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package net.minecraft.server;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.zip.DataFormatException;
import java.util.zip.Deflater;
import java.util.zip.Inflater;
public class Packet51MapChunk extends Packet {
public int a;
public int b;
public int c;
public int d;
public byte[] buffer;
public boolean f;
public int size; // CraftBukkit - private -> public
private int h;
public byte[] rawData = new byte[0]; // CraftBukkit
public Packet51MapChunk() {
this.lowPriority = true;
}
// CraftBukkit start
public Packet51MapChunk(Chunk chunk, boolean flag, int i) {
this.lowPriority = true;
this.a = chunk.x;
this.b = chunk.z;
this.f = flag;
if (flag) {
i = '\uffff';
}
ChunkSection[] achunksection = chunk.h();
int j = 0;
int k = 0;
int l;
for (l = 0; l < achunksection.length; ++l) {
if (achunksection[l] != null && (!flag || !achunksection[l].a()) && (i & 1 << l) != 0) {
this.c |= 1 << l;
++j;
if (achunksection[l].h() != null) {
this.d |= 1 << l;
++k;
}
}
}
l = 2048 * (5 * j + k);
if (flag) {
l += 256;
}
if (rawData.length < l) {
rawData = new byte[l];
}
byte[] abyte = rawData;
int i1 = 0;
int j1;
for (j1 = 0; j1 < achunksection.length; ++j1) {
if (achunksection[j1] != null && (!flag || !achunksection[j1].a()) && (i & 1 << j1) != 0) {
byte[] abyte1 = achunksection[j1].g();
System.arraycopy(abyte1, 0, abyte, i1, abyte1.length);
i1 += abyte1.length;
}
}
NibbleArray nibblearray;
for (j1 = 0; j1 < achunksection.length; ++j1) {
if (achunksection[j1] != null && (!flag || !achunksection[j1].a()) && (i & 1 << j1) != 0) {
nibblearray = achunksection[j1].i();
System.arraycopy(nibblearray.a, 0, abyte, i1, nibblearray.a.length);
i1 += nibblearray.a.length;
}
}
for (j1 = 0; j1 < achunksection.length; ++j1) {
if (achunksection[j1] != null && (!flag || !achunksection[j1].a()) && (i & 1 << j1) != 0) {
nibblearray = achunksection[j1].j();
System.arraycopy(nibblearray.a, 0, abyte, i1, nibblearray.a.length);
i1 += nibblearray.a.length;
}
}
for (j1 = 0; j1 < achunksection.length; ++j1) {
if (achunksection[j1] != null && (!flag || !achunksection[j1].a()) && (i & 1 << j1) != 0) {
nibblearray = achunksection[j1].k();
System.arraycopy(nibblearray.a, 0, abyte, i1, nibblearray.a.length);
i1 += nibblearray.a.length;
}
}
if (k > 0) {
for (j1 = 0; j1 < achunksection.length; ++j1) {
if (achunksection[j1] != null && (!flag || !achunksection[j1].a()) && achunksection[j1].h() != null && (i & 1 << j1) != 0) {
nibblearray = achunksection[j1].h();
System.arraycopy(nibblearray.a, 0, abyte, i1, nibblearray.a.length);
i1 += nibblearray.a.length;
}
}
}
if (flag) {
byte[] abyte2 = chunk.l();
System.arraycopy(abyte2, 0, abyte, i1, abyte2.length);
i1 += abyte2.length;
}
/* CraftBukkit start - Moved compression into its own method.
byte[] abyte = data; // CraftBukkit - uses data from above constructor
Deflater deflater = new Deflater(-1);
try {
deflater.setInput(abyte, 0, i1);
deflater.finish();
this.buffer = new byte[i1];
this.size = deflater.deflate(this.buffer);
} finally {
deflater.end();
} */
this.rawData = abyte;
// CraftBukkit end
}
public void a(DataInputStream datainputstream) throws IOException { // CraftBukkit - throws IOEXception
this.a = datainputstream.readInt();
this.b = datainputstream.readInt();
this.f = datainputstream.readBoolean();
this.c = datainputstream.readShort();
this.d = datainputstream.readShort();
this.size = datainputstream.readInt();
this.h = datainputstream.readInt();
if (rawData.length < this.size) {
rawData = new byte[this.size];
}
datainputstream.readFully(rawData, 0, this.size);
int i = 0;
int j;
for (j = 0; j < 16; ++j) {
i += this.c >> j & 1;
}
j = 12288 * i;
if (this.f) {
j += 256;
}
this.buffer = new byte[j];
Inflater inflater = new Inflater();
inflater.setInput(rawData, 0, this.size);
try {
inflater.inflate(this.buffer);
} catch (DataFormatException dataformatexception) {
throw new IOException("Bad compressed data format");
} finally {
inflater.end();
}
}
public void a(DataOutputStream dataoutputstream) throws IOException { // CraftBukkit - throws IOException
dataoutputstream.writeInt(this.a);
dataoutputstream.writeInt(this.b);
dataoutputstream.writeBoolean(this.f);
dataoutputstream.writeShort((short) (this.c & '\uffff'));
dataoutputstream.writeShort((short) (this.d & '\uffff'));
dataoutputstream.writeInt(this.size);
dataoutputstream.writeInt(this.h);
dataoutputstream.write(this.buffer, 0, this.size);
}
public void handle(NetHandler nethandler) {
nethandler.a(this);
}
public int a() {
return 17 + this.size;
}
}
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