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<h1 class="page-title">Source: core/Filter.js</h1>
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<section>
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<article>
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<pre class="sunlight-highlight-javascript linenums">/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2013 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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/**
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* This is a base Filter template to use for any Phaser filter development.
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*
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* @class Phaser.Filter
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* @classdesc Phaser - Filter
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* @constructor
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* @param {Phaser.Game} game - A reference to the currently running game.
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* @param {Object} uniforms - Uniform mappings object
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* @param {Array} fragmentSrc - The fragment shader code.
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*/
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Phaser.Filter = function (game, uniforms, fragmentSrc) {
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/**
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* @property {Phaser.Game} game - A reference to the currently running game.
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*/
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this.game = game;
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/**
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* @property {number} type - The const type of this object, either Phaser.WEBGL_FILTER or Phaser.CANVAS_FILTER.
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* @default
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*/
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this.type = Phaser.WEBGL_FILTER;
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/**
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* An array of passes - some filters contain a few steps this array simply stores the steps in a linear fashion.
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* For example the blur filter has two passes blurX and blurY.
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* @property {array} passes - An array of filter objects.
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* @private
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*/
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this.passes = [this];
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/**
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* @property {boolean} dirty - Internal PIXI var.
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* @default
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*/
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this.dirty = true;
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/**
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* @property {number} padding - Internal PIXI var.
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* @default
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*/
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this.padding = 0;
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/**
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* @property {object} uniforms - Default uniform mappings.
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*/
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this.uniforms = {
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resolution: { type: '3f', value: { x: 256, y: 256, z: 0 }},
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time: { type: '1f', value: 0 },
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mouse: { type: '4f', value: { x: 0, y: 0, z: 0, w: 0 }}
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};
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/**
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* @property {array} fragmentSrc - The fragment shader code.
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*/
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this.fragmentSrc = fragmentSrc || [];
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};
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Phaser.Filter.prototype = {
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/**
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* Should be over-ridden.
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* @method Phaser.Filter#init
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*/
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init: function () {
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// This should be over-ridden. Will receive a variable number of arguments.
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},
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/**
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* Set the resolution uniforms on the filter.
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* @method Phaser.Filter#setResolution
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* @param {number} width - The width of the display.
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* @param {number} height - The height of the display.
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*/
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setResolution: function (width, height) {
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this.uniforms.resolution.value.x = width;
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this.uniforms.resolution.value.y = height;
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},
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/**
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* Updates the filter.
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* @method Phaser.Filter#update
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* @param {Phaser.Pointer} [pointer] - A Pointer object to use for the filter. The coordinates are mapped to the mouse uniform.
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*/
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update: function (pointer) {
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if (typeof pointer !== 'undefined')
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{
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this.uniforms.mouse.x = pointer.x;
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this.uniforms.mouse.y = pointer.y;
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}
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this.uniforms.time.value = this.game.time.totalElapsedSeconds();
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},
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/**
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* Clear down this Filter and null out references
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* @method Phaser.Filter#destroy
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*/
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destroy: function () {
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this.game = null;
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}
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};
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/**
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* @name Phaser.Filter#width
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* @property {number} width - The width (resolution uniform)
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*/
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Object.defineProperty(Phaser.Filter.prototype, 'width', {
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get: function() {
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return this.uniforms.resolution.value.x;
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},
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set: function(value) {
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this.uniforms.resolution.value.x = value;
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}
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});
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/**
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* @name Phaser.Filter#height
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* @property {number} height - The height (resolution uniform)
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*/
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Object.defineProperty(Phaser.Filter.prototype, 'height', {
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get: function() {
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return this.uniforms.resolution.value.y;
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},
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set: function(value) {
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this.uniforms.resolution.value.y = value;
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}
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});
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</pre>
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</article>
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</section>
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<footer>
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<span class="copyright">
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Phaser Copyright © 2012-2013 Photon Storm Ltd.
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</span>
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<br />
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<span class="jsdoc-message">
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-dev</a>
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on Thu Nov 28 2013 15:56:25 GMT-0000 (GMT) using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
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<br clear="both">
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<script src="scripts/jquery.min.js"></script>
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<script src="scripts/jquery.scrollTo.js"></script>
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<script src="scripts/jquery.localScroll.js"></script>
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<script src="scripts/bootstrap-dropdown.js"></script>
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<script src="scripts/toc.js"></script>
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<script> Sunlight.highlightAll({lineNumbers:true, showMenu: true, enableDoclinks :true}); </script>
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<script>
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$( function () {
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$( "#toc" ).toc( {
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selectors : "h1,h2,h3,h4",
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showAndHide : false,
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scrollTo : 60
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} );
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$( "#toc>ul" ).addClass( "nav nav-pills nav-stacked" );
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$( "#main span[id^='toc']" ).addClass( "toc-shim" );
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} );
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</script>
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</body>
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</html>
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