Help with NBT!

[ThePizzaBoy-]

Hello,

 

Basically I have made a furnace and it works 99.9% the only thing that does not work and is probably the biggest thing is the read/write from/to NBT methods. I have reviewed countless tutorial and whenever they did it, it seemed to work, but when I do it, it does not work. I looked at the minecraft furnace code in the TileEntityFurnace class and noticed no differences between that code and mine.

 

Please tell me what I have done wrong and hint me towards a solution so that I can actually learn from this.

 

Thank you in advance!

 

 

/** Reads a tile entity from NBT. */    
    public void readFromNBT(NBTTagCompound nbt) {
        super.readFromNBT(nbt);
        NBTTagList nbttaglist = nbt.getTagList("CFItems");
        this.cfslots = new ItemStack[this.getSizeInventory()];

        for (int i = 0; i < nbttaglist.tagCount(); ++i)
        {
            NBTTagCompound nbttagcompound = (NBTTagCompound)nbttaglist.tagAt(i);
            byte b0 = nbttagcompound.getByte("CFSlot");

            if (b0 >= 0 && b0 < this.cfslots.length)
            {
                this.cfslots[b0] = ItemStack.loadItemStackFromNBT(nbttagcompound);
            }
        }

        this.cfBurnTime = nbt.getShort("CFBurnTime");
        this.cfCookTime = nbt.getShort("CFCookTime");
        this.cfCurrentItemBurnTime = getItemBurnTime(this.cfslots[1]);

        if (nbt.hasKey("CFCustomName"))
        {
            this.localizedName = nbt.getString("CFCustomName");
        }
    }
    
    /** Writes a tile entity from NBT. */ 
    public void writetoNBT(NBTTagCompound nbt) {
        super.writeToNBT(nbt);
        nbt.setShort("CFBurnTime", (short)this.cfBurnTime);
        nbt.setShort("CFCookTime", (short)this.cfCookTime);
        NBTTagList nbttaglist = new NBTTagList();

        for (int i = 0; i < this.cfslots.length; ++i)
        {
            if (this.cfslots[i] != null)
            {
                NBTTagCompound nbttagcompound = new NBTTagCompound();
                nbttagcompound.setByte("CFSlot", (byte)i);
                this.cfslots[i].writeToNBT(nbttagcompound);
                nbttaglist.appendTag(nbttagcompound);
            }
        }

        nbt.setTag("CFItems", nbttaglist);

        if (this.isInvNameLocalized())
        {
            nbt.setString("CFCustomName", this.localizedName);
        }
    }
    

[Draco18s]

Did you register your tile entity?

[ThePizzaBoy-]

Did you register your tile entity?

 

I did that is there anything else that could be the issue?

[Mazetar]

Yes several.

 

Use breakpoints located at the begining of the write and read methods.

Check that they are called and the values of all the variables of your TE as the write method is called.

Is it called at all? If so, does the TE have the correct values at the time?

 

If thats all good, let us know so and also tell us if the read method is called and wether it retrives the correct values or not

 

If it does not read the correct values then you have a syncing issue, look into posts about syncing TEs.

[ThePizzaBoy-]

Yes several.

 

Use breakpoints located at the begining of the write and read methods.

Check that they are called and the values of all the variables of your TE as the write method is called.

Is it called at all? If so, does the TE have the correct values at the time?

 

If thats all good, let us know so and also tell us if the read method is called and wether it retrives the correct values or not

 

If it does not read the correct values then you have a syncing issue, look into posts about syncing TEs.

 

All right thanks I'll try that and get back to you on that. Thanks again for the advice

[ThePizzaBoy-]

Yes several.

 

Use breakpoints located at the begining of the write and read methods.

Check that they are called and the values of all the variables of your TE as the write method is called.

Is it called at all? If so, does the TE have the correct values at the time?

 

If thats all good, let us know so and also tell us if the read method is called and wether it retrives the correct values or not

 

If it does not read the correct values then you have a syncing issue, look into posts about syncing TEs.

 

It seems as though the read/write methods do not get called at all. I added break points at the beginning of each method and nothing happened, I even put system out print lines in multiple parts of each method and returned no results. I am now going to look at syncing and see what that entails. But I do appreciate the help, thank you.

[Mazetar]

If the read and write methods are not being called then it's not a syncing problem (atm ).

 

The problem is either:

1. Your TileEntity is not getting registered. Check that the line registrating it is indeed getting called (printline should suffice)

 

2. Does your write and read methods match the ones in the TileEntity class you are overriding? You can check this manually but the simplest way is to just add @Override to the line above the method. Then eclipse will check that it's correctly overriding a method or mark it as an error

[ThePizzaBoy-]

If the read and write methods are not being called then it's not a syncing problem (atm ).

 

The problem is either:

1. Your TileEntity is not getting registered. Check that the line registrating it is indeed getting called (printline should suffice)

 

2. Does your write and read methods match the ones in the TileEntity class you are overriding? You can check this manually but the simplest way is to just add @Override to the line above the method. Then eclipse will check that it's correctly overriding a method or mark it as an error

 

Oh alright gotcha . By the way thank you for all your advice it is EXTREMELY helpful.

 

PS. DUDE you will not believe what my problem was. right after I put in the @Override on the writeToNBT method I got an error, that error occurred because I name the method writetoNBT not writeToNBT, so when I called the super.writeToNBT it didn't recognize the method writetoNBT so I changed it and now it works perfectly.

 

Thanks again!