BlockItemInventoryPanel.java

package crazypants.enderio.machine.invpanel;

import net.minecraft.block.Block;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;

public class BlockItemInventoryPanel extends ItemBlock {

  public BlockItemInventoryPanel(Block b) {
    super(b);
  }

  @Override
  public boolean placeBlockAt(ItemStack stack, EntityPlayer player, World world, int x, int y, int z, int side, float hitX, float hitY, float hitZ, int metadata) {
    if(!super.placeBlockAt(stack, player, world, x, y, z, side, hitX, hitY, hitZ, metadata)) {
      return false;
    }
    TileEntity te = world.getTileEntity(x, y, z);
    if(te instanceof TileInventoryPanel) {
      TileInventoryPanel teInvPanel = (TileInventoryPanel) te;
      teInvPanel.setFacing((short) side);
      teInvPanel.readFromItemStack(stack);
      if(!world.isRemote) {
        world.markBlockForUpdate(x, y, z);
      }
    }
    return true;
  }

}