org.getspout.spout.packet.PacketCustomMultiBlockOverride.java Source code

Introduction

Here is the source code for org.getspout.spout.packet.PacketCustomMultiBlockOverride.java

Source

/*
 * This file is part of Spoutcraft (http://wiki.getspout.org/).
 * 
 * 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.getspout.spout.packet;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.zip.DataFormatException;
import java.util.zip.Deflater;
import java.util.zip.Inflater;

import org.apache.commons.io.output.ByteArrayOutputStream;
import org.spoutcraft.spoutcraftapi.Spoutcraft;
import org.spoutcraft.spoutcraftapi.block.Chunk;

public class PacketCustomMultiBlockOverride implements CompressablePacket {
    private int chunkX;
    private int chunkZ;
    private boolean compressed = true;
    private byte[] data;

    public PacketCustomMultiBlockOverride() {

    }

    public int getNumBytes() {
        return 12 + (data != null ? data.length : 0);
    }

    public void readData(DataInputStream input) throws IOException {
        chunkX = input.readInt();
        chunkZ = input.readInt();
        int size = input.readInt();
        data = new byte[size];
        input.readFully(data);
    }

    public void writeData(DataOutputStream output) throws IOException {
        output.writeInt(chunkX);
        output.writeInt(chunkZ);
        output.writeInt(data.length);
        output.write(data);
    }

    public void run(int playerId) {
        ByteBuffer result = ByteBuffer.allocate(data.length).put(data);
        Chunk chunk = Spoutcraft.getWorld().getChunkAt(chunkX, chunkZ);
        for (int i = 0; i < data.length / 6; i++) {
            int index = i * 6;
            int x = result.get(index) + chunkX * 16;
            int y = result.getShort(index + 1);
            int z = result.get(index + 3) + chunkZ * 16;
            short id = result.getShort(index + 4);
            chunk.setCustomBlockId(x, y, z, id);
        }
    }

    public void failure(int playerId) {

    }

    public PacketType getPacketType() {
        return PacketType.PacketCustomMultiBlockOverride;
    }

    public int getVersion() {
        return 3;
    }

    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) {

            }
            compressed = false;
            data = bos.toByteArray();
        }
    }

    public boolean isCompressed() {
        return compressed;
    }

}