Tone.js/Tone/signal/SignalOperator.ts
Yotam Mann d6143a0e60 adding new base class for some signals
replaces SignalBase
2019-07-11 17:13:58 -04:00

29 lines
1 KiB
TypeScript

import { optionsFromArguments } from "..//core/util/Defaults";
import { Param } from "../core/context/Param";
import { InputNode, ToneAudioNode, ToneAudioNodeOptions } from "../core/context/ToneAudioNode";
import { Signal } from "./Signal";
/**
* A signal operator has an input and output and modifies the signal.
*/
export abstract class SignalOperator<Options extends ToneAudioNodeOptions> extends ToneAudioNode<Options> {
constructor(options?: Partial<Options>);
constructor() {
super(Object.assign(optionsFromArguments(SignalOperator.getDefaults(), arguments, ["context"])));
}
connect(destination: InputNode, outputNum = 0, inputNum = 0): this {
if (destination instanceof Param || (destination instanceof Signal && destination.override)) {
// cancel changes
destination.cancelScheduledValues(0);
// reset the value
destination.setValueAtTime(0, 0);
// mark the value as overridden
if (destination instanceof Signal) {
destination.overridden = true;
}
}
super.connect(destination, outputNum, inputNum);
return this;
}
}