Created
December 11, 2011 16:57
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Cellular Automata with HTML5
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<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml"> | |
<head> | |
<meta http-equiv="content-type" content="text/html; charset=utf-8"/> | |
<script type="text/javascript" charset="utf-8"> | |
function bloques () { | |
var canvasContext = document.getElementById("canvas").getContext("2d"); | |
canvasContext.fillStyle = "rgba(200,200,200,0.0)"; | |
var dx=2; | |
var a=new Array(); var b=new Array(); | |
for (var i = 0; i < 200; i += 1) a[i]=Math.round(Math.random()); | |
for (var j = 0; j < a.length; j += 1) | |
for (var i = 0; i < a.length; i += 1) { | |
canvasContext.fillRect(i*dx,j*dx,dx-1,dx-1); | |
}; | |
canvasContext.fillStyle = "rgba(200,200,200,0.9)"; | |
var alpha=0.9; | |
for (var j = 0; j < a.length*3/2; j += 1){ | |
for (var i = 0; i < a.length; i += 1) b[i]=a[i]; | |
for (var i = 0; i < a.length; i += 1) { | |
bj=b[(i+1)%a.length]; | |
bk=b[i]; | |
bl=b[(i+a.length-1)%a.length]; | |
a[i]=r110(bj,bk,bl); if (a[i]==1) { | |
canvasContext.fillRect(i*dx,j*dx,dx-1,dx-1); | |
} | |
}; | |
alpha-=0.004; | |
canvasContext.globalAlpha=alpha; | |
} | |
} | |
function r110 (j,k,l) { | |
// [rule 110](http://en.wikipedia.org/wiki/Rule_110) | |
if( j==1 && k == 1 && l==1) return 0; | |
if( j==1 && k == 1 && l==0) return 1; | |
if( j==1 && k == 0 && l==1) return 1; | |
if( j==1 && k == 0 && l==0) return 0; | |
if( j==0 && k == 1 && l==1) return 1; | |
if( j==0 && k == 1 && l==0) return 1; | |
if( j==0 && k == 0 && l==1) return 1; | |
if( j==0 && k == 0 && l==0) return 0; | |
} | |
</script> | |
</head> | |
<body onload="bloques()"> | |
<canvas id="canvas" width="400" height="400"> | |
</canvas> | |
</body> | |
</html> |
Author
juanpabloaj
commented
Dec 11, 2011
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