Tic-Tac-Toe Game using HTML CSS Javascript

Tic-Tac-Toe Game in Javascript:

Tic-Tac-Toe game is a two players game. There will be a board of 3×3 table cells and 2 symbols in this game, one for each player. Both players can choose the symbol of their choice. Then they will mark the sign inside of a box on the board. One who got their symbol marked in a sequence of three may be vertical, horizontal, or diagonal.

The main logic of the Tic-Tac-Toe game is that the player will have won the match, and the player will lose the game if he doesn’t get his symbol in a sequence of three. If both of the players do not get their symbols in a line of three, the match will be tied or drawn.

File: index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="style.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css"/>
</head>
<body>
  <div class="select-box">
    <header><center>Tic Tac Toe Game</center></header>
    <div class="content">
      <div class="title"><center>Choose Player-X/O</center></div>
      <div class="options">
        <button class="playerX">Player-X</button>
        <button class="playerO">Player-O</button>
      </div>
      
    </div>
  </div> 
  <div class="play-board">
    <div class="details">
      <div class="players">
        <span class="Xturn">X's Turn</span>
        <span class="Oturn">O's Turn</span>
        <div class="slider"></div>
      </div>
    </div>
    <div class="play-area">
      <section>
        <span class="box1"></span>
        <span class="box2"></span>
        <span class="box3"></span>
      </section>
      <section>
        <span class="box4"></span>
        <span class="box5"></span>
        <span class="box6"></span>
      </section>
      <section>
        <span class="box7"></span>
        <span class="box8"></span>
        <span class="box9"></span>
      </section>
    </div>
  </div>
<div class="result-box">
    <div class="won-text"></div>
   <div class="btn">
<button>Play Again</button>
<button onclick="javascript:window.close()">Exit</button>
</div>
  </div>
<script src="script.js"></script>
</body>
</html>

File: style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:[email protected];300;400;500;600;700&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
::selection{
  color: #fff;
  background:#004488;
}
body{
  background:#004488;
}
.select-box, .play-board, .result-box{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
}
.select-box{
  background: #fff;
  padding: 20px 25px 25px;
  border-radius: 5px;
  max-width: 400px;
  width: 100%;
}
.select-box.hide{
  opacity: 0;
  pointer-events: none;
}
.select-box header{
  font-size: 30px;
  font-weight: 600;
  padding-bottom: 10px;
  border-bottom: 1px solid lightgrey;
}
.select-box .title{
  font-size: 22px;
  font-weight: 500;
  margin: 20px 0;
}
.select-box .options{
  display: flex;
  width: 100%;
}
.options button{
  width: 100%;
  font-size: 20px;
  font-weight: 500;
  padding: 10px 0;
  border: none;
  background: #004488;
  border-radius: 5px;
  color: #fff;
  outline: none;
  cursor: pointer;
  transition: all 0.3s ease;
}
.options button:hover,
.btn button:hover{
  transform: scale(0.96);
}
.options button.playerX{
  margin-right: 5px;
}
.options button.playerO{
  margin-left: 5px;
}
.select-box .credit{
  text-align: center;
  margin-top: 20px;
  font-size: 18px;
  font-weight: 500;
}
.select-box .credit a{
  color: #56baed;
  text-decoration: none;
}
.select-box .credit a:hover{
  text-decoration: underline;
}

.play-board{
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.9);
}
.play-board.show{
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}
.play-board .details{
  padding: 7px;
  border-radius: 5px;
  background: #fff;
}
.play-board .players{
  width: 100%;
  display: flex;
  position: relative;
  justify-content: space-between;
}
.players span{
  position: relative;
  z-index: 2;
  color: #004488;
  font-size: 20px;
  font-weight: 500;
  padding: 10px 0;
  width: 100%;
  text-align: center;
  cursor: default;
  user-select: none;
  transition: all 0.3 ease;
}
.players.active span:first-child{
  color: #fff;
}
.players.active span:last-child{
  color: #004488;
}
.players span:first-child{
  color: #fff;
}
.players .slider{
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  background: #004488;
  border-radius: 5px;
  transition: all 0.3s ease;
}
.players.active .slider{
  left: 50%;
}
.players.active span:first-child{
  color: #004488;
}
.players.active span:nth-child(2){
  color: #fff;
}
.players.active .slider{
  left: 50%;
}
.play-area{
  margin-top: 20px;
}
.play-area section{
  display: flex;
  margin-bottom: 1px;
}
.play-area section span{
  display: block;
  height: 90px;
  width: 90px;
  margin: 2px;
  color: #004488;
  font-size: 40px;
  line-height: 80px;
  text-align: center;
  border-radius: 5px;
  background: #fff;
}

.result-box{
  padding: 25px 20px;
  border-radius: 5px;
  max-width: 400px;
  width: 100%;
  opacity: 0;
  text-align: center;
  background: #fff;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.9);
}
.result-box.show{
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}
.result-box .won-text{
  font-size: 30px;
  font-weight: 500;
  display: flex;
  justify-content: center;
}
.result-box .won-text p{
  font-weight: 600;
  margin: 0 5px;
}
.result-box .btn{
  width: 100%;
  margin-top: 25px;
  display: flex;
  justify-content: center;
}
.btn button{
  font-size: 18px;
  font-weight: 500;
  padding: 8px 20px;
  border: none;
  background: #004488;
  border-radius: 5px;
  color: #fff;
  outline: none;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-right: 25px;
}

File: script.js

const selectBox = document.querySelector(".select-box"),
selectBtnX = selectBox.querySelector(".options .playerX"),
selectBtnO = selectBox.querySelector(".options .playerO"),
playBoard = document.querySelector(".play-board"),
players = document.querySelector(".players"),
allBox = document.querySelectorAll("section span"),
resultBox = document.querySelector(".result-box"),
wonText = resultBox.querySelector(".won-text"),
replayBtn = resultBox.querySelector("button");

window.onload = ()=>{ 
    for (let i = 0; i < allBox.length; i++) { 
       allBox[i].setAttribute("onclick", "clickedBox(this)");
    }
}

selectBtnX.onclick = ()=>{
    selectBox.classList.add("hide"); 
    playBoard.classList.add("show"); 
}

selectBtnO.onclick = ()=>{ 
    selectBox.classList.add("hide"); 
    playBoard.classList.add("show"); 
    players.setAttribute("class", "players active player"); 
}

let playerXIcon = "fas fa-times"; 
let playerOIcon = "far fa-circle"; 
let playerSign = "X"; 
let runBot = true; 


function clickedBox(element){
    if(players.classList.contains("player")){
        playerSign = "O"; 
        element.innerHTML = `<i class="${playerOIcon}"></i>`; 
        players.classList.remove("active"); 
        element.setAttribute("id", playerSign); 
    }else{
        element.innerHTML = `<i class="${playerXIcon}"></i>`; 
        element.setAttribute("id", playerSign); 
        players.classList.add("active"); 
    }
    selectWinner(); 
    element.style.pointerEvents = "none"; 
    playBoard.style.pointerEvents = "none"; 
    let randomTimeDelay = ((Math.random() * 1000) + 200).toFixed(); 
    setTimeout(()=>{
        bot(runBot); 
    }, randomTimeDelay); 
}


function bot(){
    let array = []; 
    if(runBot){ 
        playerSign = "O"; 
        for (let i = 0; i < allBox.length; i++) {
            if(allBox[i].childElementCount == 0){ 
                array.push(i); 
            }
        }
        let randomBox = array[Math.floor(Math.random() * array.length)]; 
        if(array.length > 0){ 
            if(players.classList.contains("player")){ 
                playerSign = "X"; 
                allBox[randomBox].innerHTML = `<i class="${playerXIcon}"></i>`; 
                allBox[randomBox].setAttribute("id", playerSign); 
                players.classList.add("active"); 
            }else{
                allBox[randomBox].innerHTML = `<i class="${playerOIcon}"></i>`; 
                players.classList.remove("active"); 
                allBox[randomBox].setAttribute("id", playerSign); 
            }
            selectWinner(); 
        }
        allBox[randomBox].style.pointerEvents = "none"; 
        playBoard.style.pointerEvents = "auto"; 
        playerSign = "X"; 
    }
}

function getIdVal(classname){
    return document.querySelector(".box" + classname).id; 
}
function checkIdSign(val1, val2, val3, sign){ 
    if(getIdVal(val1) == sign && getIdVal(val2) == sign && getIdVal(val3) == sign){
        return true;
    }
}
function selectWinner(){ 
    if(checkIdSign(1,2,3,playerSign) || checkIdSign(4,5,6, playerSign) || checkIdSign(7,8,9, playerSign) || checkIdSign(1,4,7, playerSign) || checkIdSign(2,5,8, playerSign) || checkIdSign(3,6,9, playerSign) || checkIdSign(1,5,9, playerSign) || checkIdSign(3,5,7, playerSign)){
        runBot = false; 
        bot(runBot); 
        setTimeout(()=>{ 
            resultBox.classList.add("show");
            playBoard.classList.remove("show");
        }, 700); 
        wonText.innerHTML = `Player <p>${playerSign}</p> won the game!`; 
    }
	else
	{ 
        if(getIdVal(1) != "" && getIdVal(2) != "" && getIdVal(3) != "" && getIdVal(4) != "" && getIdVal(5) != "" && getIdVal(6) != "" && getIdVal(7) != "" && getIdVal(8) != "" && getIdVal(9) != ""){
            runBot = false; 
            bot(runBot); 
            setTimeout(()=>{ 
                resultBox.classList.add("show");
                playBoard.classList.remove("show");
            }, 700); 
            wonText.textContent = "Match has been drawn!"; 
        }
    }
}

replayBtn.onclick = ()=>{
    window.location.reload(); 
}

Output-1:

Tic-Tac-Toe Game using HTML CSS Javascript

Output-2:

Tic-Tac-Toe Game using HTML CSS Javascript

Output-3:

Tic-Tac-Toe Game using HTML CSS Javascript

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