1//------------------------------------------------------------------------------
2//	Copyright (c) 2001-2002, Haiku, Inc.
3//
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5//	copy of this software and associated documentation files (the "Software"),
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9//	Software is furnished to do so, subject to the following conditions:
10//
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21//
22//	File Name:		Angle.h
23//	Author:			DarkWyrm <bpmagic@columbus.rr.com>
24//	Description:	Angle class for speeding up trig functions
25//
26//------------------------------------------------------------------------------
27#ifndef _ANGLE_H_
28#define _ANGLE_H_
29
30#include <GraphicsDefs.h>
31
32/*!
33	\class Angle Angle.h
34	\brief Class for speeding up trig functions. Works in degrees only.
35*/
36class Angle {
37public:
38						Angle(float angle);
39						Angle();
40virtual					~Angle();
41
42		void			Normalize();
43
44		float			Sine(void);
45		Angle			InvSine(float value);
46
47		float			Cosine(void);
48		Angle			InvCosine(float value);
49
50		float			Tangent(int *status=NULL);
51		Angle			InvTangent(float value);
52
53		uint8			Quadrant(void);
54		Angle			Constrain180(void);
55		Angle			Constrain90(void);
56
57		void			SetValue(float angle);
58		float			Value(void) const;
59
60		Angle			&operator=(const Angle &from);
61		Angle			&operator=(const float &from);
62		Angle			&operator=(const long &from);
63		Angle			&operator=(const int &from);
64
65		bool			operator==(const Angle &from);
66		bool			operator!=(const Angle &from);
67		bool			operator<(const Angle &from);
68		bool			operator>(const Angle &from);
69		bool			operator>=(const Angle &from);
70		bool			operator<=(const Angle &from);
71
72protected:
73		void			_InitTrigTables(void);
74
75		float			fAngleValue;
76};
77
78#endif
79