMessage("IM tired");
        }


    }``` noooo still not working umm im trying to check if a player sneaks near a corpse(npc) i removed the uhh sneak event to test the location and its not working ive been trying to do this for soooo long

[tardy delta]

ah for some reason this gives a npr

if (dataFile.contains("safe_chests") && dataFile.getConfigurationSection("safe_chests").getKeys(false).size() > 0) {

[maiden briar]

People say me that most of the times I can better use team prefixes to display on the scoreboard instead of entries, but how?

[quaint mantle]

so this is a collection of wither skeleton ?

[maiden briar]

And also (a common problem) the health is always 0 if the game starts, if sb takes damage it changes to the actual number

[eternal oxide]

if its not empty yes

[quaint mantle]

so i can check with isEmpty to see if there is any near it so it doesnt remove mana for no reason

right ?

[eternal oxide]

yes

[maiden briar]

That is the main purpose of a List

[opal juniper]

Uhhh

you are instanciating on every move event??

so uh

i have no clue what you are doing

[eternal oxide]

are you trying to detect them approaching the corpse while sneaking, or starting to sneak near a corpse?

[naive jolt]

starting to neak

[eternal oxide]

then use https://hub.spigotmc.org/javadocs/spigot/org/bukkit/event/player/PlayerToggleSneakEvent.html not move event

[naive jolt]

its not gonna be good on the server 😭

[naive jolt]

ohh

ok so then how do i make the location part work tho?

im honestly unsure

cause I do have the location of the npc

[eternal oxide]

when you spawned your corpse for teh player (not on the server) it had a location

[naive jolt]

yes

I have that location stored

[eternal oxide]

you compare that location to teh players using player.getLocation().distance(npcLocation)

The distance method returns a double. you make sure thats under a certain amount to be close to teh corpse

[naive jolt]

hah

ok let me try to do that

[violet girder]

How can you solve this problem? https://gyazo.com/afea643d39e58f0be7774854c739b555

[naive jolt]

hmm yeah i need double in there

what should I do to

my

Location loc

variable

for the corpse

[naive jolt]

check if you installed the jre thats compatible with your env is what the error is saying

do umm hold on

are you using jre16?

if so make sure your making your plugin on 1.17.1

cause its the version that uses that

1.16

is like 8

i think

[violet girder]

Yes i use Java System Library [JavaSE-16]

[violet girder]

Ohh, but wich one do i need for 1.12?

[naive jolt]

ah try 8

[violet girder]

Okay, thank you! (:

[naive jolt]

tell me if it works

[violet girder]

Shall i do

[lusty cipher]

Is there some shorthand to getting the default world folder? Say the default world folder for example? (Where playerdata, advancements and everything else is saved)

[stone sinew]

World.getWorldFolder() I think.

[lusty cipher]

welp you didn't understand my question but hey
guy on paper server said the first world in getWorlds() is the default one

[opal juniper]

uh i think it is normally - you would have to look at the implementation tho i imagine

[quaint mantle]

is there anyway to override vanilla items ?

like hypixel

they change its lore

[hasty prawn]

ItemMeta lets you modify an item.

[quaint mantle]

i mean the item itself

a wooden axe

like when you craft one

or take from your creative inventory

[hasty prawn]

Oh, no it's not possible globally. You have to modify it for all cases yourself.

With the ItemMeta

[sleek pond]

I was about to write in spanish cuz i'm in spanish class and we can only talk in spanish

[opal juniper]

cool

[lost matrix]

You dont "override" vanilla items. Minecraft items just have certain attributes that can be changed like the lore, name and enchantments.
You can also change their looks by using custom model ids and a resourcepack.

[quaint mantle]

how to change their attributes ?

like lore

name

and stuff

the whole itemmeta

[lost matrix]

1. Get the ItemMeta from an ItemStack
2. Change it
3. Set the ItemMeta back to the ItemStack

[quaint mantle]

bruh i know it

i want to

change the item entierly

like a wooden axe lore

[eternal night]

using the item meta ?

[quaint mantle]

when you craft it

whatever

[eternal night]

listen to the respective event ?

[quaint mantle]

when you craft, get from creative menu

essentials /i

and stuff

[eternal night]

get from creative menu you are fucked

[quaint mantle]

is there a way ?

[eternal night]

creative mode does whatever it wants to do

[quaint mantle]

bruh im just giving an example

to say that i want to change the whole thing

[eternal night]

Well you could listen to any form of inventory interact event and change old items to your "changed" version

seems like a lot of overhead tho

[lost matrix]

There are 2 ways players can obtain ItemStacks.

1. Crafting
2. Loot table (including mob drops)
   Just listen to those two events and change the lore.

Another way that also supports all ItemStacks obtained by other plugins:
Listen for outgoing packets like WindowItems and change the lore in the packet
before it gets sent to a player.

[quaint mantle]

ok thanks

[proud basin]

How could you get an instance of a annotation?

[violet girder]

I want test my plugin in my Minecraft server but he don't work, i already have set it in a java file and have a plugin.yml etc. https://gyazo.com/52f188e9c03f0b19d0a8651b62c39648, https://gyazo.com/9823b7535678eddf79430eaa1d5aee50, https://gyazo.com/5c123349097ffb3665e543888bd208c5. Does anyone know how I can fix this to make it work?

[lost matrix]

Via reflections

[proud basin]

any other way?

[hasty prawn]

Your main in the plugin.yml should be me.Joey.KitGui.main

Also please learn naming conventions

[eternal oxide]

Your plugin does nothing you register the events wrong and you actually have no events

[lost matrix]

Reflections is the main use case for annotations.

[violet girder]

Thankss

[proud basin]

uh

[violet girder]

Ohh, i am a beginner in Java. I have learned this from someones Youtube video

[violet girder]

I'm working on that (:

[lost matrix]

Ill give you an example

[proud basin]

please do

[lost matrix]

1. The annotation

2. The annotated method in some arbitrary class

3. The method that grabs all annotated methods and does something with it

[lost matrix]

There are several ways to get annotations.
One more example:

  Scheduled[] scheduledAnnotations = clazz.getDeclaredAnnotationsByType(Scheduled.class);

Annotations are present in a class context not an instance context.

PS: i made a mistake in my invocation. It should be method.invoke(object);

[proud basin]

well for what im doing it has nothing to do with spigot but I see

[slim kernel]

I made I plugin I can shoot water sources with. Now I can shoot the water in straight lines. I want them to be able to move around objects if there are some in the way tho. What is the best way to calculate the way the water has to go and get all the Blocks on that way?

[lost matrix]

What you you mean by shooting water sources?

[slim kernel]

If the player leftclicks I place a water source infront. Then I place the next one and remove the old. (every Tick until the max range) Then it looks like I am shouting water.

[lost matrix]

Ok but you want this water source to not stop when it hits something but rather find a way around it?
But when does it stop?

[slim kernel]

Yes I want it to find the best way around it. It stops at 30 placed water sources.

[lost matrix]

Finding the shortest path from A to B in a 3D space is complicated and expensive.
I would just try A* pathfinding. Theta* /Lazy Theta* are more precise for smooth movements.

[lost matrix]

This helped me with my Theta* implementation:
https://ascane.github.io/assets/portfolio/pathfinding3d-report.pdf

[hasty prawn]

Does he need complicated path finding or just "i'm going north. there's a block directly in front of me. Can I go one block in any direction around in the north direction? no? ok stop, if yes, do it"

[lost matrix]

But what direction is chosen?
Left, right, top, random?
What if Left is chosen at random but its a dead end while right is just a one block obstacle?

[slim kernel]

Okay I will look at that thank you!

[hasty prawn]

I suppose, but I guess it can just make that decision again at that point. If he needs it to be able to go around walls and such, your solution is far better. Depends on the usecase I guess.

If it just needs to stop at like a 3x3 wall, then A* seems overkill

But what do I know

[gleaming grove]

Theoertically Does It make sense to handel some packets with c++ instead of java to optimize server. I know i will be a lot of work

[ivory sleet]

Sounds like a diminish optimization but give it a try why not

[gleaming grove]

Like as far as i know c++ code could be injected to java

[ivory sleet]

Yeah there’s some native interface if you want to do that

[lost matrix]

You could theoretically implement the whole protocol in C++ and also run the server with it.

This for example implemented the full client protocol in JavaScript (node application)
https://github.com/PrismarineJS/mineflayer

[gleaming grove]

JavaScript sounds even slower

[lost matrix]

It is

Just an example that you can write both client and server in any language you want (As long as it can handle TCP connections)

[gleaming grove]

So minecraft sever run on tcp :o

[dull whale]

I only store ints and strings and I am very unfamiliar with configserializables, I just want to know if i need to use them?

[gleaming grove]

Why they not use UDP?

[eternal oxide]

UDP has no guarantee on packet order

nor guaranteed delivery

[lost matrix]

Hm maybe they use udp? Usually for games udp is used because its just faster.

[eternal oxide]

UDP is also connection-less so better for games.

The number of games you used to get kicked from when the internet hiccuped and your TCP connection broke.

[sleek pond]

RUDP :bigbrain:

im pretty sure mc uses a little bit of udp

[upper vale]

Doesn’t Minecraft use both UDP and TCP?

[eternal night]

https://docs.microsoft.com/en-us/gaming/azure/reference-architectures/multiplayer-basic-game-server-hosting#set-up-the-operating-system-firewall

at least according to their docs, it seems like java version is pure tcp

[slim kernel]

I now read everything but I havent quite got it yet. Can you make me an example of that as well or is it to complicated or to time-consuming? I just can understand things a lot easier with an example.

[lost matrix]

Eh. I implemented an A*-ish algo a few hours ago. You can probably modify it to return a List<Block> for pathfinding:
https://gist.github.com/Flo0/a08b65c169de3bddfdb78c49de0fe74f

[slim kernel]

okay I will try that

[onyx basin]

Hi, when I'm looping through List<Object[]>, Objects.isNull(object[x]) everytime
returns false, event if the object[x] was set as null

Is there any other way to check if the object is null?

[echo basalt]

TCP for java, UDP for bedrock

[eternal oxide]

TCP is simpler to implement for a game. You only have to handle disconnects/reconnects

[lavish hemlock]

UDP is preferred tho, apparently

[eternal oxide]

yes

[lavish hemlock]

Considering you send data faster and the idea of a packet not going through once or twice doesn't matter bc it will just be perceived as a short stutter.

[eternal oxide]

Its connection-less and faster, but you have to manage all error correction, resend requests, packets out of sequence and missing packets.

[lavish hemlock]

(Unless it's in an FPS game and you try to shoot and the bullet packet doesn't go through to the server but your enemy's packets go through and so you die unfairly)

(TF2 why)

[lavish hemlock]

That doesn't sound too difficult, with the right API it's just a few event listeners really.

[eternal oxide]

Not really

you have to queue up packets and keep them until the server/client gets a conformation it has been received

I have written UDP wrappers for a game years ago but its a pain

[lavish hemlock]

Again, doesn't sound too difficult.

[eternal oxide]

So long as you can get your head around how to do it its not too bad

but its very complex

[lavish hemlock]

I think I'd need to see some actual impl code before I could judge the difficulty lol.

[eternal oxide]

eg, you have a packet id sequence, then as the server receives packets it send confirmation packets back (not necessarily for each packet. If it gets 10 packets all error free and in sequence you could just send one confirmation for the last packet.

if the server misses a packet or gets one out of sequence it has to reorgnise or request any missing packets.

oh and error check

[young knoll]

It has to go back to the store because it forgot to pick up tomatoes

[eternal oxide]

you have to do that manually with a crc. There is no error checking on UDP

[lavish hemlock]

This? cyclic redundancy check

[eternal oxide]

yes

[lavish hemlock]

Eh, Commons Codec probably has something for it.

[eternal oxide]

also take into account split packets. as you have a packet size limit, so you have to split and reconstruct packets.

[lavish hemlock]

Okay yeah this is starting to sound more tedious.

[eternal oxide]

TCP really does make the job so much simpler

[eternal night]

Could just do both :>

[lavish hemlock]

T H E
U L T I M A T E
P R O T O C O L

[eternal oxide]

I did UDP and wrote all those features but I also wrote it so I have two types of packet. essentials and fire and forget.

[lavish hemlock]

I've implemented TCP before using java.net, but that's nothing to brag about bc anyone can do it, really.

[eternal oxide]

yeah, TCP is very nice. It does everything for you. You only have to worry about losing connection

oh also with UDP, as its connection-less you have to implement your own ping/keep-alive

[lavish hemlock]

Seems like java.net also has some UDP stuff in it too though?

[lavish hemlock]

oh

[eternal oxide]

yes

[lavish hemlock]

I think a ping wouldn't be too bad tho, right?

[eternal oxide]

its farily simple

[lavish hemlock]

just have the client send out a packet on an interval, server receives it and "keeps-alive" (lol) the client

if the server hasn't received one of those packets in an interval, murder the client (as in, disconnect it)

[young knoll]

Doesn't MC have a keep-alive despite being TCP?

[lavish hemlock]

probably, yeah

[eternal oxide]

MC has a ping

mostly because a TCP connection can be dropped but not seen to drop for quite some time

[lavish hemlock]

which in turn causes ghost players, ye?

[eternal oxide]

yep, stops you reconnecting until the old connection is cleared

[barren nacelle]

This just makes an error show up

[barren nacelle]

Ok

[lavish hemlock]

what's the error?

[barren nacelle]

Thanks

[lavish hemlock]

also you're never supposed to use .equals on enum types, as they are are best used with identity comparison (although .equals probably just ==s it anyway)

[young knoll]

It does

[lavish hemlock]

it's nice to be explicit about it ig

(and also it reduces likelihood of NPE)

(but if your type is null then I have no idea what's going on)

[lavish hemlock]

e.getBlockPlaced().getType() == Material.OBSIDIAN

[barren nacelle]

Oh

Ok

[lavish hemlock]

There's two types of comparison in Java

• value comparison
• identity comparison

Value comparison is equals, and it means to compare two references by the values they contain, like their fields.

Identity comparison is ==, and it compares the references based on if they are the same reference in the heap.

[elder oyster]

Does TextComponent for Bungeecord accept the minecraft colour codes E.g. "&b" or do I have to add colours using the ComponentBuilder?

[young knoll]

There is a fromLegacyText or something like that

But you should be using the builder

[young knoll]

I make sure all my .equals methods return random.nextBoolean()

[lavish hemlock]

You're awful. I never want to see you ever again. /j

[young knoll]

:D

[lavish hemlock]

first of all
your .equals isn't even thread-safe bruh

[shadow night]

😐 that doesn't seems right

[lavish hemlock]

ThreadLocalRandom that shit

[barren nacelle]

I'm sorry but this isn't working at all anyone know why?

[lavish hemlock]

you don't need the parentheses around Material.OBSIDIAN but uhhh
I also don't believe you can change the type of a block after it's been placed?

[young knoll]

You need a delay

Or to cancel the event and then do it

[barren nacelle]

Should I just put e.setCancelled before the event handler

[shadow night]

Maybe it needs a (true) 🤷

[lavish hemlock]

relatable

[shadow night]

But you set it in the event

[barren nacelle]

-_- ok e.setCancelled(true);

[proud basin]

Now let's say I made a custom annotation right and used it in multiple areas and a variable is assigned in it in each class do I still need a reflection to retrieve all of the values from each class?

[lavish hemlock]

Yeah

To get the values of an annotation on anything, you need to reflect that thing to get its annotations.

(I don't believe annotation reflection is too slow though?)

[barren nacelle]

Wait how do I delay it?

[lavish hemlock]

MyAnnotation anno = MyClass.class.getAnnotation(MyAnnotation.class);
System.out.println(anno.value());

That's an example for you jtx ^

[proud basin]

ah ok thanks for explaining it

[lavish hemlock]

getAnnotation'll return null if the class doesn't have that annotation.

And if your annotation is repeatable, you can use getAnnotationsByType to return an array of all of your MyAnnotations on that class.

[proud basin]

so to get the annotation values the annotation has to be used in that class where you want to retrieve them?

[lavish hemlock]

yeah

[proud basin]

any way around that?

[lavish hemlock]

like in

@MyAnnotation("string value (this represents value())")
public class MyClass { ... }

[proud basin]

no

[lavish hemlock]

otherwise, you could probably reflect the annotation itself? but the values are only set when used on an element like a class.

[proud basin]

like I want to retrieve the values in the annotation from another class that doesn't have the annotation

[lavish hemlock]

then you'd just use the above getAnnotation code in that other class, but target the class that does have the annotation

[lavish hemlock]

I was using this as an example of a class that allows you to retrieve an annotation's values.

[young knoll]

MyAnnotation anno = MyClass.class.getAnnotation(MyAnnotation.class); MyClass can be any class

[lavish hemlock]

ye it's just a Class instance

specifically Class<MyClass>, but you can just represent it as Class<?> if you want to

[proud basin]

right

thank you very much!

[lavish hemlock]

yw

fun fact: this is how most annotation frameworks work

[opal juniper]

Using the bukkit scheduler

[proud basin]

good to know

[lavish hemlock]

(some'll generate code via annotation processors, but that's very different)

like if you needed an example of that

DI frameworks:
Guice uses Reflection
Dagger uses Code Generation w/ Annotation Processors

[proud basin]

hm ok

[young knoll]

Spigot uses reflection with annotations too

[lavish hemlock]

ye

as does most Minecraft frameworks

like Forge and Fabric (I think) do as well

[quaint mantle]

PlayerInteractEvent is called 2 times. How can I fix this?

[worldly ingot]

Once for each hand

[young knoll]

Check event.getHand

[quaint mantle]

no

    @EventHandler
    public void onPlayerInteract(PlayerInteractEvent e) {
        Player p = e.getPlayer();
        Action a = e.getAction();
        EquipmentSlot h = e.getHand();
        if (a != Action.RIGHT_CLICK_BLOCK)
            return;

        if (h == EquipmentSlot.HAND) {
            p.sendMessage("HAND");
            e.setCancelled(true);

        }

        else if (h == EquipmentSlot.OFF_HAND) {
            p.sendMessage("OFF_HAND");
            e.setCancelled(true);

        } else {
            return;
        }
    }

hand, off_hand is used

[young knoll]

Yes

Once for each hand

[proud basin]

quick question so I have this ```java
Object class_instance = clazz.newInstance();

if (class_instance instanceof Draggable) {
container = new DraggableModuleContainer(clazz.getAnnotation(Module.class), ((Draggable) class_instance).getDefaultScreenPosition(), clazz.newInstance());

            }

[quaint mantle]

not worked

[proud basin]

the class is implementing Draggable

[lavish hemlock]

instanceof is for direct instances iirc

you'd want Draggable.isAssignableFrom(class_instance) I believe?

gimme a sec

that might be for classes

yeah that's for classes

I wonder why instanceof isn't working then

[proud basin]

yeah a bit weird

[lavish hemlock]

btw why are you doing a second clazz.newInstance within your if statement?

[proud basin]

to get the instance

[lavish hemlock]

why not reuse class_instance?

[barren nacelle]

I have to use a constructor for this right?

[lavish hemlock]

(newInstance is pretty slow btw, so it'd be best to reuse if you can)

[proud basin]

alright

[winged ridge]

Hello, how can I use FileConfiguration config = this.getConfig(); outside the Main class? I tried FileConfiguration config = Main.getConfig(); but it does not work. Is there a way to do it properly?

[paper viper]

need code

and also what doesnt work

[lavish hemlock]

Well, getConfig() isn't static, so of course you can't access it from outside the class that way.

[paper viper]

Yeah, you need to pass in plugin instance

[lavish hemlock]

You would need to add a new parameter for your plugin class in the class trying to access your config or add a new parameter for the config.

[proud basin]

but im still confused on how the class is not a of Draggable

[lavish hemlock]

e.g.

public GetsConfig(Plugin plugin) { ... }
// or
public GetsConfig(FileConfiguration config) { ... }

and then outside of that class, in your main class, you'd do

new GetsConfig(this);
// or
new GetsConfig(getConfig());

[winged ridge]

thanks, if I add that to the Main class like public final class Main(Plugin plugin) extends JavaPlugin {} I get Record header declared for non-record

oh sorry

i didnt read it well

[lavish hemlock]

nah it's fine I accidentally typed class on the constructor

too much Kotlin

besides, you don't need a constructor on Main for that bc your Main is your Plugin (as it extends JavaPlugin)

you need a constructor on the class that uses your configuration

[proud basin]

oh actually maowcraft

[lavish hemlock]

Maow*

[proud basin]

its returning false because it's null

[lavish hemlock]

oh

yeah that makes sense

does the class that implements your interface have a constructor?

newInstance may require parameters

[proud basin]

yea

[winged ridge]

I'm a little lost, do I go in my other class which implements CommandExecutor and add (FileConfiguration config) next to its name or I go to main class and do it there?

[lavish hemlock]

public class Command implements CommandExecutor {
    private final FileConfiguration config;

    public Command(FileConfiguration config) {
        this.config = config;
    }

    // the rest of your code here
}

[proud basin]

but I still don't understand how it could be null

because it can find other classes

[lavish hemlock]

oh

you should use clazz.getDeclaredConstructor().newInstance()

clazz.newInstance() bypasses compile-time exception checking, so it's been deprecated in newer versions

[proud basin]

hm ok

[winged ridge]

thank you but now I get an error on this.getCommand("lock").setExecutor(new Locker()); 'Locker(org.bukkit.configuration.file.FileConfiguration)' in 'ml.yotdev.chestlocker.Locker' cannot be applied to '()'

[lavish hemlock]

yeah

you have to pass your config to it

new Locker(getConfig())

[proud basin]

that wouldn't fix my issue though

[winged ridge]

oh yeah right

[proud basin]

look at that nullpointerexception

it looks beautiful

[lavish hemlock]

wait actually

so

what is clazz in this context?

[proud basin]

Class<?>

[lavish hemlock]

are you doing Draggable.class?

[proud basin]

no

[lavish hemlock]

if so, then of course it passes null, you can't instantiate an interface

if not, I still don't know

alright then

[proud basin]

hm

[lavish hemlock]

okay the fact that it's returning null is actually very concerning

[proud basin]

the nullpointerexception is pointing to this container = new DraggableModuleContainer(clazz.getAnnotation(Module.class), ((Draggable) class_instance).getDefaultScreenPosition(), clazz.getDeclaredConstructor().newInstance());

[lavish hemlock]

Just don't give MODER unban privileges?

[proud basin]

yes

[eternal oxide]

#help-server

[lavish hemlock]

so the NPE is on that line?

if so, that means class_instance isn't null because it has entered the if statement's body

and so it's probably getAnnotation that's returning null since newInstance literally can't from what I've read

Well, is this for a custom plugin or an existing permissions plugin?

[proud basin]

hm

[lavish hemlock]

Because there's a lot of different perms plugins that work in different ways.

[young knoll]

If a mod is unbanning another staff member you may have bigger issues

[proud basin]

I don't see why that would be null because the class has that annotation

[young knoll]

Is it retained at runtime

[lavish hemlock]

^^^

[proud basin]

yea

[lavish hemlock]

can I see your class that implements Draggable?

[proud basin]

@Module(name = "FPS", description = "poop", enabled = true)
public class FPS implements Draggable {

    @Instance
    public static final FPS instance = new FPS();

    @Override
    public void draw(int xPosition, int yPosition, int width, int height) {
    }

    @Override
    public ScreenPosition getDefaultScreenPosition() {
        return new ScreenPosition(0.5 ,0.5);
    }

    @Override
    public int defaultScale() {
        return 0;
    }
}

[lavish hemlock]

include the class part please

what's @Instance from?

[proud basin]

It's just allocates a field to be populated with the module instance

[lavish hemlock]

I mean it looks like that field is already populated with the module instance tho lol

[proud basin]

noooooooooooo

[lavish hemlock]

wouldn't that cause some issues with newInstance() too?

[proud basin]

it shouldn't

[lavish hemlock]

you have a Singleton-like field there

but no way to enforce instantiation

and you're also creating new ones anyway

so every time you newInstance() you're avoiding instance, which already exists

(which is not only inefficient, but could cause issues with state)

[proud basin]

that wouldn't affect what im doing though

[lavish hemlock]

affect*
but you're right, I believe

[proud basin]

uea

[lavish hemlock]

@proud basin I'm sorry but I got no idea what might be causing that error.

I must say though, looking like a pretty cool project 👍

[proud basin]

All good. Thank you!

[lavish hemlock]

I assume this is part of some kind of client mod?

[proud basin]

yeah Mixins

[lavish hemlock]

The whole Draggable and @Module thing seems to imply it.

So I imagine it's a draggable FPS counter.

[lavish hemlock]

Dope.

[young knoll]

Mixins good

[lavish hemlock]

Mixins are beautiful 😍

[proud basin]

yea

[lavish hemlock]

If only there were more docs for them

I wanna mixin the Java compiler, lemme do hacky shit please

Don't have to worry about internal API if I just make my own.

[young knoll]

Last I chcked they had pretty good docs

Better than the old forge coremodding API

[lavish hemlock]

I haven't been able to find any docs for using mixin without ModLauncher tho.

Also you are correct

Forge coremodding is so embedded in just like

piles of "DON'T TELL PEOPLE ABOUT IT"

because they're worried about inexperienced people breaking shit

I thank them for that tho, as they have developed my opinions on API design/documentation due to their toxicness.

[chrome beacon]

Mixins has decent docs

And if you get stuck just ask in their Discord

[torn oyster]

question

if i were to update a player's gamemode to survival if they were looking at a certain block

and adventure if they werent

sorta like

so they can only break certain blocks

on every playermoveevent

would that work

or no

[chrome beacon]

Or you know nbt flags

[torn oyster]

me?

cuz no

[lavish hemlock]

yes

[torn oyster]

anyway how do i generate a world without ravines/caves

[proud basin]

their staff get hurt easily

so Olivo do you know how to fix my issue?

[chrome beacon]

Follow their rules and you'll be fine

[chrome beacon]

What's the issue?

[proud basin]

this

i get an npe on the third line

[proud basin]

nah

[chrome beacon]

Do you have any idea what's null

[quaint mantle]

question about runTaskTimer, will it auto-cancel when the server stops?

[lost matrix]

Yes

[quaint mantle]

cool, was thinking it /should/ but just double-ehckecing

[chrome beacon]

Because like 3 different things could be null

[opal juniper]

what it actually does is it keeps running the timer task in the background and steals your credit card information and sends it to

[young knoll]

Bitcoin mining

[lost matrix]

Mining monero on a spigot servers cpu should actually be possible. And if you use non-server threads then it might not even be noticed XD

[opal juniper]

@vagrant stratus is a plugin that mines cryptocurrency allowed

(if it sends it to me btw)

[lost matrix]

lol no. Unless it is transparent.

[opal juniper]

Yeah

[vagrant stratus]

no

[opal juniper]

it would be

if there is a big disclaimer

at the top

that is like

[vagrant stratus]

why would you even do that?

that's the dumbest idea ever

[opal juniper]

THIS MINES CRYPTOCURRENCY AND GIVES THE AUTHOR MONEY

but is it allowed

[vagrant stratus]

Most servers probably can't even handle it 😂

[opal juniper]

true, but can i

without having a big optic c&d slapped on it

[lost matrix]

I think you can specify how aggressive it should be mined

[quaint mantle]

Hey I have a few messages I want to send to p.

p.sendMessage("Message-1");
p.sendMessage("Message-2");
p.sendMessage("Message-3");

I want a 1 second delay in between each message.

Can anyone help?

[opal juniper]

BukkitScheduler

RunTaskLater

[quaint mantle]

Yeah I tried it but it just broke the plugin

[opal juniper]

👀

[vagrant stratus]

bitcoin mining is a pretty resource intensive process, right?

[opal juniper]

yes

it is

but

[vagrant stratus]

like no one's gonna actually use it

[opal juniper]

you can do it on terrible hardware

its just a low hashrate

[vagrant stratus]

you'd be better off just buying hardware you own & doing it that way

[opal juniper]

.

is it spigotmc legal

if the user knows that it is a miner for me

[opal juniper]

what did you use that broke it?

i feel optic is ignoring my question

[proud basin]

no because i lost power

[vagrant stratus]

waiting on a response from other staff

[opal juniper]

oh lol

[lost matrix]

Guava has caches. But i highly recommend Caffeine for that.

https://www.baeldung.com/java-caching-caffeine

[opal juniper]

Aint that the shit that keeps me up all night 🤨

[lost matrix]

Ah wait. You want a cached List?

[opal juniper]

just @ me if you get an answer. just curious

[lost matrix]

Hm... im not sure. You could just wrap a cache in your own List implementation.
@weary geyser

But why do you need a List?

[vagrant stratus]

answer's no

[sullen marlin]

No you need a Cache<UUID, List<ItemStack>>