tictactoe-engine
v1.1.3
Published
You provide the moves and this module will handle the game logic.
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tictactoe-engine
You provide the moves and this module will handle the game logic.
Installation
NPM
$ npm install tictactoe-engine --saveRules
- There are 2 players 'x' and 'o'
- 'x' always goes first
Usage
ES6 Module
import { playRound } from 'tictactoe-engine';
playRound([[0, 0]])
// => { currentPlayer: 'x', isWinner: false }
playRound([[0, 0], [1, 1]])
// => { currentPlayer: 'o', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1]])
// => { currentPlayer: 'x', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1], [1, 0]])
// => { currentPlayer: 'o', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1], [1, 0], [0, 2]])
// => { currentPlayer: 'x', isWinner: true }Node
const { playRound } = require('tictactoe-engine');
playRound([[0, 0]])
// => { currentPlayer: 'x', isWinner: false }
playRound([[0, 0], [1, 1]])
// => { currentPlayer: 'o', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1]])
// => { currentPlayer: 'x', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1], [1, 0]])
// => { currentPlayer: 'o', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1], [1, 0], [0, 2]])
// => { currentPlayer: 'x', isWinner: true }Script Tag
<script src="node_modules/tictactoe-engine/dist/ticTacToeEngine.js"></script>
<script>
const { playRound } = window.ticTacToeEngine;
playRound([[0, 0]])
// => { currentPlayer: 'x', isWinner: false }
playRound([[0, 0], [1, 1]])
// => { currentPlayer: 'o', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1]])
// => { currentPlayer: 'x', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1], [1, 0]])
// => { currentPlayer: 'o', isWinner: false }
playRound([[0, 0], [1, 1], [0, 1], [1, 0], [0, 2]])
// => { currentPlayer: 'x', isWinner: true }
</script>Example of Using Logic to Build an HTML TicTacToe Game
Demo: https://samsamskies.github.io/tictactoe-engine/
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Tic Tac Toe</title>
<style>
body {
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
}
.row {
display: flex;
}
.cell {
width: 200px;
height: 200px;
border: 2px solid black;
font-size: 200px;
text-align: center;
line-height: 160px;
cursor: pointer;
}
</style>
</head>
<body>
<div class="board">
<div class="row" data-row="0">
<div class="cell" data-column="0"></div>
<div class="cell" data-column="1"></div>
<div class="cell" data-column="2"></div>
</div>
<div class="row" data-row="1">
<div class="cell" data-column="0"></div>
<div class="cell" data-column="1"></div>
<div class="cell" data-column="2"></div>
</div>
<div class="row" data-row="2">
<div class="cell" data-column="0"></div>
<div class="cell" data-column="1"></div>
<div class="cell" data-column="2"></div>
</div>
</div>
<script src="node_modules/tictactoe-engine/dist/ticTacToeEngine.js"></script>
<script>
const { playRound } = window.ticTacToeEngine;
startGame();
function startGame () {
let moves = [];
document.querySelector('.board').addEventListener('click', (e) => {
const move = convertCellToCoordinates(e.target);
if (checkIfMoveWasAlreadyMade(moves, move)) {
return;
}
moves.push(move);
const { currentPlayer, winner } = playRound(moves);
updateCellContents(e.target, currentPlayer);
if (winner === '') {
return;
}
// Give DOM time to update before showing
setTimeout(() => {
alert(`winner is ${winner}`);
window.location.reload();
}, 100);
});
}
function checkIfMoveWasAlreadyMade (moves, [moveX, moveY]) {
return moves.find(([x, y]) => moveX === x && moveY === y);
}
function convertCellToCoordinates (cellNode) {
const x = parseInt(cellNode.closest('.row').getAttribute('data-row'));
const y = parseInt(cellNode.getAttribute('data-column'));
return [x, y];
}
function updateCellContents (cellNode, currentPlayer) {
cellNode.innerHTML = currentPlayer;
}
</script>
</body>
</html>