CWE-ou-minkata/Sources/Plasma/CoreLib/hsPoint2.h

/*==LICENSE==*

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*==LICENSE==*/
#ifndef hsPoint2_Defined
#define hsPoint2_Defined

#include "hsScalar.h"

#if __MWERKS__
	//	This guy disables MetroWerks' desire to only include a file once, which obviously gets
	//	in the way of our little HS_POINT2.inc trick
	#pragma once off
#endif

#define HS_POINT2_NAME	hsIntPoint2
#define HS_POINT2_TYPE		Int32
#include "HS_POINT2.inc"
};

#define HS_POINT2_NAME	hsFixedPoint2
#define HS_POINT2_TYPE		hsFixed
#include "HS_POINT2.inc"

	hsFixedPoint2&	operator=(const hsIntPoint2& src)
				{
					this->fX	= hsIntToFixed(src.fX);
					this->fY	= hsIntToFixed(src.fY);
					return *this;
				}

	hsFixed Magnitude() const { return hsMagnitude32(fX, fY); }

	static hsFixed	Magnitude(hsFixed x, hsFixed y)
				{
					return hsMagnitude32(x, y);
				}
	static hsFixed	Distance(const hsFixedPoint2& p1, const hsFixedPoint2& p2)
				{
					return hsMagnitude32(p2.fX - p1.fX, p2.fY - p1.fY);
				}
};

#if HS_CAN_USE_FLOAT
	struct hsPolar {
		float		fRadius;
		float		fAngle;
	};

	#define HS_POINT2_NAME	hsFloatPoint2
	#define HS_POINT2_TYPE		float
	#include "HS_POINT2.inc"

		hsFloatPoint2&	operator=(const hsIntPoint2& src)
			{
				this->fX	= float(src.fX);
				this->fY	= float(src.fY);
				return *this;
			}

		friend hsFloatPoint2 operator*(const hsFloatPoint2& s, float t)
			{
				hsFloatPoint2	result;
				result.Set(s.fX * t, s.fY * t);
				return result;
			}
		friend hsFloatPoint2 operator*(float t, const hsFloatPoint2& s)
			{
				hsFloatPoint2	result;
				result.Set(s.fX * t, s.fY * t);
				return result;
			}

		hsFloatPoint2*	Grid(float period);
		hsBool	CloseEnough(const hsFloatPoint2* p, float tolerance) const;

		float		Magnitude() const { return hsFloatPoint2::Magnitude(fX, fY); }
		float		MagnitudeSquared() const { return fX * fX + fY * fY; }
		hsPolar*	ToPolar(hsPolar* polar) const;

		static float	Magnitude(float x, float y) { return hsSquareRoot(x * x + y * y); }
		static hsScalar	Distance(const hsFloatPoint2& p1, const hsFloatPoint2& p2);
		static hsFloatPoint2	Average(const hsFloatPoint2& a, const hsFloatPoint2& b)
						{
							hsFloatPoint2	result;
							result.Set((a.fX + b.fX) * float(0.5), (a.fY + b.fY) * float(0.5));
							return result;
						}
		static hsScalar	ComputeAngle(const hsFloatPoint2& a, const hsFloatPoint2& b, const hsFloatPoint2& c);
	};
#endif

#if HS_SCALAR_IS_FIXED
	typedef hsFixedPoint2	hsPoint2;
#else
	typedef hsFloatPoint2	hsPoint2;
#endif

#endif	// hsPoint2_Defined