help-development

[thorn isle]

who was the resident towny guy here again

elgar?

[mortal vortex]

lmfao

are you using the shaded jar though

I would jjust have:

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.5.1</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <relocations>
                            <relocation>
                                <pattern>org.pircbotx</pattern>
                                <shadedPattern>com.mrnategeek.libs.pircbotx</shadedPattern>
                            </relocation>
                        </relocations>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

and then use mvn package, and then use the shaded jar, not the original or anything

also for the love of God, stop naming your entrypoint class "Main"

[thorn isle]

i hate april fools

half the guilds in my list have the dumb red fake "unread pings" circle in their icons

cue the fucking shelf of identical buzz lightyear figures

[slim wigeon]

I not in the mood to deal with drama. I just cannot get this working, I tried ChatGPT and everything possible. Not everyone is the same

[thorn isle]

the more things change the more they stay the same

are you sure you're using the shaded jar?

[mortal vortex]

its not fucking drama dude

naming ur classes Main is such a dogshit practice

[slim wigeon]

They are my plugins, I not planning on releasing them so why does it matter?

[thorn isle]

it's like wearing a clean pair of underwear

i don't expect you to showcase it to me and i'm definitely not going to use it

but you probably do want to wash them once or twice a year just for your own sake

[slim wigeon]

Just wow

[mortal vortex]

that is the best analogy i have EVER heard and im using it

[thorn isle]

now you have 3 ambiguous Main's that you have to reference via fully qualified name

[green mauve]

how should i efficiently find a random place for a mob to spawn. should i just do a random Vector and check until i find a place i can spawn a mob?

[young knoll]

I wonder how Mojang does it

My guess is they just pick a random position and check up/down a few blocks to see if any are valid

[short pilot]

Is there a way to modify compostable items, iirc no tag exists for those right? You would have to hardcode the interactions yourself?

[mortal vortex]

wdym

you mean like, the ability to make an item compostable?

then yeah, no tag

[short pilot]

Ah

[vagrant stratus]

Probably, yea

[sullen canyon]

Pick a random godemiche

If you already picked one, then stick to it

[whole mist]

I changed how I handle my block plugin any ideas for refinement?

@EventHandler
    public void onAsyncPreLogin(AsyncPlayerPreLoginEvent event) {
        String ip = event.getAddress().getHostAddress();
        if (authorizedUuids.contains(event.getUniqueId().toString())) return;

        if (isCalifornia(ip)) {
            getLogger().log(Level.WARNING, "[BLOCK] CA Rejection: " + event.getName() + " [" + ip + "]");
            event.disallow(AsyncPlayerPreLoginEvent.Result.KICK_BANNED, getLegalNotice());
        }
    }

    private boolean isCalifornia(String ip) {
        try {
            HttpRequest request = HttpRequest.newBuilder()
                    .uri(URI.create("http://ip-api.com/json/" + ip + "?fields=region"))
                    .GET().build();
            HttpResponse<String> response = httpClient.send(request, HttpResponse.BodyHandlers.ofString());
            return response.body().contains("\"region\":\"CA\"");
        } catch (Exception e) {
            return false;
        }

[smoky anchor]

not a fan of ignoring the log-ips server property

[thorn isle]

that contains call is a bit iffy but i guess it probably works

i'd probably use json.simple or gson or something to parse the body

[vagrant stratus]

Why are we blocking cali though? lmfao

what'd i miss?

[lilac dagger]

probably has to do with age verification in california

[thorn isle]

myes

the UK is encroaching on US soil again

this time on the west coast

we're long overdue for a second round

[vagrant stratus]

ahhh

[slender elbow]

lmfao

wth is going on

[mortal vortex]

ligma

[onyx fjord]

still whats the point

its not like you face any consequences

[thorn isle]

myes

you are stronger than the law

[onyx fjord]

some random country region law doesnt apply to everyone in the world

[dry forum]

i have a multi-module plugin and i want to be able to use PAPI placeholders if the player has the plugin on all of their backend servers but my plugin on the proxy (PAPI isnt for bungee/velocity servers), is there anyway to use the PAPI api from my bungee module?

[thorn isle]

not super cleanly

you'll probably want to parse the placeholders on the backends and then send them to the proxy

[dry forum]

whats the best way to do that

[thorn isle]

what are you trying to do specifically

e.g. what placeholders are you trying to parse and why

[dry forum]

any, i want people to be able to use PAPI placeholders in my plugin

[thorn isle]

you can do what TAB does and have the placeholders and message strings defined in each backend's config, parse them there (you'll need a bukkit module of your plugin that gets deployed on the backend) and send the formatted strings to the proxy

at that point however it might just be easier to move your entire plugin to work on just the backends

[dry forum]

currently its js install the jar on either a backend or proxy, not proxy and all backends

so what would be tje best way to parse from bukkit to then send to bungee

im assuming a database is a bit inefficient

[thorn isle]

presumably you will be parsing the placeholders on the backend the player is on, so plugin messaging should work

send a plugin message from your proxy plugin to the backend the player is on; receive it with your backend plugin, pass it to papi with the appropriate player as context, and respond with a plugin message

this is going to incur arbitrarily high latency though, depending on how far away the proxy and backend are from each other

[dry forum]

so id need to make it so my plugin works with a jar on the proxy and each backend?

[thorn isle]

yes, no way around it

papi only exists on backends

[dry forum]

alr thanks

[thorn isle]

and while you can send plugin messages to the backend from the proxy, you still need some of your code to be there to interpret them and act on them

[dry forum]

idk ive been messing around with it for a bit and you need to have a player to transmit data between servers...? if thats the case it wont work, is there some other way?

[quasi gulch]

Is there a way to hide the Dynamic Tag or make the skull not dynamic? I want to use the texture of the player when created the head does not need to stay dynamic but idk how to make that. I use the UUID to get the PlayerProfile.

[thorn isle]

You also need a player to resolve most papi placeholders

[thorn isle]

That's why I made this presumption

If you need to resolve offline placeholders, you need a messaging service like rabbitmq, or if you are already using redis, that also has a (pretty lacklustre) messaging system

[dry forum]

nah not reallyyy

most placeholders would be offline players

if no one is online the feature js wouldnt work

[thorn isle]

Most placeholder resolver implementations require an online player; offline placeholders have a separate contract and are optional

It does depend on the specific placeholders of course

[dry forum]

msot placeholders i expect people to be using are like:
%leaderboard_1% etc

and still, if no one is online, it wont work which isnt an option

[thorn isle]

But if your goal is "all" or "any", you do need the player to be online

[dry forum]

but still, if no one is online it wont work

which wouldnt work

(for my plugin)

[thorn isle]

.

[dry forum]

so my best opiton is to use a db then?

[thorn isle]

No? A messaging service

Databases store data

[dry forum]

well i was going to do requests through db and i might still need to

[thorn isle]

Your backend already stores the data, the problem is the proxy needs access to it

[dry forum]

i dont understand any other way to do it

never used a messaging system and i dont know what it is

a db would still work no?

[thorn isle]

Plugin messaging is a messaging system, but it requires a player to be online to work

You can do poll based messaging over a database but it is a really terrible way of going about it

To be clear, are you trying to parse any arbitrary papi placeholder from any plugin, or just placeholders from your own plugin?

[dry forum]

yeah

[thorn isle]

That was not a yes or no question

[dry forum]

my plugin can be installed on bungee/spigot and i have a way to parse on spigot since papi is spigot but no way on bungee

[dry forum]

any plugin

[thorn isle]

Then you need messaging between the backend and the proxy

If it was just your own placeholders, you could use a database and just do the placeholder replacements yourself by querying the db

[dry forum]

you mean the one that requires a player to be on?

[thorn isle]

No, that is a requirement specifically for plugin messaging

Which is a kind of messaging system; it delivers messages between the proxy and a backend, allowing them to communicate

What you need is a messaging system that works without a player online

Such as redis messaging, rabbitmq, raw sockets, any number of other approaches

[dry forum]

alr ill try thanks

[green mauve]

but i dont think it would be any more efficeint than just taking a random one each time. it might seem like its more efficient around level 60-70, but its way less efficient at levels like 250 etc. so overally its equal

[naive minnow]

Don’t know if relevant but I remember hearing that mobs spawn more or leas at different height levels (I think they spawn faster lower iirc?) so I think it’s more complicated than just picking a random pos

[thorn isle]

There is a wiki page on it but I don't remember what it says

[pliant topaz]

https://minecraft.wiki/w/Mob_spawning

Short recal for what you are doing:

Packs of up to 4 mobs are spawned in a chunk. 3 are attempted per tick and if one ends up in an opaque block, every other is cancelled.
Each mob is spread out by +-5 blocks on XZ.

XZ are chosen at random, Y is between -64 and the highest sky accrssible block (which is why spawning is more likely underground).

Its a whole lot more complicated if you go into more detail and theres like a gazillion special rules for specific mobs etc, but generally i think it sums it up quite okay

[buoyant viper]

and yet the game always manages to only ever spawn a creeper or a gang of skeletons on my exact location at the most inconvenient times

[pliant topaz]

of course

[wraith spade]

hey chat, rn im trying to summon dragons breath on arrow land, ill post my entire file below, how do i summon all of the changes where the to cloud ive made, and also define cloud as an areaofeffectcloud above it? sorry if this is a dumb question, thank you in advance. (it detects the bow its just the summoning I need help with)

        if (event.getEntity() instanceof Arrow) {
            NamespacedKey bowkey = new NamespacedKey(this, "bowkey");
            Arrow arrow = (Arrow) event.getEntity();
            Player player = (Player) arrow.getShooter();
            if (!(arrow.getShooter() instanceof Player)) return;
            Location location = arrow.getLocation();
            ItemMeta meta = player.getInventory().getItemInMainHand().getItemMeta();
            PersistentDataContainer bowpdc = meta.getPersistentDataContainer();
            String value = bowpdc.getOrDefault(bowkey, PersistentDataType.STRING, "<null>");
            World world = player.getWorld();
            if (value.equals("bowpass")) {
                Bukkit.broadcastMessage("Detected bow");
                
                    cloud.setParticle(Particle.DRAGON_BREATH);
                    cloud.setRadius(3.0F);
                    cloud.setDuration(200);
                    cloud.setWaitTime(0);
                    cloud.setReapplicationDelay(20);
                    cloud.addCustomEffect(new PotionEffect(PotionEffectType.INSTANT_DAMAGE, 1, 1), true);

                });
            }
        }
    }```

[sullen marlin]

Am I blind? Where did you define cloud variable

[wraith spade]

i didnt, im asking how to define then summon after i edited it

because idk how im new sry

[crystal glen]

ook sooooooooooo when trying to code my server in Eclipse IDE and i add the External Jar file to the code it dosent load it either

i even refreshed the project but didnt load can someone help

[sullen marlin]

AreaEffectCloud cloud = player.getWorld().spawn(location, AreaEffectCloud.class)

[crystal glen]

?/

[wraith spade]

but wouldnt that also spawn it? i need to define then edit it then spawn after

[crystal glen]

ook sooooooooooo when trying to code my server in Eclipse IDE and i add the External Jar file to the code it dosent load it either

i even refreshed the project but didnt load can someone help

[sullen marlin]

Then use a consumer as the third argument and edit in the consumer

[chrome beacon]

?bootstrap

[undone axle]

Bootstrap Jar
The main spigot-1.18.jar is now a bootstrap jar which contains all libraries. You cannot directly depend on this jar. You should depend on Spigot/Spigot-API/target/spigot-api-1.18-R0.1-SNAPSHOT-shaded.jar, or the entire contents of the bundler directory from your server, or use a dependency manager such as Maven or Gradle to handle this automatically.

Please read the release notes for further information: https://www.spigotmc.org/threads/9-years-of-spigotmc-spigot-bungeecord-1-18-1-18-1-release.534760/#post-4305163

[wraith spade]

location.getWorld().spawn(location, AreaEffectCloud.class, cloud -> {
cloud.setParticle(Particle.DRAGON_BREATH);
cloud.setRadius(3.0f);
cloud.setDuration(600);
cloud.setWaitTime(0);
cloud.addCustomEffect(new PotionEffect(PotionEffectType.INSTANT_DAMAGE, 1, 1), true);
});

ok so I did this and it doesnt summon the cloud, what did i do wrong lol probably a lot

[sullen marlin]

Looks ok, is the code running?

Is the location right?

[wraith spade]

let me put a braodcast inside of the thing, give me a sec

yep, it is running the code inside of the spawn thing, but I dont think it is spawning

[wraith spade]

yea, earlier on it states:
Location location = arrow.getLocation(); (arrow is get entity)

[mortal hare]

even chatgpt thinks this should be a feature

https://tenor.com/view/bih-please-gif-7953510298892076313

[pliant topaz]

eww

[hushed spindle]

ok thats cool except that the opinions of chatgpt dont matter

[quaint basin]

Does anyone know how to make those nice End portals in the new versions that type a command for you when you enter?

idk how to explain

[mortal vortex]

bros a java Pharisee

[hushed spindle]

man

im sorry you're right all hail openai and mighty chatgpt

knower of all things

haver of objectively correct opinions

possessor of biggest dong

praise be

[wraith spade]

btw the particle part of making it dragons breath is whats breaking it, idk why. the rest works fine

[mortal hare]

there's probably nothing more annoying in java than having to convert autoboxed array to primitive one

[lilac dagger]

True

But you can have a helper method to do it for you

[mortal hare]

does guava have something for me

[lilac dagger]

I don't know

Check both guava and apache commons

[mortal hare]

https://tenor.com/view/cr1tikal-penguinz0-meme-woo-yeah-baby-gif-19316511

char[] arr = Chars.toArray(myList);

[lilac dagger]

Nice

[wet breach]

is this what you are needing to convert?

[lilac dagger]

Looks like it @wet breach

[wet breach]

import org.apache.commons.lang3.ArrayUtils;

public class ConversionExample {
    public static void main(String[] args) {
        Character[] wrappedArray = {'A', 'B', 'C', 'D'};
        
        // Convert Character[] to char[]
        char[] primitiveArray = ArrayUtils.toPrimitive(wrappedArray);
        
        // Result: ['A', 'B', 'C', 'D']
    }
}

Arrays.stream(wrappedArray).map(c -> (char) c).toArray()

last one if you just don't want to use any libs

[lilac dagger]

Pretty cool apache commons have this for arrays

[loud jasper]

hi

[lilac dagger]

Only issue is it's lang3

[wet breach]

pretty sure it exists in the updated stuff too

?services

[undone axle]

If you wish to request or offer development/art/building/administration services, please do so at https://www.spigotmc.org/forums/services-recruitment-v2.54/

[mortal vortex]

wants make minecraft servers 🔥🇵🇰

[wet breach]

guess you can't read

[quaint basin]

https://imgur.com/a/ab9eJw1 is this resourcepack?

[mortal vortex]

@loud jasper im interested in buying a property in egypt

[quaint basin]

https://imgur.com/a/22oOfsM How do I add my custom recipe to the left side?

https://imgur.com/a/MUXjown amount is being ignored. idk what should i do too

[mortal vortex]

@quaint basin I think from this, https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/entity/HumanEntity.html , it appears like you can discover a recipe.

#discoverRecipe(NamespacedKey recipe)

in theory, you just, on player join, and discover it

[young knoll]

Amount is always ignored on ingredients

The Minecraft recipe system doesn’t support that

[mortal vortex]

very helpful mr helper

can we get jishuna promoted to moderator

[shadow night]

isn't there like a mapTo<primitive> or smth like that?

Idk if it exists for char but I think I saw mapToInt recently

[quaint basin]

how can i do that then?

[quaint basin]

need remove on player quit?

[quartz basalt]

        ArmorStand armorStand = location.getWorld().spawn(location, ArmorStand.class, (a) -> {
            a.setGravity(false);
            a.setInvisible(true);
            a.setGravity(false);
            a.setInvulnerable(true);
            a.setMarker(true);
            a.setSilent(true);
        });

        Guardian guardian = location.getWorld().spawn(location, Guardian.class, (g) -> {
            g.setAI(false);
            g.setInvulnerable(true);
            g.setInvisible(true);
            g.setSilent(true);
            g.setCollidable(false);
            g.setLaser(true);
        });
        guardian.setTarget(armorStand);```
the guardian isnt targeting the armorstand, it doesnt have a visible beam

[wraith spade]

hey so im making a dragons breath particle, rn down below everything works, but when you add:
cloud.setParticle(Particle.DRAGON_BREATH);
it breaks and doesnt summon at all, this is my code excluding the line above:
location.getWorld().spawn(location, AreaEffectCloud.class, cloud -> { cloud.setRadius(4.5F); cloud.setDuration(200); cloud.setWaitTime(0); cloud.setRadiusPerTick(0.01F); cloud.setDurationOnUse(0); cloud.setRadiusOnUse(0); cloud.setReapplicationDelay(20); cloud.addCustomEffect( new PotionEffect(PotionEffectType.INSTANT_DAMAGE, 1, 1), true ); });

[kind hatch]

Certain particles have extra data that need to be passed along.
In this case, it's just a float. Of which the internal usage is just 1.
cloud.setParticle(Particle.DRAGON_BREATH, 1F);

[wraith spade]

oh alright thank you

[mortal hare]

java 9 modules exist for ages yet no lib pretty much ever uses them

sad

[thorn isle]

They're more trouble than they're worth

[slender elbow]

no lib
lol

[worldly ingot]

JFX in shambles

[orchid trout]

jay

[green mauve]

public class Food extends CommandBranch {

    public Food(String name) {
        super(name, null);
        registerChildren();
    }

    @Override
    protected void registerChildren() {

    }
``` is there any way for me to ensure that each subclass (like this one) calls registerChildren? the problem is that it the method has to access "this"
and i cannot just put it in super constructor which i would if not that problem

[thorn isle]

this is something i've wanted in java for a long time

[green mauve]

how could that work?

[thorn isle]

the way I imagine it'd work is we add a new keyword like inherited or whatever on methods that enforces similar behavior as in constructors, where they must call super

it is a massive reliability issue that there is no way to force inheritors to propagate calls up to superclass code

oh, I somewhat misread your question

if you need some logic to be run after the ctor runs, the best place to do that is in the registry where you're registering these commands

e.g. in this case you'd move registerChildren out of the Food constructor and instead move it to the CommandRegistry, which would call it on any CommandBranch instance passed to it

[green mauve]

uhm, but each command has its own children and these children have their own

[thorn isle]

another pattern that might work is

private registerChildren0() {
   registerChildren();
   getChildren().forEach(child -> child.registerChildren0())
}
protected registerChildren() { }

and then only the top-most node must have registerChildren called on it, and it will recurse it through all its children

[green mauve]

oh

what about a builder? could something like this work?

Branch.of("food")
    .leaf("give", new Give())
    .branch(branch.of("set")
        .leaf("amount", new SetAmount())
        .leaf("type", new SetType()))
    .leaf("info", new Info())
    .build();

i guess it would have to pass the "this" refference after the creation of these instances then

[thorn isle]

very difficult to say without knowing what you're going for

[green mauve]

the thin is that each branch has to know its parent

or leaf

[thorn isle]

when i do hierarchical commands, I don't have a registerChildren(); i have at best a registerChild(), and each parent node will call it for each child node it wants to register

registerChild() would take the child node as a parameter, so the parent node is responsible for constructing it; so it can pass this to it if it needs it

[ivory sleet]

Or a more general solution could be to just implement a visitior for all nodes in ur tree

then if u wna perform some sort of registration, thats entirely possible

[green mauve]

what is a visitor in this case

[ivory sleet]

interface Visitor {
void visitLeaf(Leaf l);
void visitBranch(Branch b);
}
for example

[thorn isle]

class FoodCommand extends RootCommand {

   FoodCommand(Plugin plugin) {
       plugin.register(this);
       leaf(new Give(this));
       leaf(new Info(this));
   }

   class Give extends BranchCommand {
       Give(FoodCommand parent) {
           branch("set").withChild(new SetAmount(...))
           branch("type").withChild(new SetType(...))
       }
   }

   class Info extends SimpleCommand { ... }

you can also inline them into less verbose anonymous classes, if you don't require extra ctor parameters

then again we are basically reinventing ACF and brigadier and every other command framework under the sky

[green mauve]

its a little hard to understand since you kind of swapped the names , but isnt this just what i did but without the forcing subclasses to do that

[thorn isle]

i usually just nest CommandExecutors in maps

[thorn isle]

in principle kind of, but this way it's easier to inject e.g. this into the children

with the builder approach, you will need to accept a Function<ParentNode,ChildNode> instead of just a ChildNode

and then pass the parent node to the function

and for every "injected dependency" of the child node, you end up convoluting your functions more

[echo basalt]

that's gonna be nightmarish to put in use

[wraith spade]

does anyone know how or have a doc or smth on how to pull people into a specific location?

[buoyant viper]

u can just like

teleport people

or probably calculate a vector to a location and apply velocity towards it if u want to "pull" them

[covert stump]

does this looks right?
I wanna grab luck perms prefix in chat using vault

                String vaultPrefix = plugin.getChat().getPlayerPrefix(source);
                Component prefix = LegacyComponentSerializer.legacyAmpersand().deserialize(vaultPrefix != null ? vaultPrefix : "");```

here is where it actually gets injected into the final chat line right before the players name..

// Final Output
return Component.text()
        .append(prefix)           
        .append(nameWithHover)    
        .append(customTitle)      
        .append(mm.deserialize("<dark_gray> » <white>")) 
        .append(finalMessage)     
        .build();

So it should be like...
(RANK) Sam_0X [TITLE] -> xyz message

[mortal vortex]

so what is it actually?

[mortal vortex]

when you say "should", do you mean it isnt?

ur last line could be compressed to just:

Component prefix = LegacyComponentSerializer.legacyAmpersand()
    .deserialize(Objects.requireNonNullElse(vaultPrefix, ""));

[covert stump]

In chat listerner using Papers AsyncChatEvent and the Adventure API to build the message as a Component... It handles lp prefixes via Vault, pulls player titles from DeluxeTags via PAPI...
ty on requireNonNullElse, definitely cleaner for the null check... swapping that in rnI was seeing some inconsistent returns from the provider earlier, so this hardens the logic finalizing the listener now

I usually throw down a ternary for the initial prototype to keep the logic visible while Im wiring up the renderer...

[mortal vortex]

you know whats fucking crazy?

this server is called SpigotMC

yk what spigot is?

[covert stump]

Lmao yeah.. We run a custom paper fork.. so Im leveraging Papers API for the renderer since its vastly superior for handling components.... just hang in the Spigot discord because the general plugin dev community is a lot more active here..

[mortal vortex]

yeah anyways i got that, but whats ur point?

you said: "So it should be like... ", so what do you need help with? is it not providing the output you expect?

[covert stump]

yeah..

Title is missing

although lp prefix is good now

[mortal vortex]

you dont even show the code for that

customTitle, where is thgis?

[mortal hare]

Jackson2ObjectMapperBuilderCustomizer ah yes object mapper builder customizer

java moment

[chrome beacon]

Become the dev you want to find 🧠

[mortal hare]

does anyone know how to register a jackson module in java to forbid certain type from serializing to json?

[mortal hare]

nvm solved it, i expose a jacksonmodule java bean in spring and spring picked it up and registered for me

@Configuration
public class JacksonConfiguration {
  private static final ValueSerializer<?> SENSITIVE_TYPE_SERIALIZER = new ValueSerializer<>() {
    @Override
    public void serialize(final Object value, final JsonGenerator generator, final SerializationContext context) throws JacksonException {
      throw InvalidDefinitionException.from(
          generator,
          "Serialization of sensitive type [" + value.getClass().getName() + "] is forbidden"
      );
    }
  };

  private static final Set<Class<?>> FORBIDDEN_SERIALIZATION_CLASSES = HashSet.of(
      Password.class
  );

  @Bean
  public JacksonModule createForbiddenSerializationModule() {
    SimpleModule module = new SimpleModule();
    module.setSerializerModifier(new ValueSerializerModifier() {
      @Override
      public ValueSerializer<?> modifySerializer(final SerializationConfig config, final BeanDescription.Supplier description, final ValueSerializer<?> serializer) {
        if (JacksonConfiguration.FORBIDDEN_SERIALIZATION_CLASSES.exists(forbidden -> forbidden.isAssignableFrom(description.getBeanClass()))) {
          return JacksonConfiguration.SENSITIVE_TYPE_SERIALIZER;
        }
        return serializer;
      }
    });
    return module;
  }
}

this works for me

[frozen saddle]

can someone help me out, willing to pay via paypal

[young knoll]

?ask

[undone axle]

If you have a question, please just ask it. Don't look for staff or topic experts. Don't ask to ask or ask if people are awake or available. Just ask the question to the channel straight out, and wait patiently for a reply. Make sure you use the right channel regarding the topic of your question. Create a thread in case the channel is already in use!

[umbral ridge]

https://giphy.com/gifs/dog-sleep-nap-ze1DcYRbgGAEM

[scarlet ermine]

Yo im new to plugin development and java coding language does anyone have any tips on how to get started?

[buoyant viper]

id certainly suggest getting a good understanding of Java down pat

[scarlet ermine]

Yeah I did some today but it's late but I will practice more tomorrow. I did manage to make a custom command with my friend on a call tho.

[buoyant viper]

thats good

keep practicing

[mortal hare]

is it just me or whenver i use something like jspecify i always keep fighting the nullability problems

especially with functional programming part of the java

[buoyant viper]

fp
java

theres ur first issue /j

[scarlet ermine]

I totally understand everything you just said :3

[mortal hare]

welcome to the rabbit hole

[scarlet ermine]

I can already tell my brain will never stop hurting from this point foreward

[mortal hare]

its like stockholm syndrome, once you start hating, you'll start loving it

https://tenor.com/view/throw-out-rage-parks-and-rec-nick-offerman-ron-swanson-gif-17688925

well its not jspecify issue but still

[scarlet ermine]

Oo wut u coding?

[mortal hare]

its thesis project which i fail miserably right now due to bullshit issues like these

[scarlet ermine]

Damn

[sly topaz]

that code smells wrong

the moment you start using Optional just to chain some operations, you already fell into a hole

normal procedural code won't hurt you

[ivory sleet]

that depends imo

[mortal hare]

streams are my guilty pleasure

it just feels so nice to write a for loop in one line

[sly topaz]

I am a strong believer that Optional is only really good as a return type, and even there it kinda falls flat if your whole program doesn't use them

[silk elk]

Does anyone have ProtocolLib experience? I'm genuinely pulling my hair out and I need help

[ivory sleet]

yea you just have to remember any kinf of functional java programming sucks ass cuz its java, miserable

[sly topaz]

may as well just write Scala, functional feels right in it

[sly topaz]

don't people nowadays use PacketEvents

[ivory sleet]

and doing that with jspecify sounds terrible, esp if u run that preprocessor nullaway? or whatever its called 😅

[sly topaz]

but also

?ask

[undone axle]

If you have a question, please just ask it. Don't look for staff or topic experts. Don't ask to ask or ask if people are awake or available. Just ask the question to the channel straight out, and wait patiently for a reply. Make sure you use the right channel regarding the topic of your question. Create a thread in case the channel is already in use!

[silk elk]

Uhhh I'm not sure? I haven't worked with packets in years and I can't stand NMS so I just immediately thought about ProtocolLib

[ivory sleet]

I mean yea, there are issues w spreading optional everywhere as its just a nullable wrapper and is a relatively weak way of representing nullable types if you look at it from a fp perspective

[sly topaz]

no issue with using ProtocolLib, it just doesn't keep up as well anymore

[ivory sleet]

but sometimes you kinda have to, let's say you're a modder, you're likely gonna have to touch at least some dfu codec

[silk elk]

I'm not sure how to go about PacketEvents in that case. I'm trying to just change a player's pitch and I'm struggling to figure out which packet specifically I'm supposed to use and what fields to change

I wanted to create a recoil kind of effect without using player.teleport

[sly topaz]

why

[ivory sleet]

^^

api should suffice for the problem ur trying solve?

[sly topaz]

though I think people use the consumable component with some fancy resource pack shenanigans for things like that in modern versions

[silk elk]

How would I go about using the API there? Doesn't changing the players rotation require you to use teleport?

[sly topaz]

yes, but why are you avoiding teleport to begin with

[silk elk]

Because its janky and I would need to be constantly calling it

For what I'm trying to do at least

[sly topaz]

what is janky about it

I think you're digging yourself into a problem for no reason honestly, teleporting sounds just fine for this purpose

[sly topaz]

but do look into this as well

you will be using a resource pack for the gun models I imagine so it shouldn't be much of an issue

[silk elk]

I mean I can try it but I've read that teleports are somewhat resource intensive idk if thats true thats just what I've seen while researching this

At least contantly calling it

[sly topaz]

it can be if done for chunks that aren't loaded

but that wouldn't be the case in your scenario, so I don't think it should be that performance intensive

[silk elk]

I'll try it and see what happens

[young knoll]

It’s just sending a packet

And updating some fields

[silk elk]

Well after a few hours or working on it, I think I got something I really like. Using Player#teleport showed to be really janky as I figured it would be. It was choppy looking and would reset the players velocity so that wasn't ideal for the feel of the game. I ended up just using NMS because I learned Mojang de-obfuscated the code in 26.1 (I was still on 1.21.11). I just created a new PositionMoveRotation and passed in Vec3.ZERO for position and deltaMovement and passed in the new pitch. Set all the Relative flags and sent a ClientboundPlayerPositionPacket. Was initially a little jittery looking but I decided to smooth it out using a linear interpolation function and running a TaskTimer to send the packets. Even tried scaling the iterations of the lerp function and the period of the task to have bigger recoil effects feel a little smoother. Seems to work really well and it maintains the players velocity so it flows nicely.

[kind hatch]

Man, I've been finding so many bugs lately. It's weird.

For instance, I have just found out that calling Player#getRespawnLocation() will use a respawn anchor charge.
Just by calling the method. (A read method) 😭

Oh well, time for another bug fix PR I suppose.

Now that I'm thinking about it. I wonder how long that bug has gone unnoticed for.

[wicked swift]

@everyone

Can anyone help me with my server

[mortal vortex]

all 27,101 members come quick, this guy needs help

[wicked swift]

Pls

[wicked swift]

I don't understand anything about developing a server

[mortal vortex]

as i said in general, #help-server and instead of "can anyone help", simply ask what you need help with directly

[wicked swift]

Can anyone help me setup my server bc idk how to and I wanna turn it into a survival server where u die you will be banned for 5 mins

[mortal vortex]

#help-server

and again, you need to be more specific, "can anyone help me setup my server" is incredibly vague, where are you stuck?

[wicked swift]

Oh sorry mb

[covert stump]

mb for not replying.. Its working now

it takes lp prefix here:
String vaultPrefix = plugin.getChat().getPlayerPrefix(source);
then converted into component
Component prefix = LegacyComponentSerializer.legacyAmpersand().deserialize(vaultPrefix != null ? vaultPrefix : "");

here deluxe tag is taken
customTitleRaw = PlaceholderAPI.setPlaceholders(source, "%deluxetags_tag%");

if player has no tag dont show anything :

    customTitleRaw = "";
}```

here converted: 
```Component customTitle = LegacyComponentSerializer.legacyAmpersand().deserialize(customTitleRaw);```


and here it gets combined

```return Component.text()
        .append(prefix)           
        .append(nameWithHover)    
        .append(customTitle)     
        .append(mm.deserialize("<dark_gray> » <white>")) 
        .append(finalMessage)     
        .build();```

[mortal vortex]

thanks for the update??

congrats, it works.

[covert stump]

ty

[umbral ridge]

[kind hatch]

Welp, every day I seem to be learning more and more about how minecraft works.
-# and the jank that goes along with it. :cries:

Turns out that thunder is a server side thing for some reason.
You would think that weather rendering would include lightning bolts, but they are actually entities. .-.

[chrome beacon]

Hm? You didn't know that?

[lilac dagger]

oh yeah

lightning bolts are entities

well the idea behind is you can get struck by one

altho they could just make an explosion and send a lighning packet

[chrome beacon]

they interact with the world and other entities

[lilac dagger]

i'm sure they had a reason to use entities for this

[chrome beacon]

Making them an entity just saves time

[lilac dagger]

true

[thorn isle]

since it interacts with the world, it must be server-side

only things that don't interact with, or more specifically modify, the world, can be clientside; like particles

it also would not make sense for lightning to be a block

so the remaining bucket to put it in is entity

[young knoll]

Could be a really big particle I guess

[buoyant viper]

mojank

[fallow saffron]

except it didnt need to be an entity still... each time it strikes, the server has to add the lightning bolt to entity list, give it a uuid and a plethora of other things for something that exists for 0.1 seconds, this isn't about it "modifying the world" this is Mojang was lazy at the time and already had the packets set up so they went with it being an entity

[chrome beacon]

I mean do you really want them wasting time on that

There are a lot of other things to do

[slender elbow]

and it's perfectly fine for all of those things to happen

if spawning a lightning bolt brings your server to its knees then you have way bigger problems to worry about

[onyx fjord]

does client send cookies before joining?

[slender elbow]

no, it is the server that can request a cookie from the client

[covert stump]

So In scoreboard and chat it shows Prefix of a Rank

But it doesnt show the luckperm prefix with username and in TAB

Does anyone know why? And this is only for specific ranks Like Guest, And some media ranks

while other works alright

[frosty bolt]

Does anyone know why maven isn't downloading ProtectionStones? <repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
<repository>
<id>spigotmc-repo</id>
<url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
</repository>
</repositories>

<dependencies>
    <dependency>
        <groupId>com.github.espidev</groupId>
        <artifactId>ProtectionStones</artifactId>
        <version>v2.10.5</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.spigotmc</groupId>
        <artifactId>spigot-api</artifactId>
        <version>1.20.6-R0.1-SNAPSHOT</version>
        <scope>provided</scope>
    </dependency>
</dependencies>

[mortal hare]

i just love how AI is scared about how i store salts inside strings due to how they're immutable and cant be zeroed out until GC deletes it (heap dump attack), but when it comes to basic security it ignores likes its nothing

in all fairness how likely that you can get raw passwords and hashes from dumping heap in java

is there any way to completely protect from this

i mean if you retrieve values from db you usually get these in a form of string

i feel like if you're so paranoid about gc not deleting things on time you shouldnt use garbage collected language in a first place

[ivory sleet]

you might be able to store them off heap

not sure to what degree thatd help, but maybe?

[thorn isle]

if you can dump the heap you can probably worm your way into the runtime and just print out your char[] contents as well, all it does is makes the window of opportunity a bit shorter

[echo basalt]

you have no idea how many heapdumps are out there on git with all their credentials inside

[green mauve]

what are -infinity, infinity, NaN, -0.0 like things for? are they really used for anything

[echo basalt]

They represent some funky quirks of floating point operations

Like dividing by zero

[covert stump]

?

[umbral ridge]

the best is if you make tab by yourself and everything xD

i cant rely anymore on already made plugins, i prefer my plugins over anything

[raw sequoia]

yo guys is buildtool installation really takes time?

I did "wget https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar -O BuildTools.jar && java -jar BuildTools.jar" on wsl and it's been almost 2 hours and still downloading it

[thorn isle]

i remember having to build paper on my low end laptop

it was always a case of "go out and touch grass"

it would of course always also fail an hour and a half in

[chrome beacon]

What is it stuck on downloading?

[raw sequoia]

not stuck, just downloading stuff

[raw sequoia]

and this is a gaming laptop (predator asus)

[chrome beacon]

2h is a very long time

[raw sequoia]

which vexes me

[thorn isle]

is it downloading or building

if it's downloading, what is it downloading

[raw sequoia]

rogress (1): 401/588 kB
Progress (1): 417/588 kB
Progress (1): 434/588 kB
Progress (1): 450/588 kB
Progress (1): 466/588 kB
Progress (1): 483/588 kB
Progress (1): 499/588 kB
Progress (1): 516/588 kB
Progress (1): 532/588 kB
Progress (1): 548/588 kB
Progress (1): 565/588 kB
Progress (1): 581/588 kB
Progress (1): 588 kB

Downloaded from central: https://repo.maven.apache.org/maven2/commons-collections/commons-collections/3.2.2/commons-collections-3.2.2.jar (588 kB at 889 kB/s)
[INFO] Attaching remapped artifact.
[INFO]
[INFO] --- specialsource:2.0.4:remap (remap-spigot) @ spigot ---

[chrome beacon]

It took like 15m on my 3470

[raw sequoia]

currently

[thorn isle]

are you on uh

dialup

[remote swallow]

the speeds look like that a bit

[zealous scroll]

Anyone have an idea of why some living players are returning #isDead true?

[raw sequoia]

nope, I use fiber

hmm I see

I guess I'll terminate this one

probably the wsl

[thorn isle]

where did you get the player object? they are not stable or persistent, exactly; they're liable to change when players die, relog, or change worlds

in which case an old stale player might be dead or invalid

[chrome beacon]

^

[raw sequoia]

is there other ways of downloading build tools? I was trying to get rid of this issue where some libraries are missing

import com.mojang.datafixers.util.Pair;
import com.mojang.serialization.Dynamic;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.profiling.Profiler;
import net.minecraft.util.profiling.ProfilerFiller;
import net.minecraft.util.valueproviders.UniformInt;
import net.minecraft.world.entity.Entity;

Cannot resolve symbol 'datafixers',
Cannot resolve symbol 'serialization',
Cannot resolve symbol 'ProfilerFiller', etc

[chrome beacon]

Just let it run

[thorn isle]

add those dependencies into your whatever build script

the DFU and authlib are public artifacts

[chrome beacon]

There's nms entity too

So can't just use public dep

[thorn isle]

if that one doesn't resolve with what you have, yeah, you just have to build it

there is some guy serving patched paper jars on github i think where i occasionally go to get my nms deps, but i don't remember what the repo name was

[raw sequoia]

[ERROR] Failed to execute goal on project MC_1_21_10: Could not resolve dependencies for project su.nightexpress.dungeonarena:MC_1_21_10🫙8.5.1
[ERROR] dependency: org.spigotmc:spigot🫙remapped-mojang:1.21.10-R0.1-SNAPSHOT (compile)
[ERROR] Could not find artifact org.spigotmc:spigot🫙remapped-mojang:1.21.10-R0.1-SNAPSHOT in spigot-repo (https://hub.spigotmc.org/nexus/content/repositories/snapshots/)
[ERROR] Could not find artifact org.spigotmc:spigot🫙remapped-mojang:1.21.10-R0.1-SNAPSHOT in nightexpress-releases (https://repo.nightexpressdev.com/releases)
[ERROR] dependency: su.nightexpress.dungeonarena:NMS🫙8.5.1 (compile)
[ERROR] Could not find artifact su.nightexpress.dungeonarena:NMS🫙8.5.1 in spigot-repo (https://hub.spigotmc.org/nexus/content/repositories/snapshots/)
[ERROR] Could not find artifact su.nightexpress.dungeonarena:NMS🫙8.5.1 in nightexpress-releases (https://repo.nightexpressdev.com/releases)
[ERROR] Could not find artifact su.nightexpress.dungeonarena:NMS🫙8.5.1 in central (https://repo.maven.apache.org/maven2)
[ERROR]

this what happenes when I try to install it (maven, I hate maven)

also I have no experience with nms

[chrome beacon]

What's wrong with maven

It's actually quite good

[raw sequoia]

just bias cause I use gradle mostly

[thorn isle]

i'm actually genuinely considering going back to maven from gradle now that we no longer need to reobf plugin jars

i used gradle for a while because it became a necessity for paper nms builds

but i feel like the more bells and whistles and unholy things like cached build scripts they add to it, the more fragile and more difficult to reason about it gets

not to mention that my build pipeline keeps exploding every month because somebody figured they need gradle 9.x.x for their gradle plugin that just maps an annotation into a resources .json

maven is dumb as a rock but it's also simple

i just want my paper nms jar to be on the org repo where my build tool can do exactly what build tools are meant to do; grab the dependency, shove it on the compile classpath, and compile

no nonsense, no bullshit, it just works

[raw sequoia]

yup there's beauty in simplicity

btw why does spigot build tool exe is blocked in my pc

www.spigotmc.org/wiki/buildtools

this the correct page right?

[thorn isle]

meanwhile with gradle i have to fight for half an hour with some fucked locks because the daemon crashed and oops your cached build script doesn't work because you're using references in it and oopsy poopsy it's time to spend 20 minutes rebuilding the paper nms jar because they pushed a new snapshot

[chrome beacon]

You can just run the jar if you want instead

Exe is just a wrapper and probably got false flagged because of that

[thorn isle]

it's self signed or something probably

[raw sequoia]

where?

this is weird, it also included 3 files called scoped_dir

[chrome beacon]

Same place you got the exe

They're right next to eachother

?bt

[undone axle]

https://www.spigotmc.org/wiki/buildtools/

[thorn isle]

the other day i was cleaning up my machine because i ran out of disk space; i looked at the usual suspect, .m2, and found it to be a few gigabytes, but for whatever reason .gradle was 60-something gigs

perhaps because there were like 5 caches_fucked_123 dirs under it because it keeps fucking itself over and getting stuck

[raw sequoia]

I think the blocked exe is the jar itself?

[chrome beacon]

Wdym?

[thorn isle]

click the linux button

[raw sequoia]

sent u a message on dm (can't send pic here)

[raw sequoia]

I use wsl not linux

[thorn isle]

doesn't matter

a jar is a jar

the only difference between the linux and mac buttons is the color

[raw sequoia]

this is damn weird, the window gives .exe while the linux gives a jar

[thorn isle]

yeah because windows users are generally clowns and won't know what java is or how to install it to run the jar with

or they have some legacyware java 1.2 install that came with whatever "lenovo games" from the chop shop they got the $100 laptop from

[chrome beacon]

Or the classic 32bit Java install

[raw sequoia]

btw just to be sure; this issue of mine can be solved by build tools right?

[chrome beacon]

Yeah BuildTools can grab the required stuff

Don't recall if .10 was superseeded by .11

If so just change it in the pom

[fickle spindle]

if i made a plugin with x config infos but in a new update of the plugin i add new feature in the config how can i make who used the old plugin adapt to the new config without removing their old edit?

[chrome beacon]

Load the old config add the new value then save it

[fickle spindle]

like how becuase i cam with the idea of doing getConfig().addDefault("test.enabled", true); with all the config stuff but i don't think it's the right method

[chrome beacon]

You just set with the setters

[fickle spindle]

but like in the update 1.0 i have this config

 enabled: true
 text: "test test"```
in the update 2.0 i have this config:
```test:
 item: Material.DIAMOND
 enabled: true
 text: "test test"

hello:
 enabled: true
 text: "test test"```

how can i make that the user that had the 1.0 and make the update to the 2.0 have his edited config + the new part?

[solid heart]

If feel like the type of user who is looking to run buildtools knows what java is

[chrome beacon]

Not really as it's the only (legal) way to obtain a Spigot jar

[thorn isle]

config.set("hello", myNewConfigSection)

however iirc snakeyaml as set up by bukkit still kind of mangles configs when saving them

in particular it has configured line splits every 100 chars or something

[solid heart]

There are definitely jars floating around, and server hosting websites install it for you

[chrome beacon]

You shouldn't use those

Server hosts just run bt for you so that's fine

[fickle spindle]

and if the config doesn't contains it?

[solid heart]

Yeah but I feel like most people (especially a hypothetical nontechnical person who doesn't know what java is) don't really care

[chrome beacon]

??

A config doesn't need to contain a value for you to set a value

[fickle spindle]

like how do i push an entire config section if it doens't exist to the new version?

i should do something like this?

public void setupConfig() {
        getConfig().addDefault("firstjoin_message.enabled", true);
        getConfig().addDefault("firstjoin_message.text", "&cweclome for the first time in the server! %player%");

        getConfig().addDefault("join_message.enabled", true);
        getConfig().addDefault("join_message.text", "&5Welcome %player%!");

        getConfig().addDefault("leave_message.enabled", true);
        getConfig().addDefault("leave_message.text", "&5Goodbye %player%! We hope to see you again.");
}

[chrome beacon]

vcs2 just told you how

[fickle spindle]

but should i do this each time o start the plugin?

[solid heart]

If it's already in the config you don't need to

[fickle spindle]

but if i had an old version and i added new feature how can i implement that with the 2.0?

[solid heart]

Your code looks good I think. I don't know the config api super well. It's fine to run code you don't need to if it's on startup

[thorn isle]

defaults won't help with config migration and defining them explicitly is redundant for the main config

the bundled comfig.yml resource in your jar is already used as defaults

setting defaults won't make entries appear in the file on disk; what defaults do is they provide a default value for config.get(...) when the on-disk config is missing that entry

[fickle spindle]

so if i edit it, someone upload the new version with new config info it will be his config with the new values?

[fickle spindle]

so it's useless to have something like that? i just need the config.yml

[thorn isle]

i have no idea what that means

[thorn isle]

did you try this yet?

[fickle spindle]

i'm using it with all the values i've already in the config, but if i implement something new and there was already the config.yml in the server files generated with old info how it will work? like i've added a new variable will it be implemented? how can i implement it? idk if you understood what i mean

[thorn isle]

okay so

you have a config.yml on disk, yes?

you implemented a new feature in your plugin, and now you need to add more options to the config, yes?

you want to add these options to the config that's already on disk in the plugin folder, yes?

[fickle spindle]

i do

[fickle spindle]

yes

[fickle spindle]

yes i want to add the new options in the config but i don't want to delete the one that the user already edited

[thorn isle]

1. load the config
2. check if your new things are in the config
3. if they aren't, add them with config.set(newThingPath, newThing), call config.save()

since you are loading the existing config, any changes the user has made will still be in the changed config

[fickle spindle]

how can i load the config? saveDefaultConfig();?

how can i check for new things? idk

[thorn isle]

that loads the config also, yes

if (config.has(newThingPath)) or whatever

[fickle spindle]

okay so if i have done "saveDefaultConfig();" i should be good with the loading

[fickle spindle]

should i do a check before making the action or onn plugin startup?

[thorn isle]

what saveDefaultConfig does is it checks if the file is on disk, extracting the defaults from the jar if it isn't, and then loads the file on disk

so if the config is already on disk, it behaves exactly like loadConfig

[thorn isle]

presumably before you would access those new values, yes

[fickle spindle]

okay so i should be good without further edit just saveDefaultConfig(); and i'm good

if i want to be 100% sure i make if (!config.has(newThingPath)) config.set(str, obj) right?

[thorn isle]

saveDefaultConfig will not add anything

if your goal is to change an existing config an user already has, no, you won't be good with just saveDefaultConfig

you need to manually add the missing entries with config.set

[mortal hare]

so i've wasted all of my day trying to reimplement argon2 wrapper without spring, but realized that i was doing it wrong (it works, but it just doesnt fit for me architecturally)

fml

[fickle spindle]

so i should do a check like this with each of my options for prevent anything missing if (!config.has(newThingPath)) config.set(str, obj)?

[thorn isle]

yes, and remember to save it

[umbral ridge]

you're welcome to use my https://github.com/devspexx/ConfigurationAPI

[fickle spindle]

i will check it out ty

[umbral ridge]

thank you :D

[fickle spindle]

i'm getting this warning from decades what can i do to fix it?

[23:29:00 WARN]: Exception in thread "Craft Scheduler Thread - 6" java.lang.UnsupportedOperationException: Not supported.
[23:29:00 WARN]:        at org.purpurmc.purpur.util.MinecraftInternalPlugin.getServer(MinecraftInternalPlugin.java:92)
[23:29:00 WARN]:        at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:24)
[23:29:00 WARN]:        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
[23:29:00 WARN]:        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
[23:29:00 WARN]:        at java.base/java.lang.Thread.run(Thread.java:1570)```

[buoyant viper]

?whereami

[undone axle]

https://cdn.discordapp.com/attachments/864180468680360027/944415049462714469/whereami.mp4

[fickle spindle]

oof mb xd

[limber crest]

hi, i have two 1.8.8 servers that are nearly identical with the exception of the plugins installed. I have a weird issue where guardian beams appear on one server, but not the other (although damage is still done on that server). I have already looked through all the source code for the plugins, and none of them involve anything packet related or nms related, so i have no idea why im having the issue i am having. i don't know if this is the right channel to ask this, but since the server files are almost identical (with the exception of the plugins and worlds), i figured it was something to be fixed with code and not a server file

[sullen marlin]

Are you using bungee? Does it depend on which server you join first?

[limber crest]

I am not using bungee. It doesn't matter the order, either

[fallow saffron]

That's strange, they appear for me on a 1.8.8 server, it is most likely a plugin causing the issue, what plugins is the server using?

[eager hawk]

Is there a way to easily work on plugins and test them without having to maven install, stop server, overwrite .jar, start server again every time?

[hushed spindle]

well building the plugin is pretty mandatory, which you can quicken by building directly in your plugins folder. in terms of server testing you can usually get away with a dirty reload. this all removes the need to manually replace your jar and to restart your server

reloading is rarely recommended but for simple plugin testing it's fine

[eager hawk]

Alright, ty for informing! :)

[hushed spindle]

if your project takes a long time to build as well, likely if you have several modules to build, you can involve several threads in your mvn install command to speed up that process too

[eager hawk]

I don't think it'll be that big but thanks for letting me know, might use it in the future :)

[thorn isle]

Hotswap

[onyx fjord]

yeah hotswap (works good with JBR) is useful

unless you modify some manager class (especially a map) or modify db schema

for messing with listeners particles etc. its great

and once it fails you just restart

[quaint basin]

Is there a method in Bukkit that allows me to see all player deaths and return Map<Player, Integer> or something similar?

[lilac dagger]

Maybe there's a statistic that track those

If not you might have to impl such a system yourself

[quaint basin]

It exists, but getting it from all the players is the hard part

Maybe I'll have to read it from the disk

[thorn isle]

if you're returning a Player map, loop over Bukkit.getOnlinePlayers

if you need offline players, you can getOfflinePlayers and use paper's offline player statistic api

not sure if that's async safe though, it probably isn't; i'd probably stagger it so you sync get 100 players' stats per tick or something

if you don't need backwards compatibility, i.e. it's fine for deaths to start at 0 when the plugin is installed, a database is ideal for this

[quaint basin]

Bukkit.getOfflinePlayers() is this thread-safe?

[lilac dagger]

It'll hang the thread you're in

Does it delegate to online players instead?

[thorn isle]

i don't know if it's thread safe but everybody definitely uses it async already

[lilac dagger]

If so it's not thread safe

[thorn isle]

e.g. every voting plugin ever

[chrome beacon]

If you have to ask the answer is almost always no

Doesn't stop people from using it that way though

[thorn isle]

i don't think i've ever seen it throw a cme but it might not be strictly "safe"

[quaint basin]

I need to show a leaderboard of all the players

[lilac dagger]

Get the stats once and put them in a database of your choice

[chrome beacon]

You can just read your own data in a thread safe way?

[lilac dagger]

And then continue with that

[thorn isle]

basically every vote plugin uses it under the hood to map usernames to uuid's, since the bukkit getter by name only uses the usercache, and i think there was some case sensitivity problem

[quaint basin]

I'd just like to know if had any Bukkit method for this

[thorn isle]

but yes, a database is probably better for this

[young knoll]

The offline player statistic api is part of spigot btw

[thorn isle]

neat

[quaint basin]

But supposedly Bukkit # getOfflinePlayers should be thread-safe if it only reads from disk

[thorn isle]

maybe the offline pdc api is the paper one?

[quaint basin]

I don't understand how this can't be thread-safe

[chrome beacon]

It accesses the online players too

[lilac dagger]

OfflinePlayers + checking if he's online

[chrome beacon]

it's not a pure disk read

[thorn isle]

it seems to be backed purely by the filenames in the player data dir

[lilac dagger]

It is?

[slender elbow]

the method itself doesn't really do IO other than querying for files list in playerdata dir

it's the methods in OfflinePlayer that read from the player .dat

[thorn isle]

looks like it does get from server.offlinePlayers

but that's a read, so it's "fine"

no, i'm wrong again, it does have a branch that put's into the map

oh well

hasn't blown up for me yet 🤡

[lilac dagger]

But you also probably didn't work with 1k offline players for the issue to arise

Concurency is also annoying cause it's silent most of the times

[thorn isle]

oh i have like tens of thousands of offline players

mostly because i run an offline server and occasionally some pythonoid realizes he can mineflayer 1000 bots onto the server to flex his skript kiddie skills

[quaint basin]

    public OfflinePlayer[] getOfflinePlayers() {
        PlayerDataStorage storage = this.console.playerDataStorage;
        String[] files = storage.getPlayerDir().list((dir, name) -> name.endsWith(".dat"));
        Set<OfflinePlayer> players = new HashSet();

        for(String file : files) {
            try {
                players.add(this.getOfflinePlayer(UUID.fromString(file.substring(0, file.length() - 4))));
            } catch (IllegalArgumentException var9) {
            }
        }

        players.addAll(this.getOnlinePlayers());
        return (OfflinePlayer[])players.toArray(new OfflinePlayer[players.size()]);
    }

yea this is not thread safe bc getOnlinePlayers call

[thorn isle]

getOnlinePlayers is fine, it's a read

the worst you'll get is a cme, you won't end up breaking the server internals

[quaint basin]

But I have no guarantee that it represents the updated list

[thorn isle]

what is not fine is getOfflinePlayer, since that will write to the offlinePlayers map

which could fuck it over completely

[thorn isle]

which is not destructive

the worst that'll happen is you get a cme, or your player list is like 5 milliseconds out of date

however fucking the server internals is destructive

[quaint basin]

Yes, but that's one of the requirements for the method to be considered thread-safe

[thorn isle]

there are several degrees of thread safe

[quaint basin]

Theoretically, I could get a list from years ago xd

[thorn isle]

getting potentially stale data can be considered thread safe, it depends on the contract

[quaint basin]

But yeah, that's not going to happen ig

[thorn isle]

weak consistency and whatnot; basically every database does this

what's the bigger not-thread-safe red flag is the CME

and what's even bigger is fucking the server internals

the latter is generally where i draw the line with bukkit async shenanigans

[quaint basin]

How can a CME occur here?

[thorn isle]

players.addAll

addAll is implemented via iterator

[quaint basin]

String[] files = storage.getPlayerDir().list((dir, name) -> name.endsWith(".dat"));

and this too prob

[thorn isle]

well that's just a Files io operation

playerDir isn't going to change at runtime

[quaint basin]

oh ok

[thorn isle]

filesystem access all-bets-off threading wise unless you use explicit locking anyway

[thorn isle]

as long as only my own state will get fucked, i can just e.g. catch the CME and clean up and retry; but if the server state gets fucked, there's no way I can recover from it

[lilac dagger]

But is a get safe if a player joins and the hashmap array changes size and the bucket you're trying to read is null now?

[thorn isle]

it's safe in the sense that it might blow up (for you) but it won't destroy the map

put is unsafe because it could potentially permanently brick the map

so now everyone accessing any offline player gets some arcane NPE or IOOB error

[thorn isle]

goes back to this

[quaint basin]

i see

[thorn isle]

historically hashmaps have also had a race condition where two put's could deadlock if rehashing triggers in a certain way, potentially stalling either your thread or the main thread and crashing the server

[lilac dagger]

Hmm, what about reflections to get the offline players only?

[thorn isle]

but that's some google map i think which is a different impl, and iirc the race has been fixed in the stdlib hashmap as well

[lilac dagger]

What does get offline player do?

[thorn isle]

if you wanted to do it thread safely, you could just get the player dir yourself, do the same UUID parsing as this does, but then resolve those uuid's to offlineplayers on the main thread in staggered batches

    @Override
    public OfflinePlayer getOfflinePlayer(UUID id) {
        Preconditions.checkArgument(id != null, "UUID id cannot be null");

        OfflinePlayer result = this.getPlayer(id);
        if (result == null) {
            result = this.offlinePlayers.get(id);
            if (result == null) {
                result = new CraftOfflinePlayer(this, new NameAndId(id, ""));
                this.offlinePlayers.put(id, result);
            }
        } else {
            this.offlinePlayers.remove(id);
        }

        return result;
    }

pretty write-heavy

[quaint basin]

But I don't think I can do that because I have two servers. If a player joins server X but not server Y, then that player will never appear on the leaderboard on server Y

[thorn isle]

use a database

[buoyant viper]

all roads lead to database

[wet breach]

https://klipy.com/gifs/dilbert-sql-database-mauve-pointy-haired-boss-scott-adams-corporatism-big-data

[placid rivet]

is there any way to make a horizontal line without spaces?

p.sendMessage(
Component.text("§7§m--------------------------------", NamedTextColor.GRAY)
);

something like that, but the - sticks out of the strikethrough here

[lilac dagger]

spaces instead of dashes?

&m does the rest

[placid rivet]

i want a straight line

without any space between

[lilac dagger]

that's what &m does no?

you just use spaces

just spaces

not dashes

"§7§m ",

like this

[placid rivet]

let me see

[thorn isle]

that will create a horizontal line without any gaps, yes

[placid rivet]

oh, it works

yeah ty

[thorn isle]

&n or whatever the underline code is will also create a horizontal line a few pixels lower

[placid rivet]

thought there has to be some text

[thorn isle]

protip: you can also make space bold

[buoyant viper]

me finding out u can ~~ ~~ strikethrough space on discord

[lilac dagger]

yeah, it supports a lot of cool stuff

[mortal hare]

MySQL & Oracle: These perform an implicit commit the moment they see a DDL command (like CREATE, DROP, or ALTER).

is this true?

doesnt this break transactions?

[sullen marlin]

No idea but wouldn't surprise me if you couldn't transact commands to structure

[ancient plank]

using § in a kyori component is one of the funnier things I've seen tbh

[young knoll]

I like how they have NamedTextColor.GRAY in there too

Just for good measure

[ancient plank]

yeah like

I can kind of see doing it for the decorations cus sometimes I forget how to add decorations to a kyori component (idk man, I'm stupid sometimes), but I also don't get it

[pliant topaz]

kyori is kind of a pain to add different decorations (i love the components tho),

First you have your normal text, give em a decoration. But now you have a TextComponent which you can only append new components too and not just chain the builder together

and that gets messy real fast

as an alternative kyori offers minimessage but that reads more like html and feels kinda weird to use especially because you always have to yank it through the serializer

[pliant topaz]

that actually is a feature tho so u dont need to use the builder if its just one specific decoration

[buoyant viper]

wait yeah why are u mixing legacy formatting with component 😭

?jd one sec

[undone axle]

Spigot
BungeeCord
BungeeCord Chat

[ivory sleet]

i think in java, it might be hard to find a design that minimizes verbosity entirely whilst leveraging high customizability (and ergonomics) per say

[pliant topaz]

true, but tbf, a way to instantly append text to a TextComponent instead of having to append a whole nother Component, isnt all that complicated and would benefit to the design (in my opinion)

[thorn isle]

i'm pretty sure they had an overload for that at one point

Component::append(String text)

but i guess it was too easy so they had to remove it

[pliant topaz]

[sly topaz]

I just use textOfChildren + static imports

player.sendMessage(textOfChildren(text("Something ", GRAY), text("else")))

[sly topaz]

I don't think I remember there being one, but even if there was, it'd feed into a bad pattern so I think it is the right choice to not have it

[thorn isle]

bad pattern bad shmattern, what's wrong with it

text is text

[sly topaz]

like, when you have that you have to ask yourself, at what point it stops being convenient and just boilerplate

[thorn isle]

i shouldn't have to wrap my text (String) in another text wrapper (TextComponent) just to append it to another component

[sly topaz]

if you allow yourself a handy append(String) method, then why not an append(String, TextDecoration...), may as well also add appendTranslatable(String) for translatable components

[thorn isle]

what actually IS boilerplate is me having more text(str) boilerplate in my builders than actual text being appended

i'd say plaintext is the special case because it is so ubiquitous

if i also have to pass a text decoration, there are already enough characters in play for a TextComponent wrapper to not be, relatively, as much more boilerplate

[sly topaz]

is it though? I don't think I find myself appending text that often like that, because I could just text("text" + otherText)

when you're appending a component, it means you want to modify style as well, so it ends being moot to have such a method

[thorn isle]

it mostly happens because adventure basically forces you to be passing components around instead of strings

so you don't have a "text" to append to

[sly topaz]

one just has to come to terms with the fact that it isn't just a String but a String with style definition, and that needs its own object

I think it'd be fine if you were to do it for personal purposes, but for a library you do have to consider how to avoid falling into these patterns in order to have a clean design

[thorn isle]

well, i think you're wrong and that it's ass and they should bring it back

[sly topaz]

which I know, "clean" being such a loaded term and all, most people think it is bs until you have to write a library and people end up writing henious shit because of these "convenient" patterns you added

[young knoll]

If people want to write heinous shit with my library that’s their right

[sly topaz]

people often don't want to do that, they just do because your thing is badly designed and leans into patterns which are easy to fall for the unexperienced

then they end up blaming you for their unmaintainable code

[thorn isle]

appending text to text is my right also

[ancient plank]

idc if it's kinda shitty, I just have a bunch of constants with placeholders in a messages enum that I can use so I can have all my messages in one place and use them freely

is it the best solution? nah probably not, but it works for me and lets me edit things all in one place without going around like say in the future if I change my theming around I can just change the tone/theme and wham it's done

[sly topaz]

the only issue with this is that it is all in source code

should just make a translations file and use the TranslationStore API

[thorn isle]

i hate magic string translation keys

sure you can get some ide plugin to make them navigable psi references and whatever, but i'd infinitely prefer it to be in source code

you can do both; defaults and enum identifiers in source code, but load overrides from disk

[sly topaz]

you don't need an IDE plugin for it, IntelliJ automatically infers it most of the time

[ancient plank]

these aren't ever going to change outside of plugin updates so that's a needless addition tbh

[sly topaz]

if it is a public plugin you'd want localization, if it is a private plugin and you're working with a team then they may want to edit messages without editing the source code

[ancient plank]

this is for one specific server and isn't a public plugin

the messages genuinely will have no reason to be changed outside of plugin updates

[sly topaz]

often enough a localization system pays itself off

[buoyant viper]

i have never once localized a message in my life

if u dont speak my language u dont speak my software .

[sly topaz]

are you an english native?

[buoyant viper]

yeah

[sly topaz]

makes sense then

[thorn isle]

i'm not english native and i agree that if you don't speak english you have no business dealing with my software

[ancient plank]

this server is a very specific type of server where everyone on it young or old knows english because you can't even get on the server without a decent capability to read and write

[sly topaz]

there's a reason every UI library ever offers some kind of first party i18n system, it just ends up biting you in the ass if you don't consider it from the get go in the long run

I understand the reasons for choosing just not to care are plenty, but it really doesn't hurt to just use it for good measure

[young knoll]

You underestimate me

[thorn isle]

oh but it definitely does

rather, it definitely can

[sly topaz]

only time I see it being hurtful would be when people want too much from it

[thorn isle]

keep it simple, stupid

"just for good measure" is the path to hell

and it's paved with large libraries

[sly topaz]

the moment you introduce templating into your localization files is the moment you know you've gone down the wrong path lol

[ancient plank]

unrelated but I love how there's these little boxes for colors on the side, idk if it's a plugin or what but it's yumyum

[sly topaz]

that's MCDev plugin

you can click on the boxes to get a color palette I think even

[buoyant viper]

ik intellij does it for java.awt.Color thats about it tho

[ancient plank]

yeah you can change the colors in here it's cool

[sly topaz]

it's pretty nice indeed

[ancient plank]

but no uhhh yeah localization is neat when you have use for it, but I don't like building for something where I absolutely have no need. If it's needed in the future, then sure I've built this in a way it wouldn't be difficult to implement it. But until then, nobody would ever use it because the people who make changes to these are also the same people who can make changes to the plugin (which we have CI to do building and repo updates etc etc automatically).

So it's unnecessary bloating for a feature that wouldn't ever get used

I build with intent for expandability, but do not include bloat until otherwise necessary

[echo basalt]

I keep my localization pretty loose with just a sendMessage(audience, key) kind of thing

messages.loadMessage("give-invalid-target")
  .withPlaceholder(MessagePlaceholder.of("target", targetName))
  .play(sender);

[buoyant viper]

keeping my localization minimal (non existent)

[echo basalt]

remove the key from the config if you don't want the message to be sent (links to a dummy class)

[thorn isle]

real men localize all strings on the protocol layer

[echo basalt]

eh sure

[thorn isle]

i do this for player chat already but i've yet to figure out a way how to do it sensibly for system messages

[echo basalt]

all fun and games until you want to send unformatted text

nexo had that issue for a lil while where I couldn't send unformatted text and it introduced attack vectors

by regular ppl injecting <click:run_command:/op myself> tags

[buoyant viper]

i always send unformatted text, to save on bandwidth

eye candy is bloat

[thorn isle]

e.g. someone is going to name their town "mushroom" in some language and now all command feedback and teleport commands and shit are going to be fucked because it tells you to /t spawn sieni instead of t spawn mushroom

[ancient plank]

does run command click stuff like that not run from the player's permission group

[echo basalt]

depends on how you format it

[buoyant viper]

well what if an admin clicks it

[thorn isle]

yeah i've seen this going around relatively recently

[ancient plank]

fair enough

[echo basalt]

there's a replaceText function that doesn't replace command tags

[ancient plank]

I'd say "Well admins clicking stuff willy nilly is a security problem" but well

[thorn isle]

there are a million other tags you don't want to parse as well

you can brick a client by including 1000 <head> tags

since it has to fetch all the skins

[ancient plank]

can't trust anyone to know what they're doing tbf

[young knoll]

That’s a lot of head

[echo basalt]

didn't pictogram do that to show custom motd images

[ancient plank]

woah there he is

[thorn isle]

yeees

[buoyant viper]

https://tenor.com/view/so-no-head-no-head-yes-head-good-ending-guy-breaks-skateboard-gif-268822853113774371

[thorn isle]

then mojang changed motd to not render heads in the very next version

[echo basalt]

and then reverted it for motds

I think

[thorn isle]

except they only scan components like 32 layers of nesting deep, so they nested them 33 levels deep

and then mojang put a 32 level nesting limit on components

[ancient plank]

wild

[thorn isle]

or maybe it's 64

[slender elbow]

NO FUN ALLOWED

[wet breach]

https://tenor.com/view/rule-802-gif-3261318263318932890

[buoyant viper]

if i have player data in a db that is only in-use when said player is online, should i wait for when they join to load it? or load all on server startup

[gleaming steppe]

Probably wait for when they join to load? You can load the player data into memory and then just read and write from that so you don’t need to keep making calls to your db. Save to db then flush from memory when they log out.

Loading everyone at startup is not optimal, but could work if you don’t have a huge player base? I guess just depends on your scenario.

[buoyant viper]

this is what i decided on ultimately

load on join, save&delete from mem on quit, flush dangling on server stop

eventually ill do periodic save also

[gleaming steppe]

Nice hope it works well!

[thorn isle]

Load it on async prelogin so you don't stall the main thread on join and don't need to deal with potentially incomplete data when the player is online

[vivid skiff]

Hi, I’m trying to implement a feature in my plugin that allows loading custom Blockbench models, similar to how ModelEngine works.
I’ve looked around but haven’t found much documentation. The only reference I found is a plugin written in Kotlin, but I don’t fully understand what it’s doing, and I’d prefer not to copy code without understanding it.
If anyone has experience with this or knows good resources (articles, repos, or explanations) that could help me understand how to approach this, I’d really appreciate it.

(I’m not sure if this is the best place to ask, but I’m not sure where else to look.)

Thanks!

[thorn isle]

it's an "industry secret"

for a minecraft specific example, the best chance you have at it is probably that kotlin plugin

however the principles employed are very general and you can find many tutorials and guides online for model transformations, matrices, and everything involved

the difficulty is in getting those to work with minecraft's fucked coordinate and transform system, which is entirely nonstandard in just about every way

https://www.euclideanspace.com/maths/geometry/transform/index.htm

[ivory sleet]

what exactly are you trying to do?

ME replica?

[thorn isle]

for transformations, this is a good resource, i relied on this for my game engine

[ivory sleet]

either way if u're trying to achieve some sort of "model engine", to lay the ground work:

• convert the bbmodel file into however you want to represent it in java, u prob wna check that its a valid model also here
• a model is usually a hiearchy of groups and bones, usually represent each group as its own display entity, (i think item displays is what ME uses)
• you'll have to learn (as vcs pointed out) how transformations with with a 4 by 4 matrix, but you may wna explore linear algebra concepts like quaternions, vectors etc
• you'll also need to use a bit of resource pack magic, id strongly suggest using a lib like creative for this

[vivid skiff]

Im making a vehicles plugin and wanted to make vehicles animated and add the possibily to swap parts or other similar stuff, and wanted auto resourcepack generation

[thorn isle]

that's a tall order

[echo basalt]

a strategy I did in the past was just having all the bones in at once and selectively hide them with MEG

[vivid skiff]

for the resource pack i've already written my own generator and i've already written the bbmodel file reader to convert the json into objects. Its actually converting everything into model files and putting it together the hard part for me

[vivid skiff]

i don't want to make my plugin depend on Meg, because its going to be a premium resource and making it depend on an another paid plugin just makes it too expensive to get

[young knoll]

There are free model engine like plugins

[ivory sleet]

^

[young knoll]

Some might be outdated but they'd be good to learn from

[thorn isle]

perhaps abstract the dependency into its own modules so you can depend on e.g. the free BetterModels or ModelEngine both

[vivid skiff]

i found one written in kotlin, but didn't undrestand much on how it works

[young knoll]

https://github.com/MagmaGuy/FreeMinecraftModels
https://github.com/MrLarkyy/AquaticModelEngine

[thorn isle]

people who have ModelEngine won't want to install BetterModels because it isn't exactly a drop-in replacement

but people who don't have ModelEngine won't want to buy it because mythic is shit

so supporting both might be a pretty doable option

or whatever free model plugin you pick

[young knoll]

Free Minecraft Models is pretty good from what I remember

[thorn isle]

knowing magmaguy it's probably also written in kotlin

[echo basalt]

Nah

Java for sure

[thorn isle]

iirc it doesn't even try to attempt mythic/ME compatibility, which is fine, but not ideal if you also want to optionally hook into ME

[young knoll]

Looks java to me

[echo basalt]

At some point I considered making a compat layer between all of these

[vivid skiff]

i'll look into them, i didn't want to depend on similar plugins because they add stuff that i don't need, so the idea was to add auto merge into plugins like ItemsAdder

[thorn isle]

BetterModels is nice because it sorta tries to be a drop-in replacement for ME, even though it doesn't 100% succeed at it

iirc it even implements some of the mythic skills so your $35 boss mobs you bought from mcmarket might even work with it

not relevant here in that sense, but i'd guess that will make the api surfaces more similar than e.g. ME and freemcmodels

[young knoll]

Umm aktually it’s builtbybit

[vivid skiff]

Isn't there a opensource plugin that uses displayentities instead of armorstands?

written in java

[ivory sleet]

java and kotlin aren't that much different

is there something specific you struggled understanding that was written in kotlin?

[vivid skiff]

No, i just find it a hassle to find stuff in it or the type of some vars

maybe im asking too much now, is there anyone with experience in this kind of stuff who can hop on a call with me? So i can show what i tried so far and help me impl the basics?

[ivory sleet]

wait are you reading the code in intellij or on github?

cuz icl

[vivid skiff]

github

[ivory sleet]

ah read it in intellij

much easier w kotlin code

[thorn isle]

kotlin is like all the bad things in python having a child with all the bad things in java and slithered out of the abortion bucket and developed stage 5 brain cancer

[ivory sleet]

u can activate certain inlay hints which will expose inferred types

[thorn isle]

"just ducktype shit bro who needs explicit types to know what val shit = fuck() is " but also no soft typing signatures so you get to have infinite compiler errors because some type declared 10 degrees of inference away from the actual error site was refactored

[ivory sleet]

well atleast I can filter a list in kotlin in 20 different ways with their higher order first class functions /s

[buoyant viper]

dont let @tender shard read that

[slate mortar]

did 26.1 by chance not get an api-version? or has the syntax changed

[lilac dagger]

it probably just changed

[autumn zinc]

Hi, everyone, does anyone know how to serialize ItemStack to json or something else?

[lilac dagger]

that's probably harder to do ^

[slate mortar]

cuz this do be happening on all 26, 26.1 and 26.1.1

[lilac dagger]

try serializing the map back and fort

[slate mortar]

emh whatever 1.21.11 works i guess

[lilac dagger]

weird

check the internal

[slate mortar]

just wanted to do that lol

ugh ij sucks

[lilac dagger]

go here

wait

you're on 21

not 26.1

[slate mortar]

wut

eh

[lilac dagger]

the error says you're on 1.21.11

[slate mortar]

oh yea

the fuck

does bt still build 1.21 by default?

[lilac dagger]

yes

i think so

[slate mortar]

ew

that makes sense then

[lilac dagger]

yup

just confirmed

[slate mortar]

ugh time to wait another 5 hours

surprising the plugin still loaded tho,

backwards compatibility do be a thing

[lilac dagger]

😄

as long as you use the api and you don't use nothing new it's fine

[slate mortar]

oh god i just replaced the jar at runtime

[lilac dagger]

enjoy the shutdown errors

🙁

[slate mortar]

omfg

i wondered why it took so long to move, maybe because its a mount and my internet is 500 years old

[buoyant viper]

is there a more robust way if doing some thing like

if (isInt(x)) {
  int y = parseInt(x);
} else {
 // error logic
}```

i could have a callback like
```java
if(!tryParseInt(x, y -> /* act on y */)) {
  // error logic
}```

but since primitives arent nullable i cant easily think of another solution that wouldnt lead back to callback hell

am i doomed to callbacks?

[chrome beacon]

Can always use the wrapped versions

like the jdk does

[buoyant viper]

the boxed objects?

[chrome beacon]

iirc

[chrome beacon]

yeah

[buoyant viper]

i did think about that actually

[lilac dagger]

apache has a method that get ints or default if invalid

[buoyant viper]

to use Optional and generics

[slate mortar]

wee, thanks

[buoyant viper]

parseOrDefault makes sense but like what if the value IS the default by coincidence

[lilac dagger]

hmm

what if you just

try {
int number = Integer.parseInt(string);
//your logic here
} catch (NumberFormatException ex) {
//error handling here
}

it's not as pretty but it has a clean intent

[buoyant viper]

true

[slate mortar]

could maybe inline the error part, in case it's just one line

[buoyant viper]

i just hate having try-catch LOL

[slate mortar]

its what i usually do to make it less messy

[lilac dagger]

true, but they're here for a reason, so why not use them 😄

[slate mortar]

i generally hate exception handling so much

its a gigantic performance mess sometimes

[chrome beacon]

What are you parsing?

[buoyant viper]

strings

user inputted numbers for currency calculations

[lilac dagger]

what if you put the default number as NaN?

wait nvm

it's only for Doubles

[buoyant viper]

wish we had C#'s tryParse method lol

[thorn isle]

to be fair the Integer.parseInt and Float::parseFloat javadocs do recommend for you to validate the number rather than relying on the error

it's just that floats in particular are so free-form and have so many different representations that the regex is like 300 characters

[buoyant viper]

i could check beforehand, but it doesnt erase my issue that id like to have Less code on the front-end of parsing&retrieving

integer would be straight forward enough i suppose but

[thorn isle]

what are you doing again

what are we parsing?

[buoyant viper]

parsing strings from user input to do currency calculations

so really its a floating point im parsing

[lilac dagger]

just look for 2 ints and a .

[buoyant viper]

true...

[thorn isle]

but what about my e notation

and what about the 0 before the . being optional

[buoyant viper]

fuhgetaboutit

[lilac dagger]

oh yeah true

e

[buoyant viper]

least of my worries actually

[thorn isle]

String s should constitute a FloatValue as described by the lexical syntax rules:

    FloatValue:
        Signopt NaN 
        Signopt Infinity 
        Signopt FloatingPointLiteral 
        Signopt HexFloatingPointLiteral 
        SignedInteger 

    HexFloatingPointLiteral:
        HexSignificand BinaryExponent FloatTypeSuffixopt 

    HexSignificand:
        HexNumeral 
        HexNumeral . 
        0x HexDigitsopt . HexDigits 
        0X HexDigitsopt . HexDigits 

    BinaryExponent:
        BinaryExponentIndicator SignedInteger 

    BinaryExponentIndicator:
        p 
        P 

[buoyant viper]

if it starts or ends with a . i could just fill in a zero

[thorn isle]

where Sign, FloatingPointLiteral, HexNumeral, HexDigits, SignedInteger and FloatTypeSuffix are as defined in the lexical structure sections of The Java™ Language Specification

you aren't overcomplicating it enough

you need to write a custom lexer

[buoyant viper]

TRUE

[lilac dagger]

so Double.parseDouble doesn't seem as bad to use

[thorn isle]

but yeah i'd just try catch parsefloat

[lilac dagger]

and handle the number format if thrown

[buoyant viper]

that is basically what i do

i do end up with a double-parse though so

nonperformant...

(bc i have the isX method)

[lilac dagger]

the try catch then

and handle the error in one go

[buoyant viper]

true

what if it was like

[young knoll]

Use guava and their tryParse methods

[thorn isle]

yees add the 350mb dependency for the one 3-liner method that just wraps try-catch

[buoyant viper]

Optional<Object> parseInt(String v) {
  try {
    int n = Integer.parseInt(n);
    return Optional.of(Integer.valueOf(n));
  } catch (NumberFormatException nfe) {
    return Optional.of(nfe);
  }
}```

wait i dont need the optionals i could just have type Object

sorry i was callback brained for a second

[thorn isle]

i mean if you want to check whether it's a "regular" float without the hex or scientific notation nonsense, you can just match it against \\d*\\.\\d*

which will strictly speaking treat . as a valid number, but oh well

[buoyant viper]

the . needs to be optional too

what if they just enter 26

i need to treat that as 26.00

[thorn isle]

(\\d+|(\\d*\\.\\d*))

[buoyant viper]

🙏

[thorn isle]

but yeah just try catch it

the impact from filling the stack trace is negligible

[buoyant viper]

is the pipe necessary there

[thorn isle]

it's something you have to think about when you're parsing like a 1000 line file full of numbers that are actually all invalid numbers and throw

[buoyant viper]

oh i missed the first d* in pipe

[thorn isle]

if you don't want to allow .1 , you can just \\d+(\\.\\d+)?

[young knoll]

Because using try catch is bad!!!!1

[thorn isle]

and if you're checking matches instead of find, you also need a -? at the front

[buoyant viper]

not bad just Ugly :(

[young knoll]

It’s bad according to stackoverflow

[buoyant viper]

makes my code look like a NOOB because im gonna throw an EXCEPTION

(there are plenty of other reasons my code is newbish)

[buoyant viper]

something something // REMOVE IN FLIGHT with C++ try-catch exceptions on jet plane code

https://www.youtube.com/watch?v=Gv4sDL9Ljww this thing

[buoyant viper]

lowkey using regex would probably just make it slower than double parse 😭🙏

with equally as convoluted code

actually @lilac dagger brought up a good point earlier

i could do parseOrDefault(x, NaN)

bc im working with floating point (specifically doubles)

so i could only have to parse once and compare against NaN lol

[thorn isle]

NaN is generally more trouble than nulls

since nulls throw early

nan's you have to explicitly check for

[buoyant viper]

well yes it would be

double parseDouble(String v) {
  try {
    return Double.parseDouble(v);
  } catch (NumberFormatException nfe) {
    // eat exception
    return Double.NaN;
  }
}```

```java
double n = parseDouble(input);
if (n == NaN) {
  // error handle
  return
}

// use n
...```

i still have to check for invalid no matter what, but i can get it in once parse at least

[thorn isle]

i'm saying return a nullable Double instead of a double that might be nan

[buoyant viper]

but why

[lilac dagger]

oh yeah

[thorn isle]

nan's are evil

[buoyant viper]

:(

[lilac dagger]

you could also work with Double

[thorn isle]

same with infinities

[lilac dagger]

and that allows for null

[buoyant viper]

i mentioned boxed values earlier i think lol

[thorn isle]

to be air NaN makes sense here since it'd be returned for inputs that are literally "not a number"

[buoyant viper]

or @chrome beacon did

[lilac dagger]

well, there's options

you choose what you like more tbh

[thorn isle]

but i still would't do it because honestly the moment you introduce nan's or infinities into anything, you are in for a bad time

[lilac dagger]

you could return early for infinity and nans

[thorn isle]

it's like fucking memory damage in type unsafe languages

any arithmetic operation with a nan or an infinity almost always returns nan or infinity

meaning if you let one nan loose in your database, oops everything is nan

[buoyant viper]

"Wait, its all NaN?"
"Always has been."

[lilac dagger]

wait, if you parse for double, what's the parser gonna do if user inputs NaN?

[thorn isle]

NaN

[lilac dagger]

uh oh

[thorn isle]

well i think

let me doublecheck