@SideOnly(Side.CLIENT)
    public void randomDisplayTick(IBlockState stateIn, World worldIn, BlockPos pos, Random rand)
    {
    	ArrayList<BlockPos> positions = getSideToExpand(worldIn, pos);

    	for (BlockPos position : positions)
    	{
    		worldIn.setBlockState(position, this.getDefaultState());
		}
    }

private ArrayList<BlockPos> getSideToExpand(World worldIn, BlockPos pos)
    {
    	ArrayList<BlockPos> positions = new ArrayList<BlockPos>();

    	if (worldIn.canBlockBePlaced(this, pos.east(), true, null, null, null) && worldIn.getBlockState(pos.east()) != this.blockState.getBaseState())
    	{
    		positions.add(pos.east());
    	}

    	if (worldIn.canBlockBePlaced(this, pos.west(), true, null, null, null) && worldIn.getBlockState(pos.west()) != this.blockState.getBaseState())
    	{
    		positions.add(pos.west());
    	}

    	if (worldIn.canBlockBePlaced(this, pos.north(), true, null, null, null) && worldIn.getBlockState(pos.north()) != this.blockState.getBaseState())
    	{
    		positions.add(pos.north());
    	}

    	if (worldIn.canBlockBePlaced(this, pos.south(), true, null, null, null) && worldIn.getBlockState(pos.south()) != this.blockState.getBaseState())
    	{
    		positions.add(pos.south());
    	}

    	return positions;
    }