#ifndef ANGLE_H
#define ANGLE_H

#include <cmath>

class Angle {

public:

	/** get the radians from (x1,y1) to (x2,y2) */
	static float getRAD(const float x1, const float y1, const float x2, const float y2) {
		const float tmp = std::atan2(y2-y1, x2-x1);
		return (tmp < 0) ? (tmp + 2*M_PI) : (tmp);
	}

	/** get the degrees from (x1,y1) to (x2,y2) */
	static float getDEG(const float x1, const float y1, const float x2, const float y2) {
		return radToDeg(getRAD(x1,y1,x2,y2));
	}

	/** convert degrees to radians */
	static float degToRad(const float deg) {
		return deg / 180 * M_PI;
	}

	/** convert radians to degrees */
	static float radToDeg(const float rad) {
		return rad * 180 / M_PI;
	}

};

#endif // ANGLE_H