Prevent lava to obsidian

I have to prevent transform of lava to obsidian when water placed nearby of lava source. My solution is watch when bukkit will be empty and when placed water cancel this. But idk suitable names of events. Thanks for help.

 

idk exactely what you want:

There is a PlayerBucketEmpty event, which returns
Player who, Block BlockClicked, BlockFace blockFace, Material bucket, ItemStaxk itemInHand

 

Try cancelling the BlockFormEvent

 

@Second_Vynder
To add onto what @HeartandSoul posted, that BlockFormEvent is called when a block is "formed" (water to stone, lava to obsidian, ect.). What you want to do is check if the formed block is obsidian, and if so, cancel the event.

 

I did so:

Code:

    @EventHandler
    public void onObsidianForm(BlockFormEvent event) {
        if(event.getBlock().getType() == Material.OBSIDIAN)
            event.setCancelled(true);
    }

But i got nothing. Lava transforms to obsidian.

 

@Second_Vynder
If your problem has been solved, mark this thread as solved.

 

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@Zombie_Striker I know forum's standarts, bro. Yesterday I was not a home and didn't checked code.

My solution isn't working. Where I am did wrongly:c

PHP:

    @EventHandler
    public void onObsidianForm(BlockGrowEvent event) {
        if(event.getNewState().getType() == Material.OBSIDIAN)
            event.setCancelled(true);
    }



 

@Second_Vynder
Well, didn't we agree that the event was called BlockFormEvent, not BlockGrowEvent?

 

@AlvinB emm? I tried BlockFormEvent and BlockGrowEvent

BlockFormEvent (open) BlockFormEvent (close)

PHP:

    @EventHandler
    public void onObsidianForm(BlockFormEvent event) {
        if(event.getBlock().getType() == Material.OBSIDIAN)
            event.setCancelled(true);
    }


BlockGrowEvent (open) BlockGrowEvent (close)

PHP:

    @EventHandler
    public void onObsidianForm(BlockGrowEvent event) {
        if(event.getNewState().getType() == Material.OBSIDIAN)
            event.setCancelled(true);
    }


 

Are you registering the listener?

 

@Second_Vynder
Well, you forgot the "getNewState()" in the BlockFormEvent one.

 

@AlvinB @ZP18 Still isn't working.

Full code (open) Full code (close)

PHP:

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockFormEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class DisableLavaToObsidian extends JavaPlugin implements Listener{
    @Override
    public void onEnable(){
        Bukkit.getPluginManager().registerEvents(this, this);
    }
    @Override
    public void onDisable(){
    
    }
    @EventHandler
    public void onObsidianForm(BlockFormEvent event) {
        if(event.getNewState().getType().equals(Material.OBSIDIAN))
            event.setCancelled(true);
    }
  
}



May be I need other event? Cuz this didn't working also:

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PHP:

import org.bukkit.Bukkit;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockFormEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class DisableLavaToObsidian extends JavaPlugin implements Listener{
    @Override
    public void onEnable(){
        Bukkit.getPluginManager().registerEvents(this, this);
    }
    @Override
    public void onDisable(){
       
    }
    @EventHandler
    public void onObsidianForm(BlockFormEvent event) {
            event.setCancelled(true);
    }
     
}



 

That certainly is strange if that doesn't stop it... I think you actually have to use the BlockPhysicsEvent but I'm not 100% sure.

Yes you should use the == operator instead of .equals() for comparing enumerations but that is not what is causing his code not to work, as he stated.

@Second_Vynder your best hope is to try different block events, I suggest trying the BlockPhysicsEvent as well as the BlockFromToEvent


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Well, sure it's not their problem as of now, but it could be later.

@Second_Vynder The best thing to do now would to check if the event is even being fired in the first place. Try to debug your code.

 

Yes I know it would @CodePlaysMinecraft
Also he made just a plain listener with no checks to cancel the event every time. But it did not stop the obsidian from forming, that's why I suggested trying BlockPhysicsEvent and BlockFromToEvent


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@Second_Vynder
What if you try canceling BlockFromToEvent: This event is triggered when a block like water or lava moves to another block. For this, check if the block it is moving to is water, and if so, cancel the event.

 

I got nothing again :c

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PHP:

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockFromToEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class DisableLavaToObsidian extends JavaPlugin implements Listener{
    @Override
    public void onEnable(){
        Bukkit.getPluginManager().registerEvents(this, this);
    }
    @Override
    public void onDisable(){
       
    }
    @EventHandler
    public void onObsidianForm(BlockFromToEvent event) {
        Block target = event.getToBlock();
        Material targetMaterial = target.getType();
        if(targetMaterial == Material.STATIONARY_LAVA || targetMaterial == Material.LAVA){
            target.setType(Material.STONE);
            event.setCancelled(true);
        }
    }
     
}


 

Have you tried the BlockPhysicsEvent?


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As I know, BlockPhysicsEvent does not works with obsidian

My test code (open) My test code (close)

PHP:

    @EventHandler(priority = EventPriority.HIGHEST)
    public void onObsidianForm(BlockPhysicsEvent event){
        Material block = event.getBlock().getType();
        Bukkit.broadcastMessage(block.toString());
    }


When lava transforms to obsidian, I getting nothing about obsidian in the chat (just LAVA or WATER or AIR or STATIONARY_WATER/STATIONARY lava) :c
And getChangedType also returns STATIONARY_LAVA/STATIONARY_WATER without obsidian.
Any suggestions, comrades?

 

I'll do some tests soon and let you know how I go

 

But if you cancel the event wont the event happen just after again? So the server keeps firing the event? Also players with big enough water to obsidians farms could in theory lag the server?

 

Well, when lava has to prevent to obsidian I want to replace lava source on something like stone.

 

I have a project going on so i cant look into this right now but i will sdon if you cant figure it out.

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I will be grateful for the help.

 

I dont think there is a way to do this.

 

Maybe with NMS?


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I'd say if you don't rid of the water I'd agree with this, someone try deleting the water source as soon as the event gets cancelled and see if that does anything, I'll test this when I get home but can't right now. You could also try setting the material that got turned into obsidian back into lava and see if that helps at all, that's all I can think of that might work right now.

 

The thing is the event doesnt get called. It does not return anything near obsidian then it should be a lava with a specific data tag but that shouldnt be the case.

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