Particle Manager has new processors and gravity well support

Author: photonstorm

v3/src/gameobjects/particles/ParticleEmitterManager.js

@@ -1,6 +1,7 @@
 var Class = require('../../utils/Class');
 var Components = require('../components');
 var GameObject = require('../GameObject');
+var GravityWell = require('./GravityWell');
 var List = require('../../structs/List');
 var ParticleEmitter = require('./ParticleEmitter');
 var Render = require('./ParticleManagerRender');
@@ -42,6 +43,8 @@ var ParticleEmitterManager = new Class({
 
         this.emitters = new List(this);
 
+        this.wells = new List(this);
+
         if (emitters !== undefined)
         {
             //  An array of emitter configs?
@@ -118,6 +121,16 @@ var ParticleEmitterManager = new Class({
         return this.addEmitter(new ParticleEmitter(this, config));
     },
 
+    addGravityWell: function (well)
+    {
+        return this.wells.add(well);
+    },
+
+    createGravityWell: function (config)
+    {
+        return this.addGravityWell(new GravityWell(config));
+    },
+
     emit: function (count, x, y)
     {
         var emitters = this.emitters.list;
@@ -154,6 +167,11 @@ var ParticleEmitterManager = new Class({
         return this;
     },
 
+    getProcessors: function ()
+    {
+        return this.wells.getAll('active', true);
+    },
+
     preUpdate: function (time, delta)
     {
         //  Scale the delta