Licson Lee
61 lines
1.5 KiB
JavaScript
61 lines
1.5 KiB
JavaScript
var bkcore = bkcore || {};
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bkcore.Audio = {};
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bkcore.Audio.sounds = {};
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bkcore.Audio.init = function(){
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bkcore.Audio._ctx = new (window.AudioContext||window.webkitAudioContext);
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bkcore.Audio._panner = bkcore.Audio._ctx.createPanner();
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bkcore.Audio._panner.connect(bkcore.Audio._ctx.destination);
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bkcore.Audio.posMultipler = 1.5;
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};
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bkcore.Audio.init();
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bkcore.Audio.addSound = function(src, id, loop, callback){
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var ctx = bkcore.Audio._ctx;
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var audio = new Audio();
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audio.src = src;
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audio.addEventListener('canplay', callback, false);
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audio.loop = loop;
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audio.load();
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if(ctx){
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var mediasrc = ctx.createMediaElementSource(audio);
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mediasrc.connect(bkcore.Audio._panner);
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}
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bkcore.Audio.sounds[id] = audio;
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};
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bkcore.Audio.play = function(id){
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if(bkcore.Audio.sounds[id].currentTime > 0){
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bkcore.Audio.sounds[id].pause();
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bkcore.Audio.sounds[id].currentTime = 0;
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}
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bkcore.Audio.sounds[id].play();
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};
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bkcore.Audio.stop = function(id){
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bkcore.Audio.sounds[id].pause();
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bkcore.Audio.sounds[id].currentTime = 0;
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};
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bkcore.Audio.volume = function(id,volume){
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bkcore.Audio.sounds[id].volume = volume;
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};
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bkcore.Audio.setListenerPos = function(vec){
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var panner = bkcore.Audio._panner;
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var vec2 = vec.normalize();
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panner.setPosition(
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vec2.x * bkcore.Audio.posMultipler,
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vec2.y * bkcore.Audio.posMultipler,
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vec2.z * bkcore.Audio.posMultipler
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);
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};
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bkcore.Audio.setListenerVelocity = function(vec){
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var panner = bkcore.Audio._panner;
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panner.setVelocity(vec.x, vec.y, vec.z);
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}; |