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docs/files/src_pixi_extras_Rope.js.html
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docs/files/src_pixi_extras_Rope.js.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>src/pixi/extras/Rope.js - Pixi.JS</title>
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<link rel="stylesheet" href="http://yui.yahooapis.com/3.8.0/build/cssgrids/cssgrids-min.css">
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<link rel="stylesheet" href="../assets/vendor/prettify/prettify-min.css">
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<link rel="stylesheet" href="../assets/css/main.css" id="site_styles">
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<link rel="shortcut icon" type="image/png" href="../assets/favicon.png">
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<script src="http://yui.yahooapis.com/combo?3.8.0/build/yui/yui-min.js"></script>
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</head>
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<body class="yui3-skin-sam">
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<div id="doc">
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<div id="hd" class="yui3-g header">
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<div class="yui3-u-3-4">
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<h1><img src="http://www.goodboydigital.com/pixijs/logo_small.png" title="Pixi.JS"></h1>
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</div>
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<div class="yui3-u-1-4 version">
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<em>API Docs for: 1.0.0</em>
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</div>
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</div>
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<div id="bd" class="yui3-g">
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<div class="yui3-u-1-4">
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<div id="docs-sidebar" class="sidebar apidocs">
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<div id="api-list">
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<h2 class="off-left">APIs</h2>
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<div id="api-tabview" class="tabview">
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<ul class="tabs">
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<li><a href="#api-classes">Classes</a></li>
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<li><a href="#api-modules">Modules</a></li>
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</ul>
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<div id="api-tabview-filter">
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<input type="search" id="api-filter" placeholder="Type to filter APIs">
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</div>
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<div id="api-tabview-panel">
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<ul id="api-classes" class="apis classes">
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<li><a href="../classes/AssetLoader.html">AssetLoader</a></li>
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<li><a href="../classes/BaseTexture.html">BaseTexture</a></li>
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<li><a href="../classes/CanvasRenderer.html">CanvasRenderer</a></li>
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<li><a href="../classes/DisplayObject.html">DisplayObject</a></li>
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<li><a href="../classes/DisplayObjectContainer.html">DisplayObjectContainer</a></li>
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<li><a href="../classes/InteractionData.html">InteractionData</a></li>
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<li><a href="../classes/InteractionManager.html">InteractionManager</a></li>
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<li><a href="../classes/MovieClip.html">MovieClip</a></li>
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<li><a href="../classes/Point.html">Point</a></li>
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<li><a href="../classes/Rectangle.html">Rectangle</a></li>
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<li><a href="../classes/Sprite.html">Sprite</a></li>
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<li><a href="../classes/SpriteSheetLoader.html">SpriteSheetLoader</a></li>
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<li><a href="../classes/Stage.html">Stage</a></li>
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<li><a href="../classes/Texture.html">Texture</a></li>
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<li><a href="../classes/WebGLBatch.html">WebGLBatch</a></li>
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<li><a href="../classes/WebGLRenderer.html">WebGLRenderer</a></li>
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</ul>
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<ul id="api-modules" class="apis modules">
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<li><a href="../modules/PIXI.html">PIXI</a></li>
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</ul>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div class="yui3-u-3-4">
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<div id="api-options">
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Show:
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<label for="api-show-inherited">
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<input type="checkbox" id="api-show-inherited" checked>
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Inherited
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</label>
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<label for="api-show-protected">
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<input type="checkbox" id="api-show-protected">
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Protected
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</label>
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<label for="api-show-private">
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<input type="checkbox" id="api-show-private">
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Private
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</label>
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<label for="api-show-deprecated">
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<input type="checkbox" id="api-show-deprecated">
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Deprecated
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</label>
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</div>
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<div class="apidocs">
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<div id="docs-main">
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<div class="content">
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<h1 class="file-heading">File: src/pixi/extras/Rope.js</h1>
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<div class="file">
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<pre class="code prettyprint linenums">
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/**
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* @author Mat Groves http://matgroves.com/
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*/
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PIXI.Rope = function(texture, points)
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{
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PIXI.Strip.call( this, texture );
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this.points = points;
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try
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{
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this.verticies = new Float32Array( points.length * 4);
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this.uvs = new Float32Array( points.length * 4);
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this.colors = new Float32Array( points.length * 2);
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this.indices = new Uint16Array( points.length * 2);
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}
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catch(error)
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{
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this.verticies = verticies
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this.uvs = uvs
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this.colors = colors
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this.indices = indices
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}
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this.refresh();
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}
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// constructor
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PIXI.Rope.constructor = PIXI.Rope;
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PIXI.Rope.prototype = Object.create( PIXI.Strip.prototype );
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PIXI.Rope.prototype.refresh = function()
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{
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var points = this.points;
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if(points.length < 1)return;
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var uvs = this.uvs
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var indices = this.indices;
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var colors = this.colors;
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var lastPoint = points[0];
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var nextPoint;
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var perp = {x:0, y:0};
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var point = points[0];
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this.count-=0.2;
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uvs[0] = 0
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uvs[1] = 1
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uvs[2] = 0
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uvs[3] = 1
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colors[0] = 1;
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colors[1] = 1;
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indices[0] = 0;
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indices[1] = 1;
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var total = points.length;
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for (var i = 1; i < total; i++)
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{
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var point = points[i];
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var index = i * 4;
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// time to do some smart drawing!
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var amount = i/(total-1)
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if(i%2)
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{
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uvs[index] = amount;
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uvs[index+1] = 0;
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uvs[index+2] = amount
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uvs[index+3] = 1
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}
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else
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{
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uvs[index] = amount
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uvs[index+1] = 0
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uvs[index+2] = amount
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uvs[index+3] = 1
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}
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index = i * 2;
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colors[index] = 1;
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colors[index+1] = 1;
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index = i * 2;
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indices[index] = index;
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indices[index + 1] = index + 1;
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lastPoint = point;
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}
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}
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PIXI.Rope.prototype.updateTransform = function()
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{
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var points = this.points;
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if(points.length < 1)return;
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var verticies = this.verticies
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var lastPoint = points[0];
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var nextPoint;
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var perp = {x:0, y:0};
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var point = points[0];
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this.count-=0.2;
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verticies[0] = point.x + perp.x
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verticies[1] = point.y + perp.y //+ 200
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verticies[2] = point.x - perp.x
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verticies[3] = point.y - perp.y//+200
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// time to do some smart drawing!
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var total = points.length;
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for (var i = 1; i < total; i++)
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{
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var point = points[i];
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var index = i * 4;
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if(i < points.length-1)
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{
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nextPoint = points[i+1];
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}
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else
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{
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nextPoint = point
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}
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perp.y = -(nextPoint.x - lastPoint.x);
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perp.x = nextPoint.y - lastPoint.y;
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var ratio = (1 - (i / (total-1))) * 10;
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if(ratio > 1)ratio = 1;
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var perpLength = Math.sqrt(perp.x * perp.x + perp.y * perp.y);
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var num = this.texture.height/2//(20 + Math.abs(Math.sin((i + this.count) * 0.3) * 50) )* ratio;
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perp.x /= perpLength;
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perp.y /= perpLength;
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perp.x *= num;
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perp.y *= num;
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verticies[index] = point.x + perp.x
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verticies[index+1] = point.y + perp.y
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verticies[index+2] = point.x - perp.x
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verticies[index+3] = point.y - perp.y
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lastPoint = point;
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}
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PIXI.DisplayObjectContainer.prototype.updateTransform.call( this );
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}
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PIXI.Rope.prototype.setTexture = function(texture)
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{
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// stop current texture
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this.texture = texture;
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this.updateFrame = true;
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}
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</pre>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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<script src="../assets/vendor/prettify/prettify-min.js"></script>
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<script>prettyPrint();</script>
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<script src="../assets/js/yui-prettify.js"></script>
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<script src="../assets/../api.js"></script>
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<script src="../assets/js/api-filter.js"></script>
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<script src="../assets/js/api-list.js"></script>
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<script src="../assets/js/api-search.js"></script>
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<script src="../assets/js/apidocs.js"></script>
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</body>
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</html>
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