       @_addPhoton(data.r * 0.5, data.x, data.y, -data.vy, -data.vx, data.colour)
 
   _addPhoton:(r, x, y, vx, vy, colour)->
-    r = 4 if r < 4
+    r = 16 if r < 16
     photon = @game.add.sprite(x, y, 'circle')
     @game.physics.enable(photon, Phaser.Physics.ARCADE)
     photon.width = r

    @_addPhoton(64, 400, 225, 0, -100, 0x00ffff)

  _split:=>
    return if @photons.countLiving() > 500
    spawn = [] 
    @photons.forEach (photon)=>
      data =

    photon.body.velocity.y = vy
    photon.tint = colour
    photon.blendMode = Phaser.blendModes.SCREEN
    fade = @game.add.tween(photon)
    fade.to({ alpha: 0 }, 5000, Phaser.Easing.Linear.None, true)
    fade.onComplete.add (obj)=>
      obj.destroy()
    photon.checkWorldBounds = true
    photon.events.onOutOfBounds.add (obj)=>
      @photons.remove(obj)

    @photons.add(photon)

