/*
* This file is part of Spoutcraft.
*
* Copyright (c) 2011 SpoutcraftDev <http://spoutcraft.org/>
* Spoutcraft is licensed under the GNU Lesser General Public License.
*
* Spoutcraft is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Spoutcraft 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.spoutcraft.client.packet;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.UUID;
import java.util.zip.DataFormatException;
import java.util.zip.Deflater;
import java.util.zip.Inflater;
import org.apache.commons.io.output.ByteArrayOutputStream;
import net.minecraft.src.Minecraft;
import net.minecraft.src.WorldClient;
import org.spoutcraft.api.io.SpoutInputStream;
import org.spoutcraft.api.io.SpoutOutputStream;
import org.spoutcraft.client.SpoutClient;
import org.spoutcraft.client.entity.CraftEntity;
public class PacketEntityInformation implements CompressablePacket {
private boolean compressed = false;
private byte[] data = null;
public PacketEntityInformation() {
}
public PacketEntityInformation(List<CraftEntity> entities) {
ByteBuffer tempbuffer = ByteBuffer.allocate(entities.size() * 4);
for (CraftEntity e : entities) {
tempbuffer.putInt(e.getEntityId());
}
data = tempbuffer.array();
}
public void readData(SpoutInputStream input) throws IOException {
int size = input.readInt();
if (size > 0) {
data = new byte[size];
input.read(data);
}
compressed = input.readBoolean();
}
public void writeData(SpoutOutputStream output) throws IOException {
if (data != null) {
output.writeInt(data.length);
output.write(data);
} else {
output.writeInt(0);
}
output.writeBoolean(compressed);
}
public void run(int playerId) {
if (Minecraft.getMinecraft().theWorld instanceof WorldClient) {
ByteBuffer rawData = ByteBuffer.allocate(data.length);
rawData.put(data);
for (int i = 0; i < data.length / 20; i++) {
int index = i * 20;
long lsb = rawData.getLong(index);
long msb = rawData.getLong(index + 8);
int id = rawData.getInt(index + 16);
net.minecraft.src.Entity e = SpoutClient.getInstance().getEntityFromId(id);
if (e != null) {
e.uniqueId = new UUID(msb, lsb);
}
}
}
}
public void failure(int playerId) {
}
public PacketType getPacketType() {
return PacketType.PacketEntityInformation;
}
public int getVersion() {
return 0;
}
public void compress() {
if (!compressed) {
if (data != null) {
Deflater deflater = new Deflater();
deflater.setInput(data);
deflater.setLevel(Deflater.BEST_COMPRESSION);
deflater.finish();
ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length);
byte[] buffer = new byte[1024];
while (!deflater.finished())
{
int bytesCompressed = deflater.deflate(buffer);
bos.write(buffer, 0, bytesCompressed);
}
try {
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
data = bos.toByteArray();
}
compressed = true;
}
}
public void decompress() {
if (compressed) {
Inflater decompressor = new Inflater();
decompressor.setInput(data);
ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length);
byte[] buf = new byte[1024];
while (!decompressor.finished()) {
try {
int count = decompressor.inflate(buf);
bos.write(buf, 0, count);
} catch (DataFormatException e) {
}
}
try {
bos.close();
} catch (IOException e) {
}
data = bos.toByteArray();
}
}
public boolean isCompressed() {
return compressed;
}
}