    001/*
    002 * Forge Mod Loader
    003 * Copyright (c) 2012-2013 cpw.
    004 * All rights reserved. This program and the accompanying materials
    005 * are made available under the terms of the GNU Lesser Public License v2.1
    006 * which accompanies this distribution, and is available at
    007 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
    008 *
    009 * Contributors:
    010 *     cpw - implementation
    011 */
    012
    013package cpw.mods.fml.common.registry;
    014
    015import com.google.common.io.ByteArrayDataInput;
    016import com.google.common.io.ByteArrayDataOutput;
    017
    018/**
    019 * A interface for Entities that need extra information to be communicated
    020 * between the server and client when they are spawned.
    021 */
    022public interface IEntityAdditionalSpawnData
    023{
    024    /**
    025     * Called by the server when constructing the spawn packet.
    026     * Data should be added to the provided stream.
    027     *
    028     * @param data The packet data stream
    029     */
    030    public void writeSpawnData(ByteArrayDataOutput data);
    031
    032    /**
    033     * Called by the client when it receives a Entity spawn packet.
    034     * Data should be read out of the stream in the same way as it was written.
    035     *
    036     * @param data The packet data stream
    037     */
    038    public void readSpawnData(ByteArrayDataInput data);
    039}