[1.11] Adding TE Information to tooltip

[Lambda]

Hey there!

 

So I'm in need of accessing a block's TE so I can get a couple of integers from it.. How would I do this? I have the itemblock already setup, however I do not know how to access that information from the TE.. I know I'll probably have to send a packet with the data in it, but I need to access it first.

[shadowfacts]

I'm not sure what you mean. Blocks in the world don't have tooltips (at least in vanilla) and item stacks in an inventory don't have tile entities.

[Lambda]

I have a custom ItemBlock

   public static class TheItemBlock extends ItemBlockBase {
        public TheItemBlock(Block block){
            super(block);
            this.setHasSubtypes(false);
            this.setMaxDamage(0);
        }


        @Override
        public String getUnlocalizedName(ItemStack stack){
            return this.getUnlocalizedName();
        }

        @Override
        public int getMetadata(int damage){
            return damage;
        }

        @Override
        public void addInformation(ItemStack stack, EntityPlayer player, List<String> list, boolean bool){
            
            list.add(StringUtil.localize(""));
        }
    }

which is a inner class to the block.

 

I want to put inside the ItemBlock tooltip some values from the TE.. The TE generates randomly, with randomly assigned values, when you pick it up, I want those values to display in the tooltip.

[shadowfacts]

As I said before items and item blocks in inventories don't have tile entities. You can use NBT data to store arbitrary data in a tile entity.

[Lambda]

Yes I know blocks and items blocks don't have tile entities, the block itself has one with 3 data numbers... So what I'm asking can I get information from the BLOCK TE and put it into the ITEMBLOCK an tooltip....

 

ex:

public class BlockVoidCrystal extends BlockContainerBase {

    public BlockVoidCrystal(String name) {
        super(Material.GLASS, name);
    }

    @Override
    public ItemBlockBase getItemBlock() {
        return new TheItemBlock(this);
    }

    @Nullable
    @Override
    public TileEntity createNewTileEntity(World worldIn, int meta) {
        return new TileEntityVoidCrystal(); 
    }

    @Override
    @SideOnly(Side.CLIENT)
    public boolean shouldSideBeRendered(IBlockState blockState, IBlockAccess worldIn, BlockPos pos, EnumFacing side) {
        return false;
    }

    @Override
    public boolean isBlockNormalCube(IBlockState blockState) {
        return false;
    }

    @Override
    public boolean isOpaqueCube(IBlockState blockState) {
        return false;
    }


    public static class TheItemBlock extends ItemBlockBase {
        public TheItemBlock(Block block){
            super(block);
            this.setHasSubtypes(false);
            this.setMaxDamage(0);
        }


        @Override
        public String getUnlocalizedName(ItemStack stack){
            return this.getUnlocalizedName();
        }

        @Override
        public int getMetadata(int damage){
            return damage;
        }

        @Override
        public void addInformation(ItemStack stack, EntityPlayer player, List<String> list, boolean bool){

            list.add(StringUtil.localize(""));
        }
    }
}

 

How would I access said arbitrary data?..

[shadowfacts]

So the ItemBlock has three different metadata values? In the addInformation method, just switch on stack.getMetadata() and add a different string to the list depending on the value.

[Lambda]

No no no.. The Block HAS a TileEntity, which stores 3 values.. I want to access those values and display them on the tooltip.

[shadowfacts]

Yes, exactly what diesieben07 said. When your block breaks, you need to add NBT to the dropped ItemStack based on the value stored in the tile entity. You can then access those values from the addInformation method.

[Lambda]

Okay, how do I get the integers from the TE to assign the NBT to the block?

[larsgerrits]

I assume you want to add the integers from the

TileEntity

to the NBT of an

ItemStack

? You want to override

getDrops

to return a

List<ItemStack>

with the NBT set to the values of the

TileEntity

, which you can access using the

IBlockAccess

and

BlockPos

provided.

[Choonster]

Note that by default, the

TileEntity

is removed from the world before

Block#getDrops

is called. You need to delay its removal like Forge's patch to

BlockFlowerPot

does.

[Lambda]

Here is what I have so far:

    @Override
    public ArrayList<ItemStack> getDrops(IBlockAccess world, BlockPos pos, IBlockState state, int fortune) {
        TileEntityVoidCrystal te = (TileEntityVoidCrystal)world.getTileEntity(pos);
        ArrayList<ItemStack> stack = new ArrayList<>();
        if(te != null) {
            NBTTagCompound compound = new NBTTagCompound();
            compound.setFloat("Decay", te.decay);
            compound.setFloat("Purity", te.purity);
            compound.setFloat("Charge", te.charge);

            stack.add(new ItemStack())
        }
    }

    @Override
    public boolean removedByPlayer(IBlockState state, World world, BlockPos pos, EntityPlayer player, boolean willHarvest) {
        if(willHarvest) return true;
        return super.removedByPlayer(state, world, pos, player, willHarvest);
    }

    @Override
    public void harvestBlock(World world, EntityPlayer player, BlockPos pos, IBlockState state, TileEntity te, ItemStack tool)
    {
        super.harvestBlock(world, player, pos, state, te, tool);
        world.setBlockToAir(pos);
    }

 

However, how do I write that NBT to the ItemStack?

[larsgerrits]

You want to make an

ItemStack

variable, then call

ItemStack#setTagCompound(NBTTagCompound)

on that variable. This is also the

ItemStack

you want to add to the

List<ItemStack>

.

[Lambda]

Thanks for your help!

 

If anybody is searching for this here is the completed code:

 

 

    @Override
    public ArrayList<ItemStack> getDrops(IBlockAccess world, BlockPos pos, IBlockState state, int fortune) {
        TileEntityVoidCrystal te = (TileEntityVoidCrystal)world.getTileEntity(pos);
        ArrayList<ItemStack> stacks = new ArrayList<>();
        if(te != null) {
            ItemStack itemToReturn = new ItemStack(InitBlocks.blockVoidCrystal);
            NBTTagCompound compound = new NBTTagCompound();
            compound.setFloat("Decay", te.decay);
            compound.setFloat("Purity", te.purity);
            compound.setFloat("Charge", te.charge);

            itemToReturn.setTagCompound(compound);

            stacks.add(itemToReturn);
        }

        return stacks;
    }

    @Override
    public boolean removedByPlayer(IBlockState state, World world, BlockPos pos, EntityPlayer player, boolean willHarvest) {
        if(willHarvest) return true;
        return super.removedByPlayer(state, world, pos, player, willHarvest);
    }

    @Override
    public void harvestBlock(World world, EntityPlayer player, BlockPos pos, IBlockState state, TileEntity te, ItemStack tool)
    {
        super.harvestBlock(world, player, pos, state, te, tool);
        world.setBlockToAir(pos);
    }

    @Override
    public void onBlockPlacedBy(World world, BlockPos pos, IBlockState state, EntityLivingBase entity, ItemStack stack) {
        super.onBlockPlacedBy(world, pos, state, entity, stack);
        if(!world.isRemote) {
            TileEntityVoidCrystal te = (TileEntityVoidCrystal) world.getTileEntity(pos);
            if (te != null) {
                NBTTagCompound compound = stack.getTagCompound();
                if (compound != null) {
                    float tempDecay = compound.getFloat("Decay");
                    float tempPurity = compound.getFloat("Purity");
                    float tempCharge = compound.getFloat("Charge");

                    te.decay = tempDecay;
                    te.purity = tempPurity;
                    te.charge = tempCharge;
                }
            }
        }

    }