coderetreat.js

"use strict";

class Board {
  constructor() {
    this.width = 10;
    this.height = 12;
    this.grid = this._initializeToZeros();
    this.grid[2][1] = 1;
  }

  isAlive(coord) {
    return this.grid[coord.y][coord.x] === 1;
  }

  _initializeToZeros() {
    let r = [];

    for(let y = 0; y < this.height; y++) {
      r.push([]);

      for(let x = 0; x < this.width; x++) {
        r[y].push(0);
      }
    }

    return r;
  }
}

class Coord {
  constructor(x, y) {
    this.x = x;
    this.y = y;
  }
}

function blah() {
  let board = new Board(3,3,[
    new Coord(1,1)
  ]);
  let game = new Game(board);

  game.tick();
}

describe("Conway's game of life", function() {

  describe("Board", function() {
    beforeEach(function() {
      this.board = new Board();
    });

    it("has a height", function() {
      expect(this.board.height).toBe(12);
    });

    it("has a width", function() {
      expect(this.board.width).toBe(10);
    });

    describe("the initialState", function() {
      it("1,2 is alive", function() {
        expect(this.board.isAlive(new Coord(1,2))).toBe(true);
      });

      it("1,3 is not alive", function() {
        expect(this.board.isAlive(new Coord(1,3))).toBe(false);
      });
    });
  });

  describe("Game", function() {
    beforeEach(function() {
      this.board = new Board();
      this.game = new Game(board);
    });
  });
});

@SamNazar