Decoblocks Modding Issues

@Override
    public void onBlockPlacedBy(World world, int x, int y, int z, EntityLivingBase entityLiving, ItemStack itemStack)
    {
        final int angle = MathHelper.floor_double(entityLiving.rotationYaw * 4.0F / 360.0F + 0.5D) & 3;
        int change = 0;

        switch (angle)
        {
        case 0:
            change = 3;
            break;
        case 1:
            change = 1;
            break;
        case 2:
            change = 2;
            break;
        case 3:
            change = 0;
            break;
        }

        world.setBlockMetadataWithNotify(x, y, z, change, 2);
    }