From c5247ca65b0cfde24b83fd7e8969dc9c9111ae96 Mon Sep 17 00:00:00 2001
From: Philip Rosedale <philip@highfidelity.io>
Date: Fri, 5 Dec 2014 08:45:00 -0800
Subject: [PATCH] Add ability to set injector properties during playing, and
 orbitingSound.js

---
 examples/orbitingSound.js                     | 49 +++++++++++++++++++
 .../audio/src/AudioScriptingInterface.cpp     |  7 +++
 libraries/audio/src/AudioScriptingInterface.h |  2 +
 3 files changed, 58 insertions(+)
 create mode 100644 examples/orbitingSound.js

diff --git a/examples/orbitingSound.js b/examples/orbitingSound.js
new file mode 100644
index 0000000000..903d73cebc
--- /dev/null
+++ b/examples/orbitingSound.js
@@ -0,0 +1,49 @@
+//
+//  orbitingSound.js
+//  examples
+//
+//  Created by Philip Rosedale on December 4, 2014
+//  Copyright 2014 High Fidelity, Inc.
+//
+//  An object playing a sound appears and circles you, changing brightness with the audio playing.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+var RADIUS = 2.0;
+var orbitCenter = Vec3.sum(Camera.position, Vec3.multiply(Quat.getFront(Camera.getOrientation()), RADIUS));
+var time = 0;
+var SPEED = 1.0;
+var currentPosition = { x: 0, y: 0, z: 0 };
+var trailingLoudness = 0.0;
+
+var soundClip = SoundCache.getSound("https://s3.amazonaws.com/hifi-public/sounds/Tabla+Loops/Tabla1.wav");
+
+var properties = { 
+        type: "Box",
+        position: orbitCenter, 
+        dimensions: { x: 0.25, y: 0.25, z: 0.25 },
+        color: { red: 100, green: 0, blue : 0 }
+    };
+
+var objectId = Entities.addEntity(properties);
+var sound = Audio.playSound(soundClip, { position: orbitCenter, loop: true, volume: 0.5 });
+
+function update(deltaTime) { 
+    time += deltaTime; 
+    currentPosition = { x: orbitCenter.x + Math.cos(time * SPEED) * RADIUS, y: orbitCenter.y, z: orbitCenter.z + Math.sin(time * SPEED) * RADIUS };
+    trailingLoudness = 0.9 * trailingLoudness + 0.1 * Audio.getLoudness(sound);
+    Entities.editEntity( objectId, { position: currentPosition, color: { red: Math.min(trailingLoudness * 2000, 255), green: 0, blue: 0 } } );
+    //if (Audio.isInjectorPlaying(sound)) {
+         Audio.setInjectorOptions(sound, { position: currentPosition });
+    //} else {
+     //   sound = Audio.playSound(soundClip, { position: orbitCenter, loop: true, volume: 0.5 });
+    //}
+}
+
+Script.scriptEnding.connect(function() {
+    Entities.deleteEntity(objectId);
+    Audio.stopInjector(sound);
+});
+
+Script.update.connect(update);
\ No newline at end of file
diff --git a/libraries/audio/src/AudioScriptingInterface.cpp b/libraries/audio/src/AudioScriptingInterface.cpp
index b604e2825b..8cd133ad40 100644
--- a/libraries/audio/src/AudioScriptingInterface.cpp
+++ b/libraries/audio/src/AudioScriptingInterface.cpp
@@ -85,6 +85,13 @@ bool AudioScriptingInterface::isInjectorPlaying(AudioInjector* injector) {
     return (injector != NULL);
 }
 
+void AudioScriptingInterface::setInjectorOptions(AudioInjector* injector, const AudioInjectorOptions& injectorOptions) {
+    AudioInjectorOptions optionsCopy = injectorOptions;
+    if (injector) {
+        injector->setOptions(optionsCopy);
+    }
+}
+
 float AudioScriptingInterface::getLoudness(AudioInjector* injector) {
     if (injector) {
         return injector->getLoudness();
diff --git a/libraries/audio/src/AudioScriptingInterface.h b/libraries/audio/src/AudioScriptingInterface.h
index 5b67666a97..b437286ecf 100644
--- a/libraries/audio/src/AudioScriptingInterface.h
+++ b/libraries/audio/src/AudioScriptingInterface.h
@@ -35,6 +35,8 @@ public slots:
     void stopInjector(AudioInjector* injector);
     bool isInjectorPlaying(AudioInjector* injector);
     
+    void setInjectorOptions(AudioInjector* injector, const AudioInjectorOptions& injectorOptions);
+    
     void injectorStopped();
     
 signals: