Bestanden laden laat site crashen
Voor een spelletje gebruik ik een Loader object om bestanden in te laden (in dit geval 648 geluidsbestandjes).
Maar omdat er zoveel ingeladen moet worden crasht de website en loopt de browser vast (als het te lang duurt). Hoe los ik dit op?
Dit is het Loader object:
Code (php)
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/**
* @class Loader
* @param {Client} parent
*/
var Loader = function Loader(parent)
{
/**
* @returns {Array}
*/
this._imageDataList;
/**
* @returns {Uint}
*/
this._imagesLoaded;
/**
* @returns {Array}
*/
this._soundDataList;
/**
* @returns {Uint}
*/
this._soundsLoaded;
/**
* @returns {Client}
*/
this.parent;
/**
* @constructor
*/
{
/* Initialize image data list */
this._imageDataList = [];
/* Initialize images loaded */
this._imagesLoaded = 0;
/* Initialize sound data list */
this._soundDataList = [];
/* Initialize sounds loaded */
this._soundsLoaded = 0;
/* Initialize parent */
this.parent = parent;
};
};
/**
* @method _loadImage
* @syntax Loader._loadImage(imageData)
* @param {Object} imageData
* @returns {Loaded}
* @private
*/
Loader.prototype._loadImage = function(imageData)
{
/* Initialize self */
var self = this;
/* Create image */
var image = jQuery('<img>');
/* Set source */
image.attr('src', imageData.path + imageData.name + '.' + imageData.extension);
/* Set data path */
image.attr('data-path', imageData.path);
/* Set data name */
image.attr('data-name', imageData.name);
/* Set data extension */
image.attr('data-extension', imageData.extension);
/* Add event listener */
image.one('load', function()
{
/* Increase images loaded */
self._imagesLoaded++;
/* Add asset */
self.parent.assets.addImage(jQuery(this));
});
/* Return this */
return this;
};
/**
* @method _loadSound
* @syntax Loader._loadSound(soundData)
* @param {Object} soundData
* @returns {Loaded}
* @private
*/
Loader.prototype._loadSound = function(soundData)
{
/* Initialize self */
var self = this;
/* Create sound */
var sound = jQuery('<audio>');
/* Loop trough list of extensions */
for (var i = soundData.extensions.length - 1; i >= 0; i--)
{
/* Create source */
var source = jQuery('<source>');
/* Set source */
source.attr('src', soundData.path + soundData.name + '.' + soundData.extensions[i]);
/* Set data extension */
source.attr('data-extension', soundData.extensions[i]);
/* Append source to sound */
sound.append(source);
}
/* Set data path */
sound.attr('data-path', soundData.path);
/* Set data name */
sound.attr('data-name', soundData.name);
/* Add event listener */
sound.one('canplaythrough', function()
{
/* Increase sounds loaded */
self._soundsLoaded++;
/* Add asset */
self.parent.assets.addSound(jQuery(this));
});
/* Return this */
return this;
};
/**
* @method _loadImages
* @syntax Loader._loadImages()
* @returns {Loader}
* @private
*/
Loader.prototype._loadImages = function()
{
/* Loop trough image data list */
for (var i = this._imageDataList.length - 1; i >= 0; i--)
{
/* Load image */
this._loadImage(this._imageDataList[i]);
}
/* Return this */
return this;
};
/**
* @method _loadSounds
* @syntax Loader._loadSounds()
* @returns {Loader}
* @private
*/
Loader.prototype._loadSounds = function()
{
/* Loop trough sound data list */
for (var i = this._soundDataList.length - 1; i >= 0; i--)
{
/* Load sound */
this._loadSound(this._soundDataList[i]);
}
/* Return this */
return this;
};
/**
* @method addImage
* @syntax Loader.addImage(path, name, extension)
* @param {String} path
* @param {String} name
* @param {String} extension
* @returns {Loaded}
* @public
*/
Loader.prototype.addImage = function(path, name, extension)
{
/* Add image data to image data list */
this._imageDataList.push(
{
path: path,
name: name,
extension: extension
});
/* Return this */
return this;
};
/**
* @method addSound
* @syntax Loader.addSound(path, name, extension)
* @param {String} path
* @param {String} name
* @param {Array} extensions
* @returns {Loaded}
* @public
*/
Loader.prototype.addSound = function(path, name, extensions)
{
/* Add sound data to sound data list */
this._soundDataList.push(
{
path: path,
name: name,
extensions: extensions
});
/* Return this */
return this;
};
/**
* @method progress
* @syntax Loader.progress()
* @returns {Uint}
* @public
*/
Loader.prototype.progress = function()
{
/* Calculate total */
var total = (this._imageDataList.length + this._soundDataList.length);
/* Calculate total loaded */
var totalLoaded = this._imagesLoaded + this._soundsLoaded;
/* Return progress */
return ((100 / total) * totalLoaded).toFixed(2);
};
/**
* @method run
* @syntax Loader.run()
* @returns {Loader}
* @public
*/
Loader.prototype.run = function()
{
/* Load images */
this._loadImages();
/* Load sounds */
this._loadSounds();
/* Return this */
return this;
};
* @class Loader
* @param {Client} parent
*/
var Loader = function Loader(parent)
{
/**
* @returns {Array}
*/
this._imageDataList;
/**
* @returns {Uint}
*/
this._imagesLoaded;
/**
* @returns {Array}
*/
this._soundDataList;
/**
* @returns {Uint}
*/
this._soundsLoaded;
/**
* @returns {Client}
*/
this.parent;
/**
* @constructor
*/
{
/* Initialize image data list */
this._imageDataList = [];
/* Initialize images loaded */
this._imagesLoaded = 0;
/* Initialize sound data list */
this._soundDataList = [];
/* Initialize sounds loaded */
this._soundsLoaded = 0;
/* Initialize parent */
this.parent = parent;
};
};
/**
* @method _loadImage
* @syntax Loader._loadImage(imageData)
* @param {Object} imageData
* @returns {Loaded}
* @private
*/
Loader.prototype._loadImage = function(imageData)
{
/* Initialize self */
var self = this;
/* Create image */
var image = jQuery('<img>');
/* Set source */
image.attr('src', imageData.path + imageData.name + '.' + imageData.extension);
/* Set data path */
image.attr('data-path', imageData.path);
/* Set data name */
image.attr('data-name', imageData.name);
/* Set data extension */
image.attr('data-extension', imageData.extension);
/* Add event listener */
image.one('load', function()
{
/* Increase images loaded */
self._imagesLoaded++;
/* Add asset */
self.parent.assets.addImage(jQuery(this));
});
/* Return this */
return this;
};
/**
* @method _loadSound
* @syntax Loader._loadSound(soundData)
* @param {Object} soundData
* @returns {Loaded}
* @private
*/
Loader.prototype._loadSound = function(soundData)
{
/* Initialize self */
var self = this;
/* Create sound */
var sound = jQuery('<audio>');
/* Loop trough list of extensions */
for (var i = soundData.extensions.length - 1; i >= 0; i--)
{
/* Create source */
var source = jQuery('<source>');
/* Set source */
source.attr('src', soundData.path + soundData.name + '.' + soundData.extensions[i]);
/* Set data extension */
source.attr('data-extension', soundData.extensions[i]);
/* Append source to sound */
sound.append(source);
}
/* Set data path */
sound.attr('data-path', soundData.path);
/* Set data name */
sound.attr('data-name', soundData.name);
/* Add event listener */
sound.one('canplaythrough', function()
{
/* Increase sounds loaded */
self._soundsLoaded++;
/* Add asset */
self.parent.assets.addSound(jQuery(this));
});
/* Return this */
return this;
};
/**
* @method _loadImages
* @syntax Loader._loadImages()
* @returns {Loader}
* @private
*/
Loader.prototype._loadImages = function()
{
/* Loop trough image data list */
for (var i = this._imageDataList.length - 1; i >= 0; i--)
{
/* Load image */
this._loadImage(this._imageDataList[i]);
}
/* Return this */
return this;
};
/**
* @method _loadSounds
* @syntax Loader._loadSounds()
* @returns {Loader}
* @private
*/
Loader.prototype._loadSounds = function()
{
/* Loop trough sound data list */
for (var i = this._soundDataList.length - 1; i >= 0; i--)
{
/* Load sound */
this._loadSound(this._soundDataList[i]);
}
/* Return this */
return this;
};
/**
* @method addImage
* @syntax Loader.addImage(path, name, extension)
* @param {String} path
* @param {String} name
* @param {String} extension
* @returns {Loaded}
* @public
*/
Loader.prototype.addImage = function(path, name, extension)
{
/* Add image data to image data list */
this._imageDataList.push(
{
path: path,
name: name,
extension: extension
});
/* Return this */
return this;
};
/**
* @method addSound
* @syntax Loader.addSound(path, name, extension)
* @param {String} path
* @param {String} name
* @param {Array} extensions
* @returns {Loaded}
* @public
*/
Loader.prototype.addSound = function(path, name, extensions)
{
/* Add sound data to sound data list */
this._soundDataList.push(
{
path: path,
name: name,
extensions: extensions
});
/* Return this */
return this;
};
/**
* @method progress
* @syntax Loader.progress()
* @returns {Uint}
* @public
*/
Loader.prototype.progress = function()
{
/* Calculate total */
var total = (this._imageDataList.length + this._soundDataList.length);
/* Calculate total loaded */
var totalLoaded = this._imagesLoaded + this._soundsLoaded;
/* Return progress */
return ((100 / total) * totalLoaded).toFixed(2);
};
/**
* @method run
* @syntax Loader.run()
* @returns {Loader}
* @public
*/
Loader.prototype.run = function()
{
/* Load images */
this._loadImages();
/* Load sounds */
this._loadSounds();
/* Return this */
return this;
};
Gewijzigd op 26/07/2014 23:26:35 door Lord Gaga
En ik heb nog eens goed gekeken en ik denk inderdaad dat de browser crasht omdat er in 1 keer 648 requests worden gedaan. Zou het helpen als ik een queue maak en de bestanden 1 voor 1 laadt? Dan wordt het volgende bestand pas geladen als het vorige bestand het event 'load' fired.
Ik heb hier iets gevonden:
https://developer.mozilla.org/nl/docs/Web/Guide/HTML/Using_HTML5_audio_and_video#Seeking_through_media
Edit:
Het werkt in Chrome, maar Firefox stopt al met laden na 2 bestanden, ook als ik maar 10 bestanden wil downloaden. Ik download ze 1 voor 1 (de volgende wordt geladen bij sound.one('canplaythrough', function() { // download nieuwe });
Weet iemand nog een andere manier die wél in alle browsers werkt?
Gewijzigd op 27/07/2014 16:35:33 door Lord Gaga
