U got an idea how to easily make an event sheet, that checks if 2 objects can "see" each other? (on 2D topview like the ghostshooter tut)
The condition is there are no solid objects crossing a straight line between them.
And maybe an area of the current (view) angle of both objects is only affected, so that if an enemy is turned around not looking at you he doesnt see u, even if he could.
Thanks for your suggestions :)