A single point in space, implementing all common Vector 2D calculations
Can this be used to see how much a rotating sprite is facing a position?
You can do that by just using the angle() system expression
I did not clarify what I meant. My mistake.
Angle() returns the angle between two points and does not factor in their facing angles. What I needed is to know how much object A is looking at point b. regardless of point B's facing or their angle to each other.
I was able to get what I needed though.
-> System: Set facingX to cos(myAngle)
-> System: Set facingY to sin(myAngle)
-> System: Set toTargetX to (inputTargetX - myX) ÷ distance(myX, myY, inputTargetX, inputTargetY)
-> System: Set toTargetY to (inputTargetY - myY) ÷ distance(myX, myY, inputTargetX, inputTargetY)
-> System: Set dot to (FacingX × ToTargetX) + (FacingY × ToTargetY)