backrooms

[vernal plank]

hi

[gray linden]

hi, so

you want to paste a schematic basically "all the time", like every tick?

[vernal plank]

Yea,

[gray linden]

that'll spam the whole world with your schematic, right?

[vernal plank]

Yea

Its going to generate the backrooms

basically

[gray linden]

no idea what backrooms are, but - if you want to run something all the time, you don't want to use any events or commands, you want to schedule a runnable that runs every tick

and you want it to loop over all online players

gimme a sec, I'll send you a short example

[vernal plank]

alright

[gray linden]

    @Override
    public void onEnable() {
        Bukkit.getScheduler().runTaskTimer(this, () -> {
            for(Player player : Bukkit.getOnlinePlayers()) {
                System.out.println(player.getName() + " is currently in the following world: " + player.getWorld().getName());
            }
        }, 1, 1);
    }

this would simply print out "mfnalex is in world world", "anotherPlayer is in world world_nether" etc every tick

so yeah, this runs for every player, every tick

[vernal plank]

alright, how could I implement this

[gray linden]

note that it already defined the "player" variable in the for loop

well you could just replace the System.out.println(...) thing with your "paste schematic" stuff

[vernal plank]

kk

[vernal plank]

so this would also paste a schematic up to a certain distance when the player walks

[gray linden]

that depends on what location you put into the "paste" method of WorldEdit, ofc

I really think you should start with something more easy

e.g. make a command called /testpaste

and that will paste the schematic every time you run the command, at the desired distance

when you got that working, you can move it into the scheduler thing

it's way easier to do things step by step

[vernal plank]

Alright

[vernal plank]

Is there a place I can put the runnable?

Or is it strictly in OnEnable?

[gray linden]

the only proper place is to use onEnable() in 99% of cases

[vernal plank]

Alright

Tysm

[gray linden]

if you think it gets too large, you can just move it into your own method

for example:

    @Override
    public void onEnable() {
        Bukkit.getScheduler().runTaskTimer(this, () -> {
            System.out.println("First line of code");
            System.out.println("Second line of code");
            System.out.println("Third line of code");
            System.out.println("Fourth line of code");
            System.out.println("Fifth line of code");
            System.out.println("Sixth line of code");
            System.out.println("Seventh line of code");
        }, 1, 1);
    }

This is a bad idea

    @Override
    public void onEnable() {
        Bukkit.getScheduler().runTaskTimer(this, this::doStuff, 1, 1);
    }

    private void doStuff() {
        System.out.println("First line of code");
        System.out.println("Second line of code");
        System.out.println("Third line of code");
        System.out.println("Fourth line of code");
        System.out.println("Fifth line of code");
        System.out.println("Sixth line of code");
        System.out.println("Seventh line of code");
    }

this is a better idea

[vernal plank]

alright

[gray linden]

if you're confused about the () -> { ... } or the "this::doStuff" part, please read this: https://blog.jeff-media.com/understanding-lambdas-and-method-references/

I wrote this a year ago because I myself was quite confused about this notation at first

[vernal plank]

Thank you very much for your help,

Totally appreciate it

[gray linden]

np, that's what this discord is for 🙂

but please listen to my advice to do steps one after another

first, just create a simple command that places your schematic next to the player who ran the command

when you got that working, then you can make it run every tick for every player

[vernal plank]

Ok @gray linden

it worked with the ommand

command

[gray linden]

okay, please show your command code

you should be able to just move it into the scheduler thing quite easily

[vernal plank]

Yea, I did already

QUite easily

[gray linden]

ah ok

so everything's working now?

[vernal plank]

Something I found funny hwoever

[vernal plank]

Is this screenshot

screenshot imminent

[gray linden]

sorry I don't understand what you're trying to say lol

[gray linden]

aaah

[vernal plank]

it like doesnt generate the full thing

[gray linden]

"screenshot imminent" means "there's a screenshot coming soon" lol

[vernal plank]

so confuse

xdd

[gray linden]

didnt know that lol

[vernal plank]

actually, this seems fine lol

its generating random shit

[vernal plank]

Thank you soo much

Man you saved me 5 days of work

Thank you

[gray linden]

no problem :3

[vernal plank]

@gray linden , here comes the errors lol

It seems the schematic is running away from the user

Like the bottom and top are good

but the corridors

etc

are like running away lol

[gray linden]

well then your "location" logic is flawed

maybe ask in the "main thread" again, I cannot help you with any math stuff

[vernal plank]

Alright ty

[vernal plank]

So, how do I make a hashmap to check if the playter is in a new chunk

[main heart]

hey there tahd

[vernal plank]

Ho

Hi

[main heart]

ima do the Hashmap thing alex dw

[vernal plank]

ty

[main heart]

have you ever seen a HashMap?

[vernal plank]

btw i am making the bckrooms

[vernal plank]

No, not really, relatively new to Java

[main heart]

ok hold on

https://www.w3schools.com/java/java_hashmap.asp
This should be a pretty good resource

[gray linden]

a hashmap maps two values together

e.g. Name -> Age
mfnalex -> 27
mfnalex's father -> 67

[main heart]

basically what you do is you take the UUID of the player as a key and a Chunk as the value, then each tick you check whether map.get(uuid).equals(Bukkit.getPlayer(uuid).getLocation().getChunk)

[vernal plank]

Ok, should I set it as a varible?

[main heart]

and you have yourself something that will give you a boolean value on whether the player just entered a new chunk.

[main heart]

depends on your use for it

but I suggest having it in a controller class or so that only manages that HashMap

[vernal plank]

Im trying to check if a chunk is new to paste a schematic or not

[main heart]

you can do that with a cache, yes

[vernal plank]

Well how..

[main heart]

you make a HashMap<UUID, Chunk>, preferably somewhere where you can easily access it.

then you can put the uuids of the players you wanna check in there and link it to their current chunk with the put() method in the map

then you have a current and up to date view of what chunk a player is in

[vernal plank]

what if I want to check for all online players?

[main heart]

A HashMap can contain many key value pairs

you just do it for all players

[vernal plank]

manually?

[main heart]

you would have an init() method that puts the uuid and chunk of each player in the map

and then maybe whenever another player joins you would add them

[vernal plank]

hmm

[main heart]

Bukkit.getOnlinePlayers() gives you a collection of all online players 🙂

[vernal plank]

yea

so like

[vernal plank]

ifNewChunk.put(Bukkit.GetOnlinePlayers())?

oh

lmao

ok

[main heart]

hold on, I'll make you a better example

[vernal plank]

hi

[main heart]

one second

https://paste.md-5.net/nicazeyivo.cs

there ya go. I hope that clears up a few of the HashMap functionalities

[vernal plank]

alr

[main heart]

the checkForNewChunk method will check whether the player is registered, if not the key value pair will be added and false will be returned. if the player is registered the old chunk will be checked against the current chunk of the player and true or false will be returned accordingly, updating the value for the player if they are in fact in a new chunk

[vernal plank]

alright, also it says for me that example cache has to be publc voi

[main heart]

the name of the class has to be used for constructors

my class was named "ExampleCache"

yours would be different

for example "ChunkCache"

but I do suggest having it in its own class

Ive gotta go, I hope that cleared it up a bit

[vernal plank]

alright, ty,

Can I send you my code

I repurposed it

[main heart]

Sure

[vernal plank]

https://paste.md-5.net/nodaqobuyi.java

[main heart]

I meant a new class file, not a class inside a method

[vernal plank]

oh heh, i totally knew that 😅

[main heart]

Also the method should only tell you whether the player is or is not in a new chunk, you should keep it that way

[vernal plank]

Ok, ok

so

hol don

[vernal plank]

how might I implement it into the main class?

[main heart]

You create a new Cache for your main class and then call its methods from there when needed

[vernal plank]

ok

[vernal plank]

so public ChunkCache2() {
this.cache = new HashMap<>();
}

[main heart]

Not sure what you mean

A new ChunkCache object

[gray linden]

why not just create the map directly in the declaration?

public class MyClass {
  private final Map<String,Object> myMap;
  
  public MyClass() {
    this.myMap = new HashMap<>();
  }
}

The above will work, but this is cleaner:

public class MyClass {
  private final Map<String,Object> myMap = new HashMap<>();
}

[main heart]

Could do that, not really a difference

Maybe a bit more readble tho, yeah

[vernal plank]

wait im kinda dumb, but will this work?

if(ChunkCache = true){

stuff here

}

@main heart

nvm

it wont

[main heart]

You can call the method to check whether a player is in a new chunk on an object of the ChunkCache, not the class directly. Unless you make everything static that is

[vernal plank]

Im trying to call it but it doesn't seem to recognize the method

[main heart]

You cant do = true

It would set the thibg before the = to 'true'

You are using the class, not an object

[vernal plank]

so if it returns true?

[main heart]

Please learn how to use objects in java and then come back

[vernal plank]

Pretty dumb lmao

figured it out

[main heart]

Ill be here again tomorrow, gotta go now

[vernal plank]

@main heart

[whole ermine]

create a class that holds the WorldId, chunkX and ChunkY

[vernal plank]

How might I do it?

[whole ermine]

What exactly is this chunk cache supposed to do? It seems to just remember the last chuink a player was in

[vernal plank]

its supposed to keep track of if a player is in an old chunk or new chunk

so it can paste a schematic at a new chunk

instead of an old chunk

[whole ermine]

if a player moves to any chunk it's going to be "new"

even if he moves one block left, into a new chunk, then moves back

[vernal plank]

So how could I paste the schematics for chunks that are newly loaded?

like on first render

[whole ermine]

you want to paste in every new chunk thats generated?

[vernal plank]

new chunk near the player

[whole ermine]

"near" the player is going to depend on a lot of things. Render distance for one

[vernal plank]

A set distance

like 2-3 chunsk near the player

or 4-5 chunks

at random rotations

[whole ermine]

You don;t seem to understand how chunks load...

they are loaded by the server upto a radius about each player

[vernal plank]

yea..

[whole ermine]

16 chunk diameter I believe

[vernal plank]

ok

[whole ermine]

so 8 in each direction

[vernal plank]

Im trying to do the same thing with the schematics

[whole ermine]

when the world first loads there will be no players

[vernal plank]

except shorter

[vernal plank]

yea ik

[whole ermine]

so no one to paste any schematics near

what do you class as a "new" chunk?

[vernal plank]

wdym

[whole ermine]

what are your requirements for a chunk to be recognised as "new"

[vernal plank]

if no one has loaded it before.

[whole ermine]

so do ALL chunks that are generated get this schematic pasted in them?

[vernal plank]

basically, with my current code, without the chunk check, it fills up storage by spamming schematics for old chunks

[whole ermine]

as they are all new chunks

[vernal plank]

yep

[whole ermine]

so you want your schematic paste in every chunk basically, but not in chunks it's already been pasted in

[vernal plank]

yea

[whole ermine]

what is this about "near a player"?

[vernal plank]

Well I tried loading it in ALL loaded chunks, but my test server could not handle it

so i decided to take the player location

and paste it at that instead

[whole ermine]

if every chunk is new (at some point) and the schematic shoudl be paste, where is teh player requirement?

What exactly is this schematic you want to paste?

?

[vernal plank]

Sorry I was eating

[vernal plank]

I was eating sorry

[vernal plank]

The player requirement is in the code

Specifically the runnable

It is supposed to take any new chunk that hasn't been loaded before near the player

And paste the schematic on it.

@whole ermine

[vernal plank]

Its the backrooms

Hence the name of this thread

[whole ermine]

no idea what backrooms is

[vernal plank]

An infinite maze with multiple levels for a tldr

[whole ermine]

if you want every chunk to have a backroom you should use the chunkloadevent

[vernal plank]

Thays too laggy

It crashes my test server

[whole ermine]

you schedule a task if event.isNewChunk()

If you are using AsyncWorldEdit it will manage teh workload

[vernal plank]

Still laggy

Player location based has worked best for me so far

I just wanted to check

[whole ermine]

if you want it pasted in every chunk then you need to use teh load event

[vernal plank]

If the player has entered or gotten close to a new chunk

Run my runnable code

[whole ermine]

Your way is not really going to work as you would need to track every chunk thats loaded across every session

[vernal plank]

Cant that be done with a cache?

Like the messages before this in the thread

@whole ermine or could I make it so it only pastes 1 time

For each Chunk?

[whole ermine]

thats why I'm saying to use the loadevent

it marks each chunk load as new or not

all you have to do is sort how you paste your schematic

you could even setup a queue system so you can delay each paste

[vernal plank]

Eh

Queuing it seems hard

[whole ermine]

its not that hard. I implement a queue system in my explosion regen plugin

sec

[vernal plank]

Can I have an example of a queue system??

Also can I not implement a chunkLoad event into what I already have?

Like if(e.isNewChunk)
{
Runnable here
}

[whole ermine]

https://github.com/ElgarL/Regen/blob/master/src/com/palmergames/spigot/regen/TaskHolder.java

[vernal plank]

Uhhh

[whole ermine]

That has two queues. One to regen a list of blocks and one for Entities

you would implement one queue to fire your paste

[vernal plank]

Can you make me an example in my case??

I don't get it

[whole ermine]

not really. My IDE is not open and I'm watching smallville with my wife.

[vernal plank]

Alright

I'll try when I get home