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<!DOCTYPE html>
<html lang="en">
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<meta charset="utf-8">
<title>Phaser Source: loader/Cache.js</title>
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<h1 class="page-title">Source: loader/Cache.js</h1>
<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2013 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. Cache 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} _tilemaps - Tilemap key-value container.
* @private
*/
this._tilemaps = {};
/**
* @property {object} _tilesets - Tileset key-value container.
* @private
*/
this._tilesets = {};
/**
* @property {object} _bitmapDatas - BitmapData key-value container.
* @private
*/
this._bitmapDatas = {};
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();
};
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 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 - How many frames stored in the sprite sheet.
*/
addSpriteSheet: function (key, url, data, frameWidth, frameHeight, frameMax) {
this._images[key] = { url: url, data: data, spriteSheet: true, frameWidth: frameWidth, frameHeight: frameHeight };
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);
},
/**
* Add a new tile set in to the cache.
*
* @method Phaser.Cache#addTileset
* @param {string} key - The unique key by which you will reference this object.
* @param {string} url - URL of this tile set file.
* @param {object} data - Extra tile set data.
* @param {number} tileWidth - Width of the sprite sheet.
* @param {number} tileHeight - Height of the sprite sheet.
* @param {number} tileMax - How many tiles stored in the sprite sheet.
* @param {number} [tileMargin=0] - If the tiles have been drawn with a margin, specify the amount here.
* @param {number} [tileSpacing=0] - If the tiles have been drawn with spacing between them, specify the amount here.
*/
addTileset: function (key, url, data, tileWidth, tileHeight, tileMax, tileMargin, tileSpacing) {
this._tilesets[key] = { url: url, data: data, tileWidth: tileWidth, tileHeight: tileHeight, tileMargin: tileMargin, tileSpacing: tileSpacing };
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
PIXI.TextureCache[key] = new PIXI.Texture(PIXI.BaseTextureCache[key]);
this._tilesets[key].tileData = Phaser.TilemapParser.tileset(this.game, key, tileWidth, tileHeight, tileMax, tileMargin, tileSpacing);
},
/**
* Add a new tilemap.
*
* @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.
* @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._tilemaps[key].layers = Phaser.TilemapParser.parse(this.game, mapData, format);
},
/**
* Add a new texture atlas.
*
* @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);
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);
}
},
/**
* Add a new Bitmap Font.
*
* @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 xmlData {object} Texture atlas frames data.
*/
addBitmapFont: function (key, url, data, xmlData) {
this._images[key] = { url: url, data: data, spriteSheet: true };
PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
PIXI.TextureCache[key] = new PIXI.Texture(PIXI.BaseTextureCache[key]);
Phaser.LoaderParser.bitmapFont(this.game, xmlData, key);
// this._images[key].frameData = Phaser.AnimationParser.XMLData(this.game, xmlData, 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
*/
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
*/
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 image.
*
* @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);
PIXI.TextureCache[key] = new PIXI.Texture(PIXI.BaseTextureCache[key]);
},
/**
* Add a new sound.
*
* @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 };
},
/**
* Reload a sound.
* @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();
}
},
/**
* Description.
* @method Phaser.Cache#reloadSoundComplete
* @param {string} key - Asset key for the sound.
*/
reloadSoundComplete: function (key) {
if (this._sounds[key])
{
this._sounds[key].locked = false;
this.onSoundUnlock.dispatch(key);
}
},
/**
* Description.
* @method Phaser.Cache#updateSound
* @param {string} key - Asset key for the sound.
*/
updateSound: function (key, property, value) {
if (this._sounds[key])
{
this._sounds[key][property] = value;
}
},
/**
* Add a new decoded sound.
*
* @method Phaser.Cache#decodedSound
* @param {string} key - Asset key for the sound.
* @param {object} data - Extra sound data.
*/
decodedSound: function (key, data) {
this._sounds[key].data = data;
this._sounds[key].decoded = true;
this._sounds[key].isDecoding = false;
},
/**
* Get a canvas object from the cache by its key.
*
* @method Phaser.Cache#getCanvas
* @param {string} key - Asset key of the canvas you want.
* @return {object} The canvas you want.
*/
getCanvas: function (key) {
if (this._canvases[key])
{
return this._canvases[key].canvas;
}
return null;
},
/**
* Get a BitmapData object from the cache by its key.
*
* @method Phaser.Cache#getBitmapData
* @param {string} key - Asset key of the BitmapData object you want.
* @return {Phaser.BitmapData} The requested BitmapData object if found, or null if not.
*/
getBitmapData: function (key) {
if (this._bitmapDatas[key])
{
return this._bitmapDatas[key];
}
return null;
},
/**
* Checks if an image key exists.
*
* @method Phaser.Cache#checkImageKey
* @param {string} key - Asset key of the image you want.
* @return {boolean} True if the key exists, otherwise false.
*/
checkImageKey: function (key) {
if (this._images[key])
{
return true;
}
return false;
},
/**
* Get image data by key.
*
* @method Phaser.Cache#getImage
* @param {string} key - Asset key of the image you want.
* @return {object} The image data you want.
*/
getImage: function (key) {
if (this._images[key])
{
return this._images[key].data;
}
return null;
},
/**
* Get tile set image data by key.
*
* @method Phaser.Cache#getTileSetImage
* @param {string} key - Asset key of the image you want.
* @return {object} The image data you want.
*/
getTilesetImage: function (key) {
if (this._tilesets[key])
{
return this._tilesets[key].data;
}
return null;
},
/**
* Get tile set image data by key.
*
* @method Phaser.Cache#getTileset
* @param {string} key - Asset key of the image you want.
* @return {Phaser.Tileset} The tileset data. The tileset image is in the data property, the tile data in tileData.
*/
getTileset: function (key) {
if (this._tilesets[key])
{
return this._tilesets[key].tileData;
}
return null;
},
/**
* Get tilemap data by key.
*
* @method Phaser.Cache#getTilemap
* @param {string} key - Asset key of the tilemap you want.
* @return {Object} The tilemap data. The tileset image is in the data property, the map data in mapData.
*/
getTilemapData: function (key) {
if (this._tilemaps[key])
{
return this._tilemaps[key];
}
return null;
},
/**
* Get frame data by key.
*
* @method Phaser.Cache#getFrameData
* @param {string} key - Asset key of the frame data you want.
* @return {Phaser.FrameData} The frame data you want.
*/
getFrameData: function (key) {
if (this._images[key] && this._images[key].frameData)
{
return this._images[key].frameData;
}
return null;
},
/**
* Get a single frame out of a frameData set by key.
*
* @method Phaser.Cache#getFrameByIndex
* @param {string} key - Asset key of the frame data you want.
* @return {Phaser.Frame} The frame data you want.
*/
getFrameByIndex: function (key, frame) {
if (this._images[key] && this._images[key].frameData)
{
return this._images[key].frameData.getFrame(frame);
}
return null;
},
/**
* Get a single frame out of a frameData set by key.
*
* @method Phaser.Cache#getFrameByName
* @param {string} key - Asset key of the frame data you want.
* @return {Phaser.Frame} The frame data you want.
*/
getFrameByName: function (key, frame) {
if (this._images[key] && this._images[key].frameData)
{
return this._images[key].frameData.getFrameByName(frame);
}