Storing Energy in ItemStack

[Terrails]

I have an battery which holds Forge Energy and I generate it with solar panels, now I want to save the energy of the battery when its broken, so when I place it again it has the value before I broke it. How should I do this?

Edited February 10, 2017 by Terrails

[Terrails]

BlockBasicBattery

https://gist.github.com/Terrails/cf9282a47e5949162c62ac347f9507bf

 

BaseEnergyContainer

https://gist.github.com/Terrails/f3be7032f7a3c097d0fadde5abd0d7b0

 

TileEntityBasicBattery

https://gist.github.com/Terrails/344147dc45a24a35217dab20f0d2312b

[larsgerrits]

Override Block#getDrops to return a List<ItemStack> containing an ItemStack with the NBT properties of the TileEntity. Be sure to delay the breaking of the Block by overriding Block#removedByPlayer to return true if willHarvest is true, and else return the result of the super method. Look at BlockFlowerPot for an example.

 

Then in Block#onBlockPlacedBy set the NBT of the TIleEntity to the NBT of the ItemStack.

Edited February 10, 2017 by larsgerrits

[Terrails]

For now I made the block save its stored power into NBT when I break it. But I'm not sure how to use the NBT in onBlockPlacedBy method.

I'm using Actually Addition in my workspace so I can see the NBT.

What I added to the Block class:

Spoiler

    @Override
    public ArrayList<ItemStack> getDrops(IBlockAccess world, BlockPos pos, IBlockState state, int fortune) {
        ArrayList<ItemStack> drop = new ArrayList<ItemStack>();

                Random rand = world instanceof World ? ((World) world).rand : RANDOM;
        Item item = this.getItemDropped(state, rand, fortune);
        ItemStack stack = null;
        if (item != null) {
            stack = new ItemStack(item, 1, this.damageDropped(state));
            drop.add(stack);
        }
        TileEntity te = world.getTileEntity(pos);
        if (te instanceof TileEntityBasicBattery && stack != null) {
            if (((TileEntityBasicBattery) te).containsEnergy()) {
                NBTTagCompound tag = new NBTTagCompound();
                ((TileEntityBasicBattery) te).writeToNBT(tag);
                stack.setTagCompound(tag);
            }
        }
        return drop;
        }

    @Override
    public boolean removedByPlayer(IBlockState state, World world, BlockPos pos, EntityPlayer player, boolean willHarvest)
    {
        if (willHarvest) return true; //If it will harvest, delay deletion of the block until after getDrops
        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){
        world.setBlockState(pos, state.withProperty(FACING, entity.getHorizontalFacing().getOpposite()), 2);
        if(stack.hasTagCompound()){
            TileEntity tile = world.getTileEntity(pos);
            if(tile instanceof TileEntityBasicBattery){
                TileEntityBasicBattery base = (TileEntityBasicBattery)tile;
            //    NBTTagCompound compound = stack.getTagCompound().getCompoundTag("stored");
                NBTTagCompound tag = new NBTTagCompound();
                stack.getTagCompound().getCompoundTag("stored");
            }
        }
    }

 

TileEntity

Spoiler

    int input = 2500;
    int output = 2500;
    int maxEnergy = 1000000;
    int storedEnergy;
    private Item battery;

    public TileEntityBasicBattery() {
        setMaxEnergyStored(maxEnergy);
        setMaxInput(input);
        setMaxOutput(output);
        this.battery = battery;
        this.markDirty();
    }

    @Override
    public void readFromNBT(NBTTagCompound compound) {
        storedEnergy = compound.getInteger("stored");
        super.readFromNBT(compound);
    }

    @Override
    public NBTTagCompound writeToNBT(NBTTagCompound compound)
    {
        compound.setInteger("stored", storedEnergy);
        return super.writeToNBT(compound);
    }

 

 

[Terrails]

I can't figure it out... It just doesn't want to apply. I even tried looking at BlockBanner

Edited February 11, 2017 by Terrails

[Terrails]

I did this in my Block and I didn't change my Tile

https://gist.github.com/Terrails/304ce5c367c6f1a16bdd2a6954d81fab

[Terrails]

I used the getTileDataItemStack because of banners had it but I removed it now.

What should I do in onBlockPlacedBy than?

[Terrails]

Oh ok than where do I store the NBT back to the block when I put it on the ground?

[Terrails]

So I added an ItemBlock subclass into my Block class and it still doesn't want to work. The registry name's have to be the same I know that, but looks like the ItemBlock isn't getting called, I tested it with breakpoints

ItemBlock which I added, how am I supposed to call the ItemBlock?

 

this is the subclass.

Spoiler

    public class ItemBlockBasicBattery extends ItemBlock {

        public ItemBlockBasicBattery(Block block) {
            super(block);
            this.setHasSubtypes(true);
            this.setRegistryName("basic_battery");
        }


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

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


    }

 

 

[Terrails]

Here you go this is the folder where my Battery is: https://github.com/Terrails/MineDustry/tree/master/src/main/java/terrails/minedustry/common/blocks/machine/battery

 

I'm doing some random stuff so don't mind the mess!

Edited February 11, 2017 by Terrails

[Terrails]

That doesn't help with the placing, but thanks for informing me.

[Terrails]

I fixed 1, 3, 4 and 5 (I updated the github with it)

But my battery still won't save its content when I place it. I'll fix the 2 and 6 little bit later.

[Terrails]

I removed the comment from the super call and I tried 2 different way to fix the readFromNBT but nothing.