static void Main(string[] args)
{
Console.OutputEncoding = System.Text.Encoding.UTF8;
Chessboard testBoard = new Chessboard();
while (true)
{
testBoard.displayBoard(1);
Regex validMove = new Regex("^[a-hA-H][1-8]-[a-hA-H][1-8]$");
String lastMove = "";
while (testBoard.stringMakeMove(lastMove, 1) == 0)
{
Console.Write("Please enter a valid move: ");
lastMove = Console.ReadLine();
}
Console.WriteLine("Valid move! Score: " + testBoard.evaluateBoard());
testBoard.displayBoard(1);
int[][] minMaxResult = minimax(3, testBoard, 1);
Console.WriteLine("\r\n\r\nComputer made move " + moveToText(minMaxResult[1], minMaxResult[2]) + "\r\n");
testBoard.stringMakeMove(moveToText(minMaxResult[1], minMaxResult[2]), -1);
}
/*
* Console.WriteLine();
* Dictionary<int[], List<int[]>> currentLegalMoves = testBoard.getLegalMoves(-1, true);
* foreach (KeyValuePair<int[], List<int[]>> moveSet in currentLegalMoves) {
* foreach (int[] move in moveSet.Value) {
* Console.WriteLine("Legal move: " + (char)(moveSet.Key[1] + 65) + (moveSet.Key[0] + 1) + "-" + (char)(move[1] + 65) + (move[0] + 1));
* Chessboard nextMove = Chessboard.DeepCopy(testBoard);
* nextMove.stringMakeMove(Chessboard.moveToText(moveSet.Key, move), -1);
* // nextMove.displayBoard(1);
* // Console.WriteLine("Score for this board: " + nextMove.evaluateBoard());
* // Console.WriteLine();
* }
* }
* Console.WriteLine();
*
* Console.WriteLine(Convert.ToInt32(Console.ReadLine()));
*
* int[] moveToCheck = new int[] { Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()) };
* Console.WriteLine(currentLegalMoves[moveToCheck]);
*
*
*/
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
static public int[][] minimax(int layers, Chessboard board, int player)
{
if (layers == 0)
{
int[][] highScoreArr = new int[2][];
highScoreArr[0] = new int[2] {
board.evaluateBoard(), 0
};
highScoreArr[1] = new int[2] {
0, 0
};
// Console.WriteLine("Final board score: " + highScoreArr[0][0]);
return(highScoreArr);
}
else
{
Dictionary <int[], List <int[]> > moves = board.getLegalMoves(player, true);
int score = 0;
bool firstRun = true;
int highScore = 0;
int[] bestMoveTo = { 0, 0 };
int[] bestMoveFrom = { 0, 0 };
foreach (KeyValuePair <int[], List <int[]> > moveSet in moves)
{
foreach (int[] move in moveSet.Value)
{
Chessboard newBoard = Chessboard.DeepCopy(board);
newBoard.stringMakeMove(moveToText(moveSet.Key, move), player);
if (firstRun)
{
score = minimax(layers - 1, newBoard, -player)[0][0];
highScore = score;
bestMoveFrom = moveSet.Key;
bestMoveTo = move;
firstRun = false;
}
else
{
score = minimax(layers - 1, newBoard, -player)[0][0];
}
if ((score > highScore && player == 1) || (score < highScore && player == -1))
{
// Console.WriteLine("Sick move found");
highScore = score;
bestMoveFrom = moveSet.Key;
bestMoveTo = move;
}
}
}
int[][] highScoreArr = new int[3][];
highScoreArr[0] = new int[2] {
highScore, 0
};
highScoreArr[1] = bestMoveFrom;
highScoreArr[2] = bestMoveTo;
// if (layers == 2) { Console.WriteLine("Best move is " + bestMoveFrom[0] + ":" + bestMoveFrom[1] + " -> " + bestMoveTo[0] + ":" + bestMoveTo[1]); }
if (layers == 2)
{
Console.Write(".");
}
return(highScoreArr);
}
}
