/*!	\file Polygon.cpp
 * 	\brief Polygon implementations\n
 *      A Regular Polygon has a number of sides of equal length
 *
 */
#include <cmath>
#include <string>
#include "Polygon.h"

	/*!
	 * \fn Constructor
	 * Requires: Number of sides, length of sides
	 * Values default to 1.
	 **************************************************************************/
Polygon::Polygon(int numSides, double sideLength) {
	sides = numSides;
	length = sideLength;
}

	/*!
	 * getSides - returns the number of sides
	 * inspector
	 **************************************************************************/
int Polygon::getSides() const{
	return sides;
}

	/*!
	 * getLength - returns the length
	 * inspector
	 **************************************************************************/
double Polygon::getLength() const{
	return length;
}

	/*!
	 * getPerimeter - calculates and returns the perimeter
	 * facilitator
	 **************************************************************************/
double Polygon::getPerimeter() const{
	double perimeter;
	perimeter = getLength() * getSides();
	return perimeter;
}

	/*!
	 * getArea - calculates and returns the area
	 * facilitator
	 **************************************************************************/
double Polygon::getArea() const{
	double area;
	area =(getSides() * (pow(getLength(), 2))) / (4 * (tan(3.1416/getSides())));
	return area;
}

	/*!
	* operator < - sorts the Polygon objects based on size
	* facilitator
	***************************************************************************/
bool Polygon::operator<(Polygon &right) const
{
	if(getSides() < right.getSides())
		return true;
	else
		return false;
}

	/*!
	*operator == compares polygons
	*facilitatos
	***************************************************************************/
bool Polygon::operator==(Polygon &right) const
{
	if(getSides() == right.getSides())
		return true;
	else
		return false;
}

/*!
 * operator<< - overloaded operator for outputting Polygon's string name
 * facilitator
 **************************************************************************/
ostream &operator<<(ostream &output, const Polygon &right){
	static string shapeNames[9] = {"","","","Triangle","Square","Pentagon","Hexagon","Septagon","Octogon"};
	output << shapeNames[right.getSides()];
	return output;
}