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fractal.js
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fractal.js
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/*
* @licstart The following is the entire license notice for the
* JavaScript code in this page.
*
* Copyright (C) 2014 Andreas Rohner
*
* The JavaScript code in this page is free software: you can
* redistribute it and/or modify it under the terms of the GNU
* General Public License (GNU GPL) as published by the Free Software
* Foundation, either version 3 of the License, or (at your option)
* any later version. The code is distributed WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
*
* As additional permission under GNU GPL version 3 section 7, you
* may distribute non-source (e.g., minimized or compacted) forms of
* that code without the copy of the GNU GPL normally required by
* section 4, provided you include this license notice and a URL
* through which recipients can access the Corresponding Source.
*
* @licend The above is the entire license notice
* for the JavaScript code in this page.
*/
var Fractal = (function(Fractal) {
"use strict";
// Check for double inclusion
if (Fractal.Fractal)
return Fractal;
// constructor
function FractalBase(canvas, pos) {
if (!(this instanceof FractalBase))
return new FractalBase(canvas, pos);
this.width = canvas.width;
this.height = canvas.height;
this.ctx = canvas.getContext("2d");
FractalBase.prototype.update.call(this, pos);
}
FractalBase.prototype = {
clear : function() {
this.ctx.clearRect(0, 0, this.width, this.height);
},
update: function(pos) {
var x = pos && pos.x || 0,
y = pos && pos.y || 0;
this.pos = this.pos || {x: 0, y: 0};
this.pos.x = x;
this.pos.y = y;
},
getCanvas: function() {
return this.ctx.canvas;
}
};
Fractal.Fractal = FractalBase;
return Fractal;
}(Fractal || {}));