This is a bl.ocks.org version of Jan Willem Tulp's Game of Life D3 implementation, lightly edited.
Created
October 27, 2011 03:15
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Conway's Game of Life
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <link href="reset.css" rel="stylesheet" type="text/css"></link> | |
| <script src="https://github.com/mbostock/d3/raw/master/d3.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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