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Saving a CompoundTag inside the root tag


Curlip

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Ok so I've been working with NBT and some custom interfaces, my problem is that I can't figure out how to save a Compound to the root of an ItemStack.

 

Their is no setTagCompound() method and the closest I can find is merge(), anyway heres my code.

 

if(!stack.hasTagCompound()){
    stack.setTagCompound(new NBTTagCompound());
}

NBTTagCompound save = this.getCharger(stack).save();

for(Object key : save.getKeySet()){
    stack.getTagCompound().getCompoundTag("Charger").setTag((String) key, save.getTag((String) key));
}

 

This is in the onUpdate method, .save() is a method that returns an NBTTagCompound.

 

Also, is there a method I can override so I don't have to put this in onUpdate(), eg. onLoad, onSave.

 

- Curlip

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I can't figure out how to save a Compound to the root of an ItemStack.

 

stack.setTagCompound(new NBTTagCompound());

 

Like that.  Its magic.  You now have NBT data and can start storing things into it.

 

stack.getTagCompound().setWhatever("Key",value);

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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I can't figure out how to save a Compound to the root of an ItemStack.

 

stack.setTagCompound(new NBTTagCompound());

 

Like that.  Its magic.  You now have NBT data and can start storing things into it.

 

stack.getTagCompound().setWhatever("Key",value);

 

I need to save a second compound in the structure:

 

{

    Charger:{

        tags...

    }

}

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NBTTagCompound nbt = stack.getTagCompound()
if(nbt == null)
{
    nbt = new NBTTagCompound();
    stack.setTagCompound(nbt);
}

nbt.setCompoundTag("Tag1", new NBTTagCompound());
nbt.setCompoundTag("Tag2", new NBTTagCompound());

 

Will produce stack with:

NBT
>>Tag1
>>Tag2

 

Each tag is treated like NBTTagCompound, e.g you can save:

NBT
>>Tag1
>>>>String:"LOL"
>>>>Integer:5
>>Tag2
>>>>String:"LOL2"
>>>>Integer:10

 

I belive you just didn't fully understand NBTs structure - they are just maps that can contain objects - and those objects also can be maps (NBTTagCompounds)

 

EDIT: P.S: If you want direct heelp, post full code dammit! :D

1.7.10 is no longer supported by forge, you are on your own.

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It absolutely exists.  Vanilla does tags-within-tags for a ton of things.  For instance, chunk data is an NBT tag that contains the NBT tags of all the entities in that chunk.

Enchantments are stored as an NBTTagList, IIRC, as well.

 

So yes, it absolutely exists.  Whether or not the name has been de-SRGed, I don't know.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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It's #setTagCompound... but you should have been able to find that out in < 1 second by just typing 'stack.set' in your IDE.

 

I have tried typing that, immediately after I typed stack.setTagCom the window disappears.

 

Does it have something to do with #merge(NbtTagCompound)

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What do you want with this merge method? Just... where did you get it from? Leave it alone. Merge is merge. Set is set. :D

 

Is there anything you do not understand as of now? What is the problem?

 

The proper method as of 1.8 is NBT#setTag(String key, NBTBase)

NBTBase is base class of all nbt data. You can compare it to a simple java Object.class.

Now, this NBTBase extends to "generic" data - which are integers, Strings, double, whatever - which can be used with e.g:

NBT#setDouble(String key, double value).

It is either that or it extends to a NBTTagCompound - which translated to "java" is literally a MAP.

 

NBTTagCompound can contain any NBTBase or even next sub-maps - NBTTagCompounds.

 

To set map inside map you can use NBT#setTag(String key, NBTBase subMap).

 

Why did I made mistake in my last post? Because this:

NBT#getCompoundTag(String key)

I though the setter has similar name.

 

Anyway, what many people miss is the fact that e.g:

NBT$setString(String key, String value)

is actually a wrapper method to something like this:

NBT#setTag(String key, new NBTTagString(value));

 

Once you experiment with this you will see that it's VERY obvious in its design.

 

Post full code if you need assistance.

1.7.10 is no longer supported by forge, you are on your own.

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I always assumed setTag was private.

 

That would be dumb and would violate the whole point of a public getter/setter wrapped around a private object.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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