/// <summary>
/// Find best move async
/// </summary>
/// <returns></returns>
protected override Task MakeTurnAsync()
{
Action action = () =>
{
if (PlayersTurn == TicTacToe.Turn.PlayerX)
{
_computer = Board.ElementType.X;
_opponent = Board.ElementType.O;
}
else
{
_isFirstTurn = false;
_computer = Board.ElementType.O;
_opponent = Board.ElementType.X;
}
var bestMove = new Move();
if (_isFirstTurn)
{
bestMove = Move.Random(0, 3, 0, 3);
_isFirstTurn = false;
}
else
{
var maxDepth = 0;
switch (_difficulty)
{
case DifficultyType.Easy:
maxDepth = 1;
break;
case DifficultyType.Medium:
maxDepth = 4;
break;
case DifficultyType.Hard:
maxDepth = 7;
break;
default:
break;
}
bestMove = FindBestMove(CurrentBoard, maxDepth);
}
BestMoveFound.Invoke(bestMove);
};
var task = Task.Factory.StartNew(action);
return(task);
}
private void OnBestMoveFound(BestMoveParams bestMoveParams, EvaluatedMove evaluatedMove)
{
if (null == evaluatedMove)
{
throw new ArgumentNullException(nameof(evaluatedMove));
}
if (evaluatedMove != bestMoveParams.BestMove)
{
BestMoveFound?.Invoke(this, new BestMoveFoundEventArgs(evaluatedMove.Move, evaluatedMove.Depth, evaluatedMove.ScoreAfterMove));
bestMoveParams.BestMove = evaluatedMove;
}
}
private void OnOutputDataReceived(object sender, DataReceivedEventArgs e)
{
if (string.IsNullOrWhiteSpace(e.Data))
{
return;
}
string command;
string[] output;
if (e.Data.Contains(" "))
{
int indexOfSpace = e.Data.IndexOf(' ');
command = e.Data.Substring(0, indexOfSpace);
string data = e.Data.Substring(indexOfSpace + 1);
if (data.Contains(" "))
{
output = data.Split(' ');
}
else
{
output = new string[1];
output[0] = data;
}
}
else
{
command = e.Data;
output = null;
}
switch (command)
{
case "id":
switch (output[0])
{
case "name":
Name = e.Data.Substring(8);
break;
case "author":
Author = e.Data.Substring(10);
break;
}
break;
case "uciok":
_autoResetEvent.Set();
break;
case "readyok":
_autoResetEvent.Set();
break;
case "bestmove":
BestMoveFound?.Invoke(e.Data.Substring(9));
break;
case "copyregistration":
break;
case "registration":
break;
case "info":
string[] infoComponents = output;
List <InfoType> types = new List <InfoType>();
List <string> values = new List <string>();
bool isCurrMove = true;
for (int i = 0; i < infoComponents.Length; i++)
{
if (infoComponents[i] == "pv")
{
isCurrMove = false;
break;
}
}
int currentType = -1;
string currentInfoData = "";
for (int i = 0; i < infoComponents.Length; i++)
{
bool infoType = false;
for (int typeI = 0; typeI < _infoTypeNames.Length; typeI++)
{
if (infoComponents[i] == _infoTypeNames[typeI])
{
if (currentInfoData != "" && currentType != -1)
{
OutputDataInfoReceived?.Invoke(isCurrMove, currentInfoData, (InfoType)currentType);
}
if (!isCurrMove)
{
types.Add((InfoType)currentType);
values.Add(currentInfoData);
}
currentType = typeI;
currentInfoData = "";
infoType = true;
break;
}
}
if (!infoType)
{
currentInfoData += $"{infoComponents[i]} ";
}
}
OutputDataInfoReceived?.Invoke(isCurrMove, currentInfoData, (InfoType)currentType);
if (!isCurrMove)
{
types.Add((InfoType)currentType);
values.Add(currentInfoData);
Evaluation evaluation = new Evaluation(types.ToArray(), values.ToArray());
EvaluationReceived?.Invoke(evaluation);
}
break;
case "option":
string option = e.Data.Substring(12);
if (!_options.Contains(option))
{
_options.Add(e.Data.Substring(12));
}
break;
}
}