public void Test1()
{
var first = new[]
{
Played.Self, Played.Empty, Played.Empty,
Played.Empty, Played.Self, Played.Empty,
Played.Empty, Played.Empty, Played.Self,
};
var empty = new[]
{
Played.Empty, Played.Empty, Played.Empty,
Played.Empty, Played.Empty, Played.Empty,
Played.Empty, Played.Empty, Played.Empty,
};
var board = new[]
{
first, empty, empty,
empty, empty, empty,
empty, empty, empty,
};
var score = Constants.WinCorner + Constants.CenterSquareAnyBoard + Constants.SmallBoardWin;
Assert.AreEqual(AlgoHeuristic.ComputeScore(board, AlgoHeuristic.GetBoardResult(board)), score);
Invert(board);
Assert.AreEqual(AlgoHeuristic.ComputeScore(board, AlgoHeuristic.GetBoardResult(board)), score * -1);
}
public void TestScoringEmpty()
{
var board = new Played[9][];
for (var i = 0; i < 9; i++)
{
board[i] = new Played[9];
for (var j = 0; j < 9; j++)
{
board[i][j] = Played.Empty;
}
}
var score = AlgoHeuristic.ComputeScore(board, AlgoHeuristic.GetBoardResult(board));
Assert.AreEqual(score, 0);
}
public void TestTwoWinningCount()
{
var board = new[]
{
Played.Self, Played.Empty, Played.Empty,
Played.Empty, Played.Self, Played.Empty,
Played.Empty, Played.Empty, Played.Empty
};
Assert.AreEqual(AlgoHeuristic.TwoWinningCount(board, Player.Self), 1);
board = new[]
{
Played.Self, Played.Empty, Played.Empty,
Played.Empty, Played.Self, Played.Empty,
Played.Self, Played.Empty, Played.Empty
};
Assert.AreEqual(AlgoHeuristic.TwoWinningCount(board, Player.Self), 3);
Assert.AreEqual(AlgoHeuristic.TwoWinningCount(board, Player.Opponent), 0);
}
private static int NegaMax(GameState gameState, int depth, int alpha, int beta, int color)
{
if (depth == 0 || gameState.IsTerminated())
{
if (gameState.Score != null)
{
return(gameState.Score.Value);
}
var score = color * AlgoHeuristic.ComputeScore(gameState.Board, gameState.BoardResult);
gameState.Score = score;
return(score);
}
if (gameState.ChildStates == null)
{
var stopWatch = new Stopwatch();
stopWatch.Start();
gameState.GenerateChildrenState(1);
stopWatch.Stop();
Monitoring.ChildrenGenerationTime += stopWatch.Elapsed.TotalSeconds;
}
var value = int.MinValue;
foreach (var childState in gameState.ChildStates)
{
value = Math.Max(value, -1 * NegaMax(childState, depth - 1, -beta, -alpha, -color));
alpha = Math.Max(alpha, value);
if (alpha >= beta)
{
break;
}
}
gameState.Score = value;
return(value);
}
public void Test2()
{
var board = new[]
{
new[]
{
Played.Opponent, Played.Self, Played.Empty,
Played.Empty, Played.Empty, Played.Empty,
Played.Empty, Played.Empty, Played.Empty,
},
new[]
{
Played.Empty, Played.Self, Played.Empty,
Played.Opponent, Played.Empty, Played.Empty,
Played.Empty, Played.Empty, Played.Empty,
},
new[]
{
Played.Empty, Played.Self, Played.Empty,
Played.Empty, Played.Empty, Played.Empty,
Played.Empty, Played.Self, Played.Empty,
},
new[]
{
Played.Self, Played.Empty, Played.Empty,
Played.Opponent, Played.Opponent, Played.Opponent,
Played.Empty, Played.Self, Played.Empty,
},
new[]
{
Played.Self, Played.Opponent, Played.Empty,
Played.Self, Played.Empty, Played.Empty,
Played.Self, Played.Opponent, Played.Opponent,
},
new[]
{
Played.Empty, Played.Empty, Played.Opponent,
Played.Empty, Played.Self, Played.Empty,
Played.Opponent, Played.Empty, Played.Empty,
},
new[]
{
Played.Empty, Played.Empty, Played.Opponent,
Played.Opponent, Played.Empty, Played.Empty,
Played.Self, Played.Self, Played.Self,
},
new[]
{
Played.Empty, Played.Empty, Played.Empty,
Played.Empty, Played.Empty, Played.Empty,
Played.Opponent, Played.Empty, Played.Empty,
},
new[]
{
Played.Opponent, Played.Self, Played.Empty,
Played.Empty, Played.Empty, Played.Self,
Played.Empty, Played.Opponent, Played.Self,
}
};
Assert.AreEqual(44, AlgoHeuristic.ComputeScore(board, AlgoHeuristic.GetBoardResult(board)));
Invert(board);
Assert.AreEqual(-44, AlgoHeuristic.ComputeScore(board, AlgoHeuristic.GetBoardResult(board)));
}
