it is
#help-development
shadow zinc
shadow zinc
yep
noble lantern
you cant fake linked spigot names
shadow zinc
me?
noble lantern
You sure?
onyx shale
was odd the naming convention but other than that gud
noble lantern
weird
noble lantern
yeah imma be deadass with u
idk why its saying invalid plugin.yml
oh
api-version
set that field
thats only difference i see rly is ur missing that field
shadow zinc
set it to 1.18?
shadow zinc
yeah, minecrell again
shadow zinc
minecrell
shadow zinc
I'll delete it and try
noble lantern
has the main name and api-version
buoyant viper
gnome de?
shadow zinc
gnome op tbh
noble lantern
sharp flare
Dual boot is great but sometimes its fucked up with raid setups
buoyant viper
wtf i like linux
shadow zinc
can you spot the mistake?
noble lantern
wtf i like linux
i couldnt find a more appropriate gif
had to go with the most sparatic one
noble lantern
sharp flare
Been using arch linux specifically manjaro, i get the freedom windows doesn't allow
shadow zinc
wtf i like linux
what are you using rn?
noble lantern
she uses linux
buoyant viper
much better
sharp flare
same error
Whats the error
shadow zinc
invalid yml
shadow zinc
wait
new error
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: your/package/charts/CustomChart
bstats
seriously
sharp flare
Did u relocated it properly
noble lantern
```org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: you...
make sure bstats is set to compile scope
shadow zinc
can I dump my pom?
noble lantern
?paste
undone axleBOT
noble lantern
interesting
sharp flare
The scope is redundant as long as it is relocated properly
noble lantern
Shouldnt need relocation
sharp flare
It will be compile by default
noble lantern
when no scopes set maven will default on provided iirc but he has a scope set
Maven shade plugin auto shades all compile scopes
But for 1
shadow zinc
thats fine scope is compile anyways
noble lantern
your/package/charts/CustomChart
your/package/charts?
shadow zinc
my charts?
noble lantern
never used bstats so maybe i just dont know how it works
but i would assume a class called CustomChart is trying to get used and isnt there
noble lantern
weird idk why bstats wouldnt just take the Class directly
like registerChart(ThatChart.class)
sharp flare
Eventually my bstats is shaded in and i dont have any scope set in the dependency
Works fine for me
sharp flare
Yeah i thought i was wrong about it but hope that clarifies it
noble lantern
i tend to always set scope with maven whenever i use it
Plus i havent used maven in soooo long
been using gradle for like 4 months now
sharp flare
I'd try gradle soon with my new projects if time permits
undone axleBOT
noble lantern
sharp flare
Yeah i saw the structure once, its too clean
noble lantern
and not to mention import jars is suuuper easy
in maven u gotta install-file which is annoying asf
thats all u do to import jars in gradle
ofc considering you want the entire dir shaded which i do
sharp flare
Yeah maven sucks on that
noble lantern
gradle local include be like
sharp flare
But i tend to avoid local imports if possible
noble lantern
Yeah maven sucks on that
i hate they deprecated systemScope ngl
Yeah i only use local imports for testing
once my libs stable ill slap it on jitpack
sharp flare
Fair
noble lantern
i honestly need to learn how to setup a repo on my vps
i wonder if jfrog has docker images with jfrog on it already
shadow zinc
[18:58:47 ERROR]: Could not load 'plugins/NeoPerformance-1.9.9.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/neomechanical/charts/CustomChart```Does that package path and class 100% exist?
show screenshot of the files if you can
shadow zinc
noble lantern
yeah package path is wrong that you specified for bstats
shadow zinc
do I need src.main.cdsfsdf
sharp flare
Lol bad import
noble lantern
that class should actually exist on your package path of com.neomechanical.neoperformance
and then inside of another package called chart
where there is a class called CustomChart
or
just disable bstats for now if you dont have a chart made
noble lantern
cause you likely know where the chart is if you made one
hmm
whats your bstats code?
thats throwing that
code on theyre website doesnt say anything about sharing a package name or stuff
shadow zinc
do you need anything at ./bstats?
noble lantern
wait is bstats in default spigot now?
theyre example project doesnt even import bstats
shadow zinc
its probably this java metrics = new Metrics(this, pluginId); metrics.addCustomChart(new SimplePie("Language", () -> NeoPerformance.getInstance().getLanguageManager().getLanguage())); metrics.addCustomChart(new SimplePie("halt_at_tps", () -> String.valueOf(getDataManager().getTweakData().getTpsHaltAt())));
shadow zinc
wait is bstats in default spigot now?
is it?
sharp flare
wait is bstats in default spigot now?
Not sure about that
If it would then the docs for bstats should have stated it for a specific api version, etc
sharp flare
It does have a jitpack iirc, its in their docs
shadow zinc
cya
quaint mantle
hi i want to start learning Spigot Plugins does anyone here know where to start and what i should try making first??
worldly star
Sorry if too noob, but I need help with updating my intellij buildTools. I have managed to update the BuildTools.jar but I don't know how to bring it into intellij as I'm trying to update my spigot dependency to 1.19. I keep getting the error that dependency not found. Please can someone help me?
quaint mantle
._. i don't have coding experince besides basic Python Scripting
shadow zinc
._. i don't have coding experince besides basic Python Scripting
I got an idea
YouTube
And Google
ik ik, Im a genius
shadow zinc
https://letmegooglethat.com/?q=Best+way+to+start+coding+plugins+for+minecraft
best website
shadow skiff
used it so much xD
radiant aspen
hi i want to start learning Spigot Plugins does anyone here know where to start ...
Just follow some tutorial series on youtube: https://www.youtube.com/watch?v=tnJZMaoMPhE&list=PLfu_Bpi_zcDNEKmR82hnbv9UxQ16nUBF7
Then find some plugin idea that interestes you and try code that, then get stuck and ask stupid questions on spigot and keep doing that until you have a really buggy plugin held together by bits of string. Then come back to it a few years later and be like wtf is this shit, and recode it it.
rotund pond
Hello everyone !
Do you know how I could create an huge explosion?
CraftWorld#createExplosion() is capped to 10, I need something like 25
shadow zinc
Just follow some tutorial series on youtube: https://www.youtube.com/watch?v=tnJ...
Can we pin that please admins
radiant aspen
Hello everyone !
Do you know how I could create an huge explosion?
CraftWorld#...
it is? where u find that out?
rotund pond
it is? where u find that out?
Not me, a friend tried it
radiant aspen
not a great idea
rotund pond
Why ?
iron glade
Is there an integrated method to get the time a player is on the server?
in the current session
radiant aspen
cuz then u dont get the random explosion, the sounds or the particle effects or the damage or the fire
rotund pond
cuz then u dont get the random explosion, the sounds or the particle effects or ...
Why not ?
I was looking for spigot implementation
radiant aspen
plus calling the createExplosion method calls events meaning it will hook into worldguard and other land protection plugins
radiant aspen
I was thinking about recreating the method by myself
^
rotund pond
Mh
radiant aspen
recreating the method yourself means not using a spigot implementation?
radiant aspen
Anyway, I havent heard anything about it being capped at 10
try World#createExplosion(x,y,z,100,true)
rotund pond
Here is an example:
player.getWorld().createExplosion(loc.getX(), loc.getY(), loc.getZ(), 100F, false, true)
rotund pond
Is that 100 blocks ? :x
radiant aspen
100 doesnt equal 100 blocks
rotund pond
Ah
radiant aspen
its power
noble lantern
^^
noble lantern
mans is doing over 20x normal tnt
shadow skiff
xD
noble lantern
honestly tho
rotund pond
Oh, I see so this explosion will just do as much as 25 TNT, but all TNTs are on the same block
noble lantern
it may have a limit just not publicly documented
noble lantern
Oh, I see so this explosion will just do as much as 25 TNT, but all TNTs are on ...
yes
but
rotund pond
Ah f....
radiant aspen
I mean try set it to like 500 or smthn, see if its a bigger hole
radiant aspen
it may have a limit just not publicly documented
doubt, why would they not document that, and ive also heard no mention of a limit
radiant aspen
what are you looking for?
rotund pond
I would like to create a huge explosion, not an explosion with huge damages on a single block xD
Something like a 20 blocks explosion
radiant aspen
well
noble lantern
create a grid of tnt blocks
noble lantern
doubt, why would they not document that, and ive also heard no mention of a limi...
True true
radiant aspen
u could do smthn like
for(int x = 0; x < 100; x+=4){
for(int y = 0; y < 100; y+=4){
for(int z = 0; z < 100; z+=4){
world.createExplosion(x,y,z,4);
}
}
}
which will create tnt sized explosions in a 100x100x100 grid, spaced out 4 blocks each tho
lag warning tho 👀
@rotund pond
rotund pond
Well, this should be a bit huge but thank you xD
smoky oak
is this the fastest way to iterate a double nested array?
for(Object[] o1 : o0){
for(Object o2 : o1){
//do something
}
}
We're going to try somethings
noble lantern
well
actually
im not sure if using index access is faster
eg for (int x = 0; x <= (o0.length - 1); x++)
smoky oak
might be actually. I do have the sizes of the array, and it shouldnt contain null entries
radiant aspen
is this the fastest way to iterate a double nested array?
```java
for(Object[] ...
I mean.... theres probabbly faster ways, but its negligable, your probabbly talking a difference of in the milliseconds. If your looking at optimisations you will usually do those on bigger complicated stuff not looping
noble lantern
^
smoky oak
eh fair point
smoky oak
im just curious
radiant aspen
i would just do my loops like they are in that code
^
always a tradeoff between optimisation and readability
radiant aspen
Well, this should be a bit huge but thank you xD
well, just do it in a 10x10 then 
radiant aspen
eg lambdas are slightly slower iirc
o rly?
noble lantern
its either faster or slow but its so small a user wont notice it or dev
lemme find the article
rotund pond
well, just do it in a 10x10 then <:PanShrug:580969840202874900>
Yeah Ik dw :p
maiden briar
TreeMap<Double, UUID>. If 2 players have the exact same Double as key, what will the TreeMap do?
radiant aspen
are you sure you dont have this the wrong way around?
shouldnt UUID be the key and Double the value?
maiden briar
I want to make a top
maiden briar
shouldnt UUID be the key and Double the value?
But it only sorts by key
chrome beacon
Sort things yourself
smoky oak
it returns the uuid registered last iirc
noble lantern
Not the one i rly wanted but it explains it partially
radiant aspen
if you want to sort by value, you could turn into an array and sort the array
maiden briar
I have an uuid associated with a score
maiden briar
And I want to get the UUID's with the 5 highest score
noble lantern
https://stackoverflow.com/questions/31675319/which-would-be-better-in-terms-of-p...
Mainly its stuff like this that make lambdas slower here it is
radiant aspen
and then u can do smthn like Map.values().sort()
maiden briar
so you need a Map<UUID, Double>
Yes, but how can I get the UUID's associated?
Because you cannot get by value in Map
worldly star
Could someone please help me with updating my dependency to 1.19... I'm not that well versed and I really need some help
maiden briar
Thanks
noble lantern
https://www.delftstack.com/howto/java/how-to-sort-a-map-by-value-in-java/
this thats useful
thanks
shit*
radiant aspen
basically your getting the entrySet of the map, and then sorting by the value
noble lantern
didnt know sort was a thing
i was gonna loop through that values orgnizing myself once i made my own leaderboards 💀
brave sparrow
It’s important to note that in those cases you aren’t sorting the map, you’re copying the data to a new structure and sorting the copied data
radiant aspen
List<Map.Entry<UUID, Double>> sorted = map.entrySet().stream().sorted(Map.Entry.comparingByValue()).collect(Collectors.toList());
probabbly the cleanest way
radiant aspen
It’s important to note that in those cases you aren’t sorting the map, you’re co...
yeah, u cant sort a map tho
ivory sleet
```java
List<Map.Entry<UUID, Double>> sorted = map.entrySet().stream().sorted(Ma...
Probably most expensive also
brave sparrow
Depends on the map implementation
radiant aspen
Probably most expensive also
pfft
brave sparrow
LinkedHashMap can be sorted
radiant aspen
LinkedHashMap can be sorted
yeah, but thats nerd shit
ivory sleet
^ as well as tree map
timid parrot
Is there a way to control player like you are the player
brave sparrow
^ as well as tree map
Yes!
radiant aspen
Is there a way to control player like you are the player
Probabbly but it would looks super hacky, and not very clean
brave sparrow
Is there a way to control player like you are the player
Listen to all of the controller’s movements and teleport the controlled player accordingly
As well as make the controller invisible
But it will look awful to the player being controlled
Actually
You know what
Here’s how you do it:
Disguise the controller as the controlled to every other player
noble lantern
yeah, but thats nerd shit
"Yeah thats nerd shit"
in a java development channel 
brave sparrow
Send the spectate packet to the controlled player to make them spectate the controller
Boom
For bonus points you can send the controlled player a disguise changing the controller’s skin to theirs in case they F5
timid parrot
But it will look awful to the player being controlled
Because i wanted to do something like in this video but with snowballs. If you throw a snowball on a player you can controll him then
timid parrot
https://www.spigotmc.org/resources/controlplayer-1-8-8-1-19.102987/
yeah but i want it with snowballs XD
radiant aspen
Well, looks like its opensourced: https://github.com/RayzsYT/ControlPlayer/tree/main
plus it even has an api
Oh, hell naw
this some messy code
ivory sleet
Holy
brave sparrow
Yeah the way they did it just doesn’t seem as nice as my elegant solution lol
radiant aspen
Mr AlexTheCoder, are you still working at mineplex?
is mineplex even a thing anymore?
brave sparrow
Yes and yes
crystal palm
just a quick question. probably stupid but oh well
should i use PostLoginEvent or ServerConnectEvent? I want to kick the player if specific conditions are met/not met
ivory sleet
What type of conditions?
crystal palm
if username starts with something
ivory sleet
PostLoginEvent might suffice
crystal palm
alright thanks :^)
ivory sleet
You can use PreLoginEvent
the username supposedly is disclosed already by the time that event invokes
crystal palm
buuutt postloginevent should be fine too, right? or does it send the player to the backend before too? :P
ivory sleet
Im not sure
crystal palm
ill test it rq
ivory sleet
But I think backend’s AsyncPlayerPreLoginEvent will fire before
noble lantern
why not just use that event ^
brave sparrow
They’re on bungee
fallow valley
public class VillagerCured implements Listener {
private final Main main;
public VillagerCured(Main main) {
this.main = main;
}
public int potionDuration = main.getConfig().getInt("discountDuration");
...
gives me "variable main might not have been initialized" regarding the "main.getConfig" portion?
any ideas
ivory sleet
Yes
the code public VillagerCured(Main main){…} will run after potionDuration = …;
so at the time when the variable potionDuration gets initialized the value will of the variable main remains null
quiet ice
eg for (int x = 0; x <= (o0.length - 1); x++)
that code would be slower without JIT
ivory sleet
Move the initialization part of the variable potionDuration to inside and after the this.main = main part
noble lantern
that code would be slower without JIT
in monkey terms
fallow valley
Move the initialization part of the variable potionDuration to inside and after ...
OH right thanks
noble lantern
whats JIT
quiet ice
for (var x : array)
produces
for (int z = ; z < array.length; z++) { var x = array[z];
so - pretty much the same otherwise
ivory sleet
Just in time burchard
noble lantern
ahh
quiet ice
The actual compiler in the java ecosystem
earnest forum
jit trippin
ivory sleet
Java is both interpreted and compiled interestingly enough
noble lantern
i normally dont tend to stress over small things like that because you just barely notice the difference
unless you forget to call .join on a CompletableFuture
ivory sleet
Yeah lol
brave sparrow
The JIT is incredible these days
fallow valley
Move the initialization part of the variable potionDuration to inside and after ...
so
public VillagerCured(Main main) {
this.main = main;
int potionDuration = main.getConfig().getInt("discountDuration");
}
eternal oxide
int potionDuration;
public VillagerCured(Main main) {
this.main = main;
potionDuration = main.getConfig().getInt("discountDuration");
}```You made potionDuration to whats called a locally scoped variable
fallow valley
sorry lol
eternal oxide
Teacher Conclure today 🙂
ivory sleet
fallow valley
You made potionDuration to whats called a locally scoped variable
Oh so it's like how I use main before using it in this.main = main?
eternal oxide
now @fallow valley, write 100 lines of I will not use uninitialized variables.
ivory sleet
Yeah
fallow valley
now <@922299510850486293>, write 100 lines of I will not use uninitialized varia...
for(int i = 0; i < 100; ++i)
System.out.println("I will not use uninitialized variables.");
Nice, you go out and play now
fallow valley
Thank you sir.
fallow valley
I promise not to do it again!
ornate mantle
deaths:
1:
- ["speed", 12]
- ["haste", 10]
this is in my configuration
right now it only has 2 effects
the number of effects can be modified
how do i get each effect
public Map<PotionEffectType, Integer> getEffectsFor(int deathNumero){
potionEffectMap = new HashMap<>();
this.config.getList("deaths." + deathNumero).forEach(effectList -> {
potionEffectMap.put(
PotionEffectType.getByName(
String.valueOf(
((List<Object>) effectList).get(0)
)
),
(Integer) ((List<Object>) effectList).get(1)
);
});
return potionEffectMap;
}```this is my current method
ivory sleet
class Example{
static final int C = 19283; //global constant
// static variable
// global variable
// global field
// static field
// mono state
static Object o = new Object();
//instance variable
//field
//instance field
//prototype variable
//prototype field
Object h2o = new Object();
void epic(
//parameter
//parameter variable
double o
){
//local variable
int epic = 459;
}
}```
@fallow valleyas you can see it doesnt work 💀
ivory sleet
For any future references
lost matrix
```java
class Example{
static final int C = 19283; //global constant
// sta...
Calling a package private variable "global" 
ornate mantle
lemme get the error once more
lost matrix
```yaml
deaths:
1:
- ["speed", 12]
- ["haste", 10]
```
this is in my c...
Again: Dont use mixed type lists. You will only have problems with that.
ornate mantle
Again: Dont use mixed type lists. You will only have problems with that.
i tried your way
it only confused me more
ivory sleet
But with restricted access and visbility Ig
pliant plover
Is it possible to make a queue for Bedwars with a Hashmap?
lost matrix
Is it possible to make a queue for Bedwars with a Hashmap?
Yes
frosty tinsel
Is it possible to make a queue for Bedwars with a Hashmap?
Depends
More likely not
ivory sleet
Myes but there are more relevant data structures you could opt in for
lost matrix
Whatever that means. You can surely hack it.
tardy delta
hashmap not sorted
ivory sleet
It is sorted
frosty tinsel
hashmap not sorted
+1
lost matrix
LinkedHashMap
ivory sleet
Just not by any significant means
tardy delta
uh uh
frosty tinsel
Just use Queue
lost matrix
^
tardy delta
forgot about linkedhashmap one
pliant plover
I want it just to pick a random PLayer, teleport it to the teambase it belongs, and then remove this Player
ivory sleet
The order of a hashmap is conceptually useless 99% of the times
frosty tinsel
Is it possible to make a queue for Bedwars with a Hashmap?
Queue is an actual Java data structure, so you can use that
pliant plover
I want it just to pick a random PLayer, teleport it to the teambase it belongs, ...
And then repeat until everyone is in a team(which is not the same)
frosty tinsel
The order of a hashmap is conceptually useless 99% of the times
How do you get the order then?
ivory sleet
Wym get order?
tardy delta
iterator::next
lost matrix
I want it just to pick a random PLayer, teleport it to the teambase it belongs, ...
I would still just use a Queue
pliant plover
how do I use queue?
pliant plover
I've never heard of it xD
lost matrix
LinkedList is poop.
quiet ice
Just use Queue
I'd use Deque instead
frosty tinsel
iterator::next
Iterable ≠ ordered
quiet ice
ArrayDeque or LinkedList probably
Not sure whether the former exists
ivory sleet
LinkedList is poop.
remove O(1) :3 iirc
lost matrix
I'd use Deque instead
He doesnt really need both ends so it wouldnt matter
tardy delta
Iterable ≠ ordered
not sure if its possible to get the order then
lost matrix
remove O(1) :3 iirc
Yeah while iterating. But an ArrayDeque just performs better when used as a queue
ivory sleet
Indeed
tardy delta
arraydeque backed by an array? 🙂
ivory sleet
Iterable ≠ ordered
Iterable does insist on some type of order
since it provides an Iterator with some notion of order
lost matrix
I've never heard of it xD
Use a Stack and just pop players from it until its empty
frosty tinsel
Iterable does insist on some type of order
Kinda yea
ivory sleet
Then whether that order is useful is another debate but ye
frosty tinsel
Then whether that order is useful is another debate but ye
Well now it's more about what "order" is
ivory sleet
Yup
frosty tinsel
Whether you mean a meaningful order
ivory sleet
Precisely
pliant plover
Use a Stack and just pop players from it until its empty
Stack test = new Stack(); <- Like that?
ivory sleet
I mean impertinently HashMap has a pretty useless order
lost matrix
Stack test = new Stack(); <- Like that?
Stack is generic. So you have to infer type arguments still.
quaint mantle
@EventHandler
public ShapedRecipe PotionRrr() {
ItemStack Potion = new ItemStack(Material.DIAMOND_BOOTS);
PotionMeta meta = Potion.getItemMeta();
ItemMeta meta1 = Potion.getItemMeta();
meta1.setDisplayName(ChatColor.GREEN + "Froggy Boots");
meta.addCustomEffect(new PotionEffect(PotionEffectType.JUMP, 1200, 20, true, true, true), true);
Potion.setItemMeta(meta1);
Potion.setItemMeta(meta);
ShapedRecipe recipe = new ShapedRecipe(new NamespacedKey(this, "FROGGY_BOOTS"), Potion);
recipe.shape("NNN","N N","NNN");
recipe.setIngredient('N', Material.NETHERITE_INGOT);
return recipe;
I'm trying to Make PotionMeta but the PotionMeta meta = Potion.getItemMeta(); Showing red line how can i fix ?
lost matrix
@EventHandler
public ShapedRecipe PotionRrr() {
ItemStack Potion = n...
Thats not how you use event handler methods.
You need exactly one argument of type Event
frosty tinsel
Use a Stack and just pop players from it until its empty
Why Stack over Queue?
tardy delta
uhh method naming conventions are gone now?
quaint mantle
Thats not how you use event handler methods.
wdym ?
ivory sleet
FIFO vs LIFO :0
quaint mantle
how can i add the PotionMeta
frosty tinsel
Stack has different behaviour
lost matrix
Why Stack over Queue?
Doesnt matter. Why not.
ivory sleet
LinkedList… runs
pliant plover
Stack is generic. So you have to infer type arguments still.
what do I have to add?
lost matrix
He wants random elements. So if he scrambles a list and puts it in a stack or queue then there is no difference between lifo and fifo
frosty tinsel
Ah
lost matrix
what do I have to add?
type arguments
timid parrot
Well, looks like its opensourced: https://github.com/RayzsYT/ControlPlayer/tree/...
But i cant find the place where i can add my code with tthe snowballs
quaint mantle
I'm trying to Make PotionMeta but the PotionMeta meta = Potion.getItemMeta(); Showing red line how can i fix ? uhm how can i fix
lost matrix
@EventHandler
public ShapedRecipe PotionRrr() {
ItemStack Potion = n...
You are overwriting meta1 with meta. Makes no sense.
tardy delta
variable name start with a lowercase character smh
quaint mantle
You are overwriting meta1 with meta. Makes no sense.
only 1 meta ?
tardy delta
and method names too 😢
lost matrix
only 1 meta ?
Yes use only one meta and add your changes there.
quaint mantle
Yes use only one meta and add your changes there.
ok
pliant plover
type arguments
I dont know which, I'm pretty much trash at programming xD
lost matrix
what do I have to add?
Stack<Player> theLot = new Stack<>();
ok, thanks
lost matrix
UUID is preferred but lets keep it simple
quaint mantle
Now my prob is the PotionMeta meta = Potion.getItemMeta(); showing red line how can i fix
ivory sleet
<ThingsInsideTheseDiamondBracketsAreTypeArguments> and they are usually as in always the names of classes
quaint mantle
i removed the meta1
lost matrix
Now my prob is the **PotionMeta meta = Potion.getItemMeta();** showing red line ...
- Learning the basics of java
- Cast
noble lantern
quaint mantle
https://media.discordapp.net/attachments/694661573125472256/998143126373941248/6...
Nice
ivory sleet
?learnjava :3
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.
noble lantern
sorry
pliant plover
```java
Stack<Player> theLot = new Stack<>();
```
And I add Players with theLot.add(Player)?
frosty tinsel
?learnjava :3
Ohyeah
noble lantern
i just didnt get to use that
noble lantern
i made that meme today i had to use it, but defo look at links conclure sent
frosty tinsel
Where can I find all these commands?
lost matrix
Where can I find all these commands?
You gradually fetch them here and there when they are used.
ornate mantle
- effect: speed
multiplier: 12
``` this is a LinkedHashMap rightuhm
eternal oxide
No
noble lantern
idk what that is
timid parrot
Well, looks like its opensourced: https://github.com/RayzsYT/ControlPlayer/tree/...
But i cant find the place where i can add my code with tthe snowballs
noble lantern
a yaml exception
lost matrix
```yaml
- effect: speed
multiplier: 12
``` this is a LinkedHashMap right
No this is a list of objects as far as yaml is concerned
ivory sleet
Where can I find all these commands?
I will post them in #spigotcraft
ornate mantle
its a linkedhashmap as far as my java errors are concerned
lost matrix
-
effect: speed
multiplier: 12
doesnt that do the same thing
tardy delta
looks cursed no
ornate mantle
really does
pliant plover
```java
Stack<Player> theLot = new Stack<>();
```
how can I pick a random Player out of the List?
eternal oxide
Which I believe is backed by a LinkedHashMap
ornate mantle
therefore its a linkedhashmap?
lost matrix
how can I pick a random Player out of the List?
One moment
eternal oxide
no
pliant plover
ok
noble lantern
how can I pick a random Player out of the List?
use Random#nextInt(int) with a bound argument of the list size - 1
ornate mantle
but its stored as it
tardy delta
Stack has a get method
eternal oxide
The Config is a LinkedHashMap
your Objects are stored IN teh configs backing LinkedHashMap
noble lantern
use Random#nextInt(int) with a bound argument of the list size - 1
smiles gonna write an example doing kinda what i said likely
pliant plover
use Random#nextInt(int) with a bound argument of the list size - 1
theLot.add(all)
;Player ranplayer[] = {all.getPlayer()};
int randomPlayer = rand.nextInt(ranplayer.length);
Player ranpl = ranplayer[randomPlayer];
this is how I did it before
tardy delta
huh i believed not
noble lantern
it will go from 0 - length
tardy delta
cuz random.nextInt(0, 5) goes from 0 to 4 right?
ivory sleet
Yeah
tardy delta
noob
ivory sleet
By convention most stuff is inclusive exclusive
tardy delta
you confused me
noble lantern
you confused me
thats my goal
ivory sleet
Lol
noble lantern
imagine being able to write a async websocket
tardy delta
ah :'(
eternal oxide
lol
pliant plover
length count starts at 1
thanks
noble lantern
carrotus bro ignore what i said and what fourteen said instead
my brain cell count is low today its 3am
tardy delta
1 pm here and my brain aint working properly tho
lost matrix
thanks
public Deque<Player> createRandomOnlinePlayerQueue() {
List<Player> list = new ArrayList<>(Bukkit.getOnlinePlayers());
Collections.shuffle(list);
return new ArrayDeque<>(list);
}
Something like this
bit expensive but you wont call it often
pliant plover
Ok, Thanks
noble lantern
interesting
crystal palm
Im not sure
i didnt realize i had to cancel the event and not just disconnect the player lol. had me bashing my head on the table for a while. thnx bud
noble lantern
Collections.shuffle
pliant plover
does this already remove the People from the queue?
timid parrot
how can i do crafting recipes with custom items
noble lantern
How resource intensive is that method smile?
say for like a list of 200 strings at 16 bytes each
ivory sleet
Its like O(2^(-1)n) iirc
tardy delta
im wondering if iterator::next on an arraylist is going to give a random element or not
lost matrix
does this already remove the People from the queue?
No? This gives you a filled queue. You still need to poll() until the queue is empty.
noble lantern
Its like O(2^(-1)n) iirc
is that like a real expression for it
ivory sleet
n/2
pliant plover
No? This gives you a filled queue. You still need to poll() until the queue is e...
ok, thanks
ivory sleet
Sorry my math head is a bit dodo
tardy delta
maths lmao
ivory sleet
🥲
next fossil
How will I be able to reset a world with different seeds everytime I restart the server?
lost matrix
Its like O(2^(-1)n) iirc
You mean O(2^(-n)) ?
tardy delta
2 ^ -1 -> 1/2^1 smh
noble lantern
wtf is this equation for
tardy delta
google big o notation
next fossil
There's only a world.getWorldInfo().getSeed() but how would I set it for the server.properties to reset the world with a new seed?
ivory sleet
You mean O(2^(-n)) ?
Maybe, is that the right complexity?
eternal oxide
How will I be able to reset a world with different seeds everytime I restart the...
In onLoad of yoru main JavaPlugin check Bukkit.getWorlds() == 0, then delete teh world you want to regenerate.
lost matrix
Maybe, is that the right complexity?
No idea. Would have to look up which algo is used
next fossil
In onLoad of yoru main JavaPlugin check Bukkit.getWorlds() == 0, then delete teh...
But it's the main world
It can't unload the main world
noble lantern
oh so its like a calculation oh how large input size can be before it starts slowing down
ie its a input/slowdown graph in a sense
lost matrix
wtf is this equation for
https://www.spigotmc.org/threads/guide-beginners-guide-on-improving-your-codes-performance.396161/
In section 3 i explained a bit how big O works.
eternal oxide
But it's the main world
Yes, thats why you do it in onLoad before the worlds are loaded
You delete it as teh server is starting as you can;t unload it
noble lantern
https://www.spigotmc.org/threads/guide-beginners-guide-on-improving-your-codes-p...
wow thats crazy didnt know you could calculate speed for things in java before testing them
lost matrix
https://www.spigotmc.org/threads/guide-beginners-guide-on-improving-your-codes-p...
Oh god i actually find this a bit cringe now. Eclipse screenshots. I had like 10 months of experience back then.
next fossil
Even so, the seed will still be the same
noble lantern
tfff
eternal oxide
Not if there is no seed set
tardy delta
omg how much ive seen that
noble lantern
you doing that at 10 months??
eternal oxide
it picks a random seed
noble lantern
omg how much ive seen that
HAHAHA
im convinced smile isnt human
i think hes some machine learning ai that learns java off spigot code
mans is cracked at programming
ashen quest
How do I give an Entity a potion effect, i checked for potion methods but didnt find any
lost matrix
I would not create one task per arrow.
Create one runnable that maintains a collection of arrows and spawns particles for them.
On shoot -> add to collection
On hit -> remove from collection
ashen quest
omg how much ive seen that
the only thing wrong here is getting the player 20 times?
noble lantern
no the UUID
you would make that UUID a local variable
so your not constantly calling getUniqueId
frosty tinsel
How do I give an `Entity` a potion effect, i checked for potion methods but didn...
There should be something like add potion effect
noble lantern
however for that specific method speed wise it doesnt matter, since that is cached already i beileve
but design wise it makes a big difference
and sometimes some gets do process more heavy code
ashen quest
There should be something like add potion effect
nope it isnt there
ivory sleet
Yeah explanatory variables superior
noble lantern
like getOfflinePlayer
frosty tinsel
nope it isnt there
noble lantern
100% wanna cache that bullcrap class
tardy delta
you would make that UUID a local variable
oh no i should cache plugin.userrepo :(((
noble lantern
oh no i should cache plugin.userrepo :(((
i would
ivory sleet
I mean the cons of using many local variables is that they do take some space
noble lantern
UserRepo repo = plugin.getUserRepository();
ivory sleet
Like you push the variable onto the thread stack
ashen quest
https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/entity/LivingEntity.html#add...
Oh thats for Living Entity
ivory sleet
But who cares
ashen quest
not Entity
noble lantern
yeah but once the calling method is over its gone or cleared by GC
ivory sleet
Readability >>>
ashen quest
not Entity
is casting safe here
lost matrix
I mean the cons of using many local variables is that they do take some space
Eh those few bytes on the stack
frosty tinsel
Why you want to add a potion effect to an Entity
ivory sleet
Eh those few bytes on the stack
Yeah maube gets a little bit cramped in the stack but thats just cozy
noble lantern
ill just check if its a living entity and cast
thats how its supposed to be done
Only LivingEntity can have potion effects
unless
you use nms
frosty tinsel
ill just check if its a living entity and cast
Well that's how you should do it
I don't really know the context
I thought you meant Entity
noble lantern
Entity can be a ItemFrame, which cant have potion effects
hence why it isnt a thing
frosty tinsel
Spigot should add the same reactions that or on the forums to the discord (eg. agree, like, winner)
ashen quest
everyone, tanks youz
noble lantern
Spigot should add the same reactions that or on the forums to the discord (eg. a...
like that?
ivory sleet
Spigot should add the same reactions that or on the forums to the discord (eg. a...
Definitely
frosty tinsel
like that?
Ohyeah
pliant plover
```java
public Deque<Player> createRandomOnlinePlayerQueue() {
List<Player...
I always get an error when Putting this into My code, when I put this before the Override I get an error for Override and "onCommand" but I have to put the braclets around the whole code so I can use the list. And when I put this after the Override where I need it, it also has an error
pliant plover
I have
ivory sleet
i need to make more memes for this channel
This one still hits hard
tardy delta
that last one wtf
noble lantern
i cant stop laughing at this
pliant plover
I think Imma create a thread to send My code, because its hard to explain
noble lantern
i thought he was gona say new thread in his code
and i was thinking how is that gonna help
frosty tinsel
everyone, tanks youz
Btw I've noticed, that on some older posts, there are also disagree reactions, why was it removed?
tardy delta
and use code blocks lol
yoro code
noble lantern
Btw I've noticed, that on some older posts, there are also `disagree` reactions,...
ppl got sensisitve
"Waah i got ratiod"
ivory sleet
and i was thinking how is that gonna help
You’re so mixed up in multithreading put simply 
noble lantern
"remove dislike"
noble lantern
You’re so mixed up in multithreading put simply <a:2pepeclap:875911177912332328>
Its soooo good
frosty tinsel
Ugh
noble lantern
my server handles so many requests
ivory sleet
Btw I've noticed, that on some older posts, there are also `disagree` reactions,...
People would use it purposefully to be douchés on the forums
ashen quest
Btw I've noticed, that on some older posts, there are also `disagree` reactions,...
no idea
noble lantern
pliant plover
Is there any rule for sending .txt files? because I cant really send My code because its too long
noble lantern
however idk why it keeps saying they execute on thread 15
tardy delta
?paste
undone axleBOT
ivory sleet
however idk why it keeps saying they execute on thread 15
May I ask
Are use using the worker pool to accept sockets?
noble lantern
Are use using the worker pool to accept sockets?
Yes
noble lantern
i assume because the requests execute so fast that the thread is available immediantly?
and it just reuses it?
ivory sleet
You might wanna use another thread pool if your socket connections are alive for a longer period of time
Yes
That partly
noble lantern
cause thoe requests do execute in about .001, but theres other factors so the delay is longer
pliant plover
Idk
noble lantern
but actual code fires isntantly almost
ivory sleet
But anyway java sucks when it comes to the socket part
pliant plover
?paste
undone axleBOT
ivory sleet
Cause usually
noble lantern
You might wanna use another thread pool if your socket connections are alive for...
well the actual connections arent async
ivory sleet
We want a thread per socket
noble lantern
here let me send my code
ivory sleet
Or sth
noble lantern
?paste
undone axleBOT
noble lantern
https://paste.md-5.net/lewazijaca.java
The actual WebSocketServer is ran in a new Thread and all actions of the websocket get handled in futures
ignore my hashmap of conenctedClients
frosty tinsel
People would use it purposefully to be douchés on the forums
Was there also like a negative ratings on people profiles?
noble lantern
it was before you taught me atomic stuff
ivory sleet
Ah
frosty tinsel
Interesting
ivory sleet
Btw
Burchard
Netty might be what you wanna use
Since it can handle like millions of requests
ashen quest
so i want to get the name of a block on BlockPlaceEvent
basically getting the itemstack of that block
how do I exactly do that?
noble lantern
Since it can handle like millions of requests
i heard nettys hard
ashen quest
i wonder when ill change it
never
noble lantern
plus would i need to rewrite my entire socket logic?
noble lantern
Cause what i have rn is so nice with json pojo schema parsing
ivory sleet
Fair
noble lantern
ignore the code, but i made a Bukkit style action handler where the code inside here will be ran async
and the second argument is any pojo class you want to accept
Itll turn the class into a json schema, validate it and then initialize it to pass to that, its pretty cool i love it xD
my old server code was horrendous
ivory sleet
Nice (:
noble lantern
?paste
undone axleBOT
noble lantern
how do I make a tnt not break stuff and not damage a player?
there is an event for when tnt explodes iirc
ashen quest
ooh
noble lantern
Nice (:
https://paste.md-5.net/xikaxuwiyi.cpp
This used to be the old socket logic
💀
ivory sleet
Oh god
ashen quest
btw there isnt a method for that i think
ivory sleet
Nope sadly
ivory sleet
I wish
noble lantern
google it is
dang BlockExplodeEvent wont tell you if it was tnt
unless
blockList contained the primed tnt that was exploded maybe
and you can check the location against that, then cancel event
eternal oxide
TnT when it explodes is an Entity
eternal oxide
Blocks exploding are things like Beds in teh nether
dire marsh
entityexplodevent exists no?
noble lantern
entityexplodevent exists no?
lemme see
dire marsh
noble lantern
that might work
but
actually nvm
wait if you cancelled that
wouldnt the tnt get locked at primed state
🤔
dire marsh
pretty sure it just disappears
but you can clear the block list if you still want it to explode
ashen quest
now how do I detect from BlockExplodeEvent if that block is a primed tnt i spawned from my code
noble lantern
just would have to handle entity damage then
use EntityExplodeEvent
PrimedTnt is an entity
ashen quest
so how do i detect if thats the PrimedTNT i spawned
rare flicker
I'm having an issue with some custom crafting with some custom items :
The custom items are implemented by adding a CustomModelData to them, and are recognized the same way
but that means they are still recognized as normal items for the server
eg : a new ingot that uses the iron ingot as a base will be usable in crafting involving iron, and we don't want that for custom items
My solution was to put every custom recipe in a list, and upon crafting, checking if the recipes in the event matches one of the custom recipes, if not, that means the recipe is vanilla and thus, should not contain any custom item
I then cycle through the items in the crafting matrix and if one of them is a custom item, I cancel the event
But the problem is that the recipe fired in the event seems to not match any of the stored custom recipes.
TL;DR Cannot get #recipe.equals(Recipe other) to work
✅ Solved : Cast recipe to ShapelessRecipe or ShapedRecipe and check if the NameSpacedKey matches
dire marsh
so how do i detect if thats the PrimedTNT i spawned
check if the entity id is equal to the tnt entity id you spawned
ashen quest
Oh so now this is where i store all of em ids in an array
vapid valley
Hi I'm tryna hide nametags in my spigot server cz im tryna do a pvp thing with my friends but i can't do anythin. I've tried the team method and don't wanna use the scoreboard methods it seems complicated
rare flicker
Hi I'm tryna hide nametags in my spigot server cz im tryna do a pvp thing with m...
teams works though
without any plugins even
vapid valley
teams works though
nah i don't i've tried setting visibilty to never and hideforotherteams only
both don't work
rare flicker
lemme test a few things brb
vapid valley
sn
vapid valley
lemme test a few things brb
do u want a list of the plugins im runnin?
btw im runnin 1.19
rare flicker
i'm gonna test with vanilla teams for now
vapid valley
i'm gonna test with vanilla teams for now
klm
rare flicker
done
rare flicker
yup
vapid valley
u can set it but others can still see it no?
rare flicker
as long as they are in the NoNameTeam no
vapid valley
but I wanna hide it from other teams
rare flicker
then have both set to "hideForOtherTeam"
vapid valley
nd i'm not runnin on a vanilla server
rare flicker
lemme test that
vapid valley
klm
rare flicker
doesnt matter, you still have the vanilla features
vapid valley
I've tried all of them but no matter what the other team can see my nametag and I can see theirs
could it be my plugins then?
rare flicker
i mean, it could if one of them uses teams
vapid valley
lemme send u a ss of it
rare flicker
afaik you cant be in two teams at once
rare flicker
I'm having an issue with some custom crafting with some custom items :
The cus...
bump
vapid valley
afaik you cant be in two teams at once
oh nah i'm doin seperate teams
but there is this ghost team that appears, says it doesnt exist but its there and i can't remove it either
rare flicker
not what i meant
let's say plugin X is using teams for specific features and adds you to one of it's system teams, it would remove you from the team where nametags are hidden
iron glade
Does anyone here know if it's possible to keep those 2 lines in one line instead of splitting this text here into a solo line?
rare flicker
Does anyone here know if it's possible to keep those 2 lines ```in one line inst...
wdym by "keeping them 2 lines"?
smth like this?
first line \n second line
vapid valley
jus realised i cant send the ss of my plugins here
iron glade
that the unformatted text and the formatted text stay in the same line
iron glade
yes
rare flicker
`like this would render` like this
its not exactly the same
but its the cloest there is
iron glade
test
rare flicker
this
is meant to be used to write block text like code
iron glade
So just a single `instead of 3?
rare flicker
ye
vapid valley
@rare flicker issih klm if i send u a ss of my plugins to ur pm
rare flicker
but mainly have coloration
public static void main(String[] args){
}
idk every plugin so i don't think i'll be able to do much
vapid valley
wait nvm I think ik which plugin is causin the issue
ashen quest
just would have to handle entity damage then
cancelling this would not trigger the explode animation?
i kinda want that animation to show up
but without damage to players/blocks
ashen quest
ooo
ashen quest
I dont see any thing related to EXPLOSION in Sound
ashen quest
Oo
rare flicker
Has anyone ever played around with custom recipes involving custom items?
ashen quest
Yea, I just use the custom item itemstack as the result in Crafting event
ivory sleet
Yes
noble lantern
Added Thread.sleep() and it bricks the request line
rare flicker
Yea, I just use the custom item itemstack as the result in Crafting event
and with ShapedRecipes ?
noble lantern
Even though each requests handles in a future
ivory sleet
Wait send code
ashen quest
and with ShapedRecipes ?
never worked with shaped recipes, but you can use something with the NameSpacedKey thing to register your recipe
noble lantern
?paste
undone axleBOT
rare flicker
aw..
i have it working and everything
but now i'm trying to cancel custom items from being usable in vanilla recipes
ashen quest
ShapedRecipe expBottle = new ShapedRecipe(dingusItemStack);
but i cant find a way to recognize a recipe as custom or vanilla
noble lantern
https://paste.md-5.net/feqahoqope.java
Executor is:
Executors.newWorkStealingPool(Runtime.getRuntime().availableProcessors() * 8);
annd runAsync is just a wrap around of CompletableFuture.runAsync(Runnable).join();
public static void runAsync(Runnable runnable, Executor executor) {
CompletableFuture.runAsync(runnable, executor).join();
}
private Recipe maillechorts_rod() {
ShapedRecipe recipe = DEItem.MAILLECHORTS_ROD.getShapedRecipe();
recipe.shape("i","l","p");
recipe.setIngredient('i', new RecipeChoice.ExactChoice(DEItem.MAILLECHORTS_INGOT.getItem()));
recipe.setIngredient('l', Material.LIGHTNING_ROD);
recipe.setIngredient('p', new RecipeChoice.ExactChoice(DEItem.MAILLECHORTS_PLATE.getItem()));
return recipe;
}
just loop through the itemstacks and check if it contains your itemstack
noble lantern
would join() make the futures block on the server thread?
rare flicker
just loop through the itemstacks and check if it contains your itemstack
doesnt really work
noble lantern
without calling join() the threads never completed theyre tasks
ashen quest
doesnt really work
what are you looping through
noble lantern
it uses new thread on connections just fine tho
ashen quest
what array of itemstacks, from crafting event?
rare flicker
noble lantern
wait
rare flicker
this is something i want to cancel
noble lantern
it doesnt
rare flicker
because the bottom right ingot is not a real copper ingot
but a custom one
so your method would work here
ashen quest
so just use the inventory drop/click event
cast to CraftingInventory if instanceof
loop through the items (has a method for the recipe items)
check if it contains your item
if it does, setResult to null
noble lantern
I can give you repo access or just the lib jar if you want to test it out directly
rare flicker
but what i also have recipes like this
ashen quest
oh
rare flicker
which should remain
ashen quest
then u need to check for each recipe i guess
or wait
u can maybe add checks for results
noble lantern
The work stealing pool does have 96 threads but i dont think thats the issue
rare flicker
tried both
ashen quest
oh
noble lantern
i have plenty of ram and im on an i7
ashen quest
no idea then I am sorry
ashen quest
The work stealing pool does have 96 threads but i dont think thats the issue
are you messin with the new Loop thing
noble lantern
are you messin with the new Loop thing
nah this is CompletableFutures on work stealing pool executors
ashen quest
oh
rare flicker
i can pastebin my class if you want
ashen quest
yea that would be nice
ashen quest
nah this is CompletableFutures on work stealing pool executors
i heard the new virtual threads thing is secksy
noble lantern
it was when it was working
not i just stopped and runs on thread 115
even after restarts it chooses thread 115 
ashen quest
true
rare flicker
i have no idea what this new thing is about
ivory sleet
we will get StructuredTaskScopes also
ashen quest
its about threads
ivory sleet
Which is awesome
ashen quest
*i have no idea what this new thing is about*
basically something secksy AF that is fast AF
noble lantern
But thats java 19 😦
Wait java 19 has better thread handling?
ashen quest
multithreading on a new level
ivory sleet
Yes
ashen quest
Wait java 19 has better thread handling?
heck yea
noble lantern
ill switch my project over rn
ashen quest
finally a good java update
noble lantern
is the new changes east to implement?
ashen quest
ill switch my project over rn
xd
rare flicker
what changed exactly?
noble lantern
And use on futures?
rare flicker
thread creation became less expensive or smth?
ashen quest
what changed exactly?
virtual threads, its called "Project Loom"
ivory sleet
And we get better error handling
noble lantern
im gonna have to change my auto deployment up
ashen quest
wat whut java19 is out?
noble lantern
oh is it not
noble lantern
so not anyone can get it
noble lantern
well tbf java 19 wont work for me
because my deployments need a gradle docker image
and i doubt a jdk 19 is available yet
rare flicker
no idea then I am sorry
fuck am i stoopid, i can retrieve the namespacedkey from shapedrecipe
ashen quest
fuck am i stoopid, i can retrieve the namespacedkey from shapedrecipe
nicee finally
ivory sleet
new ForkJoinPool(Runtime.getAvailableProcessors(),defaultForkJoinWorkerThreadFactory,(t,e)->e.printStackTrace(),true);
^ try that impl
ashen quest
https://hub.docker.com/_/gradle?tab=tags&page=1&name=19
Sad
gotta wait some item
ashen quest
GG
ashen quest
my pleasure
ashen quest
made me look again through the docs xD
docs always there to save xd
noble lantern
building now
ashen quest
how does spigot show the fake diamonds/ores stuff when a user tries to xray?
rare flicker
i was confused because #Recipe doesnt have a getKey method
ashen quest
i want to do something similar
rare flicker
i want to do something similar
packet interception?
ashen quest
oh packets, scary
rare flicker
like, when the server send a chunk it replace the ores to stone?
noble lantern
weird its still blocking
rare flicker
maybe its smth else i never really looked into it
noble lantern
and chooses thread 115 always