public void ParseStringTable(IBitStream reader, string tableName, DemoParser parser)
{
int numStrings = (int)reader.ReadInt(16);
if (tableName == "modelprecache") {
parser.modelprecache.Clear ();
}
for (int i = 0; i < numStrings; i++)
{
string stringName = reader.ReadString();
if (stringName.Length >= 100)
throw new Exception("Roy said I should throw this.");
if (reader.ReadBit())
{
int userDataSize = (int)reader.ReadInt(16);
byte[] data = reader.ReadBytes(userDataSize);
if (tableName == "userinfo") {
PlayerInfo info = PlayerInfo.ParseFrom(new BinaryReader(new MemoryStream(data)));
parser.RawPlayers[int.Parse(stringName)] = info;
} else if (tableName == "instancebaseline") {
int classid = int.Parse(stringName); //wtf volvo?
parser.instanceBaseline[classid] = data;
} else if (tableName == "modelprecache") {
parser.modelprecache.Add (stringName);
}
}
}
// Client side stuff
if ( reader.ReadBit() )
{
int numstrings = (int)reader.ReadInt(16);
for ( int i = 0 ; i < numstrings; i++ )
{
reader.ReadString(); // stringname
if ( reader.ReadBit() )
{
int userDataSize = ( int )reader.ReadInt(16);
reader.ReadBytes( userDataSize );
}
else
{
}
}
}
}
public static Vector DecodeVector(SendTableProperty prop, IBitStream reader)
{
if (prop.Flags.HasFlagFast(SendPropertyFlags.Normal)) {
}
Vector v = new Vector();
v.X = DecodeFloat(prop, reader);
v.Y = DecodeFloat(prop, reader);
if (!prop.Flags.HasFlagFast(SendPropertyFlags.Normal)) {
v.Z = DecodeFloat(prop, reader);
} else {
bool isNegative = reader.ReadBit();
//v0v0v1v1 in original instead of margin.
float absolute = v.X * v.X + v.Y * v.Y;
if (absolute < 1.0f) {
v.Z = (float)Math.Sqrt(1 - absolute);
} else {
v.Z = 0f;
}
if (isNegative)
v.Z *= -1;
}
return v;
}
/// <summary>
/// Decodes the bytes in the packet-entites message.
/// </summary>
/// <param name="packetEntities">Packet entities.</param>
/// <param name="reader">Reader.</param>
/// <param name="parser">Parser.</param>
public static void Apply(PacketEntities packetEntities, IBitStream reader, DemoParser parser)
{
int currentEntity = -1;
for (int i = 0; i < packetEntities.UpdatedEntries; i++) {
//First read which entity is updated
currentEntity += 1 + (int)reader.ReadUBitInt();
//Find out whether we should create, destroy or update it.
// Leave flag
if (!reader.ReadBit()) {
// enter flag
if (reader.ReadBit()) {
//create it
var e = ReadEnterPVS(reader, currentEntity, parser);
parser.Entities[currentEntity] = e;
e.ApplyUpdate(reader);
} else {
// preserve / update
Entity e = parser.Entities[currentEntity];
e.ApplyUpdate(reader);
}
} else {
// leave / destroy
parser.Entities [currentEntity].Leave ();
parser.Entities[currentEntity] = null;
//dunno, but you gotta read this.
if (reader.ReadBit()) {
}
}
}
}
static float ReadBitNormal(IBitStream reader)
{
bool isNegative = reader.ReadBit();
uint fractVal = reader.ReadInt(NORMAL_FRACTIONAL_BITS);
float value = (float)fractVal * NORMAL_RESOLUTION;
if (isNegative)
value *= -1;
return value;
}
static float ReadBitCoordMP(IBitStream reader, bool isIntegral, bool isLowPrecision)
{
int intval = 0, fractval = 0;
float value = 0.0f;
bool isNegative = false;
bool inBounds = reader.ReadBit();
if (isIntegral) {
// Read the required integer and fraction flags
intval = reader.ReadBit() ? 1 : 0;
// If we got either parse them, otherwise it's a zero.
if (intval == 1) {
// Read the sign bit
isNegative = reader.ReadBit();
// If there's an integer, read it in
// Adjust the integers from [0..MAX_COORD_VALUE-1] to [1..MAX_COORD_VALUE]
if (inBounds) {
value = (float)( reader.ReadInt(11) + 1 );
} else {
value = (float)( reader.ReadInt(14) + 1 );
}
}
} else {
// Read the required integer and fraction flags
intval = reader.ReadBit() ? 1 : 0;
// Read the sign bit
isNegative = reader.ReadBit();
// If we got either parse them, otherwise it's a zero.
if (intval == 1) {
// If there's an integer, read it in
// Adjust the integers from [0..MAX_COORD_VALUE-1] to [1..MAX_COORD_VALUE]
if (inBounds) {
value = (float)( reader.ReadInt(11) + 1 );
} else {
value = (float)( reader.ReadInt(14) + 1 );
}
}
// If there's a fraction, read it in
fractval = (int)reader.ReadInt(isLowPrecision ? 3 : 5);
// Calculate the correct floating point value
value = intval + ( (float)fractval * ( isLowPrecision ? COORD_RESOLUTION_LOWPRECISION : COORD_RESOLUTION ) );
}
if (isNegative)
value = -value;
return value;
}
static float ReadBitCoord(IBitStream reader)
{
int intVal, fractVal;
float value = 0;
bool isNegative = false;
// Read the required integer and fraction flags
intVal = (int)reader.ReadInt(1);
fractVal = (int)reader.ReadInt(1);
// If we got either parse them, otherwise it's a zero.
if (( intVal | fractVal ) != 0) {
// Read the sign bit
isNegative = reader.ReadBit();
// If there's an integer, read it in
if (intVal == 1) {
// Adjust the integers from [0..MAX_COORD_VALUE-1] to [1..MAX_COORD_VALUE]
intVal = (int)reader.ReadInt(14) + 1; //14 --> Coord int bits
}
//If there's a fraction, read it in
if (fractVal == 1) {
fractVal = (int)reader.ReadInt(COORD_FRACTIONAL_BITS);
}
value = intVal + ( (float)fractVal * COORD_RESOLUTION );
}
if (isNegative)
value *= -1;
return value;
}
public static void Apply(CreateStringTable table, IBitStream reader, DemoParser parser)
{
if (table.Name == "modelprecache") {
while (parser.modelprecache.Count < table.MaxEntries) {
parser.modelprecache.Add(null);
}
}
if (reader.ReadBit())
throw new NotImplementedException("Encoded with dictionaries, unable to decode");
int nTemp = table.MaxEntries;
int nEntryBits = 0;
while ((nTemp >>= 1) != 0)
++nEntryBits;
List<string> history = new List<string>();
int lastEntry = -1;
for (int i = 0; i < table.NumEntries; i++) {
int entryIndex = lastEntry + 1;
// d in the entity-index
if (!reader.ReadBit()) {
entryIndex = (int)reader.ReadInt(nEntryBits);
}
lastEntry = entryIndex;
// Read the name of the string into entry.
string entry = "";
if (entryIndex < 0 || entryIndex >= table.MaxEntries) {
throw new InvalidDataException("bogus string index");
}
if (reader.ReadBit()) {
bool substringcheck = reader.ReadBit();
if (substringcheck) {
int index = (int)reader.ReadInt(5);
int bytestocopy = (int)reader.ReadInt(5);
entry = history[index].Substring(0, bytestocopy);
entry += reader.ReadString(1024);
} else {
entry = reader.ReadString(1024);
}
}
if (entry == null)
entry = "";
if (history.Count > 31)
history.RemoveAt(0);
history.Add(entry);
// Read in the user data.
byte[] userdata = new byte[0];
if (reader.ReadBit()) {
if (table.UserDataFixedSize) {
userdata = reader.ReadBits(table.UserDataSizeBits);
} else {
int bytesToRead = (int)reader.ReadInt(14);
userdata = reader.ReadBytes(bytesToRead);
}
}
if (userdata.Length == 0)
break;
if (table.Name == "userinfo") {
// Now we'll parse the players out of it.
BinaryReader playerReader = new BinaryReader(new MemoryStream(userdata));
PlayerInfo info = PlayerInfo.ParseFrom(playerReader);
parser.RawPlayers[entryIndex] = info;
} else if (table.Name == "instancebaseline") {
int classid = int.Parse(entry); //wtf volvo?
parser.instanceBaseline[classid] = userdata;
}
else if (table.Name == "modelprecache") {
parser.modelprecache[entryIndex] = entry;
}
}
parser.stringTables.Add(table);
}
public static void Apply(CreateStringTable table, IBitStream reader, DemoParser parser)
{
if (table.Name == "modelprecache")
{
while (parser.modelprecache.Count < table.MaxEntries)
{
parser.modelprecache.Add(null);
}
}
if (reader.ReadBit())
{
throw new NotImplementedException("Encoded with dictionaries, unable to decode");
}
var nTemp = table.MaxEntries;
var nEntryBits = 0;
while ((nTemp >>= 1) != 0)
{
++nEntryBits;
}
var history = new List <string>();
var lastEntry = -1;
for (var i = 0; i < table.NumEntries; i++)
{
var entryIndex = lastEntry + 1;
// d in the entity-index
if (!reader.ReadBit())
{
entryIndex = (int)reader.ReadInt(nEntryBits);
}
lastEntry = entryIndex;
// Read the name of the string into entry.
var entry = "";
if (entryIndex < 0 || entryIndex >= table.MaxEntries)
{
throw new InvalidDataException("bogus string index");
}
if (reader.ReadBit())
{
var substringcheck = reader.ReadBit();
if (substringcheck)
{
var index = (int)reader.ReadInt(5);
var bytestocopy = (int)reader.ReadInt(5);
entry = history[index].Substring(0, bytestocopy);
entry += reader.ReadString(1024);
}
else
{
entry = reader.ReadString(1024);
}
}
if (entry == null)
{
entry = "";
}
if (history.Count > 31)
{
history.RemoveAt(0);
}
history.Add(entry);
// Read in the user data.
var userdata = new byte[0];
if (reader.ReadBit())
{
if (table.UserDataFixedSize)
{
userdata = reader.ReadBits(table.UserDataSizeBits);
}
else
{
var bytesToRead = (int)reader.ReadInt(14);
userdata = reader.ReadBytes(bytesToRead);
}
}
if (userdata.Length == 0)
{
break;
}
if (table.Name == "userinfo")
{
// Now we'll parse the players out of it.
var playerReader = new BinaryReader(new MemoryStream(userdata));
var info = PlayerInfo.ParseFrom(playerReader);
parser.RawPlayers[entryIndex] = info;
}
else if (table.Name == "instancebaseline")
{
var classid = int.Parse(entry); //wtf volvo?
parser.instanceBaseline[classid] = userdata;
}
else if (table.Name == "modelprecache")
{
parser.modelprecache[entryIndex] = entry;
}
}
parser.stringTables.Add(table);
}
/// <summary>
/// Decodes a coarse format TIS-B airborne position message.
/// </summary>
/// <param name="message"></param>
private void DecodeCoarseTisbAirbornePosition(AdsbMessage message)
{
message.MessageFormat = MessageFormat.CoarseTisbAirbornePosition;
var subMessage = message.CoarseTisbAirbornePosition = new CoarseTisbAirbornePosition();
message.TisbIcaoModeAFlag = _BitStream.ReadByte(1);
subMessage.SurveillanceStatus = (SurveillanceStatus)_BitStream.ReadByte(2);
subMessage.ServiceVolumeID = _BitStream.ReadByte(4);
var rawAltitude = _BitStream.ReadUInt16(12);
var acCode = ((rawAltitude & 0xfe0) >> 1) | (rawAltitude & 0x0f);
if ((rawAltitude & 0x10) != 0)
{
subMessage.BarometricAltitude = ModeSAltitudeConversion.CalculateBinaryAltitude(acCode);
}
else
{
subMessage.BarometricAltitude = ModeSAltitudeConversion.LookupGillhamAltitude(acCode);
}
var groundTrackValid = _BitStream.ReadBit();
var groundTrack = _BitStream.ReadByte(5);
var groundSpeed = _BitStream.ReadByte(6);
if (groundTrackValid)
{
subMessage.GroundTrack = (double)groundTrack * 11.25;
}
subMessage.GroundSpeed = (double)groundSpeed * 16.0;
subMessage.CompactPosition = ExtractCprCoordinate(message, 12, ignoreMessageType: true);
}
public void ParseStringTable(IBitStream reader, string tableName, DemoParser parser)
{
int numStrings = (int)reader.ReadInt(16);
if (tableName == "modelprecache")
{
parser.modelprecache.Clear();
}
for (int i = 0; i < numStrings; i++)
{
string stringName = reader.ReadString();
if (stringName.Length >= 100)
{
throw new Exception("Roy said I should throw this.");
}
if (reader.ReadBit())
{
int userDataSize = (int)reader.ReadInt(16);
byte[] data = reader.ReadBytes(userDataSize);
if (tableName == "userinfo")
{
PlayerInfo info = PlayerInfo.ParseFrom(new BinaryReader(new MemoryStream(data)));
parser.RawPlayers[int.Parse(stringName)] = info;
}
else if (tableName == "instancebaseline")
{
int classid = int.Parse(stringName); //wtf volvo?
parser.instanceBaseline[classid] = data;
}
else if (tableName == "modelprecache")
{
parser.modelprecache.Add(stringName);
}
}
}
// Client side stuff
if (reader.ReadBit())
{
int numstrings = (int)reader.ReadInt(16);
for (int i = 0; i < numstrings; i++)
{
reader.ReadString(); // stringname
if (reader.ReadBit())
{
int userDataSize = ( int )reader.ReadInt(16);
reader.ReadBytes(userDataSize);
}
else
{
}
}
}
}
public void ParseStringTableMessage(CSVCMsg_CreateStringTable table, DemoParser parser)
{
using (IBitStream reader = BitStreamUtil.Create(table.string_data))
{
if (reader.ReadBit())
{
throw new NotImplementedException("Encoded with dictionaries, unable to decode");
}
int nTemp = table.max_entries;
int nEntryBits = 0;
while ((nTemp >>= 1) != 0)
{
++nEntryBits;
}
List <string> history = new List <string>();
int lastEntry = -1;
for (int i = 0; i < table.num_entries; i++)
{
int entryIndex = lastEntry + 1;
// read in the entity-index
if (!reader.ReadBit())
{
entryIndex = (int)reader.ReadInt(nEntryBits);
}
lastEntry = entryIndex;
// Read the name of the string into entry.
string entry = "";
if (entryIndex < 0 || entryIndex >= table.max_entries)
{
throw new InvalidDataException("bogus string index");
}
if (reader.ReadBit())
{
bool substringcheck = reader.ReadBit();
if (substringcheck)
{
int index = (int)reader.ReadInt(5);
int bytestocopy = (int)reader.ReadInt(5);
entry = history[index].Substring(0, bytestocopy);
entry += reader.ReadString(1024);
}
else
{
entry = reader.ReadString(1024);
}
}
if (entry == null)
{
entry = "";
}
if (history.Count > 31)
{
history.RemoveAt(0);
}
// Read in the user data.
byte[] userdata = new byte[0];
if (reader.ReadBit())
{
if (table.user_data_fixed_size)
{
userdata = reader.ReadBits(table.user_data_size_bits);
}
else
{
int bytesToRead = (int)reader.ReadInt(14);
userdata = reader.ReadBytes(bytesToRead);
}
}
if (userdata.Length == 0)
{
break;
}
// Now we'll parse the players out of it.
BinaryReader playerReader = new BinaryReader(new MemoryStream(userdata));
PlayerInfo info = PlayerInfo.ParseFrom(playerReader);
UpdatePlayer(info, parser);
}
}
}
private static float ReadBitCoordMP(IBitStream reader, bool isIntegral, bool isLowPrecision)
{
int intval = 0, fractval = 0;
var value = 0.0f;
var isNegative = false;
var inBounds = reader.ReadBit();
if (isIntegral)
{
// Read the required integer and fraction flags
intval = reader.ReadBit() ? 1 : 0;
// If we got either parse them, otherwise it's a zero.
if (intval == 1)
{
// Read the sign bit
isNegative = reader.ReadBit();
// If there's an integer, read it in
// Adjust the integers from [0..MAX_COORD_VALUE-1] to [1..MAX_COORD_VALUE]
if (inBounds)
{
value = reader.ReadInt(11) + 1;
}
else
{
value = reader.ReadInt(14) + 1;
}
}
}
else
{
// Read the required integer and fraction flags
intval = reader.ReadBit() ? 1 : 0;
// Read the sign bit
isNegative = reader.ReadBit();
// If we got either parse them, otherwise it's a zero.
if (intval == 1)
{
// If there's an integer, read it in
// Adjust the integers from [0..MAX_COORD_VALUE-1] to [1..MAX_COORD_VALUE]
if (inBounds)
{
value = reader.ReadInt(11) + 1;
}
else
{
value = reader.ReadInt(14) + 1;
}
}
// If there's a fraction, read it in
fractval = (int)reader.ReadInt(isLowPrecision ? 3 : 5);
// Calculate the correct floating point value
value = intval + (fractval * (isLowPrecision ? COORD_RESOLUTION_LOWPRECISION : COORD_RESOLUTION));
}
if (isNegative)
{
value = -value;
}
return(value);
}