//------------------------------------------------------------------------------
//	Copyright (c) 2001-2002, OpenBeOS
//
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//	copy of this software and associated documentation files (the "Software"),
//	to deal in the Software without restriction, including without limitation
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//	and/or sell copies of the Software, and to permit persons to whom the
//	Software is furnished to do so, subject to the following conditions:
//
//	The above copyright notice and this permission notice shall be included in
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//	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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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(void);
	virtual ~Angle(void);

	void Normalize(void);

	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:	
	float fAngleValue;
	void InitTrigTables(void);
};

#endif