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public GetBits ( int startPosition, int count ) : List |
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| startPosition | int | |
| count | int | |
| return | List |
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public static Frame Deserialize(ref List<ActorState> existingActorStates, IDictionary<int, string> objectIdToName, IEnumerable<ClassNetCache> classNetCache, int filePosition, bool[] bits)
{
var f = new Frame();
f.Position = filePosition;
f.BitLength = bits.Length;
f.RawData = new byte[(int)Math.Ceiling(f.BitLength / 8.0)];
var ba = new BitArray(bits);
ba.CopyTo(f.RawData, 0);
f.Time = BitConverter.ToSingle(f.RawData, 0);
f.Delta = BitConverter.ToSingle(f.RawData, 4);
var br = new BitReader(bits);
br.ReadBitsAsBytes(64); // we already read the time and delta
f.ActorStates = new List<ActorState>();
try
{
ActorState lastActorState = null;
while ((lastActorState == null || lastActorState.Complete || lastActorState.ForcedComplete) && br.ReadBit())
{
lastActorState = ActorState.Deserialize(existingActorStates, f.ActorStates, objectIdToName, classNetCache, br);
var existingActor = existingActorStates.Where(x => x.Id == lastActorState.Id).SingleOrDefault();
if (lastActorState.State != "Deleted")
{
if (existingActor == null)
{
existingActorStates.Add(lastActorState);
}
}
else
{
existingActorStates = existingActorStates.Where(x => x.Id != lastActorState.Id).ToList();
}
if( !lastActorState.Complete
|| (!br.PeekBit() && ((br.Length - br.Position) > 1) ) ) // 0 bit, signalling end of frame, but too many bits left to be truly complete
{
lastActorState.Complete = false;
// Try to find the next ActorState
// Always deleted first, then new, then existing
// Within those states id always increases
// ^ Nope thats not true
// Will be stuck in New or Existing land, since Deleted states are easy.
// If last was New, next ActorState will look like 1XXXXXXXXXX1
// If last was Existing, next ActorState will look like 01XXXXXXXXXX1 (0 prefix from the end of last state (no more properties)
var startPosition = br.Position;
for(var p = br.Position; p < br.Length - 20; p++ ) // I think the smallest non-deleted actor state will be 20 bits (1 0000000000 10 1 0000 0 0)
{
br.Seek(p);
Int32 potentialId = -1;
if (br.ReadBit())
{
potentialId = br.ReadInt32FromBits(10);
if (br.ReadBit()) // 1 for New/Existing
{
var newActor = br.ReadBit();
if (newActor && lastActorState.State == "Existing")
{
// Nope, cant have a new actor after an existing actor
continue;
}
if (newActor
&& (lastActorState.State == "New")
&& (potentialId > lastActorState.Id) // id is increasing
&& (potentialId < lastActorState.Id + 100) // id isnt crazy
&& ((br.Length - br.Position) > 33) // have enough bits left for the typeid and unknown bit
)
{
// Heck, lets give it a shot.
lastActorState.ForcedComplete = true;
lastActorState.UnknownBits = br.GetBits(startPosition, p - startPosition);
br.Seek(p);
break;
}
if (!newActor
&& (lastActorState.State == "New")
//&& (potentialId <= lastActorState.Id) // Potentially first existing actor after a new actor. Id can be at most equal to last actor id
// I think... We could get lucky enough to have only a New actor that doesnt need extra data, and then Existing data for something else...
&& (existingActorStates.Where(x => x.Id == potentialId).Any()) // We have a match in our list
&& br.ReadBit() // Must have a 1 here for "new property
&& ((br.Length - br.Position) > 6) // have enough bits lefts for the smallest prop (4 bits for id, 1 for bool value, 1 bit for 'no more properties'
)
{
// Heck, lets give it a shot.
lastActorState.ForcedComplete = true;
lastActorState.UnknownBits = br.GetBits(startPosition, p - startPosition);
br.Seek(p);
break;
}
if (!newActor
&& (lastActorState.State == "Existing")
//&& (potentialId > lastActorState.Id) // Id is increasing
&& (existingActorStates.Where(x => x.Id == potentialId).Any()) // We have a match in our list
&& br.ReadBit() // Must have a 1 here for "new property
&& ((br.Length - br.Position) > 6) // have enough bits lefts for the smallest prop (4 bits for id, 1 for bool value, 1 bit for 'no more properties'
)
{
// Heck, lets give it a shot.
// This same code is in here 3 times, silly. Make it better.
lastActorState.ForcedComplete = true;
lastActorState.UnknownBits = br.GetBits(startPosition, p - startPosition);
br.Seek(p);
break;
}
}
}
}
if ( !lastActorState.Complete && !lastActorState.ForcedComplete )
{
// Didnt find anything. Reset position so unknown bits get recorded properly
br.Seek(startPosition);
}
}
//f.ActorStates.Add(lastActorState);
}
if (br.EndOfStream && (lastActorState == null || lastActorState.Complete))
{
f.Complete = true;
}
if ( lastActorState != null &&lastActorState.Failed )
{
f.Failed = true;
}
}
catch (Exception) { }
while (!br.EndOfStream)
{
f.UnknownBits.Add(br.ReadBit());
}
return f;
}
public static ActorState Deserialize(List<ActorState> existingActorStates, List<ActorState> frameActorStates, IDictionary<int, string> objectIndexToName, IEnumerable<ClassNetCache> classNetCache, BitReader br)
{
//var a = new ActorState();
var startPosition = br.Position;
var actorId = br.ReadInt32FromBits(10);
ActorState a = new ActorState();
a.Id = actorId;
try
{
/* var maxId = existingActorStates.Any() ? existingActorStates.Max(x => x.Id) : -1;
if (actorId > (maxId + 20))
{
// we're probably lost. Awwww.
a.KnownBits = br.GetBits(startPosition, br.Position - startPosition);
return a;
}
*/
frameActorStates.Add(a);
if (br.ReadBit())
{
if (br.ReadBit())
{
a.State = "New";
a.Unknown1 = br.ReadBit();
a.TypeId = br.ReadInt32();
a.TypeName = objectIndexToName[(int)a.TypeId.Value];
var classMap = ObjectNameToClassNetCache(a.TypeName, objectIndexToName, classNetCache);
a.ClassName = objectIndexToName[classMap.ObjectIndex];
// Come up with something more foolproof for this
/*
if ( a.TypeName.Contains(":"))
{
// Nope, we think we're a property type. We're lost!
a.Failed = true;
return a;
}
* */
if (a.ClassName == "TAGame.CrowdActor_TA"
|| a.ClassName == "TAGame.CrowdManager_TA"
|| a.ClassName == "TAGame.VehiclePickup_Boost_TA"
|| a.ClassName == "Core.Object")
{
a.KnownBits = br.GetBits(startPosition, br.Position - startPosition);
a.Complete = true;
return a;
}
a.Position = Vector3D.Deserialize(br);
if (a.ClassName == "Engine.GameReplicationInfo"
|| a.ClassName == "TAGame.GameEvent_SoccarSplitscreen_TA"
|| a.ClassName == "TAGame.CarComponent_Boost_TA"
|| a.ClassName == "TAGame.CarComponent_Jump_TA"
|| a.ClassName == "TAGame.CarComponent_DoubleJump_TA"
|| a.ClassName == "TAGame.CarComponent_Dodge_TA"
|| a.ClassName == "TAGame.CarComponent_FlipCar_TA"
|| a.ClassName == "TAGame.Team_TA"
|| a.ClassName == "TAGame.PRI_TA"
|| a.ClassName == "TAGame.GameEvent_Soccar_TA")
{
a.Complete = true;
}
else if (a.ClassName == "TAGame.Ball_TA"
|| a.ClassName == "TAGame.Car_TA")
{
if (br.ReadBit())
{
br.ReadByte();
}
if (br.ReadBit())
{
br.ReadByte();
}
if (br.ReadBit())
{
br.ReadByte();
}
a.Complete = true;
}
}
else
{
a.State = "Existing";
a.TypeId = existingActorStates.Where(x => x.Id == a.Id).Single().TypeId;
a.TypeName = objectIndexToName[(int)a.TypeId.Value];
var classMap = ObjectNameToClassNetCache(a.TypeName, objectIndexToName, classNetCache);
a.ClassName = objectIndexToName[classMap.ObjectIndex];
a.Properties = new List<ActorStateProperty>();
ActorStateProperty lastProp = null;
while ((lastProp == null || lastProp.IsComplete) && br.ReadBit())
{
lastProp = ActorStateProperty.Deserialize(classMap, objectIndexToName, br);
a.Properties.Add(lastProp);
}
a.Complete = lastProp.IsComplete;
if ( lastProp.Data.Count > 0 && lastProp.Data.Last().ToString() == "FAILED")
{
a.Failed = true;
}
var endPosition = br.Position;
}
}
else
{
a.State = "Deleted";
var actor = existingActorStates.Where(x => x.Id == a.Id).SingleOrDefault();
if (actor != null) // TODO remove this someday. Only here because we might be deleting objects we havent figured out how to parse yet
{
a.TypeId = actor.TypeId;
a.TypeName = objectIndexToName[(int)a.TypeId.Value];
var classMap = ObjectNameToClassNetCache(a.TypeName, objectIndexToName, classNetCache);
a.ClassName = objectIndexToName[classMap.ObjectIndex];
}
a.Complete = true;
var endPosition = br.Position;
}
}
catch(Exception)
{
// eat exceptions for now
int g = 56;
a.Failed = true;
}
finally
{
a.KnownBits = br.GetBits(startPosition, br.Position - startPosition);
}
return a;
}
public static ActorStateProperty Deserialize(IClassNetCache classMap, IDictionary<int, string> objectIndexToName, BitReader br)
{
var asp = new ActorStateProperty();
var startPosition = br.Position;
var maxPropId = classMap.MaxPropertyId;
//var idBitLen = Math.Floor(Math.Log10(maxPropId) / Math.Log10(2)) + 1;
var className = objectIndexToName[classMap.ObjectIndex];
asp.PropertyId = br.ReadInt32Max(maxPropId + 1);// br.ReadInt32FromBits((int)idBitLen);
asp.MaxPropertyId = maxPropId;
asp.PropertyName = objectIndexToName[classMap.GetProperty(asp.PropertyId).Index];
asp.Data = new List<object>();
try
{
switch (asp.PropertyName)
{
case "TAGame.GameEvent_TA:ReplicatedStateIndex":
asp.Data.Add(br.ReadInt32Max(140)); // number is made up, I dont know the max yet
asp.IsComplete = true;
break;
case "TAGame.RBActor_TA:ReplicatedRBState":
asp.Data.Add(br.ReadBit());
asp.Data.Add(Vector3D.Deserialize2(20, br));
var rot = Vector3D.DeserializeFixed(br);
asp.Data.Add(rot);
// Sometimes these two vectors are missing?
// Wild guess: They're momentum vectors, and only there when moving?
// Well, how do I know they're moving without momentum vectors... hm.
if (!(rot.X < -1 && rot.Y < -1 && rot.Z < -1))
{
asp.Data.Add(Vector3D.Deserialize2(20, br));
asp.Data.Add(Vector3D.Deserialize2(20, br));
}
asp.IsComplete = true;
break;
case "TAGame.Team_TA:GameEvent":
case "TAGame.CrowdActor_TA:ReplicatedOneShotSound":
case "TAGame.CrowdManager_TA:ReplicatedGlobalOneShotSound":
case "Engine.Actor:Owner":
case "TAGame.GameEvent_Soccar_TA:RoundNum":
case "Engine.GameReplicationInfo:GameClass":
case "TAGame.GameEvent_TA:BotSkill":
case "Engine.PlayerReplicationInfo:Team":
case "TAGame.CrowdManager_TA:GameEvent":
case "Engine.Pawn:PlayerReplicationInfo":
//case "TAGame.VehiclePickup_TA:ReplicatedPickupData":
asp.Data.Add(br.ReadBit());
asp.Data.Add(br.ReadInt32());
asp.IsComplete = true;
break;
case "TAGame.CarComponent_TA:Vehicle":
// 110101111 // TAGame.CarComponent_Jump_TA
// 100111111 // TAGame.CarComponent_FlipCar_TA
asp.Data.Add(br.ReadBit());
if (className == "TAGame.CarComponent_Jump_TA"
|| className == "TAGame.CarComponent_FlipCar_TA"
|| className == "TAGame.CarComponent_Boost_TA"
|| className == "TAGame.CarComponent_Dodge_TA"
|| className == "TAGame.CarComponent_DoubleJump_TA")
{
asp.Data.Add(br.ReadInt32());
}
else
{
asp.Data.Add(br.ReadByte());
}
asp.IsComplete = true;
break;
case "Engine.PlayerReplicationInfo:PlayerName":
case "Engine.GameReplicationInfo:ServerName":
asp.Data.Add(br.ReadString());
asp.IsComplete = true;
break;
case "TAGame.GameEvent_Soccar_TA:SecondsRemaining":
case "TAGame.GameEvent_TA:ReplicatedGameStateTimeRemaining":
case "TAGame.CrowdActor_TA:ReplicatedCountDownNumber":
case "TAGame.CrowdActor_TA:ModifiedNoise":
case "TAGame.GameEvent_Team_TA:MaxTeamSize":
asp.Data.Add(br.ReadInt32());
asp.IsComplete = true;
break;
case "TAGame.VehiclePickup_TA:ReplicatedPickupData":
// 1011101000000000000000000000000001
// 0111111111111111111111111111111110
// 1111001000000000000000000000000001
// 1000001000000000000000000000000001
// 1111110000000000000000000000000001
// 1101110000000000000000000000000001
// 111111111
// 100000001
// 101001111
var bit1 = br.ReadBit();
var byt = br.ReadByte();
var bit2 = (byt & 0x80) > 0;
if (bit1 == bit2)
{
asp.Data.Add(bit1);
asp.Data.Add(byt);
}
else
{
asp.Data.Add(bit1);
var bytes = new byte[4];
bytes[0] = byt;
bytes[1] = br.ReadByte();
bytes[2] = br.ReadByte();
bytes[3] = br.ReadByte();
asp.Data.Add(BitConverter.ToInt32(bytes, 0));
asp.Data.Add(br.ReadBit());
}
asp.IsComplete = true;
break;
case "Engine.Actor:bNetOwner":
case "Engine.Actor:bBlockActors":
// this doesnt look right...
asp.Data.Add(br.ReadBit());
asp.Data.Add(br.ReadBit());
asp.Data.Add(br.ReadBit());
asp.IsComplete = true;
break;
case "Engine.Pawn:DrivenVehicle":
asp.Data.Add(br.ReadInt32());
asp.Data.Add(br.ReadBit());
asp.Data.Add(br.ReadBit());
asp.IsComplete = true;
break;
case "Engine.Actor:DrawScale":
// Might be more properties in this sample data
// 100011000000000000010000000001001110010100000001000000000000000000000000000000110000000000000000000100000000010000000001000110000000000010101
// 1011010000000100010000000011001110010100000010000000000000000000000000000011100000000000000001001000000000010000000000100110101100000000101010
// 1011010000000011110000000001111111000100000010000000000000000000000000000001100000000000000000101000000000001000000000001110111111100000000101010
break;
case "Engine.PlayerReplicationInfo:Ping":
case "TAGame.Vehicle_TA:ReplicatedSteer":
case "TAGame.Vehicle_TA:ReplicatedThrottle":
case "TAGame.PRI_TA:CameraYaw":
case "TAGame.PRI_TA:CameraPitch":
asp.Data.Add(br.ReadByte());
asp.IsComplete = true;
break;
case "Engine.Actor:Location":
case "TAGame.CarComponent_Dodge_TA:DodgeTorque":
asp.Data.Add(Vector3D.Deserialize(br));
asp.IsComplete = true;
break;
case "Engine.Actor:bCollideWorld":
case "Engine.PlayerReplicationInfo:bReadyToPlay":
case "TAGame.Vehicle_TA:bReplicatedHandbrake":
case "TAGame.Vehicle_TA:bDriving":
//asp.Data.Add(Vector3D.Deserialize(5, br));
asp.Data.Add(br.ReadBit());
asp.IsComplete = true;
break;
case "TAGame.PRI_TA:bUsingBehindView":
case "TAGame.PRI_TA:bUsingSecondaryCamera":
asp.Data.Add(br.ReadBit());
asp.IsComplete = true;
break;
case "TAGame.CarComponent_TA:ReplicatedActive":
// example data
// 0111111111111111111111111111111110
asp.Data.Add(br.ReadByte());
/*
asp.Data.Add(br.ReadBit());
if ( (bool)asp.Data[0])
{
asp.Data.Add(br.ReadInt32FromBits(7));
}*/
asp.IsComplete = true;
break;
case "Engine.Actor:Role":
asp.Data.Add(br.ReadInt32FromBits(11));
asp.IsComplete = true;
break;
/*case "Engine.Actor:RelativeRotation": //SWAG
asp.Data.Add(br.ReadBit());
asp.Data.Add(br.ReadByte());
asp.Data.Add(br.ReadInt32());
asp.IsComplete = true;
break;*/
case "Engine.PlayerReplicationInfo:UniqueId":
asp.Data.Add(br.ReadBit());
asp.Data.Add(br.ReadByte());
asp.IsComplete = true;
break;
}
}
catch(Exception)
{
asp.Data.Add("FAILED");
}
finally
{
asp.KnownBits = br.GetBits(startPosition, br.Position - startPosition);
}
return asp;
}