Angle detection by J.R.D.R.

 

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Custom math function calculates the angle between two points. The returned values are between –180…180 degrees and never divides by zero. atan2 ( startPoint, endpoint )

on atan2 pt1, pt2   sl = pt2 - pt1   a = atan(sl[2],sl[1]) * 180 / pi   return a end