text: var config = {
      type: Phaser.WEBGL,
      width: 800,
      height: 600,
      backgroundColor: '#000',
      parent: 'phaser-example',
      scene: {
          preload: preload,
          create: create
      }
  };
  
  var game = new Phaser.Game(config);
  
  function preload ()
  {
      this.load.atlas('flares', 'assets/particles/flares.png', 'assets/particles/flares.json');
  }
  
  function create ()
  {
      var rect1 = new Phaser.Geom.Rectangle(100, 50, 100, 100);
      var rect2 = new Phaser.Geom.Rectangle(200, 350, 400, 200);
      var rect3 = new Phaser.Geom.Rectangle(550, 150, 200, 100);
  
      var rectangles = {
          contains: function (x, y)
          {
              return Phaser.Geom.Rectangle.Contains(rect1, x, y) ||
                     Phaser.Geom.Rectangle.Contains(rect2, x, y) ||
                     Phaser.Geom.Rectangle.Contains(rect3, x, y);
          }
      };
  
      var particles = this.add.particles('flares');
  
      particles.createEmitter({
          frame: [ 'red', 'green', 'blue' ],
          x: 400,
          y: 100,
          speed: 300,
          gravityY: 400,
          lifespan: 4000,
          scale: 0.4,
          blendMode: 'ADD',
          deathZone: { type: 'onEnter', source: rectangles }
      });
  
      var graphics = this.add.graphics();
  
      graphics.lineStyle(1, 0x00ff00, 1);
  
      graphics.strokeRectShape(rect1);
      graphics.strokeRectShape(rect2);
      graphics.strokeRectShape(rect3);
  
  }
  