Method getActualState

src/main/java/net/minecraft/block/BlockWall.java:173–176

Get the actual Block state of this Block at the given position. This applies properties not visible in the metadata, such as fence connections.

(IBlockState state, IBlockAccess worldIn, BlockPos pos)

     * metadata, such as fence connections.
     */
    public IBlockState getActualState(IBlockState state, IBlockAccess worldIn, BlockPos pos)
    {
        return state.withProperty(UP, !worldIn.isAirBlock(pos.up())).withProperty(NORTH, this.canConnectTo(worldIn, pos.north())).withProperty(EAST, this.canConnectTo(worldIn, pos.east())).withProperty(SOUTH, this.canConnectTo(worldIn, pos.south())).withProperty(WEST, this.canConnectTo(worldIn, pos.west()));
    }

    protected BlockState createBlockState()
    {