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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]-->
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<h1 class="page-title">Source: loader/Cache.js</h1>
<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey <[email protected]>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Phaser.Cache constructor.
*
* @class Phaser.Cache
* @classdesc 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.
* @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} game - 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} _text - Text key-value container.
* @private
*/
this._json = {};
/**
* @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 = {};
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;
};
/**
* @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;
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.
* @return {Phaser.BitmapData} The BitmapData object to be addded to the cache.
*/
addBitmapData: function (key, bitmapData) {
this._bitmapDatas[key] = bitmapData;
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, spriteSheet: true, frameWidth: frameWidth, frameHeight: frameHeight, margin: margin, spacing: spacing };
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
this._images[key].frameData = Phaser.AnimationParser.spriteSheet(this.game, key, frameWidth, frameHeight, frameMax, margin, spacing);
},
/**
* 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 };
},
/**
* 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, spriteSheet: true };
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
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);
}
},
/**
* 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, spriteSheet: true };
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
Phaser.LoaderParser.bitmapFont(this.game, xmlData, key, xSpacing, ySpacing);
},
/**
* 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 };
},
/**
* 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, spriteSheet: false };
this._images['__default'].frame = new Phaser.Frame(0, 0, 0, 32, 32, '', '');
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, spriteSheet: false };
this._images['__missing'].frame = new Phaser.Frame(0, 0, 0, 32, 32, '', '');
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 };
},
/**
* Add a new json object into the cache.
*
* @method Phaser.Cache#addJSON
* @param {string} key - Asset key for the text data.
* @param {string} url - URL of this text data file.
* @param {object} data - Extra text data.
*/
addJSON: function (key, url, data) {
this._json[key] = { url: url, data: data };
},
/**
* Adds an Image file into the Cache. The file must have already been loaded, typically via Phaser.Loader.
*
* @method Phaser.Cache#addImage
* @param {string} key - The unique key by which you will reference this object.
* @param {string} url - URL of this image file.
* @param {object} data - Extra image data.
*/
addImage: function (key, url, data) {
this._images[key] = { url: url, data: data, spriteSheet: false };
this._images[key].frame = new Phaser.Frame(0, 0, 0, data.width, data.height, key, this.game.rnd.uuid());
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
},
/**
* Adds a Sound file into the Cache. The file must have already been loaded, typically via Phaser.Loader.
*
* @method Phaser.Cache#addSound
* @param {string} key - Asset key for the sound.
* @param {string} url - URL of this sound file.
* @param {object} data - Extra sound data.
* @param {boolean} webAudio - True if the file is using web audio.
* @param {boolean} audioTag - True if the file is using legacy HTML audio.
*/
addSound: function (key, url, data, webAudio, audioTag) {
webAudio = webAudio || true;
audioTag = audioTag || false;
var decoded = false;
if (audioTag)
{
decoded = true;
}
this._sounds[key] = { url: url, data: data, isDecoding: false, decoded: decoded, webAudio: webAudio, audioTag: audioTag, locked: this.game.sound.touchLocked };
},
/**
* Reload a Sound file from the server.
*
* @method Phaser.Cache#reloadSound
* @param {string} key - Asset key for the sound.
*/
reloadSound: function (key) {
var _this = this;
if (this._sounds[key])
{
this._sounds[key].data.src = this._sounds[key].url;
this._sounds[key].data.addEventListener('canplaythrough', function () {
return _this.reloadSoundComplete(key);
}, false);
this._sounds[key].data.load();
}
},
/**