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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Phaser Source: loader/Cache.js</title>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/sunlight.default.css">
<link type="text/css" rel="stylesheet" href="styles/site.cerulean.css">
</head>
<body>
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<div class="navbar-inner">
<a class="brand" href="index.html">Phaser</a>
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class="caret"></b></a>
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<a href="Phaser.Loader.html">Loader</a>
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<a href="Phaser.Particles.Arcade.html">Arcade</a>
</li>
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<a href="Phaser.Particles.Arcade.Emitter.html">Emitter</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Physics.html">Physics</a>
</li>
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<a href="Phaser.Physics.Arcade.html">Arcade</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Arcade.Body.html">Body</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Physics.Ninja.html">Ninja</a>
</li>
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<a href="Phaser.Physics.Ninja.AABB.html">AABB</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Ninja.Body.html">Body</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Ninja.Circle.html">Circle</a>
</li>
<li class="class-depth-3">
<a href="Phaser.Physics.Ninja.Tile.html">Tile</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Physics.P2.html">P2</a>
</li>
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<a href="Phaser.Physics.P2.Body.html">Body</a>
</li>
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<a href="Phaser.Physics.P2.BodyDebug.html">BodyDebug</a>
</li>
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<a href="Phaser.Physics.P2.CollisionGroup.html">CollisionGroup</a>
</li>
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</li>
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<a href="Phaser.Physics.P2.Spring.html">Spring</a>
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<a href="Phaser.Plugin.html">Plugin</a>
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<a href="Phaser.PluginManager.html">PluginManager</a>
</li>
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<a href="Phaser.Point.html">Point</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Pointer.html">Pointer</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Polygon.html">Polygon</a>
</li>
<li class="class-depth-1">
<a href="Phaser.QuadTree.html">QuadTree</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RandomDataGenerator.html">RandomDataGenerator</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Rectangle.html">Rectangle</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RenderTexture.html">RenderTexture</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RequestAnimationFrame.html">RequestAnimationFrame</a>
</li>
<li class="class-depth-1">
<a href="Phaser.RetroFont.html">RetroFont</a>
</li>
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<a href="Phaser.Rope.html">Rope</a>
</li>
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<a href="Phaser.ScaleManager.html">ScaleManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Signal.html">Signal</a>
</li>
<li class="class-depth-1">
<a href="Phaser.SignalBinding.html">SignalBinding</a>
</li>
<li class="class-depth-1">
<a href="Phaser.SinglePad.html">SinglePad</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Sound.html">Sound</a>
</li>
<li class="class-depth-1">
<a href="Phaser.SoundManager.html">SoundManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Sprite.html">Sprite</a>
</li>
<li class="class-depth-1">
<a href="Phaser.SpriteBatch.html">SpriteBatch</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Stage.html">Stage</a>
</li>
<li class="class-depth-1">
<a href="Phaser.State.html">State</a>
</li>
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<a href="Phaser.StateManager.html">StateManager</a>
</li>
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<a href="Phaser.Text.html">Text</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Tile.html">Tile</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Tilemap.html">Tilemap</a>
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<a href="Phaser.TilemapLayer.html">TilemapLayer</a>
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<a href="Phaser.TilemapParser.html">TilemapParser</a>
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<a href="Phaser.Tileset.html">Tileset</a>
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<a href="Phaser.TileSprite.html">TileSprite</a>
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<a href="Phaser.Time.html">Time</a>
</li>
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<a href="Phaser.Timer.html">Timer</a>
</li>
<li class="class-depth-1">
<a href="Phaser.TimerEvent.html">TimerEvent</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Touch.html">Touch</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Tween.html">Tween</a>
</li>
<li class="class-depth-1">
<a href="Phaser.TweenManager.html">TweenManager</a>
</li>
<li class="class-depth-1">
<a href="Phaser.Utils.html">Utils</a>
</li>
<li class="class-depth-2">
<a href="Phaser.Utils.Debug.html">Debug</a>
</li>
<li class="class-depth-1">
<a href="Phaser.World.html">World</a>
</li>
</ul>
</li>
</ul>
</div>
</div>
<div class="row-fluid">
<div class="span12">
<div id="main">
<h1 class="page-title">Source: loader/Cache.js</h1>
<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* A game only has one instance of a Cache and it is used to store all externally loaded assets such as images, sounds
* and data files as a result of Loader calls. Cached items use string based keys for look-up.
*
* @class Phaser.Cache
* @constructor
* @param {Phaser.Game} game - A reference to the currently running game.
*/
Phaser.Cache = function (game) {
/**
* @property {Phaser.Game} game - Local reference to game.
*/
this.game = game;
/**
* @property {object} _canvases - Canvas key-value container.
* @private
*/
this._canvases = {};
/**
* @property {object} _images - Image key-value container.
* @private
*/
this._images = {};
/**
* @property {object} _textures - RenderTexture key-value container.
* @private
*/
this._textures = {};
/**
* @property {object} _sounds - Sound key-value container.
* @private
*/
this._sounds = {};
/**
* @property {object} _text - Text key-value container.
* @private
*/
this._text = {};
/**
* @property {object} _json - JSOIN key-value container.
* @private
*/
this._json = {};
/**
* @property {object} _xml - XML key-value container.
* @private
*/
this._xml = {};
/**
* @property {object} _physics - Physics data key-value container.
* @private
*/
this._physics = {};
/**
* @property {object} _tilemaps - Tilemap key-value container.
* @private
*/
this._tilemaps = {};
/**
* @property {object} _binary - Binary file key-value container.
* @private
*/
this._binary = {};
/**
* @property {object} _bitmapDatas - BitmapData key-value container.
* @private
*/
this._bitmapDatas = {};
/**
* @property {object} _bitmapFont - BitmapFont key-value container.
* @private
*/
this._bitmapFont = {};
/**
* @property {object} _urlMap - Maps URLs to resources.
* @private
*/
this._urlMap = {};
/**
* @property {Image} _urlResolver - Used to resolve URLs to the absolute path.
* @private
*/
this._urlResolver = new Image();
/**
* @property {string} _urlTemp - Temporary variable to hold a resolved url.
* @private
*/
this._urlTemp = null;
this.addDefaultImage();
this.addMissingImage();
/**
* @property {Phaser.Signal} onSoundUnlock - This event is dispatched when the sound system is unlocked via a touch event on cellular devices.
*/
this.onSoundUnlock = new Phaser.Signal();
/**
* @property {array} _cacheMap - Const to cache object look-up array.
*/
this._cacheMap = [];
this._cacheMap[Phaser.Cache.CANVAS] = this._canvases;
this._cacheMap[Phaser.Cache.IMAGE] = this._images;
this._cacheMap[Phaser.Cache.TEXTURE] = this._textures;
this._cacheMap[Phaser.Cache.SOUND] = this._sounds;
this._cacheMap[Phaser.Cache.TEXT] = this._text;
this._cacheMap[Phaser.Cache.PHYSICS] = this._physics;
this._cacheMap[Phaser.Cache.TILEMAP] = this._tilemaps;
this._cacheMap[Phaser.Cache.BINARY] = this._binary;
this._cacheMap[Phaser.Cache.BITMAPDATA] = this._bitmapDatas;
this._cacheMap[Phaser.Cache.BITMAPFONT] = this._bitmapFont;
this._cacheMap[Phaser.Cache.JSON] = this._json;
this._cacheMap[Phaser.Cache.XML] = this._xml;
};
/**
* @constant
* @type {number}
*/
Phaser.Cache.CANVAS = 1;
/**
* @constant
* @type {number}
*/
Phaser.Cache.IMAGE = 2;
/**
* @constant
* @type {number}
*/
Phaser.Cache.TEXTURE = 3;
/**
* @constant
* @type {number}
*/
Phaser.Cache.SOUND = 4;
/**
* @constant
* @type {number}
*/
Phaser.Cache.TEXT = 5;
/**
* @constant
* @type {number}
*/
Phaser.Cache.PHYSICS = 6;
/**
* @constant
* @type {number}
*/
Phaser.Cache.TILEMAP = 7;
/**
* @constant
* @type {number}
*/
Phaser.Cache.BINARY = 8;
/**
* @constant
* @type {number}
*/
Phaser.Cache.BITMAPDATA = 9;
/**
* @constant
* @type {number}
*/
Phaser.Cache.BITMAPFONT = 10;
/**
* @constant
* @type {number}
*/
Phaser.Cache.JSON = 11;
/**
* @constant
* @type {number}
*/
Phaser.Cache.XML = 12;
Phaser.Cache.prototype = {
/**
* Add a new canvas object in to the cache.
*
* @method Phaser.Cache#addCanvas
* @param {string} key - Asset key for this canvas.
* @param {HTMLCanvasElement} canvas - Canvas DOM element.
* @param {CanvasRenderingContext2D} context - Render context of this canvas.
*/
addCanvas: function (key, canvas, context) {
this._canvases[key] = { canvas: canvas, context: context };
},
/**
* Add a binary object in to the cache.
*
* @method Phaser.Cache#addBinary
* @param {string} key - Asset key for this binary data.
* @param {object} binaryData - The binary object to be addded to the cache.
*/
addBinary: function (key, binaryData) {
this._binary[key] = binaryData;
},
/**
* Add a BitmapData object in to the cache.
*
* @method Phaser.Cache#addBitmapData
* @param {string} key - Asset key for this BitmapData.
* @param {Phaser.BitmapData} bitmapData - The BitmapData object to be addded to the cache.
* @param {Phaser.FrameData} [frameData] - Optional FrameData set associated with the given BitmapData.
* @return {Phaser.BitmapData} The BitmapData object to be addded to the cache.
*/
addBitmapData: function (key, bitmapData, frameData) {
bitmapData.key = key;
this._bitmapDatas[key] = { data: bitmapData, frameData: frameData };
return bitmapData;
},
/**
* Add a new Phaser.RenderTexture in to the cache.
*
* @method Phaser.Cache#addRenderTexture
* @param {string} key - The unique key by which you will reference this object.
* @param {Phaser.Texture} texture - The texture to use as the base of the RenderTexture.
*/
addRenderTexture: function (key, texture) {
var frame = new Phaser.Frame(0, 0, 0, texture.width, texture.height, '', '');
this._textures[key] = { texture: texture, frame: frame };
},
/**
* Add a new sprite sheet in to the cache.
*
* @method Phaser.Cache#addSpriteSheet
* @param {string} key - The unique key by which you will reference this object.
* @param {string} url - URL of this sprite sheet file.
* @param {object} data - Extra sprite sheet data.
* @param {number} frameWidth - Width of the sprite sheet.
* @param {number} frameHeight - Height of the sprite sheet.
* @param {number} [frameMax=-1] - How many frames stored in the sprite sheet. If -1 then it divides the whole sheet evenly.
* @param {number} [margin=0] - If the frames have been drawn with a margin, specify the amount here.
* @param {number} [spacing=0] - If the frames have been drawn with spacing between them, specify the amount here.
*/
addSpriteSheet: function (key, url, data, frameWidth, frameHeight, frameMax, margin, spacing) {
this._images[key] = { url: url, data: data, frameWidth: frameWidth, frameHeight: frameHeight, margin: margin, spacing: spacing };
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
PIXI.TextureCache[key] = new PIXI.Texture(PIXI.BaseTextureCache[key]);
this._images[key].frameData = Phaser.AnimationParser.spriteSheet(this.game, key, frameWidth, frameHeight, frameMax, margin, spacing);
this._urlMap[this._resolveUrl(url)] = this._images[key];
},
/**
* Add a new tilemap to the Cache.
*
* @method Phaser.Cache#addTilemap
* @param {string} key - The unique key by which you will reference this object.
* @param {string} url - URL of the tilemap image.
* @param {object} mapData - The tilemap data object (either a CSV or JSON file).
* @param {number} format - The format of the tilemap data.
*/
addTilemap: function (key, url, mapData, format) {
this._tilemaps[key] = { url: url, data: mapData, format: format };
this._urlMap[this._resolveUrl(url)] = this._tilemaps[key];
},
/**
* Add a new texture atlas to the Cache.
*
* @method Phaser.Cache#addTextureAtlas
* @param {string} key - The unique key by which you will reference this object.
* @param {string} url - URL of this texture atlas file.
* @param {object} data - Extra texture atlas data.
* @param {object} atlasData - Texture atlas frames data.
* @param {number} format - The format of the texture atlas.
*/
addTextureAtlas: function (key, url, data, atlasData, format) {
this._images[key] = { url: url, data: data };
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
PIXI.TextureCache[key] = new PIXI.Texture(PIXI.BaseTextureCache[key]);
if (format == Phaser.Loader.TEXTURE_ATLAS_JSON_ARRAY)
{
this._images[key].frameData = Phaser.AnimationParser.JSONData(this.game, atlasData, key);
}
else if (format == Phaser.Loader.TEXTURE_ATLAS_JSON_HASH)
{
this._images[key].frameData = Phaser.AnimationParser.JSONDataHash(this.game, atlasData, key);
}
else if (format == Phaser.Loader.TEXTURE_ATLAS_XML_STARLING)
{
this._images[key].frameData = Phaser.AnimationParser.XMLData(this.game, atlasData, key);
}
this._urlMap[this._resolveUrl(url)] = this._images[key];
},
/**
* Add a new Bitmap Font to the Cache.
*
* @method Phaser.Cache#addBitmapFont
* @param {string} key - The unique key by which you will reference this object.
* @param {string} url - URL of this font xml file.
* @param {object} data - Extra font data.
* @param {object} xmlData - Texture atlas frames data.
* @param {number} [xSpacing=0] - If you'd like to add additional horizontal spacing between the characters then set the pixel value here.
* @param {number} [ySpacing=0] - If you'd like to add additional vertical spacing between the lines then set the pixel value here.
*/
addBitmapFont: function (key, url, data, xmlData, xSpacing, ySpacing) {
this._images[key] = { url: url, data: data };
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
PIXI.TextureCache[key] = new PIXI.Texture(PIXI.BaseTextureCache[key]);
Phaser.LoaderParser.bitmapFont(this.game, xmlData, key, xSpacing, ySpacing);
this._bitmapFont[key] = PIXI.BitmapText.fonts[key];
this._urlMap[this._resolveUrl(url)] = this._bitmapFont[key];
},
/**
* Add a new physics data object to the Cache.
*
* @method Phaser.Cache#addTilemap
* @param {string} key - The unique key by which you will reference this object.
* @param {string} url - URL of the physics json data.
* @param {object} JSONData - The physics data object (a JSON file).
* @param {number} format - The format of the physics data.
*/
addPhysicsData: function (key, url, JSONData, format) {
this._physics[key] = { url: url, data: JSONData, format: format };
this._urlMap[this._resolveUrl(url)] = this._physics[key];
},
/**
* Adds a default image to be used in special cases such as WebGL Filters. Is mapped to the key __default.
*
* @method Phaser.Cache#addDefaultImage
* @protected
*/
addDefaultImage: function () {
var img = new Image();
img.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgAQMAAABJtOi3AAAAA1BMVEX///+nxBvIAAAAAXRSTlMAQObYZgAAABVJREFUeF7NwIEAAAAAgKD9qdeocAMAoAABm3DkcAAAAABJRU5ErkJggg==";
this._images['__default'] = { url: null, data: img };
this._images['__default'].frame = new Phaser.Frame(0, 0, 0, 32, 32, '', '');
this._images['__default'].frameData = new Phaser.FrameData();
this._images['__default'].frameData.addFrame(new Phaser.Frame(0, 0, 0, 32, 32, null, this.game.rnd.uuid()));
PIXI.BaseTextureCache['__default'] = new PIXI.BaseTexture(img);
PIXI.TextureCache['__default'] = new PIXI.Texture(PIXI.BaseTextureCache['__default']);
},
/**
* Adds an image to be used when a key is wrong / missing. Is mapped to the key __missing.
*
* @method Phaser.Cache#addMissingImage
* @protected
*/
addMissingImage: function () {
var img = new Image();
img.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAIAAAD8GO2jAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAJ9JREFUeNq01ssOwyAMRFG46v//Mt1ESmgh+DFmE2GPOBARKb2NVjo+17PXLD8a1+pl5+A+wSgFygymWYHBb0FtsKhJDdZlncG2IzJ4ayoMDv20wTmSMzClEgbWYNTAkQ0Z+OJ+A/eWnAaR9+oxCF4Os0H8htsMUp+pwcgBBiMNnAwF8GqIgL2hAzaGFFgZauDPKABmowZ4GL369/0rwACp2yA/ttmvsQAAAABJRU5ErkJggg==";
this._images['__missing'] = { url: null, data: img };
this._images['__missing'].frame = new Phaser.Frame(0, 0, 0, 32, 32, '', '');
this._images['__missing'].frameData = new Phaser.FrameData();
this._images['__missing'].frameData.addFrame(new Phaser.Frame(0, 0, 0, 32, 32, null, this.game.rnd.uuid()));
PIXI.BaseTextureCache['__missing'] = new PIXI.BaseTexture(img);
PIXI.TextureCache['__missing'] = new PIXI.Texture(PIXI.BaseTextureCache['__missing']);
},
/**
* Add a new text data.
*
* @method Phaser.Cache#addText
* @param {string} key - Asset key for the text data.
* @param {string} url - URL of this text data file.
* @param {object} data - Extra text data.
*/
addText: function (key, url, data) {
this._text[key] = { url: url, data: data };
this._urlMap[this._resolveUrl(url)] = this._text[key];
},
/**
* Add a new json object into the cache.