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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>
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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}
*/
/**
* Phaser.Cache constructor.
*
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* @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.
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* @constructor
* @param {Phaser.Game} game - A reference to the currently running game.
*/
Phaser.Cache = function (game) {
/**
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* @property {Phaser.Game} game - Local reference to game.
*/
this.game = game;
/**
* @property {object} game - Canvas key-value container.
* @private
*/
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this._canvases = {};
/**
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* @property {object} _images - Image key-value container.
* @private
*/
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this._images = {};
/**
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* @property {object} _textures - RenderTexture key-value container.
* @private
*/
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this._textures = {};
/**
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* @property {object} _sounds - Sound key-value container.
* @private
*/
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this._sounds = {};
/**
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* @property {object} _text - Text key-value container.
* @private
*/
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this._text = {};
/**
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* @property {object} _tilemaps - Tilemap key-value container.
* @private
*/
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this._tilemaps = {};
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/**
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* @property {object} _binary - Binary file key-value container.
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* @private
*/
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this._binary = {};
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/**
* @property {object} _bitmapDatas - BitmapData key-value container.
* @private
*/
this._bitmapDatas = {};
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this.addDefaultImage();
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this.addMissingImage();
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/**
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* @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();
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};
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 };
},
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/**
* 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;
},
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/**
* 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;
},
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/**
* 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.
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* @param {Phaser.Texture} texture - The texture to use as the base of the RenderTexture.
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*/
addRenderTexture: function (key, texture) {
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var frame = new Phaser.Frame(0, 0, 0, texture.width, texture.height, '', '');
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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.
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* @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.
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*/
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addSpriteSheet: function (key, url, data, frameWidth, frameHeight, frameMax, margin, spacing) {
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this._images[key] = { url: url, data: data, spriteSheet: true, frameWidth: frameWidth, frameHeight: frameHeight, margin: margin, spacing: spacing };
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PIXI.BaseTextureCache[key] = new PIXI.BaseTexture(data);
PIXI.TextureCache[key] = new PIXI.Texture(PIXI.BaseTextureCache[key]);
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this._images[key].frameData = Phaser.AnimationParser.spriteSheet(this.game, key, frameWidth, frameHeight, frameMax, margin, spacing);
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},
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/**
* 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.
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* @param {object} mapData - The tilemap data object (either a CSV or JSON file).
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* @param {number} format - The format of the tilemap data.
*/
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addTilemap: function (key, url, mapData, format) {
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this._tilemaps[key] = { url: url, data: mapData, format: format };
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},
/**
* 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)
{
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this._images[key].frameData = Phaser.AnimationParser.JSONData(this.game, atlasData, key);
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}
else if (format == Phaser.Loader.TEXTURE_ATLAS_JSON_HASH)
{
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this._images[key].frameData = Phaser.AnimationParser.JSONDataHash(this.game, atlasData, key);
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}
else if (format == Phaser.Loader.TEXTURE_ATLAS_XML_STARLING)
{
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this._images[key].frameData = Phaser.AnimationParser.XMLData(this.game, atlasData, key);
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}
},
/**
* 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]);
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Phaser.LoaderParser.bitmapFont(this.game, xmlData, key);
// this._images[key].frameData = Phaser.AnimationParser.XMLData(this.game, xmlData, key);
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},
/**
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* Adds a default image to be used in special cases such as WebGL Filters. Is mapped to the key __default.
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*
* @method Phaser.Cache#addDefaultImage
*/
addDefaultImage: function () {
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var img = new Image();
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img.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgAQMAAABJtOi3AAAAA1BMVEX///+nxBvIAAAAAXRSTlMAQObYZgAAABVJREFUeF7NwIEAAAAAgKD9qdeocAMAoAABm3DkcAAAAABJRU5ErkJggg==";
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this._images['__default'] = { url: null, data: img, spriteSheet: false };
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this._images['__default'].frame = new Phaser.Frame(0, 0, 0, 32, 32, '', '');
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PIXI.BaseTextureCache['__default'] = new PIXI.BaseTexture(img);
PIXI.TextureCache['__default'] = new PIXI.Texture(PIXI.BaseTextureCache['__default']);
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},
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/**
* 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']);
},
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/**
* 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.
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*/
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addText: function (key, url, data) {
this._text[key] = {
url: url,
data: data
};
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},
/**
* 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 };
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this._images[key].frame = new Phaser.Frame(0, 0, 0, data.width, data.height, key, this.game.rnd.uuid());
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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;
}
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this._sounds[key] = { url: url, data: data, isDecoding: false, decoded: decoded, webAudio: webAudio, audioTag: audioTag, locked: this.game.sound.touchLocked };
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},
/**
* Reload a sound.
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*
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* @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();
}
},
/**
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* Fires the onSoundUnlock event when the sound has completed reloading.
*
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* @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);
}
},
/**
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* Updates the sound object in the cache.
*
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* @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;
}
},
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/**
* Add a new decoded sound.
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*
* @method Phaser.Cache#decodedSound
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* @param {string} key - Asset key for the sound.
* @param {object} data - Extra sound data.
*/
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decodedSound: function (key, data) {
this._sounds[key].data = data;
this._sounds[key].decoded = true;
this._sounds[key].isDecoding = false;
},
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/**
* Get a canvas object from the cache by its key.
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*
* @method Phaser.Cache#getCanvas
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* @param {string} key - Asset key of the canvas to retrieve from the Cache.
* @return {object} The canvas object.
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*/
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getCanvas: function (key) {
if (this._canvases[key])
{
return this._canvases[key].canvas;
}
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else
{
console.warn('Phaser.Cache.getCanvas: Invalid key: "' + key + '"');
}
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},
/**
* Get a BitmapData object from the cache by its key.
*
* @method Phaser.Cache#getBitmapData
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* @param {string} key - Asset key of the BitmapData object to retrieve from the Cache.
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* @return {Phaser.BitmapData} The requested BitmapData object if found, or null if not.
*/
getBitmapData: function (key) {
if (this._bitmapDatas[key])
{
return this._bitmapDatas[key];
}
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else
{
console.warn('Phaser.Cache.getBitmapData: Invalid key: "' + key + '"');
}
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},
/**
* Checks if an image key exists.
*
* @method Phaser.Cache#checkImageKey
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* @param {string} key - Asset key of the image to check is in the Cache.
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* @return {boolean} True if the key exists, otherwise false.
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*/
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checkImageKey: function (key) {
if (this._images[key])
{
return true;
}
return false;
},
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/**
* Get image data by key.
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*
* @method Phaser.Cache#getImage
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* @param {string} key - Asset key of the image to retrieve from the Cache.
* @return {object} The image data.
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*/
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getImage: function (key) {
if (this._images[key])
{
return this._images[key].data;
}
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else
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{
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console.warn('Phaser.Cache.getImage: Invalid key: "' + key + '"');
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}
},
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/**
* Get tilemap data by key.
*
* @method Phaser.Cache#getTilemap
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* @param {string} key - Asset key of the tilemap data to retrieve from the Cache.
* @return {Object} The raw tilemap data in CSV or JSON format.
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*/
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getTilemapData: function (key) {
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if (this._tilemaps[key])
{
return this._tilemaps[key];
}
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else
{
console.warn('Phaser.Cache.getTilemapData: Invalid key: "' + key + '"');
}
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},
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/**
* Get frame data by key.
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*
* @method Phaser.Cache#getFrameData
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* @param {string} key - Asset key of the frame data to retrieve from the Cache.
* @return {Phaser.FrameData} The frame data.
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*/
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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
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* @param {string} key - Asset key of the frame data to retrieve from the Cache.
* @return {Phaser.Frame} The frame object.
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*/
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
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* @param {string} key - Asset key of the frame data to retrieve from the Cache.
* @return {Phaser.Frame} The frame object.
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*/
getFrameByName: function (key, frame) {
if (this._images[key] & & this._images[key].frameData)
{
return this._images[key].frameData.getFrameByName(frame);
}
return null;
},
/**
* Get a single frame by key. You'd only do this to get the default Frame created for a non-atlas/spritesheet image.
*
* @method Phaser.Cache#getFrame
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* @param {string} key - Asset key of the frame data to retrieve from the Cache.
* @return {Phaser.Frame} The frame data.
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*/
getFrame: function (key) {
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if (this._images[key] & & this._images[key].spriteSheet === false)
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{
return this._images[key].frame;
}
return null;
},
/**
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* Get a single texture frame by key. You'd only do this to get the default Frame created for a non-atlas/spritesheet image.
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*
* @method Phaser.Cache#getTextureFrame
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* @param {string} key - Asset key of the frame to retrieve from the Cache.
* @return {Phaser.Frame} The frame data.
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*/
getTextureFrame: function (key) {
if (this._textures[key])
{
return this._textures[key].frame;
}
return null;
},
/**
* Get a RenderTexture by key.
*
* @method Phaser.Cache#getTexture
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* @param {string} key - Asset key of the RenderTexture to retrieve from the Cache.
* @return {Phaser.RenderTexture} The RenderTexture object.
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*/
getTexture: function (key) {
if (this._textures[key])
{
return this._textures[key];
}
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else
{
console.warn('Phaser.Cache.getTexture: Invalid key: "' + key + '"');
}
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},
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/**
* Get sound by key.
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*
* @method Phaser.Cache#getSound
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* @param {string} key - Asset key of the sound to retrieve from the Cache.
* @return {Phaser.Sound} The sound object.
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*/
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getSound: function (key) {
if (this._sounds[key])
{
return this._sounds[key];
}
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else
{
console.warn('Phaser.Cache.getSound: Invalid key: "' + key + '"');
}
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},
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/**
* Get sound data by key.
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*
* @method Phaser.Cache#getSoundData
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* @param {string} key - Asset key of the sound to retrieve from the Cache.
* @return {object} The sound data.
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*/
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getSoundData: function (key) {
if (this._sounds[key])
{
return this._sounds[key].data;
}
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else
{
console.warn('Phaser.Cache.getSoundData: Invalid key: "' + key + '"');
}
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},
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/**
* Check if the given sound has finished decoding.
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*
* @method Phaser.Cache#isSoundDecoded
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* @param {string} key - Asset key of the sound in the Cache.
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* @return {boolean} The decoded state of the Sound object.
*/
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isSoundDecoded: function (key) {
if (this._sounds[key])
{
return this._sounds[key].decoded;
}
},
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/**
* Check if the given sound is ready for playback. A sound is considered ready when it has finished decoding and the device is no longer touch locked.
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*
* @method Phaser.Cache#isSoundReady
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* @param {string} key - Asset key of the sound in the Cache.
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* @return {boolean} True if the sound is decoded and the device is not touch locked.
*/
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isSoundReady: function (key) {
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return (this._sounds[key] & & this._sounds[key].decoded & & this.game.sound.touchLocked === false);
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},
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/**
* Check whether an image asset is sprite sheet or not.
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*
* @method Phaser.Cache#isSpriteSheet
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* @param {string} key - Asset key of the sprite sheet you want.
* @return {boolean} True if the image is a sprite sheet.
*/
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isSpriteSheet: function (key) {
if (this._images[key])
{
return this._images[key].spriteSheet;
}
return false;
},
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/**
* Get text data by key.
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*
* @method Phaser.Cache#getText
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* @param {string} key - Asset key of the text data to retrieve from the Cache.
* @return {object} The text data.
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*/
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getText: function (key) {
if (this._text[key])
{
return this._text[key].data;
}
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else
{
console.warn('Phaser.Cache.getText: Invalid key: "' + key + '"');
}
},
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/**
* Get binary data by key.
*
* @method Phaser.Cache#getBinary
* @param {string} key - Asset key of the binary data object to retrieve from the Cache.
* @return {object} The binary data object.
*/
getBinary: function (key) {
if (this._binary[key])
{
return this._binary[key];
}
else
{
console.warn('Phaser.Cache.getBinary: Invalid key: "' + key + '"');
}
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},
/**
* Get the cache keys from a given array of objects.
* Normally you don't call this directly but instead use getImageKeys, getSoundKeys, etc.
*
* @method Phaser.Cache#getKeys
* @param {Array} array - An array of items to return the keys for.
* @return {Array} The array of item keys.
*/
getKeys: function (array) {
var output = [];
for (var item in array)
{
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if (item !== '__default' & & item !== '__missing')
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{
output.push(item);
}
}
return output;
},
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/**
* Returns an array containing all of the keys of Images in the Cache.
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*
* @method Phaser.Cache#getImageKeys
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* @return {Array} The string based keys in the Cache.
*/
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getImageKeys: function () {
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return this.getKeys(this._images);
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},
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/**
* Returns an array containing all of the keys of Sounds in the Cache.
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*
* @method Phaser.Cache#getSoundKeys
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* @return {Array} The string based keys in the Cache.
*/
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getSoundKeys: function () {
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return this.getKeys(this._sounds);
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},
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/**
* Returns an array containing all of the keys of Text Files in the Cache.
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*
* @method Phaser.Cache#getTextKeys
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* @return {Array} The string based keys in the Cache.
*/
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getTextKeys: function () {
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return this.getKeys(this._text);
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},
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/**
* Removes a canvas from the cache.
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*
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* @method Phaser.Cache#removeCanvas
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* @param {string} key - Key of the asset you want to remove.
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*/
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removeCanvas: function (key) {
delete this._canvases[key];
},
/**
* Removes an image from the cache.
*
* @method Phaser.Cache#removeImage
* @param {string} key - Key of the asset you want to remove.
*/
removeImage: function (key) {
delete this._images[key];
},
/**
* Removes a sound from the cache.
*
* @method Phaser.Cache#removeSound
* @param {string} key - Key of the asset you want to remove.
*/
removeSound: function (key) {
delete this._sounds[key];
},
/**
* Removes a text from the cache.
*
* @method Phaser.Cache#removeText
* @param {string} key - Key of the asset you want to remove.
*/
removeText: function (key) {
delete this._text[key];
},
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/**
* Clears the cache. Removes every local cache object reference.
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*
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* @method Phaser.Cache#destroy
*/
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destroy: function () {
for (var item in this._canvases)
{
delete this._canvases[item['key']];
}
for (var item in this._images)
{
delete this._images[item['key']];
}
for (var item in this._sounds)
{
delete this._sounds[item['key']];
}
for (var item in this._text)
{
delete this._text[item['key']];
}
}
};
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Phaser.Cache.prototype.constructor = Phaser.Cache;
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< / pre >
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Phaser Copyright © 2012-2014 Photon Storm Ltd.
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Documentation generated by < a href = "https://github.com/jsdoc3/jsdoc" > JSDoc 3.3.0-dev< / a >
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