Vector3.h

// Vector3.h: interface for the CVector3 class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_VECTOR3_H__6BA61D2F_AB00_4903_8CD3_920EE6CDB144__INCLUDED_)
#define AFX_VECTOR3_H__6BA61D2F_AB00_4903_8CD3_920EE6CDB144__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

// CVector3
////////////
// A vector class for holding the xyz of a vector
////////////////////////
// This is our basic 3D point/vector class
struct CVector3
{
public:
	
	// A default constructor
	CVector3() {}

	// This is our constructor that allows us to initialize our data upon creating an instance
	CVector3(float X, float Y, float Z) 
	{ 
		x = X; y = Y; z = Z;
	}

	// Here we overload the + operator so we can add vectors together 
	CVector3 operator+(CVector3 vVector)
	{
		// Return the added vectors result.
		return CVector3(vVector.x + x, vVector.y + y, vVector.z + z);
	}

	// Here we overload the - operator so we can subtract vectors 
	CVector3 operator-(CVector3 vVector)
	{
		// Return the subtracted vectors result
		return CVector3(x - vVector.x, y - vVector.y, z - vVector.z);
	}
	
	// Here we overload the * operator so we can multiply by scalars
	CVector3 operator*(float num)
	{
		// Return the scaled vector
		return CVector3(x * num, y * num, z * num);
	}

	// Here we overload the / operator so we can divide by a scalar
	CVector3 operator/(float num)
	{
		// Return the scale vector
		return CVector3(x / num, y / num, z / num);
	}

	//cast to pointer to float for glVertex3fv etc
	operator float* () const {return (float*) this;}
	operator const float* () const {return (const float*) this;}

	float x, y, z;						
};


#endif // !defined(AFX_VECTOR3_H__6BA61D2F_AB00_4903_8CD3_920EE6CDB144__INCLUDED_)