Tone.js/Tone/signal/SignalBase.js
2015-06-20 15:50:57 -04:00

44 lines
No EOL
1.3 KiB
JavaScript

define(["Tone/core/Tone"], function(Tone){
"use strict";
/**
* @class Base class for all Signals. Used Internally.
*
* @constructor
* @extends {Tone}
*/
Tone.SignalBase = function(){};
Tone.extend(Tone.SignalBase);
/**
* When signals connect to other signals or AudioParams,
* they take over the output value of that signal or AudioParam.
* For all other nodes, the behavior is the same as a default <code>connect</code>.
*
* @override
* @param {AudioParam|AudioNode|Tone.Signal|Tone} node
* @param {number} [outputNumber=0] The output number to connect from.
* @param {number} [inputNumber=0] The input number to connect to.
* @returns {Tone.SignalBase} this
*/
Tone.SignalBase.prototype.connect = function(node, outputNumber, inputNumber){
//zero it out so that the signal can have full control
if (node.constructor === Tone.Signal){
//cancel changes
node._value.cancelScheduledValues(0);
//reset the value
node._value.value = 0;
//mark the value as overridden
node.overridden = true;
} else if (node instanceof AudioParam){
node.cancelScheduledValues(0);
node.value = 0;
}
Tone.prototype.connect.call(this, node, outputNumber, inputNumber);
return this;
};
return Tone.SignalBase;
});