git.cworth.org Git - lmno-server/blob - tictactoe.js

   1 const express = require("express");
   2 const Game = require("./game.js");
   3
   4 const router = express.Router();
   5
   6 class TicTacToe extends Game {
   7   constructor(id) {
   8     super(id);
   9     this.state = {
  10       moves: [],
  11       board: Array(9).fill(""),
  12       next_player: "X",
  13     };
  14   }
  15
  16   /* Returns Boolean indicating whether move was legal and added. */
  17   add_move(square) {
  18     /* Cannot move to an occupied square. */
  19     if (this.state.board[square])
  20       return false;
  21
  22     this.state.board[square] = this.state.next_player;
  23     this.state.moves.push(square);
  24
  25     if (this.state.next_player === "X")
  26       this.state.next_player = "O";
  27     else
  28       this.state.next_player = "X";
  29
  30     return true;
  31   }
  32 }
  33
  34 exports.router = router;
  35 exports.Game = TicTacToe;
  36
  37 TicTacToe.meta = {
  38   name: "Tic Tac Toe",
  39   identifier: "tictactoe"
  40 };