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84 lines
2.4 KiB
JavaScript
84 lines
2.4 KiB
JavaScript
//
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// audioMuteOverlay.js
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//
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// client script that creates an overlay to provide mute feedback
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//
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// Created by Triplelexx on 17/03/09
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// Reworked by Seth Alves on 2019-2-17
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// Copyright 2017 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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"use strict";
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/* global Audio, Script, Overlays, Quat, MyAvatar */
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(function() { // BEGIN LOCAL_SCOPE
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var lastInputLoudness = 0.0;
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var sampleRate = 8.0; // Hz
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var attackTC = Math.exp(-1.0 / (sampleRate * 0.500)) // 500 milliseconds attack
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var releaseTC = Math.exp(-1.0 / (sampleRate * 1.000)) // 1000 milliseconds release
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var holdReset = 2.0 * sampleRate; // 2 seconds hold
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var holdCount = 0;
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var warningOverlayID = null;
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function showWarning() {
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if (warningOverlayID) {
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return;
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}
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warningOverlayID = Overlays.addOverlay("text3d", {
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name: "Muted-Warning",
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localPosition: { x: 0.2, y: -0.35, z: -1.0 },
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localOrientation: Quat.fromVec3Degrees({ x: 0.0, y: 0.0, z: 0.0, w: 1.0 }),
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text: "Warning: you are muted",
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textAlpha: 1,
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color: { red: 226, green: 51, blue: 77 },
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backgroundAlpha: 0,
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lineHeight: 0.042,
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visible: true,
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ignoreRayIntersection: true,
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drawInFront: true,
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grabbable: false,
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parentID: MyAvatar.SELF_ID,
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parentJointIndex: MyAvatar.getJointIndex("_CAMERA_MATRIX")
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});
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};
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function hideWarning() {
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if (!warningOverlayID) {
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return;
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}
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Overlays.deleteOverlay(warningOverlayID);
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warningOverlayID = null;
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}
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function cleanup() {
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Overlays.deleteOverlay(warningOverlayID);
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}
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Script.scriptEnding.connect(cleanup);
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Script.setInterval(function() {
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var inputLoudness = Audio.inputLevel;
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var tc = (inputLoudness > lastInputLoudness) ? attackTC : releaseTC;
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inputLoudness += tc * (lastInputLoudness - inputLoudness);
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lastInputLoudness = inputLoudness;
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if (Audio.muted && inputLoudness > 0.3) {
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holdCount = holdReset;
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} else {
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holdCount = Math.max(holdCount - 1, 0);
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}
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if (holdCount > 0) {
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showWarning();
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} else {
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hideWarning();
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}
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}, 1000.0 / sampleRate);
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}()); // END LOCAL_SCOPE
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