@Override
 public boolean onBlockActivated(
     World world,
     BlockPos pos,
     IBlockState state,
     EntityPlayer player,
     EnumFacing side,
     float hitX,
     float hitY,
     float hitZ) {
   ItemStack currentItem = player.getCurrentEquippedItem();
   TileEntity tileEntity = world.getTileEntity(pos);
   if (tileEntity instanceof TileEntityChoppingBoard) {
     TileEntityChoppingBoard tileEntityChoppingBoard = (TileEntityChoppingBoard) tileEntity;
     if (currentItem != null) {
       if (Recipes.getChoppingBoardRecipeFromInput(currentItem) != null
           && tileEntityChoppingBoard.getFood() == null) {
         if (tileEntityChoppingBoard.getFood() == null) {
           tileEntityChoppingBoard.setFood(new ItemStack(currentItem.getItem(), 1));
           world.markBlockForUpdate(pos);
           world.updateComparatorOutputLevel(pos, this);
           currentItem.stackSize--;
           return true;
         } else {
           if (!world.isRemote) {
             EntityItem entityFood =
                 new EntityItem(
                     world,
                     pos.getX() + 0.5,
                     pos.getY() + 0.4,
                     pos.getZ() + 0.5,
                     tileEntityChoppingBoard.getFood());
             world.spawnEntityInWorld(entityFood);
             tileEntityChoppingBoard.setFood(null);
             world.markBlockForUpdate(pos);
           }
           world.updateComparatorOutputLevel(pos, this);
           return true;
         }
       } else if (currentItem.getItem() == FurnitureItems.itemKnife
           && tileEntityChoppingBoard.getFood() != null) {
         if (tileEntityChoppingBoard.chopFood()) {
           currentItem.damageItem(1, player);
         }
         return true;
       }
     }
     if (tileEntityChoppingBoard.getFood() != null) {
       if (!world.isRemote) {
         EntityItem entityFood =
             new EntityItem(
                 world,
                 pos.getX() + 0.5,
                 pos.getY() + 0.4,
                 pos.getZ() + 0.5,
                 tileEntityChoppingBoard.getFood());
         world.spawnEntityInWorld(entityFood);
       }
       tileEntityChoppingBoard.setFood(null);
       world.markBlockForUpdate(pos);
       world.updateComparatorOutputLevel(pos, this);
     }
   }
   return true;
 }
 @Override
 public int getComparatorInputOverride(World world, BlockPos pos) {
   TileEntityChoppingBoard tecb = (TileEntityChoppingBoard) world.getTileEntity(pos);
   return tecb.getFood() != null ? 1 : 0;
 }