I'm trying to create an invisible line formed by the direction an object is facing and its current hotspot, and when the Y value of another object is greater than a spot on that line (determined by that object's X position), then "do something." In this case, I just made it paste to the background repeatedly so I can see where the math actually draws the line. I'm not sure how to make this work, and what I do have works even worse at different angles. Any help would be appreciated.
An example .mfa is attached for what I've gotten so far.