I had another account here but i can't remember the username lol. Well, here we go:
I'm not sure how to make this. I have a "vision" sprite which's opacity is 0, thats the characters vision, ok. So, when vision is over "Enemy" and if it STILL is over "Enemy" 1 - 2 seconds after, player dies.
Like looking on Slender and after a certain time he catches you >:O
Hope you understand, sry for bad english