Half Life Game Level Viewer

//
//	Vector2.h
//
//	Copyright (c) Paul Higinbotham
//

#ifndef __VECTOR2_H_
#define __VECTOR2_H_


#include "Math.h"
#include <cassert>


namespace ZGraphics
{


template <typename TR>
class Vector2
{
public:
	Vector2();
	Vector2(TR fX, TR fY);
	Vector2(const TR fVector[2]);
	Vector2(const Vector2<TR> & rCopy);
	~Vector2() {}

	// Data access
	const TR & operator[] (size_t tIndex) const;
	TR & operator[] (size_t tIndex);
	const TR * GetPtr() const;
	TR * GetPtr();
	TR X() const;
	TR Y() const;

	// assignment
	Vector2 & operator= (const Vector2 & rhs);
	Vector2 & operator= (const float fVector[2]);

	// arithmetic
	Vector2 operator* (const Vector2 &rhs) const;
	Vector2 operator* (TR fScalar) const;
	Vector2 operator/ (TR fScalar) const;
	Vector2 operator+ (const Vector2 &rhs) const;
	Vector2 operator- (const Vector2 &rhs) const;
	Vector2 operator- () const;
	//
	Vector2 & operator*= (TR fScalar);
	Vector2 & operator/= (TR fScalar);
	Vector2 & operator+= (const Vector2 & rhs);
	Vector2 & operator-= (const Vector2 & rhs);

	// compare
	bool operator== (const Vector2 & rhs) const;
	bool operator!= (const Vector2 & rhs) const;

	// Other operations
	TR Dot(const Vector2& rVector)const;
	TR Normalize();
	TR Mag() const;
	TR MagSquared() const;
	Vector2 & ABS();
	Vector2 & Invert();

	// Class constants
	static const Vector2 cZero;
    static const Vector2 cUnitX;
    static const Vector2 cUnitY;

private:
	TR	m_vData[2];
};


// Include the implementation file
#include "Vector2.inl"


typedef Vector2<float> Vector2f;
typedef Vector2<double> Vector2d;


} /* namespace ZGraphics */


#endif /* __VECTOR2_H_ */