dice don't go away unless 'X' key is clicked, added harmonicOscillator test script

examples/dice.js

@@ -13,7 +13,8 @@
 //
 
 var isDice = false; 
-var NUMBER_OF_DICE = 2; 
+var NUMBER_OF_DICE = 4; 
+var LIFETIME = 10000;                   //  Dice will live for about 3 hours
 var dice = [];
 var DIE_SIZE = 0.20;
 
@@ -50,7 +51,7 @@ var diceButton = Overlays.addOverlay("image", {
                 });
 
 var GRAVITY = -3.5;
-var LIFETIME = 300;
+
 // NOTE: angularVelocity is in radians/sec
 var MAX_ANGULAR_SPEED = Math.PI;
 
@@ -105,6 +106,7 @@ function mousePressEvent(event) {
     var clickedText = false;
     var clickedOverlay = Overlays.getOverlayAtPoint({x: event.x, y: event.y});
     if (clickedOverlay == offButton) {
+        deleteDice();
         Script.stop();
     } else if (clickedOverlay == diceButton) {
         var HOW_HARD = 2.0;
@@ -116,10 +118,8 @@ function mousePressEvent(event) {
 }
 
 function scriptEnding() {
-    deleteDice();
     Overlays.deleteOverlay(offButton);
     Overlays.deleteOverlay(diceButton);
-   
 }
 
 Entities.entityCollisionWithEntity.connect(entityCollisionWithEntity);

examples/harmonicOscillator.js

@@ -0,0 +1,65 @@
+// harmonicOscillator.js 
+// 
+// Created by Philip Rosedale on May 5, 2015 
+// Copyright 2015 High Fidelity, Inc.
+//
+// An object moves around the edge of a disc while 
+// changing color.  The script is continuously updating
+// position, velocity, rotation, and color.  The movement 
+// should appear perfectly smooth to someone else, 
+// provided their network connection is good.  
+//
+// Distributed under the Apache License, Version 2.0.
+// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+var ball, disc; 
+var time = 0.0; 
+var range = 1.0;
+var speed = 0.5;
+
+
+var basePosition = Vec3.sum(Camera.getPosition(), Quat.getFront(Camera.getOrientation()));
+
+ball = Entities.addEntity(
+  { type: "Box",
+    position: basePosition,
+	dimensions: { x: 0.1, y: 0.1, z: 0.1 },  
+    color: { red: 255, green: 0, blue: 255 }
+  });
+
+disc = Entities.addEntity(
+  { type: "Sphere",
+    position: basePosition,
+	dimensions: { x: range, y: range / 20.0, z: range },  
+    color: { red: 128, green: 128, blue: 128 }
+  });
+
+function update(deltaTime) {
+  time += deltaTime * speed;
+  if (!ball.isKnownID) {
+     ball = Entities.identifyEntity(ball);
+  }	 
+  rotation = Quat.angleAxis(time/Math.PI * 180.0, { x: 0, y: 1, z: 0 });
+  Entities.editEntity(ball, 
+	{
+	  color: { red: 255 * (Math.sin(time)/2.0 + 0.5), 
+               green: 255 - 255 * (Math.sin(time)/2.0 + 0.5), 
+               blue: 0 },
+	  position: { x: basePosition.x + Math.sin(time) / 2.0 * range, 
+                  y: basePosition.y, 
+				 z: basePosition.z + Math.cos(time) / 2.0 * range },  
+	  velocity: { x: Math.cos(time)/2.0 * range, 
+                  y: 0.0, 
+				 z: -Math.sin(time)/2.0 * range },
+	  rotation: rotation 
+    }); 
+}
+
+function scriptEnding() {
+    Entities.deleteEntity(ball);
+	Entities.deleteEntity(disc);
+}
+
+Script.scriptEnding.connect(scriptEnding);
+Script.update.connect(update);