private void WriteEntry(HalfLifeDelta delta, BitWriter bitWriter, Entry e)
{
Boolean signed = ((e.Flags & EntryFlags.Signed) != 0);
Object value = delta.FindEntryValue(e.Name);
if ((e.Flags & EntryFlags.Byte) != 0)
{
if (signed)
{
SByte writeValue = (SByte)value;
WriteInt(bitWriter, e, (Int32)writeValue);
}
else
{
Byte writeValue = (Byte)value;
WriteUnsignedInt(bitWriter, e, (UInt32)writeValue);
}
}
else if ((e.Flags & EntryFlags.Short) != 0)
{
if (signed)
{
Int16 writeValue = (Int16)value;
WriteInt(bitWriter, e, (Int32)writeValue);
}
else
{
UInt16 writeValue = (UInt16)value;
WriteUnsignedInt(bitWriter, e, (UInt32)writeValue);
}
}
else if ((e.Flags & EntryFlags.Integer) != 0)
{
if (signed)
{
WriteInt(bitWriter, e, (Int32)value);
}
else
{
WriteUnsignedInt(bitWriter, e, (UInt32)value);
}
}
else if ((e.Flags & EntryFlags.Angle) != 0)
{
bitWriter.WriteUnsignedBits((UInt32)((Single)value / (360.0f / (Single)(1 << (Int32)e.nBits))), (Int32)e.nBits);
}
else if ((e.Flags & EntryFlags.String) != 0)
{
bitWriter.WriteString((String)value);
}
else if ((e.Flags & EntryFlags.Float) != 0 || (e.Flags & EntryFlags.TimeWindow8) != 0 || (e.Flags & EntryFlags.TimeWindowBig) != 0)
{
Single writeValue = (Single)value;
Int32 bitsToWrite = (Int32)e.nBits;
if (signed)
{
bitWriter.WriteBoolean(writeValue < 0);
bitsToWrite--;
}
bitWriter.WriteUnsignedBits((UInt32)(Math.Abs(writeValue) * e.Divisor), bitsToWrite);
}
else
{
throw new ApplicationException(String.Format("Unknown delta entry type {0}.", e.Flags));
}
}
private void WriteUnsignedInt(BitWriter bitWriter, Entry e, UInt32 value)
{
UInt32 writeValue = value * (UInt32)e.Divisor;
bitWriter.WriteUnsignedBits((UInt32)Math.Abs(writeValue), (Int32)e.nBits);
}
private void MessageDeltaPacketEntities()
{
if (!demo.ConvertNetworkProtocol() || demo.IsBetaSteam())
{
parser.MessageDeltaPacketEntities();
return;
}
Int32 messageStartOffset = parser.BitBuffer.CurrentByte;
BitWriter bitWriter = new BitWriter();
// read message
bitWriter.WriteUInt16(parser.BitBuffer.ReadUInt16()); // nEntities/maxEntities
if (demo.NetworkProtocol <= 43)
{
parser.BitBuffer.Endian = BitBuffer.EndianType.Big;
}
bitWriter.WriteByte(parser.BitBuffer.ReadByte()); // delta sequence number
UInt32 entityNumber = 0;
while (true)
{
// check for footer
UInt16 footer = parser.BitBuffer.ReadUInt16();
if (footer == 0)
{
bitWriter.WriteUInt16(footer);
break;
}
parser.BitBuffer.SeekBits(-16);
// option bits
Boolean removeEntity = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(removeEntity);
Boolean absoluteEntityNumber = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(absoluteEntityNumber);
// entity number
if (absoluteEntityNumber)
{
entityNumber = parser.BitBuffer.ReadUnsignedBits(11);
bitWriter.WriteUnsignedBits(entityNumber, 11);
}
else
{
UInt32 deltaEntityNumber = parser.BitBuffer.ReadUnsignedBits(6);
bitWriter.WriteUnsignedBits(deltaEntityNumber, 6);
entityNumber += deltaEntityNumber;
}
if (!removeEntity)
{
// entity type
Boolean custom = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(custom);
if (demo.NetworkProtocol <= 43)
{
parser.BitBuffer.SeekBits(1); // unknown, always 0
}
String entityType = "entity_state_t";
if (entityNumber > 0 && entityNumber <= demo.MaxClients)
{
entityType = "entity_state_player_t";
}
else if (custom)
{
entityType = "custom_entity_state_t";
}
// delta compressed data
Byte[] bitmaskBytes;
HalfLifeDeltaStructure deltaDecoder = parser.GetDeltaStructure(entityType);
HalfLifeDelta deltaEntity = deltaDecoder.CreateDelta();
deltaDecoder.ReadDelta(parser.BitBuffer, deltaEntity, out bitmaskBytes);
if (demo.Game != null)
{
demo.Game.ConvertPacketEntititiesCallback(deltaEntity, entityType, demo.GameVersion);
}
deltaDecoder.WriteDelta(bitWriter, deltaEntity, bitmaskBytes);
}
}
parser.BitBuffer.SkipRemainingBits();
parser.BitBuffer.Endian = BitBuffer.EndianType.Little;
// insert new message
ReWriteMessage(messageStartOffset, bitWriter.Data);
}
private void MessageResourceList()
{
Int32 startByteIndex = parser.BitBuffer.CurrentByte;
// read message
if (demo.NetworkProtocol <= 43)
{
parser.BitBuffer.Endian = BitBuffer.EndianType.Big;
}
UInt32 nEntries = parser.BitBuffer.ReadUnsignedBits(12);
List <Resource> resourceList = new List <Resource>((Int32)nEntries);
for (Int32 i = 0; i < nEntries; i++)
{
Resource r = new Resource();
r.type = parser.BitBuffer.ReadUnsignedBits(4);
r.name = parser.BitBuffer.ReadString();
r.index = parser.BitBuffer.ReadUnsignedBits(12);
r.fileSize = parser.BitBuffer.ReadBits(24); // signed?
r.flags = parser.BitBuffer.ReadUnsignedBits(3);
if ((r.flags & 4) != 0) // md5 hash (RES_CUSTOM?)
{
r.md5Hash = parser.BitBuffer.ReadBytes(16);
}
r.hasReservedData = parser.BitBuffer.ReadBoolean();
if (r.hasReservedData)
{
r.reservedData = parser.BitBuffer.ReadBytes(32);
}
if (demo.Game == null || demo.Game.ConvertResourceListCallback(demo, r.type, r.index, ref r.name))
{
resourceList.Add(r);
}
}
// consistency list
// indices of resources to force consistency upon?
if (parser.BitBuffer.ReadBoolean())
{
while (parser.BitBuffer.ReadBoolean())
{
Int32 nBits = (parser.BitBuffer.ReadBoolean() ? 5 : 10);
parser.BitBuffer.SeekBits(nBits);
}
}
parser.BitBuffer.SkipRemainingBits();
parser.BitBuffer.Endian = BitBuffer.EndianType.Little;
// stop now if we're not converting network protocols
if (!demo.ConvertNetworkProtocol())
{
return;
}
// create new message
BitWriter bitWriter = new BitWriter();
bitWriter.WriteUnsignedBits((UInt32)resourceList.Count, 12);
foreach (Resource r in resourceList)
{
bitWriter.WriteUnsignedBits(r.type, 4);
bitWriter.WriteString(r.name);
bitWriter.WriteUnsignedBits(r.index, 12);
bitWriter.WriteBits(r.fileSize, 24);
bitWriter.WriteUnsignedBits(r.flags, 3);
if ((r.flags & 4) != 0) // md5 hash
{
bitWriter.WriteBytes(r.md5Hash);
}
bitWriter.WriteBoolean(r.hasReservedData);
if (r.hasReservedData)
{
bitWriter.WriteBytes(r.reservedData);
}
}
bitWriter.WriteBoolean(false); // consistency list
// remove old message
Int32 endByteIndex = parser.BitBuffer.CurrentByte;
parser.Seek(startByteIndex, SeekOrigin.Begin);
parser.BitBuffer.RemoveBytes(endByteIndex - startByteIndex);
// insert new message into bitbuffer
parser.BitBuffer.InsertBytes(bitWriter.Data);
}
private void MessagePacketEntities()
{
if (!demo.ConvertNetworkProtocol())
{
parser.MessagePacketEntities();
return;
}
Int32 messageStartOffset = parser.BitBuffer.CurrentByte;
BitWriter bitWriter = new BitWriter();
// read message into new message
bitWriter.WriteUInt16(parser.BitBuffer.ReadUInt16()); // nEntities/maxEntities
if (demo.NetworkProtocol <= 43)
{
parser.BitBuffer.Endian = BitBuffer.EndianType.Big;
}
UInt32 entityNumber = 0;
while (true)
{
UInt16 footer = parser.BitBuffer.ReadUInt16();
if (footer == 0)
{
bitWriter.WriteUInt16(footer);
break;
}
else
{
parser.BitBuffer.SeekBits(-16);
}
if (!parser.BitBuffer.ReadBoolean()) // entity number isn't last entity number + 1, need to read it in
{
bitWriter.WriteBoolean(false);
// is the following entity number absolute, or relative from the last one?
if (parser.BitBuffer.ReadBoolean())
{
bitWriter.WriteBoolean(true);
entityNumber = parser.BitBuffer.ReadUnsignedBits(11);
bitWriter.WriteUnsignedBits(entityNumber, 11);
}
else
{
bitWriter.WriteBoolean(false);
UInt32 entityNumberDelta = parser.BitBuffer.ReadUnsignedBits(6);
bitWriter.WriteUnsignedBits(entityNumberDelta, 6);
entityNumber += entityNumberDelta;
}
}
else
{
bitWriter.WriteBoolean(true);
entityNumber++;
}
Boolean custom = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(custom);
Boolean baseline = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(baseline);
if (baseline)
{
bitWriter.WriteUnsignedBits(parser.BitBuffer.ReadUnsignedBits(6), 6); // baseline index
}
String entityType = "entity_state_t";
if (entityNumber > 0 && entityNumber <= demo.MaxClients)
{
entityType = "entity_state_player_t";
}
else if (custom)
{
entityType = "custom_entity_state_t";
}
HalfLifeDeltaStructure entityStateStructure = parser.GetDeltaStructure(entityType);
HalfLifeDelta delta = entityStateStructure.CreateDelta();
Byte[] bitmaskBytes;
entityStateStructure.ReadDelta(parser.BitBuffer, delta, out bitmaskBytes);
if (demo.Game != null)
{
demo.Game.ConvertPacketEntititiesCallback(delta, entityType, demo.GameVersion);
}
entityStateStructure.WriteDelta(bitWriter, delta, bitmaskBytes);
}
parser.BitBuffer.SkipRemainingBits();
parser.BitBuffer.Endian = BitBuffer.EndianType.Little;
// insert new message
ReWriteMessage(messageStartOffset, bitWriter.Data);
}
private void MessageNewUserMsg()
{
Int32 messageStartOffset = parser.BitBuffer.CurrentByte;
// read message
Byte id = parser.BitBuffer.ReadByte();
SByte length = parser.BitBuffer.ReadSByte();
String name = parser.BitBuffer.ReadString(16);
parser.AddUserMessage(id, length, name);
// FIXME: clean this up
if (!demo.ConvertNetworkProtocol() && name != "CDChallenge" && name != "CDSalt")
{
return;
}
if (demo.Game == null || demo.Game.UserMessages == null)
{
return;
}
Byte newId;
if (demo.Game.UserMessages.ContainsKey(name))
{
newId = demo.Game.UserMessages[name];
}
else
{
// cheating death
// TODO: probably should have a list of "bad" user messages to remove...
// TODO: should remove these messages even when not converting network protocols
if (name == "CDChallenge" || name == "CDSalt")
{
// remove message
Int32 messageFinishOffset = parser.BitBuffer.CurrentByte;
parser.BitBuffer.SeekBytes(messageStartOffset - 1, SeekOrigin.Begin);
parser.BitBuffer.RemoveBytes(messageFinishOffset - messageStartOffset + 1); // +1 for message id
return;
}
// user message doesn't exist in CS 1.6. shouldn't happen, but meh...
// TODO: use an id unused by compatibleUserMessageTable
//newId = (Byte?)id;
newId = firstFreeUserMessage;
if (firstFreeUserMessage == 255)
{
throw new NoFreeUserMessageException();
}
firstFreeUserMessage++;
demo.Game.UserMessages.Add(name, newId);
}
BitWriter bitWriter = new BitWriter();
bitWriter.WriteByte((Byte)newId);
bitWriter.WriteSByte(length);
bitWriter.WriteString(name, 16);
// insert new message
ReWriteMessage(messageStartOffset, bitWriter.Data);
}
private void MessageSpawnBaseline()
{
if (!demo.ConvertNetworkProtocol())
{
parser.MessageSpawnBaseline();
return;
}
Int32 messageStartOffset = parser.BitBuffer.CurrentByte;
BitWriter bitWriter = new BitWriter();
// read message into new message
if (demo.NetworkProtocol <= 43)
{
parser.BitBuffer.Endian = BitBuffer.EndianType.Big;
}
while (true)
{
UInt32 entityIndex = parser.BitBuffer.ReadUnsignedBits(11);
bitWriter.WriteUnsignedBits(entityIndex, 11);
if (entityIndex == (1 << 11) - 1) // all 1's
{
break;
}
UInt32 entityType = parser.BitBuffer.ReadUnsignedBits(2);
bitWriter.WriteUnsignedBits(entityType, 2);
String entityTypeString;
if ((entityType & 1) != 0)
{
if (entityIndex > 0 && entityIndex <= demo.MaxClients)
{
entityTypeString = "entity_state_player_t";
}
else
{
entityTypeString = "entity_state_t";
}
}
else
{
entityTypeString = "custom_entity_state_t";
}
HalfLifeDeltaStructure deltaStructure = parser.GetDeltaStructure(entityTypeString);
HalfLifeDelta delta = deltaStructure.CreateDelta();
Byte[] bitmaskBytes;
deltaStructure.ReadDelta(parser.BitBuffer, delta, out bitmaskBytes);
if (demo.Game != null)
{
demo.Game.ConvertPacketEntititiesCallback(delta, entityTypeString, demo.GameVersion);
}
deltaStructure.WriteDelta(bitWriter, delta, bitmaskBytes);
}
UInt32 footer = parser.BitBuffer.ReadUnsignedBits(5); // should be all 1's
bitWriter.WriteUnsignedBits(footer, 5);
if (footer != (1 << 5) - 1)
{
throw new ApplicationException("Bad svc_spawnbaseline footer.");
}
UInt32 nExtraData = parser.BitBuffer.ReadUnsignedBits(6);
bitWriter.WriteUnsignedBits(nExtraData, 6);
HalfLifeDeltaStructure entityStateStructure = parser.GetDeltaStructure("entity_state_t");
for (Int32 i = 0; i < nExtraData; i++)
{
HalfLifeDelta delta = entityStateStructure.CreateDelta();
Byte[] bitmaskBytes;
entityStateStructure.ReadDelta(parser.BitBuffer, delta, out bitmaskBytes);
entityStateStructure.WriteDelta(bitWriter, delta, bitmaskBytes);
}
parser.BitBuffer.Endian = BitBuffer.EndianType.Little;
parser.BitBuffer.SkipRemainingBits();
// insert new message
ReWriteMessage(messageStartOffset, bitWriter.Data);
}
private void MessageClientData()
{
if (demo.Perspective == Demo.Perspectives.Hltv)
{
return;
}
if (!demo.ConvertNetworkProtocol() || demo.IsBetaSteam())
{
parser.MessageClientData();
return;
}
// read message
Int32 messageStartOffset = parser.BitBuffer.CurrentByte;
if (demo.NetworkProtocol <= 43)
{
parser.BitBuffer.Endian = BitBuffer.EndianType.Big;
}
BitWriter bitWriter = new BitWriter();
HalfLifeDeltaStructure clientDataStructure = parser.GetDeltaStructure("clientdata_t");
HalfLifeDeltaStructure weaponDataStructure = parser.GetDeltaStructure("weapon_data_t");
Boolean deltaSequence = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(deltaSequence);
UInt32 deltaSequenceNumber = 0;
if (deltaSequence)
{
deltaSequenceNumber = parser.BitBuffer.ReadUnsignedBits(8);
bitWriter.WriteUnsignedBits(deltaSequenceNumber, 8);
}
HalfLifeDelta clientData = clientDataStructure.CreateDelta();
Byte[] clientDataBitmaskBytes;
clientDataStructure.ReadDelta(parser.BitBuffer, clientData, out clientDataBitmaskBytes);
clientDataStructure.WriteDelta(bitWriter, clientData, clientDataBitmaskBytes);
while (parser.BitBuffer.ReadBoolean())
{
bitWriter.WriteBoolean(true);
if (demo.NetworkProtocol < 47 && !demo.IsBetaSteam())
{
bitWriter.WriteUnsignedBits(parser.BitBuffer.ReadUnsignedBits(5), 6);
}
else
{
bitWriter.WriteUnsignedBits(parser.BitBuffer.ReadUnsignedBits(6), 6);
}
HalfLifeDelta weaponData = weaponDataStructure.CreateDelta();
Byte[] bitmaskBytes;
weaponDataStructure.ReadDelta(parser.BitBuffer, weaponData, out bitmaskBytes);
weaponDataStructure.WriteDelta(bitWriter, weaponData, bitmaskBytes);
}
bitWriter.WriteBoolean(false);
parser.BitBuffer.SkipRemainingBits();
parser.BitBuffer.Endian = BitBuffer.EndianType.Little;
// insert new message
ReWriteMessage(messageStartOffset, bitWriter.Data);
}
private void MessageEvent()
{
if (!demo.ConvertNetworkProtocol())
{
parser.MessageEvent();
return;
}
Int32 messageStartOffset = parser.BitBuffer.CurrentByte;
// read message
if (demo.NetworkProtocol <= 43)
{
parser.BitBuffer.Endian = BitBuffer.EndianType.Big;
}
BitWriter bitWriter = new BitWriter();
HalfLifeDeltaStructure eventStructure = parser.GetDeltaStructure("event_t");
UInt32 nEvents = parser.BitBuffer.ReadUnsignedBits(5);
bitWriter.WriteUnsignedBits(nEvents, 5);
for (Int32 i = 0; i < nEvents; i++)
{
UInt32 eventIndex = parser.BitBuffer.ReadUnsignedBits(10);
bitWriter.WriteUnsignedBits(eventIndex, 10); // event index
Boolean packetIndexBit = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(packetIndexBit);
if (packetIndexBit)
{
bitWriter.WriteUnsignedBits(parser.BitBuffer.ReadUnsignedBits(11), 11); // packet index
Boolean deltaBit = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(deltaBit);
if (deltaBit)
{
HalfLifeDelta delta = eventStructure.CreateDelta();
Byte[] bitmaskBytes;
eventStructure.ReadDelta(parser.BitBuffer, delta, out bitmaskBytes);
if (demo.Game != null)
{
demo.Game.ConvertEventCallback(demo, delta, eventIndex);
}
eventStructure.WriteDelta(bitWriter, delta, bitmaskBytes);
}
}
Boolean fireTimeBit = parser.BitBuffer.ReadBoolean();
bitWriter.WriteBoolean(fireTimeBit);
if (fireTimeBit)
{
bitWriter.WriteUnsignedBits(parser.BitBuffer.ReadUnsignedBits(16), 16); // fire time
}
}
parser.BitBuffer.SkipRemainingBits();
parser.BitBuffer.Endian = BitBuffer.EndianType.Little;
// insert new message
ReWriteMessage(messageStartOffset, bitWriter.Data);
}
