106 lines
2.5 KiB
JavaScript
106 lines
2.5 KiB
JavaScript
window.Loader = {};
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window.Library = {
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images: {},
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sounds: {}
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};
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Loader.load = function(progressCallback){
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var totalAssets = Loader.sceneSources.length + Loader.imageConfigs.length + Loader.soundConfigs.length;
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var assetsLoaded = 0;
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subscribe("assetLoaded", function(){
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assetsLoaded++;
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progressCallback(assetsLoaded/totalAssets);
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});
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// Gotta LOAD 'EM ALL
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return new RSVP.Promise(function(resolve){
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var loadPromises = [];
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// All scenes
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Loader.sceneSources.forEach(function(src){
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loadPromises.push( Loader.loadScene(src) );
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});
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// All images
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Loader.imageConfigs.forEach(function(config){
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loadPromises.push( Loader.loadImage(config) );
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});
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// All sounds
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Loader.soundConfigs.forEach(function(config){
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loadPromises.push( Loader.loadSound(config) );
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});
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// Go go go!
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RSVP.all(loadPromises).then(resolve);
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});
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};
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/////////////////////////////
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// IMAGES ///////////////////
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/////////////////////////////
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Loader.imageConfigs = [];
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Loader.addImages = function(imageConfigs){
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Loader.imageConfigs = Loader.imageConfigs.concat(imageConfigs);
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};
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Loader.loadImage = function(imageConfig){
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return new RSVP.Promise(function(resolve){
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var img = new Image();
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var id = imageConfig.id;
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Library.images[id] = img; // ADD TO LIBRARY
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img.onload = function(){
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publish("assetLoaded");
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resolve();
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}
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img.src = imageConfig.src;
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});
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};
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/////////////////////////////
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// SCENES ///////////////////
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/////////////////////////////
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Loader.sceneSources = [];
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Loader.addScenes = function(sceneSources){
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Loader.sceneSources = Loader.sceneSources.concat(sceneSources);
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};
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Loader.loadScene = function(src){
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var loadDataPromise = new RSVP.Promise(function(resolve){
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var xhr = new XMLHttpRequest();
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xhr.open("GET", src);
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xhr.onload = function() {
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if(xhr.status===200){
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Game.parseSceneMarkdown(xhr.responseText); // PARSE INTO GAME
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publish("assetLoaded");
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resolve();
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}
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};
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xhr.send();
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});
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};
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/////////////////////////////
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// SOUNDS ///////////////////
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/////////////////////////////
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Loader.soundConfigs = [];
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Loader.addSounds = function(soundConfigs){
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Loader.soundConfigs = Loader.soundConfigs.concat(soundConfigs);
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};
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Loader.loadSound = function(soundConfig){
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return new RSVP.Promise(function(resolve){
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var sound = new Howl({
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src: [soundConfig.src]
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});
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var id = soundConfig.id;
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Library.sounds[id] = sound; // ADD TO LIBRARY
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sound.once("load",function(){
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publish("assetLoaded");
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resolve();
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});
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});
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};
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