Tile Entity Data not saving

nike4613 · September 7, 2014

I have a tile entity that updates on right-click with certain items. Whenever I relog, the contents of the jar I'm making is deleted. Any help is appreciated!

Code:

Reveal hidden contents

TileEntityJar.java:

package net.mc42.mods.eclipses.tileentities;

import net.mc42.mods.eclipses.mod_Eclipses;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;
import net.minecraftforge.fluids.Fluid;
import net.minecraftforge.fluids.FluidRegistry;
import net.minecraftforge.fluids.FluidStack;

public class TileEntityJar extends TileEntity {

private FluidStack contents;
private int amRst;
//private int capacity;

public TileEntityJar(){
	contents = new FluidStack(0, 0);
	amRst = 0;
	//setFluid(mod_Eclipses.lunarEssence);
	//setAmount(2100);
}

public void setFluid(Fluid f){
	contents = new FluidStack(f, amRst);
}

public void setAmount(int i){
	contents.amount = i;
	this.amRst = i;
}

public boolean remove(int mb){
	if(contents.amount >= mb){
		contents.amount -= mb;
		amRst = contents.amount;
		if(contents.amount == 0)
			contents = new FluidStack(0, 0);
		return true;
	}
	return false;
}

public boolean add(int mb){
	if(!(contents.amount + mb > mod_Eclipses.JarCapacity)){
		contents.amount += mb;
		if(contents.amount == 0)
			contents = new FluidStack(0, 0);
		amRst = contents.amount;
		return true;
	}
	return false;
}

public int getPercentFull(){

	//System.out.println((contents.amount/(float)mod_Eclipses.JarCapacity)*(float)100);
	return Math.round((contents.amount/(float)mod_Eclipses.JarCapacity)*(float)100);
}

public boolean hasFluid(Fluid f) {
	// TODO Auto-generated method stub
	return contents.isFluidEqual(new FluidStack(f, 0));
}

@Override
public void writeToNBT(NBTTagCompound par1)
{
   super.writeToNBT(par1);
   NBTTagCompound par2 = new NBTTagCompound();
   par2.setInteger("Amount", contents.amount);
   par2.setInteger("FluID", contents.fluidID);
   System.out.println("Saving... " + contents.amount + " " + contents.fluidID);
   //par2 = contents.writeToNBT(par2);
   par1.setTag("Content", par2);
}

@Override
public void readFromNBT(NBTTagCompound par1)
{
   super.readFromNBT(par1);
   //this.contents.loadFluidStackFromNBT((NBTTagCompound) par1.getTag("Content"));
   NBTTagCompound par2 = new NBTTagCompound();
   par2 = (NBTTagCompound) par1.getTag("Content");
   int amo = par2.getInteger("Amount");
   int id = par2.getInteger("FluID");
   System.out.println("Loaded " + amo + " " + id);
   contents = new FluidStack(id, amo);
   amRst = contents.amount;
}
}

TheGreyGhost · September 7, 2014

Hi

you need to override

onDataPacket and getDescriptionPacket

for the TileEntity. Otherwise there is no way for the server to tell the client what the contents of the jar are.

This example code for 1.6.4 shows you a working example.

https://github.com/mnn/jaffas/blob/59b59f01a1f2f6b21b0dc87e5a15e6761a3f3f19/src/minecraft/monnef/jaffas/food/block/TileEntityPie.java#L117

Should still work in 1.7 with some tweaking (i.e. Packet name change)

-TGG

nike4613 · September 7, 2014

Do you know what to change the names to?

TheGreyGhost · September 7, 2014

Hi

The vanilla and forge code show the way forward....

TileEntity::
    /**
     * Called when you receive a TileEntityData packet for the location this
     * TileEntity is currently in. On the client, the NetworkManager will always
     * be the remote server. On the server, it will be whomever is responsible for
     * sending the packet.
     *
     * @param net The NetworkManager the packet originated from
     * @param pkt The data packet
     */
    public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity pkt)
    {
// your code here
    }

Similarly getDescriptionPacket should return the same S35 packet.

-TGG

Whov · September 7, 2014

Tutorial (not mine)

daafganggdg · November 24, 2014

Alright thats what I came up with:

    
@Override
public Packet getDescriptionPacket()
    {
    	NBTTagCompound nbt = new NBTTagCompound();
	nbt.setInteger("meta", this.blockMetadata);
        return new S35PacketUpdateTileEntity(this.xCoord, this.yCoord, this.zCoord, 1, nbt);
    }
    
@Override
    public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity pkt)
    {
    	super.onDataPacket(net, pkt);
    	this.blockMetadata = pkt.func_148857_g().getInteger("meta");
    }

in my TileEntity

and in the renderer:

	@Override
public void renderTileEntityAt(TileEntity entity, double x, double y, double z, float f) {
//....
	int m = entity.blockMetadata;
//....

But still not working

gline9 · November 24, 2014

instead of sending the meta data using

nbt.setInteger("meta", this.blockMetadata);

you can use the write nbt and read nbt code you already have to retrieve the tile entity data. i.e.

this.readFromNBT(nbt);

and

this.writeToNBT(nbt)

daafganggdg · November 24, 2014

On 11/24/2014 at 5:01 PM, diesieben07 said:

Why do you synchronize the metadata...

Use world.getBlockMetadata.

		nbt.setInteger("meta", worldObj.getBlockMetadata(xCoord, yCoord, zCoord));

alright now its working, thanks

Draco18s · November 24, 2014

No no no no.

Don't send your metadata in the packet at all! Block metadata is already synced between client and server.

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Tile Entity Data not saving

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