Help with NBT data :)

[DrEinsteinium]

Hey everyone.

 

I've been fiddling around with NBTTagCompounds lately and I can't quite decipher entirely how it works.

 

I am currently making a pretty simple item that stores the number of entities killed and adds to the number every time a monster is killed by the player Here is my code.

 

@ForgeSubscribe
public void soulBagListener(LivingDeathEvent event)
{
	if(event.source.getDamageType().equals("player") && event.entityLiving instanceof EntityMob)
	{
		EntityPlayer player = (EntityPlayer)event.source.getEntity();
		String entityLivingName = event.entityLiving.getEntityName();

		for(int i = 0; i < player.inventory.getSizeInventory(); i++)
		{
		  if(player.inventory.getStackInSlot(i) != null)
			if(player.inventory.getStackInSlot(i).getItem() instanceof ItemSoulBag)
			{
				ItemStack item = player.inventory.getStackInSlot(i);

				NBTTagCompound nbt = item.getTagCompound();		
				if(nbt == null)
					item.setTagCompound(new NBTTagCompound());
				if(!nbt.hasKey("tsouls"))
					nbt.setInteger("tsouls", 0);
				nbt.setInteger("tsouls", nbt.getInteger("tsouls") + 1);

				if(!nbt.hasKey("tsouls" + "-" + entityLivingName))
					nbt.setInteger("tsouls" + "-" + entityLivingName, 0);			
				nbt.setInteger("tsouls" + "-" + entityLivingName, nbt.getInteger("tsouls" + "-" + entityLivingName) + 1);

				return;
			}
		}
	}

}

 

Essentially, it loops through all of the inventory slots and finds the first SoulBagItem, then executing the code.

 

The first part of the code adds +1 to the "total soul count" named "tsouls" which is displayed rather easily on the ItemStack's tooltip. That part is easy.

 

The second part of the code adds a +1 to the "specific mob soul count" named "tsouls-" + entity name. This is what I am having trouble with, as I highly doubt this is how NBT tag compounds should work. I want to loop through the NBTTagCompound and add each entity specific counts to the tooltip as well, but I can't do that with my current system.

 

Can anyone explain to me what I am doing wrong or critique my system? And also help me understand the differences between

1. NBTTagCompound

2. NBTTagList

  - specifically "subtag"

3. NBTBase

 

And before I possibly get flamed, I have looked at a fairly decent tutorial on the MC forums, as well as the Forge wiki, but they don't explain everything.

 

Thanks in advance,

 

Dr. E.

[Draco18s]

Look at NBTTagCompoundList (IIRC the class name correctly)

Essentially it's a list of tags that you can add to a tag, then each one of the tags in the list can hold the mob name and the count.