     @buffer.renderXY(@game.stage, 0, 0, false)
 
   update:->
-    @_init() if @photons.countLiving() < 4
+    @_init() if @photons.countLiving() < 3
 
   destroy:->
 

      obj.destroy()
    photon.checkWorldBounds = true
    photon.events.onOutOfBounds.add (obj)=>
      @photons.remove(obj)

    @photons.add(photon)

    @square.height = 450
    @square.anchor.x = 0.5
    @square.anchor.y = 0.5
    @square.alpha = 0.02

    @photons = @game.add.group()

