[Ash.]

This is pretty awesome! Though, I didn't like the parts where you have to add bits into code, and so therefore:
http://pastebin.com/SpuF2dfg

I've added the ALS hooking mechanisms so all the user has to do is include the file!

In my copy, I fixed the issue described in the post below. If the player hasn't targeted anyone in the past, it passes INVALID_PLAYER_ID to the callback.