Home Web Development JavaScript Tic Tac Toe JavaScript Game With Source Code

Tic Tac Toe JavaScript Game With Source Code

March 30, 2019

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Tic Tac Toe in JavaScript: We all know about this game, and we also played this many times. Today, I will show how we can create this game in some web languages like HTML, CSS & JS. Tic tac toe is a very simple game, But its programming is not. This javascript program tracks your moves for the next automatic move, This is quite complicated. You can call it a small AI built-in javascript.

It is made possible with JQuery ( A JavaScript Framework ). In this program also have JQuery UI for better style and user interface. Previously I had created Snake Game In JavaScript, But this program is difficult compared to snake game. I am sharing the source code of this tic tac toe game, then you can understand this program. Because I can’t explain to you this program in articles or writing. I can teach you in video or when you will front me. But this time I don’t have enough time for creating videos, but I hope I will share videos also in future.

More Resource:

JavaScript Quiz Program | How to Create JS Quiz App

Game In JavaScript

Yes, we can create small games in javascript for web & android also. JavaScript is a beast in web programming or web apps development. You can create very basic to advance programs with it. You can see many online games, they are in HTML5 canvas with JavaScript. Now this kind of programs creation become easy with JQuery. I had seen a personal portfolio website with a cool game & also with his qualification, I forget that websites name. You can search for “games with javascript” on google after that, you can find many this kind of stuff.

Tic Tac Toe JavaScript Game – Source Code

So there is the source code of tic tac toe game. You have to create 3 files for this program.

index.html

Create a file named “index.html” and put these codes given here below.

<!DOCTYPE html>
<html >
<head>
  <meta charset="UTF-8">
  <title>JavaScript Tic Tac Toe | WebDevTrick.com</title>
  

  
  <link rel='stylesheet prefetch' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css'>
<link rel='stylesheet prefetch' href='https://code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css'>

      <link rel="stylesheet" href="style.css">

  
</head>

<body>
  <div id="main">
<div class="container-fluid">
<div class="row">
  <div class="col-xs-4 cell" id="c11">
  </div>
  <div class="col-xs-4 cell" id="c12">
  </div>
  <div class="col-xs-4 cell" id="c13">
  </div>
</div>
  <div class="row">
<div class="col-xs-4 cell" id="c21">
</div>
<div class="col-xs-4 cell" id="c22">
</div>
<div class="col-xs-4 cell" id="c23">
</div>
  </div>
  <div class="row">
<div class="col-xs-4 cell" id="c31">
</div>
<div class="col-xs-4 cell" id="c32">
</div>
<div class="col-xs-4 cell" id="c33">
</div>
  </div>
</div>
</div>

<div id="dialog-confirm" title="Tic Tac Toe | JavaScript">
  <p>Choose X or O</p>
</div>
  <script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
<script src='https://code.jquery.com/ui/1.11.4/jquery-ui.js'></script>

    <script src="function.js"></script>

</body>
</html>

<!DOCTYPE html>

<html >

<head>

<title>JavaScript Tic Tac Toe | WebDevTrick.com</title>

</head>

<body>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

<p>Choose X or O</p>

</div>

</body>

</html>

style.css

Now create a CSS file named “style.css” for decorating this program.

.cell{
  background-color: #0493ED;
  width: 200px;
  height: 200px;
  margin: 10px;
  font-size: 100px;
  color: white;
  text-align: center;
  line-height: 200px;
}
#main{
  min-height: 100%;
  min-height: 100vh;

  display: flex;
  align-items: center;
}

.cell{

background-color: #0493ED;

width: 200px;

height: 200px;

margin: 10px;

font-size: 100px;

color: white;

text-align: center;

line-height: 200px;

}

#main{

min-height: 100%;

min-height: 100vh;

display: flex;

align-items: center;

}

function.js

Final & main thing, Create a JS file named “function.js” for creating the whole AI program.

var isX = true;
var isValid = false;
var cells = [];
var player = 1;
var computer = 0;
var onMove = 1;
var result = "";
var intervalId;

$(document).ready(function(){


  $( "#dialog-confirm" ).dialog({
      resizable: false,
      height:140,
      modal: true,
      buttons: {
        "X": function() {
          isX = true;
          $( this ).dialog( "close" );
          startGame();
        },
        "O": function() {
          isX = false;
          $( this ).dialog( "close" );
          startGame();
        }
      }
    });
});

function startGame(){
  emptyCells();
  if(isX){
    player = 1;
    computer = 0;
  }else{
    player = 0;
    computer = 1;
  }

  var rnd = Math.round(Math.random());
    if(rnd === 1){
      onMove = player;
    }else{
      onMove = computer;
    }


  intervalId = setInterval(loop, 100);


}

function loop(){




	if(onMove === player){
      isValid = true;
    }else{
      computerMove();
      onMove = player;
    }


	$(".cell").on("click", function(){
  if(isValid){

    var sign = player === 0 ? "O" : "X";

    var i = $(this).attr("id")[1]-1;
    var j = $(this).attr("id")[2]-1;
    if(cells[i][j] === -1){
      cells[i][j] = player;
      $(this).html(sign);
      isValid = false;
	  if(!whoWon(cells)){
		 onMove = computer;
	  }
    }
  }
});



    var winner = whoWon(cells);
    if(winner){
	  if(winner === "computer"){
		  alert("You Lost, Better Luck Next Time");
	  }else{
		alert("Congratulation!! You Won");
      }
	  result = winner;
    }
    else if(isTableFull(cells)){
     result = "Draw";
      alert("Match Is "+ result);
    }
    if(result !== ""){
	  clearInterval(intervalId);
	  result = "";
	  cells = [];
	  clearTable();
	  startGame();
    }
}


function isTableFull(cells){
  for(var i in cells){
    for(var j in cells[i]){
      if(cells[i][j] === -1){
        return false;
      }
    }
    }
  return true;
}

function whoWon(cells){
  for(var i in cells){
    if(cells[i][0] !== -1 &&
       cells[i][1] !== -1 &&
       cells[i][2] !== -1 &&
       cells[i][0] === cells[i][1] && cells[i][0] === cells[i][2]){
      if(cells[i][0] === player){
        return "player";
      }
      else{
        return "computer";
      }
    }
    }
  for(var i in cells){
    if(cells[0][i] !== -1 &&
       cells[1][i] !== -1 &&
       cells[2][i] !== -1 &&
       cells[0][i] === cells[1][i] && cells[0][i] === cells[2][i]){
      if(cells[0][i] === player){
        return "player";
      }
      else{
        return "computer";
      }
    }
    }

  if((cells[0][0] !== -1 &&
      cells[1][1] !== -1 &&
      cells[2][2] !== -1 &&
      cells[0][0] === cells[1][1] &&
    cells[0][0] === cells[2][2]) ||
    (cells[0][2] !== -1 &&
     cells[1][1] !== -1 &&
     cells[2][0] !== -1 &&
    cells[0][2] === cells[1][1] &&
    cells[0][2] === cells[2][0])){
    if(cells[1][1] === player){
        return "player";
      }
      else{
        return "computer";
      }
  }

  return false;
}



function computerMove(){
  var arr = freeCells();
  var arr2 = bestMove();
  var sign = computer === 0 ? "O" : "X";
  var x = Math.round(Math.random()*arr.length);

  if(arr2.length >= 1){
	  var i = arr2[0];
	  var j = arr2[1];
  }else if(arr.length >= 1){
	  var i = arr[x][0];
	  var j = arr[x][1];
  }
  if((arr.length >= 1 || arr2.length >= 1) && cells[i][j] === -1){
    var a = parseInt(i) + 1;
    var b = parseInt(j) + 1;
    new Promise(function(resolve, reject){
      $("#c"+a+b).html(sign);
      resolve();
    }).then(function(){
       cells[i++][j++] = computer; })
	  return 0;
	}

}

function freeCells(){
	var arr = [];
	for(var i in cells){
		for(var j in cells[i]){
			if(cells[i][j] === -1){
				arr.push([i,j]);
			}
		}
	}
	return arr;
}

function bestMove(){
	var computerInLine = 0;
	var playerInLine = 0;
	var a = 0;
	var maybe = null;
	//check rows
	for(var i in cells){
		for(var j in cells[i]){
			if(cells[i][j] !== -1){
				if(cells[i][j] === computer){
					computerInLine++;
				}else{
					playerInLine++;
				}
			}else{
				a = j;
			}
		}
		if(computerInLine === 2 && a !== 0){
			return [i, a];
		}else if(playerInLine === 2 && a !== 0){
			maybe = [i, a];
		}
		a = 0;
		computerInLine = 0;
		playerInLine = 0;
	}

	//check columns

	for(var j in cells){
		for(var i in cells[i]){
			if(cells[i][j] !== -1){
				if(cells[i][j] === computer){
					computerInLine++;
				}else{
					playerInLine++;
				}
			}else{
				a = i;
			}
		}
		if(computerInLine === 2 && a !== 0){
			return [a, j];
		}else if(playerInLine === 2 && a !== 0){
			maybe = [a, j];
		}
		a = 0;
		computerInLine = 0;
		playerInLine = 0;
	}

	//check diagonals
	var h = 0;
	a = -1;
	var b = -1;
	playerInLine = 0;
	computerInLine = 0;
	for(var k = 0; k < 3; k++){
		if(cells[k][h] !== -1){
			if(cells[k][h] === computer){
					computerInLine++;
				}else{
					playerInLine++;
				}
		}else{
			a = k;
			b = h;
		}

		if(computerInLine === 2 && a !== -1 && b !== -1){
			return [a, b];
		}else if(playerInLine === 2 && a !== -1 && b != -1){
			maybe = [a, b];
		}

		h++;
	}

	h = 0;
	a = -1;
	b = -1;
	playerInLine = 0;
	computerInLine = 0;

	for(var k = 2; k >= 0; k--){
		if(cells[k][h] !== -1){
			if(cells[k][h] === computer){
					computerInLine++;
				}else{
					playerInLine++;
				}
		}else{
			a = k;
			b = h;
		}

		if(computerInLine === 2 && a !== -1 && b !== -1){
			return [a, b];
		}else if(playerInLine === 2 && a !== -1 && b != -1){
			maybe = [a, b];
		}

		h++;
	}



	if(maybe !== null) return maybe;

	return [];
}

function clearTable(){
	for(var a = 1; a<= 3; a++){
		for(var b = 1; b<=3; b++){
			$("#c"+a+b).html("");
		}
	}
}


function emptyCells(){
  for(var a = 0; a < 3; a++){
    cells.push([-1,-1,-1]);
  }
}

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var isX = true;

var isValid = false;

var cells = [];

var player = 1;

var computer = 0;

var onMove = 1;

var result = "";

var intervalId;

$(document).ready(function(){

$( "#dialog-confirm" ).dialog({

resizable: false,

height:140,

modal: true,

buttons: {

"X": function() {

isX = true;

$( this ).dialog( "close" );

startGame();

"O": function() {

isX = false;

$( this ).dialog( "close" );

startGame();

}

});

function startGame(){

emptyCells();

if(isX){

player = 1;

computer = 0;

}else{

player = 0;

computer = 1;

}

var rnd = Math.round(Math.random());

if(rnd === 1){

onMove = player;

}else{

onMove = computer;

}

intervalId = setInterval(loop, 100);

}

function loop(){

if(onMove === player){

isValid = true;

}else{

computerMove();

onMove = player;

}

$(".cell").on("click", function(){

if(isValid){

var sign = player === 0 ? "O" : "X";

var i = $(this).attr("id")[1]-1;

var j = $(this).attr("id")[2]-1;

if(cells[i][j] === -1){

cells[i][j] = player;

$(this).html(sign);

isValid = false;

if(!whoWon(cells)){

onMove = computer;

}

});

var winner = whoWon(cells);

if(winner){

if(winner === "computer"){

alert("You Lost, Better Luck Next Time");

}else{

alert("Congratulation!! You Won");

}

result = winner;

}

else if(isTableFull(cells)){

result = "Draw";

alert("Match Is "+ result);

}

if(result !== ""){

clearInterval(intervalId);

result = "";

cells = [];

clearTable();

startGame();

}

function isTableFull(cells){

for(var i in cells){

for(var j in cells[i]){

if(cells[i][j] === -1){

return false;

}

return true;

}

function whoWon(cells){

for(var i in cells){

if(cells[i][0] !== -1 &&

cells[i][1] !== -1 &&

cells[i][2] !== -1 &&

cells[i][0] === cells[i][1] && cells[i][0] === cells[i][2]){

if(cells[i][0] === player){

return "player";

}

else{

return "computer";

}

for(var i in cells){

if(cells[0][i] !== -1 &&

cells[1][i] !== -1 &&

cells[2][i] !== -1 &&

cells[0][i] === cells[1][i] && cells[0][i] === cells[2][i]){

if(cells[0][i] === player){

return "player";

}

else{

return "computer";

}

if((cells[0][0] !== -1 &&

cells[1][1] !== -1 &&

cells[2][2] !== -1 &&

cells[0][0] === cells[1][1] &&

cells[0][0] === cells[2][2]) ||

(cells[0][2] !== -1 &&

cells[1][1] !== -1 &&

cells[2][0] !== -1 &&

cells[0][2] === cells[1][1] &&

cells[0][2] === cells[2][0])){

if(cells[1][1] === player){

return "player";

}

else{

return "computer";

}

return false;

}

function computerMove(){

var arr = freeCells();

var arr2 = bestMove();

var sign = computer === 0 ? "O" : "X";

var x = Math.round(Math.random()*arr.length);

if(arr2.length >= 1){

var i = arr2[0];

var j = arr2[1];

}else if(arr.length >= 1){

var i = arr[x][0];

var j = arr[x][1];

}

if((arr.length >= 1 || arr2.length >= 1) && cells[i][j] === -1){

var a = parseInt(i) + 1;

var b = parseInt(j) + 1;

new Promise(function(resolve, reject){

$("#c"+a+b).html(sign);

resolve();

}).then(function(){

cells[i++][j++] = computer; })

return 0;

}

function freeCells(){

var arr = [];

for(var i in cells){

for(var j in cells[i]){

if(cells[i][j] === -1){

arr.push([i,j]);

}

return arr;

}

function bestMove(){

var computerInLine = 0;

var playerInLine = 0;

var a = 0;

var maybe = null;

//check rows

for(var i in cells){

for(var j in cells[i]){

if(cells[i][j] !== -1){

if(cells[i][j] === computer){

computerInLine++;

}else{

playerInLine++;

}

}else{

a = j;

}

if(computerInLine === 2 && a !== 0){

return [i, a];

}else if(playerInLine === 2 && a !== 0){

maybe = [i, a];

}

a = 0;

computerInLine = 0;

playerInLine = 0;

}

//check columns

for(var j in cells){

for(var i in cells[i]){

if(cells[i][j] !== -1){

if(cells[i][j] === computer){

computerInLine++;

}else{

playerInLine++;

}

}else{

a = i;

}

if(computerInLine === 2 && a !== 0){

return [a, j];

}else if(playerInLine === 2 && a !== 0){

maybe = [a, j];

}

a = 0;

computerInLine = 0;

playerInLine = 0;

}

//check diagonals

var h = 0;

a = -1;

var b = -1;

playerInLine = 0;

computerInLine = 0;

for(var k = 0; k < 3; k++){

if(cells[k][h] !== -1){

if(cells[k][h] === computer){

computerInLine++;

}else{

playerInLine++;

}

}else{

a = k;

b = h;

}

if(computerInLine === 2 && a !== -1 && b !== -1){

return [a, b];

}else if(playerInLine === 2 && a !== -1 && b != -1){

maybe = [a, b];

}

h++;

}

h = 0;

a = -1;

b = -1;

playerInLine = 0;

computerInLine = 0;

for(var k = 2; k >= 0; k--){

if(cells[k][h] !== -1){

if(cells[k][h] === computer){

computerInLine++;

}else{

playerInLine++;

}

}else{

a = k;

b = h;

}

if(computerInLine === 2 && a !== -1 && b !== -1){

return [a, b];

}else if(playerInLine === 2 && a !== -1 && b != -1){

maybe = [a, b];

}

h++;

}

if(maybe !== null) return maybe;

return [];

}

function clearTable(){

for(var a = 1; a<= 3; a++){

for(var b = 1; b<=3; b++){

$("#c"+a+b).html("");

}

function emptyCells(){

for(var a = 0; a < 3; a++){

cells.push([-1,-1,-1]);

}

That’s It, you have successfully created tic tac toe game in javascript programming. If you have any doubt or want to ask something comment down below.
Thanks For Visiting, Keep Visiting.

5 COMMENTS

Vatsal Bhakodia July 1, 2019 At 4:15 pm

It is not working.

Reply
- shaan July 1, 2019 At 4:47 pm
  
  Bro it’s absolutely working I think you are doing something wrong to create files.
  
  Reply
Holger September 22, 2019 At 11:07 pm

Works lik a breeze, thanks a lot!!!

Reply
joy May 28, 2020 At 11:27 am

works absolutely fine bro

Reply
Pooja Katakam June 24, 2020 At 2:01 pm

even when the match is draw, at some cases it is displaying it like the player has lost..

Reply