/************************************************************************
*																		*
*	File:		point3v.h												*
*																		*
*	Author:		Robb T. Koether											*
*																		*
*	Date:		Sep 9, 2003												*
*																		*
*	Purpose:	This file contains the definition of the Point3v class	*
*																		*
************************************************************************/

#ifndef POINT3V_H
#define POINT3V_H

//	Header files

#include <iostream>
#include <string>
#include "vector3v.h"

using namespace std;

class Vector3v;

/************************************************************************
*																		*
*	The definition of the Point3v class									*
*																		*
************************************************************************/

class Point3v
{
//	Public member functions

	public:
	
	//	Constructors
	
		Point3v()
			{coord[0] = 0.0; coord[1] = 0.0; coord[2] = 0.0; coord[3] = 1.0;}
			
		Point3v(const Point3v& p)
		{
			coord[0] = p.coord[0]; 
			coord[1] = p.coord[1]; 
			coord[2] = p.coord[2]; 
			coord[3] = p.coord[3];
		}
		
		Point3v(float x, float y, float z)
			{coord[0] = x; coord[1] = y; coord[2] = z; coord[3] = 1.0;}
	
	//	Inspectors
	
		float x() const {return coord[0];}
		float y() const {return coord[1];}
		float z() const {return coord[2];}
		float* v() const {return (float*)coord;}
	
	//	Mutators
	
		void x(float x) {coord[0] = x;}
		void y(float y) {coord[1] = y;}
		void z(float z) {coord[2] = z;}
		void set(float x, float y, float z)
			{coord[0] = x; coord[1] = y; coord[2] = z;}
	
		void Output(ostream& out) const
		{
			out << "(" << coord[0] << ", " << coord[1] << ", " << coord[2] << ")";
		}
		
	//	Other functions

		Vector3v subtractP(const Point3v& p) const;
		Point3v addV(const Vector3v& v) const;
		Point3v subtractV(const Vector3v& v) const;
		bool equal(const Point3v& p) const;

//	Public data members

	public:
		float coord[4];
};

//	Operators

ostream& operator<<(ostream& out, const Point3v& p);
Point3v operator+(const Point3v& p, const Vector3v& v);
Point3v operator-(const Point3v& p, const Vector3v& v);
Vector3v operator-(const Point3v& p, const Point3v& q);
bool operator==(const Point3v& p, const Point3v& q);

#endif