Fixed GameOfLife post
This commit is contained in:
Marcus Noble
parent
fb863e2b37
commit
ad1e408718
249
src/pages/ConwaysGameOfLife.md
Normal file
249
src/pages/ConwaysGameOfLife.md
Normal file
@ -0,0 +1,249 @@
|
||||
---
|
||||
layout: page.html
|
||||
title: "Conways Game Of Life"
|
||||
---
|
||||
<style type="text/css">
|
||||
* {
|
||||
box-sizing:border;
|
||||
}
|
||||
body{
|
||||
text-align:center;
|
||||
}
|
||||
#gameBoard {
|
||||
margin: 0 auto;
|
||||
border:2px solid #ccc;
|
||||
line-height:10px;
|
||||
display:table;
|
||||
}
|
||||
|
||||
.cell {
|
||||
width:10px;
|
||||
height:10px;
|
||||
display:inline-block;
|
||||
border:1px solid #ccc;
|
||||
}
|
||||
|
||||
.row {
|
||||
display:block;
|
||||
margin:0;
|
||||
}
|
||||
</style>
|
||||
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
|
||||
<div id="gameBoard"></div>
|
||||
<p>
|
||||
Read my blog post regarding <a href="14-07-2014-conways-game-of-life/">Conway's Game of Life</a>
|
||||
</p>
|
||||
|
||||
<script type="text/javascript">
|
||||
(function(){
|
||||
var cells = [];
|
||||
var boardWidth = 20;
|
||||
var boardHeight = 20;
|
||||
var $board = $('#gameBoard');
|
||||
var intervalID;
|
||||
var gameOverBoard = [
|
||||
{x:2,y:4},
|
||||
{x:2,y:5},
|
||||
{x:2,y:6},
|
||||
{x:3,y:3},
|
||||
{x:4,y:3},
|
||||
{x:3,y:7},
|
||||
{x:4,y:7},
|
||||
{x:4,y:5},
|
||||
{x:5,y:5},
|
||||
{x:5,y:6},
|
||||
{x:7,y:4},
|
||||
{x:7,y:5},
|
||||
{x:7,y:6},
|
||||
{x:7,y:7},
|
||||
{x:8,y:3},
|
||||
{x:9,y:3},
|
||||
{x:8,y:5},
|
||||
{x:9,y:5},
|
||||
{x:10,y:4},
|
||||
{x:10,y:5},
|
||||
{x:10,y:6},
|
||||
{x:10,y:7},
|
||||
{x:12,y:4},
|
||||
{x:12,y:5},
|
||||
{x:12,y:6},
|
||||
{x:12,y:7},
|
||||
{x:13,y:3},
|
||||
{x:14,y:4},
|
||||
{x:15,y:3},
|
||||
{x:16,y:4},
|
||||
{x:16,y:5},
|
||||
{x:16,y:6},
|
||||
{x:16,y:7},
|
||||
{x:18,y:3},
|
||||
{x:18,y:4},
|
||||
{x:18,y:5},
|
||||
{x:18,y:6},
|
||||
{x:18,y:7},
|
||||
{x:19,y:3},
|
||||
{x:19,y:5},
|
||||
{x:19,y:7},
|
||||
{x:3,y:9},
|
||||
{x:4,y:9},
|
||||
{x:2,y:10},
|
||||
{x:2,y:11},
|
||||
{x:2,y:12},
|
||||
{x:3,y:13},
|
||||
{x:4,y:13},
|
||||
{x:5,y:10},
|
||||
{x:5,y:11},
|
||||
{x:5,y:12},
|
||||
{x:7,y:9},
|
||||
{x:7,y:10},
|
||||
{x:8,y:11},
|
||||
{x:8,y:12},
|
||||
{x:9,y:13},
|
||||
{x:10,y:12},
|
||||
{x:10,y:11},
|
||||
{x:11,y:10},
|
||||
{x:11,y:9},
|
||||
{x:13,y:9},
|
||||
{x:13,y:10},
|
||||
{x:13,y:11},
|
||||
{x:13,y:12},
|
||||
{x:13,y:13},
|
||||
{x:14,y:9},
|
||||
{x:14,y:11},
|
||||
{x:14,y:13},
|
||||
{x:16,y:9},
|
||||
{x:16,y:10},
|
||||
{x:16,y:11},
|
||||
{x:16,y:12},
|
||||
{x:16,y:13},
|
||||
{x:17,y:9},
|
||||
{x:17,y:11},
|
||||
{x:18,y:9},
|
||||
{x:18,y:11},
|
||||
{x:18,y:12},
|
||||
{x:19,y:10},
|
||||
{x:19,y:13}
|
||||
];
|
||||
|
||||
function init(){
|
||||
var cell = $('<div/>').addClass('cell');
|
||||
var row = $('<div/>').addClass('row');
|
||||
var currentRow, i, j, newCell;
|
||||
|
||||
$('#gameBoard').empty().on('click', function(){
|
||||
clearInterval(intervalID);
|
||||
init();
|
||||
});
|
||||
cells = [];
|
||||
|
||||
for(i=0;i<boardHeight;i++){
|
||||
currentRow = row.clone();
|
||||
$board.append(currentRow);
|
||||
for(j=0;j<boardHeight;j++){
|
||||
currentRow.append(cell.clone());
|
||||
}
|
||||
}
|
||||
|
||||
for(i=0;i<50;i++){
|
||||
newCell = {
|
||||
x: (Math.floor(Math.random() * (boardWidth - 1) + 1)),
|
||||
y: (Math.floor(Math.random() * (boardHeight - 1) + 1))
|
||||
};
|
||||
cells.push(newCell)
|
||||
}
|
||||
|
||||
render();
|
||||
|
||||
intervalID = setInterval(function(){
|
||||
tick();
|
||||
}, 1000);
|
||||
}
|
||||
|
||||
function render(){
|
||||
$board.find('.cell').css('background','white');
|
||||
for(var i=0; i<cells.length;i++){
|
||||
$($($('.row').get(cells[i].y-1)).find('.cell').get(cells[i].x-1)).css('background', 'black');
|
||||
}
|
||||
}
|
||||
|
||||
function tick(){
|
||||
var neighbourCount = 0;
|
||||
var nextIteration = [];
|
||||
var candidates = [];
|
||||
var neighbours, i, j,
|
||||
cellX, cellY,
|
||||
cellLength, neighbourLength, candidateLength;
|
||||
|
||||
// All cells are dead, lets restart
|
||||
if(cells.length === 0){
|
||||
clearInterval(intervalID);
|
||||
//Game over, restart in 5sec
|
||||
cells = gameOverBoard;
|
||||
render();
|
||||
setTimeout(function(){
|
||||
init();
|
||||
}, 5000);
|
||||
return;
|
||||
}
|
||||
|
||||
for(i=0, cellLength=cells.length; i<cellLength; i++){
|
||||
neighbourCount = countNeighbours(cells[i]);
|
||||
if(neighbourCount >= 2 && neighbourCount <= 3){
|
||||
nextIteration.push(cells[i]);
|
||||
}
|
||||
// For each cell that is alive, find its neighbours
|
||||
cellX = cells[i].x;
|
||||
cellY = cells[i].y;
|
||||
neighbours = [];
|
||||
neighbours.push({x:(cellX-1),y:(cellY-1)});
|
||||
neighbours.push({x:(cellX-1),y:cellY});
|
||||
neighbours.push({x:(cellX-1),y:(cellY+1)});
|
||||
neighbours.push({x:cellX,y:(cellY-1)});
|
||||
neighbours.push({x:cellX,y:(cellY+1)});
|
||||
neighbours.push({x:(cellX+1),y:(cellY-1)});
|
||||
neighbours.push({x:(cellX+1),y:cellY});
|
||||
neighbours.push({x:(cellX+1),y:(cellY+1)});
|
||||
for(j=0, neighbourLength=neighbours.length; j<neighbourLength; j++){
|
||||
// Keep the neighbour cells if they are dead
|
||||
// We don't want to keep multiple copies of the neighbour cell
|
||||
if(!isAlive(neighbours[j]) && candidates.filter(function(currentCell){
|
||||
return (currentCell.x === neighbours[j].x && currentCell.y == neighbours[j].y);
|
||||
}).length === 0) {
|
||||
candidates.push(neighbours[j]);
|
||||
}
|
||||
}
|
||||
}
|
||||
// Now we have a list of dead neighbours of at least 1 live neighbour (candidates)
|
||||
// Bring the cell to life if we find that each neighbour has 3 other live neighbouring cells
|
||||
for(i=0, candidateLength=candidates.length; i<candidateLength; i++){
|
||||
if(countNeighbours(candidates[i]) === 3){
|
||||
nextIteration.push(candidates[i]);
|
||||
}
|
||||
}
|
||||
cells = nextIteration;
|
||||
render();
|
||||
}
|
||||
|
||||
function isAlive(cell){
|
||||
return (cells.filter(function(currentCell){
|
||||
return (currentCell.x === cell.x && currentCell.y === cell.y);
|
||||
}).length > 0);
|
||||
}
|
||||
|
||||
function countNeighbours(cell){
|
||||
var x1 = cell.x-1,
|
||||
x2 = cell.x+1,
|
||||
y1 = cell.y-1,
|
||||
y2 = cell.y+1;
|
||||
|
||||
var neighbours = cells.filter(function(possibleNeighbour){
|
||||
if(possibleNeighbour.x === cell.x && possibleNeighbour.y === cell.y){
|
||||
return false;
|
||||
}
|
||||
return (possibleNeighbour.x >= x1 && possibleNeighbour.x <= x2 && possibleNeighbour.y >= y1 && possibleNeighbour.y <= y2);
|
||||
});
|
||||
return neighbours.length;
|
||||
}
|
||||
|
||||
init();
|
||||
}());
|
||||
</script>
|
||||
@ -18,9 +18,13 @@ Conway's Game of Life is a 0-player turn based simulation of life. The "game" fo
|
||||
The rules of the game are as follows:
|
||||
|
||||
<blockquote markdown="1">
|
||||
|
||||
* Any live cell with fewer than two live neighbours dies, as if caused by under-population.
|
||||
|
||||
* Any live cell with two or three live neighbours lives on to the next generation.
|
||||
|
||||
* Any live cell with more than three live neighbours dies, as if by overcrowding.
|
||||
|
||||
* Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction.
|
||||
|
||||
<cite>Wikipedia - http://en.wikipedia.org/wiki/Conway's_Game_of_Life</cite>
|
||||
@ -67,8 +71,8 @@ This is the approach I used last night. I have struggled on effectively calculat
|
||||
# Final Code
|
||||
|
||||
<figure class="center" markdown="1">
|
||||
<a href="/ConwaysGameOfLife.html">
|
||||
|
||||
<a href="{{ site.url }}/Conways-Game-Of-Life" target="_blank">
|
||||
<img src="{{site.url}}/images/conways-game-of-life.PNG" alt="Conway's Game of Life">
|
||||
</a>
|
||||
<figcaption>They LIVE!!!</figcaption>
|
||||
</figure>
|
||||
@ -178,7 +182,7 @@ init();
|
||||
</code></pre>
|
||||
|
||||
|
||||
You can check out the [final version](/ConwaysGameOfLife.html) or take a look at the [gist](https://gist.github.com/AverageMarcus/f5e34825ef89e11443be).
|
||||
You can check out the [final version](/Conways-Game-Of-Life) or take a look at the [gist](https://gist.github.com/AverageMarcus/f5e34825ef89e11443be).
|
||||
|
||||
As always, if you have any comments <a href="https://twitter.com/intent/tweet?screen_name=Marcus_Noble_" class="twitter-contact-link" data-related="Marcus_Noble_" data-dnt="true" target="_blank"><i class="icon-twitter"></i>Tweet @Marcus\_Noble_</a>.
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user