basics of virtual baton

examples/tests/batonSoundEntityTest/batonSoundTestEntityScript.js

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+
+(function() {
+    Script.include("../../libraries/virtualBaton.js");
+
+    var baton;
+    var iOwn = false;
+    var updateLoopConnected = false;
+
+    var _this;
+    BatonSoundEntity = function() {
+        _this = this;
+        _this.drumSound = SoundCache.getSound("https://s3.amazonaws.com/hifi-public/sounds/Drums/deepdrum1.wav");
+        _this.injectorOptions = {position: MyAvatar.position, loop: false, volume: 0.7};
+    };
+
+    function startUpdate() {
+        iOwn = true;
+        updateLoopConnected = true;
+        print("START UPDATE");
+        Script.update.connect(_this.update);
+    }
+
+    function stopUpdateAndReclaim() {
+        // when the baton is release
+        print("CLAIM BATON")
+        if (updateLoopConnected === true) {
+            updateLoopConnected = false;
+            Script.update.disconnect(_this.update);
+        }
+        iOwn = false;
+
+
+        // hook up callbacks to the baton
+        baton.claim(startUpdate, stopUpdateAndReclaim);
+    }
+
+    BatonSoundEntity.prototype = {
+
+        update: function() {
+            if (iOwn === false) {
+                return;
+            }
+
+            print("EBL I AM UPDATING");
+        },
+
+        preload: function(entityID) {
+            _this.entityID = entityID;
+            print("PRELOAD ENTITY SCRIPT!!!");
+            baton = virtualBaton({
+                // One winner for each entity
+                batonName: "io.highfidelity.soundEntityBatonTest:" + _this.entityID
+            });
+            Audio.playSound(_this.drumSound, _this.injectorOptions);
+            stopUpdateAndReclaim();
+        },
+
+        unload: function() {
+            if (updateLoopConnected === true) {
+                updateLoopConnected = false;
+                Script.update.disconnect(_this.update);
+            }
+        }
+
+   
+    };
+
+    // entity scripts always need to return a newly constructed object of our type
+    return new BatonSoundEntity();
+});

examples/tests/batonSoundEntityTest/batonSoundTestEntitySpawner.js

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+  var orientation = Camera.getOrientation();
+  orientation = Quat.safeEulerAngles(orientation);
+  orientation.x = 0;
+  orientation = Quat.fromVec3Degrees(orientation);
+  var center = Vec3.sum(MyAvatar.position, Vec3.multiply(3, Quat.getFront(orientation)));
+
+  // Math.random ensures no caching of script
+  var SCRIPT_URL = Script.resolvePath("batonSoundTestEntityScript.js?v1" + Math.random())
+
+  var soundEntity = Entities.addEntity({
+      type: "Box",
+      color: {
+          red: 200,
+          green: 10,
+          blue: 10
+      },
+      position: center,
+      dimensions: {
+          x: 0.1,
+          y: 0.1,
+          z: 0.1
+      },
+      script: SCRIPT_URL
+  });
+
+
+  function cleanup() {
+      Entities.deleteEntity(soundEntity);
+  }
+
+  Script.scriptEnding.connect(cleanup);