package pi1.blatt4;

/** Blatt 4 Aufgabe 4
 * DAS IST KEINE MUSTERLOESUNG, NUR EINE TEILLOESUNG
 * @author <a href="http://www.informatik.uni-mannheim.de/pi4/people/fuessler">Holger Fuessler</a>>
 * @version $Id$
*/

public class Angle {
    private double rad;

    /** This method normalizes the radians-value in rad() */
    private void normalize() {
	rad = rad % (2 * Math.PI);
    }

    /** creates an Angle object with a grad init value */
    static Angle createWithGrad(double grad) {
	Angle a = new Angle(0.0);
	a.setAsGrad(grad);
	return a;
    }
    
    /** constructor creating object with radians init value */
    Angle(double rad) {
	this.rad = rad;
	normalize();
    }
    
    /** returns angle in rad */
    double getAsRad() {
	return rad;
    }
    
    /** sets angle in rad */
    void setAsRad(double rad) {
	this.rad = rad;
	normalize();
    }
    
    /** gets angle as grad */
    double getAsGrad() {
	return rad * 180.0 / Math.PI;
    }
    
    /** sets angle as grad */
    void setAsGrad(double grad) {
	rad  = grad / (180.0 / Math.PI);		
	normalize();
    }
    
}