inital commitHEADmaster

7 files changed, 183 insertions, 0 deletions

diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+MIT License
+
+Copyright (c) 2026 Leo Goetz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
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+++ b/README.md
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+Tic Tac Toe
+---
+
+Like the name says. It is a little Tic Tac Toe game you can play in your
+terminal via node.js
+
+Just clone the repo, go in its directory and type:
+```bash
+npm run start
+// or
+node index.js
+```
+
+Enjoy :)
diff --git a/git-daemon-export-ok b/git-daemon-export-ok
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+++ b/git-daemon-export-ok
diff --git a/index.js b/index.js
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+++ b/index.js
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+import start from "./src/game.js";
+
+await start();
diff --git a/package.json b/package.json
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+++ b/package.json
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+{
+  "name": "tic-tac-toe",
+  "version": "1.0.0",
+  "description": "a terminal tic tac toe game",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js"
+  },
+  "keywords": [],
+  "author": "Leo Goetz",
+  "license": "MIT",
+  "type": "module"
+}
diff --git a/src/game.js b/src/game.js
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+++ b/src/game.js
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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");
+}
diff --git a/src/utils.js b/src/utils.js
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+++ b/src/utils.js
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+import readline from "readline";
+
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+
+export function getInput(question) {
+  return new Promise((resolve) => {
+    rl.question(question, (userInput) => {
+      resolve(userInput);
+    });
+  });
+}