Particle Systems

Source/Core/Math.js

@@ -740,7 +740,7 @@ define([
     };
 
     /**
-     * Generates a random number in the range of [0.0, 1.0)
+     * Generates a random floating point number in the range of [0.0, 1.0)
      * using a Mersenne twister.
      *
      * @returns {Number} A random number in the range of [0.0, 1.0).
@@ -752,6 +752,18 @@ define([
         return randomNumberGenerator.random();
     };
 
+
+    /**
+     * Generates a random number between two numbers.
+     *
+     * @param {Number} min The minimum value.
+     * @param {Number} max The maximum value.
+     * @returns {Number} A random number between the min and max.
+     */
+    CesiumMath.randomBetween = function(min, max) {
+        return CesiumMath.nextRandomNumber() * (max - min) + min;
+    };
+
     /**
      * Computes <code>Math.acos(value)</acode>, but first clamps <code>value</code> to the range [-1.0, 1.0]
      * so that the function will never return NaN.

Source/DataSources/DataSourceDisplay.js

@@ -20,6 +20,7 @@ define([
         './GeometryVisualizer',
         './LabelVisualizer',
         './ModelVisualizer',
+        './ParticleSystemVisualizer',
         './PathVisualizer',
         './PointVisualizer',
         './PolygonGeometryUpdater',
@@ -48,6 +49,7 @@ define([
         GeometryVisualizer,
         LabelVisualizer,
         ModelVisualizer,
+        ParticleSystemVisualizer,
         PathVisualizer,
         PointVisualizer,
         PolygonGeometryUpdater,
@@ -123,7 +125,8 @@ define([
                 new LabelVisualizer(entityCluster, entities),
                 new ModelVisualizer(scene, entities),
                 new PointVisualizer(entityCluster, entities),
-                new PathVisualizer(scene, entities)];
+                new PathVisualizer(scene, entities),
+                new ParticleSystemVisualizer(scene, entities)];
     };
 
     defineProperties(DataSourceDisplay.prototype, {

Source/DataSources/Entity.js

@@ -22,6 +22,7 @@ define([
         './EllipsoidGraphics',
         './LabelGraphics',
         './ModelGraphics',
+        './ParticleSystemGraphics',
         './PathGraphics',
         './PointGraphics',
         './PolygonGraphics',
@@ -54,6 +55,7 @@ define([
         EllipsoidGraphics,
         LabelGraphics,
         ModelGraphics,
+        ParticleSystemGraphics,
         PathGraphics,
         PointGraphics,
         PolygonGraphics,
@@ -107,6 +109,7 @@ define([
      * @param {EllipsoidGraphics} [options.ellipsoid] A ellipsoid to associate with this entity.
      * @param {LabelGraphics} [options.label] A options.label to associate with this entity.
      * @param {ModelGraphics} [options.model] A model to associate with this entity.
+     * @param {ParticleSystemGraphics} [options.particleSystem] A particle system to associate with this entity.
      * @param {PathGraphics} [options.path] A path to associate with this entity.
      * @param {PointGraphics} [options.point] A point to associate with this entity.
      * @param {PolygonGraphics} [options.polygon] A polygon to associate with this entity.
@@ -133,7 +136,7 @@ define([
         this._show = defaultValue(options.show, true);
         this._parent = undefined;
         this._propertyNames = ['billboard', 'box', 'corridor', 'cylinder', 'description', 'ellipse', //
-                               'ellipsoid', 'label', 'model', 'orientation', 'path', 'point', 'polygon', //
+                               'ellipsoid', 'label', 'model', 'orientation', 'particleSystem', 'path', 'point', 'polygon', //
                                'polyline', 'polylineVolume', 'position', 'properties', 'rectangle', 'viewFrom', 'wall'];
 
         this._billboard = undefined;
@@ -156,6 +159,8 @@ define([
         this._modelSubscription = undefined;
         this._orientation = undefined;
         this._orientationSubscription = undefined;
+        this._particleSystem = undefined;
+        this._particleSystemSubscription = undefined;
         this._path = undefined;
         this._pathSubscription = undefined;
         this._point = undefined;
@@ -391,6 +396,12 @@ define([
          * @type {Property}
          */
         orientation : createPropertyDescriptor('orientation'),
+        /**
+         * Gets or sets the particle system.
+         * @memberof Entity.prototype
+         * @type {ParticleSystemGraphics}
+         */
+        particleSystem : createPropertyTypeDescriptor('particleSystem', ParticleSystemGraphics),
         /**
          * Gets or sets the path.
          * @memberof Entity.prototype