help-development

[pastel juniper]

In hypixel skyblock if you click on a player a player profile opens. There you can see his armor and main hand and whenever he changes on of them the inventory updates

[humble tulip]

Also 50 items, that's allot to do with out a loop

[crisp steeple]

so just change the slots depending on what armor they wear

[slate mortar]

it will most likely just update every second or smt. that'd explain why tf their server performance is so trash

[humble tulip]

Lol

It'll update when they player equips and unequips armor

U can create an armorequipevent

[slate mortar]

yea i never messed with custom events, at least not in spigot

[pastel juniper]

and how can I update a specific item slot

???

[slate mortar]

for custom events i always use my shitty horrible optimized own api lol

[humble tulip]

Inventory.setItem(int slot, ItemStack)

[slate mortar]

just re-add the item ig

[iron glade]

set its contents to (get its contents)

I guess

does this make sense

[slate mortar]

with get its contents you hopefully mean the player's contents, and not the gui's contents

in that case, it does indeed make sense

i mean, when you jut set the contents to what is already set, it'd change nothing lol

[humble tulip]

This is the way btw

[daring lark]

did Class InventoryOpenEvent cares about chestd etc. or only player inv?

[stuck flax]

how would i kill all dropped items without using /kill @e

[quaint mantle]

Please help
I have a list of Protection, but I cant get the list from config

c3c73faa-eeef-2f10-9bae-67abcdd00f5f:
- ==: me.armando_sales.primeiro_plugin.eventos.Protection
  owner: &id001
    ==: Player
    name: Armando_Sales
  location:
    ==: org.bukkit.Location
    world: world
    x: 13.0
    y: -60.0
    z: -4.0
    pitch: 0.0
    yaw: 0.0
- ==: me.armando_sales.primeiro_plugin.eventos.Protection
  owner: *id001
  location:
    ==: org.bukkit.Location
    world: world
    x: 18.0
    y: -60.0
    z: -5.0
    pitch: 0.0
    yaw: 0.0

CustomConfig.getContainersConfig().getList(onlinePlayer.getUniqueId().toString()); //is null

[slate mortar]

afaik Inventories are all GUI's with slots

[humble tulip]

Actually inventoryopenevent isn't called when player opens their own inventory

Player inventory is always marked as open

[slate mortar]

lol

[humble tulip]

InventoryCloseEvent is claled when it's closed though which is dumb and inconsistent

But it's mojangs fault

[daring lark]

i mean can i check with that event if player opnes a chest?

[humble tulip]

Yes u can

[daring lark]

cool

[slate mortar]

i mean, try it out and print out a message

if it prints that message, you can

[humble tulip]

It worksfor chests

[slate mortar]

if not, you can't

i may actually create a clientmod someday which extends the amount of things that send packets

it's so dumb to see how many things don't inform the server about what happened

[stuck flax]

any1?

[iron glade]

Levitation effect is not triggered under water

[slate mortar]

yes that's a thing

[iron glade]

Now I have to check if the player is in the water and teleport him to the first block that is not water

so annoying

[slate mortar]

i love that it is like this

imagine looting endcities without that

water is the best thing against that stupid effect

[iron glade]

:(

in my case it's just annoying

that it's like that

[midnight shore]

does anyone know why when i have a prepareitemcraftevent and i get the crafting inventory, i set the result item and it only shows when i remove the current result in the crafting grid?

[lethal python]

guys i know this isn't a development question but i have a really large build that i want to move (including mobs, inventories, biomes, etc) to another world, the place would be too large to do with litematica, is there anything like the old mcedit which can do that these days?

[eternal oxide]

best to ask in #help-server

[lethal python]

okey

[iron glade]

Simple way to check if player is in water is to check if the block at his eye position is type = water?

[tall dragon]

That would not detect if only his feet are in the water

[iron glade]

I don't care about his feet as the Levitation effect triggers as soon as your head is outside of the water

okay nevermind

[crimson scarab]

what is the event for a player setting on fire

find the answer

it was entitycombustevent

[iron glade]

.playEffect() is deprecated, what should be used instead?

[ivory sleet]

yeah

[quiet ice]

are you sure that you cannot write to it?

The different icon can be explained by it being empty

[thorny dawn]

pls tell me u arent creating a datastore system with yml files

it can get quite messy and bad if the server grows

id say its good for storing temp data

[quiet ice]

Temp data?

[thorny dawn]

if you want a stable database consider SQL or Mongo

[thorny dawn]

i use it to store game rounds and other temp shit that i delete later

[quiet ice]

I prefer my DataInputstream & DataOutputStream

[quiet ice]

I'd store that in volatile memory

[thorny dawn]

oh alright

[quiet ice]

Proper databases are overrated

[thorny dawn]

no they arent

sql is overrated because its dogshit

[ivory sleet]

wut

[thorny dawn]

there are way better databases to use

[ivory sleet]

such as?

[thorny dawn]

mongo is way better

[quaint mantle]

Please can anyone help me with this thing

c4c5af3a-ee3f-3f90-91ae-67a5cfd00f6c:
- ==: me.armando_sales.primeiro_plugin.eventos.Protection
  owner: &id001
    ==: Player
    name: Armando_Sales
  location:
    ==: org.bukkit.Location
    world: world
    x: 2.0
    y: -60.0
    z: 21.0
    pitch: 0.0
    yaw: 0.0
- ==: me.armando_sales.primeiro_plugin.eventos.Protection
  owner: *id001
  location:
    ==: org.bukkit.Location
    world: world
    x: 1.0
    y: -60.0
    z: 19.0
    pitch: 0.0
    yaw: 0.0
- ==: me.armando_sales.primeiro_plugin.eventos.Protection
  owner: *id001
  location:
    ==: org.bukkit.Location
    world: world
    x: 0.0
    y: -60.0
    z: 18.0
    pitch: 0.0
    yaw: 0.0

I'm trying to deserialize a list of Protections but the objects are all null

      for (Player onlinePlayer : Bukkit.getOnlinePlayers()) {
            if (CustomConfig.getContainersConfig().getList(onlinePlayer.getUniqueId().toString()) != null) {
                List<?> list = CustomConfig.getContainersConfig().getList(onlinePlayer.getUniqueId().toString());
                for (Object object : list) {
                    EventoBlockPlace.getProtections().add(((Protection) object));
                }
            }
        }

[null, null, null]

[ivory sleet]

mongo isnt relational though

they serve different purposes

(ideally)

then if you use it for something else thats on you

[quiet ice]

See, DataInputStream & DataObjectStream is much better if done properly

[thorny dawn]

being a javascript main, id rather not have to learn how to write sql

its easier to use mongos driver for maven

[quiet ice]

The only issues are spontaneous crashes or power losses - but most DBs have similar issues.
And you don't want to have this anyways

[ivory sleet]

yes but for scalability you dont always want to run a mongodb

[thorny dawn]

why not

[ivory sleet]

because complex queries can be much more scalable w/ sth like postgre for instance

postgre is enterprise gold

[quiet ice]

Could you add a bit more info there?

What does it say?

Then you are not writing to it

[thorny dawn]

well i dont wanna go through the process of learning how to use another database since mongo provides me with more than enough to do what i want

[quiet ice]

How do you write to it?

that alone does not write anything

[ivory sleet]

ok but that doesnt make sql and its implementations dogshit lol

[thorny dawn]

lack of proper orthogonality — SQL is hard to compose;

lack of compactness — SQL is a large language;

lack of consistency — SQL is inconsistent in syntax and semantics;

poor system cohesion — SQL does not integrate well enough with application languages and protocols.

[ivory sleet]

dont spread fud about technologies that are actually really useful and meaningful

lack of compactness?

mind elaborating on these points you're making

[thorny dawn]

there are 469 keywords in sql

[ivory sleet]

and, you dont need to know them all to be able to use sql?

[vocal cloud]

Man hate SQL all you want but it's lighter than a lot of others (looking at you mongo)

[ivory sleet]

if you know the 36 most used ones then you're already quite knowledgeable in sql

[vocal cloud]

SQLite is also really nice

[ivory sleet]

for instance mongo is unstructured, and internally it saves everything to json documents, so it is efficient if you are gonna store key-value blobs, but for structured data sql is almost always the way to go whenever you actually want to seriously scale something (horizontally ofc)

[thorny dawn]

mongodb vs sql ill let u pick

look at the huge mess of shit sql creates

[vocal cloud]

Lmfao I love the argument that less is always better.

[ivory sleet]

I mean you usually put your statements in constants and format them in a more readable way, anyway this is entirely besides the point

[thorny dawn]

it is more efficient to write

u can shoot yourself in the foot so easily with sql

[ivory sleet]

its not like you're writing a million lines of sql queries tho lol

I mean then you get a syntax error which takes a minute at most to fix (presupposing you wrote it syntactically wrong)

[quaint mantle]

sure

[vocal cloud]

Plus you can always use intellij to prep your queries in advance.

[quiet ice]

Welp, this reinforces my assumption that all DBs are shit

[ivory sleet]

And like sure, thats a nice java wrapper for mongo ceryth

but those exist for sql impls as well

[thorny dawn]

i can still use mongo more easily with my other applications if i want to access that data

[ivory sleet]

elaborate?

[vocal cloud]

Also if you've used Linq SQL can look way better than anything mongo has.

[thorny dawn]

say you would like to make a discord bot for your discord server that verifies the player based on ingame data, or get their stats by running /stars <player> on discord

[ivory sleet]

and its not like one is harder to setup or anything fyi

both have docker containers on docker hub etc

[iron glade]

final int points = 18;
        final double size = 8;
        int upper = 256;
        int lower = p.getLocation().getBlockY();

        Bukkit.getOnlinePlayers().forEach(all -> {

            for (int k = lower; k < upper; k+=4) {

                for (int i = 0; i < 360; i += 360 / points) {
                    final double angle = (i * Math.PI / 180);
                    final double x = size * Math.cos(angle);
                    final double z = size * Math.sin(angle);

                    final Location locnew = p.getLocation().add(x, lower, z);

                    all.playEffect(locnew, Effect.MOBSPAWNER_FLAMES, 1);
                    all.playSound(locnew, Sound.ENTITY_ENDERMAN_AMBIENT, 5L, 5L);
                }

            }
        });```


Are those too many particles or why is it not showing any??

[ivory sleet]

how is that easier with mongo?

[vocal cloud]

Imo people who hate SQL are just mad cause bad.

[ivory sleet]

well mongo isnt bad

[vocal cloud]

Now OracleSQL that's something to hate

[ivory sleet]

they just have different core purposes

lol

[vocal cloud]

I use both

[ivory sleet]

same

[quaint mantle]

#help-development message

    public PrimeiroPlugin() {
        ConfigurationSerialization.registerClass(Protection.class);
    }

public class Protection implements ConfigurationSerializable {

    @Override
    @Nonnull
    public Map<String, Object> serialize() {
        Map<String, Object> stringObjectMap = new HashMap<>();
        stringObjectMap.put("location", location);
        stringObjectMap.put("owner", owner);
        return stringObjectMap;
    }

    private final Location location;
    private final Player owner;


    public Protection(Location location, Player owner) {
        this.location = location;
        this.owner = owner;
    }

    public Location getLocation() {
        return location;
    }

    public Player getOwner() {
        return owner;
    }

    @Override
    public String toString() {
        return "Protection{" +
                "blockLocation=" + location +
                ", owner=" + owner.getName() +
                '}';
    }
}

@quiet ice

[vocal cloud]

SQL is for lighter applications

Mongo is for heavier

[ivory sleet]

yeah or well if you wanna take advantage of its structuring implementation

[limber owl]

why did this function returned null
public void removeLevel()

it's my custom function

and there's normal code

and like

what

[quiet ice]

...

Are we supposed to be witches?

[thorny dawn]

fyi, im talking mongo for my whole custom coded network not a single plugin

[quiet ice]

Knowing everything in the universe?

[thorny dawn]

even if i created a single plugin, i doubt i would get myself through the process of writing sql

[ivory sleet]

anyway for instance Netflix, Twitch and Instagram are some services that use postgresql due to the fact that its a good sql impl

[vocal cloud]

I love mongo but it's slower compared to SQL.

Plus you can write the constraints and what not in your create query and that makes me happy cause then it's just simple inserts from there.

[limber owl]

public void removeLevel() {
        if (world == null || startLocation == null || name == null) return;

        try {
            LevelsConfig.set("levels." + name, null);
            LevelsConfig.save();
        } catch (Exception e) {
            Bukkit.getLogger().log(java.util.logging.Level.SEVERE, e.getMessage());
            if (WaterRun.get().getConfig().getBoolean("debug"))
                e.printStackTrace();
        }

        if (WaterRun.getDatabase() != null && WaterRun.getDatabase().isConnected()) {
            try {
                if (WaterRun.getDataHandler().isInLevels(this)) {
                    WaterRun.getDataHandler().removeLevels(this);
                } else {
                    Bukkit.getLogger().log(java.util.logging.Level.WARNING, "Level "+name+" isn't in database");
                }
            } catch (Exception e) {
                Bukkit.getLogger().log(java.util.logging.Level.SEVERE, e.getMessage());
                if (WaterRun.get().getConfig().getBoolean("debug"))
                    e.printStackTrace();
            }
        }
    }
``` can someone help why did this return null exception

[vocal cloud]

Have you ever configured a cisco router?

[ivory sleet]

lets say you have a table of users that have some columns such as name, number and geolocation, with sql you'd be able to efficiently only get a number, or a geolocation for all or one user in a horizontally scalable manner

[topaz moon]

sql > nosql

[ivory sleet]

in mongo, internally even though you might only want the number of all users it'd have to query entire blobs still

this becomes especially powerful with relational tables (sql)

[limber owl]

[22:23:20] [Server thread/ERROR]: null

[vocal cloud]

Ah beautiful

[thorny dawn]

idk man sql sounds a bit edgy for me

u need to take care of so many exceptions and errors

[ivory sleet]

wat

[limber owl]

Caused by: java.lang.NullPointerException: Cannot invoke "com.martinecko30.waterrun.level.Level.removeLevel()" because the return value of "com.martinecko30.waterrun.level.Level.removeLevel()" is null

[vocal cloud]

Well yeah but mongo just throws them secretly and if you get hit with one good luck. SQL has the balls to warn you in advance

[thorny dawn]

mate have u seen mongo logs

[vocal cloud]

Yes

[ivory sleet]

its not like thats impossible to do with sql since thats a mere wrapper (logging)

[vocal cloud]

Throw secretly as in you don't know something can throw an exception (like a query) until it does

[topaz moon]

https://www.reddit.com/r/ProgrammerHumor/comments/v2abmt/is_this_actually_true/

[thorny dawn]

its actually the opposite

[limber owl]

there's nothing else, I know ho to go through the statrace and it's just pointing from where in code it moved there, and for real, I have no idea why did this happend, i think something corrupted interrupted it and broke it

[ivory sleet]

how lol

[vocal cloud]

Man doesn't know what his db do

[thorny dawn]

i just found it trash that i have to learn an entire new language for such simple shit

[ivory sleet]

it takes like 20 mins to learn

[vocal cloud]

Yes but it's worth it

[ivory sleet]

and its not dogshit because you avoid learning it

thats a you problem only

[topaz moon]

^this

[limber owl]

    public void createLevels(Level level) {
        db.update("INSERT INTO Levels (Name, World, LocationX, LocationY, LocationZ, DoorX, DoorY, DoorZ\n)" +
                "VALUES ('" + level.getName() + "', '" + level.getWorld().getName() + "', '"
                + level.getStartLocation().getX() + "', '" + level.getStartLocation().getY()
                + "', '" + level.getStartLocation().getZ() + level.getDoorLocation().getX()
                + "', '" + level.getDoorLocation().getY() + "', '" + level.getDoorLocation().getZ()
                + "')");
    }

mysql, the update method is just querry

[thorny dawn]

mongo takes like 5

[ivory sleet]

ok?

[limber owl]

but it would throw this:

    public int update(String query) {
        try {
            return conn.createStatement().executeUpdate(query);
        } catch (Exception e) {
            plugin.getLogger().info(" ");
            Bukkit.getConsoleSender().sendMessage("§c - Query failed! §4" + query);
            Bukkit.getConsoleSender().sendMessage("§c - Error: " + e.getMessage());
            return -1;
        }

//        System.out.println("UPDATE - "+ query);
    }

[ivory sleet]

I advice using prepared statements btw

[thorny dawn]

sql moment

[vocal cloud]

mongo takes longer to learn the little things. Plus you need a tonne of libraries to make it functional

[thorny dawn]

no?

[vocal cloud]

Yes?

[quaint mantle]

can any one tell me how should I use the static deserialize method? Please

[thorny dawn]

lol

[vocal cloud]

Bson?

[ivory sleet]

yes but prepared statements make it safer to use, why wouldnt you want to exercise best practices?

[topaz moon]

forgot to mention: no

[thorny dawn]

querrying for me is easier in mongo

[ivory sleet]

that still has to correlation to why sql would be dogshit

[crude cobalt]

Hello everyone, anyone fumbling for MySQL? I hope so. In general - what kind of error:

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'enduranceY (NAME, UUID) VALUES ('MrLadad13','bdc1f5f7-413b-3775-96a7-eed8857f...' at line 1

Code:

PreparedStatement ps2 = pl.SQL.getConnection().prepareStatement("INSERT IGNORE INFO enduranceY"
                        + " (NAME, UUID) VALUES (?,?)");

[upper vale]

INFO?

Should be INTO no

[thorny dawn]

db.Collection_Name.findOne(query:<document>,projection:<document>)

to the untrained, sql developer eye it might come to a surprise when u can query with just one line of code

[vocal cloud]

As if with just a few seconds of boilerplate you can produce a faster, more effective method of doing things

[ivory sleet]

still dont see your point here

[upper vale]

why is a mysql vs mongo debate turning into personal attacks 💀

[thorny dawn]

its not lol

[topaz moon]

where

[vocal cloud]

to the untrained, sql developer eye

[topaz moon]

oh

[thorny dawn]

it makes the code more compact than writing a billion lines of sql boilerplate

[ivory sleet]

billion lines?

[quaint mantle]

@vocal cloud Do you know ho can I use this method?

public static Protection deserialize(Map<String, Object> args)

[ivory sleet]

its not like the sql query is gonna be harder, more verbose or more complicated if you wanted to write something sql equivalent

[vocal cloud]

Compact? Sure. Compared to the amount of memory mongo uses? I'll take it

[topaz moon]

everything has its use-case

[vocal cloud]

Never seen it before so no

[upper vale]

General rule of thumb for me when choosing between SQL or Mongo is just if the data is relational or not

[ivory sleet]

^

[topaz moon]

thanks, this^

[ivory sleet]

structured vs unstructered

none of those are dogshit

[crude cobalt]

Help plz

[ivory sleet]

none are inherently worse than the other unless you define a particular use case

[topaz moon]

to quote a reddit comment

SQL is like a shop, everything is laid out on the shelf. It's easy to pick what you need, but to do the job you have to walk up and down the isles to get each bit.

NoSQL is great of you're always making the same thing. SQL is great if you make a variety of things. Use the right tool for the job.```

[upper vale]

INFO?
Should be INTO no

[vocal cloud]

Also if it's multithreaded or not. If it's never multithreaded then I just use SQLite

[crude cobalt]

Info?

[topaz moon]

your code

says INFO

instead of INTO

you got a typo there

[thorny dawn]

as i said, coming from creating web apps i dont wanna learn sql when i can already adapt easier with mongo

[ivory sleet]

sure if thats your opinion

but dont go around spreading shit about sql when you havent even taken the time to learn it

[thorny dawn]

i didnt say that objectively its my opinion

[crude cobalt]

You are the best

[humble tulip]

SQLite is thread safe

[ivory sleet]

bit unorthodox to form an opinion about something you scarcely know about, then going on to make points that aren't even correct, anyway guess we're done debating now

[topaz moon]

thanks to @upper vale

[humble tulip]

I had a thread spamming my sqlite database and my plugin still functioned

It was to stress test it

[vocal cloud]

Mmmm I think you have to enable it

[humble tulip]

Nope

You can disable it

It's on by defualt

[vocal cloud]

I guess I'm just old

[ivory sleet]

I mean most of them have to be thread safe

else the world would have met its demise long time ago

[vocal cloud]

SQLite is really nice

[humble tulip]

It's basically sql but faster

Great if you don't need the data anywhere else

[ivory sleet]

yeah as a mock implementation its rather nice

[topaz moon]

it has less syntax tho

wrong quote

[topaz moon]

i meant this

[vocal cloud]

Yeah but for my application (lightweight program meant to run on a low-spec server) it's a lot better and you don't need the bloat of a db running alongside it. If I needed more complex types I'd be toast

[topaz moon]

perfect for a lightweight use-case

[humble tulip]

Yep

I made a pos system for fun and used sqlite

just create a file

Lol

[tender shard]

new File("asd.yml").create();

[vocal cloud]

^

[tender shard]

or new YamlConfiguration().save(new File("asd.yml"));

[vocal cloud]

[tender shard]

or you rename an existing file and make it empty

wdym you cant write to it? whats the error message?

and how exactly can you "not" write to it?

[humble tulip]

What are you usingnto write to the file?

[tender shard]

set a value in the file?

whut?

[humble tulip]

When u set, yu need to save

[little trail]

Does using set() on the FileConfiguration actually save automatically to config.yml

[humble tulip]

Not save every time

Save every x mins and on disable

Or if it's a one time set

You can save right after

[tender shard]

no of course not

[little trail]

How would I do that then

[tender shard]

FileConfiguration.save(File)

[humble tulip]

^^

😐

[little trail]

What, you were the one that put two carets

i completely forgor what java/kotlin does with pass-by-reference and value if any, would this actually edit and save the config

[ivory sleet]

iirc yes

[next zinc]

Does #damage() ignore armor?

[tender shard]

IIRC it deals exactly the amount of damage you specify

so it basically "ignores" armor

[ivory sleet]

^

[next zinc]

Is there a way to not ignore the armor?

[tender shard]

none that I know of

[topaz moon]

is armor a value you can substract from damage?

[eternal oxide]

you can throw an event and see what the resulting damage is

[ivory flume]

wait question

[next zinc]

Ill try that

[ivory flume]

how are you supposed to even update your plugins when rhey have the version of the api u use in the package name of bukkit stuff?

manually change all of them?

[tender shard]

you shouldn't use those classes in the first place

just do search & replace

[crude cobalt]

@upper vale Thanks for the help with SQL, bro

[next zinc]

I think I found a better way to tackle the problem tysm for the help

[ivory flume]

ahh i thought that was all classes okay

sorry then

[tender shard]

only CraftBukkit and NMS classes (prior to 1.17) had the version in the package name

if you stick to the Bukkit API, then plugins will basically run in every version

[quaint mantle]

can anyone help me learn databases? i've been trying to make a system where you can set a default kit then the player can re arrange the kit to how they like and save it

[topaz moon]

you mean like SQL?

[tardy delta]

https://www.spigotmc.org/wiki/connecting-to-databases-mysql/

[sacred mountain]

is there any api for damage calculations using the player's current armor and effects?

or a way to do it that i can write myself

[maiden vapor]

Are you trying to predict what the damage will be, or modify the damage?

[sacred mountain]

modify

well acute at ye the fbe a tan fb se terry aei o the p i ato bc t sang at of

wtf

[maiden vapor]

Damage events have something like getDamage(DamageModifier.Armor) that gives you the reduction the armor does. If you did setDamage(DamageModifier.Armor,0), armor would be completely ignored

[sacred mountain]

its a co syykk@

whay is wtrong with mykeyyyaird

[tender shard]

it's drunk

[patent horizon]

is there no easy way to make a dictionary/map in java?

[eager knoll]

I'm getting ClassNotFoundException and I tried multiple things including checking the directory that plugin.yml leads to, I can't seem to find the issue, any help?

[ivory sleet]

there is

Map.of()

[tender shard]

lmao

[patent horizon]

wowza

[sacred mountain]

ok so what i was trying to say, is that im dealing with particles and i need to deal damage and not modify its

[patent horizon]

so u can only have up to 10 values?

[sacred mountain]

since particles dont damage players

[tender shard]

whut

just create a new Map yourself

[patent horizon]

k10, v10

[tender shard]

Map<String,String> map = new HashMap<>();

then add as many stuff as you want

[sacred mountain]

can you put values here?
HashMap<>(....);

[tender shard]

only existing collections

[sacred mountain]

oh right

[tender shard]

also the "here" part is called the constructor 😄

[ivory sleet]

well

there's Map.ofEntries() also :333

[sacred mountain]

oh okay, i just get a lil confused with the <>() stuff

is <> just accepting a type and () the consturcutr

HashMap<T>

something with generics idk

[tender shard]

a HashMap has two generic types

one for the key, one for the value

[sacred mountain]

ah right so

T, T?

[tender shard]

nope

[sacred mountain]

pr is it K, V

[tender shard]

two different names

it doeesnt matter

it could also be called HashMap<Peter,Alex>

[sacred mountain]

so you could name it anything?

[tender shard]

sure

T is short for "Type"

[sacred mountain]

but dont types have to be existing classes or sum

[tender shard]

"K,V" is short for "Key" and"Value"

[sacred mountain]

to use them

[compact haven]

Generics aren’t classes

[sacred mountain]

or is that only in the constructor

[tender shard]

no, they are "placeholders" for a class not known yet

[sacred mountain]

i though that was <?>

oh thats for

[compact haven]

That’s another type of generic

That’s a wildcard

[sacred mountain]

unknown soemthing but known type?

nvm

[compact haven]

It’s when you don’t know the type of the generic

[sacred mountain]

ohk

[tender shard]

if you find generics interesting: this is the best tutorial https://docs.oracle.com/javase/tutorial/java/generics/index.html

[compact haven]

When you define a class using a generic, you use a letter or word like T or Type

[sacred mountain]

thanks i'll have a look in the morning 👍

[compact haven]

When you use a class using a generic, you use the class or ? if you don’t know the class yet

Optional<?> for example is an Optional of an unknown type

[native nexus]

You don’t specifically have to use the keyword T

[sacred mountain]

so if i wanted to create a method that only works with my Effects abstract class i could use

public void blah(? extends Effect)

[ivory sleet]

I mean you also use wildcards with super/extends for generic sub-/supertyping

[tender shard]

no

you just use Effect

[compact haven]

no you can’t do that

[tender shard]

why would you need generics if you know what parameter you expect

[sacred mountain]

true

i see

[tender shard]

just take a list for example

[native nexus]

Use interfaces

[tender shard]

you can have lists of ANYTHING

so list is generic

your method takes an effect and not a string or an integer or a player

so yours isnt generic 😄

[sacred mountain]

never really touched them

[compact haven]

You can do something like that with

public <T extends Effect> blah(T effect){}

[sacred mountain]

mkay so it's only used if the value being passed is unknown?

[compact haven]

That does, properly, what you sent above

[sacred mountain]

or like anything

[tender shard]

an interface is like a radial piston pump

[sacred mountain]

should i know what that is

[tender shard]

this is a radial piston pump

[compact haven]

It’s an abstraction for simplicity. Imagine if list.get(5) returned an Object, then you needed to cast that to a Player when you know every element in that list is a Player

[limber mica]

Exception in thread "Thread 1" com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 19 path $
    at com.google.gson.JsonParser.parseReader(JsonParser.java:66)
    at com.google.gson.JsonParser.parseString(JsonParser.java:47)
    at com.google.gson.JsonParser.parse(JsonParser.java:98)
    at com.yk.handlers.JsonHandler.getKnowledge(JsonHandler.java:40)
    at com.yk.handlers.JsonHandler.clearCache(JsonHandler.java:74)
``` ```java
            JsonArray array = parser.parse(content).getAsJsonArray();

[ivory sleet]

show your json

[subtle folio]

hello friends what does this error mean? ```[22:04:32 ERROR]: Error occurred while enabling TazpvpCore v1 (Is it up to date?)

java.lang.NoClassDefFoundError: net/tazpvp/tazpvpcore/Commands/admin/GmcCMD

at net.tazpvp.tazpvpcore.TazpvpCore.registerCommands(TazpvpCore.java:37) ~[tazpvpCore-1.jar:?]

at net.tazpvp.tazpvpcore.TazpvpCore.onEnable(TazpvpCore.java:25) ~[tazpvpCore-1.jar:?]

at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]

at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:370) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]

at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:541) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]

at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugin(CraftServer.java:560) ~[paper-1.18.2.jar:git-Paper-341]

at org.bukkit.craftbukkit.v1_18_R2.CraftServer.enablePlugins(CraftServer.java:474) ~[paper-1.18.2.jar:git-Paper-341]

at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:664) ~[paper-1.18.2.jar:git-Paper-341]

at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:431) ~[paper-1.18.2.jar:git-Paper-341]

at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:316) ~[paper-1.18.2.jar:git-Paper-341]

at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1163) ~[paper-1.18.2.jar:git-Paper-341]

at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) ~[paper-1.18.2.jar:git-Paper-341]

at java.lang.Thread.run(Thread.java:833) ~[?:?]

Caused by: java.lang.ClassNotFoundException: net.tazpvp.tazpvpcore.Commands.admin.GmcCMD

at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:151) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]

at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:103) ~[paper-api-1.18.2-R0.1-SNAPSHOT.jar:?]

at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?]

... 13 more```

[tender shard]

I love it when people just throw in an error and do not even add any message lol

[tender shard]

is GmcCMD from your plugin?

[subtle folio]

it is

[native nexus]

When people don’t use a link for pasting their code 🥲

[limber mica]

[
  {
    "name": "Wy",
    "description": "yes"
  },
  {
    "name": "Rya",
    "description": "Walks"
  }
]```

[sacred mountain]

okay, how does that relate to an interface?

not seeing it

[tender shard]

?paste your full log pls

[undone axle]

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

[subtle folio]

mk

[tender shard]

both are interesting and useful

[round finch]

can someone help me?
where can I find some good spigot code examples of yamlconfiguration / configuration / memory

[sacred mountain]

lmao bruh

[tender shard]

lol

[sacred mountain]

memory?

[native nexus]

Interfaces are just classes with predefined functions that you want to inherit in multiple instances

But I also am not good at explaining things

So

Uh

[sacred mountain]

that sounds like an abstract class but without the need to override anything it just works

[tender shard]

I was always told "an interface is a contract"

[round finch]

https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/configuration/MemoryConfiguration.html

[sacred mountain]

never seen that 👀

[tender shard]

you have

[ivory sleet]

the huge benefit of interfaces is that they do not allow instance fields and one class can inherit multiple interfaces

[tender shard]

FileCOnfiguration etc extends Memoryconfiguration

[ivory sleet]

@round finch

[sacred mountain]

o

[ivory sleet]

what example precisely

[sacred mountain]

oops

[ivory sleet]

like in terms of design? Or something else?

[round finch]

what about Serializable?
i forgor

[limber mica]

It doesn't look like its an issue in my json because I believe I formatted it correctly

[subtle folio]

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

[tender shard]

no you didnt

[ivory sleet]

Serializable is crappy java serialization

[subtle folio]

line 75 of interest

[ivory sleet]

ConfigurationSerializable is what you probably mean

but that is also kinda meh

[tender shard]

hm is that class actually inside your .jar file? open it with winrar and check if it's included

[round finch]

just trying to find the right way to make functional config code

[tender shard]

it sucks

for example the alias thing never works for me

bukkit still saves it using the full class name

[subtle folio]

All there

[native nexus]

Depends how readable you want to make your files but I would just stick to gson

[ivory sleet]

writing a strategy object to serialize and deserialize objects is probably the wisest choice

[sacred mountain]

that startup ascii is cool

[subtle folio]

Thanks, got bored and made it 😛

[tender shard]

hm then I have no idea

[subtle folio]

thanks..

[ivory sleet]

right

[limber mica]

What is wrong?

[sacred mountain]

how did you log it all with line breaks in the console?

[ivory sleet]

I mean doesnt javadocs suffice for that?

[round finch]

reason for i'm asking i used hours to get hashmap in hashmap

[tender shard]

your json

[ivory sleet]

oh

[sacred mountain]

multimap

[subtle folio]

mhm

[round finch]

i thought to myself maybe i'm being dumb and lack of understanding

[limber mica]

What's wrong in my json?

[ivory sleet]

itsvollx a good way is to write a facade and data transfers that carries the config data

[tender shard]

how the fuck should I know, you never sent it. all you did is send the error and claim that your json is valid

[limber mica]

.

[tender shard]

oh you did send it above lmao

sorry

[sacred mountain]

put it into a json checker

[limber mica]

says its valid

[sacred mountain]

idk looks correct but i dont even know json syntax

[round finch]

so load all data and handle it in some functional fashion?

[tender shard]

that's not the valid that threw the error

[limber mica]

No?

[tender shard]

it says line 1 column 19

your first line only has one character

or did you parse it without newlines in one line?

[limber mica]

Wait what

First line in the json?

Is it not suppose to have one character?

I thought it was suppose to be just [

[native nexus]

Like @sacred mountain said put it in a json checker…

[limber mica]

I did

[sacred mountain]

thay was before i knew it was valid

also i thought it was a large file didnt see how simple it was

[tender shard]

what they sent is valid

[ivory sleet]

interface ConfigFacade {
  void load();

  ConnectionCredentials getConnectionCredentials();
}

class YamlConfigFacadeImpl implements ConfigFacade {
  final Path path;
  final FileConfiguration config;
  
  YamlConfigFacadeImpl(Path path) {
    this.path = path;
    this.config = new YamlConfiguration();
  }

  @Overide void load() {
    try (var reader = Files.newBufferedReader(this.path)) {
      config.load(reader);
    }
  }

  @Overide ConnectionCredentials getConnectionCredentials() {
    return new ConnectionCredentials(
      config.getInt("db.port"),
      config.getString("db.address"),
      config.getBoolean("db.ssl")
    );
  }
  
}

record ConnectionCredentials(int port, String host, boolean useSsl){}

@round finch

just an example (and yes you could load and store the connection credential in a field from load if you wanna use more memory for faster access) [entirely up to you]

[sacred mountain]

question mark paste when

[shadow gazelle]

Are there any examples of allowing people to make recipes in a config anywhere?

[sacred mountain]

what is var

[limber mica]

Apparently it's not formatted but its not

[shadow gazelle]

I'm not sure how I what should do it

[tender shard]

I have a library for that

[subtle folio]

fix was cleaning it

lolz

[sacred mountain]

is var just a generic type that accepts anything given

[ivory sleet]

nope

it infers the type

[native nexus]

Welcome to Java 10

[tender shard]

https://github.com/JEFF-Media-GbR/JeffLib/blob/a56e94dd3b9d227775449cee58e3846fc66a760e/core/src/main/java/de/jeff_media/jefflib/RecipeUtils.java#L40

[sacred mountain]

oh right ok

[shadow gazelle]

Never mind, I found something

[tardy delta]

var str = null kekw

[ivory sleet]

var x = "hi"
compiles to
String x = "hi"

(the type String gets inferred)

[sacred mountain]

so you can supply it with anything you want

[ivory sleet]

well once defined you cant assign random values to it

var x = 1;
x = "kappa"; //this would yield a compile error

[tender shard]

"var" is just short for "use the type of what's behind the = sign"

[sacred mountain]

behind?

[tender shard]

"right of the = sign"

on the right side

[sacred mountain]

oh

[tender shard]

you know what I mean lol

[sacred mountain]

lmao

my computing teacher is currently teaching cubism art in inkscape

[ivory sleet]

sadly as disallowed

[sacred mountain]

im not sure how this is gonna help me in my finals

[tardy delta]

hehe i know

[ivory sleet]

sounds useful

[sacred mountain]

he never teaches much

we're currently learning in VB.NET which is quite a bit older than me

[round finch]

holy sh..
that really something

I feel like armature compared to that
I never specified local storage i mean plugin folder

but awesome code!! ty ty

[tardy delta]

visual basic meh

[ivory sleet]

yeah I mean that would actually specify the file

[tardy delta]

i have to be honest but the windows font looks better than the linux one on discord lol

[sacred mountain]

i can atleast make my own windows program now

[ivory sleet]

so you could do something like
new YamlConfigFacadeImpl(plugin.getDataFolder().toPath().toAbsolutePath().resolve("epicconfiggamer.yml")) or sth

gets a bit long

[round finch]

i barely knows any sql

[ivory sleet]

same

[round finch]

data tables is confusing :(

[ivory sleet]

tho you dont need to know a lot of sql to be able to use it adequately

[sacred mountain]

i created one that bluescreens a windows 7 machine :) because im nice like that to my friends

[sacred mountain]

they should make it not string based

[limber mica]

Yea im confused why its saying its not formatted correctly even though it is

[round finch]

i litterally got no clue

[sacred mountain]

i see sqlite and mysql code and all the tables are just strings of mysql commands

[round finch]

all those shity tut got my head in pain with sql

[sacred mountain]

i guess thats the way to run them

[ivory sleet]

yes

[sacred mountain]

thats why i used yaml for ages

till someone said it sucked

[ivory sleet]

You can still use yaml

its good as a mock implementation

you know, for testing

[round finch]

isn't there sql manage api?

for people with java skills

[sacred mountain]

not for player settings and constant updates like player cooldown and cosmetics tho

[tardy delta]

alot of sql libraries

[ivory sleet]

yes?

[tardy delta]

which handle writing the queries for yo

[ivory sleet]

its doable lightfury

[sacred mountain]

well it didnt look good to me

[ivory sleet]

not scalable

but doable

[sacred mountain]

yeah

with a lot of players

which i do not havve

because i have no friends

[compact haven]

I mean you could use yaml on a replicated remote storage that every other instance also uses

[sacred mountain]

but at least now its more efficient :D

[compact haven]

It’s not impossible, but not recommended…

[sacred mountain]

i debated on whether to try mongodb

[ivory sleet]

you should get familiar with mongo

definitively

[sacred mountain]

apparently its better for bigger data

[round finch]

i probably gotta learn mysql w-w

[ivory sleet]

myeah sorta, I mean depends on use case

[sacred mountain]

document based nosql stuff idk

[compact haven]

PostgreSQL is best for large structured sets

[ivory sleet]

for structured data, postgre as itzdlg mentioned is gold beyond everything

[sacred mountain]

what do you think the best storage system is?

im probably gonna get a "it depends"

[tall dragon]

feel like there is no best

[ivory sleet]

idk depends on the system's needs

[tall dragon]

depends on your needs

xD

[sacred mountain]

called it

[native nexus]

depends

[sacred mountain]

lmaoo

[native nexus]

🖕

[sacred mountain]

yeh i see

[native nexus]

❤️

hehe

[ivory sleet]

I mean redis has become really powerful recently

[sacred mountain]

yeah i was thinking about mongodb and redis for async across servers

[ivory sleet]

but it has some inevitable cons also

[round finch]

wait wait faster data storage?

[tall dragon]

yea i use alot of redis as well

[native nexus]

HikariCP and redis still superior

[sacred mountain]

async is yay

[tall dragon]

mostly pub/sub is rlly nice from redis

[ivory sleet]

myeah

[sacred mountain]

what is pubsih

pub/sub

[tall dragon]

u have channels

[ivory sleet]

an event bus implementation

[tall dragon]

u can publish messages

and other programs can subscribe

[ivory sleet]

like bukkit's event system

[sacred mountain]

ohk

[ivory sleet]

but deployable through multiple nodes

[tall dragon]

yea i got a full on packet system for communication between my servers

works very nicely

[sacred mountain]

minion has somehting like that

the only thing i ever used packets for was showing the minecraft demo mode screen

[native nexus]

A lot of plugins don't need to take it that far tho

[sacred mountain]

on a different note ive been thinking about creating some of my own custom events

PlayerCosmeticSwitchEvent and a couple others

how do i make it accessible by other plugins?

making it an api or something

[round finch]

that sounds cool!

does anything go to your bungeecord?

[tall dragon]

no

[round finch]

tell me your stuff

magic man

[tall dragon]

well its fairly simple. have a packet that you can serialize/deserialize, send, receive them using redis

in short

[round finch]

those all your servers communicate with each another?

[tall dragon]

yea

[round finch]

woaw 😮

[tall dragon]

all servers send statistics like logins, tps, bunch of other stuff

[sacred mountain]

is it possible to create a bungee plugin that allows the player to stay "connected" to a server whilst its restarting (bungee proxy)

[tall dragon]

and thats displayed using grafana

[tender shard]

yeah just create an API .jar. but other plugins must not shade that, or the listeners won't work

[tall dragon]

so i can see everything

[sacred mountain]

ok cool

[tender shard]

other plugins then have to check if your plugin is installed, and if yes, register their listeners for your events

[sacred mountain]

okay

[tall dragon]

for example this is how one of my packets look https://paste.md-5.net/rajosiweko.java

really quite simple

[tardy delta]

gn

[round finch]

what are you using?

some packet api?

[tall dragon]

no

[tardy delta]

sus

[round finch]

Among SUS

[sacred mountain]

what is @NoArgsConstructor and @AllArgsConstructor? sounds a bit counterproductive lmao

[tardy delta]

constructor without and with all args as parameters (all fields i guess)

[tall dragon]

i need a constructor with no args to create the class when deserializing, and one with all when you want to send the packet

[round finch]

Default spigot stuff?

[tall dragon]

public abstract class Packet
{

    public abstract void send(BaosOutputStream out) throws IOException;

    public abstract void receive(BaosInputStream in) throws IOException;
}

no i made it myself. but this is all it is

[tender shard]

why? you can have more than one constructor

[round finch]

🤌 perfection

do you make a listener for ips?

[tall dragon]

no. redis allows you to publish on channels with certain names

you just listen to those

and all that allows me to do cool stuff like this https://paste.md-5.net/ramihepivi.java

[round finch]

Dammm

[tender shard]

is there actually ever ANY reason to use Class.cast(Object) unless you want to use getDeclaredField / getDeclaredMethod later on?

[ivory sleet]

method reference

like map(Blah.class::cast)

(reducing boilerplate)

[tender shard]

makes sense

I just wonder because I just found code like this

        final Object craftAdv = CLASS_CRAFTADVANCEMENT.cast(adv);
        final Object advHandle = getObject(CLASS_CRAFTADVANCEMENT, craftAdv, "getHandle");

and after that, craftAdv is never used again

[ivory sleet]

uh

[tender shard]

so the cast is totally useless here

[ivory sleet]

ye

looks like it

[tall dragon]

oh @tender shard i meant to tell you. i actually managed to make the cow thing work

[tender shard]

nice, how?

[tall dragon]

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

like that

it bassically reregisters the mob with my own method for checking if it can spawn

[buoyant viper]

what does Baos stand for

[tall dragon]

Byte Array Object Serialization / ByteArrayOutputStream

[tender shard]

oh ok nice

[tall dragon]

didnt fully do that myself tho

i got big brain friend haha

[tender shard]

who volunteers to write javadocs for me lol

[ornate patio]

I'm trying to create a custom horse using NMS, here's what I got:

public class SuperiorHorse extends EntityHorse {
    public SuperiorHorse(World world) {
        super(EntityTypes.M, ((CraftWorld) world).getHandle());
    }
}

public enum EntityTypes {

    SUPERIOR_HORSE("Horse", 54, SuperiorHorse.class); 

    private EntityTypes(String name, int id, Class<? extends Entity> custom)
    {
        addToMaps(custom, name, id);
    }

    public static void spawnEntity(Entity entity, Location loc) {
        WorldServer worldServer = ((CraftWorld) loc.getWorld()).getHandle();
        entity.teleportTo((WorldServer) worldServer, new BlockPosition(loc.getX(), loc.getY(), loc.getZ()));
    }

    private static void addToMaps(Class<? extends Entity> clazz, String name, int id) {
        ((Map) Utils.getPrivateField("c", net.minecraft.world.entity.EntityTypes.class, null)).put(name, clazz);
        ((Map) Utils.getPrivateField("d", net.minecraft.world.entity.EntityTypes.class, null)).put(clazz, name);
        ((Map) Utils.getPrivateField("f", net.minecraft.world.entity.EntityTypes.class, null)).put(clazz, Integer.valueOf(id));
    }
}

[tender shard]

are you on 1.17+?

[ornate patio]

the EntityTypes enum is mostly just copy pasted from online

[ornate patio]

yes

[ornate patio]

I'm not sure what to put in addToMaps, right now it causes an obvious error

is there a more modern tutorial for custom entities?

[ornate patio]

im on 1.18.1

[tender shard]

I'd use mojang mappings for 1.17+, then you don't have to worry about weird field names like "c", "d", "f"

[winged anvil]

since persistent data cant be applied to blocks, does someone have an idea how I would store if the block has already been mined by a player?

[ornate patio]

what is that

[tender shard]

with mojang mappings, you can use the "real" names for methods and fields

the names that mojang themselves chose

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

[tender shard]

what's the error?

[ornate patio]

Caused by: java.lang.ClassCastException: class net.minecraft.world.entity.EntityTypes cannot be cast to class java.util.Map (net.minecraft.world.entity.EntityTypes is in unnamed module of loader java.net.URLClassLoader @18769467; java.util.Map is in module java.base of loader 'bootstrap')

i understand what it means, i just have no idea what im doing

[ornate patio]

ooh

if mojang is giving out the obfuscation map out for everyone, why do they still obfuscate -.-

[tender shard]

what is the addToMaps method supposed to do btw?

[tender shard]

yeah makes no sense....

still better than not having any obfuscation map 😄

but yeah it's so stupid

[ornate patio]

uhh

no clue lemme find the tutorial and see

it was a really old tutorial so im pretty sure its outdated

[ornate patio]

ok yeah i honestly dont know lmao

[tender shard]

lol

well I'd simply comment it out for now

[ornate patio]

or wait

I found this comment

ok nevermind

I think its meant to add the entity to bukkit

so that I can spawn it

[tender shard]

oh uuugh

that's not a good idea

idk but hacking into existing enums is a pretty dirty solution

also it's not needed at all

[ornate patio]

what's the preferred way of doing it

[tender shard]

just do the rest as you already did but ignore the "addToMaps" part

[winged anvil]

is this persistent?

[tender shard]

sure

[winged anvil]

sure??

[tender shard]

yes

that's the whole idea for it lol

[winged anvil]

hmm

[tender shard]

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

or github:
https://github.com/JEFF-Media-GbR/CustomBlockData

[lethal coral]

    @EventHandler
    public void onProjHit(ProjectileHitEvent event){
        if(event.getHitEntity() != null){
            event.setCancelled(true);
            return;
        }
        Projectile projectile = event.getEntity();
        if(!projectile.hasMetadata("gunType")) return;
        Location location = projectile.getLocation();
        Block block = event.getHitBlock();
        assert block != null;
        if(block.getType() == Material.BARRIER || block.getType() == Material.AIR) return;
        block.setType(Material.AIR);
        location.getWorld().playSound(location, block.getBlockSoundGroup().getBreakSound(), 0.75f, 1f);
        location.getWorld().spawnParticle(Particle.BLOCK_CRACK, block.getLocation(), 10, block.getBlockData());

why don't the particles spawn

[tender shard]

well

because AIR doesn't have any "breaking" animation

[vocal pine]

Hi sorry to kinda interrupt whats going on above - Anyone have any idea how to make Minecarts NOT collide with players & people? I've tried cancelling the event - but it loses all velocity - And tried cancelling the collision - but it launches backwards

Is there a way to make pairs of entity instances have no collisions specifically for each other without affecting anything else?

I want minecarts to just pass through each other and people with 0 velocity change

Searched & searched and there's lots of threads with no answers

[tender shard]

I don't think you can do it that easily. maybe you can do that by extending the NMS minecart and using that instead

[lethal coral]

oops

😩

[vocal pine]

Yikes ok I'll take a look

Thank you

[tender shard]

np. if you find a way to do it, I'd be interested in how it works 😄

probably you can override some method from your custom minecart class but I am not sure whether its actually part of the minecart class, or of the world itself or sth

[quaint mantle]

wouldn't scoreboard teams also work

[vocal cloud]

Isn't that player only

[quaint mantle]

I thought it could be used with other entities too

[tender shard]

I just checked. the collisions and physics are inside AbstractMinecart(or in spigot mappings: EntityMinecartAbstract) in the method "tick()". You could override it but it contains the whole logic so it's pretty long....... I fear what you wanna do is quite complicated lol

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

this is the method you'd have to override

[lethal coral]

meta.displayName(MINI_MESSAGE.deserialize("<reset><gradient:gold:yellow>Feather Powerup"));
why is it still italicized

(this is for an item name btw)

[vocal pine]

Thank you that really helps! I'll keep note of this and come back to it, will update if I get it working

[ornate patio]

ok so im trying to install mojang remapped using the tutorial you gave me, and now im getting red underlines telling me that net.minecraft... can't be resolved

wrong reply oops

[tender shard]

most casses have different names in mojang mappings

for example EntityArmorStand is simply ArmorStand in remapped

[ornate patio]

oh

I see

[tender shard]

you basically now have exactly the names for everything like mojang themselves are using

does someone know if I can tell javadoc to add certain text to the generated method description when there's a certain annotation on the method?

For example here, I annotated it with "@NeedsNMS". I want the javadocs to automatically add an additional sentence for every method with this annotation

[sullen marlin]

you could make a doclet probably

thats all I know

[tender shard]

alright thx Imma google that

[ornate patio]

@tender shard figured everything out after installing mojang mapped, thanks!

god this is so much easier i wish i knew this earlier

[tender shard]

perfect!

[tender shard]

yeah I always try to make people using mojang mappings lol

I knew they existed for a year before I switched to them

I was afraid of all this pom.xml stuff lol

[ornate patio]

this is my first time working with nms

i was expecting it to be a huge pain

but this makes things so much easier

just one more thing

is this a good way to spawn my custom entity?

public static void spawnEntity(Entity entity, Location spawnLocation) {
    ServerLevel serverLevel = ((CraftWorld) spawnLocation.getWorld()).getHandle();
    serverLevel.addFreshEntity(entity);
    entity.setPos(spawnLocation.getX(), spawnLocation.getY(), spawnLocation.getZ());
}

[tender shard]

looks fine to me

but I have to add that I never did any "custom entity" stuff myself

[ornate patio]

alright

[winged anvil]

?paste

[undone axle]

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

[winged anvil]

@tender shard im super ass with maven and I've got the right things in my pom from your spigot resource but I still get this error? https://paste.md-5.net/fayoyuzixa.cs

[fossil lily]

Can I use .getDisplayName() on a default item?

[ivory sleet]

there is

[humble tulip]

What does needsnms do?

U can use existing ones like lamp or acf which is annotation driven and really easy to use

Or u can create your own but a hashmap in the command to the subcommand is possible

[ivory sleet]

Pebble so basically a full command is a tree of literals and arguments

and each branch executes basically

what you got as of now?

[humble tulip]

Hashmaps are for fast access so u don't iterate thru em

[waxen plinth]

Are you looking to have even better abstractions or are you trying to build stuff yourself?

[humble tulip]

https://www.spigotmc.org/threads/acf-beta-annotation-command-framework.234266/

[waxen plinth]

Well here's how I write commands:

kill player:target {
  hook kill
  permission kill.use
}```

@CommandHook("kill")
public void kill(CommandSender sender, Player target) {
  target.damage(1000);
}```

That's a basic example

Funnily enough I'm deprecating this library soon in favor of one I'm currently working on, but the concept is more or less the same so it's pretty effortless to port projects over

[humble tulip]

https://www.spigotmc.org/threads/lamp-a-highly-flexible-extremely-powerful-and-customizable-commands-framework.544055/

[waxen plinth]

If you want to compare how you'd implement commands in mine vs others, I'd be happy to give more examples

[tender shard]

do you have the "maven-shade-plugin" in your pom.xml?

[waxen plinth]

Actually come to think of it I should make a spigot forum thread for my new library when it's ready

[tender shard]

currently nothing

it's just to notify people that this method uses NMS

[tender shard]

so people who use the NMS methods know that it might break on new MC versions if they don'T update the lib

[ivory sleet]

yes

[tender shard]

while methods without @NeedsNMS will continue to work fine without needing updates for the lib

[waxen plinth]

Yeah breaking it up into methods is always a good idea

[tender shard]

breaking people's legs however is not a good idea

[dusk flicker]

i mean

fuck the legs

[humble tulip]

U can do both

Basically if subcommand is in map execute that

If not let the command be the executor

So if you have /mine craft create dirt

[tender shard]

you need to add the maven-shade-plugin, AND use maven to compile (not your IDE)

[humble tulip]

If craft is in the map, oass create dirt to your subcommand

[tender shard]

https://blog.jeff-media.com/common-maven-questions/ read the second headline pls ("how to shade dependencies")

[humble tulip]

If not, let your command handle it

[winged anvil]

i love you

[tender shard]

😗

[humble tulip]

🏳️‍🌈

[tender shard]

https://tenor.com/view/why-are-you-why-are-you-gay-pepe-julian-who-is-gay-you-are-gay-gif-15004128

[humble tulip]

is that the Why are you gay dude?

[quaint mantle]

"You are gae"

[tender shard]

yes

[humble tulip]

😂

[winged anvil]

?paste

[undone axle]

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

[crisp steeple]

jesus nms is messy

[winged anvil]

for some reason I still can't get it to work. can you take a look at this for me and see if I'm messing something up? https://paste.md-5.net/aluyusageb.xml

[tender shard]

yep lol

but what did you expect? that code was written by a tiny studio in sweden and suddenly the game became sooo big

[quaint mantle]

guys im selling my iphone 2

[tender shard]

ok but not here

[slate mortar]

tf

[crisp steeple]

true

[tender shard]

you know that situation when you start a new project and you do everything as clean and good practice as possible

and a year later it's all messed up lol

[crisp steeple]

yep

[tender shard]

happens to me all the time

[quaint mantle]

and he also wrote it in java

[crisp steeple]

"well im not going to be using this too much so its ok if its a little messy"

[quaint mantle]

fuck java

[tender shard]

exactly lol

[tender shard]

i love java

[quaint mantle]

i like the syntax and stuff

but

its not low level enough for me

and the jvm takes too much memory

[tender shard]

yeah well

java not being low level is both good and bad

[waxen plinth]

Valhalla when 🥺

[tender shard]

also you can always just download more ram if needed

[quaint mantle]

well just like windows, java likes to use as much memory as it can

[tender shard]

huh?

windows uses pretty few ram

linux always uses as much as it can

[waxen plinth]

lol

[tender shard]

for disk caching etc

[lethal coral]

public static List<Block> getNearbyBlocks(Location location, double radius) {
        List<Block> blocks = new ArrayList<>();
        for(double x = location.getBlockX() - radius; x <= location.getBlockX() + radius; x++) {
            for(double y = location.getBlockY() - radius; y <= location.getBlockY() + radius; y++) {
                for(double z = location.getBlockZ() - radius; z <= location.getBlockZ() + radius; z++) {
                    blocks.add(location.getWorld().getBlockAt((int) Math.floor(x), (int) Math.floor(y), (int) Math.floor(z)));
                }
            }
        }
        return blocks;
    }

why does this give me a cube

[quaint mantle]

i saw something where windows would use like 4gb if you used 16gb or something

[tender shard]

I got anno 1800, fl studio, photoshop, 11 intellij projects, about 100 tabs in chrome open and still it's not at 100% lol

[waxen plinth]

Because you're iterating in a cube radius

[lethal coral]

😩

[tender shard]

what else would it give you?

[lethal coral]

a sphere 💀

[waxen plinth]

Why

[winged anvil]

what

[lethal coral]

I didn't look into the math

[quaint mantle]

LMAO

[tender shard]

you could simply only add the blocks if the distance to the center is less than X but the proper way would be to improve your math 😛

[crisp steeple]

maybe thats your problem

[waxen plinth]

If you want a sphere then filter it to only blocks with a distance from the center <= radius

[quaint mantle]

this is what copy and paste does to you

[lethal coral]

that seems like the lazy way

[waxen plinth]

It's a good way

[lethal coral]

📸 you caught me

[waxen plinth]

Just use distanceSquared instead of distance

[crisp steeple]

also theres no reason to Math.floor

[waxen plinth]

Well

[tender shard]

https://github.com/JEFF-Media-GbR/JeffLib/blob/master/core/src/main/java/de/jeff_media/jefflib/BlockUtils.java
I always use this if I need a sphere but it's quite inefficient

[waxen plinth]

It does technically have different behavior

[tender shard]

because it loops over blocks that you don't actually need

but too lazy to look up the proper math

[waxen plinth]

floor always rounds down

(int) rounds towards zero

[crisp steeple]

i suppose yeah

but that just seems like it would make it inaccurate

[waxen plinth]

But you want the consistency here anyways

Just cast to int

[lethal coral]

🤔

[quaint mantle]

what

[waxen plinth]

I don't see anything wrong with it

[carmine valley]

hey guys, what is the proper event for if I want to check if a player hit another player?

[quaint mantle]

why

[waxen plinth]

EntityDamageByEntityEvent and ensure both entities are players

[carmine valley]

is this event available on 1.8.8?

[waxen plinth]

.-.

[quaint mantle]

i asked why would casting to int round towards zero

[waxen plinth]

No

It's impossible to check that on 1.8

[quaint mantle]

update

[waxen plinth]

Plugins can't listen for events on 1.8 you just have to poll the player's health every tick

/s

I'm gonna go get ice cream

[carmine valley]

what I'm trying to make is a plugin that would increase the amount of knockback a player gets depending on how many times he has been hit, are you saying such plugin is not possible on 1.8.x ?

[tender shard]

well I'm basically iterating over blocks that aren't needed

[waxen plinth]

So?

[tender shard]

so it'd be better to narrow down the loop somehow 😄

[lethal coral]

    public static List<Block> getNearbyBlocks(Location initLoc, double radius) {
        List<Block> blocks = new ArrayList<>();
        for(double x = initLoc.getBlockX() - radius; x <= initLoc.getBlockX() + radius; x++) {
            for(double y = initLoc.getBlockY() - radius; y <= initLoc.getBlockY() + radius; y++) {
                for(double z = initLoc.getBlockZ() - radius; z <= initLoc.getBlockZ() + radius; z++) {
                    Block block = initLoc.getWorld().getBlockAt((int) x, (int) y, (int) z);
                    if(initLoc.distanceSquared(block.getLocation()) <= radius)
                        blocks.add(block);
                }
            }
        }
        return blocks;
    }

does this look overly inefficient :troll:

[tender shard]

but who cares

[tender shard]

almost

[waxen plinth]

To my knowledge there isn't really a better way

[tender shard]

radius should be radius*radius

because you use distanceSquared

[lethal coral]

I see

[waxen plinth]

Like yes there are algorithms that would get you to iterate over only blocks within the sphere to begin with

But the overhead of those algorithms negates the benefit

[carmine valley]

.

[tender shard]

if(initLoc.distanceSquared(block.getLocation()) <= radius * radius)

[tender shard]

oh that's good lol

[quaint mantle]

use brackets {

[waxen plinth]

Instead of asking me if an event exists in 1.8.8 you could just type it into your IDE

It will tell you very quickly

[lethal coral]

it's a 1 liner

[carmine valley]

I did and didn't find it, but that wasn't my question

[waxen plinth]

I should make an n-dimensional for loop utility

[quaint mantle]

google codestyle

[lethal coral]

I typically only use brackets if it's > 1 line

[carmine valley]

is there any other proper events I can call to make such knockback plugin?

[lethal coral]

this is my coding style

😁

[waxen plinth]

I should hope so

[quaint mantle]

it fucking sucks

[waxen plinth]

You have to use brackets if it's more than one line

[quaint mantle]

@tender shard why the bitshifts

    public static List<Chunk> getChunks(final World world, final BoundingBox box, final boolean onlyLoadedChunks) {
        final int minX = (int) box.getMinX() >> 4;
        final int maxX = (int) box.getMaxX() >> 4;
        final int minZ = (int) box.getMinZ() >> 4;
        final int maxZ = (int) box.getMaxZ() >> 4;

[waxen plinth]

Same as * 16

Wait no

/ 16

<< 4 is * 16

[lethal coral]

no need for the brackets if it's only one line but okay

[tender shard]

because minX etc are chunk coordinates

[waxen plinth]

1 is the same as dividing by 2 (rounding down)

[quaint mantle]

nerds man

[waxen plinth]

It's faster than division

[quaint mantle]

by 2

[waxen plinth]

Division is one of the slowest operations a CPU can do

Yes

[tender shard]

I wonder whether javac would automatically turn / 16 into >> 4

[waxen plinth]

Probably not

[tender shard]

because I mean... why wouldn't it do that?

[quaint mantle]

no

[waxen plinth]

The java compiler makes very few optimizations

[tender shard]

but why

[waxen plinth]

The JVM might

But it's an implementation detail

[quaint mantle]

not even declarations used in returns

[tender shard]

yeah anyway the bitshifts are there to turn world coords into the chunk's coords imajin

[quaint mantle]

String a = getSomeString();
return new SomeObject(a);

the bytecode will store a then load a after

i think the jvm might optimize this

[waxen plinth]

¯_(ツ)_/¯

You don't need to worry about that kind of thing unless you're really trying to squeeze every possible drop of performance out of your code

It's a micro-micro-optimization

[tender shard]

yeah same for the bitshifting thing

I just used it because I thought "why not"

[quaint mantle]

well now i know a >> b is the same as a / (Math.pow(2, b))

[waxen plinth]

Rounding down

Or towards zero rather

Actually no

Rounding down

Because of two's complement

[quaint mantle]

twos complement is stewpid

i like unsigned

[waxen plinth]

Ok go write everything without negative numbers

[quaint mantle]

i could

[waxen plinth]

boolean negative;

[quaint mantle]

yup.

[waxen plinth]

I bet you'd do that

Extra 8 bits

Or up to 64 depending on jvm

[quaint mantle]

we need to make an OS that stores booleans as one bit

[waxen plinth]

That would be extremely dumb

[quaint mantle]

ik

[waxen plinth]

boolean[]s though

I think the JVM can optimize them into one bit each

[quaint mantle]

if its length % 8 == 0

probably

🤨

[waxen plinth]

Why would it need to be

Just reserve the extra unused bits, it doesn't matter

[quaint mantle]

oh ye

[waxen plinth]

Worst case scenario you've got an extra 7 bits which is the minimum wasted on each boolean otherwise

[quaint mantle]

you should add that into the jvm

[waxen plinth]

The tradeoff is that it's slower to mutate and access the booleans

[waxen plinth]

I'm pretty sure some JVMs already have it

[humble tulip]

Booleans aren't one bit?

[lethal coral]

y'know I'm thinking this sphere isn't very good 😂

I mean it's fine like I'll still use it, just odd

[waxen plinth]

No, how could they be?

[humble tulip]

0 or 1

[waxen plinth]

The minimum indexable address on any system is 8 bits

[humble tulip]

Really