good morning tho
#help-development
young knoll
You can also just do 1d and 50d
fluid river
@echo basalt you banned me for nothing, undo that
silk mirage
anyone...
fluid river
what's wrong
molten hearth
well
I'm trying (int) (this.getDynamicStats().getMaxHealth() * ((double) (this.getDynamicStats().getMaxDefense() + 50) / 100));
and its still 100
fluid river
That's my question
nothing is wrong
undone axleBOT
"Does not working" is a useless statement. Please describe what exactly is not working, what you expect it to do, and what actually happens. If you get any console errors, also ?paste the entire stacktrace.
molten hearth
oh I forgot the 1
silk mirage
I'm using java 17 aka version 61
silk mirage
fluid river
one you specify in properties section of pom.xml on both
silk mirage
there
silk mirage
now it says 200 instead of 150
what's up
silk mirage
yeah it's same
molten hearth
?learnmath when
molten hearth
now its 150
๐
return (int) (this.getDynamicStats().getMaxHealth() * (1 + ((double) (this.getDynamicStats().getMaxDefense() / 100f))));
fluid river
i fixed it with telekinesis again
molten hearth
this is my formula
silk mirage
uhh can you check
silk mirage
I don't want to initalize a runtime dependecy management for just 1mb
round finch
How do i implement spigot doc into eclipse?!
Do not tell me to use ij ide <--(i already know this)
crimson terrace
how about intellij
crimson terrace
round finch
you gotta be kidding
crimson terrace
maybe
crimson terrace
I dont know my way around eclipse sadly, otherwise I could help
eternal oxide
Eclipse does it for you
eternal oxide
using Maven?
round finch
round finch
using Maven?
yes
but idk if i trust my ablities in maven
i will post maven file
?paste
undone axleBOT
eternal oxide
round finch
round finch
alright gonna check real quick
molten hearth
so uh I'm new to reflection, how can I cast xyz.invoke as an int?
eternal oxide
ensure the javadoc is ticked in that menu
lost matrix
so uh I'm new to reflection, how can I cast `xyz.invoke` as an int?
You cast it to an int
molten hearth
for (Method m : this.getStats().getClass().getMethods()) {
if (m.getName().startsWith("get") && m.getParameterTypes().length == 0) {
try {
final Object r = m.invoke(this.getStats());
System.out.println((int) r); // I need this to be an int
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
}
}```well unfortunately it doesnt work lmao
eternal oxide
then right click pom -> Maven -> update Project
ensure force update snapshot/releases is ticked
round finch
lost matrix
well unfortunately it doesnt work lmao
What exactly doesnt work?=
molten hearth
Exception in thread "main" java.lang.ClassCastException: class java.lang.Class cannot be cast to class java.lang.Integer (java.lang.Class and java.lang.Integer are in module java.base of loader 'bootstrap')
eternal oxide
my settings
ElgarL: ensure force update snapshot/releases is ticked```Means the object you are trying to cast is of type Class and not int
molten hearth
but how is it of type class when i used Object as the type
lost matrix
For example getClass() from Object
lost matrix
You can check if the return type is int
molten hearth
ohh wait lmao
lost matrix
for(Method method : methods) {
if(method.getReturnType() == int.class && method.getName().startsWith("get")) {
int result = (int) method.invoke(instance);
}
}
I had a method that I forgot existed in the class
lost matrix
Something like this
round finch
```ElgarL: then right click pom -> Maven -> update Project
ElgarL: ensure force ...
didn't do much
eternal oxide
didn't do much
you clicked ok and it shoudl have pulled all javadocs from maven
molten hearth
nein
lost matrix
I edited the method
lost matrix
Please dont tell me that you use reflections on your own classes
molten hearth
yes ๐
i cannot be bothered typing all 20 of them out
im converting the stats into NBT and I'm using reflection to loop and get the values and I'll remove get from the method name and add it as an nbt value
lost matrix
You dont have to if you use a proper design... this sounds like a BIG design issue which you
are hackily trying to "fix".
round finch
you clicked ok and it shoudl have pulled all javadocs from maven
it still won't do
molten hearth
nah impossible
round finch
very cursed
eternal oxide
did you manually add a jar or something?
sterile token
What its better for listening to redis message arrive event, using thread or an executor?
lost matrix
What its better for listening to redis message arrive event, using thread or an ...
executors manage threads. Those two are not interchangeable systems
sterile token
Oh ok
So its would be the same using thread or executor
Because the executor will create a Thread for each process right?
lost matrix
Depends on the thread factory of the executor
round finch
did you manually add a jar or something?
nope, not what i know from looking
on build import
sterile token
Because with a friend we are doing benchmarks and threads makes the plugin to work really slower
eternal oxide
the only reason it would not show the javadocs is if you manually added a jar or messed up your classpath
molten hearth
Please dont tell me that you use reflections on your own classes
public List<NBTCompound> getNBT() {
List<NBTCompound> nbt = new ArrayList<>();
for (Method m : this.getStats().getClass().getMethods()) {
if (m.getName().startsWith("get") && m.getParameterTypes().length == 0) {
try {
final int result = (int) m.invoke(this.getStats());
nbt.add(NBT.Compound(Map.of(m.getName().replace("get", ""), NBT.String(String.valueOf(result)))));
} catch (IllegalAccessException e) {
// do nothing
} catch (InvocationTargetException e) {
// do nothing
} catch (ClassCastException e) {
// do nothing
}
}
}
return nbt;
}``` look at this unprecedented beauty
glossy venture
You dont have to if you use a proper design... this sounds like a BIG design iss...
using reflection is pretty convenient so i wouldnt call it a design issue
otherwise youd have a lot of repeating code
molten hearth
[{"Damage":"260"}, {"GearScore":"712"}, {"Rarity":"4"}, {"Strength":"150"}, {"Health":"0"}, {"Speed":"0"}, {"MiningFortune":"0"}, {"FarmingFortune":"0"}, {"AbilityDamage":"0"}, {"Defense":"0"}, {"PetLuck":"0"}, {"BonusAtkSpeed":"0"}, {"MagicFind":"0"}, {"ForagingFortune":"0"}, {"TrueDefense":"0"}, {"MiningSpeed":"0"}, {"Pristine":"0"}, {"CritChance":"0"}, {"Intelligence":"350"}, {"Ferocity":"30"}, {"CritDamage":"0"}, {"SeaCreatureChance":"0"}]```and this can be used for basically anything
tardy delta
isnt there Map.singleton(K, V)?
molten hearth
seems pretty useful
glossy venture
yeah
lost matrix
using reflection is pretty convenient so i wouldnt call it a design issue
Reflections are used for meta programming. They are horribly slow and they are hacky. This is 100% an issue that should
not be "fixed" with reflections.
tardy delta
me who thought that java internally uses reflections
glossy venture
```json
[{"Damage":"260"}, {"GearScore":"712"}, {"Rarity":"4"}, {"Strength":"150...
though why arent you just putting it in a compound tag instead of an array of compound tags
lost matrix
```java
public List<NBTCompound> getNBT() {
List<NBTCompound> nbt = new ...
//do nothing lol
glossy venture
Reflections are used for meta programming. They are horribly slow and they are h...
how slow are reflections?
tardy delta
how are they slow tho
glossy venture
last time i used them it optimized to ~10 ns per method call i think
molten hearth
//do nothing lol
I mean I have some methods I forgot existed that return not ints but i just pretend they dont exist
glossy venture
using reflection
lost matrix
how slow are reflections?
Not rare to see them take 300ms (6 whole ticks) at times
glossy venture
not for a few calls
lost matrix
*If you use java 8
glossy venture
yeah
glossy venture
on an old vm then
glossy venture
```java
public List<NBTCompound> getNBT() {
List<NBTCompound> nbt = new ...
benchmark it
lost matrix
reflections are absolute garbage if you dont properly cache them
lost matrix
<https://github.com/orbyfied/j8/blob/master/testSrc/src/main/java/net/orbyfied/j...
Are you considering the JIT for those benchmarks?
tardy delta
<https://github.com/orbyfied/j8/blob/master/testSrc/src/main/java/net/orbyfied/j...
jit caches and optimizes method calls lol
mye
might wanna use jmh
glossy venture
Are you considering the JIT for those benchmarks?
well if jit does it here wont it do it in production
lost matrix
no
It may take seconds or it may take hours
Or it wont jit compile ever
All possible
glossy venture
will JIT optimize the actual reflection too
yeah right
until it calls into native or vm code
lost matrix
Yes. It will actually create concrete method calls. They wont be indistinguishable from a normal call then.
*If the JIT think its worth it
glossy venture
you could cache the method handles for a class in a hash map and use those
if youre very concerned about performance
lost matrix
This is what every half decent plugin which is using reflections does.
But in java 18 every method invocation is backed by a methodhandle anyways
sterile token
Method Handle exists on JVM 8
molten hearth
benchmark it
I cannot be bothered implementing that
however
Total execution time: 14ms
glossy venture
for one iteration
glossy venture
for all methods
molten hearth
including me setting to to NBT and stuff or just the reflection
lost matrix
> Total execution time: 14ms
Thats horrible
glossy venture
just the reflection
molten hearth
14ms is great bruh
molten hearth
im a js dev im surprised when my code doesnt take 2000ms
glossy venture
14ms is pretty slow thats ~1/5 of a tick
molten hearth
Total execution time: 0ms
wonderfuil
one sec switching to nano lol
Total execution time: 33100ns
Total execution time: 33500ns
Total execution time: 19200ns
Total execution time: 21600ns
Total execution time: 21900ns
Total execution time: 19000ns
Total execution time: 35400ns
Total execution time: 16300ns
Total execution time: 16900ns
Total execution time: 17600ns
Total execution time: 17000ns
Total execution time: 17000ns
Total execution time: 16700ns
Total execution time: 16800ns
Total execution time: 34500ns
Total execution time: 18300ns
Total execution time: 17900ns
Total execution time: 17300ns
Total execution time: 29100ns
Total execution time: 17600ns
Total execution time: 16400ns
Total execution time: 29800ns```Minecraft has 50ms per tick.
If you have a decent playerbase then 20-30ms are taken up
by mc itself and another 1-3ms by spigot.
Then add 10ms for other plugins and you are left with maybe
15-20ms for your own plugin. If a single method call already eats
75% of your entire CPU time then this is very bad.
molten hearth
its uh
variating
well its fine
this call is only used during startup to create an item
after that I just store it in a hashmap and never really re-create it again
lost matrix
Well on startup time doesnt matter
lost matrix
But using reflections like this is a clear sign of faulty design
molten hearth
idk I dont think design gets much better than this
I have like 20 stats and need to access them somehow
lost matrix
I have like 20 stats and need to access them somehow
Well. Create a stats enum. Then a Map<Stat, Integer>
And getting all stats is as simple as iterating through the enum
for(StatType type : StatType.values()) {
int stat = statMap.get(type);
}
And instead of having one method for every single stat you can
have one method which works for every stat you want:
public int getStat(StatType type) {
return this.statMap.getOrDefault(type, 0);
}
oh yeah that could work too lol
lost matrix
Then you just need to add new entries to your enum and dont have to worry about all the places for your new stat
Very important to respect the DRY principle:
Dont
Repeat
Yourself
If you find yourself copy pasting something or writing something
repeatedly, then its time to stop and think about how to write it more modular.
Will save you literal hours of work
molten hearth
imagine
crimson terrace
the fact that this constructor has like 20 parameters alone is weird, the repeating of getStats just makes it a little worse
fluid river
tho you can send stats to contructor
fluid river
And use reflection
or enum
who knows
need deep understanding of your entire plugin
crimson terrace
ye
untold jewel
Stupid question. I have default values in a config I want to appear if it doesnt contain "path" so I do getConfig().options.copyDefaults(true); but when I reload / restart server it just gives default values again after I changed and saved them
Probably easy solution just havent worked a whole lot with configs
hazy parrot
I want to appear if it doesnt contain "path"
what does this mean
untold jewel
like if someone removes the path so path:
blabla:
blabla:
I want it to set the values agian
just so it cant be empty
eternal oxide
you set the default
eternal oxide
look on stash to see how bukkit does it for their config
untold jewel
But when I change something and restart the server it just sets the defaults agian
again*
eternal oxide
then you are not saving yoru changes
untold jewel
I am
undone axleBOT
untold jewel
Obviously thats why I'm asking forhelp
tardy delta
"ResultOfMethodCallIgnored" iirc
torn shuttle
man as it turns out I have a lot of stalkers on spigot
twin venture
hi , so i have a kit system with permission per kit , so i have a problem if a player have a rank that it depend on another rank , [this 2 rank have diffrent kits] , he will receive both
how would i give him the kit that is the same as his rank
hazy parrot
Here is some list of warnings suppression
molten hearth
alright I refactored half my code to use enums thats a few hundred lines gone
twin venture
hi , so i have a kit system with permission per kit , so i have a problem if a p...
ideas?xd
echo basalt
man as it turns out I have a lot of stalkers on spigot
?
molten hearth
https://hastebin.com/ebocugumag.java this is next aah
molten hearth
man as it turns out I have a lot of stalkers on spigot
dont worry you won't even know im there
torn shuttle
seems like necroposting mr choco lyrics is taking off
torn shuttle
yeah hard to know which part of your extensive stalking activities I was referring to right
echo basalt
I actually had your page open when you sent that message
was checking my notifications lol
torn shuttle
I think my beard game has leveled up
I have reached a new power level
a supersayan +2 if you will
molten hearth
torn shuttle
merlin wishes he had a beard like mine
molten hearth
๐
does HikariPool ever timeout
I can see [Ms-TickScheduler] [15:58:28] (HikariDataSource.getConnection) - INFO - HikariPool-1 - Starting... [Ms-TickScheduler] [15:58:29] (HikariPool.checkFailFast) - INFO - HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@22d59864 from my old logs but now im unable to connect and all I see is [Ms-TickScheduler] [16:05:23] (HikariDataSource.getConnection) - INFO - HikariPool-1 - Starting... so im assuming the db died but doesn't hikari timeout or smth
meh there's hikari.setLoginTimeout(5); I guess that works
twin venture
meh there's `hikari.setLoginTimeout(5);` I guess that works
i have the same problem xd
this is my problem
do you know why this hapening ?
dosen't happend on my test server
twin venture
somewhere the network sucks
that's why?
molten hearth
well something is taking ages to respond (it could be due to a firewall as well)
eternal oxide
this is my problem
is your sql server on the same box?
twin venture
is your sql server on the same box?
no
twin venture
well something is taking ages to respond (it could be due to a firewall as well)
it works , first 5 / 10 minutes
twin venture
and after that this the bug happens .
eternal oxide
are you certain the ports are open>?
twin venture
are you certain the ports are open>?
yes or it will not connect me .
eternal oxide
remote SQL is never a good idea. Too slow
mighty pier
hi , so i have a kit system with permission per kit , so i have a problem if a p...
group.rankname permission probably
twin venture
remote SQL is never a good idea. Too slow
ok so from what he told me the owner , he moved the mysql to the same panel of the minecraft servers
eternal oxide
if you cna connect to the sql its possible you are running out of connections
using batch updates consumes them really fast
fast onyx
Hello! I'm trying to teleport a player to the projectile location on ProjectileHitEvent, however it seems to teleport to the inverse yaw and pitch; how I can rotate the vector 180deg to literally teleport to the opposite position? (Already tried getting the vector and multiplying it for -1 and 2, as i saw on a random forum)
Thanks.
fast onyx
vector.multiply(-1);
well i think i'm doing smth wrong as i've already tried that
fluid river
what exactly is happening?
fast onyx
fluid river
right X Y Z but wrong Yaw Pitch
fast onyx
not "wrong", just that i want to "invert it"
fluid river
tho in projectile hit event shouldn't velocity be 0?
eternal oxide
use getDirection() not velocity
fluid river
try setting player YAW PITCH from projectile.getDirection()
basicallyjava player.getLocation().setDirection(projectile.getLocation().getDirection())
smth like this
?di
undone axleBOT
Guide to dependency injection: https://www.spigotmc.org/wiki/using-dependency-injection/
fluid river
@civic wind
fast onyx
basically```java
player.getLocation().setDirection(projectile.getLocation().getD...
still the same
Vector vector = projectileLocation.getDirection().multiply(-1);
player.getLocation().setDirection(vector);
you don't need to multiply it now tho
fluid river
why don't you just teleport player
directly to projectile location
player.teleport(projectile.getLocation());
fast onyx
tried that before, and the "problem" happens xD
fluid river
that shouldn't affect yaw pitch tho
it just copies YAW and PITCH from projectile direction
@noble lantern what's with this guy's hair
tho arrow might bounce from block
fast onyx
that shouldn't affect yaw pitch tho
so you mean this?
fluid river
ye
fluid river
tho arrow might bounce from block
maybe it's causing error
eternal oxide
player.teleport(projectileLocation.setDirection(projectileLocation.getDirection().multiply(-1)));```unbeatable
fast onyx
```java
player.teleport(projectileLocation.setDirection(projectileLocation.getDi...
i will try, thanks
eternal oxide
you would be better to maintain the players yaw/pitch though
not use the projectiles
projectiles can bounce or hit top of a block etc
fluid river
Why is location so strange tho
setters return Location object
what's this pattern name
looks kinda like builder
append().append().build()
crimson terrace
setters return Location object
you can do .set().set() and have it cleaner
fast onyx
```java
player.teleport(projectileLocation.setDirection(projectileLocation.getDi...
stills the same
crimson terrace
its not a design pattern imo, its a design choice
eternal oxide
then don;t use the projectile direction
fluid river
its not a design pattern imo, its a design choice
maybe
but really looks like copypaste of builder
fast onyx
then don;t use the projectile direction
will try using player's yaw and pitch
crimson terrace
the builder pattern does exist, its probably a variation of it
fluid river
yeah
hazy parrot
looks kinda like builder
It in fact is
fluid river
that's what i think about
hazy parrot
Or fluent interface
eternal oxide
player.teleport(projectileLocation.setDirection(player.getLocation().getDirection()));```well the only problem is that you usually need Location.clone
cuz it's half static half non-static
strange class
Don't like how bukkit made it
the cringest thing is it's basically copying lots of public methods from world
which you anyways pass to constructor
Maybe they wanted to make it fully static but then changed opinion
fast onyx
```java
player.teleport(projectileLocation.setDirection(player.getLocation().get...
i've just fixed it by setting the players's pitch/yaw to the projectileLocation
thanks!
round finch
the only reason it would not show the javadocs is if you manually added a jar or...
made it work!
any way i can make it show more infomation?
eternal oxide
It only shows what the javadocs say. but you can click the icon before teh name to open teh actual doc
round finch
round finch
ok! i were just confusing myself i believe
thought there wasn't enough details for me
but thank you for saving me โค๏ธ
with this mess
civic wind
Does anybody have experience with text components and hoverable/clickable messages? I've been following a course on udemy about bukkit and thought it would be cool to try this but it doesn't seem to be working. This is one of the ways demonstrated in the course... :/
round finch
full error stack?
civic wind
Sorry,
hazy parrot
what is your dependency
civic wind
It didn't say i needed a dependency for it?
hazy parrot
you obv need spigot dependency for making spigot plugin
round finch
his instance is probably null
hazy parrot
I mean, its class not found
civic wind
you obv need spigot dependency for making spigot plugin
It's a fully functioning plugin lol, course I have spigot dependancy
I think i worked out why
hazy parrot
It's a fully functioning plugin lol, course I have spigot dependancy
can you show your pom
civic wind
can you show your pom
grizzled steeple
Hello can anyone make me a panel (minecraft hosting)
civic wind
Hello can anyone make me a panel (minecraft hosting)
Google... SparkedHost, BisectHosting, PebbleHost, etc
grizzled steeple
(๏ฟฃใ๏ฟฃ๏ผแดดแดนแดน
grizzled steeple
nah on petyocry or smth
civic wind
nah on petyocry or smth
SparkedHost, they will set it up for you too
grizzled steeple
like making your own host
yes something like that
grizzled steeple
SparkedHost, they will set it up for you too
hmmmmmmmmmmm lemme try
civic wind
can you show your pom
Any ideas?
round finch
what your main plugin class?
grizzled steeple
SparkedHost, they will set it up for you too
ddnt work
grizzled steeple
what your main plugin class?
can you help with the host ?
civic wind
what your main plugin class?
That's where its saying in the error for the main class 'StaffMode'
pseudo hazel
Any ideas?
have you tried rebuilding/exporting?
civic wind
have you tried rebuilding/exporting?
Will try this now
hazy parrot
and how do you build your jar ?
civic wind
have you tried rebuilding/exporting?
No luck
hazy parrot
SparkedHost, they will set it up for you too
also this is bad thing to suggest, after they come crying on ptero discord with 0 knowladge of basic linux administration
civic wind
and how do you build your jar ?
Wdym?
vast raven
with @Ovveride?
fluid river
onDisable thanks
round finch
and that too
fluid river
with @Ovveride?
bruh
civic wind
Then I just 'build artifact' and export to saved file destination
civic wind
fluid river
Then I just 'build artifact' and export to saved file destination
you need to compile it using mvn package
civic wind
Ahh
tardy delta
fucks up dependencies
civic wind
Ah i see, thanks
fluid river
hello brush
tardy delta
man making snake lol
civic wind
I should google how to compile with maven? Never done it
fluid river
man making snake lol
man i made BoobleJump
tardy delta
you should have a maven tab on the right
hazy parrot
I should google how to compile with maven? Never done it
just double shift and type mvn clean package
if ij
hazy parrot
Then I just 'build artifact' and export to saved file destination
also this ignores pom
tardy delta
cant speak lol
hazy parrot
double ctrl*
mb
fluid river
cant speak lol
just call
round finch
man making snake lol
fixed size hmm
fluid river
no vc
tardy delta
how am i supposed to move
fluid river
A D
civic wind
What does "invalid target release: 1.8.0_202" mean?
fluid river
Basically try to avoid hitting the walls
tardy delta
ah just ad
fluid river
they have fixed bounce velocity
tardy delta
well done
fluid river
ah just ad
you pc is infected i know your PP length now
round finch
how do you work with mns and maven?
i heard something about mojang mappings?
but i never done it before
fluid river
umm
when running buildtools use --remapped
tho you just need to add NMS dependencies as far as i remember
civic wind
Anyone? Maven giving me errors
round finch
like maven docs?
fluid river
there is mojang map which binds a,b,c,d and other methods to their real names
tardy delta
what the hell
fluid river
on the internet
round finch
what the hell
decompiler
tardy delta
lol
fluid river
find my code where i get PP length
tardy delta
decompiled code always shitty
fluid river
it's shitty in general
round finch
heyyo advanced binary code? xd
sterile token
How do you usually name artifactId for a multi module project?
Parent: parent-<project-name>
Modules: <project-name>-<module-name>
tardy delta
mhh gui code always shitty
round finch
mhh gui code always shitty
cough early minecraft
fluid river
@old jay helped me draw buttons
tardy delta
dont even want to make smth gui based in java
fluid river
Are you decompiling plugins?
yes he is
civic wind
wat
fluid river
tardy delta
round finch
i like that very detailed and clean tut
civic wind
Still same error
civic wind
open project settings send screenshot
Not sure
tardy delta
what java version in pom?
civic wind
tardy delta
ah
civic wind
am i using right jdk?
civic wind
ah it's done it, thanks
Does interactentityevent register two clicks ?
It's double clicking, or is my mouse broke lol
glossy venture
pretty sure it calls twice for the hand and off hand
eternal oxide
?handed
lost matrix
Does interactentityevent register two clicks ?
Yes. Once for every hand.
eternal oxide
there is a command
glossy venture
no
lost matrix
?twohands
tardy delta
a player does have two hands
lost matrix
?handy
civic wind
damn how can i make it only once?
tardy delta
lmfao
lost matrix
?interact
civic wind
I checked for item in main hand
tardy delta
only listen for event.getAction() == Action.RIGHT_CLICK or smth
eternal oxide
they make the stupidest of commands. Can never remember them
tardy delta
or left whatever
lost matrix
I checked for item in main hand
Check for item in used hand instead
tardy delta
?workloaddistro kinda stupid one too
civic wind
only listen for event.getAction() == Action.RIGHT_CLICK or smth
It's entityevent
tardy delta
smh
lost matrix
?workloaddistro kinda stupid one too
tardy delta
i even forgot it you see
untold jewel
//check if the action is right_click
if(event.getAction().toString().contains("RIGHT")) {
}
::getHand
civic wind
I've checked for click, it all works, it's double clicking though
tardy delta
imagine interacting an entity with your legs
civic wind
lol
lost matrix
@EventHandler
public void onInteract(PlayerInteractEvent event) {
ItemStack usedItem = event.getItem();
if(!this.freezeHandler.isFreezingTool(usedItem)) {
return;
}
// Freeze target here
}
river oracle
imagine interacting an entity with your legs
HAND HAND
untold jewel
ItemStack itemInHand;
try {
itemInHand = player.getInventory().getItemInMainHand();
} catch (Exception ex) {
}```iirc the interact event is also fired when walking on a pressure plate. Then the interaction is caused by the legs.
lost matrix
```java
ItemStack itemInHand;
try {
itemInHand = player.getInventory().getIte...
Yeah. Delete this.
untold jewel
No
eternal oxide
?interactevent
undone axleBOT
The PlayerInteractEvent may be called once per hand. If you only want code to be executed once, you can check the result of https://hub.spigotmc.org/javadocs/spigot/org/bukkit/event/player/PlayerInteractEvent.html#getHand(), then decide functionality.
For example, only executing code if the main hand was used:
@EventHandler
public void onPlayerInteract(PlayerInteractEvent event) {
if (event.getHand() != EquipmentSlot.HAND) { // * if the hand used is NOT the main hand:
return; // do not progress past this point |
}
// provide functionality
}
I remembered
lost matrix
?interactevent
There we go. But my approach supports a freezing item in both hands.
You could as well just only support the main hand with the slot safeguard.
Either way is viable
tardy delta
putting return in {} ๐
lost matrix
Yes. Clean code all the way.
I get the urge to just return in the same line but its technically not clean.
tardy delta
i always return in the same line, except for returning actual values
if (event.getHand() != EquipmentSlot.HAND) { return; } those people are just evil tho
lost matrix
`if (event.getHand() != EquipmentSlot.HAND) { return; }` those people are just e...
agreed...
sterile token
I need some help trying to load a classes from a jar
civic wind
I need some help trying to load a classes from a jar
We need more info bro
sterile token
I mean dont know where to start coding it
Because my goal is to make a simple loading system like does spigot
tardy delta
wait wha
sullen wharf
ah yes get_name
tardy delta
Because my goal is to make a simple loading system like does spigot
might work
and things like Class::forName and Class:newInstance
sterile token
ok
sterile token
https://kostenko.org/blog/2019/06/runtime-class-loading.html
I cannot use URLCLassLoader since i first need to load only the main class. So if doesnt extends my custom class i dont waste JVM resources
๐ค
round finch
is CraftInventoryPlayer still a thing in 1.18.2?
chrome beacon
Probably
tardy delta
I cannot use URLCLassLoader since i first need to load only the main class. So i...
wha
old jay
<@216533516744130560> helped me draw buttons
ayo
sterile token
wha
First of all i need to scan the jar, looking for a json file and get the field main (which keeps the main class)
Second load only that class to the JVM and check if it extends my custom Extension class
Finally if first and second phases are okay, load the rest things from the jar
Is it a good design?
tardy delta
so youre first looking for a json file with the main class name in?
sterile token
I mean i just need to use JarEntry and other related things to reading the jar
The main issue come to only load the main class into the JVM
Because URLClassLoader load the full jar/file not only a specific class
tardy delta
this maybe?
never done it before lol
and it your main class depends on other class in that jar, it makes sense to load them all ig
round finch
is CraftInventoryPlayer still a thing in 1.18.2?
faund it in boot file //
sterile token
and it your main class depends on other class in that jar, it makes sense to loa...
Yes you are right
Because i was thinking that doesnt make sense loading the full jar if then when i check the main class doesnt extends my custom class i just load it for nothing
sterile token
dunno if loading the main class loads the classes that it uses tho
dummno?
Doesnt have translation
neither ig
zealous osprey
I wished you could do smth like this:
try (Reader input = new FileReader(filePath)) {
// do stuff
} catch (Exception e) {
// handle exception
} finally {
input.close()
}```
instead of having to declare reader first as `null` so you can close it in the `finally` blockcant you?
river oracle
I wished you could do smth like this:
```java
try (Reader input = new FileReader...
Yk you don't need the finally it auto closes when defined like that
zealous osprey
ye, but for other thorwable methods, the reader was just a good example
river oracle
Pry much everything should auto close when defined like that can't think of any exceptions
zealous osprey
ยฏ_(ใ)_/ยฏ
river oracle
Finally kinda useless
Unless you have some weird cleanup work but I've never had to use it
radiant umbra
Hello, im using https://github.com/hub4j/github-api and wanna download a jar file from a release in a private repo (download to a specific path). Right now im stuck on the downloading part, I get like an FileNotFoundException Error. Someone said I need to send like the OAuth Token as a bearer to authenticate? Btw: Im using java 8 so i cannot use HttpClient from java 11
glossy venture
is there a way to remap a port of a process using a ProcessBuilder or Process in java
lets say a process listens on port 2000 but i want it to actually open and listen on port 2001 on the host, without changing the configuration of the process
sterile token
Hello, im using https://github.com/hub4j/github-api and wanna download a jar fil...
You can use OkkHttpClient or vanilla HttpURLConnection from java
radiant umbra
sure
sterile token
@radiant umbra
public static void main(String[] args) throws IOException {
URL url = new URL("url here");
HttpURLConnection client = (HttpURLConnection) url.openConnection();
client.setRequestMethod("request method verb");
client.setRequestProperty("Authentication", "Bearer token-here");
client.setDoInput(true);
client.setDoOutput(true);
client.connect();
}```There you have
For getting the responses you have to use the client.getInputStream() and for passing data use client.getOutputStream()
Sorry for ping its just for you to know that i answered
radiant umbra
Sorry for ping its just for you to know that i answered
Dont worry, imma try that ty
Whats the request method verb?
sterile token
Whats the request method verb?
Depends what accept the github api
Could be GET, POST, PUT, DELETE
Github rest api have diff endpoints with diff request methods, parameters, etc
radiant umbra
alright, trying "GET"
sterile token
That should be specified on github api
I mean read about the endpoint you are trying to use it will tell how to use it, the parameters, etc
radiant umbra
and then can i download it with Files.copy(client.getInputStream(), Paths.get("test.jar"), StandardCopyOption.REPLACE_EXISTING); ?
quiet ice
I'd not use HttpURLConnection as that one is prone to DNS issues from my experience, I'd rather recommend the http client lib built into java these days
radiant umbra
<@498097438956191744>
```java
public static void main(String[] args) throws IOE...
This doesnt work (file still doesnt found)
public static void download() throws IOException {
URL url = new URL("https://github.com/ole1011/Newsc-master/releases/download/release/test.jar");
HttpURLConnection client = (HttpURLConnection) url.openConnection();
client.setRequestMethod("GET");
client.setRequestProperty("Authentication", "Bearer [token]");
client.setDoInput(true);
client.setDoOutput(true);
client.connect();
Files.copy(client.getInputStream(), Paths.get("test.jar"), StandardCopyOption.REPLACE_EXISTING);
client.disconnect();
}
you can create a DateTime object or smth from a string afaik
remote swallow
wouldnt essentials code have something similar to that you could look at
round finch
Loading API from specific Folder location how so?
twin venture
hi , anyone know a fix for this ?
HikariPool-1 - Connection is not available, request timed out after 30002ms.
keep spamming this error .. after few minutes of server start
civic wind
For a combat tag timer, right now i have it for move event, for the timer to expire, but if a players stood still it will keep counting below 0 till the player moves. What better way could i do this?
crimson terrace
For a combat tag timer, right now i have it for move event, for the timer to ex...
I made a timer which is on one second for something like this recently
Gives you more control and a surefire way of calling your methods
The event only triggers when you move anything. If youre afk it doesnt
civic wind
The event only triggers when you move anything. If youre afk it doesnt
Yeah, I've tested it, Shreb is right
crimson terrace
Ye, thats not the question tho
crimson terrace
I say put it on a timer instead of an event
civic wind
I was going to check it with player coords?
crimson terrace
Thats what the move event does
tardy delta
dont call both ::contains and ::get too
civic wind
Why?
crimson terrace
dont call both ::contains and ::get too
I dont see a reason for this, mind elaborating?
quiet ice
.contains is loosely a .get call
You can just call .get and then do a null check on that
tardy delta
if (contains(k)) { get(k).whatever() } is redundant, call get and see if its notnull
quiet ice
Thus avoiding a get call
civic wind
Ah i see, does it really matter though or?
quiet ice
Though arguably outside of hot code it wont matter that much
crimson terrace
Does contains just do get and nullcheck? If so I agree, even tho its not too bad to do it
quiet ice
If you absolutely need to optimise something that is an easy way to get rid of a few opcodes
quiet ice
But I believe that JIT will optimise that method call away anyways as long as you are not using concurrent stuff
quiet ice
Tbh contains makes the code more readable
readability is often dictated by what you are accustomed to
crimson terrace
Valid point on the optimization
zealous osprey
private static final Map<ShipType, List<Ship>> shipMap = new HashMap<>();
protected Ship(int size, ShipType type, int coordY, int coordX, ShipDirection dir) {
this.size = size;
this.type = type;
this.coordY = coordY;
this.coordX = coordX;
this.dir = dir;
shipMap.computeIfPresent(type, (shipType, ships) -> { ships.add(this); return ships; });
shipMap.computeIfAbsent(type, shipType -> List.of(this));
}
Is there a better way of doing this?
quiet ice
How considering that the collection itself can be modified between .contains and .get JIT might actually not run
zealous osprey
```java
private static final Map<ShipType, List<Ship>> shipMap = new HashMap<>()...
Or do you prefer something like:
if (!shipMap.containsKey(shipType)) shipMap.put(shipType, List.of(this));
else {
final List<Ship> ships = shipMap.get(shipType);
ships.add(this);
shipMap.put(shipType, ships);
}
```?Simply use .compute?
quiet ice
Yeah, hashmap doesn't do a nullcheck on the value
crimson terrace
https://hg.openjdk.java.net/jdk8/jdk8/jdk/file/687fd7c7986d/src/share/classes/ja...
thanks, I am looking it up now, couldnt earlier cuz phone
quiet ice
CHM probably does though
tardy delta
HashMap::containsKey and HashMap::get does exactly the same
quiet ice
```java
private static final Map<ShipType, List<Ship>> shipMap = new HashMap<>()...
So
shipMap.compute(type, (var10001, ships) -> {
if (ships == null) { ships = new ArrayList<>(); }
ships.add(this);
return ships;
});
what
tardy delta
oh just telling
fluid river
shipMap.compute(type, (var10001, ships) -> {
if (ships == null) { ships = List.of(this); }
return ships;
});```
hasty prawn
It can only store 1 null key right?
fringe hemlock
I thought a HashMap canโt store Null keys
quiet ice
```java
shipMap.compute(type, (var10001, ships) -> {
if (ships == null) { shi...
List#of is immutable you moron
zealous osprey
```java
shipMap.compute(type, (var10001, ships) -> {
if (ships == null) { shi...
that doesnt add the new ship tho, right?
fluid river
does he need mutable
fluid river
then never use my solution friend
zealous osprey
Ye, I need mutability
tardy delta
zealous osprey
List#of is immutable you moron
Thx, almost forgot about that
fluid river
And it wont add the new ship if the list already exists
true actially just realized
quiet ice
not exactly teh same
null value != null node
A node is a key -> value pair for reference
fluid river
hey guys
quiet ice
(though for the reason we came to this discussion a null check on .get is actually better than a .contains call)
fluid river
void process(Object o) {} can basically eat every object right?
quiet ice
Object, yes
fluid river
what if i want the method to eat every object BUT not objects of Object class
quiet ice
At least until LWorld comes along - at that point I do not know
lost matrix
One could also use a functional approach
Player player = event.getPlayer();
UUID playerId = player.getUniqueId();
Optional.ofNullable(combat.get(playerId))
.map(cd -> cd - System.currentTimeMillis())
.filter(remaining -> remaining / 1000 <= 0)
.ifPresent(remaining -> {
combat.remove(playerId);
player.sendMessage("Something");
});
T extends Object ig
Or T super Object idk
fluid river
void process(T extends Object o) {}``` would it look like thisis this even possible
tardy delta
T will always extend object
quiet ice
Yeah, LocalDateTimeFormat will do the trick
quiet ice
```java
void process(T extends Object o) {}``` would it look like this
No, generics
fluid river
T will always extend object
true but if i want everything but not object itself
lost matrix
```java
void process(T extends Object o) {}``` would it look like this
<T extends Object> void process(T t) {}
uhh explain me
fluid river
the easiest solution is like if (o.getClass() == Object.class) return;
fluid river
```java
<T extends Object> void process(T t) {}
```
i need void method tho
which eats everything except Object
quiet ice
Does not exist
lost matrix
i need void method tho
Thats a void method
quiet ice
Use DateTimeFormatterBuilder, which does actually work for parsing too
lost matrix
T will always extend object
In this format T has to extend Object. Only Object does not extend itself.
quiet ice
new DateTimeFormatterBuilder().appendValue(ChronoField.SECOND_OF_MINUTE).toFormatter().parse("15");
Typed method
fluid river
In this format T has to extend Object. Only Object does not extend itself.
how do you check that tho
that object doesn't extend its own class
lost matrix
how do you check that tho
You dont check that. This is a compile time statement.
fluid river
i mean instanceof would return true
lost matrix
that object doesn't extend its own class
You cant extend yourself...
fluid river
I mean yeah you cant but
fluid river
At runtime do
```java
if (obj.getClass() == Object.class)
```
that's what i already suggested to myself here
fluid river
You cant extend yourself...
i mean instanceof would return true
cuz object is object
quiet ice
The answer is yes if you couldn't tell
tardy delta
so youre restricting an Object from being passed in?
quiet ice
If you meant what I hope you meant
fluid river
Didn't work tho
quiet ice
i mean instanceof would return true
Yes, thus use .getCell
fluid river
i guess not technically possible
basically Object does extend itself xD
Somehow
weird oop i guess
i tried T super String and passed anonymous CharSequence
still not possible
not for typed method at least
fluid river
so i guess the only real way is to use
if (o.getClass() == Object.class) return;
cuz objects do extend their own classes
for some reason
quiet ice
Mye
Signatures are only a recommendatikn anyways
Nothing the JVM/other Classes need to uihold to the letter
Hence the only safeguwrd is Javac itself
civic wind
One could also use a functional approach
```java
Player player = event.getPl...
this would work instead of move event and just remove combat if it goes below 0?
tardy delta
mmyes
fluid river
u
civic wind
I just did this for location (Don't hate on me if it's dumb i not really worked with tasks lol)
tardy delta
where early returns
twin venture
Hello :
Connection leak detection triggered for com.mysql.cj.jdbc.ConnectionImpl@2eac3147 on thread Thread-41, stack trace follows
java.lang.Exception: Apparent connection leak detected
fluid river
nested ifs go brrt
quiet ice
what does Mye mean tho
"Yes, but I have concerns that I an too lazy to Formulate as of yet"
twin venture
Hello :
Connection leak detection triggered for com.mysql.cj.jdbc.ConnectionImp...
Help please!
civic wind
nested ifs go brrt
bad?:O
fluid river
"Yes, but I have concerns that I an too lazy to Formulate as of yet"
bro english please
twin venture
civic wind
howcome?
"Why This is Bad. Deeply nested conditionals make it just about impossible to tell what code will run, or when. The big problem with nested conditionals is that they muddy up code's control flow: in other words, they make it just about impossible to tell what code will run, or when."
ahhh
quiet ice
bro english please
I don't Like writing Long elaborate sentences If under pressure
tardy delta
i wish java had something like a LazyValue<T> which could be treated like a T instance but couldnt been computed yet ๐ข
grim ice
im bored
civic wind
I'm tired
lost matrix
i wish java had something like a `LazyValue<T>` which could be treated like a T ...
Which language has that? Sounds like it breaks type safety
quiet ice
Yeah then use the instance millis chrono field
grim ice
is having a public static final map or set in a class that uses it, and for some other related classes to use it as well, static abuse
quiet ice
Or Epoch millis whatever you should get the gist
lost matrix
is having a public static final map or set in a class that uses it, and for some...
Yes
grim ice
just had to make sure
lost matrix
Prime static abuse even
lost matrix
*If the map is immutable then the story is different
worldly ingot
Which language has that? Sounds like it breaks type safety
I want to say Kotlin has a lazy keyword? Could be wrong though
onyx fjord
is anyone aware which animation ID golem uses for attack
twin venture
HELP : Connection leak detection triggered for com.mysql.cj.jdbc.ConnectionImpl@2eac3147 on thread Thread-41, stack trace follows
java.lang.Exception: Apparent connection leak detected
how i can fix this?
tardy delta
well basically want something like
LazyValue<Location> location = LazyValue.wrap(this::computeLocation);
location.setX(20);
so you can call methods on the object without knowing if it needs to be computed first or whatever
no need for null checks and stuff
grim ice
man i always read hikari as hikaru (as the chess grandmaster hikaru nakamura)
floral drum
nested ifs go brrt
rate mine
tardy delta
atleast use a Set.of().stream().allMatch for that lol
tardy delta
Set.of(flag1, flag2, flag3, ...).stream().allMatch(t -> t)
boolean b = 1 smh
would work in c++ ig
floral drum
so it doesn't have the orange underline
in the if ()
just why not error before it haha
floral drum
aka this
grim ice
csharp just bothers me
floral drum
but like
Instead of using network libraries, I decided to make networking for my game with sockets... WOOO
it was fun tho
tardy delta
time to play coc
grim ice
Instead of using network libraries, I decided to make networking for my game wit...
in what language
floral drum
For games development yes, and if you want to make simple-ish type games without being in a large company
civic wind
Damn it didn't work
floral drum
like it's good for beginning
no cap
I do games dev in college and we do Unity
I did start using unity when I was 11-12 tho
tardy delta
instead of get != null => remove check if remove
grim ice
yeah idk
grim ice
im honestly just bored
floral drum
what the fuck
floral drum
bro I don't make babies, I get no girls ๐ญ
grim ice
which idk why im doing ๐
floral drum
I'm not a baby boomer!
tardy delta
?
undone axleBOT
Here are some links to get you started on learning Java:
- https://www.codecademy.com/learn/learn-java
- https://www.sololearn.com/learning/1068
- https://www.learnjavaonline.org/
- https://programmingbydoing.com/
- https://docs.oracle.com/javase/tutorial/java/index.html
The last one is the only official one, however some of those concepts assume that you already know a bit about programming.
floral drum
vouch
tardy delta
if (contains()) { remove() }
//is the same thing as
if (remove()) { // object is removed, do other stuff }```you confuse me
remote swallow
i confuse myself
floral drum
fairs
floral drum
YO your toe bones are so fucking long wtf\
remote swallow
lmao
remote swallow
wanna know the dumbest thing i did like 3 or 4 months ago
grim ice
its a desktop startup that does a macro u record (routine) and select
floral drum
look at how long those bones are
tardy delta
that doesnt look exactly healty
grim ice
e.g u record a macro that launches chrome once ur device starts and youtube, as well as discord
floral drum
exactlyyy
remote swallow
i hate that that feels true
grim ice
then u can select it
remote swallow
anyone got an axe
tardy delta
should be working on java stuff but school gives me webdev appointments smh
remote swallow
get one or ill chef you up bruv
remote swallow
im in birmingham
remote swallow
ill pull a map up one sec
floral drum
me
remote swallow
telling me to go to birmingham when your like 3 years away
looks like your just off the m1
floral drum
lol it's crazy tho that we think it's such a big distance
but people in america travel across states
remote swallow
takes days
floral drum
๐ญ
floral drum
F
remote swallow
ikea had no large desks near me
floral drum
I getting new SSD 
keen basin
Why when I update the value in the scoreboard it adds a new line ?
remote swallow
I getting new SSD <:Pog:865612074213048330>
what company and is it sata or m.2 and what size
floral drum
WD Black SN850 2TB gen 4 NVME m.2
remote swallow
look at you
civic wind
It's doing what i want it to do, but getting this error i need a null check right but where
radiant umbra
This doesnt work (file still doesnt found)
```java
public static void download()...
Anyone maybe?
civic wind
like if its null, do what?
remote swallow
can we get line numbers on that screenshot
zealous osprey
like if its null, do what?
Then the player has not entered combat ยฏ_(ใ)_/ยฏ
Probably should end the task then
civic wind
can we get line numbers on that screenshot
civic wind
Then the player has not entered combat ยฏ\_(ใ)_/ยฏ
Probably should end the task th...
I need the task to keep running, as its checking all players
keen basin
Why when I update the value in the scoreboard it adds a new line ?
can someone help me ?
zealous osprey
I need the task to keep running, as its checking all players
then just do an if check. I don't see a check, if the player is in combat in your code
zealous osprey
eat and take a short break, often helps
crimson terrace
I cant seem to figure out how to get rid of these boss bars. They appear when a mob which has a boss bar attached to it by my plugin is still alive when I stop the server completely. doesnt happen on reload
trying to handle it like this, its not working, the boss bar remains even when the method was called. The bottom part of the method is probably the one thats not correct --SOLVED--
wary topaz
https://github.com/EthanGarey/BetterCommands
Main.java lines 50 through 55
It does not seem to do anything even though it reloads the plugin (It doesnt really reload it)/
remote swallow
i dont think its possible to fully reload your plugin by itself
tardy delta
?main
undone axleBOT
crimson terrace
you could make a method to reload all necessary values and clear all maps/lists
remote swallow
main.java doesnt even go to 55
tardy delta
whys everything public
remote swallow
still last commit 14 hours ago
tardy delta
make a commit and push
crimson terrace
maybe wrong branch?
remote swallow
commit then press commit and push
wary topaz
comitted
crimson terrace
you have to push it to remote aswell
remote swallow
still no update
remote swallow
got it
wary topaz
53 and 54 are the main probloms
Bukkit.getPluginManager().disablePlugin(this);
Bukkit.getPluginManager().enablePlugin(this);
they will just mark the plugin as disabled not actually turn it off
wary topaz
how can I reload the jar
remote swallow
depends, do you only need it for testing or just to reload some values in the pluign
wary topaz
whats the difference between plugwoman and plugman
remote swallow
plugman is more resource intensive
wary topaz
ohhh
thanks
now I dont have to reload any more ๐
also another question, I have my alt+s keybinded to build the project, any way I can make it control s because when I set it to that it just doesnt work
I want it to do both
remote swallow
crtl s is probably mapped somewhere else
wary topaz
save and build
remote swallow
ill check one sec
wary topaz
also another question (lol) every time the plugin reloads is there a way I can add a 1 to the version in the .jar file and the console ([BetterCommand] version: 1.0.0)
wait not the jar file
nvm
just the console
wind blaze
may anyone tell me how to let code go off on exact times of the day? like everyday at 7 am for example
remote swallow
may anyone tell me how to let code go off on exact times of the day? like everyd...
depends if the server turns off and on again
remote swallow
yeah
wind blaze
probs will yeah
remote swallow
save and build
do you have build or rebuild mapped
unborn kiln
Can you go down a line for a gameprofile name like this?
