     flashDuration: 12
     flashCooldown: 0
     flashTargetAlpha: 0
+
+  defaultParams =
+    color: 'white'
+    duration: 12
+    targetAlpha: 0
 
   self.bind 'afterUpdate', ->
     if I.flashCooldown > 0

  @param {Number} [duration=12] How long the effect lasts
  @param {Number} [targetAlpha=0] The alpha value to fade to. By default, this is set to 0, which fades the color to transparent.
  ###
  flash: (color = 'white', duration = 12, targetAlpha = 0) ->
    I.flashColor = Color(color) 
    I.flashTargetAlpha = targetAlpha
    I.flashCooldown = duration
    I.flashDuration = duration


  camera.flash()
  # => Sets the flash effect variables to their default state. This will cause a white flash that will turn transparent in the next 12 frames.

  camera.flash
    color: 'green'
    duration: 30
  # => This flash effect will start off green and fade to transparent over 30 frames.

  camera.flash
    color: Color(255, 0, 0, 0)
    duration: 20
    targetAlpha: 1
  # => This flash effect will start off transparent and move toward red over 20 frames 
  </pre></code>  

