I'm from portugal, there are only like 3 developers out here
#help-development
wet breach
his GF is in Germany
echo basalt
and like that one guy that asks for help once in a while
vagrant stratus
Youtuber actually
echo basalt
I do work for youtubers sometimes but still
idk it's weird
I already have my life planned out to be like
single and lonely
tardy delta
thats the spirit
wet breach
just get a bunch of cats
vagrant stratus
through youtube
Yee, we met on a YTer's discord server lol
echo basalt
game plan
tardy delta
become an old cat lady
echo basalt
pretty much
echo basalt
A friend of mine brought me dinner the other day and I thought about it all night
tardy delta
:o
echo basalt
homemade chicken that her mom made
tardy delta
oh it was a her
echo basalt
well you can't expect life to come to you
my man I'm on the move for like 21 hours a day
the other 3 are for sleep
wet breach
then what is the issue lol
echo basalt
regardless gtg
wet breach
well cya later then
echo basalt
then what is the issue lol
no bitches
wet breach
can always ask your friend out π
echo basalt
tiny problem I'm a minor and she's like 6 years older
wet breach
tiny problem I'm a minor and she's like 6 years older
oh then wait a few more years I guess lol
tardy delta
echo basalt
few more months 
wet breach
there you go
wet breach
kissing isn't illegal ironically
tardy delta
people younger than me writing better code than me π
river oracle
Ur just bad
dry forum
section.set("facing", String.valueOf(bmeta.getFacing()));``` ```Caused by: java.lang.ClassCastException: class org.bukkit.craftbukkit.v1_19_R1.block.impl.CraftRotatable cannot be cast to class org.bukkit.block.data.Directional``` how can i get the direction a block is facingIm 17
Been making plugins for 6 years
Coding for 11
wet breach
people younger than me writing better code than me π
I been coding since I was like 10
echo basalt
I wouldn't judge you
tardy delta
dedication
tardy delta
ive been coding like uhh 3years lol
wet breach
21 years I been coding π
tardy delta
and doing some informatics stuff the year before
remote swallow
ive been coding like 6 months lmfao
echo basalt
Boomer
river oracle
I thought I was starting young at 15 lol
wet breach
lol
quaint mantle
how do people have the patience for coding in elementary school π
wet breach
how do people have the patience for coding in elementary school π
my mom was learning coding when she was going to college
quaint mantle
was for me when I first started
echo basalt
how do people have the patience for coding in elementary school π
Had no friends
quaint mantle
Idk
quiet ice
I thought I was starting young at 15 lol
Most in this community started at a bit younger age
torn shuttle
man I'd forgotten how much javascript sucks
echo basalt
man I'd forgotten how much javascript sucks
man I'd forgotten how much you suck
tardy delta
cuties
torn shuttle
man I'd forgotten how much you suck
keep dreaming, you ain't got that kind of cash
river oracle
Most in this community started at a bit younger age
I didn't get a computer until 2017 and didn't even think about coding until covid started lol when I did learn tho I skipped school to
echo basalt
keep dreaming, you ain't got that kind of cash
Don't care
torn shuttle
every time I try to look something up the answer is in an 11 year old jquery format
echo basalt
I'm living life with what I got
torn shuttle
I'm living life with what I got
wow I am sorry for your disability
that must really suck
can't relate
tardy delta
ffs
quiet ice
I didn't get a computer until 2017 and didn't even think about coding until covi...
I learned how to code due to my parents kindof forcing me to. In the end I ended up programming as an excuse to play minecraft ^^
torn shuttle
I'm learning javascript because I hate myself
quiet ice
These days I cannot play minecraft anymore, which is just sad
torn shuttle
well tbf at this point it's not really learning but still
river oracle
I learned how to code due to my parents kindof forcing me to. In the end I ended...
I didn't really get started with Java until after 6 months of scripting in python
quiet ice
I didn't really get started with Java until after 6 months of scripting in pytho...
I mean the start of any programming life is to dick around a bit
tardy delta
jit be like: i got a 30Β΅s for you the 2nd run
opal juniper
These days I cannot play minecraft anymore, which is just sad
huh? why is that
river oracle
I just can't believe I used python properly to start instead of being a dumbass and tryna make a game or something
quiet ice
huh? why is that
No motivation or something. I don't know either
opal juniper
fair enough
river oracle
I need to make money doing this shit tho. My code sucks so I never wanna post a plugin on spigot lmao
I'm surprised a server had hired me during the summer
quaint mantle
No motivation or something. I don't know either
mc got really boring at some point, development is basically the only way I can play now
quiet ice
I always end up depending on paper or doing some cursed shit like working with ASM and sun.misc.Unsafe which is why I rarely upload to spigot
river oracle
What Is ASM
quiet ice
Bytecode editing lib
river oracle
Is that just another memory management thing like unsafe
quaint mantle
Nothing you would want to use unless you hate yourself
river oracle
Ahhh
dry forum
``` Directional bmeta = (Directional) block.getBlockData();
...
anyone?
river oracle
Is unsafe a huge security vulnerability
torn shuttle
unsafe is a way of life
wet breach
depends
echo basalt
I wouldn't say so
wet breach
for the most part no
but you can do a lot with unsafe however
that isn't normally allowed lol
river oracle
I tbh want to change a private static final field for something in nms xD was curious
quiet ice
Allocing objects without running the constructor is nice
quiet ice
I tbh want to change a private static final field for something in nms xD was cu...
Yeah unsafe is the only way for that
torn shuttle
some people say it's unsafe to do 100mph in a school crossing, I say life is full of small speedbumps and that's never stopped me before
tardy delta
Unsafe::allocateInstance 
river oracle
Allocing objects without running the constructor is nice
When would you use that?
glossy venture
Is unsafe a huge security vulnerability
unsafe is cool
but jdk 16 killed it
cant use it now
quiet ice
You still can
quiet ice
Like always?
wet breach
there are other ways to do things other then just using unsafe
glossy venture
unsafe best and fastest and coolest
wet breach
you could for example do quite a bit that is unsafe by using JNI
river oracle
What's JNI
glossy venture
jni calls are slow though and unsafe is built in so no weird dll loading
tardy delta
got so much jvm crashes whilst using unsafe
quiet ice
When would you use that?
Hacks, mostly if some library does something you wouldn't want to do in the constructor but you need to have that object anyways
river oracle
Ahh interesting
river oracle
I'm about to get up and do some stupid shit with unsafe
glossy venture
field offset
river oracle
Yes
tardy delta
ye
glossy venture
sick
tardy delta
never used it tho
river oracle
Time to return to my nms adventures and get to do some stuff I previously couldn't
wet breach
jni calls are slow though and unsafe is built in so no weird dll loading
they are not that slow as you are trying to make it seem
river oracle
they are not that slow as you are trying to make it seem
What is JNI vs unsafe Is JNI a byte code editor or sum
wet breach
Java native interface
torn shuttle
and extreme bricking!
wet breach
there is also JNA as well
echo basalt
wet breach
then you have JNR
tardy flame
Life is hard and we will die
torn shuttle
Life is hard and we will die
speak for yourself, life is easy and I have thus far not died and I don't plan to change that ever
wet breach
JNA uses reflection to call native methods, JNR creates bytecode in runtime only once, so JNR is faster then JNA but they both have their uses
starting with Java 18
we finally got FFI
FFI = Foreign Function Interface
@river oracle yeah you got plenty to research on π
dry forum
section.set("facing", String.valueOf(bmeta.getFacing()));```
```Caused by: java.lang.ClassCastException: class org.bukkit.craftbukkit.v1_19_R1.block.impl.CraftRotatable cannot be cast to class org.bukkit.block.data.Directional``` how can i get the direction a block is facingwhat's that for, calling functions that don't exist?
wet breach
what's that for, calling functions that don't exist?
Interacting with legacy apps
Accessing features not available in the language
Using native libraries
Accessing functions or programs on the host OS
Multi-precision arithmetic, Matrix multiplications
GPU and CPU offloading (Cuda, OpenCL, OpenGL, Vulcan, DirectX, and so on)
Deep learning (Tensorflow, cuDNN, Blas, and so on)
OpenSSL, V8, and many more
Interesting read
runic minnow
Hello, does anyone know how the player.sendMap() function is used, what its purpose is?
remote swallow
warm token
https://paste.md-5.net/imakekazem.coffeescript I'm trying to get the selection of a player using WorldEdit API why, it stills throw the EmptyClipboardException?
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.
sterile token
Its posible to do a instanceof while working with generics params?
bronze fox
how do i create a wait in beetwen here ```java
creeper.setPowered(true);
creeper.explode();```
no
tardy delta
yes
remote swallow
how do i create a wait in beetwen here ```java
creeper.setPowered(tr...
?scheduling
undone axleBOT
tardy delta
thats why people usually pass in a class as constructor param
remote swallow
#runTaskLater
bronze fox
but i want it to wait in a event
sterile token
thats why people usually pass in a class as constructor param
Okay, so i will have to see how i can do that tho, because of how my command api will works you will have:
- An
abstract class Command<C extends Node>- Where i need to have a method to get the node provider - Node contains common getters for each command node
getName(), getAliases(), etc - Finally 2 implementations for the node class
BukkitCommand and BukkitArgument
tardy delta
and whats a node provider
remote swallow
but i want it to wait in a event
you can still use scheduler
bronze fox
can you give an example on my code
sterile token
and whats a node provider
The node provider will be either BukkitCommand or BukkitArgument, that why i asked if generics works with instanceof
But i realize it was a stupid question
tardy delta
i guess a command holds a node field
remote swallow
creeper.setPowered(true);
Bukkit.getScheulder().runTaskTimer(pluginInstance, () -> { creeper.explode(); }, delayInTicks);
just check instanceof on that
sterile token
just check instanceof on that
Hmnn
tardy delta
creeper::explode
bronze fox
```java
creeper.setPowered(true);
Bukkit.getScheulder().runTaskTimer(pluginInsta...
and where do i change the delay
bronze fox
ahh nice thanks
tardy delta
yes
sterile token
Fourten this is node class
bronze fox
isi t still bukkit if i use paper
Bukkit.getScheulder().runTaskTimer(pluginInstance, () -> { creeper.explode(); }, delayInTicks);
this
remote swallow
yes
bronze fox
but
wet breach
isi t still bukkit if i use paper
in a way
bronze fox
after
this
Bukkit.getScheulder().runTaskTimer(pluginInstance, () -> { creeper.explode(); }, delayInTicks);
all code after this
remote swallow
paper is a fork of spigot, spigot is a fork of bukkit
bronze fox
Bukkit.getScheulder().runTaskTimer(pluginInstance, () -> { creeper.explode(); }, delayInTicks);
wet breach
but paper is far removed though from being bukkit in my opinion since they change quite a bit
bronze fox
will it run after the explode
remote swallow
the delayInTick is the delay before it runs
bronze fox
yeah but
eternal oxide
runTaskTimer takes both a delay and repeat ticks as it's a repeating task
bronze fox
all code after Bukkit.getScheulder().runTaskTimer(pluginInstance, () -> { creeper.explode(); }, delayInTicks);
will the code run after this has ran Bukkit.getScheulder().runTaskTimer(pluginInstance, () -> { creeper.explode(); }, delayInTicks);
remote swallow
proves how much my brain is working
bronze fox
do you ubderstand
eternal oxide
runTaskLater is what you want
remote swallow
^^
bronze fox
ok
and how do i use that
but does this still work
Bukkit.getScheulder().runTaskTimer(pluginInstance, () -> { creeper.explode(); }, delayInTicks);
remote swallow
Bukkit.getScheulder().runTaskLater(pluginInstance, () -> {
creeper.explode();
// THIS CODE WILL RUN AFTER THE DelayInTicks
}, delayInTicks);
ohh
i under stand
understand*
symbol: variable pluginInstance
location: class me.zittexx.coolessentails.events.eventthing```i get this
and this
symbol: variable Bukkit
location: class me.zittexx.coolessentails.events.eventthing```Guide to dependency injection: https://www.spigotmc.org/wiki/using-dependency-injection/
bronze fox
when i build
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.
eternal oxide
Build using Maven?
bronze fox
yes
eternal oxide
Then move your imported jars to your pom, don;t import jars to your project
add dependencies to pom
bronze fox
yeah but why does it give me that
eternal oxide
because maven knows nothign about manually imported jars
bronze fox
it doesn't undrestand "bukkit"
this
Creeper creeper = (Creeper) event.getEntity();
creeper.setPowered(true);
creeper.setVelocity(new Vector(0, 1, 0));
Bukkit.getScheulder().runTaskTimer(pluginInstance, () -> { creeper.explode(); }, 10);```does it have the imports too
bronze fox
imports?
wet breach
obviously someone doesn't like reading
remote swallow
?di
undone axleBOT
Guide to dependency injection: https://www.spigotmc.org/wiki/using-dependency-injection/
remote swallow
click it
bronze fox
k
know it cant understand getchudler and plugin intance
getshuelder
cant spell it lmao
remote swallow
change runTaskTimer to runTaskLater
remote swallow
plugininstance?
remote swallow
one sec
public class MyClassName implements Listener {
private final MainClassName plugin;
public MyClassName(MainClassNme plugin) {
this.plugin = plugin;
}
}
and on the constructer change it to new MyClassName(this)
bronze fox
what
remote swallow
?paste ur class
undone axleBOT
bronze fox
tardy delta
might aswell learn some basic java
bronze fox
thats what im tryna do
round finch
?di
undone axleBOT
Guide to dependency injection: https://www.spigotmc.org/wiki/using-dependency-injection/
remote swallow
public class eventthing implements Listener {
private final YourMainClassName plugin;
public eventthing(YourMainClassName plugin) {
this.plugin = plugin;
}
@EventHandler
public void creaturespawn(CreatureSpawnEvent event) {
if(event.getEntityType() == EntityType.CREEPER) {
Creeper creeper = (Creeper) event.getEntity();
creeper.setPowered(true);
creeper.setVelocity(new Vector(0, 1, 0));
Bukkit.getScheduler().runTaskLater(plugin, () -> { creeper.explode(); }, 10);
}
}
}
on ur main class change the constructer to eventthing(this)
so in full getServer().getPluginManager().registerEvents(new eventthing(this), this);
undone axleBOT
remote swallow
that too
sterile token
Fourten, Im doing all this shity and dirty things cuz how i want to implement the execution system, im wondering to command executor or argument, contain the same method for creation. Something like the followed example
// Basic command creation
public class TestCommand extends Command<BukkitCommand> {
public TestCommand() {
super(name, aliases, permission, usage, description):
}
public boolean execute(CommandSender sender, String[] args) {
return true;
}
}
public class FactionList extends Command<BukkitArgument> {
public TestCommand() {
super(name, aliases, permission, usage, description):
}
public boolean execute(CommandSender sender, String[] args) {
getHandler().
return true;
}
}
// Command library initialization
CommandLibrary command = new CommandLibrary(plugin);
// Basic command registration
command.register(new TestCommand());
// Command executor registration
CommandNode faction = command.register("faction").permission("faction.command").description("Faction command");
faction.getArguments().register(new FactionList());
so in plugin = plugin it gives me red
sterile token
so in plugin = plugin it gives me red
Sorry for being rude, but have you learnt java before starting to work with api?
remote swallow
i typed 0 instead of )
round finch
you need the main class instance
bronze fox
Sorry for being rude, but have you learnt java before starting to work with api?
not really
remote swallow
you need the main class instance
^^
bronze fox
i know a little bit
sterile token
not really
So then you have the consequences, if you leant first java and then startng to work with api, you woundt be having this simple things
remote swallow
```java
public class eventthing implements Listener {
private final YourMain...
you can copy and paste this changing YourMainClassName for your main class name
bronze fox
got it
sterile token
Ofc to clarify im not being rude nor what you thinking just to say, because you mustnt be coding using an api or library withut having the language knowledge
wet breach
i typed 0 instead of )
love how you are just sitting here explaining java
sterile token
love how you are just sitting here explaining java
Agree
bronze fox
i know need to learn it and you definitely not rude
sterile token
If i had to do that i would clarify ignore him
remote swallow
lmfao
round finch
writting with java not knowing java hehe
sterile token
I would just ignore him because i definitly not patient
bronze fox
who
sterile token
Also its stupid to code something without learning the lang where you are coding π€‘ π
round finch
you pass your main class cause it extends the JavaPlugin
remote swallow
you havent copied what i sent then
bronze fox
ohh
remote swallow
copy all but the imports chaning YourMainClassName for your main class name
sterile token
love how you are just sitting here explaining java
Now yes!!!
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. https://media.discordapp.net/attachments/694661573125472256/998143126373941248/6n0v4g.gif
sterile token
Lmao my patient went to flor and i dont want to swear
sterile token
most deffo a
Yeah just ignore him or block him
round finch
that is a bit hash lol
sterile token
I think spigot must ban every user asking for support which they dont even know java
bronze fox
true
sterile token
Or atleast make a fkg rule with that because there lot of that type guys which are really ass--hole
π€£
bronze fox
true
round finch
i guess i gotta ban myself for not knowing the whole java api
round finch
joking ofc
round finch
failing to know basic java is a big oof
sterile token
failing to know basic java is a big oof
yeah they must be bannedβ
round finch
Extreme >:) <3
glossy venture
they are not that slow as you are trying to make it seem
also not that fast though
which is usually the reason why you would use unsafe
round finch
then they tell you to pass a java class
glossy venture
or an alternative
wet breach
which is usually the reason why you would use unsafe
Well you have JNA, then JNR which is faster then JNA, then you have JNI which is faster then JNA or JNR and now we have FFI which I think is going to turn out to be better then JNI
wet breach
yes
glossy venture
ahats the i
wet breach
interface
glossy venture
ah
round finch
common mistake i see people do
- being lazy
- not listening to help
- can't be bothered anyway
- not knowing what they're trying to do
glossy venture
Well you have JNA, then JNR which is faster then JNA, then you have JNI which is...
but unsafe is directly implemented into the vm i think
as a primitive
wet breach
you can't do everything from unsafe either
glossy venture
its in hotspot/shared/prims/
nah thats true
but things like quickly getting fields
tardy delta
Fourten, Im doing all this shity and dirty things cuz how i want to implement th...
whats the generic param for
went eating
glossy venture
might be useful for things like fast serialization
wet breach
but things like quickly getting fields
depends at what point in time you are trying to obtain them really
glossy venture
if you have one time get but a lot of querying
like a serialization thing
where you cache the fields in a map
their offsets at least
and then get with unsafe
wet breach
what I mean is, like if you have the ability to obtain the fields before it enters the JVM then that is going to be quicker then waiting on it to be loaded first
wet breach
if the class hasn't been loaded yet, then accessing the jar outside of the JVM is going to be faster
glossy venture
no reading the class file will be way slower
and this is for setting fields
has to be loades
wet breach
if you have to wait for it to be semi loaded but not initialized, then using unsafe is faster
wet breach
no reading the class file will be way slower
it isn't slower if you are directly reading bytecode before the class has even entered the JVM. Not sure what makes you think the JVM magically is faster then anything else that can read a file
glossy venture
it isn't slower if you are directly reading bytecode before the class has even e...
what would you want to do on a thingthat doesnt have the thing already loaded
lavish wing
Hey guys can someone help me?
Why player with nick "MCSTORM_IO" can join?
@EventHandler
public void onPlayerJoin(PlayerLoginEvent e) {
String p = e.getPlayer().getName();
if (p.startsWith("MCSTORM")) {
log.warning("Attack Detected.Blocking...");
e.setKickMessage("Connection Refused.Attack Detected.");
}
}
you can do plenty, but that isn't the point
the point is, it depends at what point in time you are needing to do something
which dictates what you should use
tardy delta
cuz you arent kicking the player
remote swallow
Hey guys can someone help me?
Why player with nick "MCSTORM_IO" can join?
```
...
username or a nick with another plugin
oh yeah
isnt there a PlayerPreLoginEvent
tardy delta
yes
theres no player object available there
only uuid
asyncprelogin tho, sync is deprecated iirc
lavish wing
Using PlayerPreLoginEvent the error is the same
glossy venture
the point is, it depends at what point in time you are needing to do something
for example, runtime serialization of an object
all the fields
the object class is loaded anyways
remote swallow
Hey guys can someone help me?
Why player with nick "MCSTORM_IO" can join?
```
...
add a p.kickPlayer(kickmessagehere)
undone axleBOT
lavish wing
?paste the error you get
It dont give me an error
remote swallow
event.getPlayer().kickPlayer(kickMessage)
try this
shell trench
I try to get the x cordinate the player is standing on.
I'm using this code to achieve it:
Math.floor(player.getLocation().getX()))
But it somehow acts as Math.round().
All numbers between .1 and .5 round down and all numbers betwwen .5 and .0 round up.
Math.floor shoul always round down.
What is the problem here?
remote swallow
offline mode?
runic minnow
Hello, does anyone know how the player.sendMap() function is used, what its purp...
.
lavish wing
But my code was like this:
PLayer p = e.getPlayer
if(p.getName.startswith("MCSTORM")) {
p.kickPlayer(msg)
}
?
wet breach
for example, runtime serialization of an object
depends on what it needs to be serialized for
remote swallow
But my code was like this:
```
PLayer p = e.getPlayer
if(p.getName.startswith("M...
im so confused why your doing that
wet breach
for example, if the object doesn't need to be Java serialized, you can make use of anything else that isn't JDK and it most likely be more efficient
remote swallow
Player p = event.getPlayer();
if (p.getName().startsWith("STRING") p.kickPlayer(msg);
e.getName returns the event name irrc
iirc
tardy delta
for when was pattern matching with null a thing again?
lavish wing
e.getName returns the event name irrc
Sorry, I wrote the code on memory and made a mistake
Not e.getName
It was p.getName
round finch
bruh
river oracle
"overrides": [
{"predicate": {"custom_model_data":9801001}, "model": "btscrolls:item/teleport_new"},
{"predicate": {"custom_model_data":9801002}, "model": "btscrolls:item/teleport_used"},
{"predicate": {"custom_model_data":9801003}, "model": "btscrolls:item/instant_teleport_new"},
{"predicate": {"custom_model_data":9801004}, "model": "btscrolls:item/instant_teleport_used"}
]```just setTexturepack
river oracle
dude I don't think you even know what I'm talking about
topaz kettle
I'm trying to figure out the same thing
round finch
Custom model json is part of the texturepack lmao
twilit roost
Dumb me thought its equivalent of Math.pow but it seems it just adds up
Is there some equivalent of Math.pow?
Which is short?
river oracle
I'm trying to figure out the same thing
https://www.spigotmc.org/threads/custom-model-data.415216/ this thread is pleanty of an example
puts the json out nice
lavish wing
e.getName returns the event name irrc
public void onPlayerJoin(PlayerJoinEvent e) {
Player p = e.getPlayer();
if (p.getName().contains("MCSTORM")) {
log.warning("Attack Detected.Blocking...");
e.getPlayer().setHealth(1);
e.getPlayer().kickPlayer(ChatColor.RED + "ΠΡ Π±ΡΠ»ΠΈ Π·Π°Π±Π»ΠΎΠΊΠΈΡΠΎΠ²Π°Π½Ρ Π·Π° ΠΏΠΎΠΏΡΡΠΊΡ Π°ΡΠ°ΠΊΠΈ ΡΠ΅ΡΠ²Π΅ΡΠ°." + ChatColor.BLUE + "ΠΡΠ»ΠΈ Π²Ρ ΡΡΠΈΡΠ°Π΅ΡΠ΅ ΡΡΠΎ ΡΡΠΎ ΠΎΡΠΈΠ±ΠΊΠ°, ΡΠΎ ΠΎΠ±ΡΠ°ΡΠΈΡΠ΅ΡΡ Π² Π½Π°Ρ Π΄ΠΈΡΠΊΠΎΡΠ΄ ΡΠ΅ΡΠ²Π΅Ρ: " + ChatColor.DARK_AQUA + "
");
}
}
So?Why player can enter?
I tried to replace "startswith" with "contains"
tall dragon
im pretty sure you need to delay the kick by 1 tick if you're doing it from a join event
lavish wing
im pretty sure you need to delay the kick by 1 tick if you're doing it from a jo...
How i can do it?
remote swallow
?scheduling
undone axleBOT
remote swallow
#runTaskLater
lavish wing
#runTaskLater
public void onPlayerJoin(PlayerJoinEvent e) {
Player p = e.getPlayer();
if (p.getName().contains("MCSTORM")) {
log.warning("Attack Detected.Blocking...");
BukkitScheduler scheduler = Bukkit.getScheduler();
scheduler.runTask(mainfixer.getInstance(), () -> {
e.getPlayer().setHealth(1);
e.getPlayer().kickPlayer(msg);
});
}
}```
Now its right?yeah
wait nah
runTaskLater
BukkitScheduler scheduler = Bukkit.getScheduler();
scheduler.runTaskLater(mainfixer.getInstance(), () -> {
e.getPlayer().setHealth(1);
e.getPlayer().kickPlayer(msg);
}, 1);
?
remote swallow
that
lavish wing
Oh, thx
tardy delta
hmm i think i'll do smth like this to handle parentheses
tall dragon
runTaskLater
pretty sure runtask will also do it 1 tick later but yea fair
lavish wing
that
It dont work(
[21:39:03 INFO]: UUID of player MCSTORM_IO is a631968e-f991-3021-abc0-029527e906bd
[21:39:04 INFO]: MCSTORM_IO[/127.0.0.1:49611] logged in with entity id 261 at ([world]-175.2017668330055, 69.0, -134.6030753048176)
try using PlayerLoginEvent instead
using
private void playerJoin(PlayerLoginEvent e) {
e.disallow(PlayerLoginEvent.Result.KICK_OTHER, "Kick Message");
}
hmm didnt know IntPredicate s = i -> i != ')' was possible
tardy delta
looks a lot cleaner
lavish wing
using
```java
private void playerJoin(PlayerLoginEvent e) {
e....
It dont work
tall dragon
did you even register your event then
tall dragon
huh xd
humble tulip
If u don't want a player to join, block it from the asyncplayerpreloginevent
tardy delta
fuck
humble tulip
@tardy delta whay are you doing?
humble tulip
Are you making your own?
tardy delta
yes
tardy delta
AHAHA it works
had to directly modify the newly created expressions reader
optimisation of 20 lines
tall dragon
is it fast tho
glossy venture
for example, if the object doesn't need to be Java serialized, you can make use ...
wdym it doesnt need to be java serialized
tardy delta
better
mans want to see speed
sout calls take relatively long lmao
if you benchmark it
its very jit dependant too
quiet ice
To be expected though
tardy delta
thats why i turn of debug usually
tall dragon
@tardy delta now try 6.5*7.8^2.3 + (3.5^3+7/2)^3 -(5*4/(2-3))*4 + 6.5*7.8^2.3 + (3.5^3+7/2)^3 -(5*4/(2-3))*4 + 6.5*7.8^2.3 + (3.5^3+7/2)^3 -(5*4/(2-3))*4 + 6.5*7.8^2.3 + (3.5^3+7/2)^3 -(5*4/(2-3))*4
quiet ice
Well they usually aren't that slow
tardy delta
this is it basically https://paste.md-5.net/icaqaxelus.cs
tardy delta
<@583252968497872900> now try ``6.5*7.8^2.3 + (3.5^3+7/2)^3 -(5*4/(2-3))*4 + 6.5...
well uh still gotta change my old algorithmn to support operator priority
and lemme see if my new impl fixed the parentheses issue
looks like its back on track
wasnt workin before
glossy venture
nice
lavish wing
?paste
undone axleBOT
glossy venture
ima rewrite my expression parser and interpreter
quiet ice
Does anyone know whether the JVM (I'm talking about the generic Java 17 hotspot JVM) allows to extend final classes?
glossy venture
its so slow 15 ns per execution
lavish wing
im tried to edit code and got error:
https://paste.md-5.net/owesojodiy.cs
tardy delta
there are 1000Β΅s in a nanosecond right?
remote swallow
?paste the class
undone axleBOT
lavish wing
public void onPlayerJoin(PlayerLoginEvent e) {
Player p = e.getPlayer();
String msg = "";
if (p.getName().startsWith("MCSTORM")) {
log.warning("Attack Detected.Blocking...");
getServer().setWhitelist(true);
log.warning("Whitelist was enabled!");
BukkitScheduler scheduler = Bukkit.getScheduler();
scheduler.runTaskLater(mainfixer.getInstance(), () -> {
getServer().setWhitelist(false);
log.warning("Whitelist was disabled!");
}, 60);
e.disallow(PlayerLoginEvent.Result.KICK_OTHER, msg);
}
}```tf are you even trying
glossy venture
Does anyone know whether the JVM (I'm talking about the generic Java 17 hotspot ...
the compiler might optimize method calls to final classes to not use a vtable so it might still not work
quiet ice
Make it easy on yourself and use JavaPlugin.getPlugin(MyPlugin.class) instead of passing the plugin instance around
remote swallow
``` @EventHandler
public void onPlayerJoin(PlayerLoginEvent e) {
...
wrong event
tall dragon
there are 1000Β΅s in a nanosecond right?
yes
tardy delta
its so slow 15 ns per execution
depends on what expression ig
quiet ice
the compiler might optimize method calls to final classes to not use a vtable so...
hm, then I gotta figure out a way to make it forget the final flag
glossy venture
depends on what expression ig
thats only exec tho no parsing
remote swallow
use the AsyncPlayerPreLoginEvent and put the e.disallow in the scheduler
glossy venture
when its already a tree
remote swallow
use the `AsyncPlayerPreLoginEvent` and put the e.disallow in the scheduler
@lavish wing ^^
glossy venture
so yeah its expected to be fast
pure coral
@Override
public boolean onCommand(@NotNull CommandSender commandSender, @NotNull Command command, @NotNull String s, @NotNull String[] args) {
Player p = (Player) commandSender;
p.setDisplayName("Β§c" + p.getName());
return false;
}
}```
But when I execute the command nothing happens, and the name over my head is still white?but not fast enough and i completely fucked function call performance
tardy delta
my first 1+1 expression takes 11685Β΅s and after jit optimizes it's 68Β΅s
my solving algorithmn is slow asf tho
glossy venture
jit is epic
remote swallow
```public class TestCMD implements CommandExecutor {
@Override
public bo...
is the command registered
pure coral
is the command registered
Yes
glossy venture
my solving algorithmn is slow asf tho
solving algorithm?
pure coral
is the command registered
When I add a sendMessage, then it sends a message
tardy delta
i basically loop thro the string, transform it into tokens and later on solve that token chain
quiet ice
Alternatively I'll just inject into Material's switchmap which should allow me to register new materials on the fly
glossy venture
like 5 = x + 7
tardy delta
thats why its slow
glossy venture
do you mean evaluate or solve for x
glossy venture
oh yeah so evaluate
tardy delta
its very static now, whenever i want to add method calls it will go brr
glossy venture
solving algorithm would be epic
tardy delta
im not smart enough to write that
glossy venture
that you enter 5 = x + 7 and it returns x = -2
shouldnt be too hard if you have an ast
but still a pain
quiet ice
You still gotta redo what's basically over 10 years of maths you learned at school
tardy delta
people might just directly instantiate one ig
you're right
or Expression.parse(String)
glossy venture
You still gotta redo what's basically over 10 years of maths you learned at scho...
learning about differentials rn
or whatever theyre called
pure coral
```public class TestCMD implements CommandExecutor {
@Override
public bo...
?? Command is registered, but nothing happens, when I add a sendMessage, it sends the message, but the name over my head is still white
tardy delta
im learning about Math.log in college lmao
quiet ice
log is nice and all, but ln is the real deal
tardy delta
were using some program on our pc to do all the stuff
glossy venture
logBASE is epic
tall dragon
?? Command is registered, but nothing happens, when I add a sendMessage, it send...
im pretty sure displayname is not the name over your head
pretty sure that will be ur name in chat not sure
tardy delta
imagine being able to make this
pure coral
How can I change the name above my head then?
glossy venture
did u know logBASE(x) = logE(x) / logE(BASE) or something like that
tardy delta
yes
pure coral
im pretty sure displayname is not the name over your head
as when I google it, it says that I must use setDisplayName
quiet ice
did u know `logBASE(x) = logE(x) / logE(BASE)` or something like that
logE being ln?
tall dragon
as when I google it, it says that I must use setDisplayName
last time i did it. it had to be done though scoreboard teams
pure coral
last time i did it. it had to be done though scoreboard teams
Ok thx
quiet ice
then ln
tardy delta
normal log is 10log but Math.log is e log right
tardy delta
its confusing
quiet ice
normal log is 10log but Math.log is e log right
There is no normal log
pure coral
could prolly also be done with packets
how?
tardy delta
well i mean log as you would write it somewhere
quiet ice
log is always suffixed by a base, base 10 log is lg
quiet ice
It's something a lot of people neglect
tardy delta
still wondering where ill need logs for anyways
quiet ice
Yeah you can do ln for everything
pure coral
depends on ur mc version
1.19
glossy venture
its written like log[subscript BASE](x) right
glossy venture
the base is in subscript suffixed
quiet ice
log a (b) is what it should be iirc
quiet ice
2log(4) would explicitly mean 2 * lg (4) generally
wispy flicker
Hey all! gettin into development via code and im following guides and when adding protocol lib as a dependency its showing as not found. is there a reason for this?
tardy delta
maven/ gradle?
quiet ice
Or Eclipse JDT or IntelliJ artifacts?
tardy delta
man already outta here
they think we'll tag them
uh my math is bad dont question me
quiet ice
For b^a = c you can do ln(b) * ln(a) = c
glossy venture
ah
tall dragon
1.19
uhhh pretty sure you will need to send
PacketPlayOutPlayerInfo to remove the player
another PacketPlayOutPlayerInfo to add the player with a different name
then a PacketPlayOutDestroyEntity to all players except the player that's changing his name
then lastly a PacketPlayOutNamedEntitySpawn to all players exept the player changing his name.
though im not sure if it still works like this in 1.19
tardy delta
did reload?
quiet ice
Check lowercase/uppercase stuff
tardy delta
wispy flicker
Check lowercase/uppercase stuff
its copy pasted from protocol lib site
quiet ice
Artifact ids should be lowercased generally
pure coral
uhhh pretty sure you will need to send
``PacketPlayOutPlayerInfo`` to remove the...
ok thx
quiet ice
https://mvnrepository.com let's hope it's on there
remote swallow
reload maven
wispy flicker
how
remote swallow
as shown here
quiet ice
For codemc it should be right according to https://mvnrepository.com/artifact/com.comphenix.protocol/ProtocolLib/4.8.0, no idea how other repositories behave there
wispy flicker
seems to have done it!
wet breach
for example, if you need to serialize to XML
wispy flicker
thank you so much!
glossy venture
for example, if you need to serialize to XML
it has to get the fields somehow
wispy flicker
Im quite new to using code for making plugins to be honest.
Is this a good place to get general help with getting stuck?
quiet ice
it's the best place to get help yeah
twilit roost
Is Async World Generation possible somehow?
wispy flicker
had another server and average response was "fix ur sh**** code or learn java
quiet ice
Only paper, the forums and the irc (okay that one not really) can rival it
Well you'll get these answers too
No matter where you are
wispy flicker
ye well that was the only answer you got xD
fluid cypress
do i need to check if a key exists before doing config.getString or something?
wispy flicker
after aboutttt 8 hours of wait
wet breach
it has to get the fields somehow
not sure why you believe everything has to be done in Java
wispy flicker
should i develop on spigot as opposed to paper? if i make a plugin on paper does it limit users to use paper/forks only?
quiet ice
Okay actually, you will very unlikely get the answer in the spigot irc channel
glossy venture
not sure why you believe everything has to be done in Java
yo idk but it has to get the data from objects somehow
tardy delta
do i need to check if a key exists before doing `config.getString` or something?
that will return null when it isnt found iirc
?jd-s
undone axleBOT
wispy flicker
Okay actually, you will very unlikely get the answer in the spigot irc channel
was that to me?
quiet ice
Given that only phoenix and I are active on there and neither of us are particularly keen on shutting down people
glossy venture
does it just boom write the raw data from memory with pointers?
quiet ice
was that to me?
yeah
wispy flicker
oh ok thanks lol
wispy flicker
should i develop on spigot as opposed to paper? if i make a plugin on paper does...
anyone on this?
wet breach
does it just boom write the raw data from memory with pointers?
with new memory api probably could not entirely sure
glossy venture
how do you know the data type
snow wave
In cratesplus I don't know what to do or what permission to give so that users can open chests with the keys, it doesn't let them
wet breach
how do you know the data type
not everything needs to be known, just depends on what you are doing
glossy venture
also Unsafe has access to jvm internals while JNI probably has also been 'made safe'
wet breach
JNI can never be safe
anytime you use JNI, you are stepping outside of the JVM
therefore the JVM has not a clue what is going on
glossy venture
yeah but it probably has some more security code behind the JNI methods
glossy venture
which then eventually calls jvm internals
remote swallow
anyone on this?
if it uses anything that isnt in spigot, it will only work on teh forks i would guess
glossy venture
security code?
verifying access or addresses and whatever
without the and whatever
wet breach
verifying access or addresses and whatever
does none of that
snow wave
Thanks
wet breach
that is on you and your native calls to ensure
if you want to step outside of the JVM, the JVM stops caring about what you are doing outside of it
wispy flicker
What's yalls Go-to guides? i have this really long playlist on YT by Kody Simpson seems to be good idk if theres anything else that wont put a hole in my wallet
tardy delta
looking at github
wet breach
What's yalls Go-to guides? i have this really long playlist on YT by `Kody Simps...
this really depends on who you ask
wispy flicker
i have basic understanding of like how to structure plugins etc and logic behind it its more understanding how to format code and write it out
tardy delta
anyone knows a way to clean this up? https://paste.md-5.net/uqixaxipux.cs
wet breach
some of us don't require guides per-say and are more then happy with working with Documentation as well as just looking at the implementation code
river oracle
?paste
undone axleBOT
wet breach
anyone knows a way to clean this up? https://paste.md-5.net/uqixaxipux.cs
is this for division with floats?
river oracle
I have a texture pack for my plugin, but the texture is not displaying it is just displaying the custom texture
i ensured it has the material data
this.item = ItemBuilder.builder()
.material(Material.DIAMOND)
.modelData(1)
.name(ChatUtil.style("<gradient:ff0000:ff7f00>Crystal of Lava</gradient>"))
.build().make();
I also ensured it was being applied correctly changes I make that break textures do indeed go through and display so that is also out of the question.
I doubled checked and my ItemBuilder does apply it
https://paste.md-5.net/boyonubopu.coffeescript
the png file is in assets/meliorate/textures/items/lava_crystal.png
Not quite sure why it wouldn't be applying correctly. Not quite sure if its with my code or Json I tried changing the json which I think is right, and nothing happened so I'm a tad confused
wet breach
its to read a int from a java.nio.CharBuffer
could always use the code I showed earlier to determine a number
remote swallow
I have a texture pack for my plugin, but the texture is not displaying it is jus...
weird question, can i have ur chat util
river oracle
weird question, can i have ur chat util
just use IridiumChatColorAPI there API is better
midnight shore
Hi, how can i make a point on a line (in my case a raycast) go down until it finds an edge of a block? so that then i can use it as kind of a path? (i tried to show in the photo what i wanted to do)
in this case a point is a location
tardy delta
could always use the code I showed earlier to determine a number
oh a switch is still more effecient
and you essentially only had the x >= '0' and x <= '0' check
im constructing the read integer tho
midnight shore
Hi, how can i make a point on a line (in my case a raycast) go down until it fin...
how can i find P2?
tardy delta
new TokenReader("123ahdha").readInt() would give 123
opal juniper
which is p2
opal juniper
errr just raytace, get the block x and z and then use the like getHighestAt thingy
ig
wet breach
oh a switch is still more effecient
well just depends how it is constructed really. Switch is just a form of loop unrolling. But I don't know your program well enough to determine which is best lol
midnight shore
errr just raytace, get the block x and z and then use the like getHighestAt thin...
so i get the lowest block and then i use getHighestAt?
tardy delta
its basically a simple Integer.parseInt
midnight shore
so i get the lowest block and then i use getHighestAt?
ohh i get
dry forum
section.set("facing", String.valueOf(bmeta.getFacing()));``` ```Caused by: java.lang.ClassCastException: class org.bukkit.craftbukkit.v1_19_R1.block.impl.CraftRotatable cannot be cast to class org.bukkit.block.data.Directional``` im trying to get the rotation of a blockRotatable and Directional are two different interfaces
wet breach
that don't interact with each other
dry forum
so im casting to the wrong thing?
wet breach
the exception should have made that obvious
eternal oxide
instanceof is your friend
wet breach
you can't cast to something that doesn't have a relation to one another
midnight shore
errr just raytace, get the block x and z and then use the like getHighestAt thin...
wait i found the method but it does only work with integers so basically no offset just the corner of the block
wet breach
well blocks are only 1meter by 1meter
so you could just create your own
0-1
0.5 being in the middle lol
tardy delta
brr im always confused between arr[i++] and arr[++i]
tall dragon
wait i found the method but it does only work with integers so basically no offs...
can u just add your offset back to it?
dry forum
Caused by: java.lang.ClassCastException: class org.bukkit.craftbukkit.v1_19_R1.block.impl.CraftRotatable cannot be cast to class org.bukkit.block.data.Rotatable Rotatable bmeta = (Rotatable) block.getState().getBlockData(); section.set("facing", String.valueOf(bmeta.getRotation()));
midnight shore
can u just add your offset back to it?
how can i do this?
tall dragon
well u have x, z right
midnight shore
yes
how can i get the decimals
wait
if i make it a string
and then split from ,
will it work?
wet breach
you do know you could just use double
midnight shore
what do you mean
wet breach
an integer is a double without the decimal
midnight shore
yes i know
wet breach
so....add your new integer to the double that has your offset? and return a double
integers and doubles can be added together without anything fancy being needed
midnight shore
won't this get me double the coordinates?
wet breach
but you do need to return a double to retain the decimal stuff and what not π
vagrant stratus
Any real reason/use cases for me to use something like postgres over MySQL or SQLite? π€
wet breach
Any real reason/use cases for me to use something like postgres over MySQL or SQ...
when you want to store objects themselves without transforming them
Postgres is ORDBMS
midnight shore
but you do need to return a double to retain the decimal stuff and what not π
wait i'm not sure i understood your method... So for example i have coordinates 3.43 then how can i get just the .43?
tall dragon
wait i'm not sure i understood your method... So for example i have coordinates ...
why do you need that
midnight shore
why do you need that
for the offset
tall dragon
u have x, z so just the Y of the highest block and add them together
and u got the location
vagrant stratus
when you want to store objects themselves without transforming them
Ah, so like for discord it would be images/uploaded files and instead of to disk it would be stored in postgres?
opal juniper
wait i'm not sure i understood your method... So for example i have coordinates ...
.getX() - .getBlockX()
vagrant stratus
(not that they use postgres, they use cassandra from the one thing I could find on their backend lmao)
midnight shore
and u got the location
yes but this just gets me the corner
tall dragon
no it doesnt?
wet breach
Ah, so like for discord it would be images/uploaded files and instead of to disk...
not sure, but lets use Java as an example. Instead of serializing say the Player object, it will store the object as it is so you can pull it back out later
there is no transforming or translating the object to something else
tall dragon
as long as your original x, z is not in the corner
midnight shore
no it doesnt?
ohh i see
vagrant stratus
not sure, but lets use Java as an example. Instead of serializing say the Player...
Ah, makes sense then.
I still however can't think of use cases off the top of my head lmao
tardy delta
i never know when to use what database either
wet breach
lol
midnight shore
as long as your original x, z is not in the corner
something like this i guess?
vagrant stratus
I just use SQLite for everything lmao
echo basalt
something like this i guess?
add a +1 to be at the surface
vagrant stratus
One of the jobs I'm looking at has PostgreSQL as one of the Experiences/Skills, but I can't think of any actual use case so I can learn it π
wet breach
SQLite is nice, only problem with it is its only good for small to maybe medium sized stuff
eternal oxide
only point between SQLite and others is if you need to access the same data from multiple apps/locations
wet breach
since I tend to need MySQL anyways, it is my preferred DB format
vagrant stratus
Apache Cassandra is an open source distributed database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. Cassandra offers robust support for clusters spanning multiple datacenters, with asynchronous masterless replication allowing low latency operations for all clients.
that should work
wet breach
only point between SQLite and others is if you need to access the same data from...
size as well
midnight shore
add a +1 to be at the surface
oh ok
wet breach
once the sqlite db hits a certain point you are better off with something like MySQL
round finch
me with sql 
tardy delta
would i do smth like this?
echo basalt
me, making my own format because I don't like well-established solutions
tardy delta
including a static method in its own class
echo basalt
or just using S3 because my customers are crypto millionaires 
vagrant stratus
```
Apache Cassandra is an open source distributed database management system de...
I have to re-look to see what discord uses Cassandra for exactly, if they even said what lmao
echo basalt
discord switched from mongo to cassandra
round finch
guess you could make your own storage data base system
tardy delta
mongo??
round finch
π€
vagrant stratus
Yea, but I don't remember why @echo basalt lol
vagrant stratus
Vishnevskiy, Stanislav (March 29, 2018). "How Discord Stores Billions of Messages". Medium. Archived from the original on June 30, 2020. Retrieved March 28, 2021. Quotes:
"We decided early on to store all chat history forever so users can come back at any time and have their data available on any device.""We setup our code to double read/write to MongoDB and Cassandra." "Since Cassandra is eventually consistent it cannot just delete data immediately."
Ig if I were to re-do the old ChatRoom project, I might as well convert it to that & microservices lmao
wet breach
wouldn't make sense
opal juniper
whats the point
vagrant stratus
Well, even if I didn't do anything with it, still gives me experience for something I don't already use like MySQL or SQLite lmao
wet breach
you change/scale the project as required. You don't start with things that are only optimal under extreme loads first
just because something can handle stuff at the extreme
doesn't mean they are optimal at the other end of the spectrum
wet breach
well I am just pointing out is all
vagrant stratus
Yea it does kek
Also doesn't handle retrieving old messages for when you join a server either lmao
opal juniper
whats the point in persisting the messages then
vagrant stratus
tbf it was a half-assed project just to learn sockets
wet breach
lol
vagrant stratus
At least point doing it any real serious manner's dumb, so any updates would be for a specific thing, e.g. microservices
opal juniper
although i did impl my own QR code generation algorithm
vagrant stratus
For retrieving old messages I can just grab all of them for the specific server lmao
wet breach
one of the major differences between UDP and TCP is that UDP doesn't wait for a response to come back
also UDP packets can arrive out of order, but for retrieving old messages this isn't really an issue
eternal oxide
it's downside is it has no guaranteed order or delivery with no error checking
vagrant stratus
It's a packet based approach using sockets, no idea if it's UDP or TCP lol
wet breach
odds are then it was tcp
white root
Udp can also suffer from packet loss
wet breach
so can TCP
vagrant stratus
eternal oxide
if tcp loses a packet it resends
white root
Exactly
wet breach
which can be bad if you don't implement a check to stop it
white root
So you don't need to worry abt packet loss with TCP
wet breach
you do actually
vagrant stratus
and this is for client side https://github.com/ChatRoomOrg/Client/blob/master/src/main/java/optic_fusion1/client/network/SocketClient.java
wet breach
you don't want something to constantly keep sending something it isn't getting a reply for
white root
you do actually
If a packet isn't received, it just gets retransmitted until it does
And if all else fails, and no response is recieves it just disconnects
eternal oxide
If you are not getting a response with TCP it's yoru code at fault not TCP
wet breach
If a packet isn't received, it just gets retransmitted until it does
And if all...
depends how it is setup
wet breach
If you are not getting a response with TCP it's yoru code at fault not TCP
not necessarily true
white root
(trust me, I manage an anticheat which is entirely packet based)
eternal oxide
TCP is fully error corrected. Worst case is it drops the connection
white root
+1
wet breach
TCP is fully error corrected. Worst case is it drops the connection
yes, and again depends how it is coded
eternal oxide
There is no real way to fail with TCP
wet breach
yes there is
eternal oxide
I've coded both TCP and UDP client/server
vagrant stratus
But yea, I'm sure there's a lot I could do in general to improve it @wet breach but there's just a general lack of caring and no real reason lmao
white root
yes there is
Unless you have sabotaged your tcp driver implementation and are trying to make it fail, it won't
round finch
are hypervisers only for servers?
wet breach
I've coded both TCP and UDP client/server
alright then you should know there is cases where you don't get a response back that has nothing to do with your code because you know routes do go down
round finch
i'm thinking of having one as to switch beteewn os on my Main home pc
eternal oxide
alright then you should know there is cases where you don't get a response back ...
if a route goes down a packet is lost and TCP automatically resends the lost packet
wet breach
packet is lost with no response and yes after a bit of time the packet is re-transmitted
eternal oxide
It is literally impossible to lose a packet if the connection is still up
wet breach
it isn't impossible
eternal oxide
ok
round finch
it is a virutal os?
that what i'm wondering
kinda don't wanna do server stuff
just directly running on my pc
white root
it isn't impossible
I actually can't tell if you're trolling or just don't know what you're talking about
wet breach
I actually can't tell if you're trolling or just don't know what you're talking ...
there is plenty of ways packets can get lost with no response even if a connection is up
eternal oxide
No there is not
white root
No, not really
wet breach
No there is not
go look up internet black holes
eternal oxide
a black hole will take yoru connection down
round finch
lost packets is a real thing
wet breach
it's FULLY error corrected
error correction only works if the other side actually got the packet
eternal oxide
as said, If the connection is still up no packet will ever be lost
glossy venture
packets can get lost but the confirmation signal will ensure that they are re-sent i think
wet breach
as said, If the connection is still up no packet will ever be lost
this is false
eternal oxide
no it's not]
wet breach
you never heard of failing lines? Or faulty lines?
echo basalt
It's weird
white root
You use TCP when you want to guarantee that data will arrive and will arrive correctly, with the drawback of potentially higher latency
And UDP for when latency is most important and every packet doesn't need to be received
I.e. video calls etc
wet breach
error correction wouldn't be a thing if you couldn't lose packets at all
echo basalt
I've been studying TCP packets for my upcoming NMS tutorial
white root
you never heard of failing lines? Or faulty lines?
Exactly the TCP socket would just disconnect
eternal oxide
TCP error correction requires a confirmation is sent. if no confirmation is received the packet is resent. it will timeout eventually and drop the connection
wet breach
no it wouldn't
white root
You wouldn't just loose some data then keep continuing on
echo basalt
Each packet contains a numerical index on its header
And an index of the last received packet
wet breach
You wouldn't just loose some data then keep continuing on
yes you can
white root
Ok you're obv just trolling
round finch
Oh so you run a hyperviser then you connect directly to itself
eternal oxide
yes you can
100% not
white root
Have fun ig
vagrant stratus
I guess if I were to re-do the ChatRoom project, move it to MySQL, microservices, and some half-assed React based UI, yea?
echo basalt
TCP resends missing packets, UDP doesn't care and skips all that overhead
wet breach
100% not
have you ever messed with networking beyond just your home router?
like have you ever messed with switches and border gateways at all?
or setup the actual connections
eternal oxide
have you ever messed with networking beyond just your home router?
Yes I wrote teh Horatius authenticator for Dowty Information Systems back in 1990
near citrus
hello is there any way possible to get what face of the block the player is looking at?
sterile token
That why its recommend to learn Netty instead of swearing with shity raw sockets
wet breach
You clearly haven't <@227800863022907393>
I was a satellite communications specialist in the Army
white root
No wonder you had to use the keyword "was" lol
Clearly aren't too knowledgeable about this lol
echo basalt
I have a very dumbed down explanation of how TCP works
vagrant stratus
I'm not even sure it would be worth learning netty or google protobuf for something like the ChatRoom project lol
eternal oxide
I was a satellite communications specialist in the Army
You didn;t learn enough about protocols then
wet breach
You didn;t learn enough about protocols then
go error correct something you haven't received
sterile token
I'm not even sure it would be worth learning netty or google protobuf for someth...
I mean i prefer using Netty alll life, i still remember all that shity momments swearing with shity java raw sockets
wet breach
according to you error correction means you can correct the data without actually getting the data
eternal oxide
Modems, protocols and security authenticators was part of my job at Dowty
eternal oxide
according to you error correction means you can correct the data without actuall...
Not what I said
vagrant stratus
I mean i prefer using Netty alll life, i still remember all that shity momments ...
I have no problems with sockets personally :p
gray merlin
Does anyone have a good resource that explains pdc?
wet breach
?pdc
echo basalt
near citrus
hello is there any way possible to get what face of the block the player is look...
anyone?
wet breach
Modems, protocols and security authenticators was part of my job at Dowty
then you should know there is ways for the other side to just not get the data you sent or you just never seen what faulty lines do
or how about when someones cable line runs next to powerlines
midnight shore
Hi, i'm trying to use an external source using maven but whenever something calls that class it says this weird error ClassNotFoundException... How can i fix this?
near citrus
ok ...
round finch
bing it 
vagrant stratus
?bing
undone axleBOT
Bing your question before asking it:
https://www.bing.com/
round finch
lol it is real omg XD
tardy delta
Hi, i'm trying to use an external source using maven but whenever something call...
shade it?
eternal oxide
then you should know there is ways for the other side to just not get the data y...
Of course there is and thats why lost data is re-requested. If none is received the connection drops thats why it's a connection based protocol
gray merlin
Oh this is beautiful.
chrome beacon
Hi, i'm trying to use an external source using maven but whenever something call...
Shade it or use the library loader (if you're on a modern version)
undone axleBOT
Yahoo your question before asking it:
https://search.yahoo.com/
midnight shore
Shade it or use the library loader (if you're on a modern version)
how can i do this
echo basalt
PDC like
tardy delta
nbt wrapper or smth
wet breach
Of course there is and thats why lost data is re-requested. If none is received ...
you mean, it sends it again if it doesn't get a response back
chrome beacon
how can i do this
Which one
wet breach
the other side isn't going to re-request anything unless it has at minimum received 1 packet
gray merlin
stores all its data inside an nbt tag
oh man. loved it
eternal oxide
you mean, it sends it again if it doesn't get a response back
actually no, all packets are indexed. if the receiver gets a packet out of order it will request the missing packet.
wet breach
but the point I was stating is that, you can lose packets without a response
you said it is impossible
round finch
imagine storing a whole server in a nbt tag
wet breach
actually no, all packets are indexed. if the receiver gets a packet out of order...
yes, but the receiver still needs 1 packet to know this at minimum
eternal oxide
you said it is impossible
What I said is it's impossible to lose data as TCP is an error corrected connection protocol
echo basalt
I mean
midnight shore
undone axleBOT
Google your question before asking it:
https://www.google.com/
wet breach
it is possible to lose data
echo basalt
technically the connection can drop / timeout
tardy delta
hmm anyone who knows what the dif is between ByteBuffer.allocate(int) and ByteBuffer.allocateDirect(int)?
echo basalt
while the data is being sent
wet breach
if the connection goes down in the middle of transmission the other side will never get the data
eternal oxide
it is possible to lose data
NO it's not, not if the connection is still live
echo basalt
but you can't just... not receive a couple packets and go by unnoticed
The only way to lose data is by dropping the connection
round finch
Google your question before asking it:
<https://www.google.com/>
there is a bunch of tutorials out there
echo basalt
obviously
wet breach
NO it's not, not if the connection is still live
even if the connection is still live it is still possible because you don't control all the servers in the middle
echo basalt
Y'all 2 are just talking on different wavelengths
wet breach
you never know what might change
echo basalt
even if the connection is still live it is still possible because you don't cont...
That's a connection chain
Also open a thread for this :)
eternal oxide
Sorry frost you are plainly and 100% wrong in this. I've been writing code for TCP/UDP for 40+ years.
wet breach
please let me know you can transmit data through a firewall that suddenly decides to filter your packet out
you control all the transmission points correct?
eternal oxide
Yeah, discussion is over, you will not listen
twin venture
i tried , .equals , same code not work
white root
If the packet got filtered out
The sending computer would not recoece an ack for that packet
Then the sending computer would retransmit
If it still doesn't get a response, it'll disconnect