//------------------------------------------------------------------------------
//      Copyright (c) 2001-2002, Haiku, Inc.
//
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//      The above copyright notice and this permission notice shall be included in
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//
//      File Name:              Angle.h
//      Author:                 DarkWyrm <bpmagic@columbus.rr.com>
//      Description:    Angle class for speeding up trig functions
//  
//------------------------------------------------------------------------------
#ifndef _ANGLE_H_
#define _ANGLE_H_

#include <GraphicsDefs.h>

/*!
        \class Angle Angle.h
        \brief Class for speeding up trig functions. Works in degrees only.
*/
class Angle {
public:
                                                Angle(float angle);
                                                Angle();
virtual                                 ~Angle();

                void                    Normalize();

                float                   Sine(void);
                Angle                   InvSine(float value);

                float                   Cosine(void);
                Angle                   InvCosine(float value);

                float                   Tangent(int *status=NULL);
                Angle                   InvTangent(float value);

                uint8                   Quadrant(void);
                Angle                   Constrain180(void);
                Angle                   Constrain90(void);

                void                    SetValue(float angle);
                float                   Value(void) const;

                Angle                   &operator=(const Angle &from);
                Angle                   &operator=(const float &from);
                Angle                   &operator=(const long &from);
                Angle                   &operator=(const int &from);

                bool                    operator==(const Angle &from);
                bool                    operator!=(const Angle &from);
                bool                    operator<(const Angle &from);
                bool                    operator>(const Angle &from);
                bool                    operator>=(const Angle &from);
                bool                    operator<=(const Angle &from);

protected:      
                void                    _InitTrigTables(void);

                float                   fAngleValue;
};

#endif