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import { getInput } from "./utils.js";
let game = {
player1: {
symbol: "X",
name: undefined,
},
player2: {
symbol: "O",
name: undefined,
},
turn: "player1",
state: "setup",
board: [" ", " ", " ", " ", " ", " ", " ", " ", " "],
};
const winningPositions = [
[0, 1, 2],
[0, 3, 6],
[0, 4, 8],
[1, 4, 7],
[2, 5, 8],
[2, 4, 6],
[3, 4, 5],
[6, 7, 8],
];
function checkForWin() {
let winner = "";
for (let position of winningPositions) {
if (
// ignore field empty
game.board[position[0]] != " " &&
game.board[position[1]] != " " &&
game.board[position[2]] != " " &&
// check if three in a row
game.board[position[0]] == game.board[position[1]] &&
game.board[position[1]] == game.board[position[2]]
) {
winner =
game.player1.symbol == game.board[position[0]]
? game.player1.name
: game.player2.name;
}
}
return winner;
}
async function gameLoop() {
while (game.state == "running") {
outputBoard();
let winner = checkForWin();
if (winner) {
console.log(`${winner} has won!`);
game.state = "finish";
return;
}
await questionLoop();
}
async function questionLoop() {
let playerMove = await getInput(
`Where would you want to place (${game[game.turn].name})?: `,
);
while (game.board[playerMove - 1] != " ") {
console.log("\nThere is already a Symbol. Try again.");
playerMove = await getInput(
`Where would you want to place (${game[game.turn].name})?: `,
);
}
if (game.turn == "player2") {
move(game.player2, playerMove);
game.turn = "player1";
} else {
move(game.player1, playerMove);
game.turn = "player2";
}
}
}
async function setupGame() {
console.log("Let's Start a Game of Tic Tac Toe! \n");
game.player1.name = await getInput("Name of Player 1: ");
game.player2.name = await getInput("Name of Player 2: ");
game.state = "running";
}
function move(player, position) {
game.board[position - 1] = player.symbol;
}
export default async function start() {
if (game.state == "setup") {
await setupGame();
}
if (game.state == "running") {
await gameLoop();
}
if (game.state == "finish") {
process.exit();
}
}
function outputBoard() {
console.log("\n");
console.log(`${game.board[0]} | ${game.board[1]} | ${game.board[2]}`);
console.log("---------");
console.log(`${game.board[3]} | ${game.board[4]} | ${game.board[5]}`);
console.log("---------");
console.log(`${game.board[6]} | ${game.board[7]} | ${game.board[8]}`);
console.log("\n");
}
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