BlockContainer.java

package net.minecraft.block;

import net.minecraft.block.material.Material;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;

public abstract class BlockContainer extends Block implements ITileEntityProvider
{
    protected BlockContainer(int par1, Material par2Material)
    {
        super(par1, par2Material);
        this.isBlockContainer = true;
    }

    /**
     * Called whenever the block is added into the world. Args: world, x, y, z
     */
    public void onBlockAdded(World par1World, int par2, int par3, int par4)
    {
        super.onBlockAdded(par1World, par2, par3, par4);
    }

    /**
     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
     */
    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    {
        super.breakBlock(par1World, par2, par3, par4, par5, par6);
        par1World.removeBlockTileEntity(par2, par3, par4);
    }

    /**
     * Called when the block receives a BlockEvent - see World.addBlockEvent. By default, passes it on to the tile
     * entity at this location. Args: world, x, y, z, blockID, EventID, event parameter
     */
    public boolean onBlockEventReceived(World par1World, int par2, int par3, int par4, int par5, int par6)
    {
        super.onBlockEventReceived(par1World, par2, par3, par4, par5, par6);
        TileEntity tileentity = par1World.getBlockTileEntity(par2, par3, par4);
        return tileentity != null ? tileentity.receiveClientEvent(par5, par6) : false;
    }
}