let cols;

let rows;

let resolution = 20;

​

function make2DArray(cols, rows) {

  let arr = new Array(cols);

  for (let i = 0; i < arr.length; i++) {

    arr[i] = new Array(rows);

    for (let j = 0; j < arr.length; j++) {

      arr[i][j] = Math.floor(random(2));

    }

  }

  return arr;

}

​

function setup() {

  createCanvas(500, 500);

  cols = width / resolution;

  rows = height / resolution;

  grid = make2DArray(cols, rows);

  console.table(grid);

}

​

function draw() {

  background(0);

​

  for (let i = 0; i < rows; i++) {

    for (let j = 0; j < cols; j++) {

      let x = i * resolution;

      let y = j * resolution;

      if (grid[i][j] === 1) {

        fill(255);

        rect(x, y, resolution);

      }

    }

  }

​

  let next = make2DArray(cols, rows);

​

  for (let i = 0; i < rows; i++) {

    for (let j = 0; j < cols; j++) {

      let sum = 0;

      let neigbours = countNeigbors(grid, i, j);

    }

  }

​

  grid = next;

}

​

function countNeighbors(grid, x, y) {

  let sum = 0;

  for (let i = 0; i < rows; i++) {

    for (let j = 0; j < cols; j++) {

      sum += grid[i][j];

    }

  }

  sum -= grid[x][y];

  return sum;

}

​