[1.12.2] Saving NBT To Drops

[Lambda]

Hello,

 

So my TE has some data that I would like to be transferred across breaking/placing. I have some base code, however, it does not work.  When destroyed, no data tags are stored and nothing is saved.

 

Here is my current code:

Spoiler

    @Override
    public void getDrops(NonNullList<ItemStack> drops, IBlockAccess world, BlockPos pos, IBlockState state, int fortune) {
    	TileEntity tile = world.getTileEntity(pos);
    	ItemStack drop = new ItemStack(ModBlocks.ENCHANTMENT_FAB);
    	
    	if(!drop.hasTagCompound())
    		drop.setTagCompound(new NBTTagCompound());
    	
    	if(tile != null) //fix
    	{
    		if(tile instanceof TileEntityEnchantmentFab)
    		{
    			if(!((TileEntityEnchantmentFab) tile).getKnownEnchants().isEmpty())
    			{
					NBTTagList enchantList = new NBTTagList();
					for(Enchantment e : ((TileEntityEnchantmentFab) tile).getKnownEnchants()) {
						NBTTagString eString = new NBTTagString(e.getRegistryName().toString());
						enchantList.appendTag(eString);
					}
					drop.getTagCompound().setTag("enchantList", enchantList);
    			}
    			if(((TileEntityEnchantmentFab)tile).getEnchantEssence() > 0 ) 
    			{
    				drop.getTagCompound().setInteger("enchantmentEssence", ((TileEntityEnchantmentFab)tile).getEnchantEssence());
    			}
    		}
    	}
    	
    	drops.clear();
    	drops.add(drop);
    }
    
    @Override
    public void onBlockPlacedBy(World worldIn, BlockPos pos, IBlockState state, EntityLivingBase placer, ItemStack stack) {
    	TileEntity tile = worldIn.getTileEntity(pos);
    	if(!worldIn.isRemote) {
    		if(stack != null && tile != null)
    		{
    			if(stack.hasTagCompound() && tile instanceof TileEntityEnchantmentFab)
    			{
    				if(stack.getTagCompound().hasKey("enchantList"))
    				{
    					Set<Enchantment> eList = new HashSet<Enchantment>();
    					NBTTagList list = stack.getTagCompound().getTagList("enchantList", Constants.NBT.TAG_STRING);
    					for (int i = 0; i < list.tagCount(); i++) {
    						Enchantment theEnch = Enchantment.getEnchantmentByLocation(list.getStringTagAt(i));
    						eList.add(theEnch);
    					}
    					((TileEntityEnchantmentFab) tile).setEnchants(eList);
    				}
    				if(stack.getTagCompound().hasKey("enchantmentEssence"))
    				{
    					((TileEntityEnchantmentFab) tile).enchantmentEssence = stack.getTagCompound().getInteger("enchantmentEssence");
    				}
    			}
    		}
    	}
    }

 

 

 

Thank you.

[Draco18s]

Look at BlockShulkerBox.

It sets a tag on the item stack called "BlockEntityTag" which is automatically applied to the TE when the block is placed.

[Lambda]

Okay thanks, got it to work based on the shulkerbox. Point out any errors if you see any, but it works perfectly.

 

Spoiler

    @Override
    public void breakBlock(World worldIn, BlockPos pos, IBlockState state) {
    	TileEntity tile = worldIn.getTileEntity(pos);
    	if(tile != null)
    	{
    		if(tile instanceof TileEntityEnchantmentFab)
    		{
    			ItemStack item = new ItemStack(Item.getItemFromBlock(this));
    			NBTTagCompound compound = new NBTTagCompound();
    			
    			if(!((TileEntityEnchantmentFab) tile).getKnownEnchants().isEmpty())
    			{
					NBTTagList enchantList = new NBTTagList();
					for(Enchantment e : ((TileEntityEnchantmentFab) tile).getKnownEnchants()) {
						NBTTagString eString = new NBTTagString(e.getRegistryName().toString());
						enchantList.appendTag(eString);
					}
					compound.setTag("enchantList", enchantList);
    			}
    			if(((TileEntityEnchantmentFab)tile).getEnchantEssence() > 0 ) 
    			{
    				compound.setInteger("enchantmentEssence", ((TileEntityEnchantmentFab)tile).getEnchantEssence());
    			}
    			
    			item.setTagCompound(compound);
    			
    			this.spawnAsEntity(worldIn, pos, item);
    		}
    	}
    }
    
    @Override
    public Item getItemDropped(IBlockState state, Random rand, int fortune) {
    	return ItemStack.EMPTY.getItem();
    }
    
    @Override
    public void onBlockPlacedBy(World worldIn, BlockPos pos, IBlockState state, EntityLivingBase placer, ItemStack stack) {
    	TileEntity tile = worldIn.getTileEntity(pos);
    	if(!worldIn.isRemote) {
    		if(stack != null && tile != null)
    		{
    			if(stack.hasTagCompound() && tile instanceof TileEntityEnchantmentFab)
    			{
    				if(stack.getTagCompound().hasKey("enchantList"))
    				{
    					Set<Enchantment> eList = new HashSet<Enchantment>();
    					NBTTagList list = stack.getTagCompound().getTagList("enchantList", Constants.NBT.TAG_STRING);
    					for (int i = 0; i < list.tagCount(); i++) {
    						Enchantment theEnch = Enchantment.getEnchantmentByLocation(list.getStringTagAt(i));
    						eList.add(theEnch);
    					}
    					((TileEntityEnchantmentFab) tile).setEnchants(eList);
    				}
    				if(stack.getTagCompound().hasKey("enchantmentEssence"))
    				{
    					((TileEntityEnchantmentFab) tile).enchantmentEssence = stack.getTagCompound().getInteger("enchantmentEssence");
    				}
    			}
    		}
    	}
    }