Читать книгу Справочник Жаркова по проектированию и программированию искусственного интеллекта. Том 2: Программирование на Visual C# искусственного интеллекта (продолжение 1) - Валерий Алексеевич Карданов, Дарья Андреевна Самсонова, Наталья Сергеевна Кузьмина - Страница 6

Random myRandom = new Random ();

Label [] boxArray = new Label [9];

bool xTurn;

bool canClick = false;

int numberClicks;

String [] possibleWins = new String [8];

bool gameOver;

//System.Media.SoundPlayer drawSound;

//System.Media.SoundPlayer winSound;

private void lblBox_Click (object sender, EventArgs e)

{

String whoWon = «»;

int i;

if (canClick)

{

// see which box is clicked

Label clickedBox;

clickedBox = (Label) sender;

// last digit of name (-1) is index

i = Convert.ToInt32(clickedBox.Name [

clickedBox.Name. Length – 1].ToString ()) – 1;

// if already clicked then exit

if (boxArray [i].Text!= «»)

return;

numberClicks++;

if (xTurn)

{

boxArray [i].Text = «X»;

xTurn = false;

lblMessage. Text = «O’s Turn»;

}

else

{

boxArray [i].Text = «O»;

xTurn = true;

lblMessage. Text = «X’s Turn»;

}

// check for win – will establish a value for WhoWon

whoWon = CheckForWin ();

if (whoWon!= «»)

{

//winSound.Play ();

lblMessage. Text = whoWon + " wins!»;

gameOver = true;

btnStartStop.PerformClick ();

return;

}

else if (numberClicks == 9)

{

// draw

//drawSound.Play ();

lblMessage. Text = «It’s a draw!»;

gameOver = true;

btnStartStop.PerformClick ();

return;

}

if (rdoOnePlayer.Checked)

if ((xTurn && rdoComputerFirst.Checked) ||

(!xTurn && rdoYouFirst.Checked))

ComputerTurn ();

}

}

private String CheckForWin ()

{

String winner = «»;

int [] boxNumber = new int [3];

String [] mark = new String [3];

// check all possible for wins

for (int i = 0; i <8; i++)

{

for (int j = 0; j <3; j++)

{

boxNumber [j] = Convert.ToInt32 (

possibleWins[i][j].ToString ());

mark [j] = boxArray [boxNumber [j]].Text;

}

if (mark [0] == mark [1] && mark [0] == mark [2] &&

mark [1] ==

mark [2] && mark [0]!= «»)

{

// we have a winner

winner = mark [0];

for (int j = 0; j <3; j++)

boxArray[boxNumber[j]].BackColor =

Color.Red;

}

}

return (winner);

}

private void ComputerTurn ()

{

int selectedBox;

int i, n;

int j, k;

String computerMark, playerMark, markToFind;

int [] boxNumber = new int [3];

String [] mark = new String [3];

int emptyBox;

int [] bestMoves = {4, 0, 2, 6, 8, 1, 3, 5, 7};

if (rdoRandom.Checked)

{

// random logic

// put mark in Nth available square

n = myRandom.Next (9 – numberClicks) +1;

i = 0;

for (selectedBox = 0; selectedBox <9;

selectedBox++)

{

if (boxArray [selectedBox].Text == «»)

i++;

if (i == n)

break;

}

// put mark in SelectedBox

lblBox_Click (boxArray [selectedBox], null);

}

else

{

// smart computer

// determine who has what mark

if (rdoComputerFirst.Checked)

{

computerMark = «X»;

playerMark = «O»;

}

else

{

computerMark = «O»;

playerMark = «X»;

}

// Step 1 (K = 1) – check for win —

// see if two boxes hold

// computer mark and one is empty

// Step 2 (K = 2) – check for block —

// see if two boxes hold

// player mark and one is empty

for (k = 1; k <= 2; k++)

{

if (k == 1)

markToFind = computerMark;

else

markToFind = playerMark;

for (i = 0; i <8; i++)

{

n = 0;

emptyBox = 0;

for (j = 0; j <3; j++)

{

boxNumber [j] = Convert.ToInt32 (

possibleWins[i][j].ToString ());

mark [j] = boxArray [boxNumber [j]].Text;

if (mark [j] == markToFind)

n++;

else if (mark [j] == «»)

emptyBox = boxNumber [j];

}

if (n == 2 && emptyBox!= 0)

{

// mark empty box to win (K = 1) or

// block (K = 2)

lblBox_Click (boxArray [emptyBox], null);

return;

}

}

}

// Step 3 – find next best move

for (i = 0; i <9; i++)

{

if (boxArray [bestMoves [i]].Text == «»)

{

lblBox_Click (boxArray [bestMoves [i]], null);

return;

private void frmTicTacToe_Load (object sender, EventArgs e)

{

//’establish array

boxArray [0] = lblBox1;

boxArray [1] = lblBox2;

boxArray [2] = lblBox3;

boxArray [3] = lblBox4;

boxArray [4] = lblBox5;

boxArray [5] = lblBox6;

boxArray [6] = lblBox7;

boxArray [7] = lblBox8;

boxArray [8] = lblBox9;

// possible wins

possibleWins [0] = «012»;

possibleWins [1] = «345»;

possibleWins [2] = «678»;

possibleWins [3] = «036»;

possibleWins [4] = «147»;

possibleWins [5] = «258»;

possibleWins [6] = «048»;

possibleWins [7] = «246»;

// clear boxes

for (int i = 0; i <9; i++)

boxArray [i].Text = «»;

lblMessage. Text = «Game Stopped»;

grpFirst. Enabled = false;

grpComputer. Enabled = false;

//drawSound = new System.Media.SoundPlayer (

//Application.StartupPath + "\\beep. wav»);

//winSound = new System.Media.SoundPlayer (

//Application.StartupPath + "\\tada. wav»);

private void btnStartStop_Click (object sender, EventArgs e)

{

if (btnStartStop. Text == «Start Game»)

{

btnStartStop. Text = «Stop Game»;

grpPlayers. Enabled = false;

grpFirst. Enabled = false;

grpComputer. Enabled = false;

btnExit. Enabled = false;

xTurn = true;

lblMessage. Text = «X’s Turn»;

// reset boxes

for (int i = 0; i <9; i++)

{

boxArray [i].Text = «»;

boxArray[i].BackColor = Color. White;

}

canClick = true;

numberClicks = 0;

gameOver = false;

if (rdoComputerFirst.Checked &&

rdoOnePlayer.Checked)

ComputerTurn ();

}

else

{

btnStartStop. Text = «Start Game»;

if (!gameOver)

lblMessage. Text = «Game Stopped»;

grpPlayers. Enabled = true;

if (rdoOnePlayer.Checked)

{

grpFirst. Enabled = true;

grpComputer. Enabled = true;

}

btnExit. Enabled = true;

canClick = false;

private void rdoOnePlayer_Click (object sender, EventArgs e)

{

grpFirst. Enabled = true;

grpComputer. Enabled = true;

private void rdoTwoPlayers_Click (object sender, EventArgs e)

{

grpFirst. Enabled = false;

grpComputer. Enabled = false;