This is a bl.ocks.org version of Jan Willem Tulp's Game of Life D3 implementation, lightly edited.
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<!DOCTYPE html> | |
<html> | |
<head> | |
<link href="reset.css" rel="stylesheet" type="text/css"></link> | |
<script src="http://d3js.org/d3.v3.min.js"></script> | |
<style> | |
rect { fill: #FFF; stroke: none; } | |
.life { fill: #ACE; } | |
rect:hover { stroke: #BDF; } | |
</style> | |
</head> | |
<body> | |
<script src="life.js"></script> | |
</body> | |
</html> |
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var w = 960 // bl.ocks.org viewport width | |
, h = 500 // bl.ocks.org viewport height | |
, cw = 8 // cellWidth | |
, ch = 8 // cellHeight | |
, m = false // toggle mode on mousedown/mouseup | |
, ccx = w/cw // cell count x | |
, ccy = h/ch // cell count y | |
, del = 100 // ms between generations | |
, xs = d3.scale.linear().domain([0, ccx]).rangeRound([0, ccx * cw]) | |
, ys = d3.scale.linear().domain([0, ccy]).rangeRound([0, ccy * ch]) | |
, states = [] | |
; | |
d3.range(ccx * ccy).forEach(function(c) { | |
states[c] = Math.random() > .8; | |
}); | |
var vis = d3.select('body').append('svg:svg') | |
.attr('width', w) | |
.attr('height', h); | |
vis.selectAll('rect') | |
.data(states) | |
.enter().append('svg:rect') | |
.attr('width', cw) | |
.attr('height', ch) | |
.attr('x', function(d, i) { return xs(i % ccx); }) | |
.attr('y', function(d, i) { return ys(i / ccx | 0); }) | |
.on('mouseup', function() { m = false; }) | |
.on('mousedown', function() { m = true; }) | |
.on('mousemove', function(d, i) { if (m) states[i] = !states[i]; }) | |
.classed('life', function(d) { return d; }); | |
function createNewGeneration() { | |
var c, x, y, t, r, b, l, n, nextState = []; | |
for (x = 0; x < ccx; x++) { | |
l = x - 1; | |
r = x + 1; | |
for (y = 0; y < ccy; y++) { | |
t = y - 1; | |
b = y + 1; | |
n = states[coord(l,t)] + states[coord(x,t)] + states[coord(r,t)] | |
+ states[coord(l,y)] + states[coord(r,y)] | |
+ states[coord(l,b)] + states[coord(x,b)] + states[coord(r,b)]; | |
nextState[c = coord(x,y)] = states[c] ? n == 2 || n == 3 : n == 3; | |
} | |
} | |
return nextState; | |
} | |
function coord(x, y) { | |
return coord[x +','+ y] || | |
(coord[x +','+ y] = ccx * ((ccy + y) % ccy) + ((ccx + x) % ccx)); | |
} | |
function animate() { | |
d3.selectAll('rect') | |
.data(states = createNewGeneration()) | |
.classed('life', function(d) { return d; }); | |
} | |
setInterval(animate, del); |
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/* http://meyerweb.com/eric/tools/css/reset/ | |
v2.0 | 20110126 | |
License: none (public domain) | |
*/ | |
html, body, div, span, applet, object, iframe, | |
h1, h2, h3, h4, h5, h6, p, blockquote, pre, | |
a, abbr, acronym, address, big, cite, code, | |
del, dfn, em, img, ins, kbd, q, s, samp, | |
small, strike, strong, sub, sup, tt, var, | |
b, u, i, center, | |
dl, dt, dd, ol, ul, li, | |
fieldset, form, label, legend, | |
table, caption, tbody, tfoot, thead, tr, th, td, | |
article, aside, canvas, details, embed, | |
figure, figcaption, footer, header, hgroup, | |
menu, nav, output, ruby, section, summary, | |
time, mark, audio, video { | |
margin: 0; | |
padding: 0; | |
border: 0; | |
font-size: 100%; | |
font: inherit; | |
vertical-align: baseline; | |
} | |
/* HTML5 display-role reset for older browsers */ | |
article, aside, details, figcaption, figure, | |
footer, header, hgroup, menu, nav, section { | |
display: block; | |
} | |
body { | |
line-height: 1; | |
} | |
ol, ul { | |
list-style: none; | |
} | |
blockquote, q { | |
quotes: none; | |
} | |
blockquote:before, blockquote:after, | |
q:before, q:after { | |
content: ''; | |
content: none; | |
} | |
table { | |
border-collapse: collapse; | |
border-spacing: 0; | |
} |
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