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Rename and initialize vars

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This commit is contained in:
Eric Rosenbaum 2018-02-06 11:06:48 -05:00
parent c661ac7cce
commit 0a239005a9
1 changed files with 24 additions and 10 deletions
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32
src/blocks/scratch3_sensing.js
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@ -15,6 +15,24 @@ class Scratch3SensingBlocks {
*/ */
this._answer = ''; this._answer = '';
/**
* The timer utility.
* @type {Timer}
*/
this._timer = new Timer();
/**
* The stored microphone loudness measurement.
* @type {number}
*/
this._cachedLoudness = -1;
/**
* The time of the most recent microphone loudness measurement.
* @type {number}
*/
this._cachedLoudnessTimestamp = 0;
/** /**
* The list of queued questions and respective `resolve` callbacks. * The list of queued questions and respective `resolve` callbacks.
* @type {!Array} * @type {!Array}
@ -24,8 +42,6 @@ class Scratch3SensingBlocks {
this.runtime.on('ANSWER', this._onAnswer.bind(this)); this.runtime.on('ANSWER', this._onAnswer.bind(this));
this.runtime.on('PROJECT_START', this._resetAnswer.bind(this)); this.runtime.on('PROJECT_START', this._resetAnswer.bind(this));
this.runtime.on('PROJECT_STOP_ALL', this._clearAllQuestions.bind(this)); this.runtime.on('PROJECT_STOP_ALL', this._clearAllQuestions.bind(this));
this.timer = new Timer();
} }
/** /**
@ -223,16 +239,14 @@ class Scratch3SensingBlocks {
if (typeof this.runtime.currentStepTime === 'undefined') return -1; if (typeof this.runtime.currentStepTime === 'undefined') return -1;
// Only measure loudness once per step // Only measure loudness once per step
if (this.loudnessTime) { const timeSinceLoudness = this._timer.time() - this._cachedLoudnessTimestamp;
const timeSinceLoudness = this.timer.time() - this.loudnessTime;
if (timeSinceLoudness < this.runtime.currentStepTime) { if (timeSinceLoudness < this.runtime.currentStepTime) {
return this.loudness; return this._cachedLoudness;
}
} }
this.loudnessTime = this.timer.time(); this._cachedLoudnessTimestamp = this._timer.time();
this.loudness = this.runtime.audioEngine.getLoudness(); this._cachedLoudness = this.runtime.audioEngine.getLoudness();
return this.loudness; return this._cachedLoudness;
} }
getAttributeOf (args) { getAttributeOf (args) {