Destroy Character if not in Shadow

Hi there, I'm working in a new game but it's a kind of special game, a game where you are a shadow and you need to be in the shadows to not die, ofcourse it will be a puzzle platform game.

I'll let the images explain themself:

<img src="http://i.imgur.com/bPvkQ.png" border="0">

So I'm using the Canvas plugin to draw lines that draw shadows, the question is - How can I specify a state while the player is between the shadow lines and how to specify another for when the player isn't between they. -

Capx: Main Capx

Event Sheet ScreenShot:

<img src="http://i.imgur.com/PYO6a.png" border="0">

• Thanks for helping :D

use a sprite that's is is always center on the player and the light source.

width = distance(player, light)

height = 20

if the sprite "is overlapping; invert" shadow casting objects. Then kill player.

use a sprite that's is is always center on the player and the light source.

width = distance(player, light)

height = 20

if the sprite "is overlapping; invert" shadow casting objects. Then kill player.

I didn't get what are you trying to explain.

PD: Added a screenshot of the event sheet.