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.

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.

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");
    				}
    			}
    		}
    	}
    }