RosettaCodeData/Task/Conways-Game-of-Life/JavaScript/conways-game-of-life-1.js
2026-02-01 16:33:20 -08:00

99 lines
2.4 KiB
JavaScript

function GameOfLife () {
this.init = function (turns,width,height) {
this.board = new Array(height);
for (var x = 0; x < height; x++) {
this.board[x] = new Array(width);
for (var y = 0; y < width; y++) {
this.board[x][y] = Math.round(Math.random());
}
}
this.turns = turns;
}
this.nextGen = function() {
this.boardNext = new Array(this.board.length);
for (var i = 0; i < this.board.length; i++) {
this.boardNext[i] = new Array(this.board[i].length);
}
for (var x = 0; x < this.board.length; x++) {
for (var y = 0; y < this.board[x].length; y++) {
var n = 0;
for (var dx = -1; dx <= 1; dx++) {
for (var dy = -1; dy <= 1; dy++) {
if ( dx == 0 && dy == 0){}
else if (typeof this.board[x+dx] !== 'undefined'
&& typeof this.board[x+dx][y+dy] !== 'undefined'
&& this.board[x+dx][y+dy]) {
n++;
}
}
}
var c = this.board[x][y];
switch (n) {
case 0:
case 1:
c = 0;
break;
case 2:
break;
case 3:
c = 1;
break;
default:
c = 0;
}
this.boardNext[x][y] = c;
}
}
this.board = this.boardNext.slice();
}
this.print = function() {
for (var x = 0; x < this.board.length; x++) {
var l = "";
for (var y = 0; y < this.board[x].length; y++) {
if (this.board[x][y])
l += "X";
else
l += " ";
}
print(l);
}
}
this.start = function() {
for (var t = 0; t < this.turns; t++) {
print("---\nTurn "+(t+1));
this.print();
this.nextGen()
}
}
}
var game = new GameOfLife();
print("---\n3x3 Blinker over three turns.");
game.init(3);
game.board = [
[0,0,0],
[1,1,1],
[0,0,0]];
game.start();
print("---\n10x6 Glider over five turns.");
game.init(5);
game.board = [
[0,0,0,0,0,0,0,0,0,0],
[0,0,1,0,0,0,0,0,0,0],
[0,0,0,1,0,0,0,0,0,0],
[0,1,1,1,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0]];
game.start();
print("---\nRandom 5x10");
game.init(5,5,10);
game.start();