// ken moore 9%24%03
// demonstrate polymorphism
#include <iostream>
using namespace std;
#include "shapes.h"
#include "rect.h"
#include "circle.h"
void main(){
	// make a shape
	shapes s;
	cout << s.getArea() << endl; // output shape area
	s.print();

	// make a rect
	rect r;
	cout << r.getArea() << endl;// output rect area
	r.print();// call print function in rect

	s = r;
	s.print();  // does not work due to slicing
	// goes to shape version of print

	// ---------- do pointer version ---------

	shapes *s2 = new shapes();//must use pointer notation
	cout << "s2->getArea() " << s2->getArea() << endl;
	s2->print();

	rect *r2 = new rect(2,4,4,8);
	cout << r2->getArea() << endl;
	r2->print();//call rectangle print
	circle *c = new circle(10,10,1);
	c->print();

	// demonstrate polymorphism
	// must have virtual print in shapes
	// must use pointers
	shapes *s3[3];
	s3[0] = r2;
	s3[1] = c;
	s3[2] = &s;
	cout << "printing array of shapes " << endl;
	for(int i=0; i<3; i++)
		s3[i]->print();
	delete s2;
	delete r2;
	delete c;
}