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23 lines
424 B
23 lines
424 B
// Park-Miller-Carta Pseudo-Random Number Generator
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// https://github.com/pnitsch/BitmapData.js/blob/master/js/BitmapData.js
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var PRNG = function () {
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this.seed = 1;
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this.next = function() {
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return ( this.gen() / 2147483647 );
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};
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this.nextRange = function( min, max ) {
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return min + ( ( max - min ) * this.next() )
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};
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this.gen = function() {
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return this.seed = ( this.seed * 16807 ) % 2147483647;
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};
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};
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