:p
#help-development
young knoll
exotic zinc
what
tall furnace
Useful info: When running your server, it now unpacks the libraries it uses into a folder so you can just grab the version of Apache Lang (or whatever you want) that Spigot is using without having to look for the jar online
Snakeyaml for instance gets unpacked into the folder. It's great.
exotic zinc
you can also download the javadoc with maven if you decide to use maven
young knoll
Sure but why would you need the jar
tall furnace
Sure but why would you need the jar
...wdym why?
young knoll
Why would you need the jar of the dependencies
tall furnace
Well, if you need to use StringUtils for a bunch of stuff, that is available with Lang. If you want to use YAML for a bunch of stuff, snakeYaml is right there available.
I guess alot of people here don't code outside of spigot though
young knoll
True but if you want to use other dependencies you probably should be using a build tool
tall furnace
Depends on if it's a proper project or if it's a distraction-type side-chick of a project that you're doing out of curiosity and procrastination
livid elbow
Vaggos22 just create something unique or search good plugin ideas
tall furnace
Or take an existing idea and just make it yourself. Excellent practice.
Also that way you get to customize everything
tall furnace
I'm making a currency plugin, a chest-shop plugin, a cobblestone-ore generator plugin, and a skyblock plugin simultaneously. I have a hard time doing one thing at a time.
weak bear
can we help me pls I have a NullPointerException
final DbConnection dbConnection = loginFactionPlugin.getDatabaseManager().getDbConnection();
import java.sql.SQLException;
public class DatabaseManager {
private DbConnection dbConnection;
public DatabaseManager(){
System.out.println("Mysql co");
this.dbConnection = new DbConnection(new DbCredentials("localhost", "root", "", "faction", 3306));
System.out.println(dbConnection);
}
public void close(){
try {
this.dbConnection.close();
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
public DbConnection getDbConnection() {
return dbConnection;
}
}```Here is my DatabaseManager Class
exotic zinc
and you open the connection?
weak bear
yes my database is connected
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.logging.Logger;
public class DbConnection {
private DbCredentials dbCredentials;
private Connection connection;
public DbConnection(DbCredentials dbCredentials){
this.dbCredentials = dbCredentials;
this.connect();
}
private void connect(){
try {
Class.forName("com.mysql.jdbc.Driver");
this.connection = DriverManager.getConnection(this.dbCredentials.toURI(), this.dbCredentials.getUser(), this.dbCredentials.getPass());
Logger.getLogger("Minecraft").info("Successfully connected to DB.");
} catch (SQLException | ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
public void close() throws SQLException {
if(this.connection != null) {
if(!this.connection.isClosed()){
this.connection.close();
}
}
}
public Connection getConnection() throws SQLException {
if(this.connection != null){
if(!this.connection.isClosed()){
return this.connection;
}
}
connect();
return this.connection;
}
}```is my DatabaseConnection
remote swallow
dont use minecrafts logger, and you are prob better using hikaricp
weak bear
Okay so you think that can be better with HikariCP?
but do you have a request for resolve the problem ?
remote swallow
its a lot better setup and you dont need to include a driver
little panther
Hello, im getting an error when im trying to start my plugin. Is someone able to help?
error: https://pastebin.com/rimn42qT
Main-class: https://pastebin.com/Tjyq3fsc
should be another class
oh alright. that helps
thanks for now
pseudo hazel
does anyone know im I am allowed to use minecraft textures/models in a web editor for my plugin?
pseudo hazel
okay that's too bad
understandable but oh well
i guess I wont make a web editor đ
tardy delta
bruh last time i use gradle
sterile token
bruh last time i use gradle
yeah they are so fkg annoying, so far i blocked them so they dont send spam to me
sterile token
Why did you give them an email
you need it, for updating gradle or if you register on they site for doing other things
sterile token
oh weird, in my case its asked to signup, like doesn Java for downloading Jdk's
exotic zinc
where do you donwload gradle from?
sterile token
where do you donwload gradle from?
the first link googles give, maybe wasnt the original site
sterile token
oh no its was diff
young knoll
Yeah Iâve never given gradle an email
tardy delta
dunno what they needed it for but it seems it was required or i wouldnt have done it
damn gmails ui looks still that outdated like 10 years ago
soft hound
Okay so I need some help from you guys, is it possible to connect to a server with a .jar file, something similar to an afk client?
I know this is not spigot related, but I couldn't find anything.
hazy parrot
Okay so I need some help from you guys, is it possible to connect to a server wi...
What are you trying to make
soft hound
Something like an AFK client, where you just put your email/password into a config.yml and it logs into a server.
exotic zinc
so basically you want to hack?
sterile token
Maybe he wants to do what i was planning, creating a real fake client which stays afk for the reason of plugin messaging channel, so then it doesnt sucks telling theres no online players - Hahaha
little panther
do anyone know how to solve this error? https://pastebin.com/zjbGkQR8
quaint mantle
do anyone know how to solve this error? https://pastebin.com/zjbGkQR8
Array out bound && NullPointer
little panther
Array out bound && NullPointer
can i somehow know what array?
tardy delta
what happened again with emails and passwords in a text file hmm?
young knoll
Wut
jagged bobcat
How could I make it so player can continue flying after switching to survival from creative. This isn't working
@EventHandler(ignoreCancelled = true, priority = EventPriority.HIGH)
public void onGamemodeChange(PlayerGameModeChangeEvent event){
event.getPlayer().setAllowFlight(true);
event.getPlayer().setFlying(true);
}
Try delaying it a tick
jagged bobcat
kk
jagged bobcat
Try delaying it a tick
worked
arctic shuttle
I was wondering if someone could help me code something?
exotic zinc
what
sterile token
I was wondering if someone could help me code something?
?ask
undone axleBOT
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!
arctic shuttle
?ask
undone axleBOT
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!
exotic zinc
ask what you want
arctic shuttle
?ask help coding
undone axleBOT
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!
arctic shuttle
?ask coding a /withdraw command
exotic zinc
tell us what you are looking for
arctic shuttle
?ask coding a /withdraw command
undone axleBOT
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!
arctic shuttle
Ok
exotic zinc
why is it so hard to understand?
sterile token
?ask coding a /withdraw command
Have you code before? If not, have you learnt java before coding
arctic shuttle
Have you code before? If not, have you learnt java before coding
Im ok
Not that good
rough ibex
what does this /withdraw command do
exotic zinc
i think he wants us to code it
arctic shuttle
Withdraws attack dmge
arctic shuttle
i think he wants us to code it
No i just need a little help
sterile token
No i just need a little help
But have you code before or not?
exotic zinc
do you already have a code?
sterile token
We cant help you if we dont know if you know how to code
arctic shuttle
do you already have a code?
Have you heard of strength smp?
Its when you kill someone you get +1 atk dmge
I was trying to make a command to withdraw strength
sterile token
Its when you kill someone you get +1 atk dmge
We cant help you if we dont know if you know how to code?? Also if you have any code provide it please
arctic shuttle
We cant help you if we dont know if you know how to code?? Also if you have any ...
I do
Just not the best
orchid trout
đ„°
sterile token
right
So whats exactly yo uare trying to do
You want to get help about coding smth?
arctic shuttle
Make a /withdraw command to withdraw attack damage
arctic shuttle
You want to get help about coding smth?
Yes pls
sterile token
perfect
arctic shuttle
k
orchid trout
i watched kody simpson
sterile token
learn java -> learn spigot api
dont be rude, he told he learnt java Âż?
orchid trout
he has to learn the spigot api too
rough ibex
it's not rude
sterile token
he has to learn the spigot api too
but didnt he say he already code?
arctic shuttle
he has to learn the spigot api too
Oh ok
arctic shuttle
but didnt he say he already code?
I can a bitâŠ
sterile token
If you havent code anything, first steap is learning how to code in plain Java. Then learn how to use apis or libraries
arctic shuttle
Ty lemme try
sterile token
Ty lemme try
I have some useful links if you want them
undone axleBOT
vivid skiff
How can i change a player vision with the enderman vision in nms?
rough ibex
enderman vision is through a shader
i'm not sure you can
since I believe those shaders are loaded client side and there's no server packet for it
young knoll
You could force them to spectate an invisible enderman I guess
vivid skiff
since I believe those shaders are loaded client side and there's no server packe...
There are some plugins that do this so it should be possible
rough ibex
then find those plugins and look at their source
rough ibex
You could force them to spectate an invisible enderman I guess
Ah that's true, I hadn't thought of that.
orchid trout
jail
young knoll
Ender jail
rough ibex
condemned to being an enderman
not that bad
just extremely hydrophobic and non confrontational
vivid skiff
then find those plugins and look at their source
The one i found uses protocollib i wanted to do it with nms
brave sparrow
The one i found uses protocollib i wanted to do it with nms
the way they do it with protocollib will just need to be slightly changed to use NMS instead
orchid trout
ok, alex
weak bear
Do you know why I have this error ?
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/zaxxer/hikari/HikariDataSource
I try to compile hikariCP in my plugins but it doesnt work
dependencies {
compileOnly "org.spigotmc:spigot-api:1.12.2-R0.1-SNAPSHOT"
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation("com.zaxxer:HikariCP:5.0.1")
}
remote swallow
dont use the jar, its on maven central iirc
exotic zinc
they are using central
weak bear
what's that?
weak bear
I don't have the jar
exotic zinc
do you have multiple jars in the build folder?
weak bear
no I just have my plugin in libs/
weak bear
How? can you explain pls
young knoll
weak bear
ok so what I can do for implement Hikari CP in my plugin
exotic zinc
Use the shadow gradle plugin
this .
weak bear
id 'java'
}
group = 'fr.spectr2155e'
version = '1.0'
repositories {
mavenCentral()
maven {
name = "spigotmc-repo"
url = "https://hub.spigotmc.org/nexus/content/repositories/snapshots/"
}
maven {
name = "sonatype"
url = "https://oss.sonatype.org/content/groups/public/"
}
}
dependencies {
compileOnly "org.spigotmc:spigot-api:1.12.2-R0.1-SNAPSHOT"
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation("com.zaxxer:HikariCP:5.0.1")
}
def targetJavaVersion = 8
java {
def javaVersion = JavaVersion.toVersion(targetJavaVersion)
sourceCompatibility = javaVersion
targetCompatibility = javaVersion
if (JavaVersion.current() < javaVersion) {
toolchain.languageVersion = JavaLanguageVersion.of(targetJavaVersion)
}
}
tasks.withType(JavaCompile).configureEach {
if (targetJavaVersion >= 10 || JavaVersion.current().isJava10Compatible()) {
options.release = targetJavaVersion
}
}
processResources {
def props = [version: version]
inputs.properties props
filteringCharset 'UTF-8'
filesMatching('plugin.yml') {
expand props
}
}```Here is my build.gradle
exotic zinc
question
weak bear
How I can do for implement hikari CP while using shadowJar
exotic zinc
why do you use gradle if you don't know how to use it. If you want to start with developing use maven. its easier to understand and iirc you don't have to worry about shading since the plugin is added automatically by the intellij plugin.
young knoll
Fairly sure all you need to do is add the plugin and then run gradle shadowJar
exotic zinc
probably
timber mural
bruh why am i not able to send images here
exotic zinc
but don't use gradle if you don't know how to use it and if you are clearly not willingly to learn groovy/kotlin. If you want to use a builds stem then use maven. It does its job for small plugins
remote swallow
no verified
exotic zinc
bruh why am i not able to send images here
timber mural
Alright so i have a question, how to get all of 3x2 empty spaces in radius of 50 and spawn a mob in the center of them?
young knoll
Well youâd have to scan every block in that radius, if itâs air then check if itâs the right shape/size and then spawn the mob
Of course you can do some optimization
Since you are looking for spaces that are 2x2 you can scan every other block instead
timber mural
Because scanning for them wonât be fast
it's not that slow
rough ibex
and you can only scan below a certain Y
timber mural
i tried doing it and it does the thing instantly
timber mural
and you can only scan below a certain Y
i dont care what level it is
but the empty spaces are in the blocks
like in the picture
young knoll
I mean of course it isnât going to take several seconds
But if you are doing it continuously itâs going to hurt
timber mural
But if you are doing it continuously itâs going to hurt
nope
only one manual use through the command
young knoll
Youâll probably be fine then
timber mural
yep but i still don't know how i should do it
i just need a general idea of how to
because i do not know
young knoll
Well youâd have to scan every block in that radius, if itâs air then check if it...
.
tardy delta
subtitles be like
timber mural
Well youâd have to scan every block in that radius, if itâs air then check if it...
what do you mean checking if it's the right shape
young knoll
Once you find air, check nearby blocks to see if they match the shape you want
timber mural
Once you find air, check nearby blocks to see if they match the shape you want
so i assume i have to make a loop to check nearby blocks of those nearby blocks
if I want to have a custom radius
young knoll
Yes
timber mural
and then since it's air space in blocks i just need to check if it's surrounded by something that is not air
young knoll
Yep
river oracle
are dashes an illegal character in SQL? is there anyway I can force the ability to use dashes or will I have to change up my current format
?paste
undone axleBOT
river oracle
https://paste.md-5.net/ibepaxeqen.cs this is my error
INSERT INTO %s (_id, document) VALUES (?, ?))
why do you use dashes?
river oracle
why do you use dashes?
its what I was using with mongo
simply kept the same format
it'd be bothersome if it was an illegal character though
exotic zinc
i would switch to proper sql conventions
river oracle
as I'd need to add a restriction to every implementation of my database
river oracle
i would switch to proper sql conventions
I'm already ignoring like 99% of those
exotic zinc
then its time to not ignore those
river oracle
so if I can use dashes I'd like to know how
river oracle
then its time to not ignore those
unfortuantely NoSQL formats don't work well with SQL, so no for my use case its not really practical
river oracle
private static final String CONNECTION_STRING = "jdbc:sqlite:";
private static final String SQLITE_DATABASE_PATH = System.getenv("SQLITE_DATABASE_PATH");
private static final String COLLECTION_NAME = "test-collection";
private static final String DOCUMENT_ID = "test-document";
pretty much everything
exotic zinc
https://paste.md-5.net/ibepaxeqen.cs this is my error
```sql
INSERT INTO %s (_id...
is this a prepared statement?
that %s is confusing me
river oracle
yes, but prior to execution the %s is replaced with a table name
private static final String INSERT_EMPTY_DOCUMENT = "INSERT INTO %s (_id, document) VALUES (?, ?))";
private static void addEmptyDocument(Connection connection, String collectionName, String id)
throws IllegalStateException {
final String query = String.format(INSERT_EMPTY_DOCUMENT, collectionName);
try (final var statement = connection.prepareStatement(query)) {
statement.setString(1, id);
final Document document = new Document();
document.put("_id", id);
statement.setString(2, document.toJson());
statement.execute();
} catch (SQLException e) {
throw new IllegalStateException("Failed to add empty document to table '" + collectionName + "'", e);
}
}
you can try something like
INSERT INTO "%s" (_id, document) VALUES (?, ?))
unfortuantely looks like neither '%s' nor "%s" works
exotic zinc
huh
river oracle
nope error seems to be around the - as well
- is blacklisted I didn't know _ was as well
mm musta miss clicked
one second let me try wrapping table name with %s again
okay yeah I got it working now
exotic zinc
create table "abc-wwww" (
"_id" int,
"name" varchar(255),
"age" int
)
this works for me
exotic zinc
okay yeah I got it working now
i see
river oracle
```sql
create table "abc-wwww" (
"_id" int,
"name" varchar(255),
"ag...
morice likely mixed up _ and -
- is blacklisted if you don't wrap it in string tags
exotic zinc
`-` is blacklisted if you don't wrap it in string tags
true
thats why i thought adding string tags may be the solution
first issue is not using proper sql conventions
bit if it works eh
can do views or stored procedures though
river oracle
first issue is not using proper sql conventions
this issue will be ignored I wish there was a nice replacement for SQLite with NoSql for local databases but there isn't outside of android
Realm currently doesn't work on computers
and they don't have plans on adding support either
exotic zinc
this issue will be ignored I wish there was a nice replacement for SQLite with N...
h2?
river oracle
Issue is I much prefer mongo when it comes to server databases however there is nothing locally outside of json
which would be a mess to make my own database for instead of just using something that already exists even if I have to abuse it a little
exotic zinc
I did not enjoy the time with mongo
i love creating tables and playing around with stored procedures
river oracle
I did not enjoy the time with mongo
I worked with mongo in prod so its where I'm most comfortable for one and two the storage format makes more sense to me
exotic zinc
gotta love these statements
-- fetch the data from the OLTP database
open cursor for select od.order_id,
od.product_id,
od.price_per_unit,
od.quantity,
od.discount,
o.order_date,
o.shipped_date,
o.freight_cost,
cs.customer_id,
cs.company_name as customer_name,
cs.city as customer_city,
cs.country as customer_country,
pe.personnel_id,
pe.first_name,
pe.last_name,
si.shipper_id,
si.company_name as shipper_name,
p.product,
c.category_id,
c.category_name,
s.supplier_id,
s.company_name,
s.city,
s.country
from oltp.order_details od
join oltp."order" o on o.order_id = od.order_id
join oltp.product p on p.product_id = od.product_id
join oltp.category c on c.category_id = p.category_id
join oltp.supplier s on s.supplier_id = p.supplier_id
join oltp.customer cs on o.customer_id = cs.customer_id
join oltp.personnel pe on pe.personnel_id = o.personnel_id
join oltp.shipper si on o.shipper_id = si.shipper_id;
Java drivers suffice for me :P they are very nice to work with
young knoll
Beautiful
exotic zinc
Java drivers suffice for me :P they are very nice to work with
my longest stored procedure so far is 130 lines xD
river oracle
<https://github.com/nitrite/nitrite-java> maybe?
how tf you find this so fast
the other day I looked a few hours for nosql alternatives
pretty much everywhere
river oracle
exotic zinc
f
river oracle
Duck Duck Go moment
exotic zinc
bruh
river oracle
exotic zinc
baeldung my beloved
young knoll
đŠ
river oracle
baeldung my beloved
those damn mongo queries they are too complex
final Document document = collection.find(new Document("_id", documentId)).first();
bookmarked thank you so much
need to try google after Duck Duck GO next time
remote swallow
Thats quackers
exotic zinc
need to try google after Duck Duck GO next time
is duckduck in anything better besides dark web?
river oracle
is duckduck in anything better besides dark web?
dark web?
duckduck go doesn't touch the dark web
ivory sleet
Lol ye
river oracle
I can't wait to start using my database API :3
I've never been so genuinely excited to finish something
river oracle
same with cosmos
que es "cosmos"
river oracle
hmm looks interesting
I'm trying to reimpl what database type of thing we used at my work in an open source project
so essentially had to start from scratch and code this myself with keeping the data model in mind
tender shard
why ping here
ornate patio
How can I check if a block is a sign
but any kind of sign, i dont wanna list out every wood type
nvm just found it
if (Tag.SIGNS.isTagged(block.getType())) {
}
instanceof Sign probably better
block instanceof Sign?
sullen marlin
state or data
young knoll
Tags can be modified with datapacks
However datapacks can also make new tags which can be very useful
ornate patio
i dont see the issue
young knoll
Well
Datapacks might be stupid and add potatoes to the sign tag
Granted no datapack worth using is going to do that
But still
regal scaffold
Hey,
I have the following code in 1.17.1 using spigot mappings
PacketPlayOutPosition positionPacket = new PacketPlayOutPosition(
0,0,0,
recoil,
recoil / 2,
Set.of(
PacketPlayOutPosition.EnumPlayerTeleportFlags.a,
PacketPlayOutPosition.EnumPlayerTeleportFlags.b,
PacketPlayOutPosition.EnumPlayerTeleportFlags.c,
PacketPlayOutPosition.EnumPlayerTeleportFlags.d,
PacketPlayOutPosition.EnumPlayerTeleportFlags.e
),
0,
true
);
I want to update to 1.19.4
- Do I keep using spigot mappings so I don't have to change every single line where nms was used? Do I start using mojang-mappings and just deal with changing everything correctly? (It was pretty big)
- I need some tips using screamingsandals or any other tool to find out how the nms was changed
echo basalt
Just convert to nms mappings and use screamingsandals to figure out what goes where
regal scaffold
So convert in 1.17.1 to mojang mappings
kind hatch
If you ask me, I'd switch to mojang mappings because it's not obfuscated. As for converting, just go to the version on screaming sandals, select Spigot and type the obfuscated packet name
echo basalt
yes
regal scaffold
Wouldn't it also be better at the same time to use protocolLib?
kind hatch
Depends on how good you are with or without it.
regal scaffold
I can get around with it enough
Just when updating code that I didn't write it's confusing
Alright i kinda get what I need to do now
Last question
I see people use ProtocolLib + packet wrapper
Why
echo basalt
Packet wrapper is just like
basically a multi-platform wrapper where each packet type gets its own class
auto-generated by scanning nms packet classes and just making a version where every single param is wrapped
regal scaffold
So it's usually better to use both together
echo basalt
I'd just use plib
regal scaffold
Oh alright
echo basalt
but if you're clueless about a certain packet, the wrapper might help
regal scaffold
Gotcha
Alright lastly
If I check that, which is the 1.17.1 version of the PacketPlayOutPosition
Where did
Set.of(
PacketPlayOutPosition.EnumPlayerTeleportFlags.a,
PacketPlayOutPosition.EnumPlayerTeleportFlags.b,
PacketPlayOutPosition.EnumPlayerTeleportFlags.c,
PacketPlayOutPosition.EnumPlayerTeleportFlags.d,
PacketPlayOutPosition.EnumPlayerTeleportFlags.e,
)
come from
Like what even is EnumPlayerTeleportFlags
I know this
But I'm trying to figure out how the packet was made in 1.17.1 so then I can translate it
regal scaffold
I'm just confused as in
Where does that even come from
Cause I know in 1.19.4 it no longer exists
echo basalt
In 1.19.4 instead of having flags we just have like 2 or 3 constructors
and variants of the same packet
regal scaffold
I assume you mean that
And that's where the Set comes from
I assume now is when I need to seach for how the packet is made using .vg
upper niche
Is there a method that can calculate the damage on an entity given a certain ItemStack? I can't use attack because it's not a main hand item
vocal cloud
You can pull the damage attribute I think? If it doesn't have one it's 0.5 by default isn't it?
young knoll
If it doesnât have a damage attribute it may have default attributes
If it doesnât have either then the default is 1 damage (0.5 hearts)
But you also have to consider strength buffs, enchantments, etc
fierce prawn
error: cannot find symbol
meta.spigot().setUnbreakable(true);
^
symbol: method spigot()
location: variable meta of type ItemMeta
anyone able to help?
vocal cloud
?paste full error with code please
undone axleBOT
vocal cloud
Oh wait is this on compile? What are you using as a package manager?
fierce prawn
gradle
vocal cloud
can't help there
fierce prawn
Its undifed but you cant define ti lol
quaint mantle
Is there any way to calculate moon's phase / current location?
heady wasp
I'm trying to store some data in a Mongo Database. I can store Strings but I can't get doubles, ints, etc to load.
(when i try to join i get that error)
here's the full class
desert loom
I'm trying to store some data in a Mongo Database. I can store Strings but I can...
I haven't used mongo before but I think your issue is that prestige doesn't exist in the database for that player.
getDouble returns a Double instance and when you assign a Double instance to a primitive it unboxes itself but because the instance is null an npe happens
quaint mantle
Hey, I need help! I have a Crystal PvP arena in my SMP and basically, it allows explosions and I'm wondering if there are any plugins that can reset the arena!
Please @ me if you have a response!
jagged bobcat
I can't find way to detect player jump is there no way to see if player is jumping? Do I need to make my own detectors?
I've google and people in the past have made their own detectors
jagged monolith
I can't find way to detect player jump is there no way to see if player is jumpi...
Something like
if ( player.getVelocity().getY() >= 0 && !player.isOnGround() ) {
// Code here
}
Would need to check if player is on ladders, slabs and such
Creating my own event for it and checker so I can just use event for it
agile anvil
Creating my own event for it and checker so I can just use event for it
Why would you like to create an event?
jagged bobcat
PlayerJumpEvent. I can make my stuff faster with it
agile anvil
Yeah or just directly call your code when you detect a Jump, instead of launching a bukkit event which is way longer
it takes 30ms to launch an event iirc (at least few years back then)
jagged bobcat
I'll test how long it takes
agile anvil
I'll test how long it takes
Don't hesitate to tell me the answer once you've tested
timber mural
I need help with my code, so this is my current one, what it does it it spawns mobs in empty spaces, but it does it in every block that is air (so if the space is 2x2 it spawns 4 mobs), i want it to spawn only one mob per empty space but i don't know what i should do
private List<Block> getEmptySpacesInRadius(Block centerBlock, int radius, int emptySpaceSize) {
List<Block> emptySpaces = new ArrayList<>();
for (int x = centerBlock.getX() - radius; x <= centerBlock.getX() + radius; x++) {
for (int y = centerBlock.getY() - radius; y <= centerBlock.getY() + radius; y++) {
for (int z = centerBlock.getZ() - radius; z <= centerBlock.getZ() + radius; z++) {
Block currentBlock = centerBlock.getWorld().getBlockAt(x, y, z);
if (currentBlock.getType() == Material.AIR) {
boolean isSurrounded = true;
for (int dx = -emptySpaceSize; dx <= emptySpaceSize; dx++) {
for (int dy = -emptySpaceSize; dy <= emptySpaceSize; dy++) {
for (int dz = -emptySpaceSize; dz <= emptySpaceSize; dz++) {
Block surroundingBlock = centerBlock.getWorld().getBlockAt(x + dx, y + dy, z + dz);
if (surroundingBlock.getType() != Material.AIR) {
isSurrounded = true;
break;
}
}
if (!isSurrounded) {
break;
}
}
if (!isSurrounded) {
break;
}
}
if (isSurrounded) {
emptySpaces.add(currentBlock);
}
}
}
}
}
return emptySpaces;
}
i just need a suggestion how i would do it
agile anvil
Mark each block where you spawn a mob, and when going to a new block, check if the block isn't near a marked block
Then you can fix a minimum radius for instance, and a probability to it
You can also work with a radius in only some planes
See that as a distance
Then, if you need 1 and only 1 mob in every walled area (and that they could be of any size), you'll probably have to identify them
Idea: use pathfinding (such as A*) to see if there is a way between them, if not, it's a new space
jagged bobcat
would like if my event would fire
This is using nano time with simple event
Start End Diff
[10:45:01] [Server thread/INFO]: [AstrolPr] 837583716029300 | 837583716061900 | 32600
It's really fast lmao
jagged bobcat
Using milliseconds
Start End Diff
[10:46:13] [Server thread/INFO]: [AstrolPr] 1683359173625 | 1683359173625 | 0
Iâve got some proof of concept in my head to make players one block tall without a client side mod
- Force player into crawl mode
- Give player big speed boost to counteract crawl speed
- Make player invisible and disguise as baby villager with players head instead
Do yâall think this would actually work
agile anvil
Yeh it's like 0.03ms
agile anvil
Iâve got some proof of concept in my head to make players one block tall without...
I don't know how is the crawl moves different from the normal ones, but you should give it a try!
jagged bobcat
On different classes
start end diff
[AstrolPr] 837789279700400 | 837789279722500 | 22100
already tried x+2 and z+2
tender shard
is it required to have ondisable?
yes
but
it's already declared in JavaPlugin
so you don't need one yourself
charred blaze
okay
tardy delta
I need help with my code, so this is my current one, what it does it it spawns m...
đ
eternal oxide
If I were him I'd just set a minimum spawn distance
He's never going to get a mob in every single cave
and caves connect
tardy delta
atleast use continue
tender shard
and caves connect
true, I met my last bf in a cave
tender shard
no, Leon
what's wrong with my code
@Override
public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
try {
Warp warp = warps.get(args[0]); // Might cause ArrayIndexOutOfBoundsException
Location location = warp.getLocation(); // Might cause NullPointerException
((Player)sender).teleport(location); // Might cause ClassCastException
return true;
} catch (NullPointerException exception) {
sender.sendMessage("The specified warp does not exist.");
return true;
} catch (ClassCastException exception) {
sender.sendMessage("This command is only available for players.");
return true;
} catch (ArrayIndexOutOfBoundsException exception) {
sender.sendMessage("Please specify a warp.");
return true;
}
}
wet breach
*what's wrong with my code*
```java
@Override
public boolean onCommand(C...
you could just use a single multi-catch
tender shard
duuude
1st that wouldn'T allow proper error messages
2nd try/catch for control flow is baaaad
wet breach
1st that wouldn'T allow proper error messages
2nd try/catch for control flow is ...
it does allow for proper error messages
you just have to check which exception it is
tender shard
but then it's the same thing, just in worse
eternal oxide
more work to do in a multi
tender shard
I mean, the current code already is a joke lol
wet breach
lol
wet breach
more work to do in a multi
I am not sure if it would be more work, but it would just be contained in a single block, instead of having multiple
tender shard
nothing wrong with it đ
dude, send me this smiley again, and I'll be upset
tender shard
I am not sure if it would be more work, but it would just be contained in a sing...
but one block per "situation" makes much more sense
eternal oxide
ah I see your error, you used separate return true. you could have done a single
tender shard
ok that is true
wet breach
but one block per "situation" makes much more sense
if that is how you want it organized sure
tender shard
no, I don't lol
it should actually look löike this
@Override
public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
if (!(sender instanceof Player)) {
sender.sendMessage("This command is only available for players.");
return true;
}
if (args.length == 0) {
sender.sendMessage("Please specify a warp.");
return true;
}
Warp warp = warps.get(args[0]);
if (warp == null) {
sender.sendMessage("The specified warp does not exist.");
return true;
}
((Player) sender).teleport(warp.getLocation());
return true;
}
I like the first one đ
tender shard
no D:
eternal oxide
ok second one is 12 lines, first one is 13 so second must be better
fix those returns though and first winsa
tardy delta
so much boilerplate code
opal juniper
mY CoMmAnD FrAMEwoRk sO mUcH beTTEr!!!
pseudo hazel
mine looks just like this
and I can work with it so its good
some things dont require insane rewrites to function
tardy delta
does it use functional interfaces?
tender shard
mY CoMmAnD FrAMEwoRk sO mUcH beTTEr!!!
ACF >
tardy delta
ah turns out the moment you connect windows enterprise to the internet with a expired license, it shuts down
wet breach
ah turns out the moment you connect windows enterprise to the internet with a ex...
you have to stop it from phoning home
tender shard
you have to stop it from phoning home
or buy a license
wet breach
or buy a license
if you can afford it, its a yearly license
tender shard
or just use debian :3
wet breach
depends on what you want to do
you can use linux in combination with enterprise
which is actually common to do
but linux can't control windows desktops so you need enterprise for that
tender shard
idk I dislike windows from the soul of my... erm... stomach
wet breach
where linux comes in handy is for handling the network booting stuff and holding the images
it does it much better then enterprise does and is easier to setup with linux
wet breach
its basically both
tender shard
hm ok
wet breach
but its purpose is to handle the group policy and settings of the desktops in the network
basically its the domain controller
tender shard
like LDAP
wet breach
yes similar in a way
wet breach
lol
jagged bobcat
I can't find way to detect player jump is there no way to see if player is jumpi...
Did it
package com.qntcore.minecraft_server.eventsextendedapi.events.movement;
import org.bukkit.Location;
import org.bukkit.entity.Player;
import org.bukkit.event.HandlerList;
import org.bukkit.event.player.PlayerMoveEvent;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.Objects;
/**
* Event used for detecting when player jumps.
* This is not triggered using climbing ladders
* This is not triggered using potion effects (except jump boost)
* @author antritus
* @since 06/07/2023
*/
public class PlayerJumpEvent extends PlayerMoveEvent {
private static final HandlerList HANDLERS = new HandlerList();
public PlayerJumpEvent(@NotNull Player player, @NotNull Location from, @NotNull Location to) {
super(player, from, to);
}
public static @NotNull HandlerList getHandlerList() {
return HANDLERS;
}
@Override
public @NotNull HandlerList getHandlers() {
return HANDLERS;
}
@NotNull
@Override
public Location getTo() {
return Objects.requireNonNull(super.getTo());
}
}
Fixing problems if you encounter em (If you test it ever)
wet breach
Did it
```java
package com.qntcore.minecraft_server.eventsextendedapi.events.mov...
interesting that you allow the to location to be null
wet breach
at minimum, the to location should be the same as the from
in this way, it should never be null otherwise it would be interesting to see what happens if a null was in there lol
jagged bobcat
Did it
```java
package com.qntcore.minecraft_server.eventsextendedapi.events.mov...
Fixed "to" location is null it doesn't continue.
Fixed "to" location being nullable to notnull
https://paste.md-5.net/qewohuqufe.cs
undone axleBOT
tardy delta
why not just check player move event y change
tender shard
or use jefflib's PlayerJumpEvent: https://github.com/JEFF-Media-GbR/JeffLib/blob/master/core/src/main/java/com/jeff_media/jefflib/events/PlayerJumpEvent.java
paper's listener is in the paper-hacks module
eternal oxide
or watch the jump statistic
tender shard
iirc there's an issue with that
eternal oxide
you can set the y velocity to 0 to cancel jumps in teh statisitic increase event
tender shard
I used that earlier but there was some issue with it, which I cannot recall rn
wet breach
yeah it isn't quite accurate
it will consider some things as jumps when they really are not
tender shard
oh wait, I DO use the statistics for that event
eternal oxide
If MC considers it a jump is it not?
tender shard
yeah probably
wet breach
not always
but for the most part yeah
so it should be fine to use it as long as you catch edge cases
jagged bobcat
Changed to paste.md-5
Listening to jump statistics would have been easier
oh well
tender shard
or use jefflib's PlayerJumpEvent: https://github.com/JEFF-Media-GbR/JeffLib/blob...
why don't you just do it like this
jagged bobcat
I saw it
heady spruce
Does scheduleSyncDelayedTask only get executed once?
eternal oxide
yes
heady spruce
Tzhanks
tender shard
only "repeating" tasks are run more than once
heady spruce
Okay tsym
young knoll
Sadly jumping is impossible to detect with 100% accuracy since itâs client side
tender shard
Yeah people can always fake their movement
But i mean, after all its mc and not counterstrike
noble crown
Hi, how can I set item's display name to basecomponent?
tender shard
Hi, how can I set item's display name to basecomponent?
You canât
Display names are just text
They dont have any âhover eventâ etc features
noble crown
Yes, but default item's display name is a translatable component
So there should be a way to change it
rotund ravine
Probably through the spigot interface
tender shard
Yes, but default item's display name is a translatable component
No, thats just whatâs being used when display name is not present
Iirc
I might be wrong
noble crown
Probably through the spigot interface
There's no spigot interface in itemmeta class
noble crown
No, thats just whatâs being used when display name is not present
Maybe, but I still can set item's display name to a component
undone axleBOT
rotund ravine
Guess go say hi to paper
noble crown
Maybe, but I still can set item's display name to a component
E.g. using commands
I know that paper has api for this
tender shard
Guess go say hi to paper
I doubt the client will translate components in the display name of items
If it works though, @worldly ingot should PR it to spigot:p
noble crown
I know that paper has api for this
But I'm modifying a paid plugin that is on spigotmc, so it needs to support spigot ;/
tender shard
Yeah but you could also just say âsomeâ features are paper only
It doesnt have to support spigot 100%, its fine to add paper-only features
But as said, i doubt itll work in paper
noble crown
Okay, so for now, I'll make it paper only
noble crown
I doubt the client will translate components in the display name of items
I'll check if it works
It works
noble crown
command
/give @p diamond_sword{display:{Name:'{"translate":"block.minecraft.diamond_block"}'}} 1
exotic zinc
lol
rotund ravine
Paper allows components in names and lore.
exotic zinc
ok
rotund ravine
Thought there was a spigot interface đ„Č
noble crown
Paper allows components in names and lore.
Spigot should too
rotund ravine
It probably will
eternal oxide
have you tried to see if it will translate json?
It won;t in titles
but perhaps in names?
rotund ravine
@worldly ingot Didnât you say a bit ago youâd pr it?
tender shard
doubt thats going to happen
Someone would have to PR it
@worldly ingot translatable components for display name when?
eternal night
tardy delta
hmm isnt it useless to store both a timestamp and a date if the date of the timestamp is the same as the date (sounds weird lol)
date and time in dutch btw
rotund ravine
hmm isnt it useless to store both a timestamp and a date if the date of the time...
True. Might be easier to get date on demand without converting
tardy delta
dunno what my databases teacher was on
wet breach
Sadly jumping is impossible to detect with 100% accuracy since itâs client side
sadly
but 99% is still pretty good though
tardy delta
True. Might be easier to get date on demand without converting
lets just hold a timestamptz instead
cinder abyss
Hello, how can I check if a player fall in water ?
eternal oxide
check the block at hsi feet is water
cinder abyss
check the block at hsi feet is water
this will always check water
eternal oxide
only if he is stood in water
wet breach
lets just hold a timestamptz instead
if you have a timestamp, then you have the date
besides, it would be better having the timestamp anyways because then you can convert to whatever calendar you want to use
if that is even necessary
tardy delta
not really, its just a college assignment where i have to implement a database from an erd
wet breach
oh well if its a DB, then just use Timestamp
the DB should be able to obtain a date automatically using native methods
so don't even really need to create conversion code yourself đ
tardy delta
hmm lets not worry about timezones then
wet breach
is it necessary to worry about timezones?
as long as you base the time off a timezone like GMT, you can factor timezones in later
might be better to use UTC
twilit roost
im trying to optimize my plugin (minigame)
which makes new void world for instance
I tried unloading all worlds and loading them only on demand, but this resulted in Loading terrain when player tries to access them, even tho I loaded that world before hand.
any ideas why it occurs?
my load world:
https://paste.md-5.net/bopotahuce.java
tardy delta
is it necessary to worry about timezones?
probably not
eternal oxide
no point in using a scheduler. It still runs on the main thread
you could also force load the spawn chunk after the world is loaded
twilit roost
no point in using a scheduler. It still runs on the main thread
im executing that loadworld in async method
but players are getting joined only after load
twilit roost
not load world
but from where I execute it
tardy delta
hell ye manually resetting sequences in postgres in fun
wdym not the class itself
isnt the value of the entry the class you want
you need the EpicItemHandler and not the class you mean?
are you looking for a functional interface?
.class yes
you want to get an instance of a PoisonHandler?
and you also need the class?
remote swallow
why would you need the class, just use an instance
tardy delta
why dont you store an instance then, look it up and call getClass on it
remote swallow
PoisonHandler
tardy delta
? extends EpicItemHandler
remote swallow
im guessing thats an interfact or an abstract class
tardy delta
Map<String, EpicItemHandler>
tardy delta
are we thinking about a Map<String, Supplier<EpicItemHandler>>
remote swallow
okay, so have an abstract class that is extended on all classes that have enchants then you store the data in the abstract class
issue?
tardy delta
meaning you can put whatever instance that extends epicitemhandler in there
yes
you can call map.put("poison", new PoisonHandler())
remote swallow
^^
tardy delta
well why are you working with entries and not Map#get
remote swallow
define the methods in the abstract class for them to be overriden in the class and your done
twilit roost
you could also force load the spawn chunk after the world is loaded
didn't help
remote swallow
map#get needs a key
tardy delta
it checks the string
or do you need a map with a class as key?
well im still wondering what you ned the class for, isnt an instance enough
remote swallow
so Map<String, AbstractClass>
tardy delta
you can always call getClass() on the instance
hazy parrot
So what is problem with string as key and abstract class as an value?
remote swallow
okay one minute
tardy delta
Map<String, EpicItemHandler> map = [...];
map.put("poison", new PoisonHandler());
map.get("poison") /* returns some kind of EpicItemHandler */ .handle(player);```does your map stores classes as keys
hazy parrot
Get requires whatever is first value inside of <>
tardy delta
remote swallow
public abstract class MyAbstractClass {
final String infoExample;
public MyAbstractClass(String info) {
this.infoExample = info;
}
public abstract String getData();
}
public class Manager {
private final Map<String, MyAbstractClass> map = new HashMap<>();
public MyAbstractClass getInstance(String name) {
return map.get(name);
}
}
public class ExampleAbstractUsage extends MyAbstractClass {
public ExampleAbstractUsage(String firstInfo) {
super(firstInfo);
}
@Override
public String getData() {
return infoExample.toUpperCase();
}
}
records :)
wait no
stupid java with their "records cannot extend classes" policy
atleast give us record classes then
quiet ice
Well records are meant to have a special memory layout
tardy delta
Well records are meant to have a special memory layout
in the sense that they are readonly and thereby can be optimized?
quiet ice
I think it was regarding their hashcode or something
tardy delta
im thinking too much in c++ ways lol
quiet ice
The fields can be written to if that is your question
I think idk
I don't use records that often anymore
tardy delta
i just use them for avoiding the boilerplate code
quiet ice
Unfortunately Java 9+ ended up proving itself to be unviable with what I mainly do, so there is rarely a circumstance where I can even use records.
quiet ice
Well the JLS doesn't allow that since Java 1.7 (or something along the lines thereof)
The JVMS does allow that though
tardy delta
jvms = jvm?
glossy venture
anyone know why gradle is building fucking .jar.jar files? its fucking with my maven publications
quiet ice
jvms = jvm?
JVMS = Java virtual machine specification - i.e. the class file format
tardy delta
ah ye it allows some things that the compiler doesnt đ„Č
quiet ice
anyone know why gradle is building fucking `.jar.jar` files? its fucking with my...
What is your build.gradle?
tardy delta
ah thats what they mean with those object headers
also contains identity hashcode (https://www.beyondjava.net/records-vs-value-types#primitive_classes)
quiet ice
Primitive classes != Records
glossy venture
What is your build.gradle?
uh its kinda complex im including a general purpose build script i wrote so a lot of shit is provided by that
plugins {
// java
id 'java'
id 'java-library'
// package publishing
id 'maven-publish'
id 'signing'
// for shading in dependencies
id "com.github.johnrengelman.shadow" version "7.1.2"
}
version '1.0.4'
ext {
hasPaper = false
hasTesting = true
desc = "General purpose static utility library"
}
apply from: '../buildsrc/module.gradle', to: project
dependencies {
}
``` this is the build.gradle
<https://github.com/cold-src/buildsrc/blob/master/module.gradle> this is the module.gradle includedif I had to guess setOutputFile should not include the file extension
glossy venture
ah ill try
quiet ice
Ah no - https://github.com/cold-src/buildsrc/blob/master/module.gradle#L383 is the issue
glossy venture
Ah no - <https://github.com/cold-src/buildsrc/blob/master/module.gradle#L383> is...
oh that the shadowjar doesnt have a classifier
oh nvm
the filename includes .jar ofc
shit
quiet ice
Yep
cinder abyss
How can I sink players into the ground like quicksand?
tardy delta
smth like this? #help-development message
glossy venture
why cant i cast this bruh fucking generics stop crying
cinder abyss
smth like this? https://discord.com/channels/690411863766466590/7418758632718991...
perfect !
I'll place a cobweb inside
tardy delta
its probably with packets, i dunno the context in which that video was sent i only saw it
ivory sleet
why cant i cast this bruh fucking generics stop crying
They are different type perspectively
its like List<T> vs List<Object>
exotic zinc
why cant i cast this bruh fucking generics stop crying
cast it to ReceivedPacket<?>?
ivory sleet
but why is that uncastable
Worst case
glossy venture
nah
glossy venture
mind that its Callback<ReceivedPacket> -> Callback<ReceivedPacket<T>> so its like deeper
glossy venture
(Callback<ReceivedPacket<T>>) (Object) c
oh yeah
exotic zinc
(Callback<ReceivedPacket<T>>) (Object) c
holy moly what is this
ivory sleet
Since java type erasure đ€Ą
glossy venture
lol
works
if type erasure wasnt a thing and generics was enforced at runtime id quit java rn
quiet ice
Casting to object and back is quite frequent
ivory sleet
Well its not that frequent to do explicitly, but ye it happens alot when compiling etc
ocean hollow
Guys, hello everyone. I have 2 plugins and they are in conflict. If you hover over a block, a title should appear. But after adding the plugin - it stops working.
quiet ice
Well its not that frequent to do explicitly, but ye it happens alot when compili...
Well I've done it frequently enough that I won't bat an eye if I do it
ivory sleet
Well I guess if youâre on a bytecode level like with mixins or similar stuff it may be more common to work with
But most applications should not have to deal with it on an infrastructure level
tardy delta
Guys, hello everyone. I have 2 plugins and they are in conflict. If you hover ov...
that looks like a lot of map lookups
but "it stops", are you using a scheduler or an event or smth?
bruh this a thing in sql too
cinder abyss
Hello, how can I make a block invisible for a player ?
chrome beacon
player#sendBlockChange
cinder abyss
player#sendBlockChange
I've got this but this doesn't change the block :java event.getPlayer().sendBlockChange(loc, Material.BARRIER.createBlockData());
cinder abyss
Does the code run
yes
cinder abyss
When are you calling it
@EventHandler
public void onPlace(BlockPlaceEvent event) {
Material material = event.getItemInHand().getType();
Block block = event.getBlock();
Location loc = block.getLocation();
block.setType(Material.COBWEB);
block.getWorld().spawn(loc, BlockDisplay.class, b -> {
b.setBlock(material.createBlockData());
});
event.getPlayer().sendBlockChange(loc, Material.BARRIER.createBlockData());
}```all is working except event.getPlayer().sendBlockChange(loc, Material.BARRIER.createBlockData());
chrome beacon
Delay by 1 tick
cinder abyss
Delay by 1 tick
okay thanks
ocean hollow
but "it stops", are you using a scheduler or an event or smth?
it always works
scheduler
cinder abyss
Delay by 1 tick
I made thisjava @EventHandler public void onPlace(BlockPlaceEvent event) { Material material = event.getItemInHand().getType(); Block block = event.getBlock(); Location loc = block.getLocation(); block.setType(Material.COBWEB); block.getWorld().spawn(loc, BlockDisplay.class, b -> { b.setBlock(material.createBlockData()); }); new BukkitRunnable() { @Override public void run() { event.getPlayer().sendBlockChange(loc, Material.BARRIER.createBlockData()); } }.runTask(this); }And it's the same result
chrome beacon
Are you sure you're not seeing the block display
cinder abyss
Are you sure you're not seeing the block display
I made 20L delay
and now, it replaces the block
cinder abyss
and now, it replaces the block
@chrome beacon
glossy venture
you can use reflections library by idk their name
chrome beacon
Yeah you can use reflection
cinder abyss
this is no longer a cobweb block
cinder abyss
So it's working
I want it to be a cobweb
chrome beacon
I want it to be a cobweb
Then don't make it a barrier
cinder abyss
Then don't make it a barrier
normally, it fakes
chrome beacon
The client controls the movement
glossy venture
probably need to open the JAR file and list all files under the directory
otherwise it only works for loaded classes i think
chrome beacon
If it doesn't know there's a cobweb there it won't be able to walk in to it
cinder abyss
The client controls the movement
so, how can I make the block invisible ?
chrome beacon
You can't
cinder abyss
player#sendBlockChange
okay thanks...
chrome beacon
Get a display entity that covers the cobweb I guess
heady spruce
does anybody knows why this wont stop obsidian from generating?
also tried:
- BlockFormEvent
- BlockPhysicsEvent
@EventHandler
public void onBlockFromTo(BlockFromToEvent event) {
//blocks.add(event.getBlock());
//startLiquidDelete(event.getBlock());
Block block = event.getBlock();
if (block.getType() == Material.STATIONARY_LAVA || block.getType() == Material.LAVA) {
Block toBlock = event.getToBlock();
if (toBlock.getType() == Material.WATER || toBlock.getType() == Material.STATIONARY_WATER) {
event.setCancelled(true);
}
}
}```already what I made
but inside it's a cobweb
chrome beacon
No not right now
glossy venture
you cant do it with reflection
the jvm doesnt organize classes under packages
i think
you can only loop through all loaded classes
tardy delta
damn chatgpt is very original
glossy venture
or open the JAR file and list the class files
not all classes are loaded
only when u use them they get loaded from the jar
tardy delta
just dont
heady spruce
Yea, tried that but obsidian and cobblestone generation doesnt seem to get catched by this
(I mean by the event)
Tried that in GrowEvent too, so idk im clueless tbh
chrome beacon
does anybody knows why this wont stop obsidian from generating?
also tried:
- Bl...
It's the BlockFormEvent. Show your code for that
heady spruce
oh bruh
give me a sec
no its FromTo
nvm
FormEvent didnt work too for me and it didnt catch that too
maybe could be that im coding in 1.8.8 and it wasnt implemented there or smth
chrome beacon
1.8 đ
heady spruce
1.8 pvp is better change my mind
chrome beacon
Make sure your fork of fork of fork of fork of fork of fork of fork of fork isn't breaking anything
heady spruce
i understand that people like the new one
but i like 1.8 more so i code things i like there yk
ivory sleet
1.8 game features might be nice, but the code base is so dog water
heady spruce
1.8 game features might be nice, but the code base is so dog water
that is true
worn tundra
what data u want from it
heady spruce
and if someone recommends me to remove cooldown im going to be mad bc it doesnt feel the ssame even without the cooldown
glossy venture
try {
final String pk = "my.package";
List<Class<?>> classes = new ArrayList<>();
Class<?> kl = getClass();
CodeSource source = kl.getProtectionDomain().getCodeSource();
URL jar = source.getLocation();
File jarFile = new File(jar.getFile());
JarInputStream stream = new JarInputStream(new FileInputStream(jarFile));
ZipEntry entry;
while ((entry = stream.getNextEntry()) != null) {
if (entry.getName().startsWith(pk) && entry.getName().endsWith(".class")) {
String className = entry.getName()
.replace(".class", "")
.replace("/", ".");
classes.add(Class.forName(className));
}
stream.closeEntry();
}
} catch (Exception e) {
e.printStackTrace();
}
``` this is like ultra stupid but i think smth like this might workyes this
so i see in the docs that BlockFormEvent doesnt cover obsidian and cobblestone generation, so anybody have some other recommandations (1.8.8 it does cover it in the newer versions)
ivory sleet
```java
try {
final String pk = "my.package";
List<Class<?>> classes = n...
try with resources đ
chrome beacon
so i see in the docs that BlockFormEvent doesnt cover obsidian and cobblestone g...
Examples:
Snow forming due to a snow storm. Ice forming in a snowy Biome like Taiga or Tundra. **Obsidian / Cobblestone forming due to contact with water. **
ivory sleet
Java 7?
glossy venture
lmao bro u using java 7?
ivory sleet
Benchmarks?
heady spruce
> Examples:
>
> Snow forming due to a snow storm.
> Ice forming in a s...
1.8.8 docs doesnt say that it covers that
heady spruce
and as I said, i code in 1.8.8
glossy venture
what server version are you developing for
heady spruce
i know it does cover it in the newer versions
ivory sleet
1.8 uses an older netty version and older lwgjl @quaint mantle which both are less performant
heady spruce
I could try that
ivory sleet
Do you have benchmarks?
Sure
Yes
A lot of bugs
đ
Na thatâs beneath their dignity
Itâs improved significantly tho
Idk
Its pretty decent most of the times
mye perhaps
I mean
Thatâs what paper was doing in 1.8
Poeple dont fork to do nothing
^
Like sometimes fixing bug A introduces a new bug B
Generally yes
Always have zero day vulnerabilities
quiet ice
Because they fix those issues in the core server implementation
reef forge
How can I give a player a custom permission?
quiet ice
Also FYI, anything below 1.19.4 pretty much has 0 support from spigot, paper and co
ivory sleet
True
reef forge
How can I give a player a custom permission?
?
quiet ice
They won't fix bugs retroactively
glossy venture
@quaint mantle
this works if ur loading from a jar file
try {
final String pk = "the.package";
List<Class<?>> classes = new ArrayList<>();
Class<?> kl = getClass();
CodeSource source = kl.getProtectionDomain().getCodeSource();
URL jar = source.getLocation();
File jarFile = new File(jar.getFile());
JarInputStream stream = new JarInputStream(new FileInputStream(jarFile));
ZipEntry entry;
while ((entry = stream.getNextEntry()) != null) {
if (entry.getName().startsWith(pk) && entry.getName().endsWith(".class")) {
String className = entry.getName()
.replace(".class", "")
.replace("/", ".");
classes.add(Class.forName(className));
}
stream.closeEntry();
}
System.out.println(classes);
} catch (Exception e) {
e.printStackTrace();
}
Can you explain in detail
tardy delta
try with resources đł
quiet ice
try with resources đł
Also that while loop could be a for loop
quiet ice
Also that while loop could be a for loop
i.e. for (JarEntry entry = stream.getNextEntry(); entry != null; entry = stream.getNextEntry())
glossy venture
nah i dont think so
tardy delta
hmm i see so much bad code on daily base it doesnt even surprise me đ€Ą
glossy venture
because the condition is evaluated after the first iteration right
tardy delta
before?
glossy venture
i.e. `for (JarEntry entry = stream.getNextEntry(); entry != null; entry = stream...
quiet ice
because the condition is evaluated after the first iteration right
no, it's always executed
quiet ice
That is why you initialize entry once you define it
quiet ice
stream.getNextEntry()
tardy delta
stream.getNextEntry()?
glossy venture
oh
tardy delta
works like an iterator
glossy venture
while looks cleaner tho
quiet ice
yea ... and then you proceed to do an assignment within a boolean expression
exotic zinc
what the fuck is this?
quiet ice
what the fuck is this?
A for loop?
exotic zinc
there is a reason while loops exist
glossy venture
better than writing entry = stream.getNextEntry twice
tardy delta
thats 2 extra lines with a while
quiet ice
I generally try to avoid (X = Z)
exotic zinc
thats 2 extra lines with a while
but it doesn't look scuffed
glossy venture
yeah
quiet ice
at that point you can just use while loops for everything
tardy delta
assembly looks scuffed too, will you also tell them?
glossy venture
assembly looks scuffed too, will you also tell them?
yeah
quiet ice
Especially because you define your var outside the loop
Which is honestly a no-go since it won't be used after the loop
if it were to be used outside the loop it would be okay to have it be a while loop, but not like this
exotic zinc
aha they used while loop before
glossy venture
wait does zip store entries like this
dir a | file a/b | file a/c | file a/d | close dir a
because then once youve found the package you can just break
instead of going throuhh the whle jar
glossy venture
try with resources đ
fuck why didnt i do that initially
quiet ice
wait does zip store entries like this
```
dir a | file a/b | file a/c | file a/d...
no.
unless you have reproducible file order that is - but chances are you do not
quiet ice
java.util.Vector is not thread-safe
Unless you never want to iterate over it as well as adding and removing elements that is
tardy delta
Vector is synchronized. If a thread-safe implementation is not needed, it is recommended to use ArrayList in place of Vector.
javadocs
quiet ice
But chances are you will either iterate, add or remove some element of it
quaint mantle
Vector is thread safe
tardy delta
personally never used that class
quaint mantle
You can sync arraylist too.
quiet ice
It's thread safe, but cannot be read in a concurrent environment
Unless you are very sure that an index exists
rough basin
what should I do to make RPM / rate of fire
tardy delta
wdym with cannot be read concurrently?
quiet ice
If you do something like vector.get(vector.size() - 1); and another thread removes an element after size() but before .get() you have an issue
quiet ice
And the iterator will straight up fail if any concurrent modification is performed
The only real concurrent list impl is CopyOnWriteArrayList
tardy delta
hmm ye copying elements đ„Č
i once had to work with a copyonwrite arrayset and i had to add 1800 elems :(
quiet ice
i once had to work with a copyonwrite arrayset and i had to add 1800 elems :(
I think you do .addAll in that case
tardy delta
i measured it and addAll was even slower due to the toArray call đ
decided to not care about it
quiet ice
If you know the size of the array at init time you can use AtomicReferenceArray
tardy delta
never heard of that tbh
quiet ice
Or just straight up use arrays but beware of store fences and other bullshit that arises from highly concurrent environments
tardy delta
just smth like an atomicref<T>[]?
wet breach
unless you have reproducible file order that is - but chances are you do not
if the compression method for the zip archive is store, which is no compression, then all you need is to pull the central directory file to know where all the files are at in the zip and just find the one you are wanting
quiet ice
just smth like an atomicref<T>[]?
More like atomicref<T[]>
tardy delta
does that guarantee threadsafe writes?
wet breach
jar files don't have compression at least not that I recall
quiet ice
does that guarantee threadsafe writes?
Yes. You just only have #set and #get (as well as CAS). #add and #remove does not exist
tardy delta
ahh hmm i saw minestom doing smth similar
cinder abyss
Hello, how can I make an entity emit light ?
tardy delta
but i thought it was a volatile write with a varhandle which backs an array
heady spruce
im ooc mad
quiet ice
but i thought it was a volatile write with a varhandle which backs an array
that is basically it to be honest
tardy delta
ah private static final VarHandle ITEM_UPDATER = MethodHandles.arrayElementVarHandle(ItemStack[].class);
setting an element seems to use a synchronized block đ
quiet ice
most likely due to indexing constraints
cinder abyss
Hello, how can I make a block emit light ?
quiet ice
If you use an AtomicInteger and use CAS for incrementing/decrementing that integer you can avoid the sychronized block
tardy delta
ye
quiet ice
However that only allows appending after the last element or removing the last element.
Having a truely thread-safe and fully implemented list is impossible without the usage of synchronized
tardy delta
wait and notify?
quiet ice
sounds unsafe
tardy delta
that does use the waitset instead of the lockset but has the same principle ig
i wouldnt really know what to do with the interruptedexception that it can throw but whatever
gleaming grove
What can I do to have unique hashCode or some kind of ID for every new instance of object?
tardy delta
let it use some combination of the fields hashcodes
gleaming grove
In case all fields have null value, the hashcode will be excatly the same, right?
quiet ice
int hashcode() {
return [...] ^ System.identitiyHashcode(this);
}
Thatâs not how hashcode is supposed to work for the record
tardy delta
System.identitiyHashcode(this) will be the same for every instance right?
quiet ice
System.identitiyHashcode(this) will be the same for every instance right?
Different for every instance
wet breach
Thatâs not how hashcode is supposed to work for the record
but you can make it work that way if you override it
tardy delta
ahh
quiet ice
But uh, at that point you wouldn't want to override the hashcode method
Like, XOR'ing the identity hashcode with what is basically just a salt makes no sense
slim wigeon
quiet ice
hashcode is basically some number
What it means is irrelevant in most cases. It should be the same number for equal objects though
tardy delta
ah now i understand why youre using System.identitiyHashcode(this)
gleaming grove
```java
int hashcode() {
return [...] ^ System.identitiyHashcode(this);
}
```
thanks, this seems to works
quiet ice
however it's usage is noteworthy: It is used to improve the performance of maps such as the HashMap or other various Hashtable-derived structures
quiet ice
thanks, this seems to works
Why do you need that though?
wet breach
What it means is irrelevant in most cases. It should be the same number for equa...
its mostly used for sets and hashmap stuff
its how the buckets are formed
glossy venture
What can I do to have unique hashCode or some kind of ID for every new instance ...
System.identityHashCode returns basically the object ID i think
im pretty sure its unique to every instance tho
quiet ice
Not really unique