#ifndef ___SHAPE__HPP__
#define ___SHAPE__HPP__
#include <iostream>

// base class
class shape
{
protected:
	int x, y; 
public:
	shape():x(0), y(0) {  }//x = y = 0;
	void move(int nx, int ny) { x = nx; y = ny; }
	virtual void draw() { std::cout << "Shape: " << x << ", " << y << std::endl; }
};

class rectangle :public shape
{
protected:
	int height, width;
public:
	rectangle(int h = 0, int w = 0):shape(), height(h), width(w) {}
	void draw() 
	{ 
		std::cout << "Rectangle: (" << x << ", " << y << ") " << width << " " << height << std::endl; 
	}
};

class square :public rectangle
{
public:
	square(int w = 0) :rectangle(w, w) {}
	void draw()
	{
		std::cout << "Square: (" << x << ", " << y << ") " << width << " " << height << std::endl;
	}
};

class triangle :public shape
{
protected:
	int base, altitude;
public:
	triangle(int b, int a) :shape(), base(b), altitude(a) {}
	void draw()
	{
		std::cout << "Triangle: (" << x << ", " << y << ") " << base << " " << altitude << std::endl;
	}

};

class circle:public shape
{
protected:
	int radius;
public:
	circle(int r = 0) :shape(), radius(r) {}
	void draw()
	{
		std::cout << "Circle: (" << x << ", " << y << ") " << radius << std::endl;
	}
};

#endif