phaser-multires

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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/loader/Loader.js</h1> <section> <article> <pre class="sunlight-highlight-javascript linenums">/* jshint wsh:true */ /** * @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 Loader handles loading all external content such as Images, Sounds, Texture Atlases and data files. * * The loader uses a combination of tag loading (eg. Image elements) and XHR and provides progress and completion callbacks. * * Parallel loading (see {@link #enableParallel}) is supported and enabled by default. * Load-before behavior of parallel resources is controlled by synchronization points as discussed in {@link #withSyncPoint}. * * Texture Atlases can be created with tools such as [Texture Packer](https://www.codeandweb.com/texturepacker/phaser) and * [Shoebox](http://renderhjs.net/shoebox/) * * @class Phaser.Loader * @param {Phaser.Game} game - A reference to the currently running game. */ Phaser.Loader = function (game) { /** * Local reference to game. * @property {Phaser.Game} game * @protected */ this.game = game; /** * Local reference to the Phaser.Cache. * @property {Phaser.Cache} cache * @protected */ this.cache = game.cache; /** * If true all calls to Loader.reset will be ignored. Useful if you need to create a load queue before swapping to a preloader state. * @property {boolean} resetLocked * @default */ this.resetLocked = false; /** * True if the Loader is in the process of loading the queue. * @property {boolean} isLoading * @default */ this.isLoading = false; /** * True if all assets in the queue have finished loading. * @property {boolean} hasLoaded * @default */ this.hasLoaded = false; /** * You can optionally link a progress sprite with {@link Phaser.Loader#setPreloadSprite setPreloadSprite}. * * This property is an object containing: sprite, rect, direction, width and height * * @property {?object} preloadSprite * @protected */ this.preloadSprite = null; /** * The crossOrigin value applied to loaded images. Very often this needs to be set to 'anonymous'. * @property {boolean|string} crossOrigin * @default */ this.crossOrigin = false; /** * If you want to append a URL before the path of any asset you can set this here. * Useful if allowing the asset base url to be configured outside of the game code. * The string _must_ end with a "/". * * @property {string} baseURL */ this.baseURL = ''; /** * The value of `path`, if set, is placed before any _relative_ file path given. For example: * * `load.path = "images/sprites/"; * load.image("ball", "ball.png"); * load.image("tree", "level1/oaktree.png"); * load.image("boom", "http://server.com/explode.png");` * * Would load the `ball` file from `images/sprites/ball.png` and the tree from * `images/sprites/level1/oaktree.png` but the file `boom` would load from the URL * given as it's an absolute URL. * * Please note that the path is added before the filename but *after* the baseURL (if set.) * * The string _must_ end with a "/". * * @property {string} path */ this.path = ''; /** * This event is dispatched when the loading process starts: before the first file has been requested, * but after all the initial packs have been loaded. * * @property {Phaser.Signal} onLoadStart */ this.onLoadStart = new Phaser.Signal(); /** * This event is dispatched when the final file in the load queue has either loaded or failed. * * @property {Phaser.Signal} onLoadComplete */ this.onLoadComplete = new Phaser.Signal(); /** * This event is dispatched when an asset pack has either loaded or failed to load. * * This is called when the asset pack manifest file has loaded and successfully added its contents to the loader queue. * * Params: `(pack key, success?, total packs loaded, total packs)` * * @property {Phaser.Signal} onPackComplete */ this.onPackComplete = new Phaser.Signal(); /** * This event is dispatched immediately before a file starts loading. * It's possible the file may fail (eg. download error, invalid format) after this event is sent. * * Params: `(progress, file key, file url)` * * @property {Phaser.Signal} onFileStart */ this.onFileStart = new Phaser.Signal(); /** * This event is dispatched when a file has either loaded or failed to load. * * Any function bound to this will receive the following parameters: * * progress, file key, success?, total loaded files, total files * * Where progress is a number between 1 and 100 (inclusive) representing the percentage of the load. * * @property {Phaser.Signal} onFileComplete */ this.onFileComplete = new Phaser.Signal(); /** * This event is dispatched when a file (or pack) errors as a result of the load request. * * For files it will be triggered before `onFileComplete`. For packs it will be triggered before `onPackComplete`. * * Params: `(file key, file)` * * @property {Phaser.Signal} onFileError */ this.onFileError = new Phaser.Signal(); /** * If true and if the browser supports XDomainRequest, it will be used in preference for XHR. * * This is only relevant for IE 9 and should _only_ be enabled for IE 9 clients when required by the server/CDN. * * @property {boolean} useXDomainRequest * @deprecated This is only relevant for IE 9. */ this.useXDomainRequest = false; /** * @private * @property {boolean} _warnedAboutXDomainRequest - Control number of warnings for using XDR outside of IE 9. */ this._warnedAboutXDomainRequest = false; /** * If true (the default) then parallel downloading will be enabled. * * To disable all parallel downloads this must be set to false prior to any resource being loaded. * * @property {boolean} enableParallel */ this.enableParallel = true; /** * The number of concurrent / parallel resources to try and fetch at once. * * Many current browsers limit 6 requests per domain; this is slightly conservative. * * @property {integer} maxParallelDownloads * @protected */ this.maxParallelDownloads = 4; /** * A counter: if more than zero, files will be automatically added as a synchronization point. * @property {integer} _withSyncPointDepth; */ this._withSyncPointDepth = 0; /** * Contains all the information for asset files (including packs) to load. * * File/assets are only removed from the list after all loading completes. * * @property {file[]} _fileList * @private */ this._fileList = []; /** * Inflight files (or packs) that are being fetched/processed. * * This means that if there are any files in the flight queue there should still be processing * going on; it should only be empty before or after loading. * * The files in the queue may have additional properties added to them, * including `requestObject` which is normally the associated XHR. * * @property {file[]} _flightQueue * @private */ this._flightQueue = []; /** * The offset into the fileList past all the complete (loaded or error) entries. * * @property {integer} _processingHead * @private */ this._processingHead = 0; /** * True when the first file (not pack) has loading started. * This used to to control dispatching `onLoadStart` which happens after any initial packs are loaded. * * @property {boolean} _initialPacksLoaded * @private */ this._fileLoadStarted = false; /** * Total packs seen - adjusted when a pack is added. * @property {integer} _totalPackCount * @private */ this._totalPackCount = 0; /** * Total files seen - adjusted when a file is added. * @property {integer} _totalFileCount * @private */ this._totalFileCount = 0; /** * Total packs loaded - adjusted just prior to `onPackComplete`. * @property {integer} _loadedPackCount * @private */ this._loadedPackCount = 0; /** * Total files loaded - adjusted just prior to `onFileComplete`. * @property {integer} _loadedFileCount * @private */ this._loadedFileCount = 0; }; /** * @constant * @type {number} */ Phaser.Loader.TEXTURE_ATLAS_JSON_ARRAY = 0; /** * @constant * @type {number} */ Phaser.Loader.TEXTURE_ATLAS_JSON_HASH = 1; /** * @constant * @type {number} */ Phaser.Loader.TEXTURE_ATLAS_XML_STARLING = 2; /** * @constant * @type {number} */ Phaser.Loader.PHYSICS_LIME_CORONA_JSON = 3; /** * @constant * @type {number} */ Phaser.Loader.PHYSICS_PHASER_JSON = 4; /** * @constant * @type {number} */ Phaser.Loader.TEXTURE_ATLAS_JSON_PYXEL = 5; Phaser.Loader.prototype = { /** * Set a Sprite to be a "preload" sprite by passing it to this method. * * A "preload" sprite will have its width or height crop adjusted based on the percentage of the loader in real-time. * This allows you to easily make loading bars for games. * * The sprite will automatically be made visible when calling this. * * @method Phaser.Loader#setPreloadSprite * @param {Phaser.Sprite|Phaser.Image} sprite - The sprite or image that will be cropped during the load. * @param {number} [direction=0] - A value of zero means the sprite will be cropped horizontally, a value of 1 means its will be cropped vertically. */ setPreloadSprite: function (sprite, direction) { direction = direction || 0; this.preloadSprite = { sprite: sprite, direction: direction, width: sprite.width, height: sprite.height, rect: null }; if (direction === 0) { // Horizontal rect this.preloadSprite.rect = new Phaser.Rectangle(0, 0, 1, sprite.height); } else { // Vertical rect this.preloadSprite.rect = new Phaser.Rectangle(0, 0, sprite.width, 1); } sprite.crop(this.preloadSprite.rect); sprite.visible = true; }, /** * Called automatically by ScaleManager when the game resizes in RESIZE scalemode. * * This can be used to adjust the preloading sprite size, eg. * * @method Phaser.Loader#resize * @protected */ resize: function () { if (this.preloadSprite && this.preloadSprite.height !== this.preloadSprite.sprite.height) { this.preloadSprite.rect.height = this.preloadSprite.sprite.height; } }, /** * Check whether a file/asset with a specific key is queued to be loaded. * * To access a loaded asset use Phaser.Cache, eg. {@link Phaser.Cache#checkImageKey} * * @method Phaser.Loader#checkKeyExists * @param {string} type - The type asset you want to check. * @param {string} key - Key of the asset you want to check. * @return {boolean} Return true if exists, otherwise return false. */ checkKeyExists: function (type, key) { return this.getAssetIndex(type, key) > -1; }, /** * Get the queue-index of the file/asset with a specific key. * * Only assets in the download file queue will be found. * * @method Phaser.Loader#getAssetIndex * @param {string} type - The type asset you want to check. * @param {string} key - Key of the asset you want to check. * @return {number} The index of this key in the filelist, or -1 if not found. * The index may change and should only be used immediately following this call */ getAssetIndex: function (type, key) { var bestFound = -1; for (var i = 0; i < this._fileList.length; i++) { var file = this._fileList[i]; if (file.type === type && file.key === key) { bestFound = i; // An already loaded/loading file may be superceded. if (!file.loaded && !file.loading) { break; } } } return bestFound; }, /** * Find a file/asset with a specific key. * * Only assets in the download file queue will be found. * * @method Phaser.Loader#getAsset * @param {string} type - The type asset you want to check. * @param {string} key - Key of the asset you want to check. * @return {any} Returns an object if found that has 2 properties: `index` and `file`; otherwise a non-true value is returned. * The index may change and should only be used immediately following this call. */ getAsset: function (type, key) { var fileIndex = this.getAssetIndex(type, key); if (fileIndex > -1) { return { index: fileIndex, file: this._fileList[fileIndex] }; } return false; }, /** * Reset the loader and clear any queued assets. If `Loader.resetLocked` is true this operation will abort. * * This will abort any loading and clear any queued assets. * * Optionally you can clear any associated events. * * @met