@azerion/phaser

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Phaser Source: src/utils/Color.js</title>  <link type="text/css" rel="stylesheet" href="styles/default.css"> <link type="text/css" rel="stylesheet" href="styles/sunlight.default.css"> <link type="text/css" rel="stylesheet" href="styles/site.cerulean.css"> </head> <body> <div class="container-fluid"> <div class="navbar navbar-fixed-top navbar-inverse"> <div style="position: absolute; width: 143px; height: 31px; right: 10px; top: 10px; z-index: 1050"><a href="http://phaser.io"><img src="img/phaser.png" border="0" /></a></div> <div class="navbar-inner"> <a class="brand" href="index.html">Phaser API</a> <ul class="nav"> <li class="dropdown"> <a href="namespaces.list.html" class="dropdown-toggle" data-toggle="dropdown">Namespaces<b class="caret"></b></a> <ul class="dropdown-menu "> <li class="class-depth-0"> <a href="Phaser.html">Phaser</a> </li> <li class="class-depth-0"> <a href="PIXI.html">PIXI</a> </li> </ul> </li> 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href="Phaser.Key.html">Key</a></li> <li class="class-depth-1"><a href="Phaser.KeyCode.html">Key Codes</a></li> <li class="class-depth-1"><a href="Phaser.Gamepad.html">Gamepad</a></li> </ul> </li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">Community<b class="caret"></b></a> <ul class="dropdown-menu "> <li class="class-depth-1"><a href="http://phaser.io">Phaser Web Site</a></li> <li class="class-depth-1"><a href="https://github.com/photonstorm/phaser">Phaser Github</a></li> <li class="class-depth-1"><a href="http://phaser.io/examples">Phaser Examples</a></li> <li class="class-depth-1"><a href="https://github.com/photonstorm/phaser-plugins">Phaser Plugins</a></li> <li class="class-depth-1"><a href="http://www.html5gamedevs.com/forum/14-phaser/">Forum</a></li> <li class="class-depth-1"><a href="http://stackoverflow.com/questions/tagged/phaser-framework">Stack Overflow</a></li> <li class="class-depth-1"><a href="http://phaser.io/learn">Tutorials</a></li> <li class="class-depth-1"><a href="http://phaser.io/community/newsletter">Newsletter</a></li> <li class="class-depth-1"><a href="http://phaser.io/community/twitter">Twitter</a></li> <li class="class-depth-1"><a href="http://phaser.io/community/slack">Slack</a></li> <li class="class-depth-1"><a href="http://phaser.io/community/donate">Donate</a></li> <li class="class-depth-1"><a href="https://www.codeandweb.com/texturepacker/phaser">Texture Packer</a></li> </ul> </li> </ul> </div> </div> <div class="row-fluid"> <div class="span12"> <div id="main"> <h1 class="page-title">Source: src/utils/Color.js</h1> <section> <article> <pre class="sunlight-highlight-javascript linenums">/** * @author Richard Davey <rich@photonstorm.com> * @copyright 2016 Photon Storm Ltd. * @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License} */ /** * The Phaser.Color class is a set of static methods that assist in color manipulation and conversion. * * @class Phaser.Color */ Phaser.Color = { /** * Packs the r, g, b, a components into a single integer, for use with Int32Array. * If device is little endian then ABGR order is used. Otherwise RGBA order is used. * * @author Matt DesLauriers (@mattdesl) * @method Phaser.Color.packPixel * @static * @param {number} r - The red color component, in the range 0 - 255. * @param {number} g - The green color component, in the range 0 - 255. * @param {number} b - The blue color component, in the range 0 - 255. * @param {number} a - The alpha color component, in the range 0 - 255. * @return {number} The packed color as uint32 */ packPixel: function (r, g, b, a) { if (Phaser.Device.LITTLE_ENDIAN) { return ( (a << 24) | (b << 16) | (g << 8) | r ) >>> 0; } else { return ( (r << 24) | (g << 16) | (b << 8) | a ) >>> 0; } }, /** * Unpacks the r, g, b, a components into the specified color object, or a new * object, for use with Int32Array. If little endian, then ABGR order is used when * unpacking, otherwise, RGBA order is used. The resulting color object has the * `r, g, b, a` properties which are unrelated to endianness. * * Note that the integer is assumed to be packed in the correct endianness. On little-endian * the format is 0xAABBGGRR and on big-endian the format is 0xRRGGBBAA. If you want a * endian-independent method, use fromRGBA(rgba) and toRGBA(r, g, b, a). * * @author Matt DesLauriers (@mattdesl) * @method Phaser.Color.unpackPixel * @static * @param {number} rgba - The integer, packed in endian order by packPixel. * @param {object} [out] - An object into which 3 properties will be created: r, g and b. If not provided a new object will be created. * @param {boolean} [hsl=false] - Also convert the rgb values into hsl? * @param {boolean} [hsv=false] - Also convert the rgb values into hsv? * @return {object} An object with the red, green and blue values set in the r, g and b properties. */ unpackPixel: function (rgba, out, hsl, hsv) { if (out === undefined || out === null) { out = Phaser.Color.createColor(); } if (hsl === undefined || hsl === null) { hsl = false; } if (hsv === undefined || hsv === null) { hsv = false; } if (Phaser.Device.LITTLE_ENDIAN) { out.a = ((rgba & 0xff000000) >>> 24); out.b = ((rgba & 0x00ff0000) >>> 16); out.g = ((rgba & 0x0000ff00) >>> 8); out.r = ((rgba & 0x000000ff)); } else { out.r = ((rgba & 0xff000000) >>> 24); out.g = ((rgba & 0x00ff0000) >>> 16); out.b = ((rgba & 0x0000ff00) >>> 8); out.a = ((rgba & 0x000000ff)); } out.color = rgba; out.rgba = 'rgba(' + out.r + ',' + out.g + ',' + out.b + ',' + (out.a / 255) + ')'; if (hsl) { Phaser.Color.RGBtoHSL(out.r, out.g, out.b, out); } if (hsv) { Phaser.Color.RGBtoHSV(out.r, out.g, out.b, out); } return out; }, /** * A utility to convert an integer in 0xRRGGBBAA format to a color object. * This does not rely on endianness. * * @author Matt DesLauriers (@mattdesl) * @method Phaser.Color.fromRGBA * @static * @param {number} rgba - An RGBA hex * @param {object} [out] - The object to use, optional. * @return {object} A color object. */ fromRGBA: function (rgba, out) { if (!out) { out = Phaser.Color.createColor(); } out.r = ((rgba & 0xff000000) >>> 24); out.g = ((rgba & 0x00ff0000) >>> 16); out.b = ((rgba & 0x0000ff00) >>> 8); out.a = ((rgba & 0x000000ff)); out.rgba = 'rgba(' + out.r + ',' + out.g + ',' + out.b + ',' + out.a + ')'; return out; }, /** * A utility to convert RGBA components to a 32 bit integer in RRGGBBAA format. * * @author Matt DesLauriers (@mattdesl) * @method Phaser.Color.toRGBA * @static * @param {number} r - The red color component, in the range 0 - 255. * @param {number} g - The green color component, in the range 0 - 255. * @param {number} b - The blue color component, in the range 0 - 255. * @param {number} a - The alpha color component, in the range 0 - 255. * @return {number} A RGBA-packed 32 bit integer */ toRGBA: function (r, g, b, a) { return (r << 24) | (g << 16) | (b << 8) | a; }, /** * Converts RGBA components to a 32 bit integer in AABBGGRR format. * * @method Phaser.Color.toABGR * @static * @param {number} r - The red color component, in the range 0 - 255. * @param {number} g - The green color component, in the range 0 - 255. * @param {number} b - The blue color component, in the range 0 - 255. * @param {number} a - The alpha color component, in the range 0 - 255. * @return {number} A RGBA-packed 32 bit integer */ toABGR: function (r, g, b, a) { return ((a << 24) | (b << 16) | (g << 8) | r) >>> 0; }, /** * Converts an RGB color value to HSL (hue, saturation and lightness). * Conversion forumla from http://en.wikipedia.org/wiki/HSL_color_space. * Assumes RGB values are contained in the set [0, 255] and returns h, s and l in the set [0, 1]. * Based on code by Michael Jackson (https://github.com/mjijackson) * * @method Phaser.Color.RGBtoHSL * @static * @param {number} r - The red color component, in the range 0 - 255. * @param {number} g - The green color component, in the range 0 - 255. * @param {number} b - The blue color component, in the range 0 - 255. * @param {object} [out] - An object into which 3 properties will be created, h, s and l. If not provided a new object will be created. * @return {object} An object with the hue, saturation and lightness values set in the h, s and l properties. */ RGBtoHSL: function (r, g, b, out) { if (!out) { out = Phaser.Color.createColor(r, g, b, 1); } r /= 255; g /= 255; b /= 255; var min = Math.min(r, g, b); var max = Math.max(r, g, b); // achromatic by default out.h = 0; out.s = 0; out.l = (max + min) / 2; if (max !== min) { var d = max - min; out.s = out.l > 0.5 ? d / (2 - max - min) : d / (max + min); if (max === r) { out.h = (g - b) / d + (g < b ? 6 : 0); } else if (max === g) { out.h = (b - r) / d + 2; } else if (max === b) { out.h = (r - g) / d + 4; } out.h /= 6; } return out; }, /** * Converts an HSL (hue, saturation and lightness) color value to RGB. * Conversion forumla from http://en.wikipedia.org/wiki/HSL_color_space. * Assumes HSL values are contained in the set [0, 1] and returns r, g and b values in the set [0, 255]. * Based on code by Michael Jackson (https://github.com/mjijackson) * * @method Phaser.Color.HSLtoRGB * @static * @param {number} h - The hue, in the range 0 - 1. * @param {number} s - The saturation, in the range 0 - 1. * @param {number} l - The lightness, in the range 0 - 1. * @param {object} [out] - An object into which 3 properties will be created: r, g and b. If not provided a new object will be created. * @return {object} An object with the red, green and blue values set in the r, g and b properties. */ HSLtoRGB: function (h, s, l, out) { if (!out) { out = Phaser.Color.createColor(l, l, l); } else { // achromatic by default out.r = l; out.g = l; out.b = l; } if (s !== 0) { var q = l < 0.5 ? l * (1 + s) : l + s - l * s; var p = 2 * l - q; out.r = Phaser.Color.hueToColor(p, q, h + 1 / 3); out.g = Phaser.Color.hueToColor(p, q, h); out.b = Phaser.Color.hueToColor(p, q, h - 1 / 3); } // out.r = (out.r * 255 | 0); // out.g = (out.g * 255 | 0); // out.b = (out.b * 255 | 0); out.r = Math.floor((out.r * 255 | 0)); out.g = Math.floor((out.g * 255 | 0)); out.b = Math.floor((out.b * 255 | 0)); Phaser.Color.updateColor(out); return out; }, /** * Converts an RGB color value to HSV (hue, saturation and value). * Conversion forumla from http://en.wikipedia.org/wiki/HSL_color_space. * Assumes RGB values are contained in the set [0, 255] and returns h, s and v in the set [0, 1]. * Based on code by Michael Jackson (https://github.com/mjijackson) * * @method Phaser.Color.RGBtoHSV * @static * @param {number} r - The red color component, in the range 0 - 255. * @param {number} g - The green color component, in the range 0 - 255. * @param {number} b - The blue color component, in the range 0 - 255. * @param {object} [out] - An object into which 3 properties will be created, h, s and v. If not provided a new object will be created. * @return {object} An object with the hue, saturation and value set in the h, s and v properties. */ RGBtoHSV: function (r, g, b, out) { if (!out) { o