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function GameOfLife () {
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this.init = function (turns,width,height) {
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this.board = new Array(height);
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for (var x = 0; x < height; x++) {
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this.board[x] = new Array(width);
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for (var y = 0; y < width; y++) {
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this.board[x][y] = Math.round(Math.random());
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}
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}
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this.turns = turns;
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}
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this.nextGen = function() {
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this.boardNext = new Array(this.board.length);
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for (var i = 0; i < this.board.length; i++) {
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this.boardNext[i] = new Array(this.board[i].length);
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}
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for (var x = 0; x < this.board.length; x++) {
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for (var y = 0; y < this.board[x].length; y++) {
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var n = 0;
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for (var dx = -1; dx <= 1; dx++) {
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for (var dy = -1; dy <= 1; dy++) {
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if ( dx == 0 && dy == 0){}
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else if (typeof this.board[x+dx] !== 'undefined'
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&& typeof this.board[x+dx][y+dy] !== 'undefined'
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&& this.board[x+dx][y+dy]) {
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n++;
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}
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}
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}
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var c = this.board[x][y];
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switch (n) {
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case 0:
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case 1:
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c = 0;
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break;
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case 2:
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break;
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case 3:
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c = 1;
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break;
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default:
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c = 0;
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}
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this.boardNext[x][y] = c;
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}
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}
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this.board = this.boardNext.slice();
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}
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this.print = function() {
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for (var x = 0; x < this.board.length; x++) {
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var l = "";
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for (var y = 0; y < this.board[x].length; y++) {
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if (this.board[x][y])
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l += "X";
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else
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l += " ";
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}
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print(l);
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}
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}
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this.start = function() {
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for (var t = 0; t < this.turns; t++) {
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print("---\nTurn "+(t+1));
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this.print();
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this.nextGen()
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}
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}
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}
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var game = new GameOfLife();
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print("---\n3x3 Blinker over three turns.");
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game.init(3);
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game.board = [
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[0,0,0],
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[1,1,1],
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[0,0,0]];
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game.start();
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print("---\n10x6 Glider over five turns.");
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game.init(5);
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game.board = [
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[0,0,0,0,0,0,0,0,0,0],
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[0,0,1,0,0,0,0,0,0,0],
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[0,0,0,1,0,0,0,0,0,0],
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[0,1,1,1,0,0,0,0,0,0],
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[0,0,0,0,0,0,0,0,0,0],
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[0,0,0,0,0,0,0,0,0,0]];
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game.start();
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print("---\nRandom 5x10");
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game.init(5,5,10);
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game.start();
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151
Task/Conways-Game-of-Life/JavaScript/conways-game-of-life-2.js
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151
Task/Conways-Game-of-Life/JavaScript/conways-game-of-life-2.js
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<html>
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<head>
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<title></title>
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<script type="text/javascript">
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function GameOfLife () {
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this.init = function (turns,width,height) {
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this.board = new Array(height);
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for (var x = 0; x < height; x++) {
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this.board[x] = new Array(width);
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for (var y = 0; y < width; y++) {
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this.board[x][y] = Math.round(Math.random());
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}
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}
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this.turns = turns;
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}
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this.nextGen = function() {
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this.boardNext = new Array(this.board.length);
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for (var i = 0; i < this.board.length; i++) {
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this.boardNext[i] = new Array(this.board[i].length);
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}
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for (var x = 0; x < this.board.length; x++) {
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for (var y = 0; y < this.board[x].length; y++) {
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var n = 0;
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for (var dx = -1; dx <= 1; dx++) {
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for (var dy = -1; dy <= 1; dy++) {
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if ( dx == 0 && dy == 0){}
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else if (typeof this.board[x+dx] !== 'undefined'
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&& typeof this.board[x+dx][y+dy] !== 'undefined'
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&& this.board[x+dx][y+dy]) {
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n++;
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}
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}
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}
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var c = this.board[x][y];
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switch (n) {
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case 0:
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case 1:
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c = 0;
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break;
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case 2:
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break;
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case 3:
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c = 1;
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break;
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default:
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c = 0;
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}
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this.boardNext[x][y] = c;
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}
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}
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this.board = this.boardNext.slice();
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}
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this.print = function(ctx,w,h) {
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if (!w)
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w = 8;
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if (!h)
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h = 8;
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for (var x = 0; x < this.board.length; x++) {
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var l = "";
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for (var y = 0; y < this.board[x].length; y++) {
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if (this.board[x][y])
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// x and y reversed to draw matrix like it looks in source
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// rather than the "actual" positions
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ctx.fillStyle = "orange";
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else
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ctx.fillStyle = "black";
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ctx.fillRect(y*h,x*w,h,w);
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}
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}
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}
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this.start = function(ctx,w,h) {
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for (var t = 0; t < this.turns; t++) {
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this.print(ctx,w,h);
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this.nextGen()
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}
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}
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}
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function init() {
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// Change document title and text under canvas
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document.title = "Conway's Game of Life";
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// Setup game boards for Conway's Game of Life
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var blinker = new GameOfLife();
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blinker.board = [
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[0,1,0],
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[0,1,0],
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[0,1,0]];
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var glider = new GameOfLife();
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glider.board = [
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[0,0,0,0,0,0],
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[0,0,1,0,0,0],
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[0,0,0,1,0,0],
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[0,1,1,1,0,0],
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[0,0,0,0,0,0],
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[0,0,0,0,0,0]];
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var random = new GameOfLife();
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random.init(null,8,8);
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// Get canvas contexts or return 1
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blinker.canvas = document.getElementById('blinker');
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glider.canvas = document.getElementById('glider');
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random.canvas = document.getElementById('random');
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if (blinker.canvas.getContext && glider.canvas.getContext && random.canvas.getContext) {
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blinker.ctx = blinker.canvas.getContext('2d');
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glider.ctx = glider.canvas.getContext('2d');
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random.ctx = random.canvas.getContext('2d');
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} else {
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return 1;
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}
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// Run main() at set interval
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setInterval(function(){run(glider,glider.ctx,25,25)},250);
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setInterval(function(){run(blinker,blinker.ctx,25,25)},250);
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setInterval(function(){run(random,random.ctx,25,25)},250);
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return 0;
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}
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function run(game,ctx,w,h) {
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game.print(ctx,w,h);
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game.nextGen()
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return 0;
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}
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</script>
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</head>
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<body onLoad="init();">
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3x3 Blinker<br>
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<canvas id="blinker" width="75" height="75">
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No canvas support found!
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</canvas><br><br>
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6x6 Glider<br>
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<canvas id="glider" width="150" height="150">
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No canvas support found!
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</canvas><br><br>
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8x8 Random<br>
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<canvas id="random" width="200" height="200">
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No canvas support found!
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</canvas><br>
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</body>
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</html>
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const _ = require('lodash');
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///////////////////
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// LODASH IMPORT //
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///////////////////
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// import all lodash functions to the main namespace, but isNaN not to cause conflicts
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_.each(_.keys(_), k => global[k === 'isNaN' ? '_isNaN' : k] = _[k]);
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///////////////
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// FUNCTIONS //
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///////////////
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const WORLD_WIDTH = 3,
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WORLD_HEIGHT = 3,
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displayWorld = (world) => console.log(map(world, x => x.join(' ')).join('\n') + '\n'),
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aliveNeighbours = (world, x, y) => chain(range(-1, 2))
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.reduce((acc, i) => acc.concat(map(range(-1, 2), ii => [i, ii])), [])
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.reject(partial(isEqual, [0, 0]))
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.map(i => {
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try {
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return world[x + i[0]][y + i[1]];
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} catch (err) {
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return null;
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}
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})
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.compact()
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.value()
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.length,
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isAlive = (cell, numAliveNeighbours) => (cell === 1 && inRange(numAliveNeighbours, 2, 4)) || (cell === 0 && numAliveNeighbours === 3) ? 1 : 0,
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updateWorld = (world) => map(world, (row, rowidx) => map(row, (cell, colidx) => isAlive(cell, aliveNeighbours(world, rowidx, colidx))));
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// let world = map(range(WORLD_WIDTH), partial(ary(map, 2), range(WORLD_HEIGHT), partial(random, 0, 1, false)));
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let world = [[0, 0, 0], [1, 1, 1], [0, 0, 0]];
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setInterval(() => {
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world = updateWorld(world)
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displayWorld(world);
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}, 1000);
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const alive = 1;
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const dead = 0;
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const conwaysGameOfLife = (game) => {
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const newGame = []
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for (let y = 0; y < game.length; y += 1) {
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const newRow = []
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for (let x = 0; x < game[y].length; x += 1) {
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const cell = game[y][x];
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const prevX = x > 0 ? x - 1 : x;
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const nextX = x < game[y].length - 1 ? x + 2 : x + 1;
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const counter =
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(game[y - 1] ? game[y - 1].slice(prevX, nextX).reduce((acc, v) => acc + v) : 0) +
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(game[y][x - 1] || 0) + (game[y][x + 1] || 0) +
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(game[y + 1] ? game[y + 1].slice(prevX, nextX).reduce((acc, v) => acc + v) : 0)
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cell === alive
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? counter > 1 && counter <= 3
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? newRow.push(alive)
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: newRow.push(dead)
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: counter === 3
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? newRow.push(alive)
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: newRow.push(dead)
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}
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newGame.push(newRow)
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}
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return newGame
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}
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const generateGame = (height, width) => {
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return Array.from({ length: height }, (v, k) => (
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Array.from({ length: width}, (v, k) => {
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return (Math.random() * 100 | 0) < 50 ? dead : alive
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})
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))
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}
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const output = (game) =>{
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process.stdout.write('\033c');
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let screen = '';
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for (let i = 0; i < game.length; i += 1) {
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screen += game[i].join('')
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screen += '\n'
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}
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console.log(screen)
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}
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const setup = ((game) => {
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return () => {
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setInterval(() => {
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output(game)
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const newGame = conwaysGameOfLife(game)
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game = newGame
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}, 1000)
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}
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})
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// for random game
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// const game = generateGame(10, 10)
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// glider test
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const game = [
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[0,0,0,0,0,0,0,0,0,0],
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[0,0,1,0,0,0,0,0,0,0],
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[0,0,0,1,0,0,0,0,0,0],
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[0,1,1,1,0,0,0,0,0,0],
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[0,0,0,0,0,0,0,0,0,0],
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[0,0,0,0,0,0,0,0,0,0]
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];
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const run = setup(game);
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run()
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