#ifndef COMPUTE_ANGLE_HPP #define COMPUTE_ANGLE_HPP struct FixedPointCoordinate; struct ComputeAngle { // Get angle of line segment (A,C)->(C,B) // atan2 magic, formerly cosine theorem static double OfThreeFixedPointCoordinates(const FixedPointCoordinate &first, const FixedPointCoordinate &second, const FixedPointCoordinate &third) noexcept; }; #endif // COMPUTE_ANGLE_HPP