vector.h

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#pragma once
#include <cmath>
#include <float.h>

struct CVector
{
public :
	CVector() : x( 0.0f ), y( 0.0f ), z( 0.0f )
	{}
	CVector( float x, float y, float z ) : x( x ), y( y ), z( z )
	{}
	float x, y, z;

	float Magnitude() 
	{ 
		return sqrt( x*x + y*y + z*z ); 
	}
	CVector Normalize()
	{
		float m = Magnitude();
		return CVector( x/m, y/m, z/m);
	}
	CVector operator + ( CVector v ) 
	{
		return CVector ( x + v.x, y + v.y, z + v.z );
	}
	CVector operator - ( CVector v ) 
	{
		return CVector ( x - v.x, y - v.y, z - v.z );
	}
	void operator += ( CVector v ) 
	{ 
		x = v.x + x; y = v.y + y; z = v.z + z; 
	}
	CVector operator * ( float scale ) 
	{ 
		return CVector( x * scale, y * scale, z * scale );
	}
	CVector operator ^ ( CVector v )
	{
		return CVector( y * v.z - z * v.y,
		-x * v.z - z * v.x,
		x * v.y - y * v.x );
	}
	float operator * (CVector v)
	{ 
		return x*v.x+y*v.y+z*v.z;
	}

};