byte b0 = packetbuffer.readByte();
CommandBlockLogic commandblocklogic = null;
if (b0 == 0)
{
TileEntity tileentity = net.playerEntity.worldObj.getTileEntity(packetbuffer.readInt(), packetbuffer.readInt(), packetbuffer.readInt());
if (tileentity instanceof TileEntityCommandBlock)
{
commandblocklogic = ((TileEntityCommandBlock)tileentity).func_145993_a();
}