help-development

[tender shard]

also you should look into encapsulation instead of making all your fields public

Hub.getInstance().getPrefix()

the only reason when it's okay to use a public field imho is when it's a constant

like Collections.EMPTY_LIST

[echo basalt]

Delet this

[kind hatch]

I think my brain isn't working right now.
I have this item I'm trying to make translatable, so I made this section in the config. I'm trying to update the lore in a loop, but I am ending up with duplicate lines. This is the section of code I'm working with right now. https://paste.md-5.net/esosimilib.js

I'm trying to use the values in that one list to update strings while working with another list that isn't the same size.

[lethal roost]

ok uh
basically what i'm trying to do is i'm trying to take a value from a config option in my config file and use that in my handler
except that my code in the beginning looks a bit different than the tutorials i find online, so how would i go ahead to do this?

i know why i'm getting the error, it's just that idk how to fix it and run it

[tender shard]

what exactly is the problem? BTW I think it's not very clean to register the listener in the listener's constructor. the listener shouldn't be reponsible for registering itself

oh you mean that you cannot access "plugin"? That's because you never declared any field called plugin

public class MyListener {
  private final MyPlugin plugin;
  
  public MyListener(MyPlugin plugin) {
    this.plugin = plugin;
  }
  
  ...
}

alternatively, just set "config" to "plugin.getConfig()" in the constructor

public class PlayerHeldItemHandler {

  private final FileConfiguration config;

  public PlayerHeldItemHandler(HeavyWeapons plugin) {
    this.config = plugin.getConfig();
  }

caching the config object though is not a good idea if you want to have a reload command

[lethal roost]

i'm just trying this out one step at a time, i just want to be able to change the material that the code is gonna work around
so would it look something like this?

[tender shard]

yes, that should work fine

[lethal roost]

alright, tysm!

[tender shard]

but dont forget to now register the listener in your onEnable 🙂

[lethal roost]

yup!

[ocean lion]

public class commandConfigreload implements CommandExecutor {
    public boolean onCommand(CommandSender sender, Command command, String commandLabel, String[] args) {
            Player player = (Player)sender;
            if (player.hasPermission(Hub.instance.getConfig().getString("configreload.permission"))) {
                Colorize.sendMessage(player,  "&7You are reloading the Hub Config");
                Hub.instance.reloadConfig();
                return true;
            } else {
                Colorize.sendMessage(player, Hub.instance.NO_PERMISSION);
            }
        return true;
    }
}

any idea why this isnt reloading the config?

Gives no errors and message works fine

[tender shard]

it does reload the config

but you cached the config values and never updated your cached stuff

if you do stuff like this:

String asd = getConfig().getString("asd");

and you then reload the config, the "asd" variable deosn't care about that, of course

you'd have to do asd = getConfig(...) again

(caching config stuff is mostly useless anyway - you can just directly get it from the config everytime)

[ocean lion]

but I dont want to reload the whole server to change some letters in the config n0?

[humble tulip]

u dont have to

just update the variables that store config data

[tender shard]

exactly, that's why you shouldnt cache the stuff again

[humble tulip]

create a class of config paths

with public static final strings

and use that to get stuff every time

[tender shard]

I usually don't even bother about that

[humble tulip]

i make typos 😦

[tender shard]

that's why I just do this

[humble tulip]

that's what i meant

[tender shard]

then I just do ```java
entity.setName(main.getConfig().getString(Config.ENTITY_NAME));

[tender shard]

ooh I misread

yeah

[quaint mantle]

in java is a method the same thing as a function?

[humble tulip]

yes

[tender shard]

no

[quaint mantle]

ohh ok ty

oh

what

[tender shard]

a Function is a functional interface

well

[humble tulip]

well a method is a function in the programming sense

[tender shard]

yeah

[humble tulip]

not a java Function

[tender shard]

TL;DR: what other languages call "function" is called "method" in java

[quaint mantle]

in python a function allows you to run code from inside the function

is that the same thing

[humble tulip]

yes

[quaint mantle]

ok ty

so theres no such thing as a function in java then

[tender shard]

there's also a functional interface called "Function" in java so yo uishould just call that thing you're talking about a method

[humble tulip]

there is the Function interface

[tender shard]

there is, but it's called Method

public void doSomething() {
  // do something
}

that is a method

[quaint mantle]

i see

ty

[lethal roost]

k pulled another dumb and internet didn't work again
so i have material: "WOODEN_AXE" in the config.yml
how do i have the code use that value in the line of code in the first picture?

[humble tulip]

you mean how do you get the WOODEN_AXE string?

[lethal roost]

pretty much yeah

the Material.WOODEN_AXE is an enum, right?

[humble tulip]

getConfig.getString("material")

thats to get WOODEN_AXE as a string

[tender shard]

Material woodenAxe = Material.valueOf(getConfig().getString("material"));

[humble tulip]

u can then use Material.valueOf to get a material from string as alex said

[lethal roost]

ah ok, ty guys

[quaint mantle]

another thing

when u say this for example x.toUpperCase(). what is the word for the stuff that comes after the .

[tender shard]

method

[humble tulip]

. the method?

[quaint mantle]

but a method is what u told me

[tender shard]

and this is how to invoke a method

[humble tulip]

^

[quaint mantle]

oh

im confused

[tender shard]

public String toUppercase() {
  return /* something */;
}

^ this is a method declaration

myString.toUppercase();

and this is an invocation of that method

?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.

[quaint mantle]

is calling for a method and invoking a method the same thing?

[humble tulip]

yes

[kind hatch]

call, invoke, execute. They all mean the same thing.

[quaint mantle]

so in python its like this

def func1():
  print("Hi")

func1()

Is the func1() invoking the function?

[tender shard]

yes

[humble tulip]

yes

[quaint mantle]

oh ok

[tender shard]

but you cannot compare python to java at all

[quaint mantle]

ik but its easier for me to learn

for now

[tender shard]

you should not try to learn java by comparing it to python

[tender shard]

you should rather check out these links

[quaint mantle]

alr

ty

[tender shard]

java is strictly typed and heavily object orientated

that's quite different from python

for example, you cannot just define a method somewhere. a method ALWAYS belongs to either a class, or an instance of a class

[humble tulip]

from inside a class, you dont need to invoke the method on anything since it invokes it on itself or "this" by default

however, from outside the class, you invoke the method on an object

hence why you do someObject.someMethod()

[tender shard]

public void removeFromStat(MyClass this, Stat stat, double amount) {
  this.addToStat(this, stat, -amount);
}

to make the confusion complete: this is the same thing lol

[quaint mantle]

python

@classmethod

[humble tulip]

i never knew this was a thing

but why is it a thing?

isnt this always accesible anyway?

[quaint mantle]

thats not valid java

it was an example

[humble tulip]

i think it is?

[quaint mantle]

you cant name a variable this 💀

[tender shard]

it is valid java

JLS 8..4.1 receiver parameter

[humble tulip]

intellij isnt mad

[quaint mantle]

no fucking way

[humble tulip]

its dumb right

[hasty prawn]

but why

[humble tulip]

BUT WHY

[quaint mantle]

WHY

[tender shard]

class Test {
    Test(/* ?? ?? */) {}
      // No receiver parameter is permitted in the constructor of
      // a top level class, as there is no conceivable type or name.

    void m(Test this) {}
      // OK: receiver parameter in an instance method

    static void n(Test this) {}
      // Illegal: receiver parameter in a static method                         

    class A {
        A(Test Test.this) {}
          // OK: the receiver parameter represents the instance
          // of Test which immediately encloses the instance
          // of A being constructed.

        void m(A this) {}
          // OK: the receiver parameter represents the instance 
          // of A for which A.m() is invoked.

        class B {
            B(Test.A A.this) {}
              // OK: the receiver parameter represents the instance 
              // of A which immediately encloses the instance of B 
              // being constructed.

            void m(Test.A.B this) {}
              // OK: the receiver parameter represents the instance 
              // of B for which B.m() is invoked.
        }
    }
}

https://docs.oracle.com/javase/specs/jls/se8/html/jls-8.html#jls-8.4.1-220

[humble tulip]

uhm wtf is that

[tender shard]

receiver parameter

[desert loom]

good thing that it's implicit

[humble tulip]

@smoky tinsel

oh shit thats a person

[tender shard]

their own fault if they name themselves like this lol

[quaint mantle]

receiver but no transmitter arguments

[humble tulip]

if an inner class is not static, does that mean a class instance is created for each instance of the outer class?

[tender shard]

if an inner class is not static, it means you cannot create it without the outer class

[hasty prawn]

can someone kill me

[humble tulip]

nice

is that jitpack?

[hasty prawn]

It's fuckin Dynmap

[quaint mantle]

30 minute build 💀

you better be using more than one thread to build all of that

otherwise you're the fool

[humble tulip]

that looks absolutely stupid

[quaint mantle]

it is

[kind hatch]

You can do that??
new Test().new Inner();

[quaint mantle]

i didnt think you could either

[humble tulip]

if the inner is not static

it looks liek a method with a space

[tender shard]

how else would you create an instance of the inner class?

[humble tulip]

ok fine it exists but usecase?

[tender shard]

you need an instance of Inner

[humble tulip]

i feel like that could be fixed with a public static inner class and a getter method

[kind hatch]

I have yet to see someone have a need to do that. It makes sense the more I look at it, but it just looks weird.

[tender shard]

if the inner class was static it couldn't access any instance members of the outer class

[humble tulip]

you can pass the outer class instance to the inner one via the constructor

like an inner builder class kinda ig

[tender shard]

you could also do it the proper intended way though 😄

[humble tulip]

nah fuck that

it looks weird

[kind hatch]

Hmm, I got the duplicate lines fixed, but now I'm running into an issue with the values being incorrect.

[humble tulip]

?paste again

[undone axle]

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

[humble tulip]

did u use ternary operator?

[kind hatch]

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

[tender shard]

I got more stuff you won't like @humble tulip @quaint mantle

[quaint mantle]

Ok but thats useful tho

[humble tulip]

wait

[quaint mantle]

wait

[humble tulip]

uhm

[quaint mantle]

the two type parameters are of the same name?

[tender shard]

😄

[humble tulip]

why is there a .before <>

[quaint mantle]

calling doSomething with <T>

which is handy

[tender shard]

because the <String> applies to doSomething

[quaint mantle]

for when working with arrays and whatnot

[humble tulip]

OHH

[tender shard]

the <T> at the class is unneeded in this example

could also be like this

[humble tulip]

goddamnit

i wanna see an entire program/plugin written with wack code

[humble tulip]

how did that remove duplicated code?

[tender shard]

this is for example also sometimes in (craft)bukkit

    static Wrapper<ImmutableMap<String, ?>> newWrapper(@NotNull ConfigurationSerializable obj) {
        return new Wrapper<ImmutableMap<String, ?>>(ImmutableMap.<String, Object>builder().put(ConfigurationSerialization.SERIALIZED_TYPE_KEY, ConfigurationSerialization.getAlias(obj.getClass())).putAll(obj.serialize()).build());
    }

[kind hatch]

Not duplicate code, duplicate lines of text. Compare it to the original paste.

[tender shard]

that's org.bukkit.util.io.Wrapper

[humble tulip]

sorry but what's the problem?

the 2 pastes do the same thing?

[kind hatch]

Original problem here. #help-development message
Right now, I fixed the duplicate lore lines I was getting.
I'm currently trying to figure out why the replaced values aren't correct.

[humble tulip]

cuz if the any indicator is enabled you put a checkmark

u need to do if indicator.isEnabled, s.replace(indicator.getPlaceHolder, "checkamrk");

ur not checking if the placeholder ur replacing is for the indicator that is enabled basically

[humble tulip]

^^

[kind hatch]

Well I don't have a getPlaceHolder method in my Indicator class.
Originally I was just adding the lore to a list and I could just do this.

for (Indicator indicator : indicatorList) {
  if (indicator.isEnabled()) {
  indicatorLore.add(" &a&l" + PluginConstants.CHECKMARK + " &a" + TextUtils.capitalizeFirstLetter(indicator.getType().getValue()));
  } else {
    indicatorLore.add(" &c&l" + PluginConstants.X + " &c" + TextUtils.capitalizeFirstLetter(indicator.getType().getValue()));
  }
}

Now I need to take a variable from an existing list and replace it with whether or not it's enabled.

[humble tulip]

do indicators have a name?

[kind hatch]

They have a type tied to them, but I just tried that and it only worked for the first indicator in the list.

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

[humble tulip]

LOL

one sec

updateLore.add(s.replace("%" + indicator.getType().toString().toLowerCase() + "_indicator%", indicator.isEnabled() ? " &a&l" + PluginConstants.CHECKMARK + " &a" : " &c&l" + PluginConstants.X + " &c");

comment the entire inside of the indicators loop and put that one line

[kind hatch]

This is what I get when I use that.

[humble tulip]

oops

ah that makes sense

ok one sec

s=s.replace("%" + indicator.getType().toString().toLowerCase() + "_indicator%", indicator.isEnabled() ? " &a&l" + PluginConstants.CHECKMARK + " &a" : " &c&l" + PluginConstants.X + " &c");

[kind hatch]

Yea, just changed it to that and it works.

[humble tulip]

and add to the lore outside the loop

[kind hatch]

I'm a little confused though. Why is it that it wouldn't work with what I had before?

[humble tulip]

with this?

[kind hatch]

With this: https://paste.md-5.net/iquruvequc.pl

[humble tulip]

cuz ur checking if the indicator is enabled

lets say the list of inidcators is [CHAT,TITLES,BOSSBAR]

CHAT alone is enabled

now let's iterate

oh and the lore goes like
BossBar
Chat
Titles

so we iterate the lore and were currently in the for loop with BossBar as our lore string,
we noew iterate the Indicators first of which is Chat

chat is enabled

so ur code will set BossBar to true

or enabled

[kind hatch]

Oh wait. I think I see now.
If any one of them was enabled, I was replacing every single placeholder instead of just the one.

[humble tulip]

since u dont check that what ur replacing is of the current indicator

yes

[kind hatch]

Man, tonight is not the night. I've been monotonously updating my code to use values from a config and when I got to this, my brain just died.

[lunar shuttle]

I know about Block#breakNaturally(), but is it possible to 'force' the player to break a block so that their tool is damaged as well?

With unbreaking and whatnot

[humble tulip]

player.breakBlock

[humble tulip]

^^

[distant wave]

Is there any function to get type of material? Like if material is iron axe it would return axe

[waxen plinth]

Can always do type.toString().endsWith("_AXE")

[distant wave]

Oh nice

[lunar shuttle]

Thank you

[formal bear]

ik i changed that just to test

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

[distant wave]

Yes but if its block like grass block and item like stick?

[waxen plinth]

Not sure what you mean

[formal bear]

if you use _axe there will be only axes

[distant wave]

Yy

But i want to make it for all other items

[waxen plinth]

That's still really vague

[formal bear]

Create List of Materials then .contains

[waxen plinth]

If you're gonna be using contains, use a Set and not a List

[formal bear]

jst to let you know, everything works except for shouldDrop method and amount idk why

[humble tulip]

are you making weighted random stuff?

[strong parcel]

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

[humble tulip]

also can i see what your chance values look like?

[humble tulip]

use BukkitRunnables instead of TimerTask

[formal bear]

Amounts in int, chance in double

      chance: 0.2
      min-amount: 1
      max-amount: 3

[strong parcel]

I didn't even have to explain 😆

[humble tulip]

well it should be random.nextDouble < chance and are you sure that shouldDrop is the issue?

[tardy delta]

Use the scheduler lol

[humble tulip]

he already used TimerTask which is more similar to BukkitRunnable so i told him to use that

[tardy delta]

🤔

[sharp flare]

How does one trigger an advancement at top right with custom message, etc

[formal bear]

the randomize drop work, then it got stuck on chance so amount does not even load

[humble tulip]

huh?

[formal bear]

it displays item from random index, but shouldDrop returns true always

something is wrong with shouldDrop function or idk

//this part works
        DropItems randomItem = dropListItems.get(randomList);

        if (!event.getBlock().getType().equals(Material.STONE)) return;

then it get stuck in this if
        if (randomItem.shouldDrop(random)) {

            player.sendMessage("item" + random);
            block.breakNaturally();

        }

[humble tulip]

random.nextDouble < chance should not always return true unless chance is either very close to 1 or greater

[formal bear]

i understand ;/ but it look at the return

[humble tulip]

cuz when it doesnt drop it doesnt print?

wait where are u printing?

in or out the if?

[formal bear]

i can do both sec

[humble tulip]

dont do both

just outside the if

[formal bear]

so shouldDrop(random) returns always true ;/

why

ThreadLocalRandom random = ThreadLocalRandom.current();

[humble tulip]

one sec

doenst always give true

[formal bear]

    public boolean shouldDrop(Random random) {

        return random.nextDouble() < chance;

    }

I'm passing the random from StoneBreak method

So why does it not give the same result? There's typo somewhere?

[humble tulip]

did u extend random and make it always return 0 or something?

cuz that's stupid no one would do that

[formal bear]

    @EventHandler
    public void onStoneBreak(BlockBreakEvent event) {

        Player player = event.getPlayer();
        Block block = event.getBlock();
        ThreadLocalRandom random = ThreadLocalRandom.current();
        int randomList = random.nextInt(dropListItems.size());

        DropItems randomItem = dropListItems.get(randomList);

        if (!event.getBlock().getType().equals(Material.STONE)) return;

       if (randomItem.shouldDrop(random)) {

        ItemStack item = randomItem.makeItem(random);

        player.sendMessage("Should drop: " + randomItem.shouldDrop(random) + ", Item: " + item.getItemMeta().getDisplayName());
}

randomList works so random.nextInt gets one item from range Ayo, Essa, Bruh

[humble tulip]

  @EventHandler
    public void onStoneBreak(BlockBreakEvent event) {

        Player player = event.getPlayer();
        Block block = event.getBlock();
        ThreadLocalRandom random = ThreadLocalRandom.current();
        int randomList = random.nextInt(dropListItems.size());

        DropItems randomItem = dropListItems.get(randomList);

        if (!event.getBlock().getType().equals(Material.STONE)) return;

       boolean drop = randomItem.shouldDrop(random);
       player.sendMessage("Should drop: " + drop );
       if (drop) {

        ItemStack item = randomItem.makeItem(random);
    }
}

[formal bear]

now its always false 🙃

[humble tulip]

let me see shouldDrop again?

[formal bear]

    public boolean shouldDrop(Random random) {

        return random.nextDouble() < chance;

    }

[humble tulip]

print chance

and random.nextDouble

public boolean shouldDrop(Random random) {
        double num = random.nextDouble();
        sout(num + " , " + chance);
        return  num < chance;

    }

something like that

[formal bear]

Got it thanks

It works now

😋

[humble tulip]

what was it the chance?

[quaint mantle]

// called asynchronously
@Override
public boolean canInteractWith(@NotNull Player ownedPlayer, @NotNull Player player) {
    ChatRange range = this.config.getLocalRange();
    
    synchronized(this) {
        return player.getNearbyEntities(range.getX(), range.getY(), range.getZ())
                     .stream()
                     .anyMatch(e -> e == ownedPlayer);
    }
}

is synchronization bad in this instance

i dont want to cause a deadlock or race condition on the entity "map" or whatever the fuck handles it

[humble tulip]

are u doing it async?

[quaint mantle]

its called from AsyncPlayerChatEvent

so yeah

[humble tulip]

ohhh

[formal bear]

yeah shouldDrop had no access to chance lol ;-;

[quaint mantle]

i would ping 7smile7 but hes offline

[humble tulip]

didnt know it was in that event

just saw the //called async

[humble tulip]

honestly i doubt

i heard it's hard to do that

[quaint mantle]

not impossible tho

[humble tulip]

i thought i understood what caused it

then was told that i didnt

[quaint mantle]

when a CPU attempts to do two operations at once

it can spur out something completely unwanted

or freeze

(deadlock)

[humble tulip]

btw why dont u use Bukkit.getOnlinePlayers

[quaint mantle]

because they are both waiting for eachother

[humble tulip]

since that returns a copy

should be thread safe then

[quaint mantle]

im getting the players near this player

what if there are 15,000 players online?

[humble tulip]

uhhhh

if there are

there'es probably more entities

[quaint mantle]

in that specific area?

[humble tulip]

one sec

[quaint mantle]

also

im not checking .equals

it is a memory location check

very speedy, no need to worry about the speed of comparison

[humble tulip]

think this throws an exception

[distant wave]

Any way to check when player held item changes? Should i use scheduletr or is there any event

[quaint mantle]

for what reason?

[quaint mantle]

thats why its in the synchronized block

i havent tested it yet

[humble tulip]

ok i may be asking a dumb question here

but doesnt synchronised mean 2 threads cant execute it at once

it doesnt mean that it's magically on the main thread?

[quaint mantle]

true

it waits

thats why

[quaint mantle]

.

im unsure

if i synchronize it, idk if asynccatcher will recognize it

im testing it rn

[humble tulip]

it would

[quaint mantle]

probably

[humble tulip]

nah i dont think thread jumping is that easy

[quaint mantle]

https://hub.spigotmc.org/javadocs/spigot/org/bukkit/event/player/PlayerItemHeldEvent.html

[humble tulip]

btw what i was getting at by suggesting to use players and filter them instead of using getnearbyentities is that interanlly, getnearbyentites probably gets all entities in the world and filters them

[quaint mantle]

does it

look

[humble tulip]

i dont see how else getNearbyEntities could get the nearby entities

[quaint mantle]

true

probably by chunks

[humble tulip]

code is straight up unreadable

[quaint mantle]

fair enough

[humble tulip]

i tried to figure it out but couldnt understand

it seems as if it does iterate all tho

[quaint mantle]

thats slow

im sure it stores chunks

why not do it that way?

[humble tulip]

wait no i think it does use chunks

[quaint mantle]

i was about to say

wait

what am i doing

just get the distance from the players

my code was this before because i didnt haved the ownedPlayer parameter

forgot to update the code lol

[wet breach]

getnearbyentities uses chunks

it doesn't get all the entities in the world

[quaint mantle]

hello frostalf

[wet breach]

so, when you use getnearbyentities it will get the entities in the chunk in the location you have

[humble tulip]

but that cant be called async

[wet breach]

it can be if you have a chunksnapshot

[quaint mantle]

i fixed it

it doesnt matter

[humble tulip]

ohh

wait

LOL

yeah u can just compare the distances

[quaint mantle]

@wet breach ive already asked you this before

but are you a fan of tool

[wet breach]

tool?

as in the band?

[quaint mantle]

yeah

[wet breach]

they are alright

I don't have a particular favorite band

[quaint mantle]

who do you listen to normally

im becoming a rock man

[distant wave]

Kk

[distant wave]

The method would be:

@EventHandler
public void onPlayerItemHeld(PlayerItemHeldEvent event) {}

Like this?

[quaint mantle]

yeah

[distant wave]

Kk

[desert tinsel]

what I need to put here if I have an uuid as string

[quaint mantle]

UUID.fromString(str)

probably

[desert tinsel]

Thanks

[crude cobalt]

How to give a strength effect to a player (Strength effect is not in PotionEffect)?

[crimson terrace]

do you want to give a potioneffect?

[crude cobalt]

Yeah

[crude cobalt]

Best

[formal bear]

Is there a way to force enchantment on itemstack?

or set glint

[summer scroll]

You need to actually put an enchant to the item.

[formal bear]

which enchantment can be applied to every item? for example paper

[summer scroll]

You can apply any enchants to any items (items with ItemMeta) iirc, as long as you add the enchant from the ItemMeta

[formal bear]

Caused by: java.lang.IllegalArgumentException: Specified enchantment cannot be applied to this itemstack
        at org.bukkit.inventory.ItemStack.addEnchantment(ItemStack.java:394) ~[spigot-api-1.18.1-R0.1-SNAPSHOT.jar:?]
        at pl.botprzemek.methods.DropItems.makeItem(DropItems.java:98) ~[?:?]
        at pl.botprzemek.handlers.StoneDrop.onStoneBreak(StoneDrop.java:65) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-api-1.18.1-R0.1-SNAPSHOT.jar:?]
        ... 23 more

[summer scroll]

Are you using ItemStack#addEnchant?

[formal bear]

ah

UnsafeEnchantment

[summer scroll]

yeah that part

need to use ItemMeta instead

[formal bear]

nah just change item.addUnsafeEnchantment instaed of addEnchantment

[summer scroll]

i guess you could do that too

[strong parcel]

I am trying to code a plugin that creates a 10 second window whenever someone joins the server where players can say "wb" and trigger an effect. I figured out how to make the 10 second window, but if a second player joins inside of that window, their welcome time gets cut short.

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

To solve this problem, I decided to create a counter that will detect when a player has joined inside of the window, triggering an if statement that cancels the task that would close the welcoming window.

However, I am having trouble with how to restart the task. Right now, players would be able to say "wb" and trigger the effect forever.

Or did I fix the problem?

My brain at 2:30 in the morning, LOL

[tall dragon]

so all you want is for players to have a 10 second window to say welcome back?

i woulnt do this with a single Runnable for each join tbh

i would have a Map<UUID,Long> storing the player mapped to the time they joined.

[earnest forum]

i would store a central runnable and when a new player joins reset that runnable to a new one

[tall dragon]

then just have an update runnable that runs every say 2-3 seconds to remove any expired entries. also checking this when a player sais 'wb'

[tall dragon]

that will introduce the same problem when multiple players join

[earnest forum]

cancel the one already set then

[tall dragon]

then the one set will have his 10 seconds cut short?

[earnest forum]

yea

[tall dragon]

he doesnt want that tho i think

[earnest forum]

oh wait

thats a bug not feature

my b

[hybrid spoke]

that whatever array you are trying to read the length from is null

[eternal oxide]

why do you not want to use an embeded resource?

I suggest you re-think your design then. Requiring hundreds of yaml files is probably not the best path to take

why not use the db for 100%?

what are you calling a config? Config is generally one file to configure the plugin.

If you are talking about player data, then thats db stuff

what is this "hundreds of files" then?

[hybrid spoke]

[eternal oxide]

all data should be in the db, all config stuff should be in the plugins config.yml

I see nothing there which is deserving of its own config

[hybrid spoke]

this could be all merged

and divided into different sections

[strong parcel]

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

Does anybody know why the if statement would return false the second time a player joins?

Sorry, I had some extra stuff in there so I could diagnose what the problem was

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

[hybrid spoke]

probably a new player instance which is being created

means the list doesnt contains that exact object

[earnest forum]

underscores in fields 😭

no its getUniqueId

[strong parcel]

Thanks, I will give that a shot

[hybrid spoke]

    private int needed_entries;
    private int needed_clicks;
    private int from_seconds;

YES!

doesnt have to be

nope

constants would be uppercase

underscores are totally fine in any variable name

there is no convention which says otherwise

[earnest forum]

it just looks so much better with camel case

[hybrid spoke]

depends

[earnest forum]

personally

[hybrid spoke]

in this case those are config values

so i "underscored" them

[strong parcel]

It worked 😄

[hybrid spoke]

or work for 3 years on the same project and always only add features instead of refactoring

[strong parcel]

I will keep that in mind. Thanks!

[hybrid spoke]

and now its too big to refactor it

so you have to recode it or continue what you did the past 3 years

[harsh totem]

is there an event for enchanting?
ik there is PrepareItemEnchantEvent but I want to listen to when the player presses the enchant button and not when the player is preparing the enchantment

ok thx

[smoky oak]

how do events work in nms?

[eternal oxide]

Events are API not nms

[smoky oak]

can you even react to what the api calls events in nms then?

[eternal oxide]

those are packets not events

If you are looking to use NMS, have a VERY valid reason. Something you can't do with the API

[smoky oak]

I'm aware of that, I'm just a bit curious atm

[eternal oxide]

NMS really is something you should steer clear of unless there is no alternative.

?bootstrap

[undone axle]

Bootstrap Jar
The main spigot-1.18.jar is now a bootstrap jar which contains all libraries. You cannot directly depend on this jar. You should depend on Spigot/Spigot-API/target/spigot-api-1.18-R0.1-SNAPSHOT-shaded.jar, or the entire contents of the bundler directory from your server, or use a dependency manager such as Maven or Gradle to handle this automatically.

Please read the release notes for further information: https://www.spigotmc.org/threads/9-years-of-spigotmc-spigot-bungeecord-1-18-1-18-1-release.534760/#post-4305163

[wet breach]

you should probably do the opposite especially if what you are doing is very minimal. Makes no sense to depend on a large lib for something small

makes sense

?notworking

[undone axle]

"Does not working" is a useless statement. Please describe what exactly is not working, what you expect it to do, and what actually happens. If you get any console errors, also ?paste the entire stacktrace.

[vocal cloud]

I love it when people attempt to use NMS but don't understand how to add it

[eternal oxide]

those are NMS classes. you should use Mojang Mappings to use them

actually, those classes you should not use at all

they are relocatet 3rd party libraries

[wet breach]

they should just be depending on Gson directly

from Guava

[eternal oxide]

yep

[hybrid spoke]

i've added the jar to my artifacts, not working on minecraft server why

[wet breach]

anyways I am off to work

https://tenor.com/view/fancy-penguin-baby-penguin-fancy-penguin-briefcase-gif-15300750

[vocal cloud]

Hit a bigger blunt

[hybrid spoke]

who is blunt

[vocal cloud]

Tbh I don't even have a joke for that

[hybrid spoke]

instructions unclear, hit a random woman on the street

[harsh totem]

Why is the loot always empty?

    public void loot(LootGenerateEvent event){
        ArrayList<ItemStack> collection = new ArrayList<ItemStack>();
        Random random = new Random();
        for (int i = 0; i < random.nextInt(); i++){
            collection.add(getRandomItem());
        }
        event.setLoot(collection);
    }```
getRandomItem() returns random item

when i open chests they're empty

[lost matrix]

This will most probably crash your server now and then

[harsh totem]

why

[golden turret]

bruh

for with Random.nextInt

[lost matrix]

What does random.nextInt() do?

[golden turret]

you must be very lucky for it pick a small number

[lost matrix]

From the javadocs

This means it could be 2 billion at some point

[eternal oxide]

You could end up with 2 billion bits of loot 🙂

actually no

you will only ever have 1

[lost matrix]

hm?

[eternal oxide]

until it locks

when nextInt returns zero

[lost matrix]

Or something negative

Because it returns a random between -2.1b and +2.1b every time the loop made one cycle.
So statistically it will be far less.

[harsh totem]

ok so now I have this but the items in a chest are similar

    public void loot(LootGenerateEvent event){
        ArrayList<ItemStack> collection = new ArrayList<ItemStack>();
        Random random = new Random();
        for (int i = 0; i < random.nextInt(1, 4); i++){
            collection.add(main.getRandomItem());
            random = new Random();
        }
        event.setLoot(collection);
    }```

example:

[lost matrix]

btw the solution here is to add constraints:

int lootAmount = random.nextInt(1, 33); // Will be 1 <= x <= 32
for (int i = 0; i < lootAmount; i++){
  collection.add(getRandomItem());
}

[lost matrix]

Dont call nextInt inside the condition. Its an expression that gets called every time the loop made one cycle.

[harsh totem]

right

[lost matrix]

This means getRandomItem() doesnt really return a random item

[barren bear]

how i overwrite item property like Mixin in fabric
Im just new to spigot

[lost matrix]

Define what you mean by overwrite

[harsh totem]

it does tho

example:

[lost matrix]

Nice. Then your code works

[harsh totem]

all the items are similar

[barren bear]

example like: snowball has limit at 16 snowballs in a slot, now i want to overwrite it to 64

[harsh totem]

i don't want it to be

[lost matrix]

I think thats just how minecraft distributes the items inside a loot container

[lost matrix]

You would need to use reflections for that. And even then you cant be sure that the client wont have weird behavior.
maxStackSize is a property in Item

[sullen canyon]

is that possible to create potion with unusual duration? For example regen potion for 8 seconds

[lost matrix]

Sure

Just modify the PotionMeta

https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/inventory/meta/PotionMeta.html

[sullen canyon]

Thank you, can i also give to player 3 stacked potions?

[odd lodge]

does anybody know why my plugin doesnt work

[smoky oak]

?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. Make sure you use the right channel regarding the topic of your question. Create a thread in case the channel is already in use!

[smoky oak]

youre missing a bit of context

[eternal oxide]

server not turned on?

[lost matrix]

A neutrino hit your pc while compiling and caused a bit error in your jar.

[eternal oxide]

Sun Spots! we are all doomed

[lost matrix]

We need more context. Send your code or explain what you are doing.

?notworking

[undone axle]

"Does not working" is a useless statement. Please describe what exactly is not working, what you expect it to do, and what actually happens. If you get any console errors, also ?paste the entire stacktrace.

[quaint mantle]

i was just reading about those

near-valueless electrons, no?

[quaint mantle]

falsely set off dark matter detectors

[odd lodge]

it basically just tells us this guys coordinates if hes online

[quaint mantle]

thats amazing

[odd lodge]

but if i do /whereisbrandon in chat

it doesnt work

[lost matrix]

Show your JavaPlugin class

[odd lodge]

wdym

[lost matrix]

The class that extends JavaPlugin

I refuse to call it "main" class

[quaint mantle]

LOL

[lost matrix]

Looks

good to me. Is it enabled when you start the server?
Check by typing in

/pl

[quaint mantle]

Wtf

was that intentional

[lost matrix]

If he makes me read code like that then he can read answers like that

[quaint mantle]

💀

[odd lodge]

LMAO

[quaint mantle]

i wanna pin that so badly

[odd lodge]

wait

[odd lodge]

wdym /pl

where

[quaint mantle]

into the command box

[lost matrix]

Thats a command which lists your plugins. Execute it as a player or in console

[quaint mantle]

in your bottom left

[quaint mantle]

try /plugins

[lost matrix]

Are you op

[odd lodge]

i think

[quaint mantle]

are you on a normal minecraft server

[hybrid spoke]

no perms

[quaint mantle]

are you even on spigot

[odd lodge]

that would fix all of my issues

[wispy bridge]

💀

[odd lodge]

im so stupid

oh my go

d

[quaint mantle]

LMAO

[odd lodge]

we dont talk about this

[lost matrix]

wait

[wispy bridge]

Where were you even putting your plugin jar

[odd lodge]

in the plugins thing on the server

[hybrid spoke]

what plugins thing if you started a vanilla server

[wispy bridge]

Aren’t you on a vanilla server though?

[hybrid spoke]

what drugs did you take

[wispy bridge]

Or did you manually make a folder called plugins

[quaint mantle]

he probably created a plugins folder

yeah lol

[lost matrix]

"my pLugIn isNt loAdinG on muy vaNilLa seVer. HEHLP. Why iSnt thIs wörKing"

[eternal oxide]

Thats my laugh for the day. You have to stop now. I'm a married man and only allowed one.

[lost matrix]

F

[quaint mantle]

are you a rock fan

[odd lodge]

no

i did not make a folder called plugins

[tardy delta]

Lmao

[lost matrix]

Wow. Thats ageist.

[odd lodge]

there was already a folder called plugins

[wispy bridge]

?

[odd lodge]

on the server provider

[quaint mantle]

Ok

[hybrid spoke]

alzheimer

[wispy bridge]

Uhhhhhh

Then I guess your server provider is using a vanilla server jar…?

[tardy delta]

Putting the server in the root folder smh

[wispy bridge]

Does /version exist on your server?

[hybrid spoke]

but why would they bait him with a fake plugins folder

[quaint mantle]

evil

[wispy bridge]

It might have been some installation mistake

[odd lodge]

LMAO

[wispy bridge]

Did you install Spigot on your provider then switch it back to Vanilla

[lost matrix]

They probably use the same docker hierarchy and just swap out the jar for all the forks.

[odd lodge]

i think i did yeah

[wispy bridge]

Ah, I guess they’re lazy

[lost matrix]

Did you also type in the commands into console?

[odd lodge]

thats why i got confused because i forgot i went back to vanilla

wdym commands

what commands

when i was doing /plugins i did it in chat

[lost matrix]

yeah just switch to spigot then

[odd lodge]

yeah

ok ty

[hybrid spoke]

s

[lost matrix]

#help-server

[wispy monolith]

oh man, it's been a long time.
How should i send a message to the console saying that the plugin has started?

I even forgot how to do this

[hybrid spoke]

you should not, spigot does that for you

[odd lodge]

how do i make it so it doesnt auto fill

with an extra whereisbrandon

[quaint mantle]

Dont

deal with it

[wispy monolith]

it does?

[lost matrix]

You dont. Spigot already does that. But if you want to send a message anyways you should
use the logger for that. Something like

getLogger().info("--------------------------------------------------------------------------")
getLogger().info("
╔═══╗╔═══╗╔═══╗╔╗       ╔═══╗╔╗   ╔╗ ╔╗╔═══╗╔══╗╔═╗ ╔╗    ╔═══╗╔═╗ ╔╗╔═══╗╔══╗ ╔╗   ╔═══╗╔═══╗
║╔═╗║║╔═╗║║╔═╗║║║       ║╔═╗║║║   ║║ ║║║╔═╗║╚╣╠╝║║╚╗║║    ║╔══╝║║╚╗║║║╔═╗║║╔╗║ ║║   ║╔══╝╚╗╔╗║
║║ ╚╝║║ ║║║║ ║║║║       ║╚═╝║║║   ║║ ║║║║ ╚╝ ║║ ║╔╗╚╝║    ║╚══╗║╔╗╚╝║║║ ║║║╚╝╚╗║║   ║╚══╗ ║║║║
║║ ╔╗║║ ║║║║ ║║║║ ╔╗    ║╔══╝║║ ╔╗║║ ║║║║╔═╗ ║║ ║║╚╗║║    ║╔══╝║║╚╗║║║╚═╝║║╔═╗║║║ ╔╗║╔══╝ ║║║║
║╚═╝║║╚═╝║║╚═╝║║╚═╝║    ║║   ║╚═╝║║╚═╝║║╚╩═║╔╣╠╗║║ ║║║    ║╚══╗║║ ║║║║╔═╗║║╚═╝║║╚═╝║║╚══╗╔╝╚╝║
╚═══╝╚═══╝╚═══╝╚═══╝    ╚╝   ╚═══╝╚═══╝╚═══╝╚══╝╚╝ ╚═╝    ╚═══╝╚╝ ╚═╝╚╝ ╚╝╚═══╝╚═══╝╚═══╝╚═══╝
");
getLogger().info("----------------------------------------------------------------------------")

Admins love those

[wispy monolith]

oh cool, thx

[last sleet]

haha this is so true

[tender shard]

yes, I'm always disappointed when a plugin does NOT spam the console with this

how am I supposed to know that cool plugin was enabled if it doesn't create a 2mb log file with a huge ascii banner

[wispy monolith]

exactly

i would have forgot i had this plugin

[smoky oak]

i tried that once, my compiler made all unicode into ???. Did that change since then?

[tender shard]

imho plugins should call cowsay | lolcat for these sweet banners using a ProcessBuilder and fail to enable if that's not installed

[lost matrix]

XDD

[lost matrix]

Use utf-8 file encoding

You can even do that in 1.7.10

[smoky oak]

k

[lost matrix]

You can also replicate that for newer versions with color gradients.

[hybrid spoke]

and then paste it every 20 seconds with a different text

[smoky oak]

I'm an annoyance not a nuisance

[rare flicker]

what's the new correct way of checking for an item's durability?

(since ItemStack#getDurability() is deprecated)

[tender shard]

get the itemmeta, cast it to damageable

then do getDamage

[lost matrix]

^

[tender shard]

and import the CORRECT DAMAGEABLE

[lost matrix]

https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/inventory/meta/Damageable.html

[tender shard]

there are two

yeah that one. do NOT use the entity one

[vocal pine]

the world will end

[tender shard]

i think we still have a few billion years

but the earth is having a midlife crisis right now

[vocal pine]

that should be reassuring since it's already this old

[tender shard]

that's why it currently engages into selfdestructive behaviour

chasing waterfalls and stuff

[smoky oak]

aaand now theres two of them

[tender shard]

two of what

[smoky oak]

you

[odd lodge]

is it possible to make someone jump

with a plugin

?

[smoky oak]

set their upwards velocity to .37 iirc

[odd lodge]

so i could make it so i could do

/jump steve

and they would jump

?

[smoky oak]

yea

[odd lodge]

that is epic

ok

[distant wave]

can i use streams in 1.18.2 plugins

i mean java streams

[hybrid spoke]

yes

even in 1.8 plugins

[distant wave]

cool

[hybrid spoke]

as long as your java version is >=8

[distant wave]

you mean jdk

[eternal oxide]

both

[wispy monolith]

What is the event used for Chat message sent or smt

[tender shard]

AsyncPlayerChatEvent

[wispy monolith]

like if someone sent a message in chat

[wispy monolith]

what does Async mean?

[odd lodge]

why is it gray

[tender shard]

that it's not running on the main thread

[tender shard]

looks like it's outside of any class declaration

[lost matrix]

Please dont...

[tender shard]

pls don't whut

[eternal oxide]

Its complaining about no try/catch. Hover over to see the warning

[rare flicker]

oh... so that's why...

[golden turret]

you will never use my plugins

[lost matrix]

I constantly have to explain that async doesnt mean multithreaded. Dont lead him there.

[golden turret]

i log nothing

[lost matrix]

You can do stuff async on the main thread

[tender shard]

but the chat thing is running on its own thread

[odd lodge]

is the 'brandon' supposed to be gray

[lost matrix]

It may run on a different thread. But thats also not always the case.
I just wanted to clarify that async != different thread

[tender shard]

oh yeah I didn't want to say that

[hybrid spoke]

async means there is no thread

[tender shard]

async means "ultra fast"

lol

[hybrid spoke]

async = performance

[tender shard]

always use plugins with async in their name

they are always very guud

[eternal oxide]

While true, most will not understand this. Saying runs off the main thread is much simpler adn mor elikely they'll understand

[lost matrix]

yes. async + nms = super fast

[tender shard]

yep! Also consider upgrading to 1.8 for that sweet delicious extra performance

some people will claim 1.8 is outdated but they just don't know better

i'm running a 1.8 server on windows xp with 11 billion players on 2mb of ram. async, of course

[pearl glade]

No ?

[tender shard]

yes

[lost matrix]

There is actually a project that implemented the minecraft protocol which is multi threaded.

[eternal oxide]

Sometimes

[hybrid spoke]

dont talk to me if you have "dev" in your name

[pearl glade]

No ?

[tender shard]

yes

[pearl glade]

Lmao

[lost matrix]

If you do 1 + 1 async then its about 20% faster than 1 + 1 sync.

[tender shard]

for larger numbers it's even faster

[eternal oxide]

Lol, has this channel turned into the bullshit channel today? 😄

[rare flicker]

i have no idea if they're meming or not anymore im just confused

[pearl glade]

Good joke

[eternal oxide]

I really hope theres no one here listening

[hybrid spoke]

buy a movie ticket sync and async and see whats faster

[lost matrix]

I bet you even get a discount on async

[tender shard]

lufthansa is now doing their flights async too. berlin <> new york for example is 2 hours faster when the pilot goes async

[eternal oxide]

Someone is going to come back in 6 months and say "But 7smile7 said it was faster!".

[rare flicker]

jokes aside though, isnt there a mod that exists that makes worldgen run on a different thread or smth?

[hybrid spoke]

^when the main people in this channel are bullshitting all together

[lost matrix]

minecraft already supports async chunk generation. There are spigot forks that exposed this in their api.

[pearl glade]

Ok, Professor

[rare flicker]

yesssssssss, my physical server just died whenever i had updated to 1.19 and i wanted to try and salvage it however i could so that might be it

[lost matrix]

sry but this sentence makes no sense to me...

[rare flicker]

my bad for my english. let me try and reformulate

[tender shard]

get a defibrillator and revive it

[rare flicker]

1.17 runs fine on my server
but 1.18 and 1.19 are getting around 19TPS with everyone offline, no plugins and there isnt any crazy redstone machine hidden somewhere, its just a building world
the server has 4 cores and currently 1.19 makes it use one of them to 100% almost constantly, so i've been searching for a way to even out some load to the other cores

[hybrid spoke]

looks like a #help-server

[rare flicker]

ye it does

[lost matrix]

Are you running an i3 from 2004 or what?

[rare flicker]

nope

Amd FX idkthemodelanymore

so yeah its old

ddr3 even

i just cant bring myself to trash it

[lost matrix]

ddr3 isnt old. I had an i7 4770 on my root server and it was totally fine with 50 concurrent users on 1.16

[rare flicker]

yeah but did it have 7G of mismatched ram with all different frequencies?

[quaint mantle]

1.16 was built different ig

😂

[rare flicker]

and also this

[hybrid spoke]

1.16 is shit

[tender shard]

1.16 was nice when it came out

[rare flicker]

it runs on my crappy server though

[smoky oak]

was the seaweed fixed already then

[tender shard]

it was shit since 1.17 came out

[quaint mantle]

i do like to stay at 1.16 though, if anybody ask me to

[tender shard]

how can you live without goat horns?

[smoky oak]

note blocks

[rare flicker]

havent tried them yet so i'm not yet addicted

[rare flicker]

range sucks

[hybrid spoke]

custom ones

thats my new plugin idea

[quaint mantle]

there are villager's horns anyways

[smoky oak]

oh true

[hybrid spoke]

since i play sea of thieves

i need instruments

[tender shard]

https://static.wikia.nocookie.net/minecraft_gamepedia/images/d/d9/Goat_Horn_Call2.ogg/revision/latest?cb=20220428035605

[smoky oak]

oh right does anyone know if they mucked up note blocks ?

[odd lodge]

how do i add a potion effect to someone

[smoky oak]

theyre enums

[rare flicker]

new potionEffect(potionEffectType.glowing, 100)

[lost matrix]

PotionEffect needs to be instantiated.

new PotionEffect(...)

[rare flicker]

yeah

[lost matrix]

  public void slowHisAssDown(Player player) {
    int durationSeconds = 20000;
    int potionLevel = 1;
    player.addPotionEffect(new PotionEffect(PotionEffectType.SLOW, durationSeconds * 20, potionLevel));
  }

[rare flicker]

now add it

[rare flicker]

^^^^

[odd lodge]

?

[hybrid spoke]

?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.

[lost matrix]

PotionEffectType is an enum

[halcyon mica]

How can I get the burn time of a certain fuel item?

[odd lodge]

so its this wrong

[lost matrix]

Not through the api iirc.

[eternal oxide]

Hover over the red warning and see what it says. You are going to jump through a few stages before you figure it out

[halcyon mica]

So then how can I get the remaining time a fuel item has within a furnace?

Because the furnace only provides the current burn time

[lost matrix]

Have you tried those?

[halcyon mica]

^

Cook time is the progress of the "recipe"

[lost matrix]

Yeah i see

nms -> AbstractFurnaceBlockEntity.class

It also has some properties

[odd lodge]

does anybody here wanna help in dms for rly specific questions

[smoky oak]

just ?ask

[halcyon mica]

I really have to use NMS just to get how long something burns?

[wispy monolith]

https://dontasktoask.com/

[tender shard]

yes

[hybrid spoke]

?ask is the real one

[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. Make sure you use the right channel regarding the topic of your question. Create a thread in case the channel is already in use!

[tender shard]

no

[smoky oak]

u sure? Wasnt there a getFireTick or something?

[odd lodge]

am i doing something wrong here

[smoky oak]

CamelCase

PotionEffectType

[tender shard]

?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.

[hybrid spoke]

GLOWING

[rare flicker]

yup

[lost matrix]

Its honestly a bit weird. Someone should make a PR for this

[tender shard]

bukkit.getplayer(args[])

why no workz

[rare flicker]

nothing about material burn time

[tender shard]

i'd just include the burn times in a resource file and read that

[rare flicker]

looks like the "best" option

if you want one that will work past version update and that you really shouldn't do but that still doesnt use nms

• place a furnace in the world
• put in the item you want to burn and get the game time
• repeat every time you need it

[quaint mantle]

e

[rare flicker]

||Disclaimer : don't actually do this it's just bad||

[rare flicker]

e

[smoky oak]

iirc wiki has burn time in seconds

[halcyon mica]

Well, how do I get the minecraft type from a item stack

[halcyon mica]

Hardcoding shit is not a viable solution for this

[smoky oak]

stack.getItem().getType or smth

[halcyon mica]

Minecraft type

Not bukkit type

[tender shard]

CraftMagicValues iirc

CraftMagicNumbers#getItem(Material)

[lost matrix]

This is what i reverse engineered just now.

  public Item fromMaterial(Material material) {
    String mcKey = material.getKey().getKey();
    Registry<Item> itemRegistry = Registry.ITEM;
    return itemRegistry.get(new ResourceLocation(mcKey));
  }

[halcyon mica]

This just works, no need to overcomplicate it

[lost matrix]

Alright

[tender shard]

where is that from

[halcyon mica]

I'll probably PR a getTotalBurn time to furnaces

To be in line with cook time

[tender shard]

wait

getTotalBurn time to furnaces?

[lost matrix]

I just followed the path through the items class.

[halcyon mica]

Luckily I already have stash access from fixing the worldgen random issue

[tender shard]

I think Material should have a method getFurnaceBurnTime() that returns 0 or -1 for non burnable things

[lost matrix]

I didnt find that

[tender shard]

yeah with "should have" I mean someone should add it 😄

[halcyon mica]

Furnaces have a getCookTime#short to get the current cook time, and a getTotalCookTime#int for how long this item takes to cook in total

[lost matrix]

It would be quite easy to implement because the burn times are already exposed

[halcyon mica]

Though while it has a getBurnTime#short, it lacks a getTotalBurnTime

Might as well add both then

[harsh totem]

idk why the chest is always empty. the variable item is fine after i checked but the resulted loot in the chest is nothing. any ideas?

    public void loot(LootGenerateEvent event){
        List<ItemStack> collection = event.getLoot();
        for (int i = 0; i < collection.size(); i++){
            ItemStack item = getRandomItem();
            collection.set(i, item);
        }
        event.setLoot(collection);
    }```

[lost matrix]

Is this the only listener for your LootGenerateEvent?

[harsh totem]

yes

[lost matrix]

Any exceptions being thrown? Because i can imagine that event.getLoot() returns an immutable list.

[hybrid spoke]

Get a mutable list of all loot to be generated.

what does getRandomItem do

[harsh totem]

I was debugging and i saw the event.getLoot() is the actual vanila generated loot and that getRandomItem() is actually a random item.

[harsh totem]

gives a random item

[hybrid spoke]

yeah, code?

[harsh totem]

here is an example of debugging. the first in each box is the vanila loot and the second is getRandomItem()

[lost matrix]

If getRandomItem works then this looks fine. Make sure you actually compile -> stop server -> upload -> start server

[harsh totem]

i made sure

[hybrid spoke]

build to project once with the hammer

so that really everything is up to date

[harsh totem]

what?

[hybrid spoke]

not sure when you are using eclipse

but if you are using intellij press the hammer

[harsh totem]

i just checked and the collection.set does set the item in the slot to the random item

[harsh totem]

idk what could be the problem

[lost matrix]

Interesting. I have the same problem...

[harsh totem]

    public void loot(LootGenerateEvent event){
        List<ItemStack> collection = event.getLoot();
        for (int i = 0; i < collection.size(); i++){
            ItemStack item = main.getRandomItem();
            System.out.println(collection.get(i));
            System.out.println(item);
            collection.set(i, item);
            System.out.println(collection.get(i));
            System.out.println("--------------");
        }
        event.setLoot(collection);
    }```

it does actually set it

but the chests are empty

[golden turret]

then event.getLoot returns the actual list of loot and not a copy, like some events do

[lost matrix]

I fixed it by creating a new collection

  @EventHandler
  public void loot(LootGenerateEvent event){
    List<ItemStack> collection = new ArrayList<>(event.getLoot());
    collection.replaceAll(current -> new ItemStack(Material.STONE));
    event.setLoot(collection);
  }

[harsh totem]

ok but how did this fix it? i wanna know

and thx

[lost matrix]

So for you it is:

  @EventHandler
  public void loot(LootGenerateEvent event){
    List<ItemStack> collection = new ArrayList<>(event.getLoot());
    collection.replaceAll(current -> main.getRandomItem());
    event.setLoot(collection);
  }

Or

  @EventHandler
  public void loot(LootGenerateEvent event){
    event.setLoot(event.getLoot().stream().map(i -> main.getRandomItem()).toList());
  }

Because less lines = faster code

[hybrid spoke]

#961533327435788348

[twilit roost]

https://youtu.be/lvuUquvkZFA

I need new code for getting new location when moving x blocks forward
Works fine when its straight, but when its rotated somehow, it doesn't work anymore

    public static Location getMoveToLocation(Ship ship){
        Location current = ship.getCurrentLocation();
        Location newLoc = new Location(current.getWorld(),current.getX(),current.getY(),current.getZ());
        Vector dir = new Vector(ship.getCurrentLocation().getDirection().getX(), 0, ship.getCurrentLocation().getDirection().getZ());
        int speed = (int) (ship.getSails().getOpenStatus().getValue()/10*ship.getCurrentSpeed()*ship.getSails().getStrength());
        int bpt = (int) 0.1; //Blocks Per Tick
        int blocksMoved = speed;
        if(dir==null){
            return null;
        }
        newLoc.add(dir.multiply(-1*blocksMoved));
        return newLoc;
    }

[lost matrix]

You need to change the direction of the ships location when you rotate the ship

[twilit roost]

ye but how do I get direction from one location?

[lost matrix]

What do you mean? You already get the direction from one location.

ship.getCurrentLocation().getDirection()

[eternal oxide]

the pitch and yaw gives the direction ^

[twilit roost]

ye but I need to calculate the direction so I can set it to the location when rotating

[lost matrix]

Then do that

[agile anvil]

Hello guys,
I just watched the new 1.19 version, and I can't find the "setCustomName" method on EntityLiving. I know that last time it was a(IchatBaseComponent ..).

Anyone knows new name of the method pls ?

[twilit roost]

https://nms.screamingsandals.org/

[eternal oxide]

IchatBaseComponent are you talking about NMS?

[agile anvil]

Yep

[agile anvil]

Thanks this website is sick!

[lost matrix]

EntityLiving is not an actual class (if you use the mojang mappings (which you should))

[agile anvil]

Yep I know, it extends Entity

Looks like it's now the b method

[eternal oxide]

isn;t it setCustomName Component.fromText(...) or something?

[lost matrix]

In nms entity there is this method

[twilit roost]

Is there a way to convert a float into a Vector?

[hybrid spoke]

context

[eternal oxide]

A single Float no, not unless it has an axis

[agile anvil]

In bukkit yep, but not in the net.minecraft.server.world.entity.Entity nor EntityLiving. It seams it's now called b(rn

[lost matrix]

Sure. There are tons of ways:

float f = 0.1F;
Vector v = new Vector(10 * f, (float) Math.PI * f, f * f * 0.01F);

[twilit roost]

I have yRotation ( float )
And I need to calculate based of that Vector of whole 'Ship'

[lost matrix]

With yRotation you mean yaw i suppose? Or a rotation around the y axis

[agile anvil]

How do you represent your ship ?

[twilit roost]

like this

[twilit roost]

around y axis

[lost matrix]

Pretty sure you mean the yaw...

[twilit roost]

oh yeah
im not comfortable with yaw/pitch namings

[lost matrix]

Ok so you want yaw -> projected vector

[twilit roost]

yep

[agile anvil]

I meant do you have any axis, etc... ? x)

[twilit roost]

I have current rotation in which the ship is steering aka yaw

[agile anvil]

If you want to rotate some vectors, you should multiply your vectors with the rotation Matrix

[glossy venture]

you do some sin cos shit

Vector vec = new Vector(Math.sin(yaw), 0, Math.cos(yaw));
``` i think

[eternal oxide]

He's in Spigot so I'm not sure what he's trying to do. Vector has all the math you need

[glossy venture]

convert yaw to look vector

i think

but thats how you do it right

[lost matrix]

  public Vector fromRot(float yaw) {
    return new Vector(Math.sin(yaw), 0, Math.cos(yaw));
  }

damn i got sniped

[eternal oxide]

if you want to adjust a heading and get a vector just Location.setYaw(float) then getDirection()

[agile anvil]

@twilit roost We need to know what you have in input and what you're looking for in output

For those wondering, yep the setCustomName nms method is now b(IChatBaseComponent)

[eternal oxide]

Most here who use nms use MojangMappings, so still use setCustomName

[agile anvil]

Okay

[glossy venture]

this should do it
like x = sin(yaw), z = cos(yaw), will give x = 0, z = 1 for yaw = 0, which is forward so that checks out

[hushed spindle]

I think I may have found a spigot bug, could anyone confirm?
When you attempt to damage a mob outside of attack range, specifically if there is a block behind that mob, no interact events of any type are fired.
So in the range far enough to not attack an entity but close enough to be able to to target a block, no interactevents trigger. Does anyone know of a workaround or know of any events that do trigger in this case?

this issue was found while testing an attack range custom attribute

[lost matrix]

What version are you on?

[hushed spindle]

1.19

the weird thing is that absolutely no interact events trigger, despite me definitely left clicking with an item in my hand

if i go outside this range interact events start triggering again, if i get too close i just attack the entity

[lost matrix]

This might be client side. Check the packets sent by the player.

[lost matrix]

But if you leftclick with an item in hand then the interact event will be fired regardless of any blocks or entities in your way.

[hushed spindle]

it doesnt here

i might be able to make a video on it later

[odd lodge]

would this work

[lost matrix]

in order to achieve what exactly?

[odd lodge]

if the coordinates are like

44.834093840398

it would just do

45

[hushed spindle]

yeah, it would round it to the closest whole coordinate

[odd lodge]

so what i put

would work

[lost matrix]

If you dont care about exact precision then just cast it to an int

[hushed spindle]

that would result 45, 44.4999999 would output 44

casting to int i believe would round it to the first number down right? so 44.9 would become 44 i thought

havent played around with it a lot tho

because any decimal places are just chucked out

[lost matrix]

public int fastRound(double num) {
  return (int) (num + 0.5);
}

[hushed spindle]

Yup that works

[eternal oxide]

or (int) Math.floor(double)

[lost matrix]

"slow" round

[eternal oxide]

its all one line so it must be faster than your 3 line method 🙂

[lost matrix]

true

[eternal oxide]

actually, yours should add 0.4 not 0.5

as a value of 2.5 should round down

[lost matrix]

Im posting this just in case you realise and delete it later 😄

[eternal oxide]

or 0.499