Package org.cloudburstmc.server.utils

Class VarInt

java.lang.Object

org.cloudburstmc.server.utils.VarInt

public final class VarInt
extends Object

Tool class for VarInt or VarLong operations.

Some code from http://wiki.vg/Protocol.

Author:

MagicDroidX, lmlstarqaq

Method Summary

Modifier and Type	Method	Description
static int	decodeZigZag32(long v)
static long	decodeZigZag64(long v)
static long	encodeZigZag32(int v)
static long	encodeZigZag64(long v)
static long	readUnsignedVarInt(io.netty.buffer.ByteBuf buffer)
static long	readUnsignedVarInt(InputStream buffer)
static long	readUnsignedVarLong(io.netty.buffer.ByteBuf buffer)
static long	readUnsignedVarLong(InputStream buffer)
static int	readVarInt(io.netty.buffer.ByteBuf buffer)
static int	readVarInt(InputStream buffer)
static long	readVarLong(io.netty.buffer.ByteBuf buffer)
static long	readVarLong(InputStream buffer)
static void	writeUnsignedVarInt(io.netty.buffer.ByteBuf buffer, long value)
static void	writeUnsignedVarInt(OutputStream buffer, long value)
static void	writeUnsignedVarLong(io.netty.buffer.ByteBuf buffer, long value)
static void	writeUnsignedVarLong(OutputStream buffer, long value)
static void	writeVarInt(io.netty.buffer.ByteBuf buffer, int value)
static void	writeVarInt(OutputStream buffer, int value)
static void	writeVarLong(io.netty.buffer.ByteBuf buffer, long value)
static void	writeVarLong(OutputStream buffer, long value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

encodeZigZag32

public static long encodeZigZag32(int v)

Parameters:

v - Signed int

Returns:

Unsigned encoded int

decodeZigZag32

public static int decodeZigZag32(long v)

Parameters:

v - Unsigned encoded int

Returns:

Signed decoded int

encodeZigZag64

public static long encodeZigZag64(long v)

Parameters:

v - Signed long

Returns:

Unsigned encoded long

decodeZigZag64

public static long decodeZigZag64(long v)

Parameters:

v - Signed encoded long

Returns:

Unsigned decoded long

readVarInt

public static int readVarInt(io.netty.buffer.ByteBuf buffer)

Parameters:

buffer - BinaryStream

Returns:

Signed int

readVarInt

public static int readVarInt(InputStream buffer)
                      throws IOException

Parameters:

buffer - InputStream

Returns:

Signed int

Throws:

IOException

readUnsignedVarInt

public static long readUnsignedVarInt(io.netty.buffer.ByteBuf buffer)

Parameters:

buffer - BinaryStream

Returns:

Unsigned int

readUnsignedVarInt

public static long readUnsignedVarInt(InputStream buffer)
                               throws IOException

Parameters:

buffer - InputStream

Returns:

Unsigned int

Throws:

IOException

readVarLong

public static long readVarLong(io.netty.buffer.ByteBuf buffer)

Parameters:

buffer - BinaryStream

Returns:

Signed long

readVarLong

public static long readVarLong(InputStream buffer)
                        throws IOException

Parameters:

buffer - InputStream

Returns:

Signed long

Throws:

IOException

readUnsignedVarLong

public static long readUnsignedVarLong(io.netty.buffer.ByteBuf buffer)

Parameters:

buffer - BinaryStream

Returns:

Unsigned long

readUnsignedVarLong

public static long readUnsignedVarLong(InputStream buffer)
                                throws IOException

Parameters:

buffer - InputStream

Returns:

Unsigned long

Throws:

IOException

writeVarInt

public static void writeVarInt(io.netty.buffer.ByteBuf buffer,
 int value)

Parameters:

buffer - BinaryStream

value - Signed int

writeVarInt

public static void writeVarInt(OutputStream buffer,
 int value)
                        throws IOException

Parameters:

buffer - OutputStream

value - Signed int

Throws:

IOException

writeUnsignedVarInt

public static void writeUnsignedVarInt(io.netty.buffer.ByteBuf buffer,
 long value)

Parameters:

buffer - BinaryStream

value - Unsigned int

writeUnsignedVarInt

public static void writeUnsignedVarInt(OutputStream buffer,
 long value)
                                throws IOException

Parameters:

buffer - OutputStream

value - Unsigned int

Throws:

IOException

writeVarLong

public static void writeVarLong(io.netty.buffer.ByteBuf buffer,
 long value)

Parameters:

buffer - BinaryStream

value - Signed long

writeVarLong

public static void writeVarLong(OutputStream buffer,
 long value)
                         throws IOException

Parameters:

buffer - OutputStream

value - Signed long

Throws:

IOException

writeUnsignedVarLong

public static void writeUnsignedVarLong(io.netty.buffer.ByteBuf buffer,
 long value)

Parameters:

buffer - BinaryStream

value - Unsigned long

writeUnsignedVarLong

public static void writeUnsignedVarLong(OutputStream buffer,
 long value)
                                 throws IOException

Parameters:

buffer - OutputStream

value - Unsigned long

Throws:

IOException