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< li class = "class-depth-1" >
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< li class = "class-depth-1" >
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< li class = "class-depth-1" >
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< li class = "class-depth-1" >
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< / ul >
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< div class = "row-fluid" >
< div class = "span12" >
< div id = "main" >
< h1 class = "page-title" > Source: utils/Utils.js< / h1 >
< section >
< article >
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< pre class = "sunlight-highlight-javascript linenums" > /* jshint supernew: true */
/**
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* @author Richard Davey < rich@photonstorm.com>
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* @copyright 2014 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* @class Phaser.Utils
* @static
*/
Phaser.Utils = {
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/**
* Gets an objects property by string.
*
* @method Phaser.Utils.getProperty
* @param {object} obj - The object to traverse.
* @param {string} prop - The property whose value will be returned.
* @return {*} the value of the property or null if property isn't found .
*/
getProperty: function(obj, prop) {
var parts = prop.split('.'),
last = parts.pop(),
l = parts.length,
i = 1,
current = parts[0];
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while (i < l & & (obj = obj[current]))
{
current = parts[i];
i++;
}
if (obj)
{
return obj[last];
}
else
{
return null;
}
},
/**
* Sets an objects property by string.
*
* @method Phaser.Utils.setProperty
* @param {object} obj - The object to traverse
* @param {string} prop - The property whose value will be changed
* @return {object} The object on which the property was set.
*/
setProperty: function(obj, prop, value) {
var parts = prop.split('.'),
last = parts.pop(),
l = parts.length,
i = 1,
current = parts[0];
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while (i < l & & (obj = obj[current]))
{
current = parts[i];
i++;
}
if (obj)
{
obj[last] = value;
}
return obj;
},
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/**
* Transposes the elements of the given Array.
*
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* @method Phaser.Utils.transposeArray
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* @param {array} array - The array to transpose.
* @return {array} The transposed array.
*/
transposeArray: function (array) {
var result = new Array(array[0].length);
for (var i = 0; i < array[0].length; i++)
{
result[i] = new Array(array.length - 1);
for (var j = array.length - 1; j > -1; j--)
{
result[i][j] = array[j][i];
}
}
return result;
},
/**
* Rotates the given array.
* Based on the routine from http://jsfiddle.net/MrPolywhirl/NH42z/
*
* @method Phaser.Utils.rotateArray
* @param {array} matrix - The array to rotate.
* @param {number|string} direction - The amount to rotate. Either a number: 90, -90, 270, -270, 180 or a string: 'rotateLeft', 'rotateRight' or 'rotate180'
* @return {array} The rotated array
*/
rotateArray: function (matrix, direction) {
if (typeof direction !== 'string')
{
direction = ((direction % 360) + 360) % 360;
}
if (direction === 90 || direction === -270 || direction === 'rotateLeft')
{
matrix = Phaser.Utils.transposeArray(matrix);
matrix = matrix.reverse();
}
else if (direction === -90 || direction === 270 || direction === 'rotateRight')
{
matrix = matrix.reverse();
matrix = Phaser.Utils.transposeArray(matrix);
}
else if (Math.abs(direction) === 180 || direction === 'rotate180')
{
for (var i = 0; i < matrix.length; i++)
{
matrix[i].reverse();
}
matrix = matrix.reverse();
}
return matrix;
},
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/**
* Get a unit dimension from a string.
*
* @method Phaser.Utils.parseDimension
* @param {string|number} size - The size to parse.
* @param {number} dimension - The window dimension to check.
* @return {number} The parsed dimension.
*/
parseDimension: function (size, dimension) {
var f = 0;
var px = 0;
if (typeof size === 'string')
{
// %?
if (size.substr(-1) === '%')
{
f = parseInt(size, 10) / 100;
if (dimension === 0)
{
px = window.innerWidth * f;
}
else
{
px = window.innerHeight * f;
}
}
else
{
px = parseInt(size, 10);
}
}
else
{
px = size;
}
return px;
},
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/**
* A standard Fisher-Yates Array shuffle implementation.
* @method Phaser.Utils.shuffle
* @param {array} array - The array to shuffle.
* @return {array} The shuffled array.
*/
shuffle: function (array) {
for (var i = array.length - 1; i > 0; i--)
{
var j = Math.floor(Math.random() * (i + 1));
var temp = array[i];
array[i] = array[j];
array[j] = temp;
}
return array;
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},
/**
* Javascript string pad http://www.webtoolkit.info/.
* pad = the string to pad it out with (defaults to a space)
* dir = 1 (left), 2 (right), 3 (both)
* @method Phaser.Utils.pad
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* @param {string} str - The target string.
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* @param {number} len - The number of characters to be added.
* @param {number} pad - The string to pad it out with (defaults to a space).
* @param {number} [dir=3] The direction dir = 1 (left), 2 (right), 3 (both).
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* @return {string} The padded string
*/
pad: function (str, len, pad, dir) {
if (typeof(len) == "undefined") { var len = 0; }
if (typeof(pad) == "undefined") { var pad = ' '; }
if (typeof(dir) == "undefined") { var dir = 3; }
var padlen = 0;
if (len + 1 >= str.length)
{
switch (dir)
{
case 1:
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str = new Array(len + 1 - str.length).join(pad) + str;
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break;
case 3:
var right = Math.ceil((padlen = len - str.length) / 2);
var left = padlen - right;
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str = new Array(left+1).join(pad) + str + new Array(right+1).join(pad);
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break;
default:
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str = str + new Array(len + 1 - str.length).join(pad);
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break;
}
}
return str;
},
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/**
* This is a slightly modified version of jQuery.isPlainObject. A plain object is an object whose internal class property is [object Object].
* @method Phaser.Utils.isPlainObject
* @param {object} obj - The object to inspect.
* @return {boolean} - true if the object is plain, otherwise false.
*/
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isPlainObject: function (obj) {
// Not plain objects:
// - Any object or value whose internal [[Class]] property is not "[object Object]"
// - DOM nodes
// - window
if (typeof(obj) !== "object" || obj.nodeType || obj === obj.window)
{
return false;
}
// Support: Firefox < 20
// The try/catch suppresses exceptions thrown when attempting to access
// the "constructor" property of certain host objects, ie. |window.location|
// https://bugzilla.mozilla.org/show_bug.cgi?id=814622
try {
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if (obj.constructor & & !({}).hasOwnProperty.call(obj.constructor.prototype, "isPrototypeOf"))
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{
return false;
}
} catch (e) {
return false;
}
// If the function hasn't returned already, we're confident that
// |obj| is a plain object, created by {} or constructed with new Object
return true;
},
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/**
* This is a slightly modified version of http://api.jquery.com/jQuery.extend/
* @method Phaser.Utils.extend
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* @param {boolean} deep - Perform a deep copy?
* @param {object} target - The target object to copy to.
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* @return {object} The extended object.
*/
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extend: function () {
var options, name, src, copy, copyIsArray, clone,
target = arguments[0] || {},
i = 1,
length = arguments.length,
deep = false;
// Handle a deep copy situation
if (typeof target === "boolean")
{
deep = target;
target = arguments[1] || {};
// skip the boolean and the target
i = 2;
}
// extend Phaser if only one argument is passed
if (length === i)
{
target = this;
--i;
}
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for (; i < length; i++)
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{
// Only deal with non-null/undefined values
if ((options = arguments[i]) != null)
{
// Extend the base object
for (name in options)
{
src = target[name];
copy = options[name];
// Prevent never-ending loop
if (target === copy)
{
continue;
}
// Recurse if we're merging plain objects or arrays
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if (deep & & copy & & (Phaser.Utils.isPlainObject(copy) || (copyIsArray = Array.isArray(copy))))
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{
if (copyIsArray)
{
copyIsArray = false;
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clone = src & & Array.isArray(src) ? src : [];
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}
else
{
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clone = src & & Phaser.Utils.isPlainObject(src) ? src : {};
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}
// Never move original objects, clone them
target[name] = Phaser.Utils.extend(deep, clone, copy);
// Don't bring in undefined values
}
else if (copy !== undefined)
{
target[name] = copy;
}
}
}
}
// Return the modified object
return target;
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},
/**
* Mixes the source object into the destination object, returning the newly modified destination object.
* Based on original code by @mudcube
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*
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* @method Phaser.Utils.mixin
* @param {object} from - The object to copy (the source object).
* @param {object} to - The object to copy to (the destination object).
* @return {object} The modified destination object.
*/
mixin: function (from, to) {
if (!from || typeof (from) !== "object")
{
return to;
}
for (var key in from)
{
var o = from[key];
if (o.childNodes || o.cloneNode)
{
continue;
}
var type = typeof (from[key]);
if (!from[key] || type !== "object")
{
to[key] = from[key];
}
else
{
// Clone sub-object
if (typeof (to[key]) === type)
{
to[key] = Phaser.Utils.mixin(from[key], to[key]);
}
else
{
to[key] = Phaser.Utils.mixin(from[key], new o.constructor());
}
}
}
return to;
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}
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};
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/**
* A polyfill for Function.prototype.bind
*/
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if (typeof Function.prototype.bind != 'function') {
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/* jshint freeze: false */
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Function.prototype.bind = (function () {
var slice = Array.prototype.slice;
return function (thisArg) {
var target = this, boundArgs = slice.call(arguments, 1);
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if (typeof target != 'function')
{
throw new TypeError();
}
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function bound() {
var args = boundArgs.concat(slice.call(arguments));
target.apply(this instanceof bound ? this : thisArg, args);
}
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bound.prototype = (function F(proto) {
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if (proto)
{
F.prototype = proto;
}
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if (!(this instanceof F))
{
return new F;
}
})(target.prototype);
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return bound;
};
})();
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}
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/**
* A polyfill for Array.isArray
*/
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if (!Array.isArray)
{
Array.isArray = function (arg)
{
return Object.prototype.toString.call(arg) == '[object Array]';
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};
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}
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/**
* A polyfill for Array.forEach
* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
*/
if (!Array.prototype.forEach)
{
Array.prototype.forEach = function(fun /*, thisArg */)
{
"use strict";
if (this === void 0 || this === null)
{
throw new TypeError();
}
var t = Object(this);
var len = t.length >>> 0;
if (typeof fun !== "function")
{
throw new TypeError();
}
var thisArg = arguments.length >= 2 ? arguments[1] : void 0;
for (var i = 0; i < len; i++)
{
if (i in t)
{
fun.call(thisArg, t[i], i, t);
}
}
};
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}
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/**
* Low-budget Float32Array knock-off, suitable for use with P2.js in IE9
* Source: http://www.html5gamedevs.com/topic/5988-phaser-12-ie9/
* Cameron Foale (http://www.kibibu.com)
*/
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if (typeof window.Uint32Array !== "function" & & typeof window.Uint32Array !== "object")
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{
var CheapArray = function(type)
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{
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var proto = new Array(); // jshint ignore:line
window[type] = function(arg) {
if (typeof(arg) === "number")
{
Array.call(this, arg);
this.length = arg;
for (var i = 0; i < this.length; i++)
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{
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this[i] = 0;
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}
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}
else
{
Array.call(this, arg.length);
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this.length = arg.length;
for (var i = 0; i < this.length; i++)
{
this[i] = arg[i];
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}
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}
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};
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window[type].prototype = proto;
window[type].constructor = window[type];
};
CheapArray('Uint32Array'); // jshint ignore:line
CheapArray('Int16Array'); // jshint ignore:line
}
/**
* Also fix for the absent console in IE9
*/
if (!window.console)
{
window.console = {};
window.console.log = window.console.assert = function(){};
window.console.warn = window.console.assert = function(){};
}
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< / pre >
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< / article >
< / section >
< / div >
< div class = "clearfix" > < / div >
< footer >
< span class = "copyright" >
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Phaser Copyright © 2012-2014 Photon Storm Ltd.
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< / span >
< br / >
< 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 Oct 09 2014 16:09:44 GMT+0100 (BST) using the < a href = "https://github.com/terryweiss/docstrap" > DocStrap template< / a > .
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< script > Sunlight . highlightAll ( { lineNumbers : true , showMenu : true , enableDoclinks : true } ) ; < / script >
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$( function () {
$( "#toc" ).toc( {
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anchorName : function(i, heading, prefix) {
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return $(heading).attr("id") || ( prefix + i );
},
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selectors : "h1,h2,h3,h4",
showAndHide : false,
scrollTo : 60
} );
$( "#toc>ul" ).addClass( "nav nav-pills nav-stacked" );
$( "#main span[id^='toc']" ).addClass( "toc-shim" );
} );
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