Inna/CypherCore
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Update some of warden.

Browse Source
This commit is contained in:
hondacrx
2022-10-30 16:41:43 -04:00
parent 572cdc1483
commit 69a7e08402
12 changed files with 1291 additions and 493 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Source/Game/Warden/WardenWin.cs
+312 -203
View File
@@ -28,11 +28,28 @@ namespace Game
{
class WardenWin : Warden
{
// GUILD is the shortest string that has no client validation (RAID only sends if in a raid group)
static string _luaEvalPrefix = "local S,T,R=SendAddonMessage,function()";
static string _luaEvalMidfix = " end R=S and T()if R then S('_TW',";
static string _luaEvalPostfix = ",'GUILD')end";
uint _serverTicks;
CategoryCheck[] _checks = new CategoryCheck[(int)WardenCheckCategory.Max];
List<ushort> _currentChecks = new();
public WardenWin()
{
foreach (WardenCheckCategory category in Enum.GetValues<WardenCheckCategory>())
{
_checks[(int)category] = new CategoryCheck(Global.WardenCheckMgr.GetAvailableChecks(category).Shuffle().ToList());
}
}
public override void Init(WorldSession session, BigInteger k)
{
_session = session;
// Generate Warden Key
SHA1Randx WK = new(k.ToByteArray());
SessionKeyGenerator WK = new(k.ToByteArray());
WK.Generate(_inputKey, 16);
WK.Generate(_outputKey, 16);
@@ -46,31 +63,20 @@ namespace Game
Log.outDebug(LogFilter.Warden, " Seed: {0}", _seed.ToHexString());
Log.outDebug(LogFilter.Warden, "Loading Module...");
_module = GetModuleForClient();
MakeModuleForClient();
Log.outDebug(LogFilter.Warden, "Module Key: {0}", _module.Key.ToHexString());
Log.outDebug(LogFilter.Warden, "Module ID: {0}", _module.Id.ToHexString());
RequestModule();
}
public override ClientWardenModule GetModuleForClient()
public override void InitializeModuleForClient(out ClientWardenModule module)
{
ClientWardenModule mod = new();
uint length = (uint)WardenModuleWin.Module.Length;
// data assign
mod.CompressedSize = length;
mod.CompressedData = WardenModuleWin.Module;
mod.Key = WardenModuleWin.ModuleKey;
// md5 hash
System.Security.Cryptography.MD5 ctx = System.Security.Cryptography.MD5.Create();
ctx.Initialize();
ctx.TransformBlock(mod.CompressedData, 0, mod.CompressedData.Length, mod.CompressedData, 0);
ctx.TransformBlock(mod.Id, 0, mod.Id.Length, mod.Id, 0);
return mod;
module = new();
module.CompressedData = WardenModuleWin.Module;
module.CompressedSize = (uint)WardenModuleWin.Module.Length;
module.Key = WardenModuleWin.ModuleKey;
}
public override void InitializeModule()
@@ -79,7 +85,7 @@ namespace Game
// Create packet structure
WardenInitModuleRequest Request = new();
Request.Command1 = WardenOpcodes.Smsg_ModuleInitialize;
Request.Command1 = WardenOpcodes.SmsgModuleInitialize;
Request.Size1 = 20;
Request.Unk1 = 1;
Request.Unk2 = 0;
@@ -91,7 +97,7 @@ namespace Game
Request.Function1[3] = 0x00022910; // 0x00400000 + 0x00022910 SFileCloseFile
Request.CheckSumm1 = BuildChecksum(BitConverter.GetBytes(Request.Unk1), 20);
Request.Command2 = WardenOpcodes.Smsg_ModuleInitialize;
Request.Command2 = WardenOpcodes.SmsgModuleInitialize;
Request.Size2 = 8;
Request.Unk3 = 4;
Request.Unk4 = 0;
@@ -100,7 +106,7 @@ namespace Game
Request.Function2_set = 1;
Request.CheckSumm2 = BuildChecksum(BitConverter.GetBytes(Request.Unk2), 8);
Request.Command3 = WardenOpcodes.Smsg_ModuleInitialize;
Request.Command3 = WardenOpcodes.SmsgModuleInitialize;
Request.Size3 = 8;
Request.Unk5 = 1;
Request.Unk6 = 1;
@@ -110,7 +116,7 @@ namespace Game
Request.CheckSumm3 = BuildChecksum(BitConverter.GetBytes(Request.Unk5), 8);
Warden3DataServer packet = new();
packet.Data = EncryptData(Request.Write());
packet.Data = EncryptData(Request);
_session.SendPacket(packet);
}
@@ -120,11 +126,11 @@ namespace Game
// Create packet structure
WardenHashRequest Request = new();
Request.Command = WardenOpcodes.Smsg_HashRequest;
Request.Command = WardenOpcodes.SmsgHashRequest;
Request.Seed = _seed;
Warden3DataServer packet = new();
packet.Data = EncryptData(Request.Write());
packet.Data = EncryptData(Request);
_session.SendPacket(packet);
}
@@ -133,7 +139,8 @@ namespace Game
// Verify key
if (buff.ReadBytes(20) != WardenModuleWin.ClientKeySeedHash)
{
Log.outWarn(LogFilter.Warden, "{0} failed hash reply. Action: {0}", _session.GetPlayerInfo(), Penalty());
string penalty = ApplyPenalty();
Log.outWarn(LogFilter.Warden, "{0} failed hash reply. Action: {0}", _session.GetPlayerInfo(), penalty);
return;
}
@@ -147,126 +154,151 @@ namespace Game
_outputCrypto.PrepareKey(_outputKey);
_initialized = true;
_previousTimestamp = GameTime.GetGameTimeMS();
}
public override void RequestData()
static byte GetCheckPacketBaseSize(WardenCheckType type) => type switch
{
Log.outDebug(LogFilter.Warden, "Request data");
WardenCheckType.Driver => 1,
WardenCheckType.LuaEval => (byte)(1 + _luaEvalPrefix.Length - 1 + _luaEvalMidfix.Length - 1 + 4 + _luaEvalPostfix.Length - 1),
WardenCheckType.Mpq => 1,
WardenCheckType.PageA => 4 + 1,
WardenCheckType.PageB => 4 + 1,
WardenCheckType.Module => 4 + 20,
WardenCheckType.Mem => 1 + 4 + 1,
_ => 0,
};
// If all checks were done, fill the todo list again
if (_memChecksTodo.Empty())
_memChecksTodo.AddRange(Global.WardenCheckMgr.MemChecksIdPool);
static ushort GetCheckPacketSize(WardenCheck check)
{
int size = 1 + GetCheckPacketBaseSize(check.Type); // 1 byte check type
if (!check.Str.IsEmpty())
size += (check.Str.Length + 1); // 1 byte string length
if (!check.Data.Empty())
size += check.Data.Length;
if (_otherChecksTodo.Empty())
_otherChecksTodo.AddRange(Global.WardenCheckMgr.OtherChecksIdPool);
return (ushort)size;
}
public override void RequestChecks()
{
Log.outDebug(LogFilter.Warden, $"Request data from {_session.GetPlayerName()} (account {_session.GetAccountId()}) - loaded: {_session.GetPlayer() && !_session.PlayerLoading()}");
// If all checks for a category are done, fill its todo list again
foreach (WardenCheckCategory category in Enum.GetValues<WardenCheckCategory>())
{
var checks = _checks[(int)category];
if (checks.IsAtEnd() && !checks.Empty())
{
Log.outDebug(LogFilter.Warden, $"Finished all {category} checks, re-shuffling");
checks.Shuffle();
}
}
_serverTicks = GameTime.GetGameTimeMS();
ushort id;
WardenCheckType type;
WardenCheck wd;
_currentChecks.Clear();
// Build check request
for (uint i = 0; i < WorldConfig.GetUIntValue(WorldCfg.WardenNumMemChecks); ++i)
ByteBuffer buff = new();
buff.WriteUInt8((byte)WardenOpcodes.SmsgCheatChecksRequest);
foreach (var category in Enum.GetValues<WardenCheckCategory>())
{
// If todo list is done break loop (will be filled on next Update() run)
if (_memChecksTodo.Empty())
break;
if (WardenCheckManager.IsWardenCategoryInWorldOnly(category) && !_session.GetPlayer())
continue;
// Get check id from the end and remove it from todo
id = _memChecksTodo.Last();
_memChecksTodo.Remove(id);
var checks = _checks[(int)category];
for (uint i = 0, n = WorldConfig.GetUIntValue(WardenCheckManager.GetWardenCategoryCountConfig(category)); i < n; ++i)
{
if (checks.IsAtEnd()) // all checks were already sent, list will be re-filled on next Update() run
break;
// Add the id to the list sent in this cycle
_currentChecks.Add(id);
_currentChecks.Add(checks.currentIndex++);
}
}
ByteBuffer buffer = new();
buffer.WriteUInt8((byte)WardenOpcodes.Smsg_CheatChecksRequest);
_currentChecks = _currentChecks.Shuffle().ToList();
for (uint i = 0; i < WorldConfig.GetUIntValue(WorldCfg.WardenNumOtherChecks); ++i)
ushort expectedSize = 4;
_currentChecks.RemoveAll(id =>
{
// If todo list is done break loop (will be filled on next Update() run)
if (_otherChecksTodo.Empty())
break;
ushort thisSize = GetCheckPacketSize(Global.WardenCheckMgr.GetCheckData(id));
if ((expectedSize + thisSize) > 450) // warden packets are truncated to 512 bytes clientside
return true;
expectedSize += thisSize;
return false;
});
// Get check id from the end and remove it from todo
id = _otherChecksTodo.Last();
_otherChecksTodo.Remove(id);
// Add the id to the list sent in this cycle
_currentChecks.Add(id);
wd = Global.WardenCheckMgr.GetWardenDataById(id);
switch (wd.Type)
foreach (var id in _currentChecks)
{
WardenCheck check = Global.WardenCheckMgr.GetCheckData(id);
if (check.Type == WardenCheckType.LuaEval)
{
case WardenCheckType.MPQ:
case WardenCheckType.LuaStr:
case WardenCheckType.Driver:
buffer.WriteUInt8((byte)wd.Str.GetByteCount());
buffer.WriteString(wd.Str);
break;
default:
break;
buff.WriteUInt8((byte)(_luaEvalPrefix.Length - 1 + check.Str.Length + _luaEvalMidfix.Length - 1 + check.IdStr.Length + _luaEvalPostfix.Length - 1));
buff.WriteString(_luaEvalPrefix);
buff.WriteString(check.Str);
buff.WriteString(_luaEvalMidfix);
buff.WriteString(check.IdStr.ToString());
buff.WriteString(_luaEvalPostfix);
}
else if (!check.Str.IsEmpty())
{
buff.WriteUInt8((byte)check.Str.GetByteCount());
buff.WriteString(check.Str);
}
}
byte xorByte = _inputKey[0];
// Add TIMING_CHECK
buffer.WriteUInt8(0x00);
buffer.WriteUInt8((byte)((int)WardenCheckType.Timing ^ xorByte));
buff.WriteUInt8(0x00);
buff.WriteUInt8((byte)((int)WardenCheckType.Timing ^ xorByte));
byte index = 1;
foreach (var checkId in _currentChecks)
{
wd = Global.WardenCheckMgr.GetWardenDataById(checkId);
WardenCheck check = Global.WardenCheckMgr.GetCheckData(checkId);
type = wd.Type;
buffer.WriteUInt8((byte)((int)type ^ xorByte));
var type = check.Type;
buff.WriteUInt8((byte)((int)type ^ xorByte));
switch (type)
{
case WardenCheckType.Memory:
{
buffer.WriteUInt8(0x00);
buffer.WriteUInt32(wd.Address);
buffer.WriteUInt8(wd.Length);
break;
}
case WardenCheckType.Mem:
{
buff.WriteUInt8(0x00);
buff.WriteUInt32(check.Address);
buff.WriteUInt8(check.Length);
break;
}
case WardenCheckType.PageA:
case WardenCheckType.PageB:
{
buffer.WriteBytes(wd.Data.ToByteArray());
buffer.WriteUInt32(wd.Address);
buffer.WriteUInt8(wd.Length);
break;
}
case WardenCheckType.MPQ:
case WardenCheckType.LuaStr:
{
buffer.WriteUInt8(index++);
break;
}
{
buff.WriteBytes(check.Data);
buff.WriteUInt32(check.Address);
buff.WriteUInt8(check.Length);
break;
}
case WardenCheckType.Mpq:
case WardenCheckType.LuaEval:
{
buff.WriteUInt8(index++);
break;
}
case WardenCheckType.Driver:
{
buffer.WriteBytes(wd.Data.ToByteArray());
buffer.WriteUInt8(index++);
break;
}
{
buff.WriteBytes(check.Data);
buff.WriteUInt8(index++);
break;
}
case WardenCheckType.Module:
{
uint seed = RandomHelper.Rand32();
buffer.WriteUInt32(seed);
HmacHash hmac = new(BitConverter.GetBytes(seed));
hmac.Finish(wd.Str);
buffer.WriteBytes(hmac.Digest);
break;
}
{
uint seed = RandomHelper.Rand32();
buff.WriteUInt32(seed);
HmacHash hmac = new(BitConverter.GetBytes(seed));
hmac.Finish(check.Str);
buff.WriteBytes(hmac.Digest);
break;
}
/*case PROC_CHECK:
{
buff.append(wd.i.AsByteArray(0, false).get(), wd.i.GetNumBytes());
@@ -280,22 +312,31 @@ namespace Game
break; // Should never happen
}
}
buffer.WriteUInt8(xorByte);
buff.WriteUInt8(xorByte);
string idstring = "";
foreach (var id in _currentChecks)
idstring += $"{id} ";
if (buff.GetSize() == expectedSize)
{
Log.outDebug(LogFilter.Warden, $"Finished building warden packet, size is {buff.GetSize()} bytes");
Log.outDebug(LogFilter.Warden, $"Sent checks: {idstring}");
}
else
{
Log.outWarn(LogFilter.Warden, $"Finished building warden packet, size is {buff.GetSize()} bytes, but expected {expectedSize} bytes!");
Log.outWarn(LogFilter.Warden, $"Sent checks: {idstring}");
}
Warden3DataServer packet = new();
packet.Data = EncryptData(buffer.GetData());
packet.Data = EncryptData(buff.GetData());
_session.SendPacket(packet);
_dataSent = true;
string stream = "Sent check id's: ";
foreach (var checkId in _currentChecks)
stream += checkId + " ";
Log.outDebug(LogFilter.Warden, stream);
}
public override void HandleData(ByteBuffer buff)
public override void HandleCheckResult(ByteBuffer buff)
{
Log.outDebug(LogFilter.Warden, "Handle data");
@@ -307,7 +348,8 @@ namespace Game
if (!IsValidCheckSum(Checksum, buff.GetData(), Length))
{
Log.outWarn(LogFilter.Warden, "{0} failed checksum. Action: {1}", _session.GetPlayerInfo(), Penalty());
string penalty = ApplyPenalty();
Log.outWarn(LogFilter.Warden, "{0} failed checksum. Action: {1}", _session.GetPlayerInfo(), penalty);
return;
}
@@ -317,7 +359,8 @@ namespace Game
// @todo test it.
if (result == 0x00)
{
Log.outWarn(LogFilter.Warden, "{0} failed timing check. Action: {1}", _session.GetPlayerInfo(), Penalty());
string penalty = ApplyPenalty();
Log.outWarn(LogFilter.Warden, "{0} failed timing check. Action: {1}", _session.GetPlayerInfo(), penalty);
return;
}
@@ -339,98 +382,76 @@ namespace Game
foreach (var id in _currentChecks)
{
rd = Global.WardenCheckMgr.GetWardenDataById(id);
rs = Global.WardenCheckMgr.GetWardenResultById(id);
WardenCheck check = Global.WardenCheckMgr.GetCheckData(id);
type = rd.Type;
switch (type)
switch (check.Type)
{
case WardenCheckType.Memory:
case WardenCheckType.Mem:
{
byte result = buff.ReadUInt8();
if (result != 0)
{
byte Mem_Result = buff.ReadUInt8();
if (Mem_Result != 0)
{
Log.outDebug(LogFilter.Warden, "RESULT MEM_CHECK not 0x00, CheckId {0} account Id {1}", id, _session.GetAccountId());
checkFailed = id;
continue;
}
if (buff.ReadBytes(rd.Length).Compare(rs.ToByteArray()))
{
Log.outDebug(LogFilter.Warden, "RESULT MEM_CHECK fail CheckId {0} account Id {1}", id, _session.GetAccountId());
checkFailed = id;
continue;
}
Log.outDebug(LogFilter.Warden, "RESULT MEM_CHECK passed CheckId {0} account Id {1}", id, _session.GetAccountId());
break;
Log.outDebug(LogFilter.Warden, $"RESULT MEM_CHECK not 0x00, CheckId {id} account Id {_session.GetAccountId()}");
checkFailed = id;
continue;
}
byte[] expected = Global.WardenCheckMgr.GetCheckResult(id);
if (buff.ReadBytes((uint)expected.Length).Compare(expected))
{
Log.outDebug(LogFilter.Warden, $"RESULT MEM_CHECK fail CheckId {id} account Id {_session.GetAccountId()}");
checkFailed = id;
continue;
}
Log.outDebug(LogFilter.Warden, $"RESULT MEM_CHECK passed CheckId {id} account Id {_session.GetAccountId()}");
break;
}
case WardenCheckType.PageA:
case WardenCheckType.PageB:
case WardenCheckType.Driver:
case WardenCheckType.Module:
{
if (buff.ReadUInt8() != 0xE9)
{
byte value = 0xE9;
if (buff.ReadUInt8() != value)
{
if (type == WardenCheckType.PageA || type == WardenCheckType.PageB)
Log.outDebug(LogFilter.Warden, "RESULT PAGE_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId());
if (type == WardenCheckType.Module)
Log.outDebug(LogFilter.Warden, "RESULT MODULE_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId());
if (type == WardenCheckType.Driver)
Log.outDebug(LogFilter.Warden, "RESULT DRIVER_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId());
checkFailed = id;
continue;
}
if (type == WardenCheckType.PageA || type == WardenCheckType.PageB)
Log.outDebug(LogFilter.Warden, "RESULT PAGE_CHECK passed CheckId {0} account Id {1}", id, _session.GetAccountId());
else if (type == WardenCheckType.Module)
Log.outDebug(LogFilter.Warden, "RESULT MODULE_CHECK passed CheckId {0} account Id {1}", id, _session.GetAccountId());
else if (type == WardenCheckType.Driver)
Log.outDebug(LogFilter.Warden, "RESULT DRIVER_CHECK passed CheckId {0} account Id {1}", id, _session.GetAccountId());
break;
Log.outDebug(LogFilter.Warden, $"RESULT {check.Type} fail, CheckId {id} account Id {_session.GetAccountId()}");
checkFailed = id;
continue;
}
case WardenCheckType.LuaStr:
Log.outDebug(LogFilter.Warden, $"RESULT {check.Type} passed CheckId {id} account Id {_session.GetAccountId()}");
break;
}
case WardenCheckType.LuaEval:
{
byte result = buff.ReadUInt8();
if (result == 0)
buff.Skip(buff.ReadUInt8()); // discard attached string
Log.outDebug(LogFilter.Warden, $"LUA_EVAL_CHECK CheckId {id} account Id {_session.GetAccountId()} got in-warden dummy response ({result})");
break;
}
case WardenCheckType.Mpq:
{
byte result = buff.ReadUInt8();
if (result != 0)
{
byte Lua_Result = buff.ReadUInt8();
if (Lua_Result != 0)
{
Log.outDebug(LogFilter.Warden, "RESULT LUA_STR_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId());
checkFailed = id;
continue;
}
byte luaStrLen = buff.ReadUInt8();
if (luaStrLen != 0)
Log.outDebug(LogFilter.Warden, "Lua string: {0}", buff.ReadString(luaStrLen));
Log.outDebug(LogFilter.Warden, "RESULT LUA_STR_CHECK passed, CheckId {0} account Id {1}", id, _session.GetAccountId());
break;
Log.outDebug(LogFilter.Warden, $"RESULT MPQ_CHECK not 0x00 account id {_session.GetAccountId()}", _session.GetAccountId());
checkFailed = id;
continue;
}
case WardenCheckType.MPQ:
if (!buff.ReadBytes(20).Compare(Global.WardenCheckMgr.GetCheckResult(id))) // SHA1
{
byte Mpq_Result = buff.ReadUInt8();
if (Mpq_Result != 0)
{
Log.outDebug(LogFilter.Warden, "RESULT MPQ_CHECK not 0x00 account id {0}", _session.GetAccountId());
checkFailed = id;
continue;
}
if (!buff.ReadBytes(20).Compare(rs.ToByteArray())) // SHA1
{
Log.outDebug(LogFilter.Warden, "RESULT MPQ_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId());
checkFailed = id;
continue;
}
Log.outDebug(LogFilter.Warden, "RESULT MPQ_CHECK passed, CheckId {0} account Id {1}", id, _session.GetAccountId());
break;
Log.outDebug(LogFilter.Warden, $"RESULT MPQ_CHECK fail, CheckId {id} account Id {_session.GetAccountId()}");
checkFailed = id;
continue;
}
Log.outDebug(LogFilter.Warden, $"RESULT MPQ_CHECK passed, CheckId {id} account Id {_session.GetAccountId()}");
break;
}
default: // Should never happen
break;
}
@@ -438,18 +459,106 @@ namespace Game
if (checkFailed > 0)
{
WardenCheck check = Global.WardenCheckMgr.GetWardenDataById(checkFailed);
Log.outWarn(LogFilter.Warden, "{0} failed Warden check {1}. Action: {2}", _session.GetPlayerInfo(), checkFailed, Penalty(check));
WardenCheck check = Global.WardenCheckMgr.GetCheckData(checkFailed);
string penalty = ApplyPenalty(check);
Log.outWarn(LogFilter.Warden, $"{_session.GetPlayerInfo()} failed Warden check {checkFailed}. Action: {penalty}");
}
// Set hold off timer, minimum timer should at least be 1 second
uint holdOff = WorldConfig.GetUIntValue(WorldCfg.WardenClientCheckHoldoff);
_checkTimer = (holdOff < 1 ? 1 : holdOff) * Time.InMilliseconds;
}
}
uint _serverTicks;
List<ushort> _otherChecksTodo = new();
List<ushort> _memChecksTodo = new();
List<ushort> _currentChecks = new();
class WardenInitModuleRequest
{
public WardenOpcodes Command1;
public ushort Size1;
public uint CheckSumm1;
public byte Unk1;
public byte Unk2;
public byte Type;
public byte String_library1;
public uint[] Function1 = new uint[4];
public WardenOpcodes Command2;
public ushort Size2;
public uint CheckSumm2;
public byte Unk3;
public byte Unk4;
public byte String_library2;
public uint Function2;
public byte Function2_set;
public WardenOpcodes Command3;
public ushort Size3;
public uint CheckSumm3;
public byte Unk5;
public byte Unk6;
public byte String_library3;
public uint Function3;
public byte Function3_set;
public static implicit operator byte[](WardenInitModuleRequest request)
{
ByteBuffer buffer = new ByteBuffer();
buffer.WriteUInt8((byte)request.Command1);
buffer.WriteUInt16(request.Size1);
buffer.WriteUInt32(request.CheckSumm1);
buffer.WriteUInt8(request.Unk1);
buffer.WriteUInt8(request.Unk2);
buffer.WriteUInt8(request.Type);
buffer.WriteUInt8(request.String_library1);
foreach (var function in request.Function1)
buffer.WriteUInt32(function);
buffer.WriteUInt8((byte)request.Command2);
buffer.WriteUInt16(request.Size2);
buffer.WriteUInt32(request.CheckSumm2);
buffer.WriteUInt8(request.Unk3);
buffer.WriteUInt8(request.Unk4);
buffer.WriteUInt8(request.String_library2);
buffer.WriteUInt32(request.Function2);
buffer.WriteUInt8(request.Function2_set);
buffer.WriteUInt8((byte)request.Command3);
buffer.WriteUInt16(request.Size3);
buffer.WriteUInt32(request.CheckSumm3);
buffer.WriteUInt8(request.Unk5);
buffer.WriteUInt8(request.Unk6);
buffer.WriteUInt8(request.String_library3);
buffer.WriteUInt32(request.Function3);
buffer.WriteUInt8(request.Function3_set);
return buffer.GetData();
}
}
class CategoryCheck
{
public List<ushort> _checks = new();
public ushort currentIndex;
public CategoryCheck(List<ushort> checks)
{
_checks = checks;
currentIndex = 0;
}
public bool Empty()
{
return _checks.Empty();
}
public bool IsAtEnd()
{
return currentIndex >= _checks.Count;
}
public void Shuffle()
{
_checks = _checks.Shuffle().ToList();
currentIndex = 0;
}
}
}