soundbox/soundbox.js

function SoundBox() {
	this.sounds = {};
	this.load = function(sound_name, path, callback) {
		this.sounds[sound_name] = new Audio(path);
		if(typeof callback == "function")
			this.sounds[sound_name].addEventListener("canplaythrough", callback);
		else
			return new Promise((resolve, reject) => this.sounds[sound_name].addEventListener("canplaythrough", resolve), this.sounds[sound_name].addEventListener("error", reject));
	};
	
	this.remove = function(sound_name) {
		if(typeof this.sounds != "undefined")
			delete this.sounds[sound_name];
		if(typeof this.sound_callbacks == "function")
			delete this.sound_callbacks[sound_name];
	};
	
	this.play = function(sound_name, callback) {
		if(typeof this.sounds[sound_name] == "undefined") {
			console.error("Can't find sound called '" + sound_name + "'.");
			return false;
		}
		
		var soundInstance = this.sounds[sound_name].cloneNode(true);
		
		soundInstance.play();
		
		if(typeof callback == "function") {
			console.log("Adding callback");
			soundInstance.addEventListener("ended", callback);
			return true;
		}
		else {
			console.log("Returning promise");
			return new Promise((resolve, reject) => soundInstance.addEventListener("ended", resolve));
		}
	};
}