0d14e5a379
Needs a lot of cleanup. Data has been de-duplicated, and where identical copies existed, one of them has been replaced with a symlink. Some files have been excluded, such as binaries, installers and debug dumps. Some of that may still be present.
123 lines
No EOL
3.2 KiB
JavaScript
123 lines
No EOL
3.2 KiB
JavaScript
//
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// Maraca.js
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//
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// Created by Philip Rosedale on May 9, 2016
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// Copyright 2016 High Fidelity, Inc.
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//
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// reates a maraca sound when shaken
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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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function Timer() {
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var time;
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var count = 0;
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var totalTime = 0;
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this.reset = function() {
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count = 0;
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totalTime = 0;
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}
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this.start = function() {
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time = new Date().getTime();
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}
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this.record = function() {
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var elapsed = new Date().getTime() - time;
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totalTime += elapsed;
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count++;
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return elapsed;
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}
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this.count = function() {
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return count;
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}
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this.average = function() {
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return (count == 0) ? 0 : totalTime / count;
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}
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this.elapsed = function() {
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return new Date().getTime() - time;
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}
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}
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(function () {
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var entityID,
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wantDebug = true,
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timer = new Timer(),
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playTimer = new Timer(),
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TRIGGER_SPEED = 0.06,
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moving = false,
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RED = { red: 255, green: 0, blue: 0 },
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GRAY = { red: 128, green: 128, blue: 128 },
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averageVelocity = { x: 0, y: 0, z: 0 },
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VELOCITY_AVERAGE_RATE = 0.5,
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VOLUME = 2.0,
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MIN_TIME_BETWEEN_SOUNDS = 0.1,
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soundUp = SoundCache.getSound("https://s3.amazonaws.com/hifi-public/philip/maraca.wav"),
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soundDown = SoundCache.getSound("https://s3.amazonaws.com/hifi-public/philip/maraca3.wav")
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function printDebug(message) {
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if (wantDebug) {
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print(message);
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}
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}
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function maybePlaySound() {
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var deltaTime = timer.elapsed() / 1000.0;
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if (deltaTime == 0.0) {
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return;
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}
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properties = Entities.getEntityProperties(entityID);
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// Compute the pseudoAcceleration of the object as the instantaneous speed dotted with its own history
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var relativeSpeed = Vec3.dot(properties.velocity, averageVelocity);
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var speed = Vec3.length(properties.velocity);
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if (relativeSpeed > TRIGGER_SPEED) {
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moving = true;
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Entities.editEntity(entityID, { color: GRAY });
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}
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if (moving && (relativeSpeed < TRIGGER_SPEED)) {
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moving = false;
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var volume = Math.min(Vec3.length(averageVelocity) * VOLUME, 1.0);
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if (playTimer.elapsed() / 1000 > MIN_TIME_BETWEEN_SOUNDS) {
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Entities.editEntity(entityID, { color: RED });
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var up = Vec3.dot(averageVelocity, { x: 0, y: 1, z: 0 });
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Audio.playSound( up > 0 ? soundUp : soundDown, {
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position: properties.position,
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volume: volume,
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loop: false } );
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playTimer.start();
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}
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}
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averageVelocity = Vec3.sum( Vec3.multiply(VELOCITY_AVERAGE_RATE, properties.velocity),
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Vec3.multiply(1.0 - VELOCITY_AVERAGE_RATE, averageVelocity) );
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timer.start();
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}
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this.startNearGrab = function() {
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timer.start();
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playTimer.start();
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}
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this.continueNearGrab = function() {
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// Check object velocity
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maybePlaySound();
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}
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this.releaseGrab = function() {
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printDebug("released maraca...");
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}
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this.preload = function (givenEntityID) {
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printDebug("load maraca...");
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entityID = givenEntityID;
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};
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this.unload = function () {
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printDebug("Unload maraca...");
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};
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});
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