[1.10.2] Block age

[Sanshirou]

Is it possible to get how much time has a block been on the world? And if so, how?

 

Specifically, the block I'm trying to get it's age from are regular torches, and their only properties is "where are they facing", and then I've been trying to find something like a "getAge()" for the block, or it's BlockState, but so far I haven't been succesful on finding it.

 

The objective behind this is to make a WorldTick event to check if torches in the loaded chunks have more than X age, and if so, they break.

 

This is my first time going through this stuff, so I'm still getting lost 

[Draco18s]

The only way is to use a ticking TileEntity. There is no other way, all blocks are exactly the same.

[Draco18s]

29 minutes ago, diesieben07 said:

No need for ticking, just store the current world total time when placing the block.

Touche.

In any case, you can't get that data from arbitrary blocks (e.g, torches). You'd have to replace the block.

[Sanshirou]

Thank you for the answers.

I tried using the "Current world total time" answer, but I don't exactly know where to store it, in a simple Array it will get cleared when the game instance is closed, so I guess I'll have to find a place to store it into NBT or something.

 

If that doesn't work I'll end up using some other kind of hack.

[Draco18s]

9 minutes ago, Sanshirou said:

so I guess I'll have to find a place to store it into NBT or something.

Yes. In a tile entity.

[Sanshirou]

I'm going to sleep now, but at the end I ended up doing this:

 

public class TorchDestroyer extends TileEntity{
	private long worldTime;
	public TorchDestroyer(){
		super();
		worldTime = Minecraft.getMinecraft().theWorld.getTotalWorldTime();
	}
	public long getWorldTime() {
		return worldTime;
	}
	public void setWorldTime(long worldTime) {
		this.worldTime = worldTime;
	}
	@Override
	public NBTTagCompound writeToNBT(NBTTagCompound compound){
		super.writeToNBT(compound);
		compound.setLong("torchBorn", getWorldTime());
		return compound;
	}
	@Override
	public void readFromNBT(NBTTagCompound compound){
		super.readFromNBT(compound);
		setWorldTime(compound.getLong("torchBorn"));
	}
}

 

And then:

 

	@SubscribeEvent
	public void listTorch(PlaceEvent event) {
		if (event.getPlacedBlock().getBlock() == Blocks.TORCH) {
			TorchDestroyer n =  new TorchDestroyer();
			n.setPos(event.getPos());
			Minecraft.getMinecraft().theWorld.addTileEntity(n);
		}
	}
    
	int deathTorchTick = 0;
    
	@SubscribeEvent
	public void cancelarAntorcha(WorldTickEvent event) {
		deathTorchTick++;

		if (deathTorchTick >= 1000 && !event.isCanceled()) {
			World w = Minecraft.getMinecraft().theWorld;
			for (TileEntity obj : w.loadedTileEntityList) {
				if (obj instanceof TorchDestroyer) {
					TorchDestroyer torchKiller = (TorchDestroyer) obj;
					if (Minecraft.getMinecraft().theWorld.getTotalWorldTime() > torchKiller.getWorldTime()+ Configuracion.TORCH_DECAY_TIME) {
						if (Minecraft.getMinecraft().theWorld.getBlockState(torchKiller.getPos()).getBlock() == Blocks.TORCH) {
							Minecraft.getMinecraft().theWorld.setBlockToAir(torchKiller.getPos());
							Minecraft.getMinecraft().theWorld.removeTileEntity(torchKiller.getPos());
						} else {
							Minecraft.getMinecraft().theWorld.removeTileEntity(torchKiller.getPos());
						}
					}
				}
			}
			deathTorchTick = 0;
		}
	}

 

And for now it works (In singleplayer), I don't know if I should rename the post in case someone has a trouble like this

 

Will this have any troubles when moving it to a multiplayer environment?

[Draco18s]

2 minutes ago, Sanshirou said:

Will this have any troubles when moving it to a multiplayer environment?

Yes.

2 minutes ago, Sanshirou said:

Minecraft.getMinecraft().theWorld.addTileEntity(n);

Because that is client side only.

[Sanshirou]

Hmmm, that's because "theWorld" is an instance of "ClientWorld", right?

 

I'll check on ways to get "World" by itself.

[Daeruin]

One thing you might want to think about is what happens if someone breaks the torch and picks up the ItemBlock. Should the torch last forever in their inventory? What if they re-place the torch? Do you start the countdown over again? You might consider creating your own Block and/or ItemBlock. You could use a tile entity for the block and the damage field of the ItemBlock to keep track of their age.