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phaser/src/loader/Loader.js

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/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Phaser loader constructor.
* The Loader handles loading all external content such as Images, Sounds, Texture Atlases and data files.
* It uses a combination of Image() loading and xhr and provides progress and completion callbacks.
* @class Phaser.Loader
* @classdesc The Loader handles loading all external content such as Images, Sounds, Texture Atlases and data files.
* It uses a combination of Image() loading and xhr and provides progress and completion callbacks.
* @constructor
* @param {Phaser.Game} game - A reference to the currently running game.
*/
Phaser.Loader = function (game) {
/**
* @property {Phaser.Game} game - Local reference to game.
*/
this.game = game;
/**
* @property {array} _fileList - Contains all the assets file infos.
* @private
*/
this._fileList = [];
/**
* @property {number} _fileIndex - The index of the current file being loaded.
* @private
*/
this._fileIndex = 0;
/**
* @property {number} _progressChunk - Indicates the size of 1 file in terms of a percentage out of 100.
* @private
* @default
*/
this._progressChunk = 0;
/**
* @property {XMLHttpRequest} - An XMLHttpRequest object used for loading text and audio data.
* @private
*/
this._xhr = new XMLHttpRequest();
/**
* @property {boolean} isLoading - True if the Loader is in the process of loading the queue.
* @default
*/
this.isLoading = false;
/**
* @property {boolean} hasLoaded - True if all assets in the queue have finished loading.
* @default
*/
this.hasLoaded = false;
/**
* @property {number} progress - The rounded load progress percentage value (from 0 to 100)
* @default
*/
this.progress = 0;
/**
* @property {number} progressFloat - The non-rounded load progress value (from 0.0 to 100.0)
* @default
*/
this.progressFloat = 0;
/**
* You can optionally link a sprite to the preloader.
* If you do so the Sprites width or height will be cropped based on the percentage loaded.
* @property {Phaser.Sprite|Phaser.Image} preloadSprite
* @default
*/
this.preloadSprite = null;
/**
* @property {boolean|string} crossOrigin - The crossOrigin value applied to loaded images.
* @default
*/
this.crossOrigin = false;
/**
* If you want to append a URL before the path of any asset you can set this here.
* Useful if you need to allow an asset url to be configured outside of the game code.
* MUST have / on the end of it!
* @property {string} baseURL
* @default
*/
this.baseURL = '';
/**
* @property {Phaser.Signal} onFileComplete - Event signal.
*/
this.onFileComplete = new Phaser.Signal();
/**
* @property {Phaser.Signal} onFileError - Event signal.
*/
this.onFileError = new Phaser.Signal();
/**
* @property {Phaser.Signal} onLoadStart - Event signal.
*/
this.onLoadStart = new Phaser.Signal();
/**
* @property {Phaser.Signal} onLoadComplete - Event signal.
*/
this.onLoadComplete = new Phaser.Signal();
};
/**
* @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 = 3;
Phaser.Loader.prototype = {
/**
* You can 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. Note that Sprite.visible = true will be set when calling this.
*
* @method Phaser.Loader#setPreloadSprite
* @param {Phaser.Sprite|Phaser.Image} sprite - The sprite that will be cropped during the load.
* @param {number} [direction=0] - A value of zero means the sprite width will be cropped, a value of 1 means its height will be cropped.
*/
setPreloadSprite: function (sprite, direction) {
direction = direction || 0;
this.preloadSprite = { sprite: sprite, direction: direction, width: sprite.width, height: sprite.height, crop: null };
if (direction === 0)
{
// Horizontal crop
this.preloadSprite.crop = new Phaser.Rectangle(0, 0, 1, sprite.height);
}
else
{
// Vertical crop
this.preloadSprite.crop = new Phaser.Rectangle(0, 0, sprite.width, 1);
}
sprite.crop(this.preloadSprite.crop);
sprite.visible = true;
},
/**
* Check whether asset exists with a specific key.
*
* @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) {
if (this._fileList.length > 0)
{
for (var i = 0; i < this._fileList.length; i++)
{
if (this._fileList[i].type === type && this._fileList[i].key === key)
{
return true;
}
}
}
return false;
},
/**
* Gets the asset that is queued for load.
*
* @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 false.
*/
getAsset: function (type, key) {
if (this._fileList.length > 0)
{
for (var i = 0; i < this._fileList.length; i++)
{
if (this._fileList[i].type === type && this._fileList[i].key === key)
{
return { index: i, file: this._fileList[i] };
}
}
}
return false;
},
/**
* Reset loader, this will remove the load queue.
*
* @method Phaser.Loader#reset
*/
reset: function () {
this.preloadSprite = null;
this.isLoading = false;
this._fileList.length = 0;
this._fileIndex = 0;
},
/**
* Internal function that adds a new entry to the file list. Do not call directly.
*
* @method Phaser.Loader#addToFileList
* @param {string} type - The type of resource to add to the list (image, audio, xml, etc).
* @param {string} key - The unique Cache ID key of this resource.
* @param {string} url - The URL the asset will be loaded from.
* @param {object} properties - Any additional properties needed to load the file.
* @protected
*/
addToFileList: function (type, key, url, properties) {
var entry = {
type: type,
key: key,
url: url,
data: null,
error: false,
loaded: false
};
if (typeof properties !== "undefined")
{
for (var prop in properties)
{
entry[prop] = properties[prop];
}
}
if (this.checkKeyExists(type, key) === false)
{
this._fileList.push(entry);
}
},
/**
* Internal function that replaces an existing entry in the file list with a new one. Do not call directly.
*
* @method Phaser.Loader#replaceInFileList
* @param {string} type - The type of resource to add to the list (image, audio, xml, etc).
* @param {string} key - The unique Cache ID key of this resource.
* @param {string} url - The URL the asset will be loaded from.
* @param {object} properties - Any additional properties needed to load the file.
* @protected
*/
replaceInFileList: function (type, key, url, properties) {
var entry = {
type: type,
key: key,
url: url,
data: null,
error: false,
loaded: false
};
if (typeof properties !== "undefined")
{
for (var prop in properties)
{
entry[prop] = properties[prop];
}
}
if (this.checkKeyExists(type, key) === false)
{
this._fileList.push(entry);
}
},
/**
* Add an image to the Loader.
*
* @method Phaser.Loader#image
* @param {string} key - Unique asset key of this image file.
* @param {string} url - URL of image file.
* @param {boolean} [overwrite=false] - If an unloaded file with a matching key already exists in the queue, this entry will overwrite it.
* @return {Phaser.Loader} This Loader instance.
*/
image: function (key, url, overwrite) {
if (typeof overwrite === "undefined") { overwrite = false; }
if (overwrite)
{
this.replaceInFileList('image', key, url);
}
else
{
this.addToFileList('image', key, url);
}
return this;
},
/**
* Add a text file to the Loader.
*
* @method Phaser.Loader#text
* @param {string} key - Unique asset key of the text file.
* @param {string} url - URL of the text file.
* @param {boolean} [overwrite=false] - If an unloaded file with a matching key already exists in the queue, this entry will overwrite it.
* @return {Phaser.Loader} This Loader instance.
*/
text: function (key, url, overwrite) {
if (typeof overwrite === "undefined") { overwrite = false; }
if (overwrite)
{
this.replaceInFileList('text', key, url);
}
else
{
this.addToFileList('text', key, url);
}
return this;
},
/**
* Add a json file to the Loader.
*
* @method Phaser.Loader#json
* @param {string} key - Unique asset key of the json file.
* @param {string} url - URL of the json file.
* @param {boolean} [overwrite=false] - If an unloaded file with a matching key already exists in the queue, this entry will overwrite it.
* @return {Phaser.Loader} This Loader instance.
*/
json: function (key, url, overwrite) {
if (typeof overwrite === "undefined") { overwrite = false; }
if (overwrite)
{
this.replaceInFileList('json', key, url);
}
else
{
this.addToFileList('json', key, url);
}
return this;
},
/**
* Add a JavaScript file to the Loader. Once loaded the JavaScript file will be automatically turned into a script tag (and executed), so be careful what you load!
*
* @method Phaser.Loader#script
* @param {string} key - Unique asset key of the script file.
* @param {string} url - URL of the JavaScript file.
* @return {Phaser.Loader} This Loader instance.
*/
script: function (key, url) {
this.addToFileList('script', key, url);
return this;
},
/**
* Add a binary file to the Loader. It will be loaded via xhr with a responseType of "arraybuffer". You can specify an optional callback to process the file after load.
* When the callback is called it will be passed 2 parameters: the key of the file and the file data.
* WARNING: If you specify a callback, the file data will be set to whatever your callback returns. So always return the data object, even if you didn't modify it.
*
* @method Phaser.Loader#binary
* @param {string} key - Unique asset key of the binary file.
* @param {string} url - URL of the binary file.
* @param {function} [callback] - Optional callback that will be passed the file after loading, so you can perform additional processing on it.
* @param {function} [callbackContext] - The context under which the callback will be applied. If not specified it will use the callback itself as the context.
* @return {Phaser.Loader} This Loader instance.
*/
binary: function (key, url, callback, callbackContext) {
if (typeof callback === 'undefined') { callback = false; }
if (callback !== false && typeof callbackContext === 'undefined') { callbackContext = callback; }
this.addToFileList('binary', key, url, { callback: callback, callbackContext: callbackContext });
return this;
},
/**
* Add a new sprite sheet to the loader.
*
* @method Phaser.Loader#spritesheet
* @param {string} key - Unique asset key of the sheet file.
* @param {string} url - URL of the sheet file.
* @param {number} frameWidth - Width of each single frame.
* @param {number} frameHeight - Height of each single frame.
* @param {number} [frameMax=-1] - How many frames in this sprite sheet. If not specified it will divide the whole image into frames.
* @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.
* @return {Phaser.Loader} This Loader instance.
*/
spritesheet: function (key, url, frameWidth, frameHeight, frameMax, margin, spacing) {
if (typeof frameMax === "undefined") { frameMax = -1; }
if (typeof margin === "undefined") { margin = 0; }
if (typeof spacing === "undefined") { spacing = 0; }
this.addToFileList('spritesheet', key, url, { frameWidth: frameWidth, frameHeight: frameHeight, frameMax: frameMax, margin: margin, spacing: spacing });
return this;
},
/**
* Add a new audio file to the loader.
*
* @method Phaser.Loader#audio
* @param {string} key - Unique asset key of the audio file.
* @param {Array|string} urls - An array containing the URLs of the audio files, i.e.: [ 'jump.mp3', 'jump.ogg', 'jump.m4a' ] or a single string containing just one URL.
* @param {boolean} autoDecode - When using Web Audio the audio files can either be decoded at load time or run-time. They can't be played until they are decoded, but this let's you control when that happens. Decoding is a non-blocking async process.
* @return {Phaser.Loader} This Loader instance.
*/
audio: function (key, urls, autoDecode) {
if (typeof autoDecode === "undefined") { autoDecode = true; }
this.addToFileList('audio', key, urls, { buffer: null, autoDecode: autoDecode });
return this;
},
/**
* Add a new tilemap loading request.
*
* @method Phaser.Loader#tilemap
* @param {string} key - Unique asset key of the tilemap data.
* @param {string} [mapDataURL] - The url of the map data file (csv/json)
* @param {object} [mapData] - An optional JSON data object. If given then the mapDataURL is ignored and this JSON object is used for map data instead.
* @param {string} [format=Phaser.Tilemap.CSV] - The format of the map data. Either Phaser.Tilemap.CSV or Phaser.Tilemap.TILED_JSON.
* @return {Phaser.Loader} This Loader instance.
*/
tilemap: function (key, mapDataURL, mapData, format) {
if (typeof mapDataURL === "undefined") { mapDataURL = null; }
if (typeof mapData === "undefined") { mapData = null; }
if (typeof format === "undefined") { format = Phaser.Tilemap.CSV; }
if (mapDataURL == null && mapData == null)
{
console.warn('Phaser.Loader.tilemap - Both mapDataURL and mapData are null. One must be set.');
return this;
}
// A map data object has been given
if (mapData)
{
switch (format)
{
// A csv string or object has been given
case Phaser.Tilemap.CSV:
break;
// An xml string or object has been given
case Phaser.Tilemap.TILED_JSON:
if (typeof mapData === 'string')
{
mapData = JSON.parse(mapData);
}
break;
}
this.game.cache.addTilemap(key, null, mapData, format);
}
else
{
this.addToFileList('tilemap', key, mapDataURL, { format: format });
}
return this;
},
/**
* Add a new physics data object loading request.
* The data must be in Lime + Corona JSON format. Physics Editor by code'n'web exports in this format natively.
*
* @method Phaser.Loader#physics
* @param {string} key - Unique asset key of the physics json data.
* @param {string} [dataURL] - The url of the map data file (csv/json)
* @param {object} [jsonData] - An optional JSON data object. If given then the dataURL is ignored and this JSON object is used for physics data instead.
* @param {string} [format=Phaser.Physics.LIME_CORONA_JSON] - The format of the physics data.
* @return {Phaser.Loader} This Loader instance.
*/
physics: function (key, dataURL, jsonData, format) {
if (typeof dataURL === "undefined") { dataURL = null; }
if (typeof jsonData === "undefined") { jsonData = null; }
if (typeof format === "undefined") { format = Phaser.Physics.LIME_CORONA_JSON; }
if (dataURL == null && jsonData == null)
{
console.warn('Phaser.Loader.physics - Both dataURL and jsonData are null. One must be set.');
return this;
}
// A map data object has been given
if (jsonData)
{
if (typeof jsonData === 'string')
{
jsonData = JSON.parse(jsonData);
}
this.game.cache.addPhysicsData(key, null, jsonData, format);
}
else
{
this.addToFileList('physics', key, dataURL, { format: format });
}
return this;
},
/**
* Add a new bitmap font loading request.
*
* @method Phaser.Loader#bitmapFont
* @param {string} key - Unique asset key of the bitmap font.
* @param {string} textureURL - The url of the font image file.
* @param {string} [xmlURL] - The url of the font data file (xml/fnt)
* @param {object} [xmlData] - An optional XML data object.
* @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.
* @return {Phaser.Loader} This Loader instance.
*/
bitmapFont: function (key, textureURL, xmlURL, xmlData, xSpacing, ySpacing) {
if (typeof xmlURL === "undefined") { xmlURL = null; }
if (typeof xmlData === "undefined") { xmlData = null; }
if (typeof xSpacing === "undefined") { xSpacing = 0; }
if (typeof ySpacing === "undefined") { ySpacing = 0; }
// A URL to a json/xml file has been given
if (xmlURL)
{
this.addToFileList('bitmapfont', key, textureURL, { xmlURL: xmlURL, xSpacing: xSpacing, ySpacing: ySpacing });
}
else
{
// An xml string or object has been given
if (typeof xmlData === 'string')
{
var xml;
try {
if (window['DOMParser'])
{
var domparser = new DOMParser();
xml = domparser.parseFromString(xmlData, "text/xml");
}
else
{
xml = new ActiveXObject("Microsoft.XMLDOM");
xml.async = 'false';
xml.loadXML(xmlData);
}
}
catch (e)
{
xml = undefined;
}
if (!xml || !xml.documentElement || xml.getElementsByTagName("parsererror").length)
{
throw new Error("Phaser.Loader. Invalid Bitmap Font XML given");
}
else
{
this.addToFileList('bitmapfont', key, textureURL, { xmlURL: null, xmlData: xml, xSpacing: xSpacing, ySpacing: ySpacing });
}
}
}
return this;
},
/**
* Add a new texture atlas to the loader. This atlas uses the JSON Array data format.
*
* @method Phaser.Loader#atlasJSONArray
* @param {string} key - Unique asset key of the texture atlas file.
* @param {string} textureURL - The url of the texture atlas image file.
* @param {string} [atlasURL] - The url of the texture atlas data file (json/xml). You don't need this if you are passing an atlasData object instead.
* @param {object} [atlasData] - A JSON or XML data object. You don't need this if the data is being loaded from a URL.
* @return {Phaser.Loader} This Loader instance.
*/
atlasJSONArray: function (key, textureURL, atlasURL, atlasData) {
return this.atlas(key, textureURL, atlasURL, atlasData, Phaser.Loader.TEXTURE_ATLAS_JSON_ARRAY);
},
/**
* Add a new texture atlas to the loader. This atlas uses the JSON Hash data format.
*
* @method Phaser.Loader#atlasJSONHash
* @param {string} key - Unique asset key of the texture atlas file.
* @param {string} textureURL - The url of the texture atlas image file.
* @param {string} [atlasURL] - The url of the texture atlas data file (json/xml). You don't need this if you are passing an atlasData object instead.
* @param {object} [atlasData] - A JSON or XML data object. You don't need this if the data is being loaded from a URL.
* @return {Phaser.Loader} This Loader instance.
*/
atlasJSONHash: function (key, textureURL, atlasURL, atlasData) {
return this.atlas(key, textureURL, atlasURL, atlasData, Phaser.Loader.TEXTURE_ATLAS_JSON_HASH);
},
/**
* Add a new texture atlas to the loader. This atlas uses the Starling XML data format.
*
* @method Phaser.Loader#atlasXML
* @param {string} key - Unique asset key of the texture atlas file.
* @param {string} textureURL - The url of the texture atlas image file.
* @param {string} [atlasURL] - The url of the texture atlas data file (json/xml). You don't need this if you are passing an atlasData object instead.
* @param {object} [atlasData] - A JSON or XML data object. You don't need this if the data is being loaded from a URL.
* @return {Phaser.Loader} This Loader instance.
*/
atlasXML: function (key, textureURL, atlasURL, atlasData) {
return this.atlas(key, textureURL, atlasURL, atlasData, Phaser.Loader.TEXTURE_ATLAS_XML_STARLING);
},
/**
* Add a new texture atlas to the loader.
*
* @method Phaser.Loader#atlas
* @param {string} key - Unique asset key of the texture atlas file.
* @param {string} textureURL - The url of the texture atlas image file.
* @param {string} [atlasURL] - The url of the texture atlas data file (json/xml). You don't need this if you are passing an atlasData object instead.
* @param {object} [atlasData] - A JSON or XML data object. You don't need this if the data is being loaded from a URL.
* @param {number} [format] - A value describing the format of the data, the default is Phaser.Loader.TEXTURE_ATLAS_JSON_ARRAY.
* @return {Phaser.Loader} This Loader instance.
*/
atlas: function (key, textureURL, atlasURL, atlasData, format) {
if (typeof atlasURL === "undefined") { atlasURL = null; }
if (typeof atlasData === "undefined") { atlasData = null; }
if (typeof format === "undefined") { format = Phaser.Loader.TEXTURE_ATLAS_JSON_ARRAY; }
// A URL to a json/xml file has been given
if (atlasURL)
{
this.addToFileList('textureatlas', key, textureURL, { atlasURL: atlasURL, format: format });
}
else
{
switch (format)
{
// A json string or object has been given
case Phaser.Loader.TEXTURE_ATLAS_JSON_ARRAY:
if (typeof atlasData === 'string')
{
atlasData = JSON.parse(atlasData);
}
break;
// An xml string or object has been given
case Phaser.Loader.TEXTURE_ATLAS_XML_STARLING:
if (typeof atlasData === 'string')
{
var xml;
try {
if (window['DOMParser'])
{
var domparser = new DOMParser();
xml = domparser.parseFromString(atlasData, "text/xml");
}
else
{
xml = new ActiveXObject("Microsoft.XMLDOM");
xml.async = 'false';
xml.loadXML(atlasData);
}
}
catch (e)
{
xml = undefined;
}
if (!xml || !xml.documentElement || xml.getElementsByTagName("parsererror").length)
{
throw new Error("Phaser.Loader. Invalid Texture Atlas XML given");
}
else
{
atlasData = xml;
}
}
break;
}
this.addToFileList('textureatlas', key, textureURL, { atlasURL: null, atlasData: atlasData, format: format });
}
return this;
},
/**
* Remove loading request of a file.
*
* @method Phaser.Loader#removeFile
* @param {string} type - The type of resource to add to the list (image, audio, xml, etc).
* @param {string} key - Key of the file you want to remove.
*/
removeFile: function (type, key) {
var file = this.getAsset(type, key);
if (file !== false)
{
this._fileList.splice(file.index, 1);
}
},
/**
* Remove all file loading requests.
*
* @method Phaser.Loader#removeAll
*/
removeAll: function () {
this._fileList.length = 0;
},
/**
* Start loading the assets. Normally you don't need to call this yourself as the StateManager will do so.
*
* @method Phaser.Loader#start
*/
start: function () {
if (this.isLoading)
{
return;
}
this.progress = 0;
this.progressFloat = 0;
this.hasLoaded = false;
this.isLoading = true;
this.onLoadStart.dispatch(this._fileList.length);
if (this._fileList.length > 0)
{
this._fileIndex = 0;
this._progressChunk = 100 / this._fileList.length;
this.loadFile();
}
else
{
this.progress = 100;
this.progressFloat = 100;
this.hasLoaded = true;
this.onLoadComplete.dispatch();
}
},
/**
* Load files. Private method ONLY used by loader.
*
* @method Phaser.Loader#loadFile
* @private
*/
loadFile: function () {
if (!this._fileList[this._fileIndex])
{
console.warn('Phaser.Loader loadFile invalid index ' + this._fileIndex);
return;
}
var file = this._fileList[this._fileIndex];
var _this = this;
// Image or Data?
switch (file.type)
{
case 'image':
case 'spritesheet':
case 'textureatlas':
case 'bitmapfont':
file.data = new Image();
file.data.name = file.key;
file.data.onload = function () {
return _this.fileComplete(_this._fileIndex);
};
file.data.onerror = function () {
return _this.fileError(_this._fileIndex);
};
if (this.crossOrigin)
{
file.data.crossOrigin = this.crossOrigin;
}
file.data.src = this.baseURL + file.url;
break;
case 'audio':
file.url = this.getAudioURL(file.url);
if (file.url !== null)
{
// WebAudio or Audio Tag?
if (this.game.sound.usingWebAudio)
{
this._xhr.open("GET", this.baseURL + file.url, true);
this._xhr.responseType = "arraybuffer";
this._xhr.onload = function () {
return _this.fileComplete(_this._fileIndex);
};
this._xhr.onerror = function () {
return _this.fileError(_this._fileIndex);
};
this._xhr.send();
}
else if (this.game.sound.usingAudioTag)
{
if (this.game.sound.touchLocked)
{
// If audio is locked we can't do this yet, so need to queue this load request. Bum.
file.data = new Audio();
file.data.name = file.key;
file.data.preload = 'auto';
file.data.src = this.baseURL + file.url;
this.fileComplete(this._fileIndex);
}
else
{
file.data = new Audio();
file.data.name = file.key;
file.data.onerror = function () {
return _this.fileError(_this._fileIndex);
};
file.data.preload = 'auto';
file.data.src = this.baseURL + file.url;
file.data.addEventListener('canplaythrough', Phaser.GAMES[this.game.id].load.fileComplete(this._fileIndex), false);
file.data.load();
}
}
}
else
{
this.fileError(this._fileIndex);
}
break;
case 'json':
this._xhr.open("GET", this.baseURL + file.url, true);
this._xhr.responseType = "text";
this._xhr.onload = function () {
return _this.jsonLoadComplete(_this._fileIndex);
};
this._xhr.send();
break;
case 'tilemap':
this._xhr.open("GET", this.baseURL + file.url, true);
this._xhr.responseType = "text";
if (file.format === Phaser.Tilemap.TILED_JSON)
{
this._xhr.onload = function () {
return _this.jsonLoadComplete(_this._fileIndex);
};
}
else if (file.format === Phaser.Tilemap.CSV)
{
this._xhr.onload = function () {
return _this.csvLoadComplete(_this._fileIndex);
};
}
else
{
throw new Error("Phaser.Loader. Invalid Tilemap format: " + file.format);
}
this._xhr.onerror = function () {
return _this.dataLoadError(_this._fileIndex);
};
this._xhr.send();
break;
case 'text':
case 'script':
case 'physics':
this._xhr.open("GET", this.baseURL + file.url, true);
this._xhr.responseType = "text";
this._xhr.onload = function () {
return _this.fileComplete(_this._fileIndex);
};
this._xhr.onerror = function () {
return _this.fileError(_this._fileIndex);
};
this._xhr.send();
break;
case 'binary':
this._xhr.open("GET", this.baseURL + file.url, true);
this._xhr.responseType = "arraybuffer";
this._xhr.onload = function () {
return _this.fileComplete(_this._fileIndex);
};
this._xhr.onerror = function () {
return _this.fileError(_this._fileIndex);
};
this._xhr.send();
break;
}
},
/**
* Private method ONLY used by loader.
* @method Phaser.Loader#getAudioURL
* @param {array|string} urls - Either an array of audio file URLs or a string containing a single URL path.
* @private
*/
getAudioURL: function (urls) {
var extension;
if (typeof urls === 'string') { urls = [urls]; }
for (var i = 0; i < urls.length; i++)
{
extension = urls[i].toLowerCase();
extension = extension.substr((Math.max(0, extension.lastIndexOf(".")) || Infinity) + 1);
if (this.game.device.canPlayAudio(extension))
{
return urls[i];
}
}
return null;
},
/**
* Error occured when loading a file.
*
* @method Phaser.Loader#fileError
* @param {number} index - The index of the file in the file queue that errored.
*/
fileError: function (index) {
this._fileList[index].loaded = true;
this._fileList[index].error = true;
this.onFileError.dispatch(this._fileList[index].key, this._fileList[index]);
console.warn("Phaser.Loader error loading file: " + this._fileList[index].key + ' from URL ' + this._fileList[index].url);
this.nextFile(index, false);
},
/**
* Called when a file is successfully loaded.
*
* @method Phaser.Loader#fileComplete
* @param {number} index - The index of the file in the file queue that loaded.
*/
fileComplete: function (index) {
if (!this._fileList[index])
{
console.warn('Phaser.Loader fileComplete invalid index ' + index);
return;
}
var file = this._fileList[index];
file.loaded = true;
var loadNext = true;
var _this = this;
switch (file.type)
{
case 'image':
this.game.cache.addImage(file.key, file.url, file.data);
break;
case 'spritesheet':
this.game.cache.addSpriteSheet(file.key, file.url, file.data, file.frameWidth, file.frameHeight, file.frameMax, file.margin, file.spacing);
break;
case 'textureatlas':
if (file.atlasURL == null)
{
this.game.cache.addTextureAtlas(file.key, file.url, file.data, file.atlasData, file.format);
}
else
{
// Load the JSON or XML before carrying on with the next file
loadNext = false;
this._xhr.open("GET", this.baseURL + file.atlasURL, true);
this._xhr.responseType = "text";
if (file.format == Phaser.Loader.TEXTURE_ATLAS_JSON_ARRAY || file.format == Phaser.Loader.TEXTURE_ATLAS_JSON_HASH)
{
this._xhr.onload = function () {
return _this.jsonLoadComplete(index);
};
}
else if (file.format == Phaser.Loader.TEXTURE_ATLAS_XML_STARLING)
{
this._xhr.onload = function () {
return _this.xmlLoadComplete(index);
};
}
else
{
throw new Error("Phaser.Loader. Invalid Texture Atlas format: " + file.format);
}
this._xhr.onerror = function () {
return _this.dataLoadError(index);
};
this._xhr.send();
}
break;
case 'bitmapfont':
if (file.xmlURL == null)
{
this.game.cache.addBitmapFont(file.key, file.url, file.data, file.xmlData, file.xSpacing, file.ySpacing);
}
else
{
// Load the XML before carrying on with the next file
loadNext = false;
this._xhr.open("GET", this.baseURL + file.xmlURL, true);
this._xhr.responseType = "text";
this._xhr.onload = function () {
return _this.xmlLoadComplete(index);
};
this._xhr.onerror = function () {
return _this.dataLoadError(index);
};
this._xhr.send();
}
break;
case 'audio':
if (this.game.sound.usingWebAudio)
{
file.data = this._xhr.response;
this.game.cache.addSound(file.key, file.url, file.data, true, false);
if (file.autoDecode)
{
this.game.cache.updateSound(key, 'isDecoding', true);
var that = this;
var key = file.key;
this.game.sound.context.decodeAudioData(file.data, function (buffer) {
if (buffer)
{
that.game.cache.decodedSound(key, buffer);
that.game.sound.onSoundDecode.dispatch(key, that.game.cache.getSound(key));
}
});
}
}
else
{
file.data.removeEventListener('canplaythrough', Phaser.GAMES[this.game.id].load.fileComplete);
this.game.cache.addSound(file.key, file.url, file.data, false, true);
}
break;
case 'text':
file.data = this._xhr.responseText;
this.game.cache.addText(file.key, file.url, file.data);
break;
case 'physics':
var data = JSON.parse(this._xhr.responseText);
this.game.cache.addPhysicsData(file.key, file.url, data, file.format);
break;
case 'script':
file.data = document.createElement('script');
file.data.language = 'javascript';
file.data.type = 'text/javascript';
file.data.defer = false;
file.data.text = this._xhr.responseText;
document.head.appendChild(file.data);
break;
case 'binary':
if (file.callback)
{
file.data = file.callback.call(file.callbackContext, file.key, this._xhr.response);
}
else
{
file.data = this._xhr.response;
}
this.game.cache.addBinary(file.key, file.data);
break;
}
if (loadNext)
{
this.nextFile(index, true);
}
},
/**
* Successfully loaded a JSON file.
*
* @method Phaser.Loader#jsonLoadComplete
* @param {number} index - The index of the file in the file queue that loaded.
*/
jsonLoadComplete: function (index) {
if (!this._fileList[index])
{
console.warn('Phaser.Loader jsonLoadComplete invalid index ' + index);
return;
}
var file = this._fileList[index];
var data = JSON.parse(this._xhr.responseText);
file.loaded = true;
if (file.type === 'tilemap')
{
this.game.cache.addTilemap(file.key, file.url, data, file.format);
}
else if (file.type === 'json')
{
this.game.cache.addJSON(file.key, file.url, data);
}
else
{
this.game.cache.addTextureAtlas(file.key, file.url, file.data, data, file.format);
}
this.nextFile(index, true);
},
/**
* Successfully loaded a CSV file.
*
* @method Phaser.Loader#csvLoadComplete
* @param {number} index - The index of the file in the file queue that loaded.
*/
csvLoadComplete: function (index) {
if (!this._fileList[index])
{
console.warn('Phaser.Loader csvLoadComplete invalid index ' + index);
return;
}
var file = this._fileList[index];
var data = this._xhr.responseText;
file.loaded = true;
this.game.cache.addTilemap(file.key, file.url, data, file.format);
this.nextFile(index, true);
},
/**
* Error occured when load a JSON.
*
* @method Phaser.Loader#dataLoadError
* @param {number} index - The index of the file in the file queue that errored.
*/
dataLoadError: function (index) {
var file = this._fileList[index];
file.loaded = true;
file.error = true;
console.warn("Phaser.Loader dataLoadError: " + file.key);
this.nextFile(index, true);
},
/**
* Successfully loaded an XML file.
*
* @method Phaser.Loader#xmlLoadComplete
* @param {number} index - The index of the file in the file queue that loaded.
*/
xmlLoadComplete: function (index) {
var data = this._xhr.responseText;
var xml;
try
{
if (window['DOMParser'])
{
var domparser = new DOMParser();
xml = domparser.parseFromString(data, "text/xml");
}
else
{
xml = new ActiveXObject("Microsoft.XMLDOM");
xml.async = 'false';
xml.loadXML(data);
}
}
catch (e)
{
xml = undefined;
}
if (!xml || !xml.documentElement || xml.getElementsByTagName("parsererror").length)
{
throw new Error("Phaser.Loader. Invalid XML given");
}
var file = this._fileList[index];
file.loaded = true;
if (file.type == 'bitmapfont')
{
this.game.cache.addBitmapFont(file.key, file.url, file.data, xml, file.xSpacing, file.ySpacing);
}
else if (file.type == 'textureatlas')
{
this.game.cache.addTextureAtlas(file.key, file.url, file.data, xml, file.format);
}
this.nextFile(index, true);
},
/**
* Handle loading next file.
*
* @param {number} previousIndex - Index of the previously loaded asset.
* @param {boolean} success - Whether the previous asset loaded successfully or not.
* @private
*/
nextFile: function (previousIndex, success) {
this.progressFloat += this._progressChunk;
this.progress = Math.round(this.progressFloat);
if (this.progress > 100)
{
this.progress = 100;
}
if (this.preloadSprite !== null)
{
if (this.preloadSprite.direction === 0)
{
this.preloadSprite.crop.width = Math.floor((this.preloadSprite.width / 100) * this.progress);
}
else
{
this.preloadSprite.crop.height = Math.floor((this.preloadSprite.height / 100) * this.progress);
}
}
this.onFileComplete.dispatch(this.progress, this._fileList[previousIndex].key, success, this.totalLoadedFiles(), this._fileList.length);
if (this.totalQueuedFiles() > 0)
{
this._fileIndex++;
this.loadFile();
}
else
{
this.hasLoaded = true;
this.isLoading = false;
this.removeAll();
this.onLoadComplete.dispatch();
}
},
/**
* Returns the number of files that have already been loaded, even if they errored.
*
* @return {number} The number of files that have already been loaded (even if they errored)
*/
totalLoadedFiles: function () {
var total = 0;
for (var i = 0; i < this._fileList.length; i++)
{
if (this._fileList[i].loaded)
{
total++;
}
}
return total;
},
/**
* Returns the number of files still waiting to be processed in the load queue. This value decreases as each file is in the queue is loaded.
*
* @return {number} The number of files that still remain in the load queue.
*/
totalQueuedFiles: function () {
var total = 0;
for (var i = 0; i < this._fileList.length; i++)
{
if (this._fileList[i].loaded === false)
{
total++;
}
}
return total;
}
};
Phaser.Loader.prototype.constructor = Phaser.Loader;
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