public void Copy(Board board)
{
this.board = new Piece[8, 8];
this.turn = board.GetTurn();
this.playerColour = board.GetPlayerColour();
this.ai = board.GetAIState();
for (int i = 0; i < 8; i++)
for (int j = 0; j < 8; j++) {
if (board.GetPiece(i, j) != null) {
if (board.GetPiece(i, j).IsDux())
this.board[i, j] = new Dux(board.GetPiece(i, j).GetColour());
else
this.board[i, j] = new Pawn(board.GetPiece(i, j).GetColour());
}
else
this.board[i, j] = null;
}
}
// ClickHandler for gameButton.
private void GameButton_Click(object sender, EventArgs e)
{
Button b = (Button)sender;
ai = aiCheck.Checked;
playerColour = whiteBullet.Checked ? 1 : -1;
this.cpuImg.Location = playerColour == 1 ? new Point(515, 30) : new Point(515, 540);
if (ai)
this.cpuImg.Show();
else
this.cpuImg.Hide();
if (b.Text == "Play") {
b.Text = "Restart";
game = new Board();
PrintBoard();
} else {
RestartBoard();
this.msgBox.Text = "";
msg = "";
}
}
public static int[] MakeTurn(Board game, int level)
{
int[] bestMove = new int[4];
int mostValuable = -999999999;
int tempVal = 0;
for (int i = 0; i < 8; i++)
for (int j = 0; j < 8; j++)
{
for (int k = 0; k < 8; k++)
if (game.GetPiece(i, j) != null && game.GetPiece(k, j) == null) {
if (level < MAXLEVEL - 1)
tempVal = GoDeeper(game, i, j, k, j, level, mostValuable);
else
tempVal = EvaluateMove(game, i, j, k, j, level);
if (tempVal != -DONE && tempVal >= mostValuable) {
mostValuable = tempVal;
bestMove[0] = i;
bestMove[1] = j;
bestMove[2] = k;
bestMove[3] = j;
}
}
for (int l = 0; l < 8; l++)
if (game.GetPiece(i, j) != null && game.GetPiece(i, l) == null) {
if (level < MAXLEVEL - 1)
tempVal = GoDeeper(game, i, j, i, l, level, mostValuable);
else
tempVal = EvaluateMove(game, i, j, i, l, level);
if (tempVal != -DONE && tempVal >= mostValuable) {
mostValuable = tempVal;
bestMove[0] = i;
bestMove[1] = j;
bestMove[2] = i;
bestMove[3] = l;
}
}
}
/*
for (int l = 0; l < 8; l++) {
if ((i == k || j == l) && (game.GetPiece(i, j) != null && game.GetPiece(k, l) == null))
{
if (level < MAXLEVEL - 1)
tempVal = GoDeeper(game, i, j, k, l, level, mostValuable);
else
tempVal = EvaluateMove(game, i, j, k, l, level);
if (tempVal != -DONE && tempVal >= mostValuable)
{
mostValuable = tempVal;
bestMove[0] = i;
bestMove[1] = j;
bestMove[2] = k;
bestMove[3] = l;
}
}
}*/
// Debug
//if(level == 0)
// System.Windows.Forms.MessageBox.Show(mostValuable + "");
return bestMove;
}
private static int GoDeeper(Board currentBoard, int srcX, int srcY, int dstX, int dstY, int level, int highestValue)
{
int[] move = new int[]{srcX, srcY, dstX, dstY};
int[] arr;
Board tempBoard = new Board();
tempBoard.Copy(currentBoard);
if (tempBoard.UpdateBoard(srcX, srcY, dstX, dstY)) {
if (EvaluateBoard(tempBoard) < highestValue)
return DONE;
else
if (EvaluateBoard(tempBoard) < 9000 || EvaluateBoard(tempBoard) > -1000) {
arr = MakeTurn(tempBoard, level + 1);
tempBoard.UpdateBoard(arr[0], arr[1], arr[2], arr[3]);
return EvaluateBoard(tempBoard);
}
else
return EvaluateBoard(tempBoard);
}
return DONE;
}
private static int EvaluateMove(Board currentBoard, int srcX, int srcY, int dstX, int dstY, int level)
{
Board tempBoard = new Board();
tempBoard.Copy(currentBoard);
if (tempBoard.UpdateBoard(srcX, srcY, dstX, dstY))
return EvaluateBoard(tempBoard);
return DONE;
}
// Gets a board an evaluates it.
private static int EvaluateBoard(Board turn)
{
int value = 0;
int playerColour = turn.GetPlayerColour();
for (int i = 0; i < 8; i++)
for (int j = 0; j < 8; j++)
if (turn.GetPiece(i, j) != null) {
if (turn.GetPiece(i, j).GetColour() == playerColour)
value--;
else
value++;
if (turn.GetPiece(i, j).IsDux()) {
if (turn.GetPiece(i, j).GetColour() == playerColour)
if (turn.IsDuxStuck(i, j))
value += 9001;
if (turn.GetPiece(i, j).GetColour() == playerColour * -1)
if (turn.IsDuxStuck(i, j))
value -= 1337;
}
}
return value;
}