clientbasepacket.java

网络游戏天堂1的java源代码。。。。。

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package l1j.server.server.clientpackets;

import java.nio.ByteBuffer;
import java.util.logging.Level;
import java.util.logging.Logger;

import l1j.server.Config;
import l1j.server.server.ClientThread;
import l1j.server.server.model.L1World;

public abstract class ClientBasePacket {

	private static l1j.eric.EricLogger _log =  l1j.eric.EricLogger.getLogger2(ClientBasePacket.class
			.getName());

	private byte _decrypt[];

	private int _off;

	public ClientBasePacket(byte abyte0[]) {
		if(Config.OPCODE){
			L1World.getInstance().broadcastServerMessage("type=" + getType() + ", len=" + abyte0.length);
		}
		_log.finest("type=" + getType() + ", len=" + abyte0.length);
		_decrypt = abyte0;
		_off = 1;
	}

	public ClientBasePacket(ByteBuffer bytebuffer, ClientThread clientthread) {
	}

	public int readD() {
		int i = _decrypt[_off++] & 0xff;
		i |= _decrypt[_off++] << 8 & 0xff00;
		i |= _decrypt[_off++] << 16 & 0xff0000;
		i |= _decrypt[_off++] << 24 & 0xff000000;
		return i;
	}

	public int readC() {
		int i = _decrypt[_off++] & 0xff;
		return i;
	}

	public int readH() {
		int i = _decrypt[_off++] & 0xff;
		i |= _decrypt[_off++] << 8 & 0xff00;
		return i;
	}

	public int readCH() {
		int i = _decrypt[_off++] & 0xff;
		i |= _decrypt[_off++] << 8 & 0xff00;
		i |= _decrypt[_off++] << 16 & 0xff0000;
		return i;
	}

	public double readF() {
		long l = _decrypt[_off++] & 0xff;
		l |= _decrypt[_off++] << 8 & 0xff00;
		l |= _decrypt[_off++] << 16 & 0xff0000;
		l |= _decrypt[_off++] << 24 & 0xff000000;
		l |= (long) _decrypt[_off++] << 32 & 0xff00000000L;
		l |= (long) _decrypt[_off++] << 40 & 0xff0000000000L;
		l |= (long) _decrypt[_off++] << 48 & 0xff000000000000L;
		l |= (long) _decrypt[_off++] << 56 & 0xff00000000000000L;
		return Double.longBitsToDouble(l);
	}

	public String readS() {
		String s = null;
		try {
			s = new String(_decrypt, _off, _decrypt.length - _off, "big5");
			s = s.substring(0, s.indexOf('\0'));
			_off += s.getBytes("big5").length + 1;
		} catch (Exception e) {
			_log.log(Level.SEVERE, "OpCode=" + (_decrypt[0] & 0xff), e);
		}
		return s;
	}

	public byte[] readByte() {
		byte[] result = new byte[_decrypt.length - _off];
		try {
			System.arraycopy(_decrypt, _off, result, 0, _decrypt.length - _off);
			_off = _decrypt.length;
		} catch (Exception e) {
			_log.log(Level.SEVERE, "OpCode=" + (_decrypt[0] & 0xff), e);
		}
		return result;
	}

	/**
	 * クライアントパケットの種類を表す文字列を返す。("[C] C_DropItem" 等)
	 */
	public String getType() {
		return "[C] " + this.getClass().getSimpleName();
	}
}