protected override void Parse(ref BitStreamReader bsr)
{
PacketInfo = new CmdInfo[DemoInfo.MaxSplitscreenPlayers];
for (int i = 0; i < PacketInfo.Length; i++)
{
PacketInfo[i] = new CmdInfo(DemoRef);
PacketInfo[i].ParseStream(ref bsr);
}
InSequence = bsr.ReadUInt();
OutSequence = bsr.ReadUInt();
MessageStream = new MessageStream(DemoRef);
MessageStream.ParseStream(ref bsr);
// After we're doing with the packet, we can process all the messages.
// Most things should be processed during parsing, but any additional checks should be done here.
var netTickMessages = MessageStream.Where(tuple => tuple.messageType == MessageType.NetTick).ToList();
if (netTickMessages.Count > 1)
{
DemoRef.LogError("there's more than 2 net tick messages in this packet");
}
NetTick?tickInfo = (NetTick?)netTickMessages.FirstOrDefault().message;
if (tickInfo != null)
{
if (DemoRef.EntitySnapshot != null)
{
DemoRef.EntitySnapshot.EngineTick = tickInfo.EngineTick;
}
}
// todo fill prop handles with data here
TimingAdjustment.AdjustFromPacket(this);
}
protected override void Parse(ref BitStreamReader bsr)
{
ClassCount = bsr.ReadUShort();
CreateOnClient = bsr.ReadBool();
if (!CreateOnClient)
{
// if this ever gets used then it should update the mutable tables
string s = $"I haven't implemented {GetType().Name} to update the C_string tables.";
DemoRef.LogError(s);
Debug.WriteLine(s);
ServerClasses = new ServerClass[ClassCount];
for (int i = 0; i < ServerClasses.Length; i++)
{
ServerClasses[i] = new ServerClass(DemoRef, this);
ServerClasses[i].ParseStream(ref bsr);
// this is an assumption I make in the structure of all the entity stuff, very critical
if (i != ServerClasses[i].DataTableId)
{
throw new ConstraintException("server class ID does not match it's index in the list");
}
}
}
DemoRef.EntBaseLines ??= new EntityBaseLines(DemoRef, ClassCount);
}
// I don't think I've seen this in demos yet, I'll just log it for now and deal with it later
protected override void Parse(ref BitStreamReader bsr)
{
NeedsDecoder = bsr.ReadBool();
ushort len = bsr.ReadUShort();
_props = bsr.Split(len);
DemoRef.LogError($"unprocessed {GetType().Name} message"); // todo se2007/engine/dt_send_eng.cpp line 800
}
protected override void Parse(ref BitStreamReader bsr)
{
StringTablesManager manager = DemoRef.StringTablesManager;
if (!manager.TableReadable.GetValueOrDefault(_tableName))
{
DemoRef.LogError($"{_tableName} table is marked as non-readable, can't update :/");
_exceptionWhileParsing = true;
bsr.SkipToEnd();
return;
}
if (manager.CreationLookup.Single(table => table.TableName == _tableName).Flags == StringTableFlags.Fake)
{
DemoRef.LogError($"{_tableName} table was created manually - not parsed in SvcServerInfo");
_exceptionWhileParsing = true;
bsr.SkipToEnd();
return;
}
try { // se2007/engine/networkstringtable.cpp line 595
MutableStringTable tableToUpdate = manager.Tables[_tableName];
int?decompressedIndex = null;
if (tableToUpdate.Flags.HasValue && (tableToUpdate.Flags & StringTableFlags.DataCompressed) != 0 && _canCompress)
{
// decompress the data - engine/baseclientstate.cpp (hl2_src) line 1364
int uncompressedSize = bsr.ReadSInt();
int compressedSize = bsr.ReadSInt();
byte[] data = Compression.Decompress(ref bsr, compressedSize - 8); // -8 to ignore header
decompressedIndex = DemoRef.DecompressedLookup.Count;
DemoRef.DecompressedLookup.Add(data); // so that we can access the reader for the entries later
if (data.Length != uncompressedSize)
{
throw new Exception("could not decompress data in string table update");
}
bsr = new BitStreamReader(data);
}
int entryIndex = -1;
var history = new C5.CircularQueue <string>(32);
for (int i = 0; i < _numUpdatedEntries; i++)
{
entryIndex++;
if (!bsr.ReadBool())
{
entryIndex = (int)bsr.ReadUInt(BitUtils.HighestBitIndex(tableToUpdate.MaxEntries));
}
string?entryName = null;
if (bsr.ReadBool())
{
if (bsr.ReadBool()) // the first part of the string may be the same as for other entries
{
int index = (int)bsr.ReadUInt(5);
int subStrLen = (int)bsr.ReadUInt(SubStringBits);
entryName = history[index][..subStrLen];
protected override void Parse(ref BitStreamReader bsr)
{
Count = bsr.ReadByte();
if (Count != 1)
{
DemoRef.LogError($"{GetType()} is borking, there should only be one string but count is {Count}");
}
KeyString = bsr.ReadNullTerminatedString();
}
/* Okay, this is pretty wacky. First I read a byte, and based off of that I try to determine the type of
* user message. If I don't have a lookup list for whatever game this is or the type seems bogus, I log an
* error. Otherwise, create the message instance, and if it's not empty, try to parse it. If parsing fails,
* log an error. Finally, if not all bits of the message are parsed, then it's likely that I did something
* wrong, (since it seems like the user messages use up all the bits in the message) so log an error.
*/
protected override void Parse(ref BitStreamReader bsr)
{
byte typeVal = bsr.ReadByte();
MessageType = UserMessage.ByteToUserMessageType(DemoInfo, typeVal);
uint messageLength = bsr.ReadUInt(DemoInfo.UserMessageLengthBits);
string?errorStr = null;
var uMessageReader = bsr.SplitAndSkip(messageLength);
switch (MessageType)
{
case UserMessageType.Unknown:
errorStr = $"There is no SvcUserMessage list for this game, type {typeVal} was found";
break;
case UserMessageType.Invalid:
errorStr = $"SvcUserMessage with value {typeVal} is invalid";
break;
default:
UserMessage = SvcUserMessageFactory.CreateUserMessage(DemoRef, MessageType) !;
if (UserMessage == null)
{
errorStr = $"Unimplemented SvcUserMessage: {MessageType}";
_unimplemented = true;
}
else
{
try { // empty messages might still have 1-2 bytes, might need to do something 'bout that
if (UserMessage.ParseStream(uMessageReader) != 0)
{
errorStr = $"{GetType().Name} - {MessageType} ({typeVal}) didn't parse all bits";
}
} catch (Exception e) {
errorStr = $"{GetType().Name} - {MessageType} ({typeVal}) " +
$"threw exception during parsing, message: {e.Message}";
}
}
break;
}
#region error logging
// if parsing fails, just convert to an unknown type - the byte array that it will print is still useful
if (errorStr != null)
{
int rem = uMessageReader.BitsRemaining;
DemoRef.LogError($"{errorStr}, ({rem} bit{(rem == 1 ? "" : "s")}) - " +
$"{uMessageReader.FromBeginning().ToHexString()}");
UserMessage = new UnknownUserMessage(DemoRef);
UserMessage.ParseStream(uMessageReader);
}
#endregion
}
protected override void Parse(ref BitStreamReader bsr)
{
DataType = (CustomDataType)bsr.ReadSInt();
uint size = bsr.ReadUInt();
DataMessage = CustomDataFactory.CreateCustomDataMessage(DemoRef, DataType);
try {
DataMessage.ParseStream(bsr.SplitAndSkip(size * 8));
} catch (Exception e) {
DemoRef.LogError($"error while parsing custom data of type: {DataType}... {e.Message}");
DataMessage = new UnknownCustomDataMessage(DemoRef);
}
}
protected override void Parse(ref BitStreamReader bsr)
{
int byteSize = (int)bsr.ReadUInt();
int indexBeforeData = bsr.CurrentBitIndex;
try {
Tables = new List <SendTable>();
while (bsr.ReadBool())
{
var table = new SendTable(DemoRef);
Tables.Add(table);
table.ParseStream(ref bsr);
}
ushort classCount = bsr.ReadUShort();
ServerClasses = new List <ServerClass>(classCount);
for (int i = 0; i < classCount; i++)
{
var @class = new ServerClass(DemoRef, null);
ServerClasses.Add(@class);
@class.ParseStream(ref bsr);
// I assume in many places that the ID of the table matches its index
if (i != ServerClasses[i].DataTableId)
{
throw new ConstraintException("server class ID does not match its index in the list");
}
}
// in case SvcServerInfo parsing fails
DemoRef.EntBaseLines ??= new EntityBaseLines(DemoRef, ServerClasses.Count);
// re-init the baselines if the count doesn't match (maybe I should just init them from here?)
if (DemoRef.EntBaseLines !.Baselines.Length != classCount)
{
DemoRef.EntBaseLines.ClearBaseLineState(classCount);
}
// create the prop list for each class
DemoRef.DataTableParser = new DataTableParser(DemoRef, this);
DemoRef.DataTableParser.FlattenClasses(true);
} catch (Exception e) {
DemoRef.LogError($"exception while parsing datatables\n\texception: {e.Message}");
Debug.WriteLine(e);
}
bsr.CurrentBitIndex = indexBeforeData + (byteSize << 3);
}
protected override void Parse(ref BitStreamReader bsr)
{
Reliable = bsr.ReadBool();
int soundCount = Reliable ? 1 : bsr.ReadByte();
int dataBitLen = (int)bsr.ReadUInt(Reliable ? 8 : 16);
BitStreamReader soundBsr = bsr.SplitAndSkip(dataBitLen);
SoundInfo sound = new SoundInfo(DemoRef);
SoundInfo delta = new SoundInfo(DemoRef);
delta.SetDefault();
Exception?e = null;
try {
Sounds = new SoundInfo[soundCount];
for (int i = 0; i < soundCount; i++)
{
sound.ParseDelta(ref soundBsr, delta);
delta = sound;
if (Reliable) // client is incrementing the reliable sequence numbers itself
{
DemoRef.ClientSoundSequence = ++DemoRef.ClientSoundSequence & SndSeqNumMask;
if (sound.SequenceNumber != 0)
{
throw new ArgumentException($"expected sequence number 0, got: {sound.SequenceNumber}");
}
sound.SequenceNumber = DemoRef.ClientSoundSequence;
}
Sounds[i] = new SoundInfo(sound);
}
} catch (Exception exp) {
e = exp;
}
if (e != null)
{
Sounds = null;
DemoRef.LogError($"exception while parsing {nameof(SoundInfo)}: {e.Message}");
}
else if (soundBsr.BitsRemaining != 0)
{
Sounds = null;
DemoRef.LogError($"exception while parsing {nameof(SoundInfo)}: {soundBsr.BitsRemaining} bits left to read");
}
}
protected override void Parse(ref BitStreamReader bsr)
{
var soundIndexBits = DemoInfo.IsLeft4Dead2() ? DemoInfo.Game >= SourceGame.L4D2_2091 ? 15 : 14 : 13;
SoundIndex = (int)bsr.ReadUInt(soundIndexBits);
var mgr = DemoRef.StringTablesManager;
if (mgr.TableReadable.GetValueOrDefault(TableNames.SoundPreCache))
{
if (SoundIndex >= mgr.Tables[TableNames.SoundPreCache].Entries.Count)
{
DemoRef.LogError($"{GetType().Name} - sound index out of range: {SoundIndex}");
}
else if (SoundIndex != 0)
{
SoundName = mgr.Tables[TableNames.SoundPreCache].Entries[SoundIndex].EntryName;
}
}
}
protected override void Parse(ref BitStreamReader bsr)
{
EntityIndex = bsr.ReadBool() ? bsr.ReadUInt(bsr.ReadBool() ? 5 : DemoInfo.MaxEdictBits) : _deltaTmp.EntityIndex;
#pragma warning disable 8629
if (DemoInfo.NewDemoProtocol)
{
Flags = (SoundFlags?)bsr.ReadUIntIfExists(DemoInfo.SoundFlagBitsEncode) ?? _deltaTmp.Flags;
if ((Flags & SoundFlags.IsScriptHandle) != 0)
{
ScriptHash = bsr.ReadUInt();
}
else
{
SoundNum = (int?)bsr.ReadUIntIfExists(DemoInfo.MaxSndIndexBits) ?? _deltaTmp.SoundNum;
}
}
else
{
SoundNum = (int?)bsr.ReadUIntIfExists(DemoInfo.MaxSndIndexBits) ?? _deltaTmp.SoundNum;
Flags = (SoundFlags?)bsr.ReadUIntIfExists(DemoInfo.SoundFlagBitsEncode) ?? _deltaTmp.Flags;
}
Chan = (Channel?)bsr.ReadUIntIfExists(3) ?? _deltaTmp.Chan;
#pragma warning restore 8629
#region get sound name
if (SoundNum.HasValue)
{
var mgr = DemoRef.StringTablesManager;
if (mgr.TableReadable.GetValueOrDefault(TableNames.SoundPreCache))
{
_soundTableReadable = true;
if (SoundNum >= mgr.Tables[TableNames.SoundPreCache].Entries.Count)
{
DemoRef.LogError($"{GetType().Name} - sound index out of range: {SoundNum}");
}
else if (SoundNum != 0)
{
SoundName = mgr.Tables[TableNames.SoundPreCache].Entries[SoundNum.Value].EntryName;
}
}
}
#endregion
IsAmbient = bsr.ReadBool();
IsSentence = bsr.ReadBool();
if (Flags != SoundFlags.Stop)
{
if (bsr.ReadBool())
{
SequenceNumber = _deltaTmp.SequenceNumber;
}
else if (bsr.ReadBool())
{
SequenceNumber = _deltaTmp.SequenceNumber + 1;
}
else
{
SequenceNumber = bsr.ReadUInt(SndSeqNumberBits);
}
Volume = bsr.ReadUIntIfExists(7) / 127.0f ?? _deltaTmp.Volume;
SoundLevel = bsr.ReadUIntIfExists(MaxSndLvlBits) ?? _deltaTmp.SoundLevel;
Pitch = bsr.ReadUIntIfExists(8) ?? _deltaTmp.Pitch;
if (!DemoInfo.NewDemoProtocol && DemoRef.Header.NetworkProtocol > 21)
{
SpecialDspCount = bsr.ReadByteIfExists() ?? _deltaTmp.SpecialDspCount;
}
if (DemoInfo.NewDemoProtocol)
{
RandomSeed = bsr.ReadSIntIfExists(6) ?? _deltaTmp.RandomSeed; // 6, 18, or 29
Delay = bsr.ReadFloatIfExists() ?? _deltaTmp.Delay;
}
else
{
if (bsr.ReadBool())
{
Delay = bsr.ReadSInt(MaxSndDelayMSecEncodeBits) / 1000.0f;
if (Delay < 0)
{
Delay *= 10.0f;
}
Delay -= SndDelayOffset;
}
else
{
Delay = _deltaTmp.Delay;
}
}
Origin = new Vector3 {
X = bsr.ReadSIntIfExists(PropDecodeConsts.CoordIntBits - 2) * 8 ?? _deltaTmp.Origin.X,
Y = bsr.ReadSIntIfExists(PropDecodeConsts.CoordIntBits - 2) * 8 ?? _deltaTmp.Origin.Y,
Z = bsr.ReadSIntIfExists(PropDecodeConsts.CoordIntBits - 2) * 8 ?? _deltaTmp.Origin.Z
};
SpeakerEntity = bsr.ReadSIntIfExists(DemoInfo.MaxEdictBits + 1) ?? _deltaTmp.SpeakerEntity;
}
else
{
ClearStopFields();
}
}